Hitachi RCD-0.8FSN3 Installation And Operation Manual page 37

ELECTRICAL WIRING
17.2.4
The electrical wiring capacity of the outdoor unit should be referred according to Installation and Operation Manual of the outdoor
unit. Dip switch setting may be required depending on the combination with the outdoor unit.
control cable length between the outdoor unit and the indoor unit shall be less than 75m.
Remote control switch cable (Field supplied)
Shielded twist pair cable 0.75mm
does not need any polarity. Do not apply an
voltage: 5V)
*
*
Main
switch
*
Earth wiring
Power source cable
Pay attention to the phase of
power source when wiring.
(*)The details of wire, ELB, CB and main switch for outdoor unit shall be referred
to Installation and Operation Manual of connected outdoor unit.
•
*
Main
*
Main switch
switch
Outdoor unit
Earth
*
wiring
Power source cable
Control cable
Pay attention to the
phase of power source
Shielded twist pair cable 0.75mm
when wiring.
This cable does not need any polarity.
this cable. (Rated voltage: 5V)
Connect to both ends of shield tube to earth.
29 PMML0416A rev.0 - 12/2015 - P5415720
Case A
Remote control switch
(Option)
2 . This cable
Earth wiring
Control cable
Shielded twist pair cable 0.75mm 2 .
This cable does not need any polarity.
to this cable. (Rated voltage: 5V)
Remote
control switch
*
(Option)
Indoor unit number 1
2
*
*
Main
switch
*
Power source cable
Control cable
Pay attention to
Shielded twist pair cable 0.75mm
the phase of power
This cable does not need
source when wiring.
any polarity. Do not apply an
this cable. (Rated voltage: 5V)
Connect both ends of shield tube
to earth.
Indoor unit number 2 Indoor unit number 3
Remote control switch cable (Field supplied)
2 core twist pair cable 0.75mm 2 . This cable
does not need any polarity. Do not apply an
(Rated voltage: 5V)
Connect to both ends of shield tube to earth.
Case B
*
Remote control switch
(Option)
Remote control switch cable
(Field supplied)
2
Shielded twist pair cable
0.75mm 2 . This cable does not
need any polarity. Do not apply
this cable. (Rated voltage: 5V)
Connect both ends of shield
tube to earth.
Indoor unit number 4
* The details of wire, ELB, CB and main
switch for outdoor unit shall be referred
to Installation and Operation Manual of
connected outdoor unit.