Electrical Work - Mitsubishi Electric SLZ-KA25 Installation Manual

6. Drainage piping work
B
D E E
30 30 30
A C L
11
Fig. 6-2

7. Electrical work

B
S1
A Indoor unit
B Outdoor unit
C Wired remote controller
D
D Wired main switch/fuse
E Grounding
For Power supply
D
For Power
supply
B A
E
C
Fig. 7-1
A Electric component cover
B Electric component box
C Entry for Indoor-Outdoor connecting cable
D Entry for wired remote controller cable
E Cable clamp
F Indoor/Outdoor unit connecting terminal
Fig. 7-2
F
H
Fig. 7-3
K
H
C,K
G
I
F
A
S1
S2
S3
1 2
S2 S3
C
A A
G Wired remote controller terminal
(For SLZ-KA25/KA35/KA50VAQ)
H Indoor controller
I Power board
J Earth cable
G
D
C
J
E
1. Connect the drain socket (supplied with the unit) to the drain port. (Fig. 6-2)
(mm)
(Affix the tube using PVC adhesive then secure it with a band.)
2. Install a locally purchased drain pipe (PVC pipe, O.D. ø32).
(Affix the pipe using PVC adhesive then secure it with a band.)
3. Insulate the tube and pipe. (PVC pipe, O.D. ø32 and socket)
J
4. Check that drain flows smoothly.
5. Insulate the drain port with insulating material, then secure the material with a
band. (Both insulating material and band are supplied with the unit.)
A Main unit
B Insulating material
C Band (large)
D Drain port (transparent)
E Insertion margin
F Matching
7.1. Precautions (Fig. 7-1)
Electrical specification
Power supply
(1 phase ~/N, 230V,
50Hz)
• The compressor will not operate unless the power supply phase connection is cor-
rect.
• Grounding protection with a no-fuse breaker (earth leakage breaker [ELB]) is usu-
ally installed for D.
• The connection wiring between the outdoor and indoor units can be extended up to
a maximum of 50 meters, and the total extension including the crossover wiring
between rooms is a maximum of 80 m.
A switch with at least 3.5 mm contact separation in each pole shall be provided by the
air conditioner installation.
* Label each breaker according to purpose (heater, unit etc.).
7.2. Indoor unit (Fig. 7-2) (Fig. 7-3)
Work procedure
1.Remove 2 screws to detach the electric component cover.
2.Route each cable through the wiring intake into the electric component box. (Pro-
cure power supply cable and indoor/outdoor connecting cable locally.)
3.Securely connect the power supply cable and the indoor/outdoor connecting cable
to the terminal blocks.
4.Secure the cables with clamps outside the electric component box.
5.Attach the electric component cover as it was.
• Fix power supply cable and indoor/outdoor connecting cable to electric component
box by using buffer bushing for tensile force. (PG connection or the like.)
Warning:
• Attach the electric component cover securely. If it is attached incorrectly, it
could result in a fire, electric shock due to dust, water, etc.
• Use the specified indoor/outdoor unit connecting cable to connect the in-
door and outdoor units and fix the cable to the terminal block securely so
that no stress is applied to the connecting section of the terminal block. In-
complete connection or fixing of the cable could result in a fire.
G Drain pipe (O.D. ø32 PVC TUBE)
H Insulating material (purchased locally)
I Transparent PVC pipe
J O.D. ø32 PVC TUBE (Slope 1/100 or more)
K Band (small)
L Drain socket
Input capacity Main Switch/Fuse (A)
SLZ-KA25 SLZ-KA35 SLZ-KA50
10 10 20
7