Optional Parts; Installation Work; Selecting An Installation Location; Drain Processing - Fujitsu AirStage AJYA72GALH Installation Manual

Combination (HP)
Outdoor Unit 1 (HP)
Outdoor Unit 2 (HP)
Outdoor Unit 3 (HP)
Maximum Connectable Indoor Unit 15
Combination (HP)
Outdoor Unit 1 (HP)
Outdoor Unit 2 (HP)
Outdoor Unit 3 (HP)
Maximum Connectable Indoor Unit 45
When connecting outdoor units, install the outdoor unit with the largest nominal system capac-
ity nearest to the refrigerant pipe and indoor unit, followed by those with lesser nominal system
capacities. (Outdoor unit 1 ≥ Outdoor unit 2 ≥ Outdoor unit 3)
2. 5.

Optional parts

The following parts are optional parts specifi c to R410A refrigerant.
Do not use parts other than those listed below.
2. 5. 1. RB unit
RB unit
UTP-RX01AH
UTP-RX01BH
UTP-RX01CH
UTP-RX04BH
*: In case of 2 RB units connected in series (total 8 branches), maximum capacity of
connectable indoor units is up to 56.0 kW.
2. 5. 2. Outdoor unit branch kit
Model
UTP-DX567A
2. 5. 3. Separation tube
Model
for 2 pipes
UTP-AX090A , UTR-BP090X
UTP-AX180A , UTR-BP180X
UTP-AX567A , UTR-BP567X
2. 5. 4. Header
Model: for 2 pipes
3-6 branches 3-8 branches
UTR-H0906L UTR-H0908L
UTR-H1806L UTR-H1808L
Model: for 3 pipes
3-6 branches 3-8 branches
UTP-J0906A UTP-J0908A
UTP-J1806A UTP-J1808A
En-3
8 10 12 16 18 20 22
8 10 12 8 10 10 12
- - - 8 8 10 10
- - - - - - -
16 17 24 27 30 32
30 32 34 36
10 12 12 12
10 10 12 12
10 10 10 12
47 50 53
CAUTION
Total cooling capacity of indoor unit (kW)
8.0 or less
18.0 or less
28.0 or less
18.0 or less (for 1 branch)
56.0 or less (Sum total of 4 branches) *
Total cooling capacity of indoor unit (kW)
ALL
Total cooling capacity of indoor
unit (kW)
for 3 pipes
UTP-BX090A 28.0 or less
UTP-BX180A 28.1 to 56.0
UTP-BX567A 56.1 or more
Total cooling capacity of indoor unit (kW)
28.0 or less
28.1 to 56.0
Total cooling capacity of indoor unit (kW)
28.0 or less
28.1 to 56.0
24 26 28
3.

INSTALLATION WORK

12 10 10
Please obtain the approval of the customer when selecting the location of installation
12 8 10
and installing the main unit.
- 8 8
35 39 42
3. 1.

Selecting an installation location

Install the unit in a location that can withstand its weight, and where it will not topple
or fall.
Calculate the proper refrigerant concentration if you will be installing it in an en-
closed location.
Total amount of replenished refrigerant in refrigerant facility (kg)
Capacity of smallest room where unit is installed (m
If the results of the calculation exceed the concentration limit, increase the room
surface area or install a ventilation duct.
Select an installation location by observing the following precautions:
Install the unit level. (Within 3 degrees)
Install this unit in a location with good ventilation.
If the unit must be installed in an area within easy reach of the general public, install
as necessary a protective fence or the like to prevent their access.
Install the unit in an area that would not inconvenience your neighbors, as they could
be affected by the airfl ow coming out from the outlet, noise, or vibration.
If it must be installed in proximity to your neighbors, be sure to obtain their approval.
If the unit is installed in a cold region that is affected by snow accumulation, snow fall,
or freezing, take appropriate measures to protect it from those elements.
To ensure a stable operation, install inlet and outlet ducts.
Install the unit in an area that would not cause problems even if the drain water is
discharged from the unit. Otherwise, provide drainage that would not affect people or
objects.
Install the unit in an area that has no heat sources, vapors, or the risk of the leakage
of fl ammable gas in the vicinity.
Install the unit in an area that is away from the exhaust or vent ports that discharge
vapor, soot, dust, or debris.
Install the indoor unit, outdoor unit, power supply cable, transmission cable and
remote control cable at least 1 meter away from a television or radio.
The purpose of this is to prevent TV reception interference or radio noise. (Even if
they are installed more than 1 meter apart, you could still receive noise under some
signal conditions.)
Keep the length of the piping of the indoor and outdoor units within the allowable
range.
For maintenance purposes, do not bury the piping.
3. 2.

Drain processing

• The drain water is discharged from the bottom of the equipment. Construct a drain
ditch around the base and discharge the drain water properly.
• When installing on a roof, perform fl oor waterproofi ng properly.
Drain processing:
• The drain water from the base of the outdoor unit may generate during operations.
Perform drain processing, as necessary.
• When you want to prevent the drain water from leaking at the perimeter, construct
a ditch for the drain water as shown in the fi gure.
• Provide a central drain pan, as necessary.
Outdoor unit
3. 3.

Installation dimensions

When installing the outdoor unit, pay attention to the following items.
Provide suffi cient installation space, such as transportation route, maintenance
space, ventilation space, refrigerant piping space, and passageways.
Pay attention to the specifi cations of the installation space as shown in the fi gure.
If the unit is not installed according to specifi cations, it may cause short circuit or
poor performance. The unit may be prone to lapse into non-operation due to high
pressure protection.
Do not place obstructions in the air fl ow outlet direction. If there is an obstruction in
the outlet direction, install an outlet duct.
WARNING
Refrigerant concentration (kg/m
≤
(0.3kg/m
3
)
CAUTION
50mm or
more
10mm or more
CAUTION
3
)
3
)