User Manual

E-20
Wiring Work (Continued)
 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
rating 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 outdoor
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.
CAUTION
Tightening torque(kgf • cm)
M 4 12.0~14.7
AVXWV@@_IM_E_29819-1_4.14.09.indd 20 2009-4-14 10:15:50