Hitachi RPC-1.5FSR Installations- Und Betriebshandbuch Seite 66

ELECTRICAL WIRING
• Example of Wiring Connection (Twin, Triple and Quad Combinations for Simultaneous Operation)
Main switch
Outdoor unit
Main
switch
Earth
wiring
Power source cable
Pay attention to the
phase of power source
when wiring.
Do not apply an excessively high voltage to
Connect to both ends of shield tube to earth.
• Example of Wiring Connection (Twin, Triple and Quad Combinations for Individual Operation)
Main switch
Main Outdoor unit
switch
Earth
wiring
Power source cable
Pay attention to the
phase of power source
Shielded twist pair cable 0.75mm
when wiring.
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
Model ELB
(n/A/mA)
Combination
*1
Single type
2/40/30
Twin, Triple, Quad
ELB: Earth Leakage Breaker; CB: Circuit Breaker; IU: Indoor unit; OU: Outdoor unit
?
N O T E
For the total wiring length more than 20m, refer to Installation and Operation Manual of the outdoor unit.
26 PMML0551 rev.1 - 02/2021 - A10762310A
Remote control switch
(Option)
Indoor unit number 1
Pull box
Control cable
Shielded twist pair cable 0.75mm
2
This cable does not need any polarity.
this cable. (Rated voltage: 5V)
Remote control
switch (Option)
Indoor unit number 1
Pull box
Control cable
2
Do not apply an excessively high voltage to this
earth.
Main switch CB (Fuse)
Rated Rated
current (A) current (A)
*2 *2
5 5
Indoor unit number 2
Pull box
Remote control switch cable (Field supplied)
2 core twist pair cable 0.75mm
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)
Indoor unit number 2
Indoor unit number 3
Pull box
Remote control switch cable
(Field supplied)
2 core twist pair cable 0.75mm
This cable does not need any polarity.
cable. (Rated voltage: 5V)
Connect to both ends of shield tube to earth.
Transition wiring between OU and IU
Power
source cable
Power supply
*3 *6 < 20m *4
0.75
1.0
1.0
Indoor unit number 3 Indoor unit number 4
Pull box
. This cable
2
The details of wire, ELB, CB and
main switch for outdoor unit shall be
referred to Installation and Operation
Manual of connected outdoor unit.
Remote control
switch (Option)
Indoor unit number 4
Pull box
The details of wire, ELB, CB
and main switch for outdoor unit
2
shall be referred to Installation
and Operation Manual of
connected outdoor unit.
Wiring size (mm )
2
Earth
wiring
Control circuit *5
*7
0.75
0.75
1.0
Remote control
switch (Option)
Remote
control
switch cable
*8
0.75