Samsung DVM PLUS III Technical Data Book page 716

06_Installation(02~45) 3/15/08 4:34
Installation
DVM PLUS III, DVM PLUS III HR
1
1
1-6. Wiring works
1) External connection diagram of DVM PLUS III
(1) 3 phase 4 wires
3 phase 4wires
(380~415V)
Main unit
MCCB
ELB
Communication cable
Earth
between the outdoor units
Indoor unit power supply
MCCB
ELB
Wired
remote
controller
(2) 3 phase 3 wires
3 phase
1 phase
3 wires
2 wires
(380~415V)
(220~240V)
Main unit
MCCB MCCB
ELB ELB
Earth
Indoor unit power supply
MCCB
ELB
Wired
remote
controller
VI-14
Page 14
Sub unit 1 Sub unit 2
Communication cable
to the indoor units
Pull box
Earth Earth
Sub unit 1 Sub unit 2
Communication cable
between the outdoor units
Communication cable
to the indoor units
Pull box
Earth Earth
Main unit
OF1 OF2 R S T N
Communication cable
Communication cable
from the indoor units between the outdoor units
Earth
C C C C a a a a u u u u t t t t i i i i o o o o n n n n
This line should be removed to protect it from a
short circuit. (Field wiring work)
Main unit
OF1 OF2 R S T N
Communication cable
Communication cable
from the indoor units between the outdoor units
Earth
Sub unit
OF1 OF2
R S T N
Sub unit
OF1 OF2 R S T N
1 phase 2 wires
(220~240V)