Mitsubishi Electric PKA-A·KA Installation Manual page 10

6. Electrical work
Indoor unit model
Minimum circuit ampacity
Maximum rating of overcurrent protective device
Indoor unit-Outdoor unit
Indoor unit earth
Remote controller-Indoor unit
Indoor unit-Outdoor unit S1-S2
Indoor unit-Outdoor unit S2-S3
Remote controller-Indoor unit
*1. Max. 50 m, 165 ft
*2. The 3 m, 10 ft wire is attached in the remote controller accessory. Max. 500 m, 1640 ft <Only for PKA-A·KA>
*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 cords and the indoor unit/outdoor unit connecting cords.
4. Install an earth longer than other cords.
B
A
1-3/16 1-3/16
1-37/64
C
Fig. 6-2
B-1.
B
H
I
I
Fig. 6-3
A
Fig. 6-4
1
C
B
A
2
Fig. 6-5
10
*1
*2
*3
*3
*3
D
C
A
E
F
I
H
B-2.
H
AB TB6
B
ON/OFF TEMP
FAN AUTO STOP
MODE VANE AUTO START
CHECK LOUVER
TEST RUN min
2,4
SET RESET CLOCK
Fig. 6-6
D
PKA-A·KA(L)
1A
15A
3 × AWG16 (Polar)
1 × Min. AWG16
2 × AWG22 (Non-polar)
AC 208/230 V
DC24 V
DC12 V
6.2. Remote controller
6.2.1. For wired remote controller
(inch)
1) Installing procedures
(1) Select an installing position for the remote controller. (Fig. 6-2)
The temperature sensors are located on both remote controller and indoor unit.
Procure the following parts locally:
Two piece switch box
Thin copper conduit tube
Lock nuts and bushings
A Remote controller profile
G
B Required clearances surrounding the remote controller
C Installation pitch
(2) Seal the service entrance for the remote controller cord with putty to prevent
possible invasion of dew drops, water, cockroaches or worms. (Fig. 6-3)
A For installation in the switch box:
B For direct installation on the wall select one of the following:
• Prepare a hole through the wall to pass the remote controller cord (in order to run
the remote controller cord from the back), then seal the hole with putty.
• Run the remote controller cord through the cut-out upper case, then seal the cut-
out notch with putty similarly as above.
B-1. To lead the remote controller cord from the back of the controller:
J
B-2. To run the remote controller cord through the upper portion:
(3) For direct installation on the wall
C Wall
D Conduit
E Lock nut
F Bushing
G Switch box
H Remote controller cord
I Seal with putty
J Wood screw
2) Connecting procedures (Fig. 6-4)
1 Connect the remote controller cord to the terminal block.
A To TB5 on the indoor unit
B TB6 (No polarity)
3) Two remote controllers setting
If two remote controllers are connected, set one to "Main" and the other to "Sub".
For setting procedures, refer to "Function selection of remote controller" in the
operation manual for the indoor unit.
6.2.2. For wireless remote controller
1) Installation area
• Area in which the remote controller is not exposed to direct sunshine.
• Area in which there is no nearby heating source.
• Area in which the remote controller is not exposed to cold (or hot) winds.
• Area in which the remote controller can be operated easily.
A
• Area in which the remote controller is beyond the reach of children.
2) Installation method (Fig. 6-5)
1 Attach the remote controller holder to the desired location using two tapping
screws.
3
2 Place the lower end of the controller into the holder.
A Remote controller
B Wall
h C Display panel
D Receiver
• The signal can travel up to approximately 7 meters, 23 ft (in a straight line) within
45 degrees to both right and left of the center line of the receiver.
3) Setting (Fig. 6-6)
1 Insert batteries.
2 Press the SET button with something sharp at the end.
blinks and Model No. is lighted.
3 Press the temp
4 Press the SET button with something sharp at the end.
and Model No. are lighted for three seconds, then turned off.
PKA (A24, A30, A36)
button to set the Model No.
heat pump models
cooling only models
002
034