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GREE GMV5 HR HEAT RECOVERY UNITS
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(2) Four-way valve: While this valve is normally running, the four copper pipes connected to it will
suffer different temperature. When a unit switches to act the valve, you will feel obvious
vibration and hear sound.
Labels on the 4-way valve and their meanings: D
– connects to exhaust; E – connects to IDU
evaporator; S
– connects to intake of gas separator; C – connects to condenser. When the system is
cooling, the pipe at side C works at high pressure high temperature, the pipes at sides E and S work at
low pressure low temperature; when the system is heating, the pipe at side E works at high pressure
high temperature, the pipes at sides C and S work at low pressure low temperature. The pipe at side D
connects to exhaust and it is always working at high pressure high temperature. When units are starting,
defrosting, or returning oil, the valve will vibrate obviously. DO NOT touch the pipe; or, you may be
scalded.
Содержание GC201808-III
Страница 36: ...GREE GMV5 HR HEAT RECOVERY UNITS 32 Circuit diagram of GMV Q144WM B1 F U Circuit diagram of GMV Q168WM B1 F U ...
Страница 87: ...GREE GMV5 HR HEAT RECOVERY UNITS 83 1 External Connection for Individual Units ...
Страница 92: ...GREE GMV5 HR HEAT RECOVERY UNITS 88 ...
Страница 227: ...GREE GMV5 HR HEAT RECOVERY UNITS 223 Troubleshooting ...
Страница 286: ...GREE GMV5 HR HEAT RECOVERY UNITS 282 Troubleshooting ...
Страница 314: ...GREE GMV5 HR HEAT RECOVERY UNITS 310 4 Loosen the screws on the compressor drive as shown in the figure below ...
Страница 362: ...JF00302879 ...