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.