Gree HLR8WZNa-M - Water Piping Work; Electric Wiring Work

24
Mini Chiller
Service Manual
2 WATER PIPING WORK
2.1 Installation Procedure
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the outdoor unit please refer to the outdoor unit installation manual.
The units are equipped with a water inlet and water outlet for connection to a water circuit, which must be
provided by a licensed technician and must comply with all relevant national regulations.
2.2 Matters of Attention
Air vents must be provided at all high points of the system. The vents should be located at points which are
easily accessible for servicing. An automatic air purge should be used. Check the valve is not tightened too
much so that automatic release of air in the water circuit remains possible.
2.3 Antifreeze
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Freezing Point
ć
(

) 0(32) -5(23) -10(14) -15(5) -20(-4) -30(-22)
Ambient Temperature
ć
(

) 8.3(47) 3.3(38) -1.7(29) -6.7(20) -11.7(11) -16.7(2)
Cooling Capacity Correction Factor 1.0 0.985 0.980 0.974 0.970 0.965
Water Flow Correction Factor 1.0 1.02 1.04 1.075 1.11 1.14
Pressure Drop Correction Factor 1.0 1.07 1.11 1.18 1.22 1.24
3 ELECTRIC WIRING WORK
3.1 Wiring Principle
POWER SUPPLY — The electrical characteristics of the available power supply must agree with the unit
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FIELD POWER CONNECTIONS — All power wiring must comply with applicable local and national codes.
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must be located within sight and readily accessible.
3.2 SPECIFICATION OF POWER CORD & AIR SWITCH
Model
Power Supply
(V,Ph,Hz)
Capability of Air
Switch (A)
Minimum Sectional Area
of Earth Wire (mm
2
)
Minimum Sectional Area
of Power Cord (mm
2
)
HLR8WZNa-M 380~415,3,50 10 1.0 1.0
HLR10WZNa-M 380~415,3,50 13 1.5 1.5
HLR12.5WZNa-M 380-415,3,50 16 1.5 1.5
HLR15WZNa-M 380-415,3,50 16 1.5 1.5
HLR22SNa-M 380-415,3,50 32 4 4
HLR25SNa-M 380-415,3,50 25 2.5 2.5
HLR35SNa-M 380-415,3,50 32 4 4
HLR45SNa-M 380-415,3,50 50 10 10
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