Installation
91
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.
4.9 Electric Wiring
(1)
Wiring diagram: indoor unit
GRS-CQ8.0Pd/NaE-K(I),GRS-CQ10Pd/NaE-K(I) ,GRS-CQ12Pd/NaE-K(I) ,GRS-CQ14Pd/NaE
-K(I) ,GRS-CQ16Pd/NaE-K(I)
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