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G. Installation (O
2
) Check Control
From the installation check signal release by indoor unit, vacuum pump & 2 way valve is ON continuously for installation fault
detection.
(Pump & valve delay start & delay OFF control is inactive).
detection.
(Pump & valve delay start & delay OFF control is inactive).
H. OD Fan Control (ON or OFF)
1. Oxygen only operation
OD fan is ON or OFF according to Oxygen enrich control.
2. Combined operation with other mode
When combined operation with other mode, OD fan control is as follows;
OD Fan = ON
: If OD fan status is ON in any of the combined operation mode
(except during deice operation of Heating mode)
OD Fan = OFF : i) Deice operation in progress
ii) If OD fans status is OFF in all of the combined operation mode
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