Installation manual

[ VII Control ]
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HWE10050 GB
(2) Defrost operation
(3) Stopping the defrost operation
The defrost cycle ends when 12 minutes have passed since the beginning of the cycle, or when the pipe temperature (TH3
and TH6) has been continuously detected for 2 minutes that exceeds the values in the table below
Defrost operation will not stop its operation for 4 minutes once started.
In the multiple-outdoor-unit system, defrosting is stopped on all units at the same time.
(4) Problems during defrost operation
If a problem is detected during defrost operation, the operation will be stopped, and the defrost prohibition time based on the
integrated compressor operation time will be set to 50 minutes.
(5) Change in the number of operating indoor units during defrost operation
Even when there is a change in the number of operating indoor units during defrost operation, the operation will continue, and
an adjustment will be made after the completion of the defrost operation.
Defrost operation will be continued, even if the indoor units stop or under the Thermo-OFF conditions until it has run its course.
Outdoou unit Compressor frequency Model Compressor frequency
P200 - P300, EP200 models 65 Hz
P350, P400, EP250, EP300 models 103 Hz
P450, EP350 models 103 Hz
Outdoor unit fan Stopped
SV1a ON (open)
SV2 P200 - P400, EP200 - EP300 models: ON (open)
P450, EP350 models: N/A
SV5b ON (close)
SV5c P200 - P400, EP200 - EP300 models: ON (closed)
P450, EP350 models: ON (open)
21S4a, 21S4b OFF
SV9 OFF (closed)
BC controller LEV1 G1 type: 4000, GA1 type: 6000, HA1 type: 8000
LEV3 G1 type: 1000, GA1 type: 2000, HA1 type: 2000
GB1, HB1 type: 60 (full closed)
SVM1 ON
SVM2 OFF
SVM1b ON
SVM2b OFF
SV B OFF
SV A Ports that are connected to the indoor units in cooling Thermo-ON
Other ports : OFF
Model
TH3
SW3 - 3 OFF SW3 - 3 ON
P200 - P300 models 10°C [50°F] 15°C [59°F]
P300 model 10°C [50°F] 15°C [59°F]
P350, P400 models 7°C [45°F] 12°C [54°F]
P450 model 7°C [45°F] 12°C [54°F]
EP200 model 10°C [50°F] 15°C [59°F]
EP250, EP300 models 7°C [45°F] 12°C [54°F]
EP350 model 7°C [45°F] 12°C [54°F]