Gree GC201808-III, Service Manual

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GREE GMV5 HR HEAT RECOVERY UNITS
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2.3 Piping Diagram of GMV-Q168WM/B1-F(U)
2.4 Names and Main Functions of Components
No. Name Main Function
1 Compressor
Adjusts its own rotational speed based on the actual
requirement of the system to implement capacity control.
2 Compressor heat tape
Maintains a proper oil temperature in the compressor when the
compressor is in standby status, ensuring the reliability during
compressor startup.
3
Compressor casing-top temperature
sensor Detects a compressor's exhaust gas temperature for
compressor control and protection.
4
Exhaust pipe temperature sensor of
compressor Detects a compressor's exhaust gas temperature for
compressor control and protection.
5 High-pressure circuit breaker
Protects a compressor by sending feedback signal to stop the
system when the compressor's discharge temperature exceeds
the operating value of high-pressure circuit breaker.
6 Oil extractor
Separates the gas and oil in the system to ensure compressor
reliability.
7 Oil temperature sensor Detect the oil return temperature of compressor
8 One-way valve
Prevents high-pressure gas from entering the compressor and
fast balances the suction pressure and discharge pressure in a
compressor.
9 High-pressure sensor
Detects the high pressure value in the system in real time mode
for compressor protection and other control functions.