LG ARUM072BTE5 Installation Manual page 113

Leak / Pressure Test for Systems Designed for Heat Pump Operation.
Gauge Manifold
Nitrogen Gas
Cylinder
Farthest slave outdoor unit is the slave outdoor unit installed farthest away from the refrigerant
piping system / indoor units.
Leak / Pressure Test for Systems Designed for Heat Recovery Operation.
Gauge Manifold
Nitrogen Gas
Cylinder
Gauge Manifold
Nitrogen Gas
Cylinder
Farthest slave outdoor unit is the slave outdoor unit installed farthest away from the refrigerant piping
system / indoor units / heat recovery units.
Farthest Slave Outdoor Unit
Schrader
Port
Schrader
Open
Port
Closed
Service
Port
Closed
Service
Port
Closed
Farthest Slave Outdoor Unit
Schrader
Schrader
Port
Port
Schrader
Open
Open
Port
Open
Service
Port
Service
Closed
Port
Service
Closed
Port
Closed
Due to our policy of continuous product innovation, some specifications may change without notification.
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PRE-COMMISSIONING
Triple Leak / Pressure Check
Master Outdoor Unit
Schrader Schrader
Port and
Port
Service
Open
Port
Closed
Service
Schrader
Port
Port and
Closed
Service
Port
Closed
Master Outdoor Unit
Schrader
Schrader
Port
Schrader
Port
Closed
Port
Closed
Service
Closed
Port
Closed
Service
Service
Port
Port
Closed
Closed
Schrader
Port and
Service
Port
Closed
Liquid Pipe
Indoor
Vapor Pipe
Liquid Pipe
Heat
Recovery
Unit
Vapor
Pipe
Unit
Indoor
Unit
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