22
Energy-Recovery Ventilation
System Service Manual
Three phase Units
380V 3N~
Terminal board
AC contactor 1
Fan motor
heat relay
Fan motor
heat relay
Wire
controller
AC contactor 2
Contactor loop 1
Contactor loop 2
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Applied models Power supply
Capacity of air
switch (A)
Min.sectional area of
earthing wire (mm
2
)
Min. sectional area of
power cord (mm
2
)
FHBQ-D3.5-K 220V~,50Hz 6 1.0 1.0
FHBQ-D5-K 220V~,50Hz 6 1.0 1.0
FHBQ-D8-K 220V~,50Hz 6 1.0 1.0
FHBQ-D10-K 220V~,50Hz 6 1.0 1.0
FHBQ-D15-M 380V 3N~,50Hz 6 1.0 1.0
FHBQ-D20-M 380V 3N~,50Hz 6 1.0 1.0
FHBQ-D30-M 380V 3N~,50Hz 6 1.0 1.0
Note:
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value.
b. Increase the sectional area of power cord above 15 meters to avoid overload.