Samsung RVMH050CBM0 User manual

RUSSIAN ENGLISH
INSTALLATION MANUAL
MANUAL DE INSTALACIÓN
MANUEL D’INSTALLATION
MANUALE D’INSTALLZIONE
MANUAL DE INSTALAÇÃO
INSTALLATIONS-HANDBUCH
E°XEIPI¢IO E°KATA™TA™H™
àçëíêìäñàü èé ìëíÄçéÇäÖ
System Air Conditioner
Aire acondicionado sistemático
Climatiseur numérique multifonctionnel
Sistema Aria Condizionata
Sistema Ar Condicionado
Klimaanlage System
™‡ÛÙËÌ· ∫ÏÈÌ·ÙÈÛÌÔ‡
ëËÒÚÂÏÌ˚ ÇÓÁ‰Û¯Ì˚ äÓ̉ˈËÓÌÂ
ESPAÑOL
FRANÇAIS
ITALIANO
PORTUGUÊS
DEUTSCH
E S F I P D G R DB98-05168A(2)
E§§HNIKA
RVMH050CBM0
RVMH060GBM0
RVMH060GDM0
RVMH080GAM0
RVMH100GAM0
RVMH100GCM0
RVMH100FAM0
Heat pump
RVMC035EBM0
RVMC050CBM0
RVMC060GAM0
RVMC060GAM1
RVMC070FAM0
RVMC100GAM0
RVMC100FAM0
Cooling only

■ Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
OO
OOPP
PPTT TTII IIOO OONN NNAA AALL LLAA AACC CCCC CCEE EESS SSSS SSOO OORR RRII IIEE EESS SS
■ Preparation for Outdoor Unit Installation . . . . . . . . . . . . . . . . . . . . 4
■ Deciding on Where to Install the Outdoor Unit . . . . . . . . . . . . . . . . 5
■ Outdoor Unit Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
■ Connecting the Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
■ Piping and refnet joint selection . . . . . . . . . . . . . . . . . . . . . . . . . . 12
■ Connecting the Refrigerant Pipe . . . . . . . . . . . . . . . . . . . . . . . . . 16
■ Performing Leak Test & Vacuum Drying . . . . . . . . . . . . . . . . . . . 17
■ Insulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
■ Adding Refrigerant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
■ Checking Correct Grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
■ Setting Up Option Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
■ Functions of KEY on the Outdoor Unit PCB . . . . . . . . . . . . . . . . 26
■ Checking and Testing Operations . . . . . . . . . . . . . . . . . . . . . . . . 28
■ Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
OO
OOUU UUTT TTDD DDOO OOOO OORR RRUU UUNN NNII IITT TTII IINN NNSS SSTT TTAA AALL LLLL LLAA AATT TTII IIOO OONN NN
Chapter
Chapter
Contents
Type of outdoor
unit
ABCDE
Design
Model
RVMC035EBM0
B-1
RVMC050CBM0
RVMH050CBM0
B-2
RVMH060GBM0
RVMH060GDM0
RVMC060GAM0
RVMC060GAM1
RVMC070FAM0
RVMH080GAM0
RVMH100GAM0
RVMH100GCM0
RVMH100FAM0
RVMC100GAM0
RVMC100FAM0
E-2

E-3
■Preparation for Outdoor Unit Installation . . . . . . . . . . 4
■Deciding on where to Install the Outdoor Unit . . . . . . 5
■Outdoor Unit Installation . . . . . . . . . . . . . . . . . . . . . . . 7
■Connecting the Cable . . . . . . . . . . . . . . . . . . . . . . . . . 8
■Piping and refnet joint selection . . . . . . . . . . . . . . . . 12
■Connecting the Refrigerant Pipe . . . . . . . . . . . . . . . 16
■Performing Leak Test & Vacuum Drying . . . . . . . . . . 17
■Insulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
■Adding Refrigerant . . . . . . . . . . . . . . . . . . . . . . . . . . 20
■Checking Correct Grounding . . . . . . . . . . . . . . . . . . 24
■Setting Up Option Switches . . . . . . . . . . . . . . . . . . . 25
■Functions of KEY on the Outdoor Unit PCB . . . . . . . 26
■Checking and Testing Operations . . . . . . . . . . . . . . . 28
■Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
OO
OOUU UUTT TTDD DDOO OOOO OORR RRUU UUNN NNII IITT TTII IINN NNSS SSTT TTAA AALL LLLL LLAA AATT TTII IIOO OONN NN
ENGLISH
Chapter

E-4
Moving the Outdoor Unit by Wire Rope
Fasten the outdoor unit by two 8m or longer wire ropes as
shown at the figure. To protect damage or scratches, insert
a piece of cloth between the outdoor unit and rope, then
move the unit.
Plate protection cloth
Wire rope
Preparation for Outdoor Unit Installation
How to choose Refnet Joint
A user must purchase a refnet joint to connect the indoor unit to the outdoor
unit.
◆
Choose the first refnet joint depending on the table below.
MXJ-0906A
MXJ-1206A
MXJ-2212A
MXJ-3112A
ABCDEFGHI JK
420
420
460
460
80
80
90
90
9.7
12.8
22.4
31.9
-
-
19.2
28.7
-
-
16.0
25.6
9.7
12.8
19.2
25.6
6.5
9.7
16.0
19.2
-
6.5
12.8
16.0
9.7
12.8
16.0
19.2
6.5
9.7
12.8
16.0
-
6.5
-
12.8
Refnet joint
Distance
(mm)
Inner diameter (mm)
◆
Choose the others according to the total capacity of indoor units.
16000W or less
16000W or more
Total capacity of
indoor units
MXJ-0906A
MXJ-1206A
MXJ-2212A
MXJ-3112A
Refnet joint
Liquid Gas

Deciding on Where to Install the Outdoor Unit
E-5
ENGLISH
Outdoor Unit
◆The outdoor unit must NEVER be placed on its side or upside down, as the
compressor lubrication oil will run into the cooling circuit and seriously
damage the unit.
◆Choose a location that is dry and sunny, but not exposed to direct sunlight or
strong winds.
◆Do not block any passageways or thoroughfares.
◆Choose a location where the noise of the air conditioner when running and
the discharged air do not disturb any neighbours.
◆Choose a position that enables the pipes and cables to be easily connected
to the indoor unit.
◆Install the outdoor unit on a flat, stable surface that can support its weight
and does not generate any unnecessary noise and vibration.
◆Position the outdoor unit so that the air flow is directed towards the open
area.
◆Maintain sufficient clearance around the outdoor unit, especially from a radio,
computer, stereo system, etc.
◆If the outdoor unit is installed at a height, ensure that its base is firmly fixed in
position.
◆Make sure that the water dripping from the drain hose runs away correctly
and safely.
1.5m or more
Indoor Unit
Fuse
Outdoor
Unit
Remote Controller
1m or more
1m or more
1.5m or more
1.5m or more
1.5m or more
Fuse
Stereo
◆ You have just purchased a system air conditioner and it
has been installed by your installation specialist.
◆This device must be installed according to the national
electrical rules.
CC
CCAA AAUU UUTT TTII IIOO OONN NN

Deciding on Where to Install the Outdoor Unit (cont.)
E-6
If there is an obstacle around the outdoor unit...
◆If an obstacle in front of the outdoor unit is higher than 1500mm, the half of
additional height should be added to the S1.
◆If an obstacle behind the outdoor unit is higher than 500mm, the half of
additional height should be added to the S2.
❋Max. height of obstacle
- Front side : 1500mm or less
- Air inlet side : 500mm or less
- Right/Left side : No limit
100 or more 100 or
more
300 or
more
Front
500
or more
Front
300 or
more
500 or
more 100 or more 100 or more
100 or
more 100 or more
100 or more 100 or
more
300 or
more
Front
500
or more Front
100 or
more
500 or
more 200 or more 200 or more
100 or
more 100 or more
Unit : mm
Space Requirements for Outdoor Unit
If there is no obstacle around the outdoor unit...
S1 S2
Unit : mm
1500 h1
500 h2
Air inlet
Front

Outdoor Unit Installation
E-7
ENGLISH
Fix the outdoor unit with anchor bolts.
◆ The anchor bolt must be 20mm or higher from the base
surface.
NN
NNoo oott ttee ee
920
1157
667 637 597
Piping
Type D
Type B
Type A
To prevent the unit against a wild
animal or something, cover part
after connecting the pipe.
800
932
390 416 440
660
880
310 340
364
Anchor bolt hole
Type E
654
990
780 807 827
Anchor bolt hole
Anchor bolt hole
Anchor bolt hole
Type C
600
360
638 600 668
Anchor bolt hole
Unit : mm
The outdoor unit must be installed on a rigid and stable base to avoid
any increase in the noise level and vibration, particularly if the outdoor
unit is to be installed in a location exposed to strong winds or at a
height, the unit must be fixed to an appropriate support(wall or ground).

Outdoor Unit Installation (cont.)
E-8
◆ Make a drain outlet around the base for outdoor unit
drainage.
◆If the outdoor unit is installed on the roof, you have to check
the ceiling strength and waterproof the unit.
CC
CCAA AAUU UUTT TTII IIOO OONN NN
Outdoor Unit Support
20mm
Anchor bolt
Outdoor
Unit ➔
Outdoor Unit
Support
Base
Surface
➔
Connecting the Cable
Two electronic cables must be connected to the outdoor unit.
◆ The connection cord between indoor unit and outdoor units
◆ The power cable between outdoor unit and auxiliary circuit breaker.
Example of Air Conditioner System
MCCB
3
MCCB
1
ELB
ELB
MCCB
MCCB
Outdoor Unit
Communication
Power cable
Communication
Indoor Unit
Earth
When using ELBs for 3 phase and 1 phase
MCCB
3 MCCB 3
ELB
Outdoor Unit
When using an ELB for 3 phase 4 wires
❋ If an outdoor unit is installed in a place in danger of an electric leak or submergence,
you must install the ELB.

Connecting the Cable (cont.)
E-9
ENGLISH
Power Cable Specification
❋ The power cable is not supplied with air conditioner.
IM ORTANT : All power supply cables/interconnection cables and communication cables must be type HOS-RN-F (at least).
Power Supply
3 Phase
Max/Min
(V)
MCCB ELB
Type of
outdoor
unit
Earth
Cable
Commu-
nication
Cable
Power
Supply
Power
Cable
Length Length
Power
Supply Max/Min
(V)
-
208-
230V~
/60Hz 253/187 25A 25A
15A
15A
A
C
D
E
----- -
3.5mm
2
,
CV,
3Wires
-
220-
240V~
/50Hz 264/198 15A
15A
5.5mm
2
,
HOS-RN-F,
3 Wires
30A
-
-
Frame:50A
Trip:30A
-
-
456/342
253/187
-
380-
415V~
/50Hz
208-
230V~
/60Hz
-
18m
or less
2.0mm
2
,
HOS-RN-F,
2 Wires
2.0mm
2
,
HOS-RN-F,
2 Wires
8.0mm
2
,
HOS-RN-F,
3 Wires
18m~28m
15A
-
220-
240V~
/50Hz 264/198 15A
5.5mm
2
,
HOS-RN-F,
3 Wires
20A
Frame:30A
Trip:20A
456/342
380-
415V~
/50Hz
18m
or less
8.0mm
2
,
HOS-RN-F,
3 Wires
18m~28m
2.0mm
2
,
HOS-RN-F,
2 Wires
2.0mm
2
,
HOS-RN-F,
2 Wires
15A
-
-
220-
240V~
/50Hz 264/198 15A
5.5mm
2
,
HOS-RN-F,
3 Wires
8.0mm
2
,
HOS-RN-F,
3 Wires
30A
Frame:50A
Trip:30A
456/342
380-
415V~
/50Hz
18m
or less
8.0mm
2
,
HOS-RN-F,
3 Wires
14.0mm
2
,
HOS-RN-F,
3 Wires
18m~28m
208-
230V~
/60Hz 253/187
B
18m
or less
18m
or less
-
18m~28m
15A
15A
50A
Frame:75A
Trip:50A
253/187
208-
230V~
/60Hz
208-
230V~
/60Hz 253/187
18m
or less
18m~28m
14.0mm
2
,
HOS-RN-F,
3 Wires
22.0mm
2
,
HOS-RN-F,
3 Wires
20A
20A
75A
Frame:100A
Trip:75A
253/187
208-
230V~
/60Hz
208-
230V~
/60Hz 253/187
20m
or less
20m~50m
5.5mm
2
,
HOS-RN-F,
3 Wires
8.0mm
2
,
HOS-RN-F,
3 Wires
15A
15A
30A
Frame:50A
Trip:30A
418/342
308V
/60Hz
220V
/60Hz 242/198
18m
or less
18m~28m
8.0mm
2
,
HOS-RN-F,
3 Wires
14.0mm
2
,
HOS-RN-F,
3 Wires
20A
20A
50A
Frame:75A
Trip:50A
456/342
380-
415V~
/50Hz
220-
240V~
/50Hz 264/198
20m
or less
20m~50m
-
---
18m
or less
18m~28m
18m~28m
Ø 1.6mm,
HOS-RN-F,
1 Wire
0.75~
1.25mm2
HOS-RN-F,
2 Wires
Power
Cable
MCCB ELB
Single Phase

Connecting the Cable (cont.)
E-10
Wiring Diagram of Power Cable
When using ELBs for 3 phase and 1 phase
When using an ELB for 3 phase 4 wires
MCCB
ELB ELB
MCCB MCCB
Power Supply
Electrical component box
Indoor Unit
Communication
Cable
Single
Phase 3 Phase
3 Wires
Connection cord 3 Phase
Power Cable
Single
Phase
AC220V
Cable
clamp
Part A Part B
MCCB
ELB
MCCB
Power Supply
Electrical component box
Indoor Unit
Communication
Cable
3 Phase
4 Wires
Connection cord 3 Phase
Power Cable
Cable
clamp
Cut off the partAand B
◆ Case 1
◆ Case 2
Communication
Cable
Connection cord 3 Phase
Power Cable
Single
Phase
AC220V
Cable
clamp

E-11
ENGLISH
Wiring Diagram of Connection Cord
Connection Cord Specifications
Indoor Unit 1
Outdoor Unit Type A Outdoor unit
Indoor Unit 2 Indoor Unit 3
220V/60Hz
220-240V~/50Hz
208-230V~/60Hz
±10%
2.0mm2
(HOS-RN-F,
2wires)
Ø1.6mm
( HOS-RN-F ,
1wire)
0.75~
1.25mm20.75~ 1.25mm2
Power Supply (Single Phase) Earth Cable
Communication
Cable (HOS-
RN-F, 2wires)
Home server
(HOS-RN-F,
2wires)
Power Supply
Max/Min(V) Power Cable
◆ When connecting cables, make the cable pass through the
cable tube as shown at the figure.
◆Must keep the cable in a protection tube.
◆Keep distances of 50mm or more between power cable and
communication cable.
CC
CCAA AAUU UUTT TTII IIOO OONN NN
Gas refrigerant pipe
Cable tube
Communication
cable
Connection cord
Power cable
Liquid refrigerant pipe
- Max. length of communication cable : 120m
- Whole length of cable : 240m
- Allowable branches : 10

Piping and refnet joint selection
E-12
Outdoor unit
Outdoor unit
Outdoor unit
1
1
2
2
2
3
3
3
4
4
5
5
5
6
6
7
7
7
8
8
8
6
1
4
1
1
2
2
3
3
4
4
5
5
6
6
8
8
7
7
Outdoor unit
Outdoor unit
Distributor kit
Distributor kit
Distributor kit
Examples of using only Refnet joint (during 8 rooms installation)
Examples of using both Refnet joint and distributor kit
(during 8 rooms installation)

E-13
ENGLISH
Limitation when piping is installed by using only Refnet joint
(during 6 rooms installation)
Outdoor unit
a
b
12345
6
cde
hgijk
f
H1
H2
Max.
allowable
length
Distance of the
remotest indoor unit
from the outdoor unit
Actual length
(m)
Equivalent
length (m)
Max.
allowable
height
difference
Height difference between outdoor unit
and indoor unit (m) = H1(the figures in
the parenthesis is applied when the
outdoor unit is installed below the
indoor unit)
Height difference between
indoor unit = H2
Allowable length after branching
The distance from the first refnet joint to the indoor unit :
shorter than 30m ex) b+c+d+e+f ≤30m, b+c+i ≤30m
The distance between the max piping and min piping length
from 1 refnet joint ≤20m
ex) In case of Type E a+b+c+d+e+f ≤100m
ex) In case of Type E ≤125m
15m
70
87
30 (30)
100
125
50 (40)
-
-
-
-
-
-
Type A Type B-1 Type B-2 Type C Type D Type E
Item Outdoor unit

E-14
Piping and refnet joint selection (cont.)
Requirement when piping is installed using simultaneously both
refnet joint and contributor kit (during 6 rooms installation)
Outdoor unit
a
b
123 5
6
cd
eh
gij
fH1
H2
4
Max.
allowable
length
Distance of the
remotest indoor unit
from the outdoor unit
Actual length
(m)
Equivalent
length (m)
Max.
allowable
height
difference
Height difference between outdoor unit
and indoor unit (m) = H1 (the figures
in the parenthesis is applied when the
outdoor unit is installed below the
indoor unit)
Height difference between
indoor unit = H2
Allowable length after branching The distance from the first refnet joint to the indoor unit :
ex) b+c+d+j ≤30m, b+c+d+h ≤30m
Between distributor kit and indoor unit ≤30m
ex) In case of Type E a+b+c+d+j ≤100m
ex) In case of Type E ≤125m
15m
70
87
30 (30)
100
125
50 (40)
-
-
-
-
-
-
Type A Type B-1 Type B-2 Type C Type D Type E
Item Outdoor unit
Distributor kit

E-15
ENGLISH
Install the oil trap
◆Install the oil trap in case that the outdoor unit is situated higher than the
indoor unit.
◆Install the oil trap only in the gas pipe for cooling operation.
◆Install the oil trap only between the outdoor unit and the first refnet joint.
In this case, it must be installed every 10 meters from the outdoor unit.
◆The radius of curvature(R) is as followings.
◆The height of the oil trap(H) : 4R ≤H ≤6R
RH
Outdoor Unit
Oil trap
(gas pipe:
must be
installed
every 10m)
Indoor unit
Refnet joint
The diameter of
the gas pipe(D)
The radius of
curvature(R)
12.70
25
or more
15.88
32
or more
19.05
38
or more
22.23
41
or more
25.40
51
or more
28.60
57
or more
31.75
60
or more
(Unit : mm)
Piping selection
Piping size
Outdoor unit ~ The first refnet joint piping
Refnet joint ~ refnet joint piping
Refnet joint ~ indoor unit piping
Liquid pipe
Gas pipe
Liquid
pipe
Gas
pipe
Capacity limit
of rear indoor
unit
Capacity limit
of rear indoor
unit
Less than 16000W
More than 16000W
Less than 9000W
9000W ~ 16000W
16000W ~ 21000W
More than 21000W
Liquid
pipe
Gas
pipe
Capacity limit
of rear indoor
unit
Capacity limit
of rear indoor
unit
Less than 4700W
More than 4700W
Less than 4700W
4700W ~ 8500W
More than 8500W
-
-
-
-
ø9.52 X t0.8
ø9.52 X t0.8
ø6.35 X t0.7
ø9.52 X t0.8
ø12.70 X t0.9
ø15.88 X t1.0
ø19.05 X t1.2
ø15.88 X t1.0
ø19.05 X t1.2
-
---
-
ø12.70 X t0.8
ø25.40X t1.2ø25.40X t1.2
ø12.70 X t0.8
ø19.05 X t1.2 ø22.23 X t1.2 ø28.60 X t1.2
ø28.60 X t1.2
ø25.40 X t1.2
Type A
Outdoor unit Type B-1 Type B-2 Type C Type D Type E
(Unit : mm)

Connecting the Refrigerant Pipe
Refrigerant Piping
The refrigerant pipe can be connected from the bottom or front of the
outdoor unit. You have to use seamless copper pipe for the piping and check
the length and height difference between indoor and outdoor unit.
You should also check the pipe length after installing the refnet joint.
For maximum allowable pipe length and height difference,
refer to page 15.
Connect the refrigerant pipe to each pipe, tightening the nuts, first manually
and then with a wrench, a spanner applying the following torque.
Outer Diameter Torque (kgf•cm)
6.35 mm (1/4") 144~176
9.52 mm (3/8") 333~407
12.70 mm (1/2") 504~616
15.88 mm (5/8") 630~770
19.05 mm (3/4") 990~1210
22.23 mm (7/8") 990~1210
1
Install the refnet joint horizontally or vertically ; for choice of the refnet joint,
refer to page 6.
2
Fix the refnet joint insulation to the refnet joint as shown at figure.
3
◆Make a distinction between liquid refrigerant pipe and gas
refrigerant pipe.
NN
NNoo oott ttee ee
Liquid Gas
Bend the pipe or use
the elbow. Cut off the gas piping and use the elbow.
"A"
"A"
15
15
Cable-tie
Refnet joint insulation
Refnet joint
Contact surface
From the Front
From the bottom
Flange
Gas refrigerant pipe
Filter
Liquid refrigerant pipe
Flange Flare nut
Remove the stop valve cover before connecting
Gas refrigerant
pipe
E-16
Installation of piping filter
◆Install the piping filter in the liquid refrigerant pipe using flare nuts.
You should install the filter within 1m from the outdoor unit.
◆Specifications of piping filter
- Size: 20µm
- Max applicable pressure: 40kgf/cm
2
- Types
1-way filter for cooling only model
2-way filter for heat pump model
Gas refrigerant pipe
Liquid refrigerant pipe
Outdoor
Unit

Performing Leak Test & Vacuum Drying
Before completing the installation(insulation of the hose and piping),
you must check that there are no gas leaks and remove air in the unit.
Purge the refrigerant pipes and perform the vacuum test.
1
Set the outdoor unit valves to the open position, then the refrigerant circulate
through whole air conditioner system.
8
Inject nitrogen into the pipes until the pressure becomes 2kg/cm2at least.
2
Check for gas leaks by using soapy water.
3
Let the pipes under 28kg/cm2pressure for 24 hours, then check that the
pressure has been decreased.
4
Discharge the nitrogen.
5
Make the pipes vacuous.
6
If the piping is longer than the standard length, refrigerant must be added.
For further details on adding refrigerant, refer to page 20.
7
◆The pressure should not be increased for 1 minute.
NN
NNoo oott ttee ee
E-17
ENGLISH

Performing Leak Test & Vacuum Drying (cont.)
◆ When you use the service port, always use a charging hose, too.
◆Check the leakage of refrigerant gas after tightening the cap.
◆ Must use a spanner and wrench when you open/tighten the stop valve.
CC
CCAA AAUU UUTT TTII IIOO OONN NN
Using Stop Valve
Open the cap and turn the stop valve counterclockwise by using a hexagonal
wrench.
Turn it until the axis is stopped.
1
2
Tighten the cap securely.
3
To Open the Stop Valve
◆Do not apply excessive force to the stop valve and always use
special instruments. Otherwise, the stopping box can be
damaged and the back sheet can leaks.
◆If the watertight sheet leaks, turn the axis back by half, tighten
the stopping box, then check the leakage again. If there is no
leakage any more, tighten the axis entirely.
NN
NNoo oott ttee ee
Remove the cap.
Turn the stop valve clockwise by using a hexagonal wrench.
1
2
Tighten the cap securely.
4
Tighten the axis until the valve reached the sealing point.
3
To Close the Stop Valve
Cap
Service
port
Axis Sealing
point
E-18

Insulation
Once you have checked that there are no leaks in the system, you can
insulate the piping and hose.
To avoid condensation problems, place an insulator around each
refrigerant pipe.
1
If you have not insulated the refnet joint, you should insulate it.
For the refnet joint insulation, refer to page 16.
2
◆When insulate the pipe, be sure to overlap the insulation.
◆You have to use more than 120°C insulation(T13.0 or thicker
Acrylonitrile Butadien Rubber) for the gas refrigerant pipe.
NN
NNoo oott ttee ee
E-19
ENGLISH
No gap
NBR(T13.0 or thicker)

Adding Refrigerant
The outdoor unit is loaded with sufficient refrigerant for the standard
piping. Thus, refrigerant must be added if the piping is lengthened.
This operation can only be performed by a qualified refrigeration
specialist. For quantity of adding refrigerant, refer to page 21.
Check that the stop valve is closed entirely.
1
Charge the refrigerant through the service port of liquid stop valve.
2
If you cannot charge the refrigerant according to the upper steps,
following these:
3-1 Open both liquid stop valve and gas stop valve.
3-2 Operate the air conditioner by pressing the key 2 on the outdoor
unit PCB.
3-3 About 30 minutes later, charge the refrigerant through the service
port of gas stop valve.
3
◆Do not charge the refrigerant through the gas side service port.
NN
NNoo oott ttee ee
◆If necessary, refer to the pressure table classified by outdoor
temperature.
NN
NNoo oott ttee ee
21 8
R
22
Liquid side stop valve(service port)
Outdoor unit
Indoor unit
Balance Vacuum pump
Gas side stop valve(service port)
E-20