User manual

10
Installation Procedure
English
Installation Procedure
Connecting the main power cable
When using ELB for 1 phase and 3 phase
1(L) 2(N) L1(R) L2(S) L3(T) N
F1 F2
1(L) 2(N) L N
F1 F2
MCCB
ELB
Power supply
Electrical
component box
The appearance of the unit may be
different from the picture depending
on the model.
Indoor Unit
1-phase
3-phase
Main power
cable
Communication cable
Communication
cable
3-phase 4-wire
main power cable
(AC 380V)
Outdoor-to-
indoor power
cable
Outdoor-to-
indoor power
cable
Cable tie
Cable tie
CAUTION
• You should connect the power cable into the power cable terminal and fasten it with a clamp.
• The unbalanced power must be maintained within 2% of supply rating.
If the power is unbalanced greatly, it may shorten the life of the condenser. If the unbalanced power is
exceeded over 4% of supply rating, the indoor unit is protected, stopped and the error mode indicates.
• To protect the product from water and possible shock, you should keep the power cable and the connection cord of
the indoor and outdoor units within ducts. (with appropriate IP rating and material selection for your application)
• Ensure that main supply connection is made through a switch that disconnects all poles, with contact gap of a least 3 mm.
• Devices disconnected from the power supply should be completely disconnected in the condition of overvoltage category.
• Keep distances of 50 mm or more between power cable and communication cable.