13
3.2. Securing installation and service space
• Select the optimum direction of supply airflow according to the configuration of the
room and the installation position.
• As the piping and wiring are connected at the bottom and side surfaces, and the
maintenance is made at the same surfaces, allow a proper space properly. For the
efficient suspension work and safety, provide a space as much as possible.
3.3. Indoor unit accessories
The unit is provided with the following accessories:
The values in the parenthesis are for the PEAD-M·JAL model.
4. Fixing hanging bolts
4.1. Fixing hanging bolts
[Fig. 4-1] (P.3)
(Give site of suspension strong structure.)
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).
a
Reinforcing the ceiling with additional members (edge beam, etc.) must be
required to keep the ceiling at level and to prevent the ceiling from vibrations.
b
Cut and remove the ceiling members.
c
Reinforce the ceiling members, and add other members for fixing the ceiling
boards.
Center of gravity and Product Weight
The values in the parenthesis are for the PEAD-M·JAL 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)
[Fig. 5-1-2] (P.3)
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.
6. Refrigerant piping work
6.1. Refrigerant pipe
[Fig. 6-1] (P.4)
Refer to the Instruction Manual that came with the outdoor unit for the restrictions on
the height difference between units and for the amount of additional refrigerant
charge.
Avoid the following places for installation where air conditioner trouble is liable to
occur.
• Where there is too much oil such as for machine or cooking.
• Salty environment as seaside areas.
• Hot-spring areas.
• Where sulfide gas exists.
• Other special atmospheric areas.
• This unit has flared connections on both indoor and outdoor sides. [Fig. 6-1]
• Insulate both refrigerant and drainage piping completely to prevent condensation.
Piping preparation
• Refrigerant pipes of 3, 5, 7, 10 and 15 m are available as optional items.
(1) Table below shows the specifications of pipes commercially available.
(2) Ensure that the 2 refrigerant pipes are well insulated to prevent condensation.
(3) Refrigerant pipe bending radius must be 10 cm or more.
Caution:
Using careful insulation of specified thickness. Excessive thickness prevents
storage behind the indoor unit and smaller thickness causes dew drippage.
No.
Name
Quantity
a
Pipe cover (for refrigerant piping joint) Small diameter
1
b
Pipe cover (for refrigerant piping joint) Large diameter
1
c
Bands for temporary tightening of pipe cover and drain hose
8(7)
d
Washer
8
e
Drain
hose
1
A
Center of gravity
Model name
W (mm)
L (mm)
X (mm)
Y (mm)
Z (mm)
Product Weight (kg)
PEAD-M35JA(L)
643
954
340
375
130
26(25)
PEAD-M50JA(L)
643
954
340
375
130
28(27)
PEAD-M60JA(L)
643
1154
325
525
130
33(32)
PEAD-M71JA(L)
643
1154
325
525
130
33(32)
PEAD-M100JA(L)
643
1454
330
675
130
41(40)
PEAD-M125JA(L)
643
1454
330
675
130
43(42)
PEAD-M140JA(L)
643
1654
332
725
130
47(46)
A
Unit body
B
Lifting machine
C
Nuts (field supply)
D
Washers (accessory)
E
M10 hanging bolt (field supply)
a
Indoor unit
b
Outdoor unit
Model
Pipe
Outside diameter
Min. wall
thickness
Insulation
thickness
Insulation
material
mm
inch
PEAD-
M35
For liquid
6.35
1/4
0.8 mm
8 mm
Heat resisting
foam plastic
0.045 specific
gravity
For gas
12.7
1/2
0.8 mm
8 mm
PEAD-
M50
For liquid
6.35
1/4
0.8 mm
8 mm
For gas
12.7
1/2
0.8 mm
8 mm
PEAD-
M60
For liquid
9.52
3/8
0.8 mm
8 mm
For gas
15.88
5/8
1.0 mm
8 mm
PEAD-
M71
For liquid
9.52
3/8
0.8 mm
8 mm
For gas
15.88
5/8
1.0 mm
8 mm
PEAD-
M100
For liquid
9.52
3/8
0.8 mm
8 mm
For gas
15.88
5/8
1.0 mm
8 mm
PEAD-
M125
For liquid
9.52
3/8
0.8 mm
8 mm
For gas
15.88
5/8
1.0 mm
8 mm
PEAD-
M140
For liquid
9.52
3/8
0.8 mm
8 mm
For gas
15.88
5/8
1.0 mm
8 mm
KJ79H016H01.book 13 ページ ２０１７年２月２１日 火曜日 午後５時４５分
