Electrical Work - Mitsubishi Electric Mr. Slim PKA-RP.FAL Serie Installationshandbuch

6. Electrical work

1
F
A
F
B
C
D
2
G
H
K
I
J
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
2
If 2.5 mm 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.
A Terminal board cover
B Screw
C Band
E
D Printed circuit board cover
E Right side panel
F Coupler connector
G Terminal board for remote con-
troller (option)
H Terminal board for control lines
from the outdoor unit
I Power supply wiring & connec-
tion wiring
J Cord clamp
K Terminal board for electric heater
power (PKH models only)
<For models with heater>
G
A B C
S1
S2
S3
1
2
Simultaneous twin/triple/four system
<For models with heater>
G G G G
A B C
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. Indoor unit (Fig. 6-1)
1 Remove the right side panel.
To do this, remove the screws on the lower and right sides.
Remove the securing screw on the terminal board cover to take away the cover.
2 Connect the power, control line. (3 × 2.5 mm
s This cables shall not lighter than polychloroprene sheathed flexible cord.
(design 245 IEC 57)
s Fix power source wiring to control box using buffer bushing for tensile force.
(PG connection or the like.)
• Since the electric box may need to be pulled out for servicing or other occasions,
wires must have enough slack.
• Class 3 grounding work must be conducted (grounding wire size: 2.5 mm
After wiring is completed, reinstall the parts in the reverse order of removal.
Warning:
Wiring should be done so that the power lines are not subject to tension. Oth-
erwise, heat may be generated or fire may occur.
1:1 System
D G
L L
H B C
N N
S1 S1
S2 S2
S3 S3
E
1
F
2
G
D
L L
H B C
N
N
S1 S1
S2 S2
S3 S3
E
1
F
2
PKA
–
–
–
–
3 × 1.5 (polar)
1 × Min. 1.5
–
–
AC 230 V
DC 24 V
–
2
2 poler).
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
L L
N N D Outdoor unit
E Indoor unit/outdoor unit connecting cords
S1 S1
F Remote controller
S2 S2
G Indoor unit
S3 S3
H Heater power supply
1 1
2 2
PKH
~/N (single), 50 Hz, 230 V
16 A
2 × Min. 1.5
1 × Min. 1.5
3 × 1.5 (polar)
–
–
AC 230 V
AC 230 V
DC 24 V
–
2 or more).
7