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Electronic Works (Continued)
24
E-
Select the power cable in accordance with relevant local and national
regulations.
Wire size must comply with local and national code.
For the power cable, use the grade of H07RN-F or H05RN-F materials.
You should connect the power cable into the power cable terminal
and fasten it with a clamp.
The unbalanced power must be maintained within 10% of supply rat-
ing among whole indoor units.
If the power is unbalanced greatly, it may shorten the life of the
condenser. If the unbalanced power is exceeded over 10% 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 units in the
iron pipe.
Connect the power cable to the auxiliary circuit breaker.
An all pole disconnection from the power supply must be incorporated
in the fixed wiring(≥3mm).
You must keep the cable in a protection tube.
Keep distances of 50mm or more between power cable and
communication cable.
Maximum length of power cables are decided within 10% of power
drop. If it exceeds, you must consider another power supplying
method.
The circuit breaker(MCCB, ELB) should be considered more capacity
if many indoor units are connected from one breaker.
Use round pressure terminal for connections to the power terminal
block.
For wiring, use the designated power cable and connect it firmly,
then secure to prevent outside pressure being exerted on the terminal
board.
Use an appropriate screwdriver for tightening the terminal screws.
A screwdriver with a small head will strip the head and make proper
tightening impossible.
Over-tightening the terminal screws may break them.
See the table below for tightening torque for the terminal screws.
Tightening torque(kgf
M 4
12.0~14.7
cm)
•
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