Mitsubishi Electric PFFY-P50VLRMM-E [7/11] Installing the unit

Mitsubishi Electric PFFY-P20VLRMM-E [7/11] Installing the unit

INL

PGRRUTR

Liquid pipe

ø 6.35

ø 9.52

3.1. Securing installation and service space

For PFFY-P-VLRMM-E (mm)

Model name (C) (D)

20 · 25 660 More than 240

32 · 40 780 More than 240

50 · 63 1030 More than 240

[Fig. 3.1.1] (P.2)

A Floor B Ceiling

C Piping space D Electrical part service space

3.2. Combining indoor units with outdoor

units

For combining indoor units with outdoor units, refer to the outdoor unit installation

manual.

4.2. Center of gravity and product weight

[Fig. 4.2.1] (P.2)

A Floor hole for fixing

For PFFY-P-VLRMM-E

4. Installing the unit

4.1. Assembling the unit

1 Install the unit frame in parallel with the floor securely when installing. If the

floor is not flat, be sure to use the supplied level adjusting screws to maintain

the unit body at level.

[Fig. 4.1.1] (P.2)

A Floor hole for fixing

B Level adjusting screws (supplied)

C Screw plate (supplied)

Note:

There are two level adjusting screws on both sides each, a total of four.

There are the following two methods of fixing the unit for purposes of preventing

the unit from falling down. Where fixing is necessary, screw the unit at the specified

position given below.

For fixing on the floor

[Fig. 4.1.2] (P.2)

For fixing on the wall

[Fig. 4.1.3] (P.2)

Model name (E) (F)

20 · 25 1050 640

32 · 40 1170 760

50 · 63 1410 1000

Note:

When fixing on the wall, fix the unit with the electrical parts removed from

the unit.

Model name

PFFY-P20VLRMM-E

PFFY-P25VLRMM-E

PFFY-P32VLRMM-E

PFFY-P40VLRMM-E

PFFY-P50VLRMM-E

PFFY-P63VLRMM-E

640

760

1000

100

335

Product Weight (kg)

18.5

5. Refrigerant pipe and drain pipe specifications

To avoid dew drops, provide sufficient antisweating and insulating work to the re-

frigerant and drain pipes.

When using commercially available refrigerant pipes, be sure to wind commer-

cially available insulating material (with a heat-resisting temperature of more than

100°C and thickness given below) onto both liquid and gas pipes.

Be also sure to wind commercially available insulating material (with a form

polyethylene’s specific gravity of 0.03 and thickness given below) onto all pipes

which pass through rooms.

1 Select the thickness of insulating material by pipe size.

Pipe size Insulating material’s thickness

6.4 mm to 25.4 mm More than 10 mm

28.6 mm to 38.1 mm More than 15 mm

2 If the unit is used on the highest story of a building and under conditions of

high temperature and humidity, it is necessary to use pipe size and insulating

material’s thickness more than those given in the table above.

3 If there are customer’s specifications, simply follow them.

5.1. Refrigerant pipe and drain pipe size

A Refrigerant pipe sizes

[Fig. 5.1.1] (P.3)

A Refrigerant pipe brazing (for gas): LP

B Refrigerant pipe brazing (for liquid): HP

C Main drain pan D Sub drain pan

E Hose (accessory) (External diameter ø 27 (end ø 20))

F Air filter G Electrical part box

P20/25/32/40/50

P63

Gas pipe

ø 12.7

ø 15.88

Model name

WT05228X01_en 07.8.24, 6:05 PM7

Mitsubishi Electric PFFY-P50VLRMM-E [7/11] Installing the unit

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