Gree GRS-Cm28/NaA-M - Unit Function Settings

Chapter Ⅲ Debugging and Operation（5. Unit Function Settings）
53
parameters of unit can refer to the parameters of nominal working condition.
Engineering
project name
Unit model
Debugging
personnel
Date
Rated flow(m3/h) and lift(m) of circulating pump
Flow:
Lift:
Capacity of water tank(m
3
):
Choose the model according
to the lowest temperature
Circulating water
inlet pipe
diameter(mm)
Circulating water
outlet pipe
diameter(mm)
Debugging status: ■ Circulating Quantity of modular units:
Status parameters
Unit
Before turning on
the unit
30min
Outdoor ambient
temperature is 20℃; water
inlet temperature is 15℃;
water outlet temperature is
set in 50℃
Outdoor
ambient
temperature
℃
Power supply
voltage
V
Compressor
current
A
Discharge
temperature
℃
Suction
temperature
℃
Water outlet
temperature
℃
Debugging conclusion
5. Unit Function Settings
Note:
●
This instruction is only applicable for the main board of water heater.
●
Please ask professional person the operate the DIP.
●
Cut off the power before operating the DIP.
There are two groups of DIP for the main board of water heater. The first SA3 (4-bit DIP)
group is the address DIP for the unit, which is set 1# unit during ex-factory and can be operated
by professional debugging person. The other group SA5 (2-bit) is the parameters DIP, which is
set well at ex-factory.
DIP address setting will be stated as below by two kinds of circumstances:
◆
Single unit