LG ARUM072BTE5 Installation Manual page 116

PRE-COMMISSIONING
Triple Evacuation Procedure
Triple Evacuation Diagram for Heat Pump Systems.
Gauge Manifold
Vacuum
Pump
Farthest slave outdoor unit is the slave outdoor unit installed farthest away from the refrigerant piping
system / indoor units.
Triple Evacuation Diagram for Heat Recovery Systems.
Gauge Manifold
Vacuum
Pump
Gauge Manifold
Vacuum
Pump
Farthest slave outdoor unit is the slave outdoor unit installed farthest away from
the refrigerant piping system / indoor units / heat recovery units.
116
Farthest Slave Outdoor Unit
Schrader
Port
Schrader
Open
Schrader
Port
Port
Open
Service
Closed
Port
Closed
Service
Service
Port
Port
Closed
Closed
Farthest Slave Outdoor Unit
Schrader
Port
Schrader
Open
Port
Schrader
Open
Port
Open
Service
Port
Service
Closed
Port
Closed
Service
Port
Closed
Due to our policy of continuous product innovation, some specifications may change without notification.
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Master Outdoor Unit
Schrader
Port and
Service
Port
Closed
Schrader
Port and
Service
Port
Closed
Schrader
Port and
Service
Port
Closed
Master Outdoor Unit
Schrader
Port and
Service
Port
Closed
Schrader
Port and
Service
Port
Schrader
Closed
Port and
Service
Port
Closed
Liquid Side
Indoor Unit
Vapor Pipe
Liquid Side
Heat
Indoor Unit
Recovery
Unit
Suction (Low
Pressure
Vapor)
Pipe