Mitsubishi Electric PKA-A24FA Installation Manual page 7

6, Electrical work
®
@
÷
/
®
L_ Terminal board cover
(_ Screw
@ Band
@ Printed circuit board cover
L_ Right side panel
Coupler connector
Terminal board for remote con-
troller (for PKA-A.FA)
_H_ Terminal board for control lines
from the outdoor unit
(_) Power supply wiring & connec-
tion wiring
@ Cord clamp
Bush (Purchased locally)
Lock nut (Purchased locally)
Conduit plate
@ Connector (Purchased locally)
_P)Conduit (Purchased locally)
6.1. Indoor unit (Fig. 6-1)
(_) Remove the right side panel.
To do this, remove the screws on the mower and right sides.
Remove the securing screw on the terminal board cover to take away the cover.
® Connect the power, control line. (3 x 2.5 mm 2 2 poler).
This cables shaft not lighter than polychloroprene sheathed flexibme cord.
(design 245 mEC 57)
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 2 or more).
After wiring is completed, reinstall the parts in the reverse order of removal.
z_ Warning:
Wiring should be done so that the power mines are not subject to tension. Oth=
erwise, heat may be generated or fire may occur.
© @ ®
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.
(_) (_ @ Outdoor unit power supply
[-7 I (_) Wiring circuit breaker or isolating switch
I ! @ Outdoor unit
(_) i _ Indoor unit/outdoor unit connecting cords
J_! (_) Remot .... troller (On,y for PKA-A.FA)
', _ _ Indoor unit
h(_)'i _ _i ¢ Ind ..... it earth
@
* Affix a label A that is included with the manuams near each wiring diagram for the indoor and outdoor units.
Indoor unit model PKA
Minimum circuit ampacity 1A
Maximum rating of overcurrent protective device 15A
•_ Indoor unit-Outdoor unit "1 3 x AWG16 (polar)
#x
:_ ndoor unit earth 1 x Min. AWG16
Remote controller-Indoor unit *2 2 x AWG22 (Non-polar)
Indoor unit-Outdoor unit $1-$2 *3 AC 208/230 V
..=_
= Indoor unit-Outdoor unit $2-$3 *3 DC24 V
LS_
Remote controller-Indoor unit *3 DC12 V
"1. Max. 50 m, 165ft
*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.
$3 terminal has DC 24 V against S2 terminal. However between S3 and Sl, 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.
7