Is there any gas leakage at flare nut
connections?
Has the heat insulation been carried out at
flare nut connection?
Is the connecting cable being fixed to
terminal board firmly?
Is the connecting cable being clamped firmly?
Is the drainage OK?
(Refer to “Check the drainage” section)
Is the earth wire connection properly done?
Is the indoor unit properly hooked to the
installation plate?
Is the power supply voltage complied with
rated value?
Is there any abnormal sound?
Is the cooling operation normal?
Is the thermostat operation normal?
Is the remote control’s LCD operation normal?
Is the air purifying filter installed?
11. 2-way, 3-way Valve
60
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