Electrical Work; Power Supply Wiring - Mitsubishi Electric PMFY-P20VBM-E Installationshandbuch

3. Refrigerant pipe and drain pipe
33 37
Fig. 3-5
Fig. 3-6
Fig. 3-7
Fig. 3-8
4. Electrical work
A Cover
B Electrical box
C Terminal block for power supply
D Terminal block for transmission cable
E Control board
F Address board
G Secure with the wiring clamp.
H Terminal block for MA Remote controller
6
(mm)
Fig. 4-1
L N M1M2 S 1 2
TB2 TB5 TB15
Fig. 4-2
1. Connect the drain socket (supplied with the unit) to the drain port. (Fig. 3-5)
(Fix the tube using PVC adhesive then secure it with a band.)
2. Install a locally purchased drain pipe (PVC pipe, O.D. ø26).
(Fix the pipe using PVC adhesive then secure it with a band.)
3. Insulate the pipe. (PVC pipe, O.D. ø26)
4. Check that drain flows smoothly.
5. Insulate the drain port and drain socket with insulating material 7 , then secure
the material with a band. (Both insulating material and band are supplied with
the unit.) (Fig. 3-6)
[Fig.3-5]
A Unit
B Insulating material 7
C Band (large) 4
D Drain port (transparent)
E Insertion margin
F Matching
G Drain pipe (O.D. ø26 PVC TUBE)
H Insulating material (purchased locally)
I O.D. ø26 PVC TUBE (Slope 1/100 or more)
J Band (small) 4
K Drain socket
[Fig.3-6]
A Drain port sectional view
B Band (large) 4
C Insulating material wrapping starting position (Top side)
D Insulating material 7
E Ceiling panel
In cases of upward drainage (Fig. 3-7)
• The largest dimension possible for the vertical section at B is 60 cm from the
lower surface of the ceiling. Make this vertical section as short as possible.
Water drainage check (Fig. -8)
1. Fill the drainage pan with about 0.5 litres of water. (Do not pour water directly
into the drain pump.)
2. Make a test run of the unit (in Cooling mode).
3. Check for water drainage at the transparent check window and the outlet of the
drainage pipe.
4. Stop the test run. (Do not forget to turn off the power.)
A Ceiling panel
B Max. 60 cm
C Position of drain outlet
D Make as short as possible (Max. 15 cm).
E Make as small as possible.
4.1. Electric wiring (Fig. 4-1)
* Make sure all electrical wiring is complete before installing the cover panel.
1. Remove the cover from the address board (2 bolts).
2. Remove the cover from the electrical box (1 bolt).
3. Remove the bolts securing the electrical box and lower the box (2 bolts).
4. Insert the wires into the electrical box.
5. Connect the wires securely to the terminal block.
* Be sure to make the various wires long enough so the box may be lowered
from the unit during servicing.
6. Secure the wires with the wiring clamp on the side of the electrical box.
7. Replace the parts you have removed to their original locations.
4.2. Power supply wiring
• Wiring size must comply with the applicable local and national code.
• Install an earth longer than other cables.
• Power supply codes of appliance shall not be lighter than design 60245 IEC 53
or 60227 IEC 53.
• A switch with at least 3 mm contact separation in each pole shall be provided by
the air conditioner installation.
Power cable size : more than 1.5 mm² (3-core)
Warning:
Never splice the power cable or the indoor-outdoor connection cable, other-
wise it may result in a smoke, a fire or communication failure.
► Use earth leakage breaker (NV).
For breaker, means shall be provided to ensure disconnection of all active phase
conductors of the supply.
[Fig. 4-2]
A Switch 16 A D Total operating current be less than 16 A
B Overcurrent protection 16 A E Pull box
C Indoor unit
F Downward slope (1/100 or more)
G Make as great as possible (Min. 10 cm).
H Drainage pipe vertical section
I Water bottle (procure locally)