Gree GRS-CQ6.0Pd/Na-K Service Manual page 79

AIR-TO-WATER HEAT PUMP
After connection of all waterway pipelines, perform leakage test firstly (refer to
debugging of the unit). After that, bind up the water pipes, water temp sensor and
wires with wrapping tapes attached with the unit.
Refer to Installation Sketch of Unit for details.
Indoor Unit
Circulating water inlet/outlet of main unit
Cooling water inlet of water tank
Circulating water inlet/outlet of water tank
Hot water outlet of water tank
Note:
① Distance between main unit and insulated water tank should not exceed 5m
levelly and 3m vertically. If higher, please contact with us. Water tank on lower
and main unit on higher side is recommended.
② Prepare the materials according to the above joints dimension. If cut-off valve is
installed outside the room, PPR pipe is recommended to avoid freeze damage.
③ Waterway pipelines can't be installed until water heater unit is fixed. Do not let
dust and other sundries enter into pipeline system during installation of
connection pipes.
④ After connection of all waterway pipelines, perform leakage test firstly. After that,
perform heat preservation of waterway system; meanwhile, pay more attention to
valves and pipe joints. Ensure enough thickness of insulated cotton. If necessary,
install heating device for pipeline to prevent the pipeline from freezing.
⑤ Hot water supplied from insulated water tank depends on pressure of water tap,
so there must be supply of tap water.
⑥ During using, the cut-off valve of cooling water inlet of water tank should be kept
normally on.
Other Thermal sensor (less than 5 meters)
Water Tank
Cool Water
Inlet
Power cord of booster heater
Joints Dimension
Description
Hot water output
Other
Thermal
System
Temp Sensor 1
Safety check
Filter
valve
Tap water
temp sensor 2
Blow-off Outlet
Cut-off Valve
Joint pipe thread
1"Male BSP
1/2"Female BSP
3/4"Female BSP
1/2"Female BSP
INSTALLATION
74