10
Energy Recovery Ventilation System
(3) Applicable models: FHBQG-D25B-M, FHBQG-D30B-M, FHBQG-D40B-M, FHBQG-D50B-M,
FHBQG-D60B-M
Power
3.2 Wiring requirements
(1) All of the electric installation must be performed by qualied technicians according to local laws and
regulations and instructions.
(2) The power supply must be under rated voltage and used especially for this product.
(3) The power supply should be reliable to prevent terminals from being stressed. Never pull the power
cord forcibly.
(4) Size of the power supply lines must be large enough. The broken power line should be replaced
with the dedicated line.
(5) Ground wires should be reliably connected with dedicated grounding devices.
(6) Air switch and leakage switch which can cut o the general power supply should be installed.
(7) The air switch should integrate the functions of magnetic release and hot release to protect it for
short circuit or overload.
(8) The eld wiring should be subject to circuit diagram attached on the unit.
Applied models Power supply Capacity of air switch (A)
Min. sectional area of power
supply line (mm
2
)
FHBQG-D3.5B-K 220V ~ 50Hz 6 1.0
FHBQG-D5B-K 220V ~ 50Hz 6 1.0
FHBQG-D6.5B-K 220V ~ 50Hz 6 1.0
FHBQG-D8B-K 220V ~ 50Hz 6 1.0