Hitachi RPC-1.5FSR - Page 42

• Example of Wiring Connection (Twin, Triple and Quad Combinations for Simultaneous Operation)
Control cable
Shielded twist pair cable 0.75 mm
2
This cable does not need any polarity.
Do not apply an excessively high voltage to
this cable. (Rated voltage: 5V)
Connect to both ends of shield tube to earth.
Remote control switch
(Option)
Outdoor unit
Indoor unit number 1
Main
switch
Power source cable
Pay attention to the
phase of power source
when wiring.
Indoor unit number 4
Indoor unit number 3
Indoor unit number 2
Main switch
Pull box
Remote control switch cable (Field supplied)
2 core twist pair cable 0.75 mm
2
. This cable
does not need any polarity. Do not apply an
excessively high voltage to this cable.
(Rated voltage: 5V)
Connect to both ends of shield tube to earth.
The details of wire, ELB, CB and
main switch for outdoor unit shall be
referred to Installation and Operation
Manual of connected outdoor unit.
Pull box Pull box
Earth
wiring
• Example of Wiring Connection (Twin, Triple and Quad Combinations for Individual Operation)
Remote control
switch (Option)
Outdoor unit Indoor unit number 1Main
switch
Power source cable
Pay attention to the
phase of power source
when wiring.
Indoor unit number 4
Indoor unit number 3
Indoor unit number 2
Main switch
Pull box
Remote control switch cable
(Field supplied)
2 core twist pair cable 0.75 mm
2
This cable does not need any polarity.
Do not apply an excessively high voltage to this
cable. (Rated voltage: 5V)
Connect to both ends of shield tube to earth.
The details of wire, ELB, CB
and main switch for outdoor unit
shall be referred to Installation
and Operation Manual of
connected outdoor unit.
Pull box
Pull box
Remote control
switch (Option)
Remote control
switch (Option)
Control cable
Shielded twist pair cable 0.75 mm
2
This cable does not need any polarity.
Do not apply an excessively high voltage
to this cable. (Rated voltage: 5V)
Connect to both ends of shield tube to
earth.
Remote control
switch (Option)
Earth
wiring
Model ELB Main switch CB (Fuse) Wiring size (mm
2
)
Combination
(n/A/mA)
Rated
current (A)
Rated
current (A)
Power
source cable
Transition wiring between OU and IU
Earth
wiring
*7
Remote
control
switch cable
*8
Power supply
Control circuit *5
*1 *2 *2 *3 *6 < 20m *4
Single type
2/40/30 5 5
0.75
1.0 0.75
0.75
0.75
Twin, Triple, Quad 1.0 1.0
ELB: Earth Leakage Breaker; CB: Circuit Breaker; IU: Indoor unit; OU: Outdoor unit
? NOTE
For the total wiring length more than 20m, refer to Installation and Operation Manual of the outdoor unit.
ELECTRICAL WIRING
PMML0551 rev.4 - 07/2023 - A10762310A
26