GMV DC Inverter VRF
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② Specification of power cord is based on the working condition where ambient temperature is
40℃ and multi-core copper cable with working temperature of 90℃ is lying on the surface of
slot. If working condition changes, please adjust the specification according to national
standard.
③ Copper-core cable which complies with local regulations must be applied.
④ The engineering wiring should meet IEC 60364-5-52 regulations. Ensure that the circuit
voltage drop meets the requirements and the voltage of the equipment is not lower than the
lower declared limit of the equipment.
⑤ Specification of circuit breaker is based on the working condition where ambient temperature
of circuit breaker is 40℃. If working condition changes, please adjust according to the circuit
breaker specification.
⑥ The circuit breaker should include magnetic trip function and thermal trip function so that
system can be protected from short circuit and overload.
⑦ An all-pole disconnection switch having a contact separation of at least 3mm in all poles
should be connected in fixed wiring.
3.8.3 Power Cord Connection
3.8.3.1 Power Cord Installation Procedures
Step 1: Pass the external power cord through the wire-passing rubber gasket of the chassis seal
board, and connect the power cord’s “L1, L2, L3, N, ” to the power wiring board marked with “L1, L2,
L3, N, ” respectively and the grounding screw beside the power wiring board.
Fig.3.8.2
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