installing the unit _29
ENGLISH
• Use the provided installation pattern when installing the MCU.
• Use a welding curtain to prevent the unit to get damaged from a welding fire or flame
when the welding for a high pressure gas pipe is made.
• Connect the flange of the low pressure gas pipe to a pipe and then install the flange
to MCU. When installing the MCU, insert the provided O-ring into a gap.
• Wrap the high pressure gas pipe with wet cloth when brazing it.
Installing MCU
Model MCU-X6NEF1 MCU-X4NEF1 MCU-X4VEF1 MCU-X4WEF1
The exterior of MCU
Quantity of the connectable
indoor units
Up to 6 units Up to 4 units Up to 4 units Up to 4 units
The maximum capacity of
the connectable indoor units
152MBH
152MBH
152MBH
152MBH
Built-in EEV
Not included Not included Included Included
Cannot connect
the indoor unit
that EEV is not
included in.
Cannot connect
the indoor unit
that EEV is not
included in.
Can connect the
indoor unit that
EEV is not included
in.(Below 12MBH)
Can connect the
indoor unit that
EEV is not included
in.(Over 18MBH)
Note
• MCU-X4VEF1/MCU-X4WEF1 is supplied with EEV bypass valve located on the front side of
MCU being opened for indoor unit with EEV.
• To connect the indoor units not having EEV, close EEV bypass valve.
Gas pipe connection (Flange)
High pressure gas pipe connection (Brazing)
Liquid pipe connection (Flare)
Gas pipe to indoor unitLiquid pipe to indoor unit
To indoor unit
From outdoor unit
Connecting the pipe
CAUTION
DVM PLUS3 HR_IM_E_32805-2.indd 29 2011-11-11 오후 4:18:26
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