36_
installing the unit
installing the unit
WIRING WORK
Power supply and communication cable configuration
•
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.
or
MCCB+
ELB
Main unit
Sub unit
Sub unit
Communication
cable among
outdoor units
Communication cable
between indoor and
outdoor units
Front side
Cable tube
Power
cable
Power
cable
Power cable
Earth
Earth
Earth
ELCB
Communication cable
Oil balancing pipe
(Only for module installation)
Power·
Earth cable
High/Low
pressure pipe
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.
CAUTION
Connect the power cable using the compressed ring terminal.
CAUTION
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2011-10-25 오후 2:57:55
