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Technical data
Service manual
424
REYQ8~20+REMQ5U7Y1B
VRV IV+ Heat Recovery
ESIE18-15B – 2020.05
Y1E
Superheat Control (when heat exchanger is evaporator) or Subcool Control (when
heat exchanger is condenser)
Y2E
Superheat control
Y3E
Superheat Control (when heat exchanger is evaporator) or Subcool Control (when
heat exchanger is condenser)
Y4E
Gas Purge Control
Y5E
Heat Sink Cooling Control
Y2S
ON
Y3S
OFF
Y4S
ON (Lower heat exchanger is evaporator)
Y5S
OFF (Upper heat exchanger is condenser)
Summary of Contents for VRV IV+
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