Power Supply And Communication Cable Configuration; Specifications Of The Cable Tube - Samsung RD080HRXGB Installation Manual

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.
Communication cable
Power·
Earth cable
High/Low
pressure pipe
Oil balancing pipe
(Only for module installation)

Specifications of the cable tube

Name
CD tube
Single power cable tube
Single vinyl tube for a
power cable
Caution for knock-out punching
• Make a knock-out hole by driving in a nail.
CAUTION
• After making a knock-out hole, apply rust resisting paint around the hole.
• R emove 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.
CAUTION
36_ installing the unit
Main unit
Front side
Earth
Earth
Communication
Power
cable among
cable
outdoor units
Material
PVC
Galvanized steel sheet
Galvanized steel sheet +
Soft PVC compound
Sub unit Sub unit
Earth
Communication cable
Power
between indoor and
cable
outdoor units
Description
- When the unit is installed indoors
- When the unit is not exposed outdoors because
of concrete construction
- When the unit is installed indoors
- When the unit is exposed outdoors and then the
protection for a power cable is needed
- 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
or
ELCB
MCCB+
ELB
Cable tube
Power cable