Mitsubishi Electric Mr.Slim SEZ-M25DA2 Manual De Instalación página 17

7. Duct work
• When connecting ducts, insert a canvas duct between the main body and the duct.
• Use non-combustible duct components.
Warning:
If one or more rooms are connected to the unit using a duct system, make
sure:
• Install the unit in a space ith at least a minimum floor area defined in the
installation manual for the outdoor unit.
• no auxiliary devices, which may be a potential ignition source, are installed
in the duct work;
• only auxiliary devices approved by the manufacturer are used in the duct
work;
• an air inlet or outlet is connected directly with a room by ducting. Do NOT
use spaces such as a false ceiling as a duct for the air inlet or outlet.
• Do NOT install operating ignition sources (example: open flames, an
operating gas appliance or an operating electric heater) in the duct work.
8. Electrical work
8.1. Power supply
8.1.1 Indoor unit power supplied from outdoor unit
The following connection patterns are available.
The outdoor unit power supply patterns vary on models.
[Fig. 8-1] (P.5)
Ⓐ Indoor unit
Ⓑ Outdoor unit
Ⓒ Wired remote controller
Ⓓ Main switch/fuse
Ⓔ Grounding
Field electrical wiring
Indoor unit model
Indoor unit power supply (Heater)
Indoor unit power supply (Heater) earth
Wiring Wire No. Indoor unit-Outdoor unit
2
× size (mm )
Indoor unit-Outdoor unit earth
Remote controller-Indoor unit
Indoor unit (Heater) L-N
Indoor unit-Outdoor unit S1-S2
Circuit rating
Indoor unit-Outdoor unit S2-S3
Remote controller-Indoor unit
*1 The 10 m wire is attached in the remote controller accessory. Max. 500 m
*2 T he figures are NOT always against the ground. S3 terminal has 24 V DC
against S2 terminal. However between S3 and S1, these terminals are not
electrically insulated by the transformer or other device.
Notes:
iring size must comply ith the applicable local and national code.
1.
2. Power supply cords and indoor unit/outdoor unit connecting cords
shall not be lighter than polychloroprene sheathed flexible cord. (Design
60245 IEC57)
3. Install an earth longer than other cables.
4. Indoor and outdoor connecting wires have polarities. Make sure to
match the terminal number (S1, S2, S3) for correct wirings.
5. Wiring for remote controller cable shall be apart (5 cm, 2 inch or more)
from po er source iring so that it is not influenced by electric noise
from power source wiring.
Warning:
• Never splice the power cable or the indoor-outdoor connection cable,
other ise it may result in a smoke, a fire or communication failure.
Caution:
• The noise from the intake will increase dramatically if intake Ⓐ is fitted
directly beneath the main body. Intake Ⓐ should therefore be installed as
far away from the main body as possible.
Particular care is required
• Install sufficient thermal insulation to prevent condensation forming on
outlet duct flanges and outlet ducts.
• To connect the air conditioner main body and the duct for potential
equalization.
• To reduce the risk of injury from metal sheet edges, wear protective gloves.
• To avoid electrical noise interference, do not run transmission lines at the
bottom of the unit.
• Keep the distance between the inlet grille and the fan over 850 mm.
If it is less than 850 mm, install a safety guard not to touch the fan.
[Fig. 7-1] (P.5)
Ⓐ Air inlet
Ⓑ Air outlet
Ⓒ Access door
Ⓓ Ceiling surface
Ⓔ Canvas duct
Ⓕ Air filter
Ⓖ Inlet grille
8.2. Indoor wire connection
Work procedure
1. Remove the screws holding the cover to dismount the cover.
2. Punch out the knockout holes. (Recommended tool: screwdriver)
3. Route each cable through the wiring intake into the electric component box.
(Procure power cable and in-out connecting cable locally and use remote
control cable supplied with the unit.)
4. Securely connect the power cable and the in-out connecting cable and the
remote control cable to the terminal blocks.
5. Secure the cables with clamps inside the electric component box.
6. Attach the electric component cover as it was.
• Fix power supply cable and indoor/outdoor cable to control box by using buffer
bushing for tensile force. (PG connection or the like.)
SEZ
Warning:
-
• Attach the electrical part cover securely. If it is attached incorrectly, it could
result in a fire, electric shock due to dust,
-
• Use the specified indoor/outdoor unit connecting
3 × 1.5 (polar)
indoor and outdoor units and fix the
1 × Min. 1.5
that no stress is applied to the connecting section of the terminal bed.
2 × 0.3
*1
Incomplete connection or fixing of the
(Non-polar)
*2 -
[Fig. 8-2-1] (P.5)
*2 230 V AC
Ⓐ Screw holding cover (2pcs)
*2 24 V DC Ⓑ Cover
*2 14 V DC
[Fig. 8-2-2] (P.5)
Ⓐ Terminal bed box
Ⓑ Knockout hole
Ⓒ Remove
[Fig. 8-2-3] (P.5)
Ⓔ Use PG bushing to keep the weight of the cable and external force from being applied to
the power supply terminal connector. Use a cable tie to secure the cable.
Ⓕ Indoor/outdoor unit connecting wire
Ⓖ Tensile force
Ⓗ Use ordinary bushing
Ⓘ Transmission wiring
[Fig. 8-2-4] (P.5)
Ⓙ Terminal bed for power source and indoor transmission
Ⓚ Terminal bed for remote controller
Ⓛ Indoor/outdoor unit connecting wire
Ⓜ Transmission line to the remote controller
hen using it ith bottom inlet specifications.
ater, etc.
ire to connect the
ire to the terminal bed securely so
ire could result in a fire.
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