Nominal Operating Conditions; Operation Range; Unit Performance Curves - Gree A Series Service Manual

It is equipped with the top-end microcomputer control system which is capable of providing
well-rounded protection and self-diagnosis.
■ High reliability：
It is constructed of well-designed refrigeration parts and well-designed system, structure
and electric control, adequately guaranteeing reliable operation
■ Remote ON/OFF：
The unit can be started or stopped by the ON/OFF key operation.
■ Equilibrium running：
It indicates each compressor will run alternately so as to extend their service life.
■ Shiftwork of water pumps：
Two water pumps can work alternately with equilibrium runtime so as to extend their service
life and lower the maintenance difficulty.
3.1.4

Nominal Operating Conditions

Item
Cooling
Heat pump
3.1.5

Operation Range

Please run the unit under the specified operation range as shown in the table below:
■ R410A Series
Item
Cooling
Heating
maximum and minimum entering water pressures:
Item
Cooling
Heating
3.2

Unit Performance Curves

Here are curves indicating the unit performances in cooling and heating states.
Water side
Water flow m3/
（h·kW）
0.172
Leaving Water
Temperature（℃）
5～20
35～50
Minimum entering water
A Series Modular-type Air-cooled (Heat Pump) Chiller
Outlet
temparature temperature
（℃）
7
45
Water Side
Water Temperature
Difference（℃）
2.5～6
2.5～6
pressures
0.06MPa
3
Air side
Dry bulb Wet bulb
temperature
（℃）
35
7
Air Side
Ambient DB
Temperature（℃）
–15～52
-20～40
Maximum entering water
pressures
1.6MPa
（℃）
—
6