Fujitsu Airstage VR-II ARUM36TLAV User Manual

< Operating state of each part during defrosting operation >
[ STEP 1 ]
Slave 1 Slave 2
Compressor in operation
Stopped compressor
Defrosting
Master
Slave 1 Slave 2Master
Defrost end
Defrost end
02-13
Defrost end
Slave 1 Slave 2Master
Defrost end
Defrost end
When the defrosting of all outdoor units ends, all outdoorunit stop.
The start rotation excution is done, and restarts
Defrosting Defrosting Defrosting
All compressors sart the operation in defrosting
When one of the heat exchanger reached to the End condition, the expansion valve open pls will be set as smaller pls to
make it easier for refrigerant distribution to another heat exchanger.
[ STEP 2 ]
[ STEP 3 ]
HEX1
HEX1
HEX1
HEX2 HEX2
HEX2
HEX1 HEX1
HEX1
HEX2 HEX2
HEX2
HEX1 HEX1 HEX1
HEX2 HEX2 HEX2
HEX in defrosting
HEX Defrost end
Compressor
Heat Ex(4WV)
FAN
EEV1
EEV2
EEV3
SV1,SV2
All compressor operaiotn Stop
Change Condensor (OFF)
Stops
0 pls
0 pls
Open (Balancing)
All compressor start
Cndensor (OFF)
Stops
EEV1: 300 -> 200 pls
EEV2: 480 -> 330 pls
100 - 500 pls
Close
All compressor operaiotn Stop
Keeps the operation mode
Stops
0 pls
0 pls
Open
Preparation process On Defrost operatiom
Finishing process
Actuator
EEV1: 300 pls
EEV1: 300 pls EEV1: 300 pls
EEV2: 480 pls
EEV2: 480 pls
EEV2: 480 pls
EEV1: 300 pls
EEV2: 480 pls
EEV1: 200 pls
EEV2: 330 pls
EEV1: 200 pls
EEV2: 330 pls
EEV1: 0 pls
EEV2: 0 pls
EEV1: 0 pls
EEV2: 0 pls
EEV1: 0 pls
EEV2: 0 pls

Fujitsu Airstage VR-II ARUM36TLAV Specifications

General

Brand	Fujitsu
Model	Airstage VR-II ARUM36TLAV
Category	Air Conditioner
Language	English