Haier AB072FDBHA, AB122FDAHA, AB092FDAHA, AB092FDBHA, AB122FDBHA Installation Manual
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MRV Intelligent Network Cassette Type
Air Conditioner Indoor Unit
INSTALLATION MANUAL
No.0010570459
B
Please read this manual carefully before using.
Please keep this manual carefully and safely.
AB072FDAHA
AB092FDAHA
AB122FDAHA
AB162FDAHA
AB182FDAHA
AB242FDAHA
AB282FDAHA
AB072FDBHA
AB092FDBHA
AB122FDBHA
AB162FDBHA
AB182FDBHA
AB242FDBHA
AB282FDBHA
Contents
Safety cautions-----------------------------------------------------------------------------------------------------1
Indoor unit installation----------------------------------------------------------------------------------------- 2-7
Refrigerant piping------------------------------------------------------------------------------------------------8-9
Electrical wiring & Application control--------------------------------------------------------------------10-14
Trial operation-----------------------------------------------------------------------------------------------------15
Troubleshooting-----------------------------------------------------------------------------------------------16-17
Panel installation----------------------------------------------------------------------------------------------18-21
Caution
Auto Restart function for C-MRV models
Haier Auto Restart function: when the unit power drops down suddenly, the unit
microprocessor will store the previous working condition and when the power is on again,
the unit will run as this memory.
Auto Restart function is designed basically on the MRV whole system, but it is suitable
for each indoor unit individually.
If some of indoor units power cut down, but the outdoor unit and the other indoor units
still work, maybe problems will happen such as freezing at cooling mode and overload
protection at heating mode on those indoor units without power.
Reason
When one or some indoor units power drops down and the other indoor units are still
work, the indoor units without the power, will keep the previous working condition before
the power is off. And expansion valve keeps open at a kind of opening rate condition as
the previous requirement, so there is refrigerant flowing in the exchanger, but the indoor
fan stops working. If the units work at cooling mode, the indoor units without the power
will maybe make freezing. If the unit works at heating mode, maybe the outdoor unit
compressor will stop because of the pressure or temperature protection. This is our design
basically on Auto Restart function currently.
Haier, Herewith, solemnly informs our customers, installers, distributors, etc. when making
installation, please make sure when the power is shut down whether artificially or
accidentally, the whole system including outdoor unit and all the indoor units must
be off. If you do not make the installation as our indication, Haier will not be responsible
for any problem resulting from this.
21
20
Safety Cautions
1
The following safety measures must be strictly followed.
Keep these safety measures close at hand for timely references.
After installation, trial run must be made to ensure normal operation. Familiarize the user with the use
and maintenance through this manual.
If the air conditioner is transferred to a new user, this manual should also be transferred.
Please pay attention to the following:
Warning: Inappropriate use may lead to fatal or serious injuries.
Caution: Inappropriate use may lead to bodily harm or mechanical damage; it may lead to serious
consequences in some cases.
Any instructions with the sign of ì NOî shall be strictly followed, otherwise, it may cause me-
chanical damage or endanger the safety of the user.
Any instructions with the sign of ì STOPî shall be strictly followed, otherwise, it may cause me-
chanical damage or endanger the safety of the user.
Entrusted installation
Installation should be entrusted with after-sale
servicemen. Self-installation is likely to cause
water leakage, shock and fire, etc.
Installation should be done according to this installation manual. Inappropriate installation may lead to
water leakage, shock and fire, etc.
Connection of the earth wire
The earth wire should not be connected to gas pipes,
water pipes, lightning rods or telephone wires. Poor
earth may lead to shocks
After-sale servicemen should take measures to avoid
refrigerant leakage.
Refrigerant leak may cause anoxia when a certain
density is reached. If the room is small, make sure to
have sound safety measures to avoid anoxia accidents.
The installation of the electric part should be conducted by qualified professionals and done according to the installation manual. Special return circuit
must be used. Insufficient capacity return circuit and
inappropriate installation may lead to fire accidents.
Installation site
The site must be firm enough to withstand the weight
of the air conditioner to prevent falling.
During installation, if refrigerant leakage occurs,
ventilation measures must be taken. When refrigerant meets with fire, hazardous gas will be produced.
After installation, make sure that there is no refrigerant leakage.
Refrigerant, if meeting with heaters and stoves, etc
in the room, may produce hazardous gas.
Specific cables should be used for the wiring. To avoid
external tension of the cables, the terminals should
be firmly fixed. Inappropriate connection and fixture
may lead to fire accidents.
In order to discharge the condensed water, the
installation of the drainpipe should be done in
accordance with the manual instructions. The
drainpipe should be treated for heat isolation.
Inappropriate treatment may lead to water leakage in the room.
Electric leak breaker should be installed.
Without it, shock accidents may occur.
Do not install at places where inflammable gas leak
may occur.
Gas leakage may lead to fire accident.
Caution
Warning
2
Indoor unit installation
19
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