Fujitsu Airstage AJYA72LALH - 4. System Configuration; 4.1. System Configuration Overview; 4.1.A. Single Outdoor Unit Configuration; 4.1.B. Two Outdoor Unit Configuration

En-6
Fork (Forklift)
Delivery pallet
Fork (Forklift) or
Fork (Manual forklift)
<Front>
<Side>
Installation the unit3. 5.
Install the unit level. (within 3 degrees).•
Install 4 or more anchor bolts at the 8 locations indicated by arrows (Fig. A).•
Place the left and right anchor bolts at a distance further away than the dimensions •
of A in the Table A.
(Excluding the case where anchor bolts are installed at 8 places.)
AFig.
Hole: 12 × 17
(8 places)
Bottom view
(Unit: mm)
732 765
80
80
160160
B
A
Table.A
Model name A B
AJ
□
A72LALH 610 930
AJ
□
A90LALH 610 930
AJ
□
108LALH 610 930
AJ
□
126LALH 920 1240
AJ
□
144LALH 920 1240
To minimize vibration, do not install the outdoor unit directly on the ground.•
Instead, install it on top of a fi rm platform (such as concrete block). (Fig. B)
The foundation base should be able to support the product and the foot width of •
the product should be more than 46.5mm.
Depending on the installation condition, vibration during the operation of the unit •
may cause noise and vibration.
Install vibration-proofi ng materials (such as rubber pads).
Consider the removal space of the connection piping when installing the founda-•
tion.
Secure the equipment fi rmly with anchor bolts, washers, and nuts.•
BFig.
Bolt (M10)
*Do not use a four-corner support foundation.
GOODPROHIBITED GOOD
CFig.
More than
200mm
When installing pip-
ing from the bottom
of the outdoor units,
the required space
under the outdoor
unit ≥ 200mm.
* Install the branch
kit horizontally.
SYSTEM CONFIGURATION4.
System confi guration4. 1.
CAUTION
When connecting multiple outdoor units, set the nearest outdoor unit to the indoor •
unit on the refrigerant pipe as the master unit.
When connecting multiple outdoor units, install the outdoor unit with the largest •
nominal system capacity nearest to the indoor unit on the refrigerant pipe, fol-
lowed by those with less nominal system capacities.
[Capacity: Master ≥ Slave]
Always keep to the limit on the total amount of refrigerant. Exceeding the limit •
on the total amount of refrigerant when charging will lead to malfunction.
In case of 1 outdoor unit connected A)
A Fig.
O.U.
(Master)
O.U. :Outdoor unit
I.U. :Indoor unit
I.U.
I.U. I.U. I.U.
I.U.
I.U. I.U. I.U. I.U.
f
H2
H1
H3
a
Allowable pip length (actual pipe length)•
Between master outdoor unit and the
farthest indoor unit
150 m or less
a+f
a+p
Between the fi rst separation tube and the
farthest indoor unit
60 m or less f, p
Total pipe length 700 m or less Total
Allowable height difference•
Between outdoor unit and indoor unit (When
indoor unit is installed below)
50 m or less
H1
Between outdoor unit and indoor unit (When
outdoor unit is installed below)
40 m or less
Between indoor units 15 m or less H2, H3
Total refrigerant amount : 31.5 kg or less•
In case of 2 outdoor units connected B)
B Fig.
O.U.-2
(Slave)
O.U.-1
(Master)
f
e
a
H4
p
H1
H2
H3
b
O.U. :Outdoor unit
I.U. :Indoor unit
I.U.
I.U.
I.U.
I.U.
I.U.
I.U.
I.U.
I.U. I.U.
Allowable pip length (actual pipe length)•
Between master outdoor unit and the
farthest indoor unit
150 m or less
a+e+f
a+e+p
Between the fi rst separation tube and the
farthest indoor unit
60 m or less f, p
Total pipe length 1000 m or less Total
Between outdoor unit and outdoor unit
branch kit
3 m or less a, b
9378945104-01_IM.indb Sec1:69378945104-01_IM.indb Sec1:6 2013-3-12 14:08:182013-3-12 14:08:18