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Pay special care to the following and check after installation
Unproper installation may cause
Check
Is gas leakage check performed?
Is unit properly insulated?
Is water drainage smooth?
Is power voltage meet that stipulated on the nameplate?
Is wiring and piping correctly arranged?
Is unit safely grounded?
Is wire size correct?
Are there any obstacles on air inlet and outlet grill of
indoor and outdoor unit?
Is record made for piping length and refrigerant
charging amount?
Unit might fall down, make vibration or noise.
This may lead to gas shortage.
Dew or water drop may occur.
Dew or water drop may occur.
Problem may occur or parts got burned.
Problem may occur or parts got burned.
There might be a danger of electric shock.
Problem may occur or parts got burned.
This may cause poor cooling.
It is hard to control refrigerant charging
amount.
You can use [swing] button of the remote controller to set or cancel temperature compensation function.
(1) About temperature compensation function setting
* The setting method for heating mode:
press [ON/OFF] button of the remote controller to start the indoor unit, setting temperature: 24¡ , press [swing] button 7
times in 5 seconds, the buzzer will ring twice, and enter heating temp. compensation mode.
set compensation temp. , if the set temp.is 25¡ , the compensation temp. is +1¡ , you can set it in range of 0¡ to +6¡
*The setting method for cooling mode:
press [ON/OFF] button of the remote controller to start the indoor unit, setting temperature:24¡ : press [swing] button
7 times in 5 seconds, the buzzer will ring twice, and enter cooling temp. compensation mode.
(2) Temperature compensation function checking
*In cooling mode, setting temp.: 30 degree, High fan speed, press [swing] button 7 times in 5 seconds, The Running lamp
will flash, the times of flash is same with cooling compensation setting number
*In heating mode, setting temp. :16 degree, high fan speed, press [swing] 7 times in 5 seconds, the running lamp will flash,
the flashing times is same with heating compensation setting number
Concerning MRV Auto Restart function for H-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.
The unit has temperature compensation function.
(
Only used for remote controller)
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Electrical Wiring