7
A Series Inverter Modular Air-cooled Chiller (Heat Pump)
When one water pump get faulty, the other will be turned on to ensure stable operation of the unit, thus
improving the unit adaptability.
1.2 Principle diagrams
(1) LSQWRF35VM/NhA-M
High-pressure switch
COOL
HEAT
Discharge temp.sensor
Compressor
4-way valve
Finned heat exchanger
Electric expansion valve
Vapor-l iquid separator
High pressure sensor
Defrosting
temp.
Suction
temp.
Leaving water
temp.s enso
r
Capillary tube
Solenoid valve
Stop valve
Stop valve
Water flow
switch
Shell-an d-t ube heat exchanger
Low-pressure switch for heating
Low-pressure switch for cooling
sensor
sensor
Safety valve
Ambient
temp. sensor
Freeze protection
temp. sensor
Entering water
temp. sensor
Shell-and-tube
outlet temp. sensor
Shell-and-tube
inlet temp. sensor
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