Mitsubishi Electric Mr.Slim PKA-A FA Manual De Instalación página 7

6. Electrical work
1
F
A
F
B
C
D
2
G
H
K
I
J
L
M
N
O
Fig. 6-1
6.1.1. Indoor unit power supplied from outdoor unit (A-control application)
The following connection patterns are available.
The outdoor unit power supply patterns vary on models.
* 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
Minimum circuit ampacity
Maximum rating of overcurrent protective device
Indoor unit power supply
Indoor unit power supply earth
Indoor unit-Outdoor unit
Indoor unit earth
Remote controller-Indoor unit
Indoor unit L1-L2
Indoor unit-Outdoor unit S1-S2
Indoor unit-Outdoor unit S2-S3
Remote controller-Indoor unit
*1. Max. 50 m, 165 ft
*2. The 10 m, 30 ft wire is attached in the remote controller accessory. Max. 500 m, 1500 ft <Only for PKA-A·FA>
*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. Use copper supply wires.
3. Use wires rated 300V or more for the power supply cables and the indoor unit/outdoor unit connecting cables.
4. 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 (for PKA-A·FA)
H Terminal board for control lines
from the outdoor unit
I Power supply wiring & connec-
tion wiring
J Cord clamp
K Terminal board for power supply
(Separate indoor/outdoor unit
power supplies, K-control appli-
cation)
L Bush (Purchased locally)
M Lock nut (Purchased locally)
N Conduit plate
O Connector (Purchased locally)
P Conduit (Purchased locally)
P
C
L1
A B
L2
GR
S1
S2
S3
*1
*2
*3
*3
*3
*3
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
F
D
S1
S2
S3
1
E
G
2
PKA
–
1A
15A
–
–
3 × AWG16 (polar)
1 × Min. AWG16
2 × AWG22 (Non-polar)
–
AC 208/230 V
DC24 V
DC12 V
2 2 poler).
2 or more).
A Outdoor unit power supply
B Wiring circuit breaker or isolating switch
C Outdoor unit
D Indoor unit/outdoor unit connecting cords
E Remote controller (Only for PKA-A·FA)
F Indoor unit
G Indoor unit earth
7