installing the unit _33
ENGLISH
Power supply and communication cable configuration
• All wiring, components and materials to be procured on the site must comply with the
applicable local and national codes.
• Install the main power cable and grounding cable through the knock-out hole that is in the
middle (or in the bottom) of the side of the unit and at the bottom of the front of the unit.
• Install the power and communication cable using the cable tube separately.
• Fix a cable tube using a CD connector(Wire conduit) and bushing at the knock-out hole of the
outdoor unit.
• Be sure to install the switch and the fuse to the power line of each equipment.
Specifications of the cable tube
Name Material Description
CD tube PVC
- When the unit is installed indoors
- When the unit is not exposed outdoors because
of concrete construction
Single power cable tube Galvanized steel sheet
- When the unit is installed indoors
- When the unit is exposed outdoors and then the
protection for a power cable is needed
Single vinyl tube for a
power cable
Galvanized steel sheet +
Soft PVC compound
- When the unit is installed indoors
- When the unit is exposed outdoors and then
the protection for a power cable or waterproof
function is needed
Caution for knock-out punching
• Make a knock-out hole by driving in a nail.
• After making a knock-out hole, apply rust resisting paint around the hole.
• Remove all burrs at the edge of the knock-out hole and secure the cable to the
outdoor knock-out using lining and bushing with an electrical insulation such as
rubber and so on.
Connect the power cable using the compressed ring terminal.
In case of putting the
power cable to front
Communication cable
among outdoor units
Earth
Earth
Power cable
Power cable
Communication cable between
indoor and outdoor units
Cable tube
Cable tube
Cable tube
Front side
ELCB
or
MCCB+
ELB
ELCB
ELCB
Earth
CAUTION
CAUTION
DVM PLUS3_IM_E_31180-1.indd 33 2009-10-16 ｿﾀﾈﾄ 2:10:33
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