Mitsubishi Electric PSA-RP100KA / PUHZ-ZRP100YKA [7/24] Electrical work

Mitsubishi Electric PSA-RP140KA / PUHZ-P140VHA [7/24] Electrical work
7
6.1. Electric wiring (Fig. 6-1)
1. Remove the tapping screws a and then remove the electrical equipment cover
b.
2. Connect the electric wires securely to the corresponding terminals.
3. Fasten the wires
d with the bands c.
Always ground the wiring (the ground wire diameter must be 1.6 mm or more).
If the wires contact the pipes, condensation may drip onto them. Make sure that
the wires are properly routed.
Fasten the power source wiring to the control box using the buffer bushing for tensile
force (PG connection or the like)
After finishing this work, always reassemble the unit.
For instructions on how to reinstall the air intake grill, see page 6.
Warning:
Never splice the power cable or the indoor-outdoor connection cable, otherwise
it may result in a smoke, a fire or communication failure.
6. Electrical work
e
d
c
b
a
f
Fig. 6-1
6.1.1. Indoor unit power supplied from outdoor unit
The following connection patterns are available.
The outdoor unit power supply patterns vary on models.
*1. <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 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
*2. The 10 m wire is attached in the remote controller accessory. Max. 500 m
*3. 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 60245 IEC
57)
3. Install an earth longer than other cables.
a 4 × 10 tapping screws d Terminal block for indoor and outdoor units connector.
b Electrical equipment cover e Grounding cable connector
c Wiring bands f Bushing (for the wire hole)
H H H
* Affix a label A that is included with the manuals near each wiring diagram for the indoor and outdoor units.
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
* Affix a label A that is included with the manuals near each wiring diagram for the indoor and outdoor units.
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 Indoor unit earth
1:1 System
Simultaneous twin/triple/four system
Wiring
Wire No. × size
(mm
2
)
Indoor unit-Outdoor unit
*1
3 × 1.5 (polar)
Indoor unit-Outdoor unit earth
*1
1 × Min. 1.5
Indoor unit earth 1
× Min. 1.5
Remote controller-Indoor unit
*2
2 × 0.3 (Non-polar)
Circuit
rating
Indoor unit (Heater) L-N
*3
Indoor unit-Outdoor unit S1-S2
*3 AC 230 V
Indoor unit-Outdoor unit S2-S3
*3 DC24 V
Remote controller-Indoor unit
*3 DC12 V

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