Gree VERSATI SERIES Service Manual Download Page 28

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Air to Water Heat Pump

Service Manual- Versati Series

DPOUSPM

If code 13 is set as 0, the Metal Base(pedestal) heater will never be turned on;
If code 13 is set as 1, when the compressor started and the out-door temperature is below 0 , the Metal

Base(pedestal) heater will be turned on; when the compressor stopped or the out-door temperature is higher
than 2 , the Metal Base(pedestal)heater will be turned off.

Function code 14: Quantity of tank sensor

If code 14 is set as 1, there is only one temperature sensor on the sanitary water tank;
If code 14 is set as 2, there are two temperature sensors on the sanitary water tank;the one in the middle of

the tank is for display(in the control panel), and the other one is for control (control ON/OFF of the heat pump or
electric heater).

Function code 15: Tank equipment

If code 15 is set as 0, there is no sanitary water tank installed in the system. The sanitary water heating and

disinfection operation are in valid in the control Panel.

If code 15 is set as 1, sanitary water tank is installed in the system. The sanitary water heating and

disinfection operation are available in the control panel.

Function code 16: Other thermal equipment

If code 16 is set as 0, there is no other thermal equipment connected to the tank.
If code 16 is set as 1, other thermal equipment(such as gas boiler, oil boiler or solar system) is connected to

the tank(this tank must be two coil, one for heat pump and the other for other thermal equipment).

Function code 17: FCU equipment

If code 17 is set as 0, there is no FCU (FAN COIL UNIT) equipped in the water system. In order to

preventing condensation on the floor during cooling operation, the setting value of the outflow water
temperature can not be below 16 . If code 17 is set as 1, there is FCU (FAN COIL UNIT) equipped in the water
system. In this case, 2-way value should be installed and connected to the indoor PCB. Otherwise, the unit will
operate abnormally.

Function code 18: Remote air temperature sensor

If code 18 is set as 0, the remote air temperature sensor is not equipped. The unit can only be operated

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operate.

If code 18 is set as 1, the remote air temperature sensor is equipped. The unit can operate according the

set value of the code 1.

Function code 19: Heating operation level

If code 19 is set as 0, in space heating, the unit will be operated by high temperature cycle. The setting

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to 55 . The high temperature cycle suitable for FCU or

radiator is equipped in the water loop.

If code 19 is set as 1, in space heating, the unit will be operated by low temperature cycle. The setting value

of outflow water temperature ranges from 25 to 45 , low temperature cycle suitable for under-floor coil is
equipped in the water loop.

Function code 20: Setting startup temperature of back-up heater(indoor unit)

Set the outdoor air temperature when half capacity of electric heater starts operating.
Example : If Value is set as ‘-1’:
Half capacity of electric heater will start operating when outdoor air temperature is below -1 … and current

outflow water temperature or room air temperature is much lower than target outflow water temperature or
target room air temperature.

Function code 21: Setting maximum water tank temperature heated by heat pump cycle

Set the maximum temperature generated by AWHP compressor cycle.
Example : If Value is set as ‘50’:
If the target water tank temperature is 60 , and when the current water tank temperature is below 50 , the

water tank is heated by heat pump. When current water tank temperature is higher than 50 but lower than
target water tank temperature (in this case is 60 ), the water tank is heated by water heater in tank

Function code 22: Setting heating temperature of disinfection operation

Set the target temperature of disinfection operation.
Disinfection operation is special sanitary tank operation mode to kill and to prevent growth of viruses inside

the tank.

Before set this function, the value of code 6 should be set as 1.

Function code 23, 24: Setting the range of weather-dependent operation

Weather-dependent operation is that the unit automatically adjusts target temperature (outflow water or

room air) according to the outdoor air temperature.

Value of code 23:

Lower limit of the outdoor air temperature;