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Electrical wiring, The unit has temperature compensation function – haier AB124FAAHA User Manual

Page 30

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Item to the checked

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

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