Mitsubishi Electric PSH-P-GAH Installation Manual page 8

6. Electrical work
6.1.2. 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.
<For models without heater>
* The optional wiring replacement kit is required.
* Affix a label B that is included with the manuals near each wiring diagram for the indoor and outdoor units.
<For models without heater>
* The optional wiring replacement kits are required.
* Affix a label B that is included with the manuals near each wiring diagram for the indoor and outdoor units.
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.
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)
* There are three types of labels (labels A, B, and C). Affix the appropriate labels to
the units according to the wiring method.
Indoor unit model
Indoor unit power supply
Indoor unit input capacity
Main switch (Breaker)
Indoor unit power supply
Indoor unit power supply earth
Indoor unit-Outdoor unit
Indoor unit-Outdoor unit earth
Remote controller-Indoor unit
Indoor unit L-N
Indoor unit-Outdoor unit S1-S2
Indoor unit-Outdoor unit S2-S3
Remote controller-Indoor unit
*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. Max. 120 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.
*3. The 10 m wire is attached in the remote controller accessory. Max. 500 m
*4. The figures are NOT always against the ground.
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 IEC 57)
3. Install an earth longer than other cables.
8
1:1 System
D
L
J B C
A B C
N
S1
S2
S3
E
F
Simultaneous twin/triple/four system
D
L
J B C
A B C
N
S1
S2
S3
E
F
Indoor unit specifications
Required
Required
Required
ON 3
(SW8)
OFF 1 2
~/N (single), 50 Hz, 230 V
*1
*2
2 × 0.3 (Non-polar)
*3
*4
*4
*4
*4
G
L
H
N
S1
S2
S3
1
2
G G G G
L L L L
N N N N
S1 S1 S1 S1
H
S2 S2 S2 S2
S3 S3 S3 S3
1 1 1 1
2 2 2 2
Connectors (connections when shipped
Electric heater
from the factory are for indoor unit power
(For models with
supplied from outdoor unit)
heater)
L
N
ORANGE
CND
Indoor unit
S1
control board
S2
S3
Indoor unit power supplied from outdoor unit
(when shipped from factory)
PSA
16 A
2 × Min. 1.5
1 × Min. 1.5
2 × Min. 0.3
–
AC 230 V
–
DC24 V
DC12 V
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
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
If the indoor and
outdoor units have
separate power
supplies, change the
connections of the
connectors as shown
in the following
figure.
Electric heater
(For models with
heater)
Connectors
L
N
ORANGE
CND
Indoor unit
S1
control board
S2
S3
Separate indoor unit/outdoor unit power
supplies