Gree NRQD16G/A-S - Page 9

Hot water converter of GMV5 Home Installation and Operation Manual
6
Fig. 5.2
Notes:
① Prepare materials according to the above dimension and specification of terminals. If the cut off valve is
installed outdoors, it is recommended to use PPR pipe to avoid freezing.
② Install the water pipelines only after well fixing the hot water converter. During connecting the pips, prevent
dust or other sundries from entering into the pipeline system.
③ Hot water is supplied by thermal insulating pressure bearing water tank through the pressure of tap water,
thus hot water can be acquired only there is tap water.
④ Keep the cut-off valve in cooling water inlet of water tank open when using the unit.
⑤ When user won’t use the unit for a long time, the unit should be de-energized and the water inside water tank
should be drained to avoid freeze of unit in cold weather.
5.1.3 Requirements for Refrigerant Connecting Pipe between ODU and Hot Water
Converter
Outdoor unit and hot water converter are connected via refrigerant pipe
Refrigerant pipe
Diameter (mm)
Length≤d(m)
Connecting method
Air pipe
15.9
10
Horn mouth
Liquid pipe
9.5
10
Horn mouth
High-pressure air pipe
12.7
10
Horn mouth
5.1.4 Specification for Interface of Water Tank
Hot water converter and water tank are connected via copper tube.
Specification of Interface
Model
Name
Thread of Interface
Remarks
Hot water converter
High pressure air pipe
12.7mm
Connected via
copper tube with
different
diameters
Liquid pipe
9.5mm
Water tank
High pressure air pipe
9.5mm
Liquid pipe
6.4mm
Cooling water inlet of water tank
G1/2
Hot water inlet of water tank
G1/2
Drain outlet of water tank
G1/2
Copyright 2018. This translation is property of GREE PRODUCTS SL. All rights reserved. Total or partial reproduction without its express authorization is prohibited.