Hitachi PC-ARFP1E - FUNCTION SELECTION AND SETTING; Function and Input;Output Selection

3 ELECTRICAL WIRING

DANGER
Always make sure to turn off the power of the indoor unit when performing electrical wiring work.
Performing electrical wiring work with the power turned on can damage the circuit boards of the
indoor unit and the remote control switch.
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 NOTE
 8se a 0. to 0.5 mm
2
cable for connection. The maximum total cable length is 0 m. If the total
cable length exceeds 0 m, use a twist pair cable with shield tube 1P - 0.5 mm
2
. In that case, the
maximum total cable length is 500 m. The use of cables other than those speci¿ed above can cause
malfunction due to the effect of noise.
 Keep a clearance of more than 0 cm between the transmission line remote control switch cable
and transmission wires and the power source of indoor units. Otherwise, the air-conditioner may not
operate properly or malfunction may occur due to the effect of power source noise.
 5efer to the documentation provided with each unit when performing electrical wiring work between
the remote control switch and indoor units, for the proper setting of refrigerant cycle number and indoor
unit address.
 No gap shall exist between the remote control switch cable and the hole of the remote control switch
case. If there is a gap, cover the gap with vinyl tape. Otherwise, malfunction may occur due to the
entrance of water droplets or insects.
 In case of operating with two remote control switches 0ain and Sub, set the main and sub remote
control switches by selecting the appropriate function with the remote control switches following the
contents of Function selection and setting chapter. 8pon completion of settings, turn off the power
supply of all the indoor unit connected to the remote control switches.
 The control timer cannot be used together with this remote control switch.
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PMML0495 rev.1 - 11/2018 3
EN