Duct Work; Electrical Wiring; Confirming Drain Discharge; Types Of Control Cables - Mitsubishi Electric City Multi PEFY-P15 VMS1-E Manual De Instalación

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[Fig. 7.2.2] (P.3) * only on the PEFY-P·VMS1-E model
A Indoor unit
B Insulation pipe (long) (accessory)
C Tie band (accessory)
D Visible part
E Insertion margin
F Drain hose (accessory)
G Drain pipe (O.D. ø32 PVC TUBE, field supply)
H Insulating material (field supply)
I Tie band (accessory)
J Max.180 ± 5 mm
K To be gap free. The joint section of the insulation material meet must be at the top.
[PEFY-P·VMS1L-E model]
1. Insert the drain hose (accessory) into the drain port.
(The drain hose must not be bent more than 45° to prevent the hose from
breaking or clogging.)
The connecting part between the indoor unit and the drain hose may be dis-
connected at the maintenance. Fix the part with the accessory band, not be
adhered.
2. Attach the drain pipe (O.D. ø32 PVC TUBE, field supply).
(Attach the pipe with glue for the hard vinyl chloride pipe, and fix it with the
band (small, accessory).)
3. Perform insulation work on the drain pipe (O.D. ø32 PVC TUBE) and on the
socket (including elbow).
[Fig. 7.2.3] (P.3) * only on the PEFY-P·VMS1L-E model
A Indoor unit
B Insulation pipe (short) (accessory)
C Tie band (accessory)
D Band fixing part
E Insertion margin
F Drain hose (accessory)
G Drain pipe (O.D. ø32 PVC TUBE, field supply)
H Insulating material (field supply)
I Max.145 ± 5 mm

8. Duct work

When connecting ducts, insert a canvas duct between the main body and the
duct.
Use non-combustible duct components.
Install sufficient thermal insulation to prevent condensation forming on outlet
duct flanges and outlet ducts.
Caution:
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.

9. Electrical wiring

Precautions on electrical wiring
Warning:
Electrical work should be done by qualified electrical engineers in accord-
ance with "Engineering Standards For Electrical Installation" and supplied
installation manuals. Special circuits should also be used. If the power
circuit lacks capacity or has an installation failure, it may cause a risk of
electric shock or fire.
1. Be sure to install an earth leakage breaker to the power.
2. Install the unit to prevent that any of the control circuit cables (remote con-
troller, transmission cables) is brought in direct contact with the power cable
outside the unit.
3. Ensure that there is no slack on all wire connections.
4. Some cables (power, remote controller, transmission cables) above the ceil-
ing may be bitten by mouses. Use as many metal pipes as possible to insert
the cables into them for protection.
5. Never connect the power cable to leads for the transmission cables. Other-
wise the cables would be broken.
10

7.3. Confirming drain discharge

u Make sure that the drain-up mechanism operates normally for dis-
charge and that there is no water leakage from the connections.
Be sure to confirm the above in a period of heating operation.
Be sure to confirm the above before ceiling work is done in the case of a new
construction.
1. Remove the water supply port cover on the same side as the indoor unit pip-
ing.
2. Fill water into the feed water pump using a feed water tank. In filling, be sure
to put the end of the pump or tank in a drain pan. (If the insertion is incom-
plete, water may flow over the machine.)
3. Perform the test run in cooling mode, or turn on the switch SWE on the
controller circuit board. (The drain pump and the fan are forced to operate
without any remote controller operation.) Make sure using a transparent hose
that drain is discharged.
SWE
OFF
ON
4. After confirmation, cancel the test run mode, and turn off the main power.
When the switch SWE has been turned on, turn it off, and attach the water
supply port cover into its original position.
SWE
OFF
ON
[Fig. 7.3.1] (P.4)
A Insert pump's end 2 to 4 cm.
B Remove the water supply port.
C About 2000 cc
D Water
E Filling port
F Screw
[Fig. 7.3.2] (P.4)
<Indoor board>
[Fig. 8.0.1] (P.4)
A Air inlet
C Access door
E Canvas duct
G Inlet grille
6. Be sure to connect control cables to the indoor unit, remote controller, and
the outdoor unit.
7. Put the unit to the ground on the outdoor unit side.
8. Select control cables from the conditions given in page 11.
Caution:
Be sure to put the unit to the ground on the outdoor unit side. Do not
connect the earth cable to any gas pipe, water pipe, lightening rod, or
telephone earth cable. Incomplete grounding may cause a risk of electric
shock.

Types of control cables

1. Wiring transmission cables
Types of transmission cables
Design wiring in accordance with the following table <Table 1>.
Cable diameter
2
More than 1.25 mm
SWE
OFF
ON
SWE
OFF
ON
B Air outlet
D Ceiling surface
F Air filter

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