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5. How to connect the pipe line.
Protect with wet
towel when welding
Liquid pipe (welding)
❇ When installing MCU, use the pattern sheet for installation that is provided with the product.
❇ When welding the gas pipes, protect the product with the flame-proof sheet.
❇ When connecting the MCU with outdoor units, default direction is set in the MCU.
If installing opposite direction, weld the enclosed copper cap in each high pressure, low pressure and liquid pipes.
6. How to connet Y-connector
In case of connecting one indoor with Y-Connector to MCU, Y-Connector must be connected in series.
Indoor #1Indoor #2
<Good Example of connection>
70 mm
Pipe connection to indoor unit
Gas pipe (welding)
Pipe connection from outdoor unit
← Default installing direction.
Low pressure gas pipe conection (welding)
High pressure gas pipe connection (welding)
Liquid pipe connection (welding)
<No Good Example of connection>
AHU
13
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