Gree HLR45SNa-M - Anti-Frozen Notice

Household (Townhouse) Central Air Conditioning Unit
15
1
3
5
4
6
7
8
2
13
16
15
14
12
11
10
9
Connected with
Illustration
1.Air conditioning host
9.Check valve
10.Flowmeter
11.Drainage valve
12.Electric 2-way valve
13.Electric 3-way valve
14.Ball valve
16.Base
15.Auto exhaust valve
2.Fan coil
3.Rubber soft joint
4.Thermometer
5.Pressure meter
6.Cut-off valve
7.By-pass valve
8.Y-shape filter
tap water
Standard Installation Sketch for this Household (Townhouse) Unit
8.4 Anti-frozen Notice
1) To heat pump unit, when it is used at where temperature in winter would below 0
℃
, do conduct heat
preservation with insulation material, and add antifreeze according actual situation.
2) On control system there is auto antifreeze operation set for assisting system. Its principle is: When unit
is at standby state (don’t cut off power), and ambient temperature and system water temperature is at about 0
degree, control system will start water pump and compressor till water temperature reaches safety point.
Thickness of glycol liquid—freezing point list:
Thickness % Freezing point
℃
Thickness % Freezing point
℃
Thickness % Freezing point
℃
4.6 -2 19.8 -10 35 -21
8.4 -4 23.6 -13 38.8 -26
12.2 -5 27.4 -15 42.6 -29
16 -7 31.2 -17 46.4 -33
In the list: Thickness of glycol is mass thickness.