9
7. Electrical work
If the indoor and outdoor units have separate power supplies, refer to the table at the
below. If the optional wiring replacement kit is used, change the indoor unit electrical
box wiring refering to the figure in the right and the DIP switch settings of the outdoor
unit control board.
*1. A breaker with at least 3 mm contact separation in each pole shall be provided. Use non-fuse
breaker (NF) or earth leakage breaker (NV).
*2. <For 25-140 outdoor unit application>
Max. 45 m
If 2.5 mm
2
used, Max. 50 m
If 2.5 mm
2
used and S3 separated, Max. 80 m
For PUHZ-RP100/125/140 YHA application, use shield wires. The shield part must be grounded
with the indoor unit OR the outdoor unit, NOT with both.
<For 200/250 outdoor unit application>
Max. 18 m
If 2.5 mm
2
used, Max. 30 m
If 4 mm
2
used and S3 separated, Max. 50 m
If 6 mm
2
used and S3 separated, Max. 80 m
*3. The 10 m wire is attached in the remote controller accessory. Max. 500 m
*4. The figures are NOT always against the ground.
S3 terminal has DC 24 V against S2 terminal. However between S3 and S1, these terminals
are not electrically insulataed by the transformer or other device.
Notes: 1. Wiring size must comply with the applicable local and national code.
2. Power supply cords and indoor unit/outdoor unit connecting cords
shall not be lighter than polychloroprene sheathed flexible cord.
(Design 245 IEC57)
3. Install an earth longer than other cables.
7.1.2. Separate indoor unit/outdoor unit power supplies (For PUHZ
application only)
The following connection patterns are available.
The outdoor unit power supply patterns vary on models.
1:1 System
<For models without heater>
* The optional wiring replacement kit is required.
A
Outdoor unit power supply
B
Earth leakage breaker
C
Wiring circuit breaker or isolating switch
D
Outdoor unit
E
Indoor unit/outdoor unit connecting cords
F
Remote controller
G
Indoor unit
H
Option
J
Indoor unit power supply
* Affix a label B that is included with the manuals near each wiring diagram for the
indoor and outdoor units.
Simultaneous twin/triple/four system
<For models without heater>
* The optional wiring replacement kits are required.
A
Outdoor unit power supply
B
Earth leakage breaker
C
Wiring circuit breaker or isolating switch
D
Outdoor unit
E
Indoor unit/outdoor unit connecting cords
F
Remote controller
G
Indoor unit
H
Option
J
Indoor unit power supply
* Affix a label B that is included with the manuals near each wiring diagram for the
indoor and outdoor units.
S1
S2
L
N
1
2
L
N
S1
S2
S3
S3
A
C
B
D
J
E
B
C
F
G
H
S1
S2
L
N
1
2
L
N
S1
S2
S3
1
2
L
N
S1
S2
S3
1
2
L
N
S1
S2
S3
1
2
L
N
S1
S2
S3
S3
A
B
C
D
E
J
B
C
F
H
G
G
G
G
Indoor power supply terminal kit (option)
Indoor unit electrical box connector con-
nection change
Label affixed near each wiring diagram
for the indoor and outdoor units
Outdoor unit DIP switch settings (when
using separate indoor unit/outdoor unit
power supplies only)
Indoor unit specifications
Required
Required
Required
* There are three types of labels (labels A, B, and C). Affix the appropriate labels to
the units according to the wiring method.
ON
OFF
1
2
(SW8)
3
7.2. Remote controller
7.2.1. For wired remote controller
1) Installing procedures
(1) Select an installing position for the remote controller. (Fig. 7-2)
The temperature sensors are located on both remote controller and indoor unit.
s
Procure the following parts locally:
Two piece switch box
Conduit tube
Look nuts and bushings
s
Remote controller guide
A
Remote controller profile
B
Required clearances surrounding the remote controller
C
Installation pitch
(2) Seal the service entrance for the remote controller cord with putty to prevent
possible invasion of dew drops, water, cockroaches or worms. (Fig. 7-3)
A
For installation in the switch box:
B
For direct installation on the wall select one of the following:
• Prepare a hole through the wall to pass the remote controller cord (in order to run
the remote controller cord from the back), then seal the hole with putty.
• Run the remote controller cord through the cut-out at top of case, then seal the cut-
out notch with putty similarly as above.
B-1. Route of cord to back of controller:
B-2. Route of cord to top of controller:
(3) For direct installation on the wall
C
Wall
D
Conduit
E
Lock nut
F
Bushing
G
Switch box
H
Remote controller cord
I
Seal with putty
J
Wood screw
2) Connecting procedures (Fig. 7-4)
1
Connect the remote controller cord to the terminal block.
A
To TB5 on the indoor unit
B
TB6 (No polarity)
3) Two remote controllers setting
If two remote controllers are connected, set one to “Main” and the other to “Sub”. For
setting procedures, refer to “Function selection of remote controller” in the operation
manual for the indoor unit.
S1
S2
S3
L
N
BLUE
BLUE
YELLOW
YELLOW
CND
CND
ORANGE
CND
ORANGE
S1
S2
S3
L
N
YELLOW
BLUE
BLUE
YELLOW
CND
Electric heater
(For models
with heater)
Connectors (connections when
shipped from the factory are for indoor
unit power supplied from outdoor unit)
If the indoor and
outdoor units have
separate power
supplies, change the
connections of the
connectors as shown in
the following figure.
Connectors
Indoor unit
control
board
Separate indoor unit/outdoor unit power
supplies
Electric heater
(For models
with heater)
Indoor unit
control
board
Indoor unit power supplied from outdoor
unit (when shipped from factory)
Summary of Contents for PEAD-RP EA
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