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UAB KOMFOVENT we reserve the right to make changes without prior notice
RHP PRO_22-01
EN
4. ELECTRICAL INSTALLATION
Only qualified professionals may perform electrical installation works in accordance with the manufacturer’s instructions
and applicable legal acts and safety requirements. Before installation of any electrical components:
•
Make sure the unit is unplugged from the mains.
•
If the unit has been standing in an unheated room for a long time, make sure there is no con-
densation inside and check if contacts and electronic parts of the connectors are not damaged
by moisture.
•
Inspect the power cable ant other wiring for damage in insulation.
•
Locate the wiring diagram for your unit according to the unit type.
4.1. Requirements for Electrical Connection
•
Connect the unit only to a proper power outlet with protective earthing. Earthing must be in-
stalled according to the EN61557, BS 7671 requirements.
•
It is recommended to connect AHU to the mains via automatic circuit breaker with 300 mA cur-
rent leakage protection (type B or B+).
•
Control cables should be installed at least 20 cm away from power cables to reduce the possibil-
ity of electrical interference.
•
All external electrical elements must be connected strictly according to the wiring diagram of
the unit.
•
Do not disconnect the connectors by pulling wires or cables.
Air handling units designed for 400 VAC, 50 Hz supply voltage
1
, connected through the main circuit breaker (QS1 in wir-
ing diagrams).
OFF
ON
1L1
2T1
3L2
5L3
7N
Fig. 30.
Main circuit breaker
1
Depending on the order.
