Hitachi RCIM-1.0FSN4 Installations- Und Betriebshandbuch Seite 42

Electrical wiring
?
N O T E
• Check the recommended size of an ELB shown in the table. Select
high-sensitive high speed ELB when the rated sensitive current is
less than 30mA. (The motion time should be within 0.1 second.)
• Use 2-core cable (equivalent to following cables: VCTF, VCT, CVV,
MVVS, VVR or VVF, size: 0.75mm
HITACHI Cable Co. Ltd.)) or 2-core twist pair cable (equivalent to
following cables: KPEV or KPEV-S (manufactured by HITACHI Cable
Co. Ltd.)) for the control cable between the outdoor unit and the
indoor unit. The total cable length should be less than 1000m.
• If the transmission system other than H-LINK is adopted and the
total cable length is 100m or less, cables other than 2-core cable and
2-core twist pair cable can be used.
• Use 2-core twist pair cable (equivalent to following cables: KPEV or
KPEV-S) for the remote control switch cable and the control cable
between indoor units. The total cable length should be less than
500m. If the total length of the cable is less than 30m, other cables
can be used (the cable size is 0.3mm
• Select the wiring size, ELB (Earth Leakage Breaker) and isolating
switch according to the regulation of each region and Installation and
Operation Manual, and the dedicated electrical circuit must be used.
• Outside the indoor unit, the power source cable, control cable and
remote control cable shall be installed separately as possible.
16.4.3 Remote control switch connection
1 Installing wired remote control switch to each unit for
individual operation setting.
Indoor unit
Outdoor
unit
Remote
control
switch
2 Installing one remote control switch to multiple units for
individual operation setting.
Indoor unit
Outdoor
unit
Remote
control
switch
16.5 SETTINGS OF DIP SWITCHES

Quantity and position of dip switches
PCB
DSW9
DSW5
DSW6
32 PMML0363A rev.2 - 08/2016 - P5416559
to 1.25mm (manufactured by
2 2
).
2
Indoor unit
A B A B
Remote
control
switch
Indoor unit
A B A B
The transition wiring
for the remote control
switch is required.
DSW7
RSW2
DSW4
DSW3
RSW1
3 Simultaneous operation (The indoor unit is H-LINK II model.)
Indoor unit
Outdoor
unit
Remote
control
switch
* The simultaneous operation is available up to 4 indoor units.
(This connection is not available for VRF (SET-FREE) System)
4 Installing remote control switch to units in different refrigerant
cycle groups.
Indoor
Indoor
Outdoor
unit
unit
A B A B
unit
Remote control
switch
Individual
Simultaneous
(Thermo ON/OFF individually)
?
N O T E
For individual and simultaneous operation, the dip switch setting of the
outdoor unit is required. Set the dip switches according to Installation and
Operation Manual of the outdoor unit.
?
N O T E
Transition wiring for the remote control switch is required in the following
cases:
• The following functions are set to the sub unit:
- "Remote ON/OFF Function, 1, 2 and 3" (External Input / Output
Function)
- "Power Supply ON/OFF Function, 1 and 2" (Function Selection)
- "Prohibiting Remote Control after Manual Stoppage" (External
Input / Output Function)
- "Group Setting by Centralized Controller"
• The combination of twin, triple or quad is controlled by one remote
control switch.
• The address of the indoor unit is changed from the remote control
switch.
!
C A U T I O N
Before setting dips switches, firstly turn off power source and set the
position of the dips switches. If the switches are set without turning off the
power source, the contents of the setting are invalid.
Indoor unit
A B A B
Indoor Indoor
Outdoor
unit unit
A B
A B
Remote control
Remote control
switch
switch
Individual
unit