Carrier Cassette Sky 53QC 48 User manual

Rev. (0) - 2013
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
03501149
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
Cassette
Sky
53QC 36 - 48
HEAT PUMP
220-240V ~ 50Hz 1Ph
380-420V ~ 50Hz 3Ph
R
2
2

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 WEIGHTS OF INDOOR UNIT 5
7. DIMENSIONS AND WEIGHTS 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 16
14. REMOTE CONTROL INSTALLATION 19
15. OUTDOOR UNIT INSTALLATION 21
16. CONNECTING REFRIGERANT PIPING LINES 22
17. CONNECTING CONDENSATE DRAIN LINE 35
18. CONNECTING ELECTRICAL WIRING 36
19. FINISHING INSTALLATION 41
20. TEST RUNNING 42
21. AFTER INSTALLATION CHECK LIST 43
22. SELF DIAGNOSTIC FUNCTION FOR MALFUNCTIONS DETECTION 45

1
1. GENERAL NOTES TO INSTALLER
CARRIER 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 during installation:
1. Standard screw driver 10.
Flare tool set
2. Phillips head screw driver 11.
Pipe bender
3. Hole core drill 12.
Hexagonal wrench
4. Tape measure 13.
Torque wrench
5. Water level 14.
Vacuum pump
6. Pipe clamp 15.
Gas leak detector
7. Pipe cutter 16.
Manifold gauge
8. Spanner 17.
Thermometer
9. Reamer 18.
Electrical circuit tester
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 Carrier 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 Carrier 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 done through the owner.
Installation must be done by Carrier or one of Carrier authorized dealers.
7- Failure due to Service and Maintenance done through the owner.
Service and maintenance must be done by Carrier or one of Carrier authorized dealers.
8- Failure due to repair by using non-genuine Carrier Parts, or substituting other than Carrier
parts done through the owner. All repair works must be done by Carrier or one of Carrier
authorized dealers.
9- Product normal sound ( refrigerant – moving parts – plastic parts )
10- 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
1: Air outlet 2: Display panel
3: Air flow louver ( at air outlet ) 4: Air-in grill
5: Air filter ( inside air-in grill ) 6: Air inlet
7: Refrigerant piping lines and electrical cables 8: Condensate drain line.
9: Drain pipe 10: Flare valves
11: Remote control signal receiver 12: Bracket of remote control
7
8
10 Outdoor Unit
2
11
1
3
8
54
6
9
12
Indoor Unit

4
4. MODELS
HEAT PUMP
System
Model Indoor Unit Model Outdoor Unit Model
53QC36-708 42QC36-708 38QC36-708
53QC48-508 42QC48-708 38QC48-508
Notes:
53 = Split System
42 = Indoor Unit
38 = Outdoor Unit
Q = Heat Pump
C = Cassette
7 = Power supply 220-240/1/50
5 = Power supply 380-420/3/50
0 = Wireless remote control
8 = Miraco - Carrier
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 27 -
Outdoor temperature
Maximum
Minimum
46
20
-
- Outdoor temperature
Maximum
Minimum
24
2
18
1
MAIN POWER SUPPLY
SystemModel
Nominal
Power Supply
V/PH/HZ
MinimumVoltage MaximumVoltage
53QC36-708 200-240/1/50 198 254
53QC48-508 380-420/3/50 342 462
NOTES:
* When the unit is operated above or below these limits for a long time, system diagnostics
may detect a malfunction and the unit 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 completions of defrost cycle, the system will normally operate

5
6. DIMENSIONS AND WEIGHTS OF INDOOR UNIT
DIMENSIONS (mm)
Weight
Model Unit Net Weight
Kg
Panel Net
Weight
Kg
42QC36-708 30 6
42QC48-708 30 6
7. DIMENSIONS AND WEIGHTS OF OUTDOOR UNIT
DIMENSIONS (mm)
Weight
Model Kg
38QC36-708 79.5
38QC48-508 90
38QC36-708 38QC48-508
Kg
Kg
950 (Panel)
680 (Hook-location)
840 (Body)
950 (Panel)
Drain side
Tubing side
350
384
720
860
665
371
350
860
1150
371
350
665
350
384
840 (Body)
780 (Hook-location)

6
8. SELECTING INSTALLATION LOCATION OF INDOOR UNIT
8.1 CONSIDERATIONS OF SELECTING INSTALLATION LOCATION
Select installation location which allows the following requirements :
Easy accessibility for service and maintenance.
The ceiling is horizontal and its structure can endure the weight of the indoor unit.
The 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.
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
>1000mm
>1000mm
>1000mm
>1000mm
Outlet
Inlet
Outlet
>2500mm Panel
Ground
880mm
(
ceilin
g
hole
)
Ceiling
>330
mm
Connecting point
of drain pipe
Connecting point of
refrigerant pipe
(Liquid side ø9.5)
Connecting point of
refrigerant pipe
(Gas side ø19.1)
330 mm

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.

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.