Gree GRS-CQ6.0Pd/Na-K Service Manual page 29

AIR-TO-WATER HEAT PUMP
If code 8 is set as 0，that means priority is cooling operation. The heat pump will
always run in space cooling （include floor cooling） mode. In this case sanitary water
is only heated by electric heater. On the other hand，If code 8 is set as 1，that
means priority is sanitary heating. The sanitary water is heated by heat pump and
electric heater. In that case，space cooling can not act when sanitary water is
heated. When sanitary water heating is stopped，the heat pump will turn to space
cooling.
Function code 9 ： Setting priority when heating demand and sanitary heating
If code 9 is set as 0，that means priority is heating operation. The heat pump will
always run in space heating（include floor heating） mode. In that case, sanitary
water is only heated by electric heater. On the other hand， if code 9 is set as 1， that
means priority is sanitary heating. Sanitary water is heated by heat pump and
electric heater. Space heating can not act when sanitary water is heated. When
sanitary water heating is stopped，the heat pump will turn to space heating.
Function code 10 ：Setting status of back-up heater（indoor unit）
If code 10 is set as 1, half capacity of back-up heater in the indoor unit can be
turned into use when the out-door temperature is below the set value in code 20.
If code 10 is set as 2, full capacity of back-up heater in the indoor unit can be turned
into use when the out-door temperature is below the set value in code 20.
Function code 11 ：Setting start date of disinfection operation
Value of function code 11 determines the date when disinfection mode is
running. '0' stands for Sunday, '1' for Monday ... and '6' for Saturday.
Function code 12 ：Setting start time in 24 hours of disinfection operation
Value of function code 12 determines the time when the disinfection mode is
running. '00' stands for 0:00am, '01' for 01:00am... '22' for 22:00 and '23' for
23:00pm.
Function code 13 ：Metal Base (pedestal) heater
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.
demand are required at the same time
CONTROL
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