Installation The Unit; System Configuration; System Confi Guration - Fujitsu AirStage AJYA72GALH Installation Manual

Lifting by forklift
• When using the forklift to lift the unit, pass the forklift arms through the opening
space as shown in below.
Front : Bottom of the wooden delivery pallet.
Side : Space between pallet and cabinet.
(Enable to remove the pallet from cabinet.)
• Be careful not to damaged.
Lifting by forklift (Manual forklift: hand-fork)
• When using the manual forklift to lift the unit, pass the forklift arms through to the
opening space between pallet and cabinet from side.
<Front>
Fork (Forklift)
Delivery pallet
3. 5.

Installation the unit

• 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.)
Fig. A
930
160 610
Hole: 12 × 17
(8 places)
Bottom view
80
• 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.
Fig. B
Prohibited Good
*Do not use a four-corner support foundation.
<Side>
Fork (forklift) or
Fork (Manual forklift)
(Unit: mm)
160
80
Good
Bolt (M10)
Fig. C
When installing pip-
ing from the bottom
of the outdoor units,
the required space
under the outdoor
unit ≥ 200mm.
* Install the branch
kit horizontally.
4.

SYSTEM CONFIGURATION

4. 1. System confi guration
• 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 and on the refrigerant pipe,
followed by those with less nominal system capacities.
• 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.
A) In case of 1 outdoor unit connected
Fig. A
a
f
RB RB
I.U. I.U.
H5
p
RB RB
I.U. I.U.
• Allowable pip length (actual pipe length)
Between master outdoor unit and the
farthest indoor unit
Between the fi rst separation tube and the
farthest indoor unit
Total pipe length
• Allowable height difference
Between outdoor unit and indoor unit (When
indoor unit is installed below)
Between outdoor unit and indoor unit (When
outdoor unit is installed below)
Between indoor units
Between RB unit and indoor unit
Between RB units
• Total refrigerant amount : 70 kg or more
B) In case of 2 outdoor unit connected
Fig. B
O.U.-1
H4
(Master)
a
e
f
RB RB
I.U. I.U.
H6
RB RB
I.U. I.U.
More than
200mm
CAUTION
O.U.
(Master)
O.U. :Outdoor unit
RB :RB unit
I.U. :Indoor unit
(*1: Cooling only)
RB RB
H1
*1
I.U. I.U. I.U.
RB RB
H2
H4
I.U.
H3
I.U.
165 m or less
60 m or less
700 m or less
50 m or less
40 m or less
15 m or less H2, H3
5 m or less
15 m or less
O.U.-2
(Slave)
O.U. :Outdoor unit
RB :RB unit
I.U. :Indoor unit
b
(*1: Cooling only)
H1
RB RB
*1
I.U. I.U. I.U.
p
RB RB
H2
H5
I.U.
H3
I.U.
a+f
a+p
f, p
Total
H1
H4
H5
En-6