Electrical Work; Bushing (For The Wire Hole) - Mitsubishi Electric PSH-P-GAH Installation Manual

6. Electrical work

d
c
b
a
a 4 × 10 tapping screws
b Electrical equipment cover
c Wiring bands
d Power supply terminals
(with earth terminal)
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.
<For models without heater>
D
L
A B C
N
S1
S2
S3
E
F
* Affix a label A that is included with the manuals near each wiring diagram for the indoor and outdoor units.
<For models without heater>
D
L
A B C
N
S1
S2
S3
E
F
* Affix a label A that is included with the manuals near each wiring diagram for the indoor and outdoor units.
Indoor unit model
Indoor unit power supply (Heater)
Indoor unit input capacity (Heater)
Main switch (Breaker)
Indoor unit power supply (Heater)
Indoor unit power supply (Heater) earth
Indoor unit-Outdoor unit
Indoor unit-Outdoor unit earth
Remote controller-Indoor unit
Indoor unit (Heater) 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. <For 25-140 outdoor unit application>
Max. 45 m
If 2.5 mm 2 used, Max. 50 m
2
If 2.5 mm 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 IEC 57)
3. Install an earth longer than other cables.
e
f
g
e Indoor/outdoor unit connecting terminal
f Earth terminal
g Bushing (for the wire hole)
<For models with heater>
G
A B
S1
S2
S3
1
2
Simultaneous twin/triple/four system
<For models with heater>
G G G G
A B
S1 S1 S1 S1
S2 S2 S2 S2
S3 S3 S3 S3
1 1 1 1
2 2 2 2
*1
*2
*2
*3
*4
*4
*4
*4
6.1. Electric wiring (Fig. 6-1)
1. Remove the tapping screws a and then remove the electrical equipment cover
b.
2. Connect the power supply wire and the control wire.
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 ten-
sile 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.
1:1 System
D G
L
L
C
H B C
N N
S1 S1
S2 S2
S3 S3
E
1
F
2
G
D
L
L
C
H B C
N N
S1 S1
S2 S2
S3
S3
E
1
F
2
PSA
–
–
–
–
3 × 1.5 (polar)
1 × Min. 1.5
2 × 0.3 (Non-polar)
–
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 Heater power supply
A Outdoor unit power supply
B Earth leakage breaker
G G C Wiring circuit breaker or isolating switch
D Outdoor unit
L L
N N E Indoor unit/outdoor unit connecting cords
F Remote controller
S1 S1
G Indoor unit
S2 S2
H Heater power supply
S3 S3
1 1
2 2
PSH
~/N (single), 50 Hz, 230 V
16 A
2 × Min. 1.5
1 × Min. 1.5
3 × 1.5 (polar)
–
2 × 0.3 (Non-polar)
AC 230 V
AC 230 V
DC24 V
DC12 V
7