Mitsubishi Electric PEFY-P50VMA-E [10/21] Duct work

Mitsubishi Electric PEFY-P80VMA-E [10/21] Duct work

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8.Duct work

7.3. Confirming drain discharge

Make sure that the drain-up mechanism operates normally for discharge

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 incomplete,

water may flow over the machine.)

3. Perform the test run in cooling mode, or connect the connector to the ON side

of SWE on the Indoor controller board. (The drain pump and the fan are forced

to operate without any remote controller operation.) Make sure using a trans-

parent hose that drain is discharged.

4. After confirmation, cancel the test run mode, and turn off the main power.

If the

connector is connected to the ON side of SWE, disconnect it and connect it to

the OFF side, and attach the water supply port cover into its original position.

[Fig. 7.3.1] (P.4)

A Insert pump's end 2 to 4 cm.

B Remove the water supply port.

C About 2500 cc

D Water

E Filling port

F Screw

[Fig. 7.3.2] (P.4)

5. Attach the insulating material, and fix it with the band (large, accessory) to

insulate the drain port.

[Fig. 7.2.2] (P.3) *only on the PEFY-P·VMA-E model

A Indoor unit

B Tie band (accessory)

C Visible part

D Insertion margin

E Drain hose (accessory)

F Drain pipe (O.D. ø32 PVC TUBE, field supply)

G Insulating material (field supply)

H Tie band (accessory)

[PEFY-P·VMAL-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

disconncted 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·VMAL-E model

A Indoor unit

B Tie band (accessory)

C Band fixing part

D Insertion margin

E Drain hose (accessory)

F Drain pipe (O.D. ø32 PVC TUBE, field supply)

G Insulating material (field supply)

• In connecting duct, insert canvas duct between unit and duct.

• Use incombustible material for duct parts.

• Provide full insulation to inlet duct flange and outlet duct to prevent condensa-

tion.

• Be sure to change the position of air filter to the position where it can be serv-

iced.

[Fig. 8.0.1] (P.4)

<A> In case of rear inlet

<B> In case of bottom inlet

A Duct B Air inlet

C Access door D Canvas duct

E Ceiling surface F Air outlet

G Leave distance enough to prevent short cycle

• Procedure for changing the rear inlet to the bottom inlet.

[Fig. 8.0.2] (P.4)

A Filter B Bottom plate

1. Remove air filter. (First remove filter lock screw.)

2. Remove the bottom plate.

3. Fit the bottom plate to the rear of the body. [Fig. 8.0.3] (P.4)

(Position of lug-holes on the plate are different from those for rear inlet.)

4. Fit filter to the underside of the body.

(Be careful of which side of the filter to fit.) [Fig. 8.0.4] (P.4)

[Fig. 8.0.4] (P.4)

C Nail for the bottom inlet D Nail for the rear inlet

Caution:

• Inlet duct of 850 mm or more should be construted.

To connect the air conditioner main body and the duct for potential equali-

zation.

•To reduce the risk of injury from metal sheet edges, wear protective gloves.

•To connect the air conditioner main body and the duct for potential equali-

zation.

• 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 when using it with bottom inlet specifications.

• Install sufficient thermal insulation to prevent condensation forming on

outlet duct flanges and outlet ducts.

• 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.

•To avoid electrical noise interference, do not run transmission lines at

the bottom of the unit.

When the plate is attached on

the rear side, it exceeds the

height of the rear body panel.

Replicate the plate along the

slit when there is not enough

room above for the entire unit.

SWE SWE

OFF ON OFF ON

< OFF > < ON >

Connector

SWE SWE

OFF ON OFF ON

< ON > < OFF >

Connector

Mitsubishi Electric PEFY-P50VMA-E [10/21] Duct work

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