Carrier 53KHET 12 User manual

Rev. (0) - 2012
Quality
Management System
ISO 9001 : 2008
Certicate No.: QS-5519HH
Enviromental
Management System
ISO 14001 : 2004
Certicate No : 12 104 30334 TMS
Safety
Management System
BS OHSAS 18001 : 2007
Certicate No : 12 116 30334 TMS
220-240V ~, 50Hz
R
2
2
03502821
Carrier is committed to continuously improving its products according to national and international standards
to ensure the highest quality and reliability standards, and to meet market regulations and requirements.
All specications subject to change without prior notice according to Carrier policy of continuous development.
INSTALLATION MANUAL
Hi Wall Split Air Conditioners
53KHET 12-18-24 Cool Only
53QHET 12-18-24 Heat Pump

TABLE OF CONTENTS
PAGENO.
1. GENERAL NOTES TO INSTALLER 1
2. PRECAUTIONS BEFORE INSTALLATION 2
3. SPLIT SYSTEM DESCRIPTION 3
4. MODELS 4
5. OPERATING LIMITS 4
6. DIMENSIONS AND WEIGHT OF INDOOR UNIT 5
7. DIMENSIONS AND WEIGHT OF OUTDOOR UNIT 5
8. SELECTING INSTALLATION LOCATION OF INDOOR UNIT 6
9. SELECTING INSTALLATION LOCATION OF OUTDOOR UNIT 8
10. INSTALLATION LOCATION – CHECK LIST 12
11. INSTALLTION ACCESSORIES 13
12. INSTALLATION CHART 15
13. INDOOR UNIT INSTALLATION
12.1 PREPARING UNIT BEFORE INSTALLATION 16
12.2 INSTALLATION STEPS 17
14. REMOTE CONTROL INSTALLATION 20
15. OUTDOOR UNIT INSTALLATION
15.1 PREPARING UNIT BEFORE INSTALLATION 21
15.2 INSTALLATION STEPS 21
16. CONNECTING REFRIGERANT PIPING LINES 23
17. CONNECTING CONDENSATE DRAIN LINE 38
18. CONNECTING ELECTRICAL WIRING 40
19. FINISHING INSTALLATION 46
20. TEST RUNNING 47
21. ADJUSTING SUPPY AIR DIRECTION 50
22. AFTER INSTALLATION CHECK LIST 52
23. SELF DIAGNOSTIC FUNCTION FOR MALFUNCTIONS DETECTION 54

1
1. GENERAL NOTES TO INSTALLER
Split room air conditioner has been carefully designed and manufactured under strict Quality Control
conditions.
Therefore you are completely responsible for proper installation completion and operation of the
air conditioner.
Carefully read the manual carefully before proceeding with the installation to ensure correct
installation. This manual describes installation instructions to help ensure trouble free operation
and extended life of the air conditioner.
Make sure all accessory parts are with the system before beginning installation.
You will need the following tools for installation:
1. Standard screwdriver 10.
Flaring tool set
2. Phillips head screw driver 11.
Pipe bender
3. Electric drill, Hole core drill 12.
Hexagonal wrench ( 4mm )
4. Measure tape 13.
Torque wrench
5. Water level gauge 14.
Vacuum pump
6. Pipe clamp 15.
Gas leak detector
7. Pipe cutter 16.
Gauge manifold
8. Spanner ( half union ) 17.
Thermometer
9. Reamer 18.
Electrical millimeter
19.
Measuring tape
After completion of installation, perform a run test and give the customer full
instructions on the correct operation of the air conditioner including:
•Turning the unit on and off. •Removal and cleaning of the air filters.
•Functions of the remote control. •Re-installation of air filters after cleaning
Leave the owner manual with the customer so that it can to be used during operation of the air
conditioner.
Leave the installation manual with the customer so that it can be used for any service and
maintenance operations.
Advise the customer to the tips of energy saving while operating the air conditioner as
mentioned in the owner’s manual.

2
2. PRECAUTIONS BEFORE INSTALLATION
SAFETY PRECAUTIONS
•Installation and maintenance of air conditioning equipment can be hazardous due to system
pressures, electrical components and rotating parts.
•The installation and maintenance of the air conditioner must be carried out by trained and
qualified technicians from Carrier or one of Carrier authorized dealers.
•After unpacking, Please check carefully for possible damage the indoor and outdoor units
of the air conditioner.
•Before undertaking any work on the indoor and outdoor units of the air conditioner, make sure
to disconnect the power supply.
WARNING
•This installation manual describes the installation procedures of split room air conditioner
consisting of an outdoor unit and an indoor unit manufactured by Carrier.
•The installation of air conditioner must be according to applicable national installation
standards.
•During installation, Proceed first with refrigerant connections between indoor and outdoor
units, and only then make the electrical connections.
Similarly, when disassembling, disconnect the electrical wiring first and only then open
refrigerant connections.
What is not covered in our warranty?
1- Failure due to wrong electrical connections between the electrical power supply and
circuit breaker of air conditioner leading to fire due to short-circuiting. As these electrical
connections are owner’s responsibility.
2- Failure due to Misuse, Abusing, overloading, negligence of air filters cleaning and
negligence of instructions included in the owner’s manual.
3- Failure due to Accident / Weather Natural catastrophe, accident due to bad weather
(Hail Storm, Sand Storm, lightning, Flooding, Acid Rain and Air Borne fallout, etc).
4- Failure due to damages during transport done through the owner.
5- Failure due to any modifications in the product done through the owner.
6- Failure due to Installation or Service and Maintenance or repair works
done through the owner.
7- Product normal sound ( refrigerant – moving parts – plastic parts )
8- Inconvenience or commercial loss is not covered.
The decision of Carrier in ascertaining the same will be final. Any such repairs will be carried -
out at the expense of the owner ( purchaser ).
!

3
3. SPLIT SYSTEM DESCRIPTION
Split System Models Sizes 12K – 18K
Split System Model 24K
1: Remote control signal receiver. 2: LCD Display panel
3: Panel frame 4: Chassis
5: Front panel 6: Horizontal supply air louver
7: Vertical supply air louvers 8: Air filters
9: Manual control button 10: Power cord
11: Inter-connecting refrigerant piping
and electrical cables between
indoor and outdoor units. 12: Drain hose
13: Wireless remote control
In
doo
r
U
ni
t
3
8Air Inlet 4
5
Outdoor Unit
69
10
12
13
Air outlet
11
7
12
In
doo
r
U
ni
t
3
8Air Inlet 4
5
Outdoor Unit
69
10
12
13
Air outlet
11
7
12

4
4. MODELS
HEATPUMP Coolonly
System
Model Indoor Unit Model Outdoor Unit Model
System
Model Indoor Unit Model Outdoor Unit Model
53QHET12-708F 42QHET12-708F 38QHET12-708
53KHET12-708F 42KHET12-708F 38KHET12-708
53QHET18-708F 42QHET18-708F 38QHET18-708
53KHET18-708F 42KHET18-708F 38KHET18-708
53QHET18-708F 42QHET18-708F 38QHET18-708
53KHET24-708F 42KHET24-708F 38KHET24-708
Notes:
53 = Split System
42 = Indoor Unit
38 = Outdoor Unit
Q = Heat Pump
K = Cool Only
H = Hi Wall System
E = Elite Series
T = High Ambient
12 = System Size
7 = Nominal Power Supply 220-240V~50Hz 1Ph
0 = Wireless Remote Control
8 = Miraco – Carrier
F = Ionizer
5. OPERATING LIMITS *
COOLING HEATING
Difference Dry Bulb
Temp. C° Wet Bulb Temp. C° Difference Dry Bulb Temp. C° Wet Bulb Temp. C°
Indoor temperature
Maximum
Minimum
32
21
23
15 Indoor temperature
Maximum
Minimum
27
20
Outdoor temperature
Maximum
Minimum
52
21
Outdoor temperature
Maximum
Minimum
24
2
18
1
MAIN POWER SUPPLY
Nominal
220-240V~50Hz 1Ph
Min. Voltage 198
Max. Voltage 254
NOTES:
* When the system is operated above or below these limits for a long time, system
diagnostics may detect a malfunction and the system will not operate properly.
** During heat pump operation, the system will undergo several defrost cycles to eliminate ice
that might possibly collect on the outdoor unit in very low ambient temperatures.
After completion of defrost cycle, the system will normally operate

5
860
665
665
350
384
575
371
350
6. DIMENSIONS AND WEIGHT OF INDOOR UNIT
DIMENSIONS (mm)
Indoor Unit
Model Type Dimensions (mm) Weight Kg
W H D
42KHET12-708F Cool Only 790 265 195 9
42QHET12-708F Heat Pump
42KHET18-708F Cool Only 920 292 225 12
42QHET18-708F Heat Pump
42KHET24-708F Cool Only 1080 330 228 17
42QHET24-708F Heat Pump
7. DIMENSIONS AND WEIGHT OF OUTDOOR UNIT
DIMENSIONS (mm)
Model
Mounting
Dimensions
(mm)
Unit
Dimensions
(mm) Weight
A B C D E
38KHET12
38QHET12 549 276 780 540 250 33
38KHET18
38QHET18 530 290 760 590 285 39.5
Weight
Model Kg
38KHET24
38QHET24 58.7
WD
H
Kg
Kg
C
D
B
A
E

6
8. SELECTING INSTALLATION LOCATION OF INDOOR UNIT
8.1 CONSIDERATIONS OF SELECTING INSTALLATION LOCATION
Select installation location which allows
minimum clearances for free air circulation
and easy accessibility for service and
maintenance.
•Select outlet location of piping from
indoor unit which allows easy access to
the ends of refrigerant piping lines to
facilitate refrigerant leak testing and to
facilitate service and maintenance.
•Select installation location so that the
wall hole required to pass the outlet
refrigerant piping lines, electrical cables
and condensate drain line from indoor
unit can be in one of the following Four
outlet locations as indicated by (1), (2),
(3) and (4)
Avoid installation location which can lead to
excessive length of refrigerant piping lines
between indoor and outdoor units
Avoid installation location which can lead to
excessive height difference between indoor
and outdoor units
Dimensions (mm)
Back right
outlet location
Back left
outlet location
Right side
outlet location
Left side
outlet location

7
SELECTING INSTALLATION LOCATION OF INDOOR UNIT (Cont.)
CONSIDERATIONS OF SELECTING INSTALLATION LOCATION (Cont.)
Select installation location which permit the
unit to deliver air to all of the space to be
uniformly air-conditioned.
Avoid installation of the indoor unit at too
low a position.
Avoid installation location which is
subjected to direct sun light that may affect
performance of the unit
Avoid installation location which is near to
heat sources that may affect performance
of the unit.
Avoid installation location where there are
obstacles such as curtains and such as
curtains, furniture near the air inlet or outlet
that may affect air flow and performance of
the unit.
Avoid an installation location, which has an
environment with oil vapors.
Avoid an installation location which has an
environment affected by high frequency
waves generated as from radio equipment’s
welders and medical equipment’s.
Select installation location which has flat wall surface to allow easy and safe installation.
The wall structure should be strong enough to carry the unit weight and avoid
deformation, rupture or vibration during operation.
1900 mm
or more
obstacle

8
9. SELECTING INSTALLATION LOCATION OF OUTOOR UNIT
9.1 INSTALLATION LOCATIONS
The outdoor unit can be installed in any outside location, on a wall, on a roof or on a ground level.
9.2 CONSIDERATIONS FOR SELECTING INSTALLATION LOCATIONS
Avoid installation location which can lead
to excessive distance between outdoor
and indoor units to avoid alteration on
system cooling and heating performance.
Avoid installation location which can lead
to excessive height difference between
indoor and outdoor units to avoid
alteration on system cooling and heating
performance.
Avoid installation location which can lead
to unnecessary turns and bends in the
refrigerant piping lines connecting
outdoor unit with indoor unit.
Avoid installation location where there are
obstacles near the air outlet or inlet that
may affect air flow and performance of the
unit
Avoid multiple unit installation with units
facing each other and blowing discharged
air into each other.

9
SELECTING INSTALLATION LOCATION OF OUTOOR UNIT (Cont.)
CONSIDERATIONS FOR SELECTING INSTALLATION LOCATION (Cont.)
Select the installation location of outdoor unit which is able to support operating weight
of outdoor unit, and not cause vibration.
Select the installation location of outdoor unit which is far away from the direct
sunlight.
Select the installation location of outdoor unit which is far away from heat sources,
steam or flammable gas.
Select the installation location of outdoor unit which is free of dust or any material,
which can cause clogging of condenser coil. When installing unit on the ground, select
a location not subjected to flooding.
Avoid installation location which is full of oil vapors which may result in malfunction.
Avoid installation location which is full of sulfuric gas which may result in malfunction.
Select installation location where the operation noise and discharged air are not
disruptive to your neighbors.
When the installation is made on the rooftop or other places subject to strong wind :
When the outdoor unit is to be installed on the rooftop or at the places where there are no other
buildings around. it is required to avoid the strong wind from blowing directly into the air outlet of the
outdoor unit so as to prevent the negative impacts on cooling or heating performances due to
insufficient airflow of the outdoor unit heat exchanger and to prevent from faulty performances.
When there are walls in the vicinity, the air outlet
should face the wall and keep a space of 500mm
from the wall.
When the air outlet is affected by the strong wind,
the installation position should be changed so as
to make the air outlet at a straight angle from the
wind direction.

10
SELECTING INSTALLATION LOCATION OF OUTOOR UNIT (Cont.)
9.3 MINIMUM CLEARANCES WHEN SELECTING INSTALLATION LOCATION
FOR SINGLE OUTDOOR UNIT INSTALLATION
Obstacle at unit front ( air outlet )
Select installation location which allows the
minimum clearances shown in the figures for
free air circulation and easy accessibility for
service and maintenance :
The front of outdoor unit ( air outlet )
should be away from any obstacle by 500 mm or
more to ensure free air circulation.
The back of outdoor unit ( air inlet )
should be away from any obstacle by 160 mm or
more. This distance is built in the design of wall
support to ensure free air circulation.
The left side of outdoor unit
should by away from any obstacle by 400 mm or
more to ensure easy access to refrigerant and
electrical connections.
The right side of outdoor unit ( air inlet )
should be away from any obstacle by 250 mm or
more to ensure free air circulation.
The top side of outdoor unit
should be away from any obstacle by 400 mm or
more to ensure easy access to the electrical
components, motor and fan.
Obstacle at unit front ( air outlet ) &
Obstacle at unit back ( air inlet )
Obstacle at unit front ( air outlet ) &
Obstacle at unit top
Obstacle at unit back ( air inlet )
Obstacle at unit back ( air inlet ) &
Obstacle at unit top
Obstacle at unit back ( air inlet ) &
Obstacle at unit right and left sides
500 mm
or more
160 mm
or more
1000 mm
or more
400 mm
or more 1000 mm
or more
160 mm
or more
400mm
or more
160mm
or more
160 mm
or more
400 mm
or more 250 mm
or more

11
SELECTING INSTALLATION LOCATION OF OUTOOR UNIT (Cont.)
9.4 MINIMUM CLEARANCES WHEN SELECTING INSTALLATION LOCATION
FOR SERIAL INSTALLATION OF MORE THAN ONE OUTDOOR UNIT
Obstacle at unit front ( air outlet )
Select installation location which allows the
minimum clearances shown in the figures for
free air circulation and easy accessibility for
service and maintenance :
The front of outdoor unit ( air outlet )
should be away from any obstacle by 500 mm or
more to ensure free air circulation.
The back of outdoor unit ( air inlet )
should be away from any obstacle by 160 mm or
more. This distance is built in the design of wall
support to ensure free air circulation.
The left side of outdoor unit
should by away from any obstacle by 400 mm or
more to ensure easy access to refrigerant and
electrical connections.
The right side of outdoor unit ( air inlet )
should be away from any obstacle by 250 mm or
more to ensure free air circulation.
The top side of outdoor unit
should be away from any obstacle by 400 mm or
more to ensure easy access to the electrical
components, motor and fan.
Obstacle at unit front ( air outlet ) &
Obstacle at unit back ( air inlet )
Obstacle at unit back ( air inlet )
Obstacle at unit back ( air inlet ) &
Obstacle at right and left sides
1000 mm
or more
160 mm
or more
1000 mm
or more
400 mm
or more
400 mm
or more
160 mm
or more
400 mm
or more 400 mm
or more
400 mm
or more 400 mm or more 400 mm
or more 250 mm
or more
160 mm
or more

12
10. INSTALLATION LOCATION CHECK LIST
(A) INDOOR UNIT
- The installation location is close to the outdoor unit
- The wall hole (required to pass refrigerant piping, electrical cables and drain line)
is properly made as per installation required.
- The installation location permit the unit to deliver air to all of the space
to be air-conditioned
- The installation location is far away from any sunlight
- The installation location is far away from any heat sources
- The installation location avoid obstructions, which affect motion of supply and/or
return air to the unit
- The installation location permit free service space around the unit right, left, front
back and top
(B) OUTDOOR UNIT
- The electrical power supply is close to the outdoor unit
- The installation location is close to the indoor unit
- The installation location is able to support operating weight of outdoor unit
- The installation location is far away from any sunlight
- The installation location is free of dust or any material,
which can cause clogging of outdoor coil
- The installation location allow sufficient space
for air circulation around the unit
- The installation location allow sufficient space
for service and maintenance around the unit
- The installation location is selected so that the operation
noise and discharge air do not disturb the neighbors
(C) REFRIGERANT PIPING LINES BETWEEN INDOOR AND OUTDOOR UNITS
- The excessive length of refrigerant piping lines is avoided
- The excessive height between indoor and outdoor units is avoided
- The excessive number of turns and bends in the refrigerant piping lines is avoided

13
11. INSTALLATION ACCESSORIES
11.1 STANDARD INSTALLATION ACCESSORIES SUPPLIED FROM THE FACTORY
DESCREPTION SHAPE QTY USE
Battery 1.5 volt size AAA
alkaline type 2 To operate the wireless remote control
Wireless remote control 1 To operate the air conditioner
Owner manual 1 To illustrate control functions
of operation
Installation Manual 1 To illustrate installation instructions.
Wall hang bracket 1 For indoor unit installation on the wall.
Wall support for outdoor unit
( Only for domestic market ) 1 To mount outdoor unit on the wall
Floor support for outdoor unit
( Only for domestic market )
1 To mount outdoor unit on the ground
or floor
Insulated refrigerant piping lines
with flare nuts of length 3 meter
( Only for domestic market )
1 To connect refrigerant between
outdoor and indoor units and
refrigerant piping lines
11.2 STANDARD INSTALLATION ACCESSORIES SUPPLIED FROM THE FACTORY
( Only for export markets )
DESCREPTION SHAPE QTY USE
Flare nuts ( 3/8" & 1/4" )
supplied with outdoor units
38KHET12 & 38QHET12
1 + 1 To be mounted on the refrigerant
piping lines before being connected
to the outdoor unit.
Flare nuts ( 1/2" & 1/4" )
supplied with outdoor units
38KHET18 & 38QHET18
1 + 1 To be mounted on the refrigerant
piping lines before being connected
to the outdoor unit.
Flare nuts ( 5/8" & 3/8" )
supplied with outdoor units
38KHET24 & 38QHET24
1 + 1 To be mounted on the refrigerant
piping lines before being connected
to the outdoor unit.

14
INSTALLATION ACCESSORIES (Cont.)
11.4 OTHER INSTALLATION ACCESSORIES
Not supplied from the factory but must be used in the installation field to complete installation.
DESCREPTION USAGE
Electrical Connection
Cables To electrically connect the indoor unit, the outdoor unit and circuit breaker
ـWall Sleeve
ـWall Cap
ـSealer putty
To fill the gap between the wall hole and the lump of refrigerant piping
lines, electrical connection cables and condensate drain line.
ـFinishing tape PVC film To tie together the refrigerant piping lines, electrical connection cables
and condensate drain line.
ـVinyl tape To stick pipe insulation.
ـDrain hose ID 16-17mm To remove condensate water, from the indoor unit to the outside.
ـRefrigerant piping lines To connect refrigerant R22 between indoor and outdoor units
ـPipe insulation To insulate gas and liquid refrigerant piping lines
- Refrigerant R22 To adjust refrigerant charge for long refrigerant piping lines
(more than 3 meter)
- Clamps or saddles To secure the lump of refrigerant piping lines, electrical cables and
condensate drain line

15
12. INSTALLATION CHART
1) Installing outdoor unit 5) Connecting refrigerant
piping lines 9) Air purging with a vacuum pump
2) Drilling hole thru the
wall 6) Connecting condensate drain line 10) Refrigerant leak test
3) Installing indoor unit 7) Connecting electrical
wiring 11) Opening service valves
4) Pipes flaring 8) Finishing outer pipe
covering 12) Finishing installation
13) Test Running
14) Description of operation
Outdoor
unit

16
13. INDOOR UNIT INSTALLATION
13-1 PREPARATION STEPS BEFORE INSTALLATION
STEP (1) :Selecting Wall Hole Location
Back right or Back left piping :
In case of passing refrigerant piping lines, electrical cables and condensate drain line behind the unit,
drill a hole of 65mm behind the unit in one of the following locations as per the section :
Right Side or Left Side Piping :
In case of passing refrigerant piping lines, electrical cables and condensate drain line from unit right side
or from unit left side, remove the pipe cover form the side panel.
Size 12K
Size 18K
Size 24K
Right rear side refrigerant
pipe hole ø 65
45
90
120 mm or
more to wall
Left rear side refrigerant
pipe hole ø 65
120 mm or
more to wall 40
40
Indoor unit outline Installation plate
150mm or more to ceiling
265
H
oo
k
ed
P
a
r
t
Above 120
mm or
more to wall
4
3
2
4
3
2
1
08
1
080
330
1
30
Indoor unit outline
22
1
30
790
H
oo
k
ed
P
a
r
t
120 mm or
more to wall
2
56
2
56
2
09
9
2
0
2
93
1
30
Indoor unit outline
41
1
30
50
120 mm or
more to wall
150mm or more to ceiling
Above 120
mm or
more to wall
50
50
Above 150mm or more to ceiling

17
INDOOR UNIT INSTALLATION (Cont.)
PREPARATION STEPS BEFORE INSTALLATION (Cont.)
Step (2): Making Wall Hole Precautions:
Before making a hole, check carefully the following points :
•The wall is flat and perpendicular.
•If the wall is not flat and perpendicular, the indoor unit can
be unstable and condensate drain can spill.
•No studs or pipes are directly run behind the spot to be cut.
•No electrical wiring or conduits are located.
•Drill a hole of 65 mm to pass the refrigerant lines, drain hose
and electrical cables.
The wall hole can be made as required in either location (1)
or (2).
When making wall hole, make sure to drill outwards at a
downward angle, so that the height difference between the
entrance and exit of the hole is at least 5-10 mm.
Step (3): Cutting Sleeve For Wall Hole
•Measure the thickness of the wall from the inside edge to
the outside edge and cut PVC pipe at a slight angle 6mm
shorter than the thickness of the wall.
Step (4): Mounting Sleeve Into Wall Hole
•After making hole, a sleeve must be mounted into wall
hole and its width to be equal to wall thickness to pass
refrigerant lines, drain hose and electrical cables
through the wall hole.
Wall
5-10 mm
Wall
Indoor
side Outdoor
side
Cut Wall Sleeve
Indoor
side Outdoor
Side
Wall
Sleeve
Wall

18
INDOOR UNIT INSTALLATION (Cont.)
13-2 INSTALLATION STEPS OF INDOOR UNIT
Step (1) : Installing wall hang bracket
•Allow the clearance space around the unit, which
permits adequate air circulation, easy access to the
unit for easy service and maintenance.
•Fix wall hang bracket on the wall so that it is
leveled vertically and horizontally by using five
self-tapping screws to fix bracket top. 1 (One)
screws to fix bracket mid, 2 (Two) screws to fix
bracket bottom, Use a plumb line if necessary to
adjust leveling of the wall hang bracket.
Correct installation of the wall
hang bracket
Incorrect installation of the
wall hang bracket
NOTES
a. Fasten the wall hang bracket to the wall with at
least 5 (Five) screws ( supplied with unit ).
This correct fixation will prevent motion of bracket
after fixation, which can cause noisy unit
operation.
b. The wall hang bracket must be leveled in both
horizontal and vertical directions after fixation
without tilting to the right or lift to avoid water
dropping from the unit onto the floor. See Fig.
c. Install the wall hang bracket so that three is no
gap between it and the wall to avoid vibrations
and sound during unit operation.
d. Check that the wall hang bracket does not
move. This can cause noise during operation. See chapter (18):Connecting Electrical
Wiring.
Step (2): Electrical wiring of indoor unit
Step (3): Form refrigerant piping, drain hose
and electrical cables of indoor unit.
•As per the selected location of wall hole, form
and tie together with vinyl tape the refrigerant
piping, electrical cables and drain hose to form
a bundle. The drain hose should be at the bottom
of the bundle. Locating the drain hose at the top
of the bundle can cause drain pan to overflow
inside the indoor unit.
NOTES
a. Do not remove the flare nuts from the indoor unit
piping until the piping is ready for connection with
refrigerant piping lines.
b. Do not crush or kink the indoor unit piping.
Avoid tight bending with a bending radius less
than 100 mm.
c. Do not bend the same part of the pipe too often
to avoid pipe damage.
d. Bend pipes carefully to avoid flattening or
obstructing them if the pipes are bent in correctly,
the indoor unit may be unstable on the wall.
e. Carefully arrange pipes so that pipes do not stick
out of the wall hang bracket of the indoor unit.
Connective pipe
Pending box
Pipe room
Wrapping belt
Drain hose
Connective cable
2
31
4
5
6
Indoor Unit