Gree Versati II Series - 1.3.4 ELECTRIC WIRING PRINCIPLES

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Air to Water Heat Pump
Service Manual- Versati II Series
INSTALLATION
temp sensor 2
Blow-off Outlet
Cut-off Valve
Tap water
Filter
Safety check
valve
Hot water output
Water Tank
Temp Sensor 1
Indoor Uni
t
Cool Water
Inlet
Power cord of booster heater
Other
Thermal
System
Other Thermal sensor (less than 5 meters)
Joints Dimension
Description Joint pipe thread
Circulating water inlet/outlet of main unit 1″Male BSP
Cooling water inlet of water tank 1/2″Female BSP
Circulating water inlet/outlet of water tank 3/4″Female BSP
Hot water outlet of water tank 1/2″Female BSP
Note:
①
Distance between indoor unit and 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 xed. 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.
1.3.4 Electric Wiring
1�3�4�1 Wiring Principle
General principles
Wires, equipment and connectors supplied for use on the site must be in compliance with provisions of
regulations and engineering requirements.
Only electricians holding qualication are allowed to perform wire connection on the site.
Before connection work is started, the power supply must be shut off.
Installer shall be responsible for any damage due to incorrect connection of the external circuit of the unit.
Caution --- MUST use copper wires.
Connection of power cable to the electric cabinet of the unit
Power cables should be laid out through cabling trough, conduit tube or cable channel.
Power cables to be connected into the electric cabinet must be protected with rubber or plastic to prevent
scratch by edge of metal plate.
Power cables close to the electric cabinet of the unit must be xed reliably to make the power terminal in
the cabinet free from an external force.
Power cable must be grounded reliably.