Carrier 53QG18-H User manual

0 -
2009

Thank you for selecting Carrier
Air Conditioner
You can be justifiably of your purchase because the same pride in
craftsmanship and engineering know-how that goes into Carrier
equipment worldwide have been built into your unit.
One of the pleasant benefits awaiting you with room air
conditioning is that in addition to being cooled, the room air is
filtered and dehumidified.
This installation manual contains all installation, Service and
maintenance operation
• Installation and servicing of conditioning equipment can be
hazardous due to system pressures and electrical
components. Only trained and qualified service personnel
should install. Repair or service the air conditioning
equipment .
• When working on air conditioning equipment, observe
precautions in the literature, tags and labels attached to the
unit and other safety codes.

TABLE OF CONTENTS
PAGENO.
1. GENERAL NOTES TO INSTALLER 1
2. MODELS 2
3. OPERATING LIMITS 2
4. DIMENSIONS, WEIGHTS AND MINIMUM CLEARANCES 3
5. PRECAUTIONS BEFORE INSTALLATION 5
6. SPLIT SYSTEM DESCRIPTION 8
7. INSTALLTION ACCESSORIES 9
8. INSTALLATION CHART 11
9. SELECTING INSTALLATION LOCATION FOR INDOOR UNIT 12
10. SELECTING INSTALLATION LOCATION FOR OUTDOOR UNIT
10-1 INSTALLATION LOCATIONS 15
10-2 CONSIDERATIONS FOR SELECTING INSTALLATION LOCATIONS 15
11. INSTALLATION LOCATION – CHECK LIST 17
12. INDOOR UNIT INSTALLATION OF INDOOR UNITS
12.1 PREPARING UNIT BEFORE INSTALLATION 18
12.2 INSTALLATION STEPS 19
13. REMOTE CONTROL INSTALLATION 22
14. OUTDOOR UNIT INSTALLATION
14.1 PREPARING UNIT BEFORE INSTALLATION 23
14.2 INSTALLATION STEPS 23
15. CONNECTING REFRIGERANT PIPING LINES 24
16. CONNECTING CONDENSATE DRAIN LINE 35
17. CONNECTING ELECTRICAL WIRING 36
18. FINISHING INSTALLATION 40
19. TEST RUNNING 41
20. AIR CIRCULATION FOR INDOOR UNIT 42QG SERIES 43
21. AFTER INSTALLATION CHECK LIST 44
22. INSTALLATION OF OPTIONAL AIR FILTERS 46
23. SELF DIAGNOSTIC FUNCTION FOR MALFUNCTIONS DETECTION 47

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 11.
Tube bender
2. Phillips head screw driver 12.
Hexagonal wrench
3. Cutter drill 13.
Torque wrench
4. Metal saw 14.
Vacuum pump
5. Water level 15.
Gas leak detector
6. Meter 16.
Manometer for pressure measuring
7. Tube cutter 17.
Thermometer
8. Cutter 18.
Volts – ohm - millimeter
9. Reamer 19.
Electro circuit tester
10. Flare tool
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
for cooling.
These tips are:
1. KEEP DOORS, WINDOWS AND ANY OTHER OPENINGS CLOSED to prevent conditioned
air from escaping and to prevent warm air from entering the space to be air-conditioned.
2. CLEAN PERIODICALLY AIR FILTERS to assure maximum efficiency and adequate air
circulation of the air conditioner.
3. KEEP DRAPES, FURNITURE OR OTHER OBSTRUCTIONS AWAY FROM BLOCKING
RETURN AIR AND/OR SUPPLY AIR OF THE AIR CONDITIONER to assure maximum
efficiency and adequate air circulation of the air conditioner.

2
2. MODELS
HEATPUMP Coolonly
System
Model
Indoor Unit
Model
Outdoor Unit
Model
System
Model
Indoor Unit
Model
Outdoor Unit
Model
53QG18-H 42QG18-H 38QG18-H 53QG18-C 42QG18-C 38QG18-C
53QG24-H 42QG24-H 38QG24-H 53QG24-C 42QG24-C 38QG24-C
Notes:
53 = Split System
42 = Indoor Unit
38 = Outdoor Unit
H = Heat Pump
C = Cool Only
3. 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
*
20
-
-
Outdoor temperature
Maximum
Minimum
24
2
18
1
MAIN POWER SUPPLY
Standard Mild Ambient
Outdoor Unit High Ambient Outdoor Unit
Nominal
220V/1Ph/50HZ Nominal 220-240V/1Ph/50HZ
Min. Voltage 198 Min. Voltage 198
Max. Voltage 242 Max. Voltage 264
NOTES:
* 46°C for System with Mild ambient Standard outdoor unit.
52°C for System with High ambient outdoor unit.
** 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

3
4. DIMENSIONS, WEIGHTS AND MINIMUM CLEARANCES
4-1 OUTDOOR UNITS
38QG SERIES
DIMENSIONS (mm)
Weight
Model Kg
38QG18 52.8
38QG24 58.5
MINIMUM CLEARANCES FOR FREE AIR CIRCULATION, SERVICE AND MAINTENANCE
Notes:
- The front of the condensing unit (Propeller discharge airside) should be free from obstructions.
Any obstruction should be away from front of the condensing unit with distance specified in the
following drawings.
- The back of the condensing unit (coil intake airside) should be at least 160 mm away from any
obstruction. This distance 160 mm A is built-in design of wall support.
- A free space should be left on the right side of the outdoor unit.
- A free space should be left on the side of the refrigerant connections of condensing unit to ensure
easy access to the terminal block.
- A free space should be left from the top cover of condensing unit to ensure easy access to electrical
components, motor and propeller.
- The refrigerant line connections must be conveniently located for service and maintenance.
Kg
576
860
665
665
350
602
371
384
350

4
DIMENSIONS, WEIGHTS AND MINIMUM CLEARANCES (Cont.)
MINIMUM CLERANCES OF OUTDOOR UNIT FOR FREE AIR CIRCULATION,
SERVICE AND MAINTENANCE (Cont.)
Obstacle at air inlet to outdoor unit ( unit back )
No obstacle at unit top
No obstacles at unit and left sides
Singleunitinstallation Serialinstallationoftwoormoreunits
Obstacle at air inlet to outdoor unit ( unit back )
No obstacle at unit top
obstacles at unit right and left sides
Singleunitinstallation Serialinstallationoftwoormoreunits
The hieght of the obstacle should be lower than the height of the outdoor unit.
Obstacle at air inlet to outdoor unit ( unit back )
obstacle also at unit top
No obstacles at unit right and left sides
DIMENSIONS (mm)
160 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 250 mm
or more
400mm
or more
160 mm
or more
160 mm
or more
400 mm
or more 250 mm
or more
160 mm
or more

5
DIMENSIONS, WEIGHTS AND MINIMUM CLEARANCES (Cont.)
MINIMUM CLERANCES OF OUTDOOR UNIT FOR FREE AIR CIRCULATION,
SERVICE AND MAINTENANCE (Cont.)
Obstacle at air outlet from outdoor unit ( unit front )
No obstacle also at unit top
No obstacles at unit right and left sides
Singleunitinstallation Serialinstallationoftwoormoreunits
Obstacle at air outlet from outdoor unit ( unit front )
Obstacle also at unit top
No obstacles at unit right and left sides
Obstacles at both air inlet and air outlet of outdoor unit ( both unit front & back )
No obstacle also at unit top
No obstacle at unit right and left sides
Singleunitinstallation Serialinstallationoftwoormoreunits
The height of obstacle at both front and back side, should be lower than the height of outdoor unit.
Serial installation at front and rear sides
Standard installation
Open the upper side and both right and left sides.
The height of obstacle at both front and back, should be lower than the height of the outdoor unit.
160 mm
or more
1000 mm
or more
160 mm
or more
1000 mm
or more
400 mm
or more
400 mm
or more
1000 mm
or more
500 mm
or more
1000 mm
or more
1000 mm
or more
160 mm
or more
1000 mm
or more
1500
or more
1000 mm
or more
160 mm
or more

6
DIMENSIONS, WEIGHTS AND MINIMUM CLEARANCES (Cont.)
4-2 INDOOR UNITS
42QG SERIES
DIMENSIONS (mm)
Weight
Model Kg
42QG18 14
42QG24 14
MINIMUM CLEARANCES FOR FREE AIR CIRCULATION, SERVICE AND MAINTENANCE
Kg 1080 185
Mounting Plate Main Body
Connection Tube Drain Hose
295

7
5. PRECAUTIONS BEFORE INSTALLATION
SAFETY CONSIDERATIONS
• Installation of air conditioning equipment can be hazardous due to system pressures and
electrical components.
• The installation of the air conditioner must be done by Carrier or one of Carrier authorized
dealers.
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.
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 and not done by
Carrier or one of Carrier authorized dealers.
6- Failure due to Installation done through the owner and not done by Carrier or one of
Carrier authorized dealers.
7- Failure due to Service and Maintenance done through the owner and not 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 and not done by Carrier or one of Carrier authorized dealers.
9- Product normal sound ( refrigerant – moving 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 ).
!