Samsung AM AXV Series Installation Manual page 40

Electrical wiring work
Communication
cable
Power • ground
cable
<When the module combination is in the tables of "Outdoor unit combination">
Communication
cable
Power • ground
cable
※ Power Supply cords of parts of appliances for outdoor use shall not be lighter than polychloroprene sheathed flexible cord. (Code
designation IEC:60245 IEC 66 / CENELEC: H07RN-F)
Specification of the protection tube
Name Temper grade
Flexible PVC
PVC
conduit
Class 1 flexible Galvanized
conduit steel sheet
Galvanized
Class 1 PVC
steel sheet
coated flexible
and Soft PVC
conduit
compound
CAUTION
• Caution for perforating the knock-out hole
• Perforate a knock-out hole by punching it with a hammer.
40
English
Main unit
ELCB
or
MCCB+
ELB
Ground cable
Communication
cable between
Power cable outdoor units
Main unit
Ground cable
Communication
cable between
Power cable outdoor units
Applicable conditions
When the protection tube
is installed indoor and not
exposed to outside, because it is
embedded in concrete structure
When the protection tube is
installed indoor but exposed
to outside so there are risk of
damage to the protection tube
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
Sub unit
ELCB
or
MCCB+
ELB
Ground cable
Communication
cable between
Power cable outdoor units
Sub unit
Ground cable
Communication
cable between
Power cable outdoor units
• 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.
• Caution for installing communication cable
• When you connect the cable, it may sag and pressed by other
parts. Therefore cables should be fixed to a clamp highlighted
with a box on the illustration.
Sub unit
ELCB
or
MCCB+
ELB
Protection
tube
Ground cable
Power cable
Sub unit
ELCB
or
MCCB+
ELB
Protection
tube
Ground cable
Power cable
Path for arranging external
communication cable
Fixing location of the external
communication cable