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Electrical wiring work
32
English
Example of exposed core wire
Insulator
(inner cover)
Exposed
wire core
Sheath (outer cover)
• Do not use the power cable with the core wire
exposed due to insulator damage occurred during
removal of the sheath. When the core wire is exposed,
it may cause fire.
Power and communication cable configuration
f
Main power and the ground cable must be withdrawn through the knock-out hole on the bottom-right corner of
the front side.
f
Withdraw the communication cable from the designated knock-out hole on the bottom-right corner of the front or
side.
f
Install the power and communication cable using separate cable protection tube.
f
Refer to page 33 and 34 for connecting power and communication cable.
Specification of the protection tube
name
temper grade
applicable conditions
CD conduit
PVC
When the protection tube is installed indoor and not exposed to
outside, because it is embedded in concrete structure
Class 1 flexible conduit Galvanized steel sheet
When the protection tube is installed indoor but exposed to outside
so there are risk of damage to the protection tube
Class 1 PVC coated
flexible conduit
Galvanized steel
sheet and Soft PVC
compound
When the protection tube is installed outdoor and exposed to
outside so there are risk of damage to the protection tube and extra
waterproof is needed
CaUtIon
Caution for perforating the knock-out hole
• Perforate a knock-out hole by punching it with a hammer.
• After perforating the knock-out hole, apply rust resisting paint around the hole.
• When you need to pass the cables through the knock-out hole, remove burrs on the hole and protection the
cable with a protection tape or bushing etc.
• Use ELCB that has harmonic wave prevent function since the product uses inverter compressor.
DB68-05916A-09_IM_DVM Chiller Outdoor_EU_EN_.indd 32
2022-05-02 오전 9:00:02
