6
ENGLISH
T
he foundation must be level even
Outdoor unit foundation work
Avoid short circuits and ensure
sufficient space is allowed for service
Installation of outdoor unit
Refer to automatic addressing flowchart
Automatic addressing of indoor unit
In the final check for 24hours at 3.8 MPa(38.7 kgf/cm
2
) there
must be no drop in pressure.
Leak test
Multiple core cable must not be used.
(suitable cable should be selected)
Electrical work
(connection circuits and drive circuits)
M
ake sure no gaps are left where
the insulating materials are joined
Heat insulation work
Make sure airflow is sufficient
Duct work
A
djust to downward gradient
Drain pipe work
S
pecial attention to dryness,
c
leanness and tightness
Refrigerant piping work
C
heck model name to
make sure the fitting
is made correctly
Installation of indoor unit
T
ake account of gradient
o
f drain piping
S
leeve and insert work
M
ake connection clearly between outdoor, indoor,
r
emote controller and option.
Preparation of contract drawings
Indicate clearly who will be responsible for switch setting.
Determination of division work
The vacuum pump used must have a capacity of reaching at least
5 torr, more than 1 hour
Vacuum drying
Recharge correctly as calculated in this manual. and record the
a
mount of added refrigerant
Additional charge of refrigerant
Make sure there are no gaps left between the facing materials
used on the ceiling
Fit facing panels
Run each indoor unit in turn to make sure the pipe work
has been fitted correctly
Test run adjustment
Explain the use of the system as clearly as possible to your customer and
make sure all relevant documentation is in order
Transfer to customer with explanation
P
reheat the crank case with the electrical heater for more than 6 hours.
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 3.8 MPa.
• Since R410A is a mixed refrigerant, the required additional refrig-
erant 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.)
!
C
AUTION
Notes :
1) Rating capacity on heating of Multi V IV Pro is same to rating
capacity on cooling. Please, do refer heating capacity in the
performance table carefully when you design heating capac-
ity by outdoor ambient temperature. All model selection for
capacity is not responsibility of LG.
2) We can guarantee the operation only within 130% combina-
tion ratio. If you want to connect more than 130% combina-
tion ratio, please contact us and discuss the requirement.
3) In case that operating indoor units ratio to rated capacity of
outdoor unit is more than 130%, the airflow should be oper-
ated as low step in the all indoor units.
4) In case of Space Saving Model (ARUN***LLN4), we can rec-
ommend the operation within 120% combination ration for
two or more combination.
5) The numbers in parentheses means maximum connectable
indoor units in accordance with outdoor units combination.
!
Power Supply : 380-415V, 50Hz
Model Name : ARUN***LLS4, ARUN***LLN4
n
Standard Model
CAUTION
* ARUN220LLN4 (Single Unit) model can guarantee the opera-
tion only within 160% combination ratio.
Combination Ratio(50~200%)
!
OUTDOOR UNITS INFORMATION
Number of Outdoor units
Combination Ratio
Standard Model
Space Saving Model
Single Unit
200% 160%*
Two Units Combination
160% 120%
Three or More Units Combination
130% 120%
Unit
1 Outdoor Unit
S
ystem(HP)
Model
C
ombination Unit
I
ndependent Unit
Refrigerant
P
recharged Amount
k
g
lbs
Number of maxmum connectable indoor units
Net Weight
k
g
lbs
Dimensions
(WxHxD)
mm
inch
Piping Conections
mm(inch)
mm(inch)
Unit
1 Outdoor Unit 2 Outdoor Unit
System(HP)
Model
Combination Unit
Independent Unit
Refrigerant
Precharged Amount
kg
lbs
Number of maxmum connectable indoor units
Net Weight
kg
lbs
Dimensions
(WxHxD)
mm
inch
Piping Conections
mm(inch)
mm(inch)
20
ARUN200LLS4
ARUN200LLS4
7.6
16.8
32(50)
259 × 1
571 × 1
(1,240 × 1,680 × 760) × 1
(48-13/16 × 66-5/32
× 29-29/32) x 1
Ø 15.88(5/8)
Ø 28.58(1-1/8)
22
ARUN220LLS4
ARUN120LLS4
ARUN100LLS4
5.0 × 2
11.0 × 2
35(44)
183 × 1 + 178 × 1
403 × 1 + 392 × 1
(920 × 1,680 × 760) × 2
(36-7/32 × 66-5/32 ×
29-29/32) x 2
Ø 15.88(5/8)
Ø 28.58(1-1/8)
24
ARUN240LLS4
ARUN120LLS4
ARUN120LLS4
5.0 × 2
11.0 × 2
39(48)
183 × 2
403 × 2
(920 × 1,680 × 760) × 2
(36-7/32 × 66-5/32 ×
29-29/32) x 2
Ø 15.88(5/8)
Ø 34.9(1-3/8)
Unit
1 Outdoor Unit
System(HP)
Model
Combination Unit
Independent Unit
Refrigerant
Precharged Amount
kg
lbs
Number of maxmum connectable indoor units
Net Weight
kg
lbs
Dimensions
(WxHxD)
mm
inch
Piping Conections
mm(inch)
mm(inch)
14
ARUN140LLS4
ARUN140LLS4
6.6
14.6
23(35)
193 × 1
425 × 1
(920 × 1,680 × 760) × 1
(36-7/32 × 66-5/32
× 29-29/32) × 1
Ø 12.7(1/2)
Ø 28.58(1-1/8)
16
ARUN160LLS4
ARUN160LLS4
6.0
13.2
26(40)
208 × 1
459 × 1
(1,240 × 1,680 × 760) × 1
(48-13/16 × 66-5/32
× 29-29/32) x 1
Ø 12.7(1/2)
Ø 28.58(1-1/8)
18
ARUN180LLS4
ARUN180LLS4
6.0
13.2
29(45)
249 × 1
549 × 1
(1,240 × 1,680 × 760) × 1
(48-13/16 × 66-5/32
× 29-29/32) x 1
Ø 15.88(5/8)
Ø 28.58(1-1/8)
8
ARUN080LLS4
ARUN080LLS4
5
.0
1
1.0
13(20)
178 × 1
3
92 × 1
(
920 × 1,680 × 760) × 1
(36-7/32 × 66-5/32 × 29-29/32) × 1
Ø 9.52(3/8)
Ø 19.05(3/4)
10
ARUN100LLS4
ARUN100LLS4
5
.0
1
1.0
16(25)
178 × 1
3
92 × 1
(
920 × 1,680 × 760) × 1
(36-7/32 × 66-5/32 × 29-29/32) × 1
Ø 9.52(3/8)
Ø 22.2(7/8)
12
ARUN120LLS4
ARUN120LLS4
5
.0
1
1.0
20(30)
183 × 1
4
03 × 1
(
920 × 1,680 × 760) × 1
(36-7/32 × 66-5/32 × 29-29/32) × 1
Ø 12.7(1/2)
Ø 28.58(1-1/8)
Unit
2 Outdoor Unit
System(HP)
Model
Combination Unit
Independent Unit
Refrigerant
Precharged Amount
kg
lbs
Number of maxmum connectable indoor units
Net Weight
kg
lbs
Dimensions
(WxHxD)
mm
inch
Piping Conections
mm(inch)
mm(inch)
26
ARUN260LLS4
ARUN140LLS4
ARUN120LLS4
6.6 × 1 + 5.0 × 1
14.6 × 1 + 11.0 × 1
42(52)
193 × 1 + 183 × 1
425 × 1 + 403 × 1
(920 × 1,680 × 760) × 2
(36-7/32 × 66-5/32 ×
29-29/32) x 2
Ø 19.05(3/4)
Ø 34.9(1-3/8)
28
ARUN280LLS4
ARUN160LLS4
ARUN120LLS4
6.0 × 1 + 5.0 × 1
13.2 × 1 + 11.0 × 1
45(56)
208 × 1 + 183 × 1
459 × 1 + 403 × 1
(1,240 × 1,680 × 760) × 1
+ (920 × 1,680 × 760) × 1
(48-13/16 × 66-5/32 × 29-29/32) x 1
+ (36-7/32×66-5/32×29-29/32)
Ø 19.05(3/4)
Ø 34.9(1-3/8)
30
ARUN300LLS4
ARUN180LLS4
ARUN120LLS4
6.0 × 1 + 5.0 × 1
13.2 × 1 + 11.0 × 1
49(60)
249 × 1 + 183 × 1
549 × 1 + 403 × 1
(1,240 × 1,680 × 760) × 1
+ (920 × 1,680 × 760) × 1
(48-13/16 × 66-5/32 × 29-29/32) x 1
+ (36-7/32×66-5/32×29-29/32)
Ø 19.05(3/4)
Ø 34.9(1-3/8)
INSTALLATION PROCESS
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