Separate Indoor Unit/ Outdoor Unit Power Supplies; Simultaneous Twin/Triple/Four System - Mitsubishi Electric PUHZ-RP250YHA2 Service Manual

1:1 System (Indoor : PEA-200, 250)
Outdoor
unit
L
1
Unit
L
power
2
supply
L
3
N
Indoor/outdoor
unit connection
cable
S1
Earth leakage breaker
S2
Wiring circuit breaker or
S3
isolating switch

8-2. SEPARATE INDOOR UNIT/ OUTDOOR UNIT POWER SUPPLIES

<For models without heater>
* The optional indoor power supply terminal kit is 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 below.
If the optional indoor power supply terminal kit is used, change the indoor unit electrical
box wiring referring 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 3 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 3.0 mm contact separation in each pole shall be provided. Use earth leakage breaker (NV).
The breaker shall be provided to ensure disconnection of all active phase conductor of the supply.
*2. Max. 120 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.
Notes: 1. Wiring size must comply with the applicable local and national code.
2. Power supply cables and indoor unit/outdoor unit connecting cables shall not be lighter than polychloroprene sheathed
flexible cable. (Design 60245 IEC 57)
3. Install an earth longer than other cables.
Indoor
unit
L
1
Unit
L
2 power
supply
L
3
N
S1
S2
1
Remote
S3
controller
2

Simultaneous twin/triple/four system

L
1
L
2
L
L
3
N
N
S1 S1
S2
S2
S3
S3
1
2
Indoor unit specifications
Required
Required
Required
3
ON
OFF 1 2 (SW8)
Set the SW8-3 to ON.
*1
*2
*3
*4
*4
*4
*4
15
1:2 System (Indoor : PEA-400, 500)
Outdoor
unit No.1
L
1
Unit
L
2
power
L
supply
3
N
Indoor/outdoor
unit connection
cable
S1
S2
S3
Earth leakage breaker
Wiring circuit breaker or
isolating switch
Outdoor
unit No.2
L
1
Unit
L
2
power
supply L
3
N
Indoor/outdoor
unit connection
cable
S1
S2
S3
L L L
N N N
S1 S1 S1
S2 S2 S2
S3 S3 S3
1 1 1
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)
RP35~140
~/N (single), 50 Hz, 230 V
16 A
2 Min. 1.5
1 Min. 1.5
2 Min. 0.3
–
2 0.3 (Non-polar)
AC 230 V
–
DC24 V
DC12 V
Indoor
unit
L
1
L
2
L
3
N
S1
S2
S3
TB4-1
1
Remote
controller
2
TB4-2
S1
S2
S3
Outdoor unit power supply
Earth leakage breaker
Wiring circuit breaker or isolating switch
Outdoor unit
Indoor unit/outdoor unit connecting cales
Remote controller
Indoor unit
Option
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
Unit
power
supply