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4
INSTALLATION PROCESS
Indicate clearly who will be responsible for switch setting.
Determination of division work
Make connection clearly between outdoor, indoor,
Preparation of contract drawings
remote controller and option.
Take account of gradient
Sleeve and insert work
of drain piping
Check model name to
Installation of indoor unit
make sure the fitting
is made correctly
Special attention to dryness,
Refrigerant piping work
cleanness and tightness
Drain pipe work
Adjust to downward gradient
Make sure airflow is sufficient
Duct work
Make sure no gaps are left where
Heat insulation work
the insulating materials are joined
Electrical work
Multiple core cable must not be used.
(connection circuits and drive circuits)
(suitable cable should be selected)
In the final check for 24hours at 3.8 MPa(38.7 kgf/cm
Airtight test
must be no drop in pressure.
The vacuum pump used must have a capacity of reaching at least
Vacuum drying
5 torr, more than 1 hour
Recharge correctly as calculated in this manual. and record the
Additional charge of refrigerant
amount of added refrigerant
Make sure there are no gaps left between the facing materials
Fit facing panels
used on the ceiling
Refer to automatic addressing flowchart
Automatic addressing of indoor unit
Preheat the crank case with the electrical heater for more than 6 hours.
Run each indoor unit in turn to make sure the pipe work
Test run adjustment
has been fitted correctly
Explain the use of the system as clearly as possible to your customer and
Transfer to customer with explanation
make sure all relevant documentation is in order
CAUTION
!
• The above list indicates the order in which the individual work
operations are normally carried out but this order may be varied
where local conditions warrants such change.
• The thickness of the piping should comply with the relevant
local and national regulations for the designed pressure 3.8MPa.
• Since R410A is a mixed refrigerant, the required additional
refrigerant must be charged in its liquid state.(If the refrigerant
is charged in its gaseous state, its composition changes and the
system will not work properly.)
OUTDOOR UNITS INFORMATION
CAUTION
!
Combination Ratio(50~200%)
Outdoor Number
Single outdoor units
Double outdoor units
Triple outdoor units
Notes : * We can guarantee the operation only within 130%
Combination. If you want to connect more than 130%
combination, please contact us and discuss the
requirement like below.
• If the operation of indoor unit is more than 130%, the airflow is
operated as low in the all indoor units.
• The number of (
) means the number of Max. connectable
indoor units, when the connected capacity of indoor units is in
the table above.
Outdoor unit foundation work
The foundation must be level even
Installation of outdoor unit
Avoid short circuits and ensure
sufficient space is allowed for service
2
) there
Connection Ratio
200%
160%
130%
Power Supply : 460 V3~ 60Hz
Model Name : ARUN***DTS4
Number of outdoor units
Capacity(HP)
8
Combination Unit
ARUN080DTS4
ARUN080DTS4
Model
Independent
Unit
Dimensions
mm
(920×1,680×760)×1 (920×1,680×760)×1 (920×1,680×760)×1
Net Weight
kg
195 × 1
Refrigerant
kg
6.5
Precharged amount
Liquid mm (inch)
9.52(3/8)
Pipe
Connections
Gas mm (inch)
19.05(3/4)
Number of maximum connectable indoor units
13(20)
Number of outdoor units
Capacity(HP)
Combination Unit
ARUN140DTS4
ARUN140DTS4
Model
Independent
Unit
Dimensions
mm
(1,240×1,680×760)×1
Net Weight
kg
235 × 1
Refrigerant
kg
Precharged amount
Liquid mm (inch)
12.7(1/2)
Pipe
Connections
Gas mm (inch)
28.58(1 1/8)
Number of maximum connectable indoor units
23(35)
Number of outdoor units
Capacity(HP)
Combination Unit
ARUN180DTS4
ARUN180DTS4
Model
Independent
Unit
Dimensions
mm
(1,240×1,680×760)×1
Net Weight
kg
270 × 1
Refrigerant
kg
Precharged amount
Liquid mm (inch)
15.88(5/8)
Pipe
Connections
Gas mm (inch)
28.58(1 1/8)
Number of maximum connectable indoor units
29(45)
Number of outdoor units
Capacity(HP)
22
Combination Unit
ARUN220DTS4
ARUN120DTS4
Model
ARUN100DTS4
Independent
Unit
Dimensions
mm
(920×1,680×760)×2 (920×1,680×760)×2
Net Weight
kg
201 × 2
Refrigerant
kg
6.5 × 2
Precharged amount
Liquid mm (inch)
15.88(5/8)
Pipe
Connections
Gas mm (inch)
28.58(1 1/8)
Number of maximum connectable indoor units
35(44)
Number of outdoor units
Capacity(HP)
28
Combination Unit
ARUN280DTS4
ARUN160DTS4
ARUN120DTS4
Model
Independent
Unit
(1,240×1,680×760)×1
Dimensions
mm
+ (920×1,680×760)×1
Net Weight
kg
235 × 1 + 201 × 1
Refrigerant
kg
8.5 + 6.5
Precharged amount
Liquid mm (inch)
19.05(3/4)
Pipe
Connections
Gas mm (inch)
34.9(1 3/8)
Number of maximum connectable indoor units
45(56)
1 Outdoor Unit
10
12
ARUN100DTS4
ARUN120DTS4
ARUN100DTS4
ARUN120DTS4
201 × 1
201 × 1
6.5
6.5
9.52(3/8)
12.7(1/2)
22.2(7/8)
28.58(1 1/8)
16(25)
20(30)
1 Outdoor Unit
14
16
ARUN160DTS4
ARUN160DTS4
(1,240×1,680×760)×1
235 × 1
8.5
8.5
12.7(1/2)
28.58(1 1/8)
26(40)
1 Outdoor Unit
18
20
ARUN200DTS4
ARUN200DTS4
(1,240×1,680×760)×1
280 × 1
8.5
10
15.88(5/8)
28.58(1 1/8)
32(50)
2 Outdoor Unit
24
26
ARUN240DTS4
ARUN260DTS4
ARUN120DTS4
ARUN140DTS4
ARUN120DTS4
ARUN120DTS4
(1,240×1,680×760)×1
+ (920×1,680×760)×1
201 × 2
235 × 1 + 201 × 1
6.5 × 2
8.5 + 6.5
15.88(5/8)
19.05(3/4)
34.9(1 3/8)
34.9(1 3/8)
39(48)
42(52)
2 Outdoor Unit
30
32
ARUN300DTS4
ARUN320DTS4
ARUN180DTS4
ARUN200DTS4
ARUN120DTS4
ARUN120DTS4
(1,240×1,680×760)×1
(1,240×1,680×760)×1
+ (920×1,680×760)×1
+ (920×1,680×760)×1
270 × 1 + 201 × 1
280 × 1 + 201 × 1
8.5 + 6.5
10 + 6.5
19.05(3/4)
19.05(3/4)
34.9(1 3/8)
34.9(1 3/8)
49(60)
52(64)
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