Fixing Hanging Bolts; Installing The Unit; Hanging The Unit Body; Confirming The Unit's Position And Fixing Hanging Bolts - Mitsubishi Electric CITY MULTI PEFY-M20VMA-A1 Installation Manual

4. Fixing hanging bolts

4.1. Fixing hanging bolts
[Fig. 4.1.1] (P.3)
A Center of gravity
(Give site of suspension strong structure.)
Center of gravity and Product Weight
Model name
PEFY-M20VMA(L)-A1
PEFY-M25VMA(L)-A1
PEFY-M32VMA(L)-A1
PEFY-M40VMA(L)-A1
PEFY-M50VMA(L)-A1
PEFY-M63VMA(L)-A1
PEFY-M71VMA(L)-A1
PEFY-M80VMA(L)-A1
PEFY-M100VMA(L)-A1
PEFY-M125VMA(L)-A1
PEFY-M140VMA(L)-A1
The values in the parenthesis are for the PEFY-M·VMAL-A1 model.

5. Installing the unit

5.1. Hanging the unit body

Bring the indoor unit to an installation site as it is packed.
To hang the indoor unit, use a lifting machine to lift and pass through the
hanging bolts.
[Fig. 5.1.1] (P.3)
A Unit body
B Lifting machine
[Fig. 5.1.2] (P.3)
C Nuts (field supply)
D Washers (field supply)
E M10 hanging bolt (field supply)

6. Refrigerant pipe and drain pipe specifications

To avoid dew drops, provide sufficient antisweating and insulating work to the
refrigerant and drain pipes.
When using commercially available refrigerant pipes, be sure to wind commercially
available insulating material (with a heat-resisting temperature of more than 100 °C
and thickness given below) onto both liquid and gas pipes.
Insulate all indoor pipes with form polyethylene insulation with a minimum density of
0.03 and a thickness as specified in the table below.
6.1. Refrigerant pipe and drain pipe specifications
Model
Item
Liquid pipe
Refrigerant pipe
(Brazing connection)
Gas pipe
Drain pipe

6.2. Refrigerant pipe, drain pipe

[Fig. 6.2.1] (P.3)
A Refrigerant pipe (liquid pipe)
B Refrigerant pipe (gas pipe)
C Drain pipe (O.D. ø32)
D Drain pipe (O.D. ø32, spontaneous draining)
10
W L
643 754
643 754
643 754
643 954
643 1154
643 1154
643 1454
643 1454
643 1454
643 1454
643 1654
PEFY-M·VMA(L)-A1
20·25·32·40·50
ø 6.35
ø 12.7
O.D. ø 32
Hanging structure
• Ceiling: The ceiling structure varies from building to one another. For detailed
information, consult your construction company.
• If necessary, reinforce the hanging bolts with anti-quake supporting members as
countermeasures against earthquakes.
* Use M10 for hanging bolts and anti-quake supporting members (field supply).
X Y
330 300
330 300
330 300
340 375
325 525
325 525
330 675
330 675
330 675
330 675
332 725
5.2. Confirming the unit's position and fixing hanging
bolts
Ensure that the hanging bolt nuts are tightened to fix the hanging bolts.
To ensure that drain is discharged, be sure to hang the unit at level using
a level.
Caution:
Install the unit in horizontal position. If the side with drain port is installed
higher, water leakage may be caused.
1 Select the thickness of insulating material by pipe size.
Pipe size
6.4 mm to 25.4 mm
28.6 mm to 38.1 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.
63·71·80·100·125·140
ø 9.52
ø 15.88
Z Product Weight (kg)
130 21.0 (20.0)
130 21.0 (20.0)
130 21.0 (20.5)
130 25.0 (24.5)
130 30.0 (29.0)
130 30.0 (29.0)
130 37 (36)
130 37 (36)
130 37 (36)
130 38 (37)
130 42 (41)
Insulating material's thickness
More than 10 mm
More than 15 mm