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0 | SRM_M_UNIHIF_0_XXXX_2207XX.pdf | 1 | tradeloom_data/HVAC Data Sources/SRM_M_UNIHIF_0_XXXX_2207XX.pdf | MOOVAIR MODEL FACTORY CODE PRODUCT CODE
DUB12HIFU230X5A MFA2U-12HRFN1-MW5W22022611000207
DMA12HOS25230E8 MOX230-12HFN1-MV5W 22022016016322
DMA12HOS28230E8 MOX330-12HFN1-MW5W 22022016016220
SERVICE MANUAL
SRM_M_UNIHIF_0_XXXX_2207XX moovair.ca |
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1 | SRM_M_UNIHIF_0_XXXX_2207XX.pdf | 2 | tradeloom_data/HVAC Data Sources/SRM_M_UNIHIF_0_XXXX_2207XX.pdf | CONSOLE INVERTER SERIES
SM_NEW CONSOLE(GA)_R410A_3D INV_US1_NA_2207
SERVICE MANUAL
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3 | SRM_M_UNIHIF_0_XXXX_2207XX.pdf | 4 | tradeloom_data/HVAC Data Sources/SRM_M_UNIHIF_0_XXXX_2207XX.pdf | Table of Contents
§. Safety Precautions
1. Precautions
2. Information servicing
§. Model Reference & External Appearance
1. Model Reference
2. External Appearance
§. Indoor Unit
1. Indoor Unit - New Console Type
§. Outdoor Unit
1. Dimensional Drawings
2. Service Space
3. Capacity Correction Factor for Height Difference
4. Noise Criterion Curves
5. Refrigerant Cycle Diagrams
6. Electrical Wiring Diagrams
§. Installation
§. Maintenance
§. Product Features |
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§. Troubleshooting
1. Safety Caution
2. General Troubleshooting
3. Information Inquiry
4. Error Diagnosis and Troubleshooting Without Error Code
5. Quick Maintenance by Error Code
6. Troubleshooting by Error Code
7. Check Procedures
§. Indoor Unit Disassembly
1. Indoor Unit - New Console Type
§. Outdoor Unit Disassembly
Appendix
i) Temperature Sensor Resistance Value Table for T1,T2,T3 and T4 (°C – K)
ii) Temperature Sensor Resistance Value Table for TP(for some units) (°C – K)
iii) Pressure On Service Port |
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6 | SRM_M_UNIHIF_0_XXXX_2207XX.pdf | 7 | tradeloom_data/HVAC Data Sources/SRM_M_UNIHIF_0_XXXX_2207XX.pdf | Contents
1. Precautions .............................................................................................................2
2. Information servicing(For flammable materials) .................................................3
Safety Precautions |
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7 | SRM_M_UNIHIF_0_XXXX_2207XX.pdf | 8 | tradeloom_data/HVAC Data Sources/SRM_M_UNIHIF_0_XXXX_2207XX.pdf | Safety Precautions 2
1. Precautions
To prevent personal injury, or property or unit damage,
adhere to all precautionary measures and instructions
outlined in this manual. Before servicing a unit, refer to this
service manual and its relevant sections.
Failure to adhere to all precautionary measures listed in this
section may result in personal injury, damage to the unit or
to property, or in extreme cases, death.
WARNING indicates a potentially hazardous
situation which if not avoided could result in serious
personal injury, or death.
CAUTION indicates a potentially hazardous situation
which if not avoided could result in minor or
moderate personal injury, or unit damage.
1.1 In case of Accidents or Emergency
WARNING
• If a gas leak is suspected, immediately turn off the
gas and ventilate the area if a gas leak is suspected
before turning the unit on.
• If strange sounds or smoke is detected from the unit,
turn the breaker off and disconnect the power supply
cable.
• If the unit comes into contact with liquid, contact an
authorized service center.
• If liquid from the batteries makes contact with skin or
clothing, immediately rinse or wash the area well with
clean water.
• Do not insert hands or other objects into the air inlet
or outlet while the unit is plugged in.
• Do not operate the unit with wet hands.
• Do not use a remote controller that has previously
been exposed to battery damage or battery leakage.
CAUTION
• Clean and ventilate the unit at regular intervals when
operating it near a stove or near similar devices.
• Do not use the unit during severe weather conditions.
If possible, remove the product from the window
before such occurrences.
1.2 Pre-Installation and Installation
WARNING
• Use this unit only on a dedicated circuit.
• Damage to the installation area could cause the unit
to fall, potentially resulting in personal injury, prop-
erty damage, or product failure.
• Only qualified personnel should disassemble, install,
remove, or repair the unit.
• Only a qualified electrician should perform electri-
cal work. For more information, contact your dealer,
seller, or an authorized service center.
CAUTION
• While unpacking be careful of sharp edges around
the unit as well as the edges of the fins on the con-
denser and evaporator.
1.3 Operation and Maintenance
WARNING
• Do not use defective or under-rated circuit breakers.
• Ensure the unit is properly grounded and that a
dedicated circuit and breaker are installed.
• Do not modify or extend the power cable. Ensure
the power cable is secure and not damaged during
operation.
• Do not unplug the power supply plug during
operation.
• Do not store or use flammable materials near the
unit.
• Do not open the inlet grill of the unit during
operation.
• Do not touch the electrostatic filter if the unit is
equipped with one.
• Do not block the inlet or outlet of air flow to the unit.
• Do not use harsh detergents, solvents, or similar items
to clean the unit. Use a soft cloth for cleaning.
• Do not touch the metal parts of the unit when
removing the air filter as they are very sharp.
• Do not step on or place anything on the unit or
outdoor units.
• Do not drink water drained from the unit
• Avoid direct skin contact with water drained from the
unit.
• Use a firm stool or step ladder according to
manufacturer procedures when cleaning or
maintaining the unit.
CAUTION
• Do not install or operate the unit for an extended
period of time in areas of high humidity or in an
environment directly exposing it to sea wind or salt
spray.
• Do not install the unit on a defective or damaged
installation stand, or in an unsecure location.
• Ensure the unit is installed at a level position
• Do not install the unit where noise or air discharge
created by the outdoor unit will negatively impact the
environment or nearby residences.
• Do not expose skin directly to the air discharged by
the unit for prolonged periods of time.
• Ensure the unit do not operate in areas water or
other liquids.
• Ensure the drain hose is installed correctly to ensure
proper water drainage.
• When lifting or transporting the unit, it is
recommended that two or more people are used for
this task.
• When the unit is not to be used for an extended time,
disconnect the power supply or turn off the breaker. |
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2. Information servicing(For
flammable materials)
2.1 Checks to the area
• Prior to beginning work on systems containing flammable
refrigerants, safety checks are necessary to ensure that the
risk of ignition is minimized. For repair to the refrigerating
system, the following precautions shall be complied with
prior to conducting work on the system.
2.2 Work procedure
• Works shall be undertaken under a controlled procedure
so as to minimise the risk of a flammable gas or vapour
being present while the work is being performed. Technical
personnel in charge of operation, supervision, maintenance
of air-conditioning systems shall be adequately instructed
and competent with respect to their tasks.Works shall
be undertaken with appropriate tools only (In case of
uncertainty, please consult the manufacturer of the tools for
use with flammable refrigerants)
2.3 General work area
• All maintenance staff and others working in the local area
shall be instructed on the nature of work being carried out.
work in confined sapces shall be avoided. The area around
the work space shall be sectioned off. Ensure that the
conditions within the area have been made safe by control
of flammable material.
2.4 Checking for presence of refrigerant
• The area shall be checked with an appropriate refrigerant
detector prior to and during work, to ensure the technician
is aware of potentially flammable atmospheres. Ensure that
the leak detection equipment being used is suitable for use
with flammable refrigerants, i.e. no sparking, adequately
sealed or intrinsically safe.
2.5 Presence of fire extinguisher
• If any hot work is to be conducted on the refrigeration
equipment or any associated parts, appropriate fire
extinguishing equipment shall be available to hand. Have
a dry powder or CO2 fire extinguisher adjacent to the
charging area.
2.6 No ignition sources
• No person carrying out work in relation to a refrigeration
system which involves exposing any pipe work that contains
or has contained flammable refrigerant shall use any sources
of ignition in such a manner that it may lead to the risk of
fire or explosion. All possible ignition sources, including
cigarette smoking, should be kept sufficiently far away from
the site of installation, repairing, removing and disposal,
during which flammable refrigerant can possibly be released
to the surrounding space. Prior to work taking place, the
area around the equipment is to be surveyed to make sure
that there are no flammable hazards or ignition risks. NO
SMOKING signs shall be displayed.
2.7 Ventilated area
• Ensure that the area is in the open or that it is adequately
ventilated before breaking into the system or conducting any
hot work. A degree of ventilation shall continue during the
period that the work is carried out. The ventilation should
safely disperse any released refrigerant and preferably expel
it externally into the atmosphere.
2.8 Checks to the refrigeration equipment
• Where electrical components are being changed,
they shall be fit for the purpose and to the correct
specification. At all times the manufacturer’s
maintenance and service guidelines shall be followed.
If in doubt consult the manufacturer’s technical
department for assistance. The following checks
shall be applied to installations using flammable
refrigerants:
• the charge size is in accordance with the room size
within which the refrigerant containing parts are
installed;
• the ventilation machinery and outlets are operating
adequately and are not obstructed;
• if an indirect refrigerating circuit is being used, the
secondary circuit shall be checked for the presence
of refrigerant; marking to the equipment continues
to be visible and legible.
• markings and signs that are illegible shall be
corrected;
• refrigeration pipe or components are installed in
a position where they are unlikely to be exposed
to any substance which may corrode refrigerant
containing components, unless the components
are constructed of materials which are inherently
resistant to being corroded or are suitably protected
against being so corroded.
2.9 Checks to electrical devices
• Repair and maintenance to electrical components shall
include initial safety checks and component inspection
procedures. If a fault exists that could compromise
safety, then no electrical supply shall be connected to
the circuit until it is satisfactorily dealt with. If the fault
cannot be corrected immediately but it is necessary to
continue operation, and adequate temporary solution
shall be used. This shall be reported to the owner of
the equipment so all parties are advised.
Initial safety checks shall include: |
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• that capacitors are discharged: this shall be done in a
safe manner to avoid possibility of sparking
• that there no live electrical components and wiring
are exposed while charging, recovering or purging the
system;
• that there is continuity of earth bonding.
2.10 Repairs to sealed components
• During repairs to sealed components, all electrical
supplies shall be disconnected from the equipment
being worked upon prior to any removal of sealed
covers, etc. If it is absolutely necessary to have an
electrical supply to equipment during servicing, then
a permanently operating form of leak detection shall
be located at the most critical point to warn of a
potentially hazardous situation.
• Particular attention shall be paid to the following to
ensure that by working on electrical components, the
casing is not altered in such a way that the level of
protection is affected. This shall include damage to
cables, excessive number of connections, terminals
not made to original specification, damage to seals,
incorrect fitting of glands, etc.
• Ensure that apparatus is mounted securely.
• Ensure that seals or sealing materials have not
degraded such that they no longer serve the
purpose of preventing the ingress of flammable
atmospheres. Replacement parts shall be in
accordance with the manufacturer’s specifications.
NOTE: The use of silicon sealant may inhibit the
effectiveness of some types of leak detection equipment.
Intrinsically safe components do not have to be isolated
prior to working on them.
2.11 Repair to intrinsically safe components
• Do not apply any permanent inductive or capacitance
loads to the circuit without ensuring that this will not
exceed the permissible voltage and current permitted
for the equipment in use. Intrinsically safe components
are the only types that can be worked on while live
in the presence of a flammable atmosphere. The test
apparatus shall be at the correct rating.
• Replace components only with parts specified by the
manufacturer. Other parts may result in the ignition of
refrigerant in the atmosphere from a leak.
2.12 Cabling
• Check that cabling will not be subject to wear,
corrosion, excessive pressure, vibration, sharp edges
or any other adverse environmental effects. The check
shall also take into account the effects of aging or
continual vibration from sources such as compressors
or fans.
2.13 Detection of flammable refrigerants
• Under no circumstances shall potential sources of
ignition be used in the searching for or detection of
refrigerant leaks. A halide torch (or any other detector
using a naked flame) shall not be used.
2.14 Leak detection methods
• The following leak detection methods are deemed
acceptable for systems containing flammable
refrigerants. Electronic leak detectors shall be used
to detect flammable refrigerants, but the sensitivity
may not be adequate, or may need re-calibration.
(Detection equipment shall be calibrated in a
refrigerant-free area.) Ensure that the detector is not
a potential source of ignition and is suitable for the
refrigerant used. Leak detection equipment shall be
set at a percentage of the LFL of the refrigerant and
shall be calibrated to the refrigerant employed and
the appropriate percentage of gas (25 % maximum)
is confirmed. Leak detection fluids are suitable for
use with most refrigerants but the use of detergents
containing chlorine shall be avoided as the chlorine
may react with the refrigerant and corrode the copper
pipe-work.
• If a leak is suspected, all naked flames shall be
removed or extinguished.
• If a leakage of refrigerant is found which requires
brazing, all of the refrigerant shall be recovered
from the system, or isolated (by means of shut off
valves) in a part of the systemremote from the leak.
Oxygen free nitrogen (OFN) shall then be purged
through the system both before and during the
brazing process.
2.15 Removal and evacuation
• When breaking into the refrigerant circuit to make
repairs or for any other purpose, conventional
procedures shall be used. However, it is important
that best practice is followed since flammability is a
consideration.
• The following procedure shall be adhered to:
• remove refrigerant;
• purge the circuit with inert gas;
• evacuate;
• purge again with inert gas;
• open the circuit by cutting or brazing. |
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10 | SRM_M_UNIHIF_0_XXXX_2207XX.pdf | 11 | tradeloom_data/HVAC Data Sources/SRM_M_UNIHIF_0_XXXX_2207XX.pdf | Safety Precautions 5
• The refrigerant charge shall be recovered into the
correct recovery cylinders. The system shall be flushed
with OFN to render the unit safe. This process may
need to be repeated several times. Compressed air or
oxygen shall not be used for this task. Flushing shall
be achieved by breaking the vacuum in the system
with OFN and continuing to fill until the working
pressure is achieved, then venting to atmosphere, and
finally pulling down to a vacuum. This process shall
be repeated until no refrigerant is within the system.
When the final OFN charge is used, the system shall
be vented down to atmospheric pressure to enable
work to take place. This operation is absolutely vital if
brazing operations on the pipe-work are to take place.
• Ensure that the outlet for the vacuum pump is not
close to any ignition sources and there is ventilation
available.
2.16 Charging procedures
• In addition to conventional charging procedures, the
following requirements shall be followed:
• Ensure that contamination of different refrigerants
does not occur when using charging equipment.
Hoses or lines shall be as short as possible to
minimize the amount of refrigerant contained in
them.
• Cylinders shall be kept upright.
• Ensure that the refrigeration system is earthed prior
to charging the system with refrigerant.
• Label the system when charging is complete (if not
already).
• Extreme care shall be taken not to overfill the
refrigeration system.
• Prior to recharging the system it shall be pressure
tested with OFN. The system shall be leak tested on
completion of charging but prior to commissioning.
A follow up leak test shall be carried out prior to
leaving the site.
2.17 Decommissioning
Before carrying out this procedure, it is essential that the
technician is completely familiar with the equipment and
all its detail. It is recommended good practice that all
refrigerants are recovered safely. Prior to the task being
carried out, an oil and refrigerant sample shall be taken.
In case analysis is required prior to re-use of reclaimed
refrigerant. It is essential that electrical power is available
before the task is commenced.
• Become familiar with the equipment and its operation.
• Isolate system electrically.
• Before attempting the procedure ensure that:
• mechanical handling equipment is available, if
required, for handling refrigerant cylinders;
• all personal protective equipment is available and
being used correctly;
• the recovery process is supervised at all times by a
competent person;
• recovery equipment and cylinders conform to the
appropriate standards.
• Pump down refrigerant system, if possible.
• If a vacuum is not possible, make a manifold so that
refrigerant can be removed from various parts of the
system.
• Make sure that cylinder is situated on the scales before
recovery takes place.
• Start the recovery machine and operate in accordance
with manufacturer’s instructions.
• Do not overfill cylinders. (No more than 80 % volume
liquid charge).
• Do not exceed the maximum working pressure of the
cylinder, even temporarily.
• When the cylinders have been filled correctly and the
process completed, make sure that the cylinders and
the equipment are removed from site promptly and all
isolation valves on the equipment are closed off.
• Recovered refrigerant shall not be charged into
another refrigeration system unless it has been cleaned
and checked.
2.18 Labelling
• Equipment shall be labelled stating that it has been
de-commissioned and emptied of refrigerant. The label
shall be dated and signed. Ensure that there are labels
on the equipment stating the equipment contains
flammable refrigerant.
2.19 Recovery
• When removing refrigerant from a system, either for
servicing or decommissioning, it is recommended good
practice that all refrigerants are removed safely.
• When transferring refrigerant into cylinders, ensure
that only appropriate refrigerant recovery cylinders
are employed. Ensure that the correct numbers of
cylinders for holding the total system charge are
available. All cylinders to be used are designated
for the recovered refrigerant and labelled for that
refrigerant (i.e. special cylinders for the recovery of
refrigerant). Cylinders shall be complete with pressure
relief valve and associated shut-off valves in good
working order. |
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• Empty recovery cylinders are evacuated and, if
possible, cooled before recovery occurs.
• The recovery equipment shall be in good working
order with a set of instructions concerning the
equipment that is at hand and shall be suitable for the
recovery of flammable refrigerants. In addition, a set
of calibrated weighing scales shall be available and in
good working order.
• Hoses shall be complete with leak-free disconnect
couplings and in good condition. Before using the
recovery machine, check that it is in satisfactory
working order, has been properly maintained and that
any associated electrical components are sealed to
prevent ignition in the event of a refrigerant release.
Consult manufacturer if in doubt.
• The recovered refrigerant shall be returned to the
refrigerant supplier in the correct recovery cylinder,
and the relevant Waste Transfer Note arranged. Do not
mix refrigerants in recovery units and especially not in
cylinders.
• If compressors or compressor oils are to be removed,
ensure that they have been evacuated to an
acceptable level to make certain that flammable
refrigerant does not remain within the lubricant.
The evacuation process shall be carried out prior to
returning the compressor to the suppliers. Only electric
heating to the compressor body shall be employed
to accelerate this process. When oil is drained from a
system, it shall be carried out safely.
2.20 Venting of HC Refrigerant (R290)
Venting may be carried out as an alternative to recovering
the refrigerant. Because HC refrigerants have no ODP and
negligible GWP , under certain circumstances it may be
considered acceptable to vent the refrigerant. However, if
this is to be considered, it should be done in accordance
with the relevant national rules or regulations, if they
permit.
In particular, before venting a system, it would be
necessary to:
• Ensure that legislation relating to waste material has
been considered
• Ensure that environmental legislation has been
considered
• Ensure that legislation addressing safety of hazardous
substances is satisfied
• Venting is only carried out with systems that contain a
small quantity of refrigerant, typically less than 500 g.
• Venting to inside a building is not permissible under
any circumstances
• Venting must not be to a public area, or where people
are unaware of the procedure taking place
• The hose must be of sufficient length and diameter
such that it will extend to at least 3 m beyond the
outside of the building
• The venting should only take place on the certainty
that the refrigerant will not get blown back into any
adjacent buildings, and that it will not migrate to a
location below ground level
• The hose is made of material that is compatible for use
with HC refrigerants and oil
• A device is used to raise the hose discharge at least
1 m above ground level and so that the discharge is
pointed in an upwards direction (to assist with dilution)
• The end of the hose can now discharge and disperse
the flammable fumes into the ambient air.
• There should not be any restriction or sharp bends
within the vent-line which will hinder the ease of flow.
• There must be no sources of ignition near the hose
discharge
• The hose should be regularly checked to ensure that
there are no holes or kinks in it, that could lead to
leakage or blocking of the passage of flow
When carrying out the venting, the flow of refrigerant
should be metered using manifold gauges to a low flow
rate, so as to ensure the refrigerant is well diluted. Once
the refrigerant has ceased flowing, if possible, the system
should be flushed out with OFN; if not, then the system
should be pressurised with OFN and the venting procedure
carried out two or more times, to ensure that there is
minimal HC refrigerant remaining inside the system. |
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1. Model Reference ....................................................................................................2
2 External Appearance .............................................................................................3
Model Reference |
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1. Model Reference
Refer to the following table to determine the specific indoor and outdoor unit model number of your
purchased equipment.
Indoor Unit Model Universal Outdoor Unit Model Capacity
(Btu/h) Power Supply
Console
MFA2U-12HRFN1-MW5W
MOX230-12HFN1-MV5W 9k
1Phase,
208/230V~, 60Hz
MOX330-12HFN1-MW5W 9k Hyper Heat
MOX230-12HFN1-MV5W 12k
MOX330-12HFN1-MW5W 12k Hyper
Heat
MFA2U-16HRFN1-MV0W
MOX430-18HFN1-MU0W 18k
MOX430-17HFN1-MT0W 18k Hyper
Heat |
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2. External Appearance
2.1 Indoor Unit
New Console
2.2 Outdoor Unit
Single Fan Outdoor Unit
|
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1. Feature....................................................................................................................2
2. Dimensional Drawings ..........................................................................................4
3. Part names .............................................................................................................5
4. Service Place ...........................................................................................................5
5. Accessories .............................................................................................................6
6 Air Velocity and Temperature Distributions ........................................................8
7. Noise Criterion Curves .........................................................................................10
8. Electrical Characteristics ......................................................................................11
9. Electrical Wiring Diagrams ..................................................................................11
Indoor Unit-New Console |
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1. Feature
1.1 An Elegant And Compact Design
• The look of newly-upgraded console unit features flowing lines that is aesthetic enough.
• Its unobtrusive design can easily fit into most interiors with different decorating-schemes.
• The width of the machine has been reduced by 10mm, taking less space.
1.2 A Perfect Choice For New Buildings And Renovation Projects
• Console unit can be installed standing on the floor, or wall-mounted
• It is a great option for radiator replacement in order to save your space while provide more functions.
1.3 Dual Air Outlets With Larger Dimension
Efficiently improve air volume, providing constant, quick cooling and heating throughout whole year.
99mm
65.3% LARGER upper air outlet*
Dimension changes from
516mm*43mm to 655mm*56mm
94.1% WIDER lower air outlet*
99mm large lower air out deliver
even warm air distribution |
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• Wide Airflow & Constant Comfort-Dual air outlets satisfy both cooling and heating needs in different seasons and
allows a quick comfort of the room.
\
*Compared to last generation console unit
1.4 Air Quality
We care your indoor air quality from many perspectives
• Get Ideal HUMIDITY for You
• New console efficiently dehumidify the air to keep the ambient air dry and at comfort humidity level.
• Display screen on front panel is reliable and user-friendly to operate to use.
• Ion-Generator for a Space with Better Air Quality
• A built-in positive & negative ion generator in Midea console produces powerful ions that binds to and neutralises
airborne pollutants for a cleaner environment.
• Ions attach to airborne particles, which are then later collected onto an oppositely-charged flat plate. |
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2. Dimensional Drawings |
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3. Part names
Drain hose
Refrigerant
connecting
pipe
Display panel
Air inlet (with air filter in it)
Air flow louver (at air outlet)
Air flow louver (at air outlet)
4. Service Place
≥NN
≥NN
NN≥
NN≥ |
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5. Accessories
The air conditioning system comes with the following accessories. Use all of the installation parts and accessories to in-
stall the air conditioner. Improper installation may result in water leakage, electrical shock and fire, or equipment failure.
Name Shape Quantity
Remote controller 1
Battery (some models) 2
Wired remote controller(some models) 1
Manual - 2-4
Air freshening filter (some models) 2
Soundproof/insulation sheath
(some models)
2
Heat insulation pipe 1
Anchor 6(depending on
models)
Mounting plate fixing screw 6(depending on
models)
Copper nut 2
Hook 2
Drain joint (some models) 1
Seal ring (some models) 1
Magnetic ring (wrap the electric wires S1 & S2 ( P & Q & E )
around the magnetic ring twice)
44 12&
1
Magnetic ring (Hitch on the connective cable between the
indoor unit and outdoor unit after installation.)(some models) 1 |
|
21 | SRM_M_UNIHIF_0_XXXX_2207XX.pdf | 22 | tradeloom_data/HVAC Data Sources/SRM_M_UNIHIF_0_XXXX_2207XX.pdf | IDU-New Console 7
Transfer connector(Φ12.7-Φ15.9)/(Φ0.5in-Φ0.63in)(Packed with
the indoor unit) NOTE: Pipe size may differ from appliance to
appliance. To meet different pipe size requirements, sometimes
the pipe connections need a transfer connector installed on the
outdoor unit .
1
(on some models)
Transfer connector(Φ6.35-Φ9.52)/(Φ0.25in-Φ0.37in)(Packed with
the indoor unit) NOTE: Pipe size may differ from appliance to
appliance. To meet different pipe size requirements, sometimes
the pipe connections need a transfer connector installed on the
outdoor unit .
1
(on some models)
Transfer connector(Φ9.52-Φ12.7)/(Φ0.375in-Φ0.5in)(Packed with
the indoor unit) NOTE: Pipe size may differ from appliance to
appliance. To meet different pipe size requirements, sometimes
the pipe connections need a transfer connector installed on the
outdoor unit .
1
(on some models)
Red short connected wire (Applied to the W/L pin of outdoor
unit terminal block be short-circuited.) -
1
(on some models)
Optional accessories:
• There are two types of remote controls: wired and wireless.
• Select a remote controller based on customer preferences and requirements and install in an appropriate place.
• Refer to catalogues and technical literature for guidance on selecting a suitable remote controller. |
|
22 | SRM_M_UNIHIF_0_XXXX_2207XX.pdf | 23 | tradeloom_data/HVAC Data Sources/SRM_M_UNIHIF_0_XXXX_2207XX.pdf | IDU-New Console 8
6. Air Velocity and Temperature Distributions
Discharge Angle 70°(Upper)/ 0°(Lower)
Cooling airflow velocity distributions
Cooling temperature distributions
|
|
23 | SRM_M_UNIHIF_0_XXXX_2207XX.pdf | 24 | tradeloom_data/HVAC Data Sources/SRM_M_UNIHIF_0_XXXX_2207XX.pdf | IDU-New Console 9
Discharge Angle 20°(Upper)/ 0°(Lower)
Heating airflow velocity distributions
Heating temperature distributions
|
|
24 | SRM_M_UNIHIF_0_XXXX_2207XX.pdf | 25 | tradeloom_data/HVAC Data Sources/SRM_M_UNIHIF_0_XXXX_2207XX.pdf | IDU-New Console 10
8. Noise Criterion Curves
1m/3.28ft
1.5m/4.92ft
Notes:
-Sound measured at 1m/3.28 away from the unit and 1.5m/4.92ft away from the ground.
-Data is valid at free field condition
-Data is valid at nominal operation condition
-Reference acoustic pressure OdB = 20µPa
-Sound level will vary depending on a range of factors such as the construction -(acoustic absorption coefficient) of particular room
in which the equipment is installed.
-The operating conditions are assumed to be standard.
MFA2U-12HRFN1-MW5W MFA2U-16HRFN1-MV0W
|
|
25 | SRM_M_UNIHIF_0_XXXX_2207XX.pdf | 26 | tradeloom_data/HVAC Data Sources/SRM_M_UNIHIF_0_XXXX_2207XX.pdf | IDU-New Console 11
9. Electrical Characteristics
Capacity (Btu/h) 9k/12k 9k/12k hyper
Heat 18k 18k hyper Heat
Power (Outdoor) Phase 1 1 1 1
Frequency And Volt 208/230V,60Hz
Max Fuse Indoor unit(A) 15 15 15 15
Outdoor unit(A) 15 15 30 25
Outdoor Unit
Power Wire
Line quantity 3 3 3 3
Line
diameter(AWG) 14/2.5mm² 14/2.5mm² 14/2.5mm² 12/4.0mm²
Outdoor-indoor
Connection Wire
Line quantity 4 4 4 4
Line
diameter(AWG) 16/1.5mm2 16/1.5mm2 16/1.5mm2 16/1.5mm2
10. Electrical Wiring Diagrams
IDU Model IDU Wiring Diagram
MFA2U-12HRFN1-MW5W
16022700003488
MFA2U-16HRFN1-MV0W
Abbreviation Paraphrase
Y/G Yellow-Green Conductor
L LIVE
N NEUTRAL
TO CCM Comm.Bus Central Controller
T1 Indoor Room Temperature
T2 Coil Temperature of Indoor Heat Exchanger |
|
26 | SRM_M_UNIHIF_0_XXXX_2207XX.pdf | 27 | tradeloom_data/HVAC Data Sources/SRM_M_UNIHIF_0_XXXX_2207XX.pdf | ||
27 | SRM_M_UNIHIF_0_XXXX_2207XX.pdf | 28 | tradeloom_data/HVAC Data Sources/SRM_M_UNIHIF_0_XXXX_2207XX.pdf | Contents
1. Dimensional Drawings ..........................................................................................2
2. Service Place .........................................................................................................18
3. Capacity Correction Factor for Height Difference .............................................19
4. Noise Criterion Curves .........................................................................................25
5. Refrigerant Cycle Diagrams ................................................................................27
6. Electrical Wiring Diagrams ..................................................................................29
Outdoor Unit |
|
28 | SRM_M_UNIHIF_0_XXXX_2207XX.pdf | 29 | tradeloom_data/HVAC Data Sources/SRM_M_UNIHIF_0_XXXX_2207XX.pdf | Outdoor Unit 2
1. Dimensional Drawings
Please check the corresponding dimensional drawing according to the panel plate.
ODU Model Panel Plate
MOX230-12HFN1-MV5W X230
MOX330-12HFN1-MW5W X330
MOX430-18HFN1-MU0W X430
MOX430-17HFN1-MT0W X430 |
|
29 | SRM_M_UNIHIF_0_XXXX_2207XX.pdf | 30 | tradeloom_data/HVAC Data Sources/SRM_M_UNIHIF_0_XXXX_2207XX.pdf | Outdoor Unit 3
Panel Plate X230 (Rounded grille 1) |
|
30 | SRM_M_UNIHIF_0_XXXX_2207XX.pdf | 31 | tradeloom_data/HVAC Data Sources/SRM_M_UNIHIF_0_XXXX_2207XX.pdf | Outdoor Unit 4
Panel Plate X230 (Rounded grille 2) |
|
31 | SRM_M_UNIHIF_0_XXXX_2207XX.pdf | 32 | tradeloom_data/HVAC Data Sources/SRM_M_UNIHIF_0_XXXX_2207XX.pdf | Outdoor Unit 5
Panel Plate X230(Square grille) |
|
32 | SRM_M_UNIHIF_0_XXXX_2207XX.pdf | 33 | tradeloom_data/HVAC Data Sources/SRM_M_UNIHIF_0_XXXX_2207XX.pdf | Outdoor Unit 6
Panel Plate X330(Rounded grille 1) |
|
33 | SRM_M_UNIHIF_0_XXXX_2207XX.pdf | 34 | tradeloom_data/HVAC Data Sources/SRM_M_UNIHIF_0_XXXX_2207XX.pdf | Outdoor Unit 7
Panel Plate X330(Rounded grille 2) |
|
34 | SRM_M_UNIHIF_0_XXXX_2207XX.pdf | 35 | tradeloom_data/HVAC Data Sources/SRM_M_UNIHIF_0_XXXX_2207XX.pdf | Outdoor Unit 8
Panel Plate X330(Square grille) |
|
35 | SRM_M_UNIHIF_0_XXXX_2207XX.pdf | 36 | tradeloom_data/HVAC Data Sources/SRM_M_UNIHIF_0_XXXX_2207XX.pdf | Outdoor Unit 9
Panel Plate X430(Rounded grille 1) |
|
36 | SRM_M_UNIHIF_0_XXXX_2207XX.pdf | 37 | tradeloom_data/HVAC Data Sources/SRM_M_UNIHIF_0_XXXX_2207XX.pdf | Outdoor Unit 10
Panel Plate X430(Rounded grille 2) |
|
37 | SRM_M_UNIHIF_0_XXXX_2207XX.pdf | 38 | tradeloom_data/HVAC Data Sources/SRM_M_UNIHIF_0_XXXX_2207XX.pdf | Outdoor Unit 11
Panel Plate X430(Square grille) |
|
38 | SRM_M_UNIHIF_0_XXXX_2207XX.pdf | 39 | tradeloom_data/HVAC Data Sources/SRM_M_UNIHIF_0_XXXX_2207XX.pdf | Outdoor Unit 12
Panel Plate D30(Rounded grille 1) |
|
39 | SRM_M_UNIHIF_0_XXXX_2207XX.pdf | 40 | tradeloom_data/HVAC Data Sources/SRM_M_UNIHIF_0_XXXX_2207XX.pdf | Outdoor Unit 13
Panel Plate D30(Rounded grille 2) |
|
40 | SRM_M_UNIHIF_0_XXXX_2207XX.pdf | 41 | tradeloom_data/HVAC Data Sources/SRM_M_UNIHIF_0_XXXX_2207XX.pdf | Outdoor Unit 14
Panel Plate D30(Square grille)
|
|
41 | SRM_M_UNIHIF_0_XXXX_2207XX.pdf | 42 | tradeloom_data/HVAC Data Sources/SRM_M_UNIHIF_0_XXXX_2207XX.pdf | Outdoor Unit 15
Panel Plate X630(Square grille) |
|
42 | SRM_M_UNIHIF_0_XXXX_2207XX.pdf | 43 | tradeloom_data/HVAC Data Sources/SRM_M_UNIHIF_0_XXXX_2207XX.pdf | Outdoor Unit 16
Panel Plate E30(Square grille) |
|
43 | SRM_M_UNIHIF_0_XXXX_2207XX.pdf | 44 | tradeloom_data/HVAC Data Sources/SRM_M_UNIHIF_0_XXXX_2207XX.pdf | Outdoor Unit 17
Panel Plate E30(Rounded grille 1) |
|
44 | SRM_M_UNIHIF_0_XXXX_2207XX.pdf | 45 | tradeloom_data/HVAC Data Sources/SRM_M_UNIHIF_0_XXXX_2207XX.pdf | Outdoor Unit 18
Panel Plate E30(Rounded grille 2) |
|
45 | SRM_M_UNIHIF_0_XXXX_2207XX.pdf | 46 | tradeloom_data/HVAC Data Sources/SRM_M_UNIHIF_0_XXXX_2207XX.pdf | Outdoor Unit 19
2. Service Place |
|
46 | SRM_M_UNIHIF_0_XXXX_2207XX.pdf | 47 | tradeloom_data/HVAC Data Sources/SRM_M_UNIHIF_0_XXXX_2207XX.pdf | Outdoor Unit 20
3. Capacity Correction Factor for Height Difference
Capacity(Btu/h) 6k~9k Pipe Length (m/ft)
Cooling 7.5/24.6 10/32.8 20/65.6 25/82
Height difference
H (m)
Indoor Upper
than Outdoor
10/32.8 0.969 0.936 0.920
5/16.4 0.995 0.979 0.946 0.929
0 1.000 0.984 0.951 0.934
Outdoor Upper
than Indoor
-5/-16.4 1.000 0.984 0.951 0.934
-10/-32.8 0.984 0.951 0.934
Heating 7.5/24.6 10/32.8 20/65.6 25/82
Height difference
H (m)
Indoor Upper
than Outdoor
10/32.8 0.989 0.967 0.956
5/16.4 1.000 0.989 0.967 0.956
0 1.000 0.989 0.967 0.956
Outdoor Upper
than Indoor
-5/-16.4 0.992 0.981 0.959 0.948
-10/-32.8 0.973 0.952 0.941
Capacity(Btu/h) 12k Pipe Length (m/ft)
Cooling 7.5/24.6 10/32.8 20/65.6 25/82
Height difference
H (m)
Indoor Upper
than Outdoor
10/32.8 0.974 0.953 0.942
5/16.4 0.995 0.984 0.962 0.951
0 1.000 0.989 0.967 0.956
Outdoor Upper
than Indoor
-5/-16.4 1.000 0.989 0.967 0.956
-10/-32.8 0.989 0.967 0.956
Heating 7.5/24.6 10/32.8 20/65.6 25/82
Height difference
H (m)
Indoor Upper
than Outdoor
10/32.8 0.994 0.981 0.974
5/16.4 1.000 0.994 0.981 0.974
0 1.000 0.994 0.981 0.974
Outdoor Upper
than Indoor
-5/-16.4 0.992 0.986 0.973 0.966
-10/-32.8 0.978 0.965 0.958
Capacity(Btu/h) 18k Pipe Length (m/ft)
Cooling 7.5/24.6 10/32.8 20/65.6 30/98.4
Height difference
H (m)
Indoor Upper
than Outdoor
20/65.6 0.941 0.919
10/32.8 0.974 0.951 0.928
5/16.4 0.995 0.983 0.960 0.937
0 1.000 0.988 0.965 0.942
Outdoor Upper
than Indoor
-5/-16.4 1.000 0.988 0.965 0.942
-10/-32.8 0.988 0.965 0.942
-20/-65.6 0.965 0.942 |
|
47 | SRM_M_UNIHIF_0_XXXX_2207XX.pdf | 48 | tradeloom_data/HVAC Data Sources/SRM_M_UNIHIF_0_XXXX_2207XX.pdf | Outdoor Unit 21
Capacity(Btu/h) 18k Pipe Length (m/ft)
Heating 7.5/24.6 10/32.8 20/65.6 30/98.4
Height difference
H (m)
Indoor Upper
than Outdoor
20/65.6 0.987 0.978
10/32.8 0.996 0.987 0.978
5/16.4 1.000 0.996 0.987 0.978
0 1.000 0.996 0.987 0.978
Outdoor Upper
than Indoor
-5/-16.4 0.992 0.988 0.979 0.970
-10/-32.8 0.980 0.971 0.962
-20/-65.6 0.963 0.955
Capacity
(Btu/h) 24k Pipe Length (m/ft)
Cooling 7.5/24.6 10/32.8 20/65.6 30/98.4 40/131.2 50/164
Height difference
H (m)
Indoor Upper
than Outdoor
25/82 0.917 0.898 0.879
20/65.6 0.946 0.926 0.907 0.887
10/32.8 0.975 0.955 0.936 0.916 0.896
5/16.4 0.995 0.985 0.965 0.945 0.925 0.905
0 1.000 0.990 0.970 0.950 0.930 0.910
Outdoor Upper
than Indoor
-5/-16.4 1.000 0.990 0.970 0.950 0.930 0.910
-10/-
32.8 0.990 0.970 0.950 0.930 0.910
-20/-
65.6 0.970 0.950 0.930 0.910
-25/-82 0.950 0.930 0.910
Heating 7.5/24.6 10/32.8 20/65.6 30/98.4 40/131.2 50/164
Height
difference
H (m)
Indoor Upper
than Outdoor
25/82 0.984 0.978 0.972
20/65.6 0.991 0.984 0.978 0.972
10/32.8 0.997 0.991 0.984 0.978 0.972
5/16.4 1.000 0.997 0.991 0.984 0.978 0.972
0 1.000 0.997 0.991 0.984 0.978 0.972
Outdoor Upper
than Indoor
-5/-16.4 0.992 0.989 0.983 0.977 0.970 0.964
-10/-
32.8 0.981 0.975 0.969 0.963 0.957
-20/-
65.6 0.967 0.961 0.955 0.949
-25/-82 0.953 0.947 0.941 |
|
48 | SRM_M_UNIHIF_0_XXXX_2207XX.pdf | 49 | tradeloom_data/HVAC Data Sources/SRM_M_UNIHIF_0_XXXX_2207XX.pdf | Outdoor Unit 22
Capacity
(Btu/h)
30k Pipe Length (m/ft)
Cooling 7.5/24.6 10/32.8 20/65.6 30/98.4 40/131.2 50/164
Height
difference
H (m)
Indoor Upper
than Outdoor
25/82 0.891 0.862 0.832
20/65.6 0.930 0.900 0.871 0.841
10/32.8 0.970 0.940 0.910 0.879 0.849
5/16.4 0.995 0.980 0.949 0.919 0.888 0.858
0 1.000 0.985 0.954 0.923 0.893 0.862
Outdoor Upper
than Indoor
-5/-16.4 1.000 0.985 0.954 0.923 0.893 0.862
-10/-32.8 0.985 0.954 0.923 0.893 0.862
-20/-65.6 0.954 0.923 0.893 0.862
-25/-82 0.923 0.893 0.862
Heating 7.5/24.6 10/32.8 20/65.6 30/98.4 40/131.2 50/164
Height
difference
H (m)
Indoor Upper
than Outdoor
25/82 0.961 0.945 0.929
20/65.6 0.976 0.961 0.945 0.929
10/32.8 0.992 0.976 0.961 0.945 0.929
5/16.4 1.000 0.992 0.976 0.961 0.945 0.929
0 1.000 0.992 0.976 0.961 0.945 0.929
Outdoor Upper
than Indoor
-5/-16.4 0.992 0.984 0.969 0.953 0.937 0.922
-10/-32.8 0.976 0.961 0.945 0.930 0.914
-20/-65.6 0.953 0.938 0.922 0.907
-25/-82 0.930 0.915 0.900 |
|
49 | SRM_M_UNIHIF_0_XXXX_2207XX.pdf | 50 | tradeloom_data/HVAC Data Sources/SRM_M_UNIHIF_0_XXXX_2207XX.pdf | Outdoor Unit 23
Capacity
(Btu/h) 36k Pipe Length (m/ft)
Cooling 7.5/24.6 15/49.2 25/82 35/114.8 50/164 65/213.3
Height
difference
H (m)
Indoor Upper
than Outdoor
30/98.4 0.889 0.850 0.812
20/65.6 0.924 0.898 0.859 0.820
10/32.8 0.959 0.933 0.907 0.868 0.828
5/16.4 0.995 0.969 0.942 0.916 0.876 0.837
0 1.000 0.974 0.947 0.921 0.881 0.841
Outdoor Upper
than Indoor
-5/-16.4 1.000 0.974 0.947 0.921 0.881 0.841
-10/-32.8 0.974 0.947 0.921 0.881 0.841
-20/-65.6 0.947 0.921 0.881 0.841
-30/-98.4 0.921 0.881 0.841
Heating 7.5/24.6 15/49.2 25/82 35/114.8 50/164 65/213.3
Height
difference
H (m)
Indoor Upper
than Outdoor
30/98.4 0.964 0.945 0.927
20/65.6 0.976 0.964 0.945 0.927
10/32.8 0.988 0.976 0.964 0.945 0.927
5/16.4 1.000 0.988 0.976 0.964 0.945 0.927
0 1.000 0.988 0.976 0.964 0.945 0.927
Outdoor Upper
than Indoor
-5/-16.4 0.992 0.980 0.968 0.956 0.938 0.920
-10/-32.8 0.972 0.960 0.948 0.930 0.912
-20/-65.6 0.952 0.941 0.923 0.905
-30/-98.4 0.933 0.915 0.898 |
|
50 | SRM_M_UNIHIF_0_XXXX_2207XX.pdf | 51 | tradeloom_data/HVAC Data Sources/SRM_M_UNIHIF_0_XXXX_2207XX.pdf | Outdoor Unit 24
Capacity
(Btu/h) 48k Pipe Length (m/ft)
Cooling 7.5/24.6 15/49.2 25/82 35/114.8 50/164 65/213.3
Height
difference
H (m)
Indoor Upper
than Outdoor
30/98.4 0.884 0.843 0.802
20/65.6 0.920 0.893 0.852 0.810
10/32.8 0.957 0.930 0.902 0.860 0.819
5/16.4 0.995 0.967 0.939 0.911 0.869 0.827
0 1.000 0.972 0.944 0.916 0.873 0.831
Outdoor Upper
than Indoor
-5/-16.4 1.000 0.972 0.944 0.916 0.873 0.831
-10/-32.8 0.972 0.944 0.916 0.873 0.831
-20/-65.6 0.944 0.916 0.873 0.831
-30/-98.4 0.916 0.873 0.831
Heating 7.5/24.6 15/49.2 25/82 35/114.8 50/164 65/213.3
Height
difference
H (m)
Indoor Upper
than Outdoor
30/98.4 0.958 0.936 0.915
20/65.6 0.972 0.958 0.936 0.915
10/32.8 0.986 0.972 0.958 0.936 0.915
5/16.4 1.000 0.986 0.972 0.958 0.936 0.915
0 1.000 0.986 0.972 0.958 0.936 0.915
Outdoor Upper
than Indoor
-5/-16.4 0.992 0.978 0.964 0.950 0.929 0.908
-10/-32.8 0.970 0.956 0.942 0.921 0.900
-20/-65.6 0.949 0.935 0.914 0.893
-30/-98.4 0.927 0.907 0.886 |
|
51 | SRM_M_UNIHIF_0_XXXX_2207XX.pdf | 52 | tradeloom_data/HVAC Data Sources/SRM_M_UNIHIF_0_XXXX_2207XX.pdf | Outdoor Unit 25
Capacity
(Btu/h) 60k Pipe Length (m/ft)
Cooling 7.5/24.6 15/49.2 25/82 35/114.8 50/164 65/213.3
Height
difference
H (m)
Indoor Upper
than Outdoor
30/98.4 0.870 0.823 0.775
20/65.6 0.911 0.879 0.831 0.783
10/32.8 0.953 0.920 0.888 0.840 0.791
5/16.4 0.995 0.962 0.930 0.897 0.848 0.799
0 1.000 0.967 0.934 0.902 0.852 0.803
Outdoor Upper
than Indoor
-5/-16.4 1.000 0.967 0.934 0.902 0.852 0.803
-10/-32.8 0.967 0.934 0.902 0.852 0.803
-20/-65.6 0.934 0.902 0.852 0.803
-30/-98.4 0.902 0.852 0.803
Heating 7.5/24.6 15/49.2 25/82 35/114.8 50/164 65/213.3
Height
difference
H (m)
Indoor Upper
than Outdoor
30/98.4 0.955 0.932 0.909
20/65.6 0.970 0.955 0.932 0.909
10/32.8 0.985 0.970 0.955 0.932 0.909
5/16.4 1.000 0.985 0.970 0.955 0.932 0.909
0 1.000 0.985 0.970 0.955 0.932 0.909
Outdoor Upper
than Indoor
-5/-16.4 0.992 0.977 0.962 0.947 0.924 0.902
-10/-32.8 0.969 0.954 0.939 0.917 0.895
-20/-65.6 0.947 0.932 0.910 0.887
-30/-98.4 0.924 0.902 0.880 |
|
52 | SRM_M_UNIHIF_0_XXXX_2207XX.pdf | 53 | tradeloom_data/HVAC Data Sources/SRM_M_UNIHIF_0_XXXX_2207XX.pdf | Outdoor Unit 25
4. Noise Criterion Curves
Note: H= 0.5 × height of outdoor unit
Notes:
-Sound measured at 1.0m away from the center of the unit.
-Data is valid at free field condition
-Data is valid at nominal operation condition
-Reference acoustic pressure OdB=20µPa
-Sound level will vary depending on arrange off actors such as the construction (acoustic absorption coefficient) of particular
room in which the equipment is installed.
-The operating conditions are assumed to be standard. |
|
53 | SRM_M_UNIHIF_0_XXXX_2207XX.pdf | 54 | tradeloom_data/HVAC Data Sources/SRM_M_UNIHIF_0_XXXX_2207XX.pdf | Outdoor Unit 26
MOX230-12HFN1-MV5W MOX330-12HFN1-MW5W
MOX430-17HFN1-MT0W MOX430-18HFN1-MU0W
|
|
54 | SRM_M_UNIHIF_0_XXXX_2207XX.pdf | 55 | tradeloom_data/HVAC Data Sources/SRM_M_UNIHIF_0_XXXX_2207XX.pdf | Outdoor Unit 27
5. Refrigerant Cycle Diagrams
Model
Pipe Size (Diameter:ø)
mm(inch) Piping length (m/ft) Elevation (m/ft)
Additional Refrigerant
Gas Liquid Rated Max. Rated Max.
MOX230-12HFN1-MV5W
12.7(1/2) 6.35(1/4) 7.5/24.6 25/82 0 10/32.8 15g/m (0.16oz/ft)
MOX330-12HFN1-MW5W |
|
55 | SRM_M_UNIHIF_0_XXXX_2207XX.pdf | 56 | tradeloom_data/HVAC Data Sources/SRM_M_UNIHIF_0_XXXX_2207XX.pdf | Outdoor Unit 28
Model
Pipe Size (Diameter:ø)
mm(inch) Piping length (m/ft) Elevation (m/ft)
Additional Refrigerant
Gas Liquid Rated Max. Rated Max.
MOX430-18HFN1-MU0W
12.7(1/2) 6.35(1/4) 7.5/24.6 30/98.4 0 20/65.6 15g/m (0.16oz/ft)
MOX430-17HFN1-MT0W
|
|
56 | SRM_M_UNIHIF_0_XXXX_2207XX.pdf | 57 | tradeloom_data/HVAC Data Sources/SRM_M_UNIHIF_0_XXXX_2207XX.pdf | Outdoor Unit 29
4. Electrical Wiring Diagrams
ODU Model ODU Wiring Diagram
MOX230-12HFN1-MV5W
16022000035853
MOX330-12HFN1-MW5W
MOX430-18HFN1-MU0W
16022000035849
MOX430-17HFN1-MT0W
ODU Model ODU Main Printed Circuit Board
MOX230-12HFN1-MV5W
17122000048121
MOX330-12HFN1-MW5W
MOX430-18HFN1-MU0W 17122000048066
MOX430-17HFN1-MT0W 17122000041117 |
|
57 | SRM_M_UNIHIF_0_XXXX_2207XX.pdf | 58 | tradeloom_data/HVAC Data Sources/SRM_M_UNIHIF_0_XXXX_2207XX.pdf | ||
58 | SRM_M_UNIHIF_0_XXXX_2207XX.pdf | 59 | tradeloom_data/HVAC Data Sources/SRM_M_UNIHIF_0_XXXX_2207XX.pdf | ||
59 | SRM_M_UNIHIF_0_XXXX_2207XX.pdf | 60 | tradeloom_data/HVAC Data Sources/SRM_M_UNIHIF_0_XXXX_2207XX.pdf | Outdoor unit printed circuit board diagram: 17122000044714, 17122000048121,17122000046453
|
|
60 | SRM_M_UNIHIF_0_XXXX_2207XX.pdf | 61 | tradeloom_data/HVAC Data Sources/SRM_M_UNIHIF_0_XXXX_2207XX.pdf | No. Name CN# Meaning
1 CN1A
CN3 Earth: connect to Ground
CN1 N_in: connect to N-line (208-230V AC input)
CN2 L_in: connect to L-line (208-230V AC input)
CN16 S: connect to indoor unit communication
2 HEAT1 CN17 connect to compressor heater, 208-230V AC when is ON
3 4-WAY CN60 connect to 4 way valve, 208-230V AC when is ON.
4 HEAT2 CN15 connect to chassis heater, 208-230V AC when is ON
5 AC-FAN CN25 connect to AC fan
6 PMV CN31 connect to Electric Expansion Valve
7 TESTPORT CN6 used for testing
8 TP T4 T3 CN21/CN22 connect to pipe temp. sensor T3, ambient temp. sensor T4, exhaust
temp. sensor TP
9 DC-FAN CN7 connect to DC fan
10 FAN_IPM IPM 501 IPM for DC fan
11
W CN28 connect to compressor
V CN29 0V AC (standby)
U CN30 10-200V AC (running)
12 COMP_IPM IPM 301 IPM for compressor
Note: This section is for reference only. Please take practicality as standard. |
|
61 | SRM_M_UNIHIF_0_XXXX_2207XX.pdf | 62 | tradeloom_data/HVAC Data Sources/SRM_M_UNIHIF_0_XXXX_2207XX.pdf | Outdoor unit printed circuit board diagram: 17122000048064& 17122000048066
5V
T3 T4 TP
1
TESTPORT
1
T20 A
1
+
+
DC-FAN
DR
DR
MCUEE
N
N
N
[1.4] 2019-10-15
7805
S N-INL-IN
K FR-72W/BP3-(RX24Tmini+6A 161+PSS30S92F6-AG+6822+LMSR).D.13.WP2-1
BLACK
RED
15V
5V
PMV
BL UE
Earth
HEAT2
HEA T1
4- W AYAC-FAN
+
1
P
T30A/250VAC
17122000048064
+
D 401
C2 09
+
E201
L2 01
CN1 9
+ D8 01
L4L3
C1 0
C9
C412
C407
IC4 01
R4 02
+E4 01
C4 02
C4 01
R401
+
D4 02
R403
C 403
L 403
L4 02
L401
R626
+
DZ301
C N21
CN23
ZR 2
ZR1
C N5 05
FUS E1
L1
C8 03
D102
IC101
C 211
DR22
DR21
CN15
CN14
CN6_ 1
C3 05
C31 4
C 315
R 611
R61 5
ZR3
R6 09
R5 28
R51 6
R51 5
R 512
R5 06
R 504
R5 02
R4 04
R31 5
R31 4
R31 3R30 7
R3 05
R3 04
R 228
R2 27
R 226
R2 22
R2 21
R2 13
R2 12
R2 11R210
R2 09
R 208
R 207
R2 05
R2 03
R 201
R1
+
E501
+
+
DZ5 01
D103
CN 18
C8
C61 4
C 608
C6 07
C60 6
C 520
C 516
C 514
C51 2
C5 11
C51 0
C50 1
C41 5
C410
C3 10
C2 05
C2 04
C2 03
C 115
C1 06
C6
C2
C615
R 508
IPM501
R525
C515
R5 11
R5 10
R50 9
R5 07
R50 5
C 508
C5 07
C 503
C5 19
C518
C 517
+E502
+
E503
+
E504
R 407
R40 8
R42 1
IC4 05
R6 05
VP1CIN
V NC
NU
NW
NV
V-
W-FO
VWB
VVB
U-
W+
V
V+
W
U+
VU B
P
U
VP1
VN 1
IPM1
L601
R41 2
IC403
+
E409
+
E404
D407
C4 09
C413
CN7
CN 6
CN2 CN8
CN 29 CN 28 CN2 7
RY1 L6 L5
DAS1
R601
R301
+
-
AC
OUT
IN
~
~
RY3A
C3
C1
R62 5
R6 23
R 622
R 514
R5 13
C6 11
T1
CN 60
IC202
R1 04
R6 03
C202
R1 03
-+ AC AC
BR1
C8 01C8 02
C1 03
C1 04
C1 05
C 212
C1 14
C1 16
C 208
C20 7
C2 06
C1 11
C 112
C 304
C3 09
C 317
C12
C4 04
C4 05
C4 08
C60 1
C60 5
C60 4
C 612
C 613
D 603
+
DZ30 4
+
DZ30 3
+
DZ 30 2
+
DZ601
E601
IC801
I C8 02
IC2 03
IC4 04
Q80 1
R 804
R1 05
R1 10
R1 11
R22 5
R 215
R8 06
R80 5
R 809
R8 10
R8 08
R 807
R2 24
R2 17
R2 23
R2 16
R22 0
R 219R2 18
R2 02
R20 6
R 106
R1 07
R 302
R4 06
R4 05
R6 07
R 602
R6 04
R61 4
R 608
R6 10
R61 2
R61 6
R6 17
R6 18
R6 19
R 620
R 621
+
D 404
R2 04
C31 6
C 307
C30 8
C3 13C31 2
C 311
R3 10
R3 06
R 308
R3 09
R 312
R3 11
R4 26
C3 18
C3 19
C5 13
R 317
R 316
R 318
R3 19
R3 20
R6 24
+
E301
+
E302
+
E304
+
E303
C201
C3 01
C3 02
C3 03
+
D6 02
IC201
C 603
R60 6
R109
R C1
RC 2
RY3
RY2
R10 8
+
D403
PTC1
+
E2
RY4
C5 09
+D8 02
CN16
RY5
+
E1
R61 3
EC
G
Q601
R 801
R8 02
+
LED 101
1
3
OSC1 01
CN17
R8 03
C4
CN5
C6 10
+
D6 05
IC6 02
IC601
D6 04
C5
A
D601
C6 09
C10 1
+
E405
C7
CN4 14
+
E6 02
C 804
+E202
+E203
+
E204
R5 03
R 119
D1 01
R2 14
R1 01
R10 2
C 210
C 109
C1 10
C1 07
C 102
C 108
E60 3
R3 21
1
CN 506
IC6 03
13
14
12
12345679 81011 |
|
62 | SRM_M_UNIHIF_0_XXXX_2207XX.pdf | 63 | tradeloom_data/HVAC Data Sources/SRM_M_UNIHIF_0_XXXX_2207XX.pdf | No. Name CN# Meaning
1 Power Supply
CN6 Earth: connect to Ground
CN7 N_in: connect to N-line (208-230V AC input)
CN8 L_in: connect to L-line (208-230V AC input)
2 S CN2 S: connect to indoor unit communication
3 4-WAY CN60 connect to 4 way valve, 208-230V AC when is ON.
4 AC-FAN CN5 connect to AC fan
5 HEAT2 CN19 connect to chassis heater, 208-230V AC when is ON
6 TP T4 T3 CN17 connect to pipe temp. sensor T3, ambient temp. sensor T4, exhaust
temp. sensor TP
7 PMV CN18 connect to Electric Expansion Valve
8 HEAT1 CN16 connect to compressor heater, 208-230V AC when is ON
9 DC-FAN CN414 connect to DC fan
10 TESTPORT CN23 used for testing
11 FAN_IPM IPM501 IPM for DC fan
12 COMP_IPM IPM1 IPM for compressor
13
U CN27 connect to compressor
V CN28 0V AC (standby)
W CN29 200-300V AC (running)
14 EE_PORT CN505 EEPROM programer port
Note: This section is for reference only. Please take practicality as standard. |
|
63 | SRM_M_UNIHIF_0_XXXX_2207XX.pdf | 64 | tradeloom_data/HVAC Data Sources/SRM_M_UNIHIF_0_XXXX_2207XX.pdf | Outdoor unit printed circuit board diagram: 17122000041117, 17122000034170
|
|
64 | SRM_M_UNIHIF_0_XXXX_2207XX.pdf | 65 | tradeloom_data/HVAC Data Sources/SRM_M_UNIHIF_0_XXXX_2207XX.pdf | No. Name CN# Meaning
1 Power Supply
CN6 Earth: connect to Ground
CN7 N_in: connect to N-line (208-230V AC input)
CN8 L_in: connect to L-line (208-230V AC input)
2 S CN2 S: connect to indoor unit communication
3 4-WAY CN60 connect to 4 way valve, 208-230V AC when is ON.
4 HEAT1 CN16 connect to compressor heater, 208-230V AC when is ON
5 AC-FAN CN5 connect to AC fan
6 HEAT2 CN19 connect to chassis heater, 208-230V AC when is ON
7 PMV CN18 connect to Electric Expansion Valve
8 TP T4 T3 CN17 connect to pipe temp. sensor T3, ambient temp. sensor T4, exhaust
temp. sensor TP
9 DC-FAN CN41 connect to DC fan
10 TESTPORT CN23 used for testing
11 FAN_IPM IPM2 IPM for DC fan
12 EE_PORT CN505 EEPROM programer port
13
U CN27 connect to compressor
V CN28 0V AC (standby)
W CN29 200-300V AC (running)
14 COMP_IPM IPM1 IPM for compressor
Note: This section is for reference only. Please take practicality as standard. |
|
65 | SRM_M_UNIHIF_0_XXXX_2207XX.pdf | 66 | tradeloom_data/HVAC Data Sources/SRM_M_UNIHIF_0_XXXX_2207XX.pdf | Contents
1. Installation Overview
2. Location Selection
3. Indoor Unit Installation
4. Outdoor Unit Installation
5. Drainage Pipe Installation
6. Refrigerant Pipe Installation
7. Vacuum Drying and Leakage Checking
8. Additional Refrigerant Charge
9. Engineering of Insulation
10. Engineering of Electrical Wiring
11 Test Operation
Installation |
|
66 | SRM_M_UNIHIF_0_XXXX_2207XX.pdf | 67 | tradeloom_data/HVAC Data Sources/SRM_M_UNIHIF_0_XXXX_2207XX.pdf | 1. Installation Overview
1. Installation Overview
LN
1 2 3
MC MC
456
7 8
Install the indoor unit Install the outdoor unit Install the drainpipe
Connect the wires Connect the refrigerant pipes Evacuate the refrigeration system
Install the panel
(only for cassette type)
Perform a test run
Indoor Unit
Indoor Unit |
|
67 | SRM_M_UNIHIF_0_XXXX_2207XX.pdf | 68 | tradeloom_data/HVAC Data Sources/SRM_M_UNIHIF_0_XXXX_2207XX.pdf | 2. Location selection
2. Location selection
2.1 Unit location selection can refer to
installation manual.
2.2 DO NOT install the unit in the following
locations:
• Where oil drilling or fracking is taking place.
• Coastal areas with high salt content in the air.
• Areas with caustic gases in the air, such as near hot
springs.
• Areas with power fluctuations, such as factories.
• Enclosed spaces, such as cabinets.
• Areas with strong electromagnetic waves.
• Areas that store flammable materials or gas.
• Rooms with high humidity, such as bathrooms or
laundry rooms.
• If possible, DO NOT install the unit where it is ex-
posed to direct sunlight.
2.3 Rows of series installation
The relations between H, A and L are as follows.
L A
L ≤ H
L ≤ 1/2H 25 cm / 9.8” or
more
1/2H < L ≤ H 30 cm / 11.8” or
more
L > H Can not be installed
L
H
300 cm / 118” or more
A
60 cm / 23.6”
or more
150 cm / 59”
or more
25 cm / 9.8”
or more
25 cm / 9.8”
or more
DO NOT install the rows of series like following figure.
2.4 If the unit is exposed to heavy wind:
• Install unit so that air outlet fan is at a 90° angle to
the direction of the wind. If needed, build a barrier
in front of the unit to protect it from extremely heavy
winds.
Strong
wind
Strong wind
Strong wind
Wind Baffle
2.5 If the unit is frequently exposed to
heavy rain or snow:
Build a shelter above the unit to protect it from the rain or
snow. Be careful not to obstruct air flow around the unit.
Shelter
2.6 If the unit is frequently exposed to salty
air (seaside):
Use outdoor unit that is specially designed to resist
corrosion. |
|
68 | SRM_M_UNIHIF_0_XXXX_2207XX.pdf | 69 | tradeloom_data/HVAC Data Sources/SRM_M_UNIHIF_0_XXXX_2207XX.pdf | 3. IDU Installation-New Console
3. Indoor Unit Installation(New
Console)
3.1 Service space for indoor unit
≥NN
≥NN
NN≥
NN≥
3.2 Installing the main body
1. After loosening the screws, remove the mounting plate
from the unit.
3FNPWFUIFNPVOUJOHQMBUF
-PPTFOUIFTDSFXT 0OMZGPSMFGUPVUMFUQJQF
-PPTFOUIFTDSFX
NOTE: If the pipe comes out on the left, it is necessary to
loosen the screws on the bottom mounting
plate. If the pipe comes out in other directions, it is not
necessary.
2. Fix the mounting plate with a tapping screw onto the
wall.
NOTE: It is recommended to fx it on the wall according to
the hanging hole indicated by the arrow on the mounting
plate. Mounting plate must be installed horizontally.
.PVOUJOHQMBUF
5BQQJOH
TDSFX
8BTIFS
˘NN
3. Hang the indoor unit on the mounting plate.
(The bottom of body can touch the floor or remain sus-
pended, but the body must be installed vertically.)
NOTE: After installation, the unit shall be kept
horizontal without tilting.
4.Bottom mounting plate installation
• Installation without skirting
The bottom mounting plate is fixed directly to the wall. |
|
69 | SRM_M_UNIHIF_0_XXXX_2207XX.pdf | 70 | tradeloom_data/HVAC Data Sources/SRM_M_UNIHIF_0_XXXX_2207XX.pdf | 3. IDU Installation-New Console
1PXFSDPSE%SBJOQJQF
3FGSJHFSBOUQJQF
NOTE: In order to drain smoothly, the position of the drain
pipe must refer to the above figure when discharging the
right pipe.
• Installation with skirting line
,OPDLTUSBJHIU
3.3 Taking the indoor unit apart to connect
the pipe
1. Open the bottom piping cover plate
Press and hold the bottom two buckles, and then rotate to
open the piping cover plate.
5XPCVDLMFT
2. Remove the cover plate.
Remove the pipe cover plate and install the internal and
external connecting pipes.
NOTE: Install small-size piping first, and then large-size
piping.
NOTE: All the figures in this manual are for demonstration
purposes only. The air conditioner you have purchased may
be slightly different in design, though similar in shape. |
|
70 | SRM_M_UNIHIF_0_XXXX_2207XX.pdf | 71 | tradeloom_data/HVAC Data Sources/SRM_M_UNIHIF_0_XXXX_2207XX.pdf | 4. Outdoor unit installation
4. Outdoor unit installation
4.1 Service space for outdoor unit
4.2 Install drain joint(Heat pump unit only)
Before bolting the outdoor unit in place, you must install
the drain joint at the bottom of the unit.
Note that there are two different types of drain joints
depending on the type of outdoor unit.
If the drain joint comes with a rubber seal(see Fig. A ), do
the following:
1. Fit the rubber seal on the end of the drain joint that will
connect to the outdoor unit.
2. Insert the drain joint into the hole in the base pan of the
unit.
3. Rotate the drain joint 90° until it clicks in place facing
the front of the unit. For some panel plates, you need
to use tool.
4. Connect a drain hose extension (not included) to the
drain joint to redirect water from the unit during heating
mode.
If the drain joint doesn’t come with a rubber seal (see Fig.
B ), do the following:
1. Insert the drain joint into the hole in the base pan of
the unit. The drain joint will click in place.
2. Connect a drain hose extension (not included) to the
drain joint to redirect water from the unit during heating
mode.
4.3 Bolt pitch
Panel Plate Unit D A B C
X2
mm 303 452 286 314
inch 11.93 17.80 11.26 12.36
X3
mm 330 511 317 346
inch 12.99 20.12 12.48 13.62
X4
mm 342 663 354 394
inch 13.46 26.1 13.94 15.5
X6
mm 375 615 397 440
inch 14.76 24.2 15.6 17.3
D30
mm 410 673 403 455
inch 16.14 26.50 15.87 17.9
E30
mm 415 634 404 457
inch 16.34 24.96 15.9 17.99
590
mm 350 590 378 400
inch 13.78 23.23 14.88 15.75
|
|
71 | SRM_M_UNIHIF_0_XXXX_2207XX.pdf | 72 | tradeloom_data/HVAC Data Sources/SRM_M_UNIHIF_0_XXXX_2207XX.pdf | 4. Outdoor unit installation
4.4 Install Outdoor Unit
Fix the outdoor unit with anchor bolts(M10)
>60cm / 23.6”
Fix with bolts
Caution
Since the gravity center of the unit is not at its physical
center, so please be careful when lifting it with a sling.
Never hold the inlet of the outdoor unit to prevent it from
deforming.
Do not touch the fan with hands or other objects.
Do not lean it more than 45, and do not lay it sidelong.
Make concrete foundation according to the specifications
of the outdoor units.
Fasten the feet of this unit with bolts firmly to prevent it
from collapsing in case of earthquake or strong wind. |
|
72 | SRM_M_UNIHIF_0_XXXX_2207XX.pdf | 73 | tradeloom_data/HVAC Data Sources/SRM_M_UNIHIF_0_XXXX_2207XX.pdf | 5. Drainage Pipe Installation
5. Drainage Pipe Installation
Install the drainage pipe as shown below and take
measures against condensation. Improperly installation
could lead to leakage and eventually wet furniture and
belongings.
5.1 Installation principle
• Ensure at least 1/100 slope of the drainage pipe
• Adopt suitable pipe diameter
• Adopt nearby condensate water discharge
5.2 Key points of drainage water pipe
installation
1. Considering the pipeline route and elevation.
• Before installing condensate water pipeline, deter-
mine its route and elevation to avoid intersection
with other pipelines and ensure slope is straight.
2. Drainage pipe selection
• The drainage pipe diameter shall not small than the
drain hose of indoor unit
• According to the water flowrate and drainage pipe
slope to choose the suitable pipe, the water flow-
rate is decided by the capacity of indoor unit.
Relationship between water flowrate and capacity of
indoor unit
Capacity (kBtu/h) Water flowrate (l/h)
12 2.4
18 4
24 6
30 7
36 8
42 10
48 12
60 14
According to the above table to calculate the total water
flowrate for the confluence pipe selection.
For horizontal drainage pipe (The following table is for
reference)
PVC
pipe
Reference
value of inner
diameter of
pipe (mm)
Allowable
maximum water
flowrate (l/h) Remark
Slope
1/50
Slope
1/100
PVC25 20 39 27 For branch
pipePVC32 25 70 50
PVC40 31 125 88 Could be
used for
confluence
pipe
PVC50 40 247 175
PVC63 51 473 334
Attention: Adopt PVC40 or bigger pipe to be the main
pipe.
For Vertical drainage pipe (The following table is for
reference)
PVC
pipe
Reference
value of inner
diameter of
pipe (mm)
Allowable
maximum water
flowrate (l/h)
Remark
PVC25 20 220 For branch
pipePVC32 25 410
PVC40 31 730
Could be
used for
confluence
pipe
PVC50 40 1440
PVC63 51 2760
PVC75 67 5710
PVC90 77 8280
Attention: Adopt PVC40 or bigger pipe to be the main
pipe.
3. Individual design of drainage pipe system
• The drainage pipe of air conditioner shall be in-
stalled separately with other sewage pipe, rainwater
pipe and drainage pipe in building.
• The drainage pipe of the indoor unit with water
pump should be apart from the one without water
pump.
4. Supporter gap of drainage pipe
• In general, the supporter gap of the drain-
age pipe horizontal pipe and vertical pipe
is respectively 1m~1.5m/3.28ft~4.92ft and
1.5m~2.0m/4.92ft/6.56ft.
• Each vertical pipe shall be equipped with not less
than two hangers.
• Overlarge hanger gap for horizontal pipe shall cre-
ate bending, thus leading to air block.
5. The horizontal pipe layout should avoid converse flow or
bad flow |
|
73 | SRM_M_UNIHIF_0_XXXX_2207XX.pdf | 74 | tradeloom_data/HVAC Data Sources/SRM_M_UNIHIF_0_XXXX_2207XX.pdf | 5. Drainage Pipe Installation
• The correct installation will not cause converse
water flow and the slope of the branch pipes can be
adjusted freely
• The false installation will cause converse water flow
and the slope of the branch pipe can not be ad-
justed.
6. Water storage pipe setting
• If the indoor unit has high extra static pressure and
without water pump to elevate the condensate wa-
ter, such as high extra static pressure duct unit , the
water storage pipe should be set to avoid converse
flow or blow water phenomena.
7. Lifting pipe setting of indoor unit with water pump
• The length of lifting pipe should not exceed
750mm/29.5in or 1m/39.4in(for new 4-way cas-
sette);
The drainage pipe should be set down inclined after the
lifting pipe immediately to avoid wrong operation of water
level switch.
• Refer the following picture for installation reference.
B: Lift height<750mm or 1000mm
8. Blowhole setting
• For the concentrated drainage pipe system, there
should design a blowhole at the highest point of
main pipe to ensure the condensate water discharge
smoothly.
• The air outlet shall face down to prevent dirt enter-
ing pipe.
• Each indoor unit of the system should be installed it.
• The installation should be considering the conve-
nience for future cleaning.
9. The end of drainage pipe shall not contact with ground
directly.
5.3 Insulation work of drainage pipe
Refer the introduction to the insulation engineering
parts. |
|
74 | SRM_M_UNIHIF_0_XXXX_2207XX.pdf | 75 | tradeloom_data/HVAC Data Sources/SRM_M_UNIHIF_0_XXXX_2207XX.pdf | 6. Refrigerant Pipe Installation
6. Refrigerant Pipe Installation
6.1 Recommended copper pipe thickness
Pipe Diameter Thickness(mm/inch)
1/4" (6.35) 0.6/0.024
3/8" (9.52) 0.7/0.028
1/2" (12.7) 0.75/0.03
5/8" (15.9) 0.75/0.03
3/4" (19) 0.8/0.031
7/8" (22) 1/0.039
6.2 Maximum length and drop height
Ensure that the length of the refrigerant pipe, the number
of bends, and the drop height between the indoor and
outdoor units meets the requirements shown in the
following table.
Capacity(kBtu/h) Max. Length
(m/ft)
Max. Elevation
(m/ft)
<15 25/82 10/32.8
15-23 30/98.4 20/65.6
24~35 50/164 25/82
36~60 65/213.3 30/98.4
Caution:
1. The capacity test is based on the standard length and
the maximum permissive length is based on the system
reliability.
2. Oil traps
-If oil flows back into the outdoor unit’s compressor, this
might cause liquid compression or deterioration of oil
return. Oil traps in the rising gas piping can prevent this.
-An oil trap should be installed every 6m(20ft) of vertical
suction line riser (<36000Btu/h unit).
-An oil trap should be installed every 10m(32.8ft) of
vertical suction line riser (≥36000Btu/h unit).
10m/32.8ft (≥36000Btu/h unit)
6m/20ft (ġ36000Btu/h unit)
10m/32.8ft (≥36000Btu/h unit)
6m/20ft (ġ36000Btu/h unit)
Indoor unit/
Outdoor unit
Indoor unit/
Outdoor unit
6.3 The procedure of connecting pipes
1. Choose the pipe size according to the specification
table.
2. Confirm the cross way of the pipes.
3. Measure the necessary pipe length.
4. Cut the selected pipe with pipe cutter
• Make the section flat and smooth.
Oblique Rough Warpe d90°
5. Insulate the copper pipe
• Before test operation, the joint parts should not be
heat insulated.
6. Flare the pipe
• Insert a flare nut into the pipe before flaring the
pipe
• According to the following table to flare the pipe. |
|
75 | SRM_M_UNIHIF_0_XXXX_2207XX.pdf | 76 | tradeloom_data/HVAC Data Sources/SRM_M_UNIHIF_0_XXXX_2207XX.pdf | 6. Refrigerant Pipe Installation
7. Vacuum Drying and Leakage
Checking
7.1 Purpose of vacuum drying
• Eliminating moisture in system to prevent the phe-
nomena of ice-blockage and copper oxidation.
Ice-blockage shall cause abnormal operation of
system, while copper oxide shall damage
compressor.
• Eliminating the non-condensable gas (air) in system
to prevent the components oxidizing, pressure fluc-
tuation and bad heat exchange during the operation
of system.
7.2 Selection of vacuum pump
• The ultimate vacuum degree of vacuum pump shall
be -756mmHg or above.
• Precision of vacuum pump shall reach 0.02mmHg or
above.
7.3 Operation procedure for vacuum drying
Due to different construction environment, two kinds of
vacuum drying ways could be chosen, namely ordinary
vacuum drying and special vacuum drying.
7.3.1 Ordinary vacuum drying
1. When conduct first vacuum drying, connect pressure
gauge to the infusing mouth of gas pipe and liquid pipe,
and keep vacuum pump running for 1hour (vacuum
degree of vacuum pump shall be reached -755mmHg).
2. If the vacuum degree of vacuum pump could not reach
-755mmHg after 1 hour of drying, it indicates that there is
moisture or leakage in pipeline system and need to go on
with drying for half an hour.
3. If the vacuum degree of vacuum pump still could not
reach -755mmHg after 1.5 hours of drying, check whether
there is leakage source.
4 . Leakage test: After the vacuum degree reaches
-755mmHg, stop vacuum drying and keep the pressure for
1 hour. If the indicator of vacuum gauge does not go up,
it is qualified. If going up, it indicates that there is moisture
or leak source.
7.3.2 Special vacuum drying
The special vacuum drying method shall be adopted when:
1. Finding moisture during flushing refrigerant pipe.
2. Conducting construction on rainy day, because rain
water might penetrated into pipeline.
3. Construction period is long, and rain water might
penetrated into pipeline.
Pipe diameter
(inch(mm))
Flare dimension A (mm/inch)
Flare shape
Min Max
1/4" (6.35) 8.4/0.33 8.7/0.34
3_
¢
¢
"
3/8" (9.52) 13.2/0.52 13.5/0.53
1/2" (12.7) 16.2/0.64 16.5/0.65
5/8" (15.9) 19.2/0.76 19.7/0.78
3/4" (19) 23.2/0.91 23.7/0.93
7/8" (22) 26.4/1.04 26.9/1.06
• After flared the pipe, the opening part must be seal
by end cover or adhesive tape to avoid duct or exog-
enous impurity come into the pipe.
7. Drill holes if the pipes need to pass the wall.
8. According to the field condition to bend the pipes so
that it can pass the wall smoothly.
9. Bind and wrap the wire together with the insulated pipe
if necessary.
10. Set the wall conduit
11. Set the supporter for the pipe.
12. Locate the pipe and fix it by supporter
• For horizontal refrigerant pipe, the distance be-
tween supporters should not be exceed 1m.
• For vertical refrigerant pipe, the distance between
supporters should not be exceed 1.5m.
13. Connect the pipe to indoor unit and outdoor unit by
using two spanners.
• Be sure to use two spanners and proper torque to
fasten the nut, too large torque will damage the
bellmouthing, and too small torque may cause
leakage. Refer the following table for different pipe
connection.
Pipe Diameter
Torque
Sketch map
N.m(lb.ft)
1/4" (6.35) 18~20
(13.3~14.8)
3/8" (9.52) 32~39
(23.6~28.8)
1/2" (12.7) 49~59
(36.1~43.5)
5/8" (15.9) 57~71
(42~52.4)
3/4" (19) 67~101
(49.4~74.5)
7/8" (22) 85-110
(62.7-81.1) |
|
76 | SRM_M_UNIHIF_0_XXXX_2207XX.pdf | 77 | tradeloom_data/HVAC Data Sources/SRM_M_UNIHIF_0_XXXX_2207XX.pdf | 7. Vacuum Drying and Leakage Checking
4. Rain water might penetrate into pipeline during
construction.
Procedures of special vacuum drying are as follows:
1. Vacuum drying for 1 hour.
2. Vacuum damage, filling nitrogen to reach 0.5Kgf/cm2 .
Because nitrogen is dry gas, vacuum damage could
achieve the effect of vacuum drying, but this method
could not achieve drying thoroughly when there is too
much moisture. Therefore, special attention shall be drawn
to prevent the entering of water and the formation of
condensate water.
3. Vacuum drying again for half an hour.
If the pressure reached -755mmHg, start to pressure
leakage test. If it cannot reached the value, repeat vacuum
damage and vacuum drying again for 1 hour.
4. Leakage test: After the vacuum degree reaches
-755mmHg, stop vacuum drying and keep the pressure for
1 hour. If the indicator of vacuum gauge does not go up,
it is qualified. If going up, it indicates that there is moisture
or leak source.
8. Additional Refrigerant Charge
• After the vacuum drying process is carried out, the
additional refrigerant charge process need to be
performed.
• The outdoor unit is factory charged with refrigerant.
The additional refrigerant charge volume is decided
by the diameter and length of the liquid pipe be-
tween indoor and outdoor unit. Refer the following
formula to calculate the charge volume.
Diameter of liquid
pipe (mm(inch)) Formula
R410A(Throttling
part in the indoor
unit)
6.35(1/4) V=30(0.32)g/m(oz/ft)×(L-
standard pipe length)
9.52(3/8) V=65(0.69)g/m(oz/ft)×(L-
standard pipe length)
12.7(1/2) V=115(1.23)g/m(oz/ft)×(L-
standard pipe length)
R410A(Throttling
part in the
outdoor unit)
6.35(1/4) V=15(0.16)g/m(oz/ft)×(L-
standard pipe length)
9.52(3/8) V=30(0.32)g/m(oz/ft)×(L-
standard pipe length)
12.7(1/2) V=65(0.69)g/m(oz/ft)×(L-
standard pipe length)
R32
6.35(1/4) V=12(0.13)g/m(oz/ft)×(L-
standard pipe length)
9.52(3/8) V=24(0.26)g/m(oz/ft)×(L-
standard pipe length)
12.7(1/2) V=40(0.42)g/m(oz/ft)×(L-
standard pipe length)
V: Additional refrigerant charge volume.
L : The length of the liquid pipe.
Note:
• Refrigerant may only be charged after performed
the vacuum drying process.
• Always use gloves and glasses to protect your hands
and eyes during the charge work.
• Use electronic scale or fluid infusion apparatus to
weight refrigerant to be recharged. Be sure to avoid
extra refrigerant charged, it may cause liquid ham-
mer of the compressor or protections.
• Use supplementing flexible pipe to connect refriger-
ant cylinder, pressure gauge and outdoor unit. And
The refrigerant should be charged in liquid state.
Before recharging, The air in the flexible pipe and
manifold gauge should be exhausted.
• After finished refrigerant recharge process, check
whether there is refrigerant leakage at the connec-
tion joint part.(Using gas leakage detector or soap
water to detect). |
|
77 | SRM_M_UNIHIF_0_XXXX_2207XX.pdf | 78 | tradeloom_data/HVAC Data Sources/SRM_M_UNIHIF_0_XXXX_2207XX.pdf | 8. Additional Refrigerant Charge
• Be sure not bind the insulation material over-tight, it
may extrude out the air in the material to cause bad
insulation and cause easy aging of the material.
9.2 Insulation of drainage pipe
1. Operational procedure of refrigerant pipe
insulation
Select the suitable pipe → insulation (except joint section)
→ piping layout and connection→ drainage test→ insulate
the joint parts
2. Purpose of drainage pipe insulation
The temperature of condensate drainage water is very low.
If insulation is not enough, it shall form dew and cause
leakage to damage the house decoration.
3. Insulation material selection for drainage pipe
• The insulation material should be flame retardant
material, the flame retardancy of the material should
be selected according to the local law.
• Thickness of insulation layer is usually above
10mm/0.39in.
• Use specific glue to paste the seam of insulation ma-
terial, and then bind with adhesive tape. The width
of tape shall not be less than 5cm/1.97in. Make sure
it is firm and avoid dew.
4. Installation and highlights of insulation
construction
• The single pipe should be insulated before connect-
ing to another pipe, the joint part should be insu-
lated after the drainage test.
• There should be no insulation gap between the
insulation material.
9 . Engineering of Insulation
9.1 Insulation of refrigerant pipe
1. Operational procedure of refrigerant pipe
insulation
Cut the suitable pipe → insulation (except joint section) →
flare the pipe → piping layout and connection→ vacuum
drying → insulate the joint parts
2. Purpose of refrigerant pipe insulation
• During operation, temperature of gas pipe and
liquid pipe shall be over-heating or over-cooling
extremely. Therefore, it is necessary to carry out in-
sulation; otherwise it shall debase the performance
of unit and burn compressor.
• Gas pipe temperature is very low during cooling.
If insulation is not enough, it shall form dew and
cause leakage.
• Temperature of gas pipe is very high (generally
50-100°C/122-212°F) during heating. Insulation
work must be carried out to prevent hurt by care-
lessness touching.
3. Insulation material selection for refrigerant pipe
• The burning performance should over 120°C/248°F
• According to the local law to choose insulation
materials
• Recommended insulation casing thickness
Humidity<80%RH Humidity ≥80%RH
10mm/0.39in 15mm/0.59in
4. Installation highlights of insulation construction
• Gas pipe and liquid pipe shall be insulated sepa-
rately, if the gas pipe and liquid pipe were insulated
together; it will decrease the performance of air
conditioner.
• The insulation material at the joint pipe shall be
5~10cm/1.97~3.97in longer than the gap of the
insulation material.
• The insulation material at the joint pipe shall be
inserted into the gap of the insulation material.
• The insulation material at the joint pipe shall be
banded to the gap pipe and liquid pipe tightly.
• The linking part should be use glue to paste to-
gether |
|
78 | SRM_M_UNIHIF_0_XXXX_2207XX.pdf | 79 | tradeloom_data/HVAC Data Sources/SRM_M_UNIHIF_0_XXXX_2207XX.pdf | 10. Engineering of Electrical Wring
10. Engineering of Electrical Wring
1. Highlights of electrical wiring installation
• All field wiring construction should be finished by
qualified electrician.
• Air conditioning equipment should be grounded ac-
cording to the local electrical regulations.
• Current leakage protection switch should be in-
stalled.
• Do not connect the power wire to the terminal of
signal wire.
• When power wire is parallel with signal wire, put
wires to their own wire tube and remain at least
300mm/11.8in gap.
• According to table in indoor part named “the speci-
fication of the power” to choose the wiring, make
sure the selected wiring not small than the date
showing in the table.
• Select different colors for different wire according to
relevant regulations.
• Do not use metal wire tube at the place with acid or
alkali corrosion, adopt plastic wire tube to replace it.
• There must be not wire connect joint in the wire
tube If joint is a must, set a connection box at the
place.
• The wiring with different voltage should not be in
one wire tube.
• Ensure that the color of the wires of outdoor and
the terminal No. are same as those of indoor unit
respectively.
Table: Minimum Cross-Sectional Area able of Power and
Signal Cables
Rated Current of
Appliance (A) AWG
≤ 6 18
6 - 10 16
10 - 16 14
16 - 25 12
25 - 32 10
11. Test Operation
1. The test operation must be carried
out after the entire installation has been
completed.
2. Please confirm the following points
before the test operation.
• The indoor unit and outdoor unit are installed prop-
erly.
• Piping and wiring are properly connected.
• Ensure that there are no obstacles near the inlet and
outlet of the unit that might cause poor perfor-
mance or product malfunction.
• The refrigeration system does not leak.
• The drainage system is unimpeded and draining to a
safe location.
• The heating insulation is properly installed.
• The grounding wires are properly connected
• The length of the piping and the added refrigerant
stow capacity have been recorded.
• The power voltage is the correct voltage for the air
conditioner.
CAUTION: Failure to perform the test run may result in unit
damage, property damage or personal injury.
3. Test Run Instructions
1. Open both the liquid and gas stop valves.
2. Turn on the main power switch and allow the unit to
warm up.
3. Set the air conditioner to COOL mode, and check the
following points.
Indoor unit
a. Ensure the remote control and its buttons work properly.
b. Ensure the louvers move properly and can be changed
using the remote control.
c. Double check to see if the room temperature is being
registered correctly.
d. Ensure the indicators on the remote control and the
display panel on the indoor unit work properly.
e. Ensure the manual buttons on the indoor unit works
properly.
f. Check to see that the drainage system is unimpeded and
draining smoothly.
g. Ensure there is no vibration or abnormal noise during
operation.
Outdoor unit
a. Check to see if the refrigeration system is leaking. |
|
79 | SRM_M_UNIHIF_0_XXXX_2207XX.pdf | 80 | tradeloom_data/HVAC Data Sources/SRM_M_UNIHIF_0_XXXX_2207XX.pdf | 11. Test Operation
b. Make sure there is no vibration or abnormal noise
during operation.
c. Ensure the wind, noise, and water generated by the unit
do not disturb your neighbors or pose a safety hazard.
4. Drainage Test
For other types,
a. Ensure the drainpipe flows smoothly. New buildings
should perform this test before finishing the ceiling.
b. Remove the test cover. Add 2,000ml of water to the
tank through the attached tube.
c. Turn on the main power switch and run the air
conditioner in COOL mode.
d. Listen to the sound of the drain pump to see if it makes
any unusual noises.
e. Check to see that the water is discharged. It may
take up to one minute before the unit begins to drain
depending on the drainpipe.
f. Make sure that there are no leaks in any of the piping.
g. Stop the air conditioner. Turn off the main power switch
and reinstall the test cover.
For one-way cassette type,
• Before the test, make sure that the water discharge
pipeline is smooth, and check that each connection is
sealed properly.
• Conduct the water discharge test in the new room
before the ceiling is paved.
1. Connect the power supply, and set the air conditioner to
operate in the cool mode.
Check the running sound of the drainage pump.
2. keep cool mode running at least 10 min.
3. Stop the air conditioner. Wait for three minutes, and
then check if there is anything unusual. If the water
discharge piping layout is not correct, the excessive water
flow will cause the water level error and “EH 0E” error
code will be displayed on the display panel. There may
even be water overflowing from the water pan.
4. Continue to add water until the alarm for excessive
water levels is triggered. Check if the drainage pump
drains water immediately. After three minutes, if the
water level does not fall below the warning level, the unit
will shut down.
At this time, you need to turn of the power supply, and
drain away the accumulated water before you can turn on
the unit normally.
5. Turn of the power supply, remove the water manually
using the drainage plug, and put the test cap back to the
original place.
CAUTION:
The drainage plug at the bottom of the unit body is used
to discharge accumulated water from the drain pan when
the air conditioner malfunctions. When the air conditioner
is operating normally, make sure the drainage plug is
properly plugged to prevent water from leaking. |
|
80 | SRM_M_UNIHIF_0_XXXX_2207XX.pdf | 81 | tradeloom_data/HVAC Data Sources/SRM_M_UNIHIF_0_XXXX_2207XX.pdf | Contents
1. First Time Installation Check .................................................................................2
2 Refrigerant Recharge ............................................................................................4
3 Re-Installation .......................................................................................................5
3.1 Indoor Unit ....................................................................................................5
3.2 Outdoor Unit .................................................................................................7
Maintenance |
|
81 | SRM_M_UNIHIF_0_XXXX_2207XX.pdf | 82 | tradeloom_data/HVAC Data Sources/SRM_M_UNIHIF_0_XXXX_2207XX.pdf | Maintenance 2
1. First Time Installation Check
Air and moisture trapped in the refrigerant system affects
the performance of the air conditioner by:
• Increasing pressure in the system.
• Increasing the operating current.
• Decreasing the cooling or heating efficiency.
• Congesting the capillary tubing due to ice build-up in
the refrigerant circuit.
• Corroding the refrigerant system.
To prevent air and moisture from affecting the air
conditioner’s performance, the indoor unit, as well as the
pipes between the indoor and outdoor unit, must be be
leak tested and evacuated.
Leak test (soap water method)
Use a soft brush to apply soapy water or a neutral liquid
detergent onto the indoor unit connections and outdoor
unit connections. If there is gas leakage, bubbles will form
on the connection.
Air purging with vacuum pump
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82 | SRM_M_UNIHIF_0_XXXX_2207XX.pdf | 83 | tradeloom_data/HVAC Data Sources/SRM_M_UNIHIF_0_XXXX_2207XX.pdf | Maintenance 3
Procedure:
1. Tighten the flare nuts of the indoor and outdoor
units, and confirm that both the 2- and 3-way valves
are closed.
2. Connect the charge hose with the push pin of Handle
Lo to the gas service port of the 3-way valve.
3. Connect another charge hose to the vacuum pump.
4. Fully open the Handle Lo manifold valve.
5. Using the vacuum pump, evacuate the system for
30 minutes.
a. Check whether the compound meter indicates
-0.1 MPa (14.5 Psi).
• If the meter does not indicate -0.1 MPa
(14.5 Psi) after 30 minutes, continue
evacuating for an additional 20 minutes.
• If the pressure does not achieve -0.1 MPa
(14.5 Psi) after 50 minutes, check for leakage.
• If the pressure successfully reaches -0.1 MPa
(14.5 Psi), fully close the Handle Lo valve, then
cease vacuum pump operations.
b. Wait for 5 minutes then check whether the gauge
needle moves after turning off the vacuum pump.
If the gauge needle moves backward, check
wether there is gas leakage.
6. Loosen the flare nut of the 3-way valve for 6 or
7 seconds and then tighten the flare nut again.
a. Confirm the pressure display in the pressure
indicator is slightly higher than the atmospheric
pressure.
b. Remove the charge hose from the 3-way valve.
7. Fully open the 2- and 3-way valves and tighten the
cap of the 2- and 3-way valves. |
|
83 | SRM_M_UNIHIF_0_XXXX_2207XX.pdf | 84 | tradeloom_data/HVAC Data Sources/SRM_M_UNIHIF_0_XXXX_2207XX.pdf | Maintenance 4
2. Refrigerant Recharge
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Procedure:
1. Close both 2- and 3-way valves.
2. Slightly connect the Handle Lo charge hose to the
3-way service port.
3. Connect the charge hose to the valve at the bottom
of the cylinder.
4. If the refrigerant is R410A/R32, invert the cylinder to
ensure a complete liquid charge.
5. Open the valve at the bottom of the cylinder for 5
seconds to purge the air in the charge hose, then fully
tighten the charge hose with push pin Handle Lo to
the service port of 3-way valve..
6. Place the charging cylinder onto an electronic scale
and record the starting weight.
7. Fully open the Handle Lo manifold valve, 2- and
3-way valves.
8. Operate the air conditioner in cooling mode to charge
the system with liquid refrigerant.
9. When the electronic scale displays the correct
weight (refer to the gauge and the pressure of the
low side to confirm, the value of pressure refers to
chapter Appendix), turn off the air conditioner, then
disconnect the charge hose from the 3-way service
port immediately..
10. Mount the caps of service port and 2- and 3-way
valves.
11. Use a torque wrench to tighten the caps to a torque
of 18 N.m.
12. Check for gas leakage. |
|
84 | SRM_M_UNIHIF_0_XXXX_2207XX.pdf | 85 | tradeloom_data/HVAC Data Sources/SRM_M_UNIHIF_0_XXXX_2207XX.pdf | Maintenance 5
3. Re-Installation
3.1 Indoor Unit
Collecting the refrigerant into the outdoor unit
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Procedure:
1. Confirm that the 2- and 3-way valves are opened.
2. Connect the charge hose with the push pin of Handle
Lo to the 3-way valve’s gas service port.
3. Open the Handle Lo manifold valve to purge air
from the charge hose for 5 seconds and then close it
quickly.
4. Close the 2-way valve.
5. Operate the air conditioner in cooling mode. Cease
operations when the gauge reaches 0.1 MPa (14.5
Psi).
6. Close the 3-way valve so that the gauge rests
between 0.3 MPa (43.5 Psi) and 0.5 MPa (72.5 Psi).
7. Disconnect the charge set and mount the caps of
service port and 2- and 3-way valves.
8. Use a torque wrench to tighten the caps to a torque
of 18 N.m.
9. Check for gas leakage. |
|
85 | SRM_M_UNIHIF_0_XXXX_2207XX.pdf | 86 | tradeloom_data/HVAC Data Sources/SRM_M_UNIHIF_0_XXXX_2207XX.pdf | Maintenance 6
Air purging with vacuum pump
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Procedure:
1. Tighten the flare nuts of the indoor and outdoor
units, and confirm that both the 2- and 3-way valves
are closed.
2. Connect the charge hose with the push pin of Handle
Lo to the gas service port of the 3-way valve.
3. Connect another charge hose to the vacuum pump.
4. Fully open the Handle Lo manifold valve.
5. Using the vacuum pump, evacuate the system for 30
minutes.
a. Check whether the compound meter indicates
-0.1 MPa (14.5 Psi).
• If the meter does not indicate -0.1 MPa (14.5
Psi) after 30 minutes, continue evacuating for
an additional 20 minutes.
• If the pressure does not achieve -0.1 MPa (14.5
Psi) after 50 minutes, check for leakage.
• If the pressure successfully reaches -0.1 MPa
(14.5 Psi), fully close the Handle Lo valve, then
cease vacuum pump operations.
b. Wait for 5 minutes then check whether the gauge
needle moves after turning off the vacuum pump.
If the gauge needle moves backward, check
wether there is gas leakage.
6. Loosen the flare nut of the 3-way valve for 6 or 7
seconds and then tighten the flare nut again.
a. Confirm the pressure display in the pressure
indicator is slightly higher than the atmospheric
pressure.
b. Remove the charge hose from the 3-way valve.
7. Fully open the 2- and 3-way valves and tighten the
cap of the 2- and 3-way valves. |
|
86 | SRM_M_UNIHIF_0_XXXX_2207XX.pdf | 87 | tradeloom_data/HVAC Data Sources/SRM_M_UNIHIF_0_XXXX_2207XX.pdf | Maintenance 7
3.2 Outdoor Unit
Evacuation for the whole system
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Procedure:
1. Confirm that the 2- and 3-way valves are opened.
2. Connect the vacuum pump to the 3-way valve’s
service port.
3. Evacuate the system for approximately one hour.
Confirm that the compound meter indicates
-0.1 MPa (14.5Psi).
4. Close the valve (Low side) on the charge set and turn
off the vacuum pump.
5. Wait for 5 minutes then check whether the gauge
needle moves after turning off the vacuum pump. If
the gauge needle moves backward, check whether
there is gas leakage.
6. Disconnect the charge hose from the vacuum pump.
7. Mount the caps of service port and 2- and 3-way
valves.
8. Use a torque wrench to tighten the caps to a torque
of 18 N.m. |
|
87 | SRM_M_UNIHIF_0_XXXX_2207XX.pdf | 88 | tradeloom_data/HVAC Data Sources/SRM_M_UNIHIF_0_XXXX_2207XX.pdf | Maintenance 8
Refrigerant charging
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Note: 1. Mechanical connectors used indoors shall comply with local regulations.
2. When mechanical connectors are reused indoors, sealing parts shall be renewed. When flared joints
are reused indoors, the flare part shall be re-fabricated.
Procedure:
1. Close both 2- and 3-way valves.
2. Slightly connect the Handle Lo charge hose to the
3-way service port.
3. Connect the charge hose to the valve at the bottom
of the cylinder.
4. If the refrigerant is R410A/R32, invert the cylinder to
ensure a complete liquid charge.
5. Open the valve at the bottom of the cylinder for 5
seconds to purge the air in the charge hose, then fully
tighten the charge hose with push pin Handle Lo to
the service port of 3-way valve..
6. Place the charging cylinder onto an electronic scale
and record the starting weight.
7. Fully open the Handle Lo manifold valve, 2- and
3-way valves.
8. Operate the air conditioner in cooling mode to charge
the system with liquid refrigerant.
9. When the electronic scale displays the correct
weight (refer to the gauge and the pressure of the
low side to confirm, the value of pressure refers to
chapter Appendix), turn off the air conditioner, then
disconnect the charge hose from the 3-way service
port immediately..
10. Mount the caps of service port and 2- and 3-way
valves.
11. Use a torque wrench to tighten the caps to a torque
of 18 N.m.
12. Check for gas leakage. |
|
88 | SRM_M_UNIHIF_0_XXXX_2207XX.pdf | 89 | tradeloom_data/HVAC Data Sources/SRM_M_UNIHIF_0_XXXX_2207XX.pdf | Contents
1. Display Function ....................................................................................................2
2 Safety Features ......................................................................................................5
3. Basic Functions .......................................................................................................6
3.1 Table .............................................................................................................6
3.2 Abbreviation ..................................................................................................7
3.3 Fan Mode ......................................................................................................7
3.4 Cooling Mode ...............................................................................................7
3.5 Heating Mode(Heat Pump Units) ...................................................................8
3.6 Auto-mode ....................................................................................................9
3.7 Drying Mode ...............................................................................................10
3.8 Forced Operation Function ..........................................................................10
3.9 Timer Function ............................................................................................10
3.10 ECO Function ..............................................................................................10
3.11 Auto-Restart Function ..................................................................................10
3.12 Drain Pump Control .....................................................................................10
4. Optional Functions ..............................................................................................11
5. Remote Controller Functions ..............................................................................12
5.1 Infrared Wireless Remote Controller.............................................................12
5.2 LCD Wired Remote Controller .....................................................................16
5.3 Centralized Controller .................................................................................32
Product Features |
|
89 | SRM_M_UNIHIF_0_XXXX_2207XX.pdf | 90 | tradeloom_data/HVAC Data Sources/SRM_M_UNIHIF_0_XXXX_2207XX.pdf | Product Features 2
1. Display Function
Floor Ceiling Type
MANUAL TIMER
ALAR M
OPERA TION
DEF./F AN
MANUAL TIMER
ALAR M
OPERA TION
DEF./F AN
MANUAL TIMER
ALAR M
OPERA TION
DEF./F AN
*OGSBSFESFDFJWFS
0QFSBUJPOJOEJDBUPS
5JNFSJOEJDBUPS
"MBSNJOEJDBUPS -&%EJTQMBZ
.BOVBMCVUUPO
13&%&'
QSFIFBUJOHEFGSPTU
JOEJDBUPS
MANUAL
Display 1 Display 2
*OGSBSFESFDFJWFS
0QFSBUJPOJOEJDBUPS
5JNFSJOEJDBUPS
"MBSNJOEJDBUPS
13&%&'
QSFIFBUJOHEFGSPTU
JOEJDBUPS
*OGSBSFESFDFJWFS
13&%&'
QSFIFBUJOHEFGSPTU
JOEJDBUPS
MANUAL
TIMER ALARMOPERATION DEF./FAN
Display 3 Display 4
*OGSBSFESFDFJWFS
-&%EJTQMBZ 13&%&'
QSFIFBUJOHEFGSPTU
JOEJDBUPS
MANUAL TIMER
ALARM
OPERATION
DEF./FAN
*OGSBSFESFDFJWFS
13&%&'
QSFIFBUJOHEFGSPTU
JOEJDBUPS
MANUAL
TIMER ALARMOPERATION DEF./FAN
Display 5 Display 6
*OGSBSFESFDFJWFS
0QFSBUJPOJOEJDBUPS
5JNFSJOEJDBUPS
"MBSNJOEJDBUPS
-&%EJTQMBZ
.BOVBMCVUUPO
13&%&'
QSFIFBUJOHEFGSPTU
JOEJDBUPS
MANUAL
*OGSBSFESFDFJWFS
0QFSBUJPOJOEJDBUPS
5JNFSJOEJDBUPS
"MBSNJOEJDBUPS -&%EJTQMBZ
'VODCVUUPO
13&%&'
QSFIFBUJOHEFGSPTU
JOEJDBUPS
Display 7 Display 8 |
|
90 | SRM_M_UNIHIF_0_XXXX_2207XX.pdf | 91 | tradeloom_data/HVAC Data Sources/SRM_M_UNIHIF_0_XXXX_2207XX.pdf | Product Features 3
New 4-way Cassette Type &New Compact Cassette Type
Operation
indicator
Electric heating
indicator
( some models)
Timer
indicator
PRE-DEF indicator
(pre-heating/defrost)
Alarm indicator
When wireless control
feature is activated
( some models)
LED display
1-way Cassette Type
“ ” when Electric heating feature is activated (Not available for this unit).
“ ” when TIMER is set..
“ ” when the unit is on.
“ ” Alarm indicator.
“ ” when Wireless Control feature is activated(some units).
“ ” when pre-heating/defrost feature is activated.
Displays temperature, operation feature and Error codes. “ ”
“ ” when Active Clean feature is turned on.
“ ” when WiFi module enters AP mode (some units).
“ ” when Forced cooling feature is turned on.
“ ” when 8 ℃ heating feature is turned on.
“ ” Flter cleaning reminder.
Duct Type |
|
91 | SRM_M_UNIHIF_0_XXXX_2207XX.pdf | 92 | tradeloom_data/HVAC Data Sources/SRM_M_UNIHIF_0_XXXX_2207XX.pdf | Product Features 4
Compact Cassette Type
Console Type
Infrared receiver
Timer indicator
PRE-DEF
(pre-heating/defrost)
indicator
Operation indicator
Manual button
Display 1
Infrared receiver
Operation indicator
Manual button
Display 2 |
|
92 | SRM_M_UNIHIF_0_XXXX_2207XX.pdf | 93 | tradeloom_data/HVAC Data Sources/SRM_M_UNIHIF_0_XXXX_2207XX.pdf | Product Features 5
New Console Type
Display Function
ECO function (available on select units only)
When Wireless Control feature is activated (some units)
Temperature value Temperature
(3s)
Timer ON is set.
Activation of Swing, Boost, Silence or UV-C lamp
(3s)
Timer OFF is set.
Cancellation of Swing, Boost, Silence or UV-C lamp
Defrost
Active Clean
Heating in room temperature under 8°C(46°F)
Note: Please select the display function according to your purchase product. |
|
93 | SRM_M_UNIHIF_0_XXXX_2207XX.pdf | 94 | tradeloom_data/HVAC Data Sources/SRM_M_UNIHIF_0_XXXX_2207XX.pdf | Product Features 5
2. Safety Features
Compressor three-minute delay at restart
Compressor functions are delayed for up to ten seconds
upon the first startup of the unit, and are delayed for up
to three minutes upon subsequent unit restarts.
Automatic shutoff based on discharge temperature
If the compressor discharge temperature exceeds a certain
level for nine seconds, the compressor ceases operation.
Inverter module protection
The inverter module has an automatic shutoff mechanism
based on the unit’s current, voltage, and temperature.
If automatic shutoff is initiated, the corresponding error
code is displayed on the indoor unit and the unit ceases
operation.
Indoor fan delayed operation
• When the unit starts, the louver is automatically
activated and the indoor fan will operate after a period
of setting time or the louver is in place.
• If the unit is in heating mode, the indoor fan is
regulated by the anti-cold wind function.
Compressor preheating
Preheating is automatically activated when T4 sensor is
lower than setting temperature.
Sensor redundancy and automatic shutoff
• If one temperature sensor malfunctions, the air
conditioner continues operation and displays the
corresponding error code, allowing for emergency use.
• When more than one temperature sensor is
malfunctioning, the air conditioner ceases operation. |
|
94 | SRM_M_UNIHIF_0_XXXX_2207XX.pdf | 95 | tradeloom_data/HVAC Data Sources/SRM_M_UNIHIF_0_XXXX_2207XX.pdf | Product Features 6
3. Basic Functions
3.1 Table
Functions
Cooling Mode&Heating mode Heating Mode
Auto mode
Outdoor Fan Control Defrosting
Mode
Anti-cold Air
Function
Cases
Case 1:
Compressor
Frequency and T4
Case 2:T4 Case 1 Case 2 Case 1 Case 2 Case 1 Case 2 Case 3
Models 9k~18k
Note: The detailed description of case 1 or case 2 is shown in the following function sections(from 3.4 to 3.6). |
|
95 | SRM_M_UNIHIF_0_XXXX_2207XX.pdf | 96 | tradeloom_data/HVAC Data Sources/SRM_M_UNIHIF_0_XXXX_2207XX.pdf | Product Features 7
3.2 Abbreviation
Unit element abbreviations
Abbreviation Element
T1 Indoor room temperature
T2 Coil temperature of evaporator
T3 Coil temperature of condenser
T4 Outdoor ambient temperature
TP Compressor discharge temperature
Tsc Adjusted setting temperature
CDIFTEMP Cooling shutdown temperature
HDIFTEMP2 Heating shutdown temperature
TCDE1 Exit defrost temperature1
TCDE2 Exit defrost temperature2 (maintain
for a period of time )
TIMING_
DEFROST_TIME Enter defrost time
In this manual, such as CDIFTEMP , HDIFTEMP2, TCDE1,
TCDE2, TIMING_DEFROST_TIME...etc., they are well-
setting parameter of EEPROM.
3.3 Fan Mode
When fan mode is activated:
• The outdoor fan and compressor are stopped.
• Temperature control is disabled and no temperature
setting is displayed.
• The indoor fan speed can be set to 1%~100%, or low,
medium, high and auto.
• The louver operations are identical to those in cooling
mode.
• Auto fan: In fan-only mode, AC operates the same as
auto fan in cooling mode with the temperature set at
24°C(75°F).
3.4 Cooling Mode
3.4.1 Compressor Control
Reach the configured temperature:
1) When the compressor runs continuously for less than
120 minutes.
• If the following conditions are satisfied, the
compressor ceases operation.
• Calculated frequency(fb) is less tha n minimum limit
frequency(FminC).
• Compressor runs at FminC more than ten minutes.
• T1 is lower than or equal to (Tsc-CDIFTEMP-
0.5°C/0.9°F)
2) When the compressor runs continuously for more than
120 minutes.
• If the following conditions are satisfied, the
compressor ceases operation.
• Calculated frequency(fb) is less than minimum limit
frequency(FminC).
• Compressor runs at FminC more than 10 minutes.
• When T1 is lower than or equal to (Tsc-CDIFTEMP).
Note: CDIFTEMP is EEPROM setting parameter. It is
2°C(35.6°F) usually.
3) If one of the following conditions is satisfied, not judge
protective time.
• Compressor running frequency is more than test
frequency.
• When compressor running frequency is equal to
test frequency, T4 is more than 15°C(59 °F) or T4
fault.
• Change setting temperature.
• Turning on/off turbo or sleep function
• Various frequency limit shutdown occurs.
3.4.2 Indoor Fan Control
1) In cooling mode, the indoor fan operates continuously.
The fan speed can be set to 1%-100%, or low,
medium, high and auto.
2) Auto fan action in cooling mode:
• Descent curve
• When T1-Tsc is lower than or equal to 3.5°C/6.3°F,
fan speed reduces to 80%(High);
• When T1-Tsc is lower than or equal to 1°C/1.8°F,,
fan speed reduces to 60%(Medium);
• When T1-Tsc is lower than or equal to 0.5°C/0.9°F,
fan speed reduces to 40%(Low);
• When T1-Tsc is lower than or equal to 0°C/0°F, fan
speed reduces to 20%(Low);;
• When T1-Tsc is lower than or equal to -0.5°C/-0.9°F,
fan speed reduces to 1%(Low);.
• Rise curve
• When T1-Tsc is higher than 0°C/0°F, fan speed
increases to 20%(Low);;
• When T1-Tsc is higher than 0.5°C/0.9°F, fan speed
increases to 40%(Low);
• When T1-Tsc is higher than 1°C/1.8°F,, fan speed
increases to 60%(Medium);
• When T1-Tsc is higher than 1.5°C/2.7°F, fan speed
increases to 80%(High);
• When T1-Tsc is higher than 4°C/7.2°F, fan speed
increases to 100%(High).
3.4.3 Outdoor Fan Control
Case 1:
• The outdoor unit will be run at different fan speed
according to T4 and compressor frequency. |
|
96 | SRM_M_UNIHIF_0_XXXX_2207XX.pdf | 97 | tradeloom_data/HVAC Data Sources/SRM_M_UNIHIF_0_XXXX_2207XX.pdf | Product Features 8
• For different outdoor units, the fan speeds are
different.
Case 2:
• The outdoor unit will be run at different fan speed
according to T4.
• For different outdoor units, the fan speeds are
different.
3.4.4 Condenser Temperature Protection
When the condenser temperature exceeds a configured
value, the compressor ceases operation.
3.4.5 Evaporator Temperature Protection
• Off: Compressor stops.
• Decrease: Decrease the running frequency to the lower
level per 1 minute.
• Hold: Keep the current frequency.
• Resume: No limitation for frequency.
3.5 Heating Mode(Heat Pump Units)
3.5.1 Compressor Control
1) Reach the configured temperature
• If the following conditions are satisfied, the
compressor ceases operation.
• Calculated frequency(fb) is less than minimum limit
frequency(FminH).
• Compressor runs at FminH more than 10 minutes.
• T1 is higher than or equal to Tsc+ HDIFTEMP2.
Note: HDIFTEMP2 is EEPROM setting parameter. It is
2°C(35.6°F) usually.
• If one of the following conditions is satisfied, not
judge protective time.
• Compressor running frequency is more than test
frequency.
• Compressor running frequency is equal to test
frequency, T4 is more than 15°C(59 °F) or T4 fault.
• Change setting temperature.
• Turning on/off turbo or sleep function
2) When the current is higher than the predefined safe
value, surge protection is activated, causing the
compressor to cease operations.
3.5.2 Indoor Fan Control:
1) In heating mode, the indoor fan operates continuously.
The fan speed can be set to 1%-100%,or low,
medium, high and auto.
• Anti-cold air function
• If the temperature difference of T2 changes during
auto fan and causes the fan speed to change,
run the current fan speed for 30 seconds first,
the default interval is the interval before the fan
speed changes, and then judge T2 according to the
current interval after 30 seconds to get the final
anti-cold air interval.
Case 1:
T1 ≥ 19°C(66.2°F) ΔTE1=0
15°C(59°F) ≤ T1 <19°C(66.2°F) ΔTE1=19°C-T1
(34.2°F-T1)
T1<15°C(59°F) ΔTE1=4°C(7.2°F)
Case 2: ΔTE1=0
2) Auto fan action in heating mode: |
|
97 | SRM_M_UNIHIF_0_XXXX_2207XX.pdf | 98 | tradeloom_data/HVAC Data Sources/SRM_M_UNIHIF_0_XXXX_2207XX.pdf | Product Features 9
• Rise curve
• When T1-Tsc is higher than -1.5°C/-2.7°F,, fan
speed reduces to 80%(High);
• When T1-Tsc is higher than 0°C/0°F, fan speed
reduces to 60%(Medium);
• When T1-Tsc is higher than 0.5°C/0.9°F, fan speed
reduces to 40%(Low);
• When T1-Tsc is higher than 1°C/1.8°F, fan speed
reduces to 20%(Low).
• Descent curve
• When T1-Tsc is lower than or equal to 0.5°C/0.9°F,
fan speed increases to 40%(Low);
• When T1-Tsc is lower than or equal to 0°C/0°F, fan
speed increases to 60%(Medium);
• When T1-Tsc is lower than or equal to -1.5°C/-
2.7°F,, fan speed increases to 80%(high);
• When T1-Tsc is lower than or equal to -3°C/-5.4°F,
fan speed increases to 100%(High).
3.5.3 Outdoor Fan Control:
Case 1:
• The outdoor unit will be run at different fan speed
according to T4 and compressor frequency.
• For different outdoor units, the fan speeds are
different.
Case 2:
• The outdoor unit will be run at different fan speed
according to T4.
• For different outdoor units, the fan speeds are
different.
3.5.4 Defrosting mode
• The unit enters defrosting mode according to the
temperature value of T3 and T4 as well as the
compressor running time.
• In defrosting mode, the compressor continues to run,
the indoor and outdoor motor will cease operation,
the defrost light of the indoor unit will turn on, and
the “
” symbol is displayed.
• If any one of the following conditions is satisfied,
defrosting ends and the machine switches to normal
heating mode:
• T3 rises above TCDE1.
• T3 maintained above TCDE2 for 80 seconds.
• Unit runs for 15 minutes consecutively in defrosting
mode.
• If T4 is lower than or equal to -22°C(-7.6 °F) and
compressor running time is more than TIMING_
DEFROST_TIME, if any one of the following conditions
is satisfied, defrosting ends and the machine switches
to normal heating mode:
• Unit runs for 10 minutes consecutively in defrosting
mode.
• T3 rises above 10°C/50°F..
The following conditions apply only to certain models,
see table in section 3.1 for details.
Case 1:
• T3 is lower than 3°C(37.4°F) and compressor
running time is more than 120 minutes, at this
time, if T3 is lower than TCDI1+4°C(39.2°F) for 3
minutes, the unit enters defrosting mode. If any one
of the following conditions is satisfied, defrosting
ends and the machine switches to normal heating
mode:
• T3 rises above TCDE1+4°C/7.2°F.
• T3 maintained above TCDE2+4°C/7.2°F for 80
seconds.
• Unit runs for 15 minutes consecutively in defrosting
mode.
Case 2:
• If any one of the following conditions is satisfied, the
unit enters defrosting mode
• If T3 or T4 is lower than -3°C for 30 seconds,Ts-T1
is lower than 5°C and compressor running time is
more than EE_TIME_DEFROST7.
• If T3 or T4 is lower than -3°C for 30 seconds and
compressor running time is more than EE_TIME_
DEFROST7+30 minutes.
• If any one of the following conditions is satisfied,
defrosting ends and the machine switches to normal
heating mode:
• T3 rises above TCDE1+4°C/7.2°F.
• T3 maintained above TCDE2+4°C/7.2°F for 80
seconds.
• Unit runs for 15 minutes consecutively in defrosting
mode.
3.5.5 Evaporator Coil Temperature Protection
• Off: Compressor stops.
• Decrease: Decrease the running frequency to the lower
level per 20 seconds.
• Hold: Keep the current frequency.
• Resume: No limitation for frequency. |
|
98 | SRM_M_UNIHIF_0_XXXX_2207XX.pdf | 99 | tradeloom_data/HVAC Data Sources/SRM_M_UNIHIF_0_XXXX_2207XX.pdf | Product Features 10
3.6 Auto-mode
• This mode can be selected with the remote controller
and the temperature setting can be adjusted between
16°C~30°C.
Case 1:
• In auto mode, the machine selects cooling, heating, or
fan-only mode on the basis of ∆ T (∆ T =T1-TS).
∆T Running mode
∆T>2°C(3.6°F) Cooling
-3℃(-5.4°F)≤∆T≤2°C(3.6°F) Fan-only
∆T<-3°C(-5.4°F) Heating*
Heating*: In auto mode, cooling only models run the fan
• Indoor fan will run at auto fan speed.
• The louver operates same as in relevant mode.
• If the machine switches mode between heating and
cooling, the compressor will keep stopping for certain
time and then choose mode according to ∆ T.
Case 2:
In auto mode, the machine selects cooling, heating or fan-
only mode on the basis of T1,Ts and T4.
Case 3:
In auto mode, the machine selects cooling, heating or
fan-only mode on the basis of T1,Ts, T4 and relative
humidity(φ).
3.7 Drying mode
• In drying mode, AC operates the same as auto fan in
cooling mode.
• All protections are activated and operate the same as
they do that in cooling mode.
• Low Room Temperature Protection
If the room temperature is lower than 10°C/50°F, the
compressor ceases operations and does not resume until
room temperature exceeds 12°C/53.6°F.
3.8 Forced operation function
Press the AUTO/COOL button, the AC will run as below
sequence:
Forced auto →Forced cooling →Off
• Forced cooling mode:
The compressor and outdoor fan continue to run and
the indoor fan runs at breeze speed. After running for 30
minutes, the AC will switch to auto mode with a preset
temperature of 24°C(76°F).
• Forced auto mode:
Forced auto mode operates the same as normal auto mode
with a preset temperature of 24°C(76°F).
• The unit exits forced operation when it receives the
following signals:
• Switch off
• Changes in:
• mode
• fan speed
• sleep mode
• Follow me
3.9 Timer Function
• The timing range is 24 hours.
• Timer On. The machine turns on automatically at the
preset time.
• Timer Off. The machine turns off automatically at the
preset time.
• Timer On/Off. The machine turns on automatically at
the preset On Time, and then turns off automatically
at the preset Off Time.
• Timer Off/On. The machine turns off automatically at
the preset Off Time and then turns on automatically at
the preset On Time.
• The timer does not change the unit operation mode.
If the unit is off now, it does not start up immediately
after the “timer off” function is set. When the setting
time is reached, the timer LED switches off and the
unit running mode remains unchanged.
• The timer uses relative time, not clock time |
|
99 | SRM_M_UNIHIF_0_XXXX_2207XX.pdf | 100 | tradeloom_data/HVAC Data Sources/SRM_M_UNIHIF_0_XXXX_2207XX.pdf | Product Features 11
3.10 Sleep function
• The sleep function is available in cooling, heating, or
auto mode.
• The operational process for sleep mode is as follows:
• When cooling, the temperature rises 1°C/1.8°F
(to not higher than 30°C/86°F) every hour. After 2
hours, the temperature stops rising and the indoor
fan is fixed at low speed.
• When heating, the temperature decreases
1°C/1.8°F(to not lower than 16°C/60.8°F) every
hour. After 2 hours, the temperature stops
decreasing and the indoor fan is fixed at low speed.
Anti-cold wind function takes priority.
• The operating time for sleep mode is 8 hours, after
which, the unit exits this mode.
• The timer setting is available in this mode.
3.11 Auto-Restart function
• The indoor unit has an auto-restart module that
allows the unit to restart automatically. The module
automatically stores the current settings and in the
case of a sudden power failure, will restore those
setting automatically within 3 minutes after power
returns. |
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