Table of Contents
Advertisement
Contents
Safety cautions-----------------------------------------------------------------------------------------------------1
Indoor unit installation----------------------------------------------------------------------------------------- 2-7
Refrigerant piping------------------------------------------------------------------------------------------------8-9
Electrical wiring & Application control--------------------------------------------------------------------10-14
Trial operation-----------------------------------------------------------------------------------------------------15
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
Advertisement
Table of Contents
