Gree GMV6 DC Inverter VRF Units Service Manual
223
Notes:
① Check whether the coil is firmly fixed.
② Touch the upper part of the electronic expansion valve and check whether the resetting of the
unit can be clearly felt.
2) 4-way valve: When it is normal, the temperature different between it and the four copper tubes
connecting to the valve is obvious. When the 4-way valve works, obvious sound and vibration
can be heard and felt.
Do not touch directly by
hand the position of the
four-way valve in the
unit. High-temperature
refrigerant on the
exhaust side may cause
danger of burning
D - Connecting to
the exhaust side.
Warning: high
temperature!
Marks are made on the 4-way valve: D indicates connection to the exhaust side, E indicates
connection to the IDU evaporator, S indicates connection to the air inlet of gas-liquid separator, C
indicates connection to the condenser; when the system runs in the cooling mode, C indicates that the
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