Mitsubishi Electric PLFY-P-VLMD-E Service Manual download pdf (Page 23)

OPERATING PROCEDURE

1. Remove the service panel and filter with the pro-

cedure explained in section 8-1.

2. Removing the connector cover (A).

• Remove the fixing screws (two) of the connector

cover (A), and remove the cover. (Fig.2-2)

* At this stage, the following servicing is possible. (It

is even possible with the filter attached.)

1 Operation and check of the switches (listed below)

which are on the address board (B).

•

Rotary switches SW11, 12

Address setting

•

Rotary switch SW14

Branch port setting

• Dip switch SW1 Function change (main)

• Slide switches SWA, C Airflow rate change

2 Connection check and local connection of lead

wires (listed below) which are connected to the

control box (C).

•

Power supply lead wire (Connected at the factory)

•

Drain pump lead wire (Connected at the factory)

•

LEV lead wire (Connected at the factory)

•

Panel vane motor lead wire (Connected locally)

•

Panel limit switch lead wire (Connected locally)

•

Drain pump trial operation connector (Connected

locally)

3. Removing the control box (C)

(1) Remove the fixing screws (three) of the filter fixed

plate (D). (Fig.2-3)

(2) Also remove the fixing screws (three) of the con-

trol box cover (F) and remove it. (Fig.2-4)

* At this stage, the following servicing is possible.

1 Operation and check of the switches (listed below)

which are on the control board.

• Dip switch SW2 Capacity code setting

• Dip switch SW3 Function change (auxiliary)

• Dip switch SW4 Model code setting

And the address board exchange.

2 Connection check of the lead wires (listed below)

which are connected to the control box

•

Power supply lead wire

• Remote control communication lead wire

•

Fan motor lead wire

•

LEV lead wire

•

Drain pump lead wire

•

Drain sensor lead wire

•

Intake air sensor lead wire

•

Liquid piping sensor lead wire

•

Gas piping sensor lead wire

•

Power supply transformer lead wire

•

Address board lead wire

•

Panel vane motor lead wire

•

Panel limit switch lead wire

(Fig.2-2)

PHOTOS&ILLUSTRATIONS

(A)

(Fig.2-3)

(C)

(D)

(B)

(Fig.2-4)

Vane motor cover

(D)

(F)

(C)

Be careful removing heavy parts.

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Mitsubishi Electric PLFY-P-VLMD-E Service Manual Page 23

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