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
PAGE NO.
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. 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.
2.
3.
4.
5.
6.
7.
8.
9.
10.
Standard screw driver
Phillips head screw driver
Cutter drill
Metal saw
Water level
Meter
Tube cutter
Cutter
Reamer
Flare tool
11.
12.
13.
14.
15.
16.
17.
18.
19.
Tube bender
Hexagonal wrench
Torque wrench
Vacuum pump
Gas leak detector
Manometer for pressure measuring
Thermometer
Volts – ohm - millimeter
Electro 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.
• Functions of the remote control.
• Removal and cleaning of the air filters.
• 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.
1
2. MODELS
HEAT PUMP
System
Model
53QG18-H
53QG24-H
Indoor Unit
Model
42QG18-H
42QG24-H
Cool only
Outdoor Unit
Model
38QG18-H
38QG24-H
System
Model
53QG18-C
53QG24-C
Indoor Unit
Model
42QG18-C
42QG24-C
Outdoor Unit
Model
38QG18-C
38QG24-C
Notes:
53
42
38
H
C
= Split System
= Indoor Unit
= Outdoor Unit
= Heat Pump
= Cool Only
3. OPERATING LIMITS **
COOLING
Dry Bulb
Difference
Temp. C°
Indoor temperature
Maximum
32
Minimum
21
Outdoor temperature
Maximum
*
Minimum
20
HEATING
Dry Bulb
Difference
Temp. C°
Indoor temperature
Maximum
27
Wet Bulb
Temp. C°
23
15
Outdoor temperature
Maximum
Minimum
-
24
2
Wet Bulb
Temp. C°
18
1
MAIN POWER SUPPLY
Standard Mild Ambient
Outdoor Unit
Nominal
220V/1Ph/50HZ
Min. Voltage 198
Max. Voltage 242
High Ambient
Outdoor Unit
Nominal
220-240V/1Ph/50HZ
Min. Voltage 198
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
2
4. DIMENSIONS, WEIGHTS AND MINIMUM CLEARANCES
Weight
Model
38QG18
38QG24
Kg
860
350
665
384
602
576
4-1 OUTDOOR UNITS
38QG SERIES
DIMENSIONS (mm)
Kg
52.8
58.5
350
371
665
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.
3
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
Single unit installation
Serial installation of two or more units
160 mm
or more
160 mm
or more
400 mm
or more
400 mm
or more
Obstacle at air inlet to outdoor unit ( unit back )
No obstacle at unit top
obstacles at unit right and left sides
Single unit installation
160 mm
or more
400 mm
or more
Serial installation of two or more units
160 mm
or more
250 mm
or more
400 mm
or more
400 mm
or more
400 mm
or more
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
160 mm
or more
400mm
or more
DIMENSIONS (mm)
4
250 mm
or more
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
Single unit installation
Serial installation of two or more units
500 mm
or more
1000 mm
or more
Obstacle at air outlet from outdoor unit ( unit front )
Obstacle also at unit top
No obstacles at unit right and left sides
1000 mm
or more
1000 mm
or more
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
Single unit installation
Serial installation of two or more units
160 mm
or more
160 mm
or more
1000 mm
or more
1000 mm
or more
400 mm
400 mm
or more
or more
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.
160 mm
or more
1000 mm
or more
1500
or more
1000 mm
or more
160 mm
or more
The height of obstacle at both front and back, should be lower than the height of the outdoor unit.
5
DIMENSIONS, WEIGHTS AND MINIMUM CLEARANCES (Cont.)
4-2 INDOOR UNITS
42QG SERIES
DIMENSIONS (mm)
42QG18
42QG24
1080
Kg
185
Kg
14
14
295
Weight
Model
Mounting Plate
Connection Tube
Main Body
Drain Hose
MINIMUM CLEARANCES FOR FREE AIR CIRCULATION, SERVICE AND MAINTENANCE
6
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 ).
7
6. SPLIT SYSTEM DESCRIPTION
8
Outdoor Unit
5 4
Indoor Unit
7
2
3
9
6
1: Remote control signal receiver.
2: Operating status leds.
6: Supply air outlet
3: Supply air flap
7: Characteristics nameplate.
4: Air return.
8: Inter connecting tubing.
5: Air filter.
9: Condensate drain line.
8
1
7. INSTALLATION ACCESSORIES
7.1 STANDARD INSTALLATION ACCESSORIES Supplied from the factory
DESCREPTION
CONFIGURATION
QTY
USAGE
Battery 1.5 volt size AAA
alkaline type
2
To operate the wireless remote control
Wireless remote control and
Plastic holder for remote
1
To operate the air conditioner
To mount remote control on the wall
Owner manual
Installation Manual
1
1
Insulation Tube.
1
Wall hang bracket
1
For indoor unit installation on the wall.
Self tapping screw 5 x L50
5
For wall hang bracket installation
Tapping Screws
2
Drain Elbow
1
To illustrate control functions of operation
To illustrate installation instructions.
To insulate half unions and Flare nuts after
connecting refrigerant piping lines to the
indoor and outdoor units.
For adjustment the gap between indoor
unit and wall.
Outdoor unit
Condensate drain
7.2 OPTIONAL ACCESSORIES Supplied from the factory as per the requirement
DESCREPTION
CONFIGURATION
Wall support for outdoor unit
Floor support for outdoor unit
Insulated refrigerant piping lines
with flare couplings of lengths
4-6-8-10-12 meter
Optional air filters
(Carbon air filter + Photo-catalytic
air filter)
QTY
USAGE
1
To mount outdoor unit on the wall
1
To mount outdoor unit on the
ground or floor
To connect Freon between
outdoor and indoor units and
refrigerant piping lines
To eliminate odor and cigarette
Set of 2 smoke in the room air
respectively.
1
PTC starting device
1
9
To start the compressor in
outdoor unit at low voltage down
187V
INSTALLATION ACCESSORIES (Cont.)
7.4 OTHER INSTALLATION ACCESSORIES
Not supplied from the factory but must be used in the field to complete installation.
DESCREPTION
Electrical Connection Cords
USAGE
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 Freon R22 between outdoor and indoor units
‫ ـ‬Pipe insulation
To insulate suction and liquid refrigerant piping lines
- Refrigerant R22
To adjust refrigerant charge for long refrigerant piping lines
(more than 3 meter)
- Refrigerant Oil
To be added for long refrigerant piping lines (more than 10 meters)
- Clamps or saddles
To secure the lump of refrigerant piping lines, electrical cables and
condensate drain line
10
8. 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
Outdoor
unit
4) Processing pipes
8) Finishing outer pipe
covering
12) Finishing installation
13) Test Running
14) Description of operation
11
9. SELECTING INSTALLATION LOCATION FOR INDOOR UNIT
9.1 CONSIDERATIONS FOR SELECTING INSTALLATION LOCATION
Avoid excessive height difference between
indoor and outdoor units
Avoid excessive length of refrigerant piping
lines between indoor and outdoor units
175CM OR MORE
Location of Indoor Unit
Relative to Space to be Air-Conditioned.
The installation location should permit the unit
to deliver air to all of the space to be uniformly
air-conditioned.
Avoid direct sunlight that may affect
performance of the unit
Avoid heat sources such as steam or flame
that may affect performance of the unit.
Avoid obstructions such as Curtains,
Furniture and Cloths…etc. These obstructions
can affect motion of supply air and/or return
air, which in turn affects unit efficiency and
airflow.
12
SELECTING INSTALLATION LOCATION FOR INDOOR UNIT (Cont.)
CONSIDERATIONS FOR SELECTING INSTALLATION LOCATION (Cont.)
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.
Avoid installation location on humid walls or positions with water hazard, e.g. laundry premises.
Check that the wall surface is flat enough 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.
Choose an installation location that allows easy installation.
Choose an installation location that allows for free air circulation service and maintenance
minimum clearances.
Choose an installation location where condensate water from indoor unit can easily be piped
to an appropriate drain
Location of Wall Hole
The wall hole (required to pass refrigerant piping lines, electrical cables and drain hose)
should be according to the selected installation location.
13
SELECTING INSTALLATION LOCATION FOR INDOOR UNIT (Cont.)
9.2 POSSIBLE OUTLET LOCATIONS OF REFRIGERANT PIPING LINES FROM INDOOR UNIT
3
1
4
Possible outlet locations of refrigerant
piping lines from indoor unit.
2
Fig. (1)
The refrigerant piping lines can be
connected in one of the following Four
outlet locations as indicated by (1), (2), (3)
and (4)
1
When the piping is connected to the
direction of (1) or (2) or (4),
Detach the knock – out either at the side
or at the bottom of the unit. See fig. (2)
4
2
Fig. (2)
SR
OUTLET
LOCATION
NOTE:
The recommended outlet location to pass
refrigerant piping lines, electrical cables
and condensate drain line either from
behind unit right or from behind unit left to
keep appearance of installation and to
facilitate installation.
NOTES
1
UNIT RIGHT
Remove right side knock-out
2
UNIT
BOTTOM
Remove bottom knock-out
3
UNIT BACK
Do not remove side
or bottom knock-out
4
UNIT LEFT
Remove left side knock-out
The unit hides the refrigerant lines;
electrical cables and condensate drain line.
* Note:
In case of impossibility of mounting the indoor unit directly on the wall, use floor support for indoor unit
14
10. SELECTING INSTALLATION LOCATION FOR OUTDOOR UNIT
10.1 INSTALLATION LOCATIONS
The condensing unit can be installed in any outside location, on a wall, roof or on a ground level.
10.2 CONSIDERATIONS FOR SELECTING INSTALLATION LOCATIONS
Avoid excessive distance between outdoor
and indoor units
Avoid excessive height between outdoor
and indoor units
Avoid any obstruction of the unit air outlet
and intake or any obstacle that is too close
Avoid multiple unit installation with units
facing each other.
Avoid unnecessary turns and bends in the
refrigerant piping lines.
15
SELECTING INSTALLATION LOCATION FOR OUTDOOR UNIT (Cont.)
CONSIDERATIONS FOR SELECTING INSTALLATION LOCATION (Cont.)
Avoid dripping into
passageways.
Avoid soiling of pipe
ends
Avoid allowing
piping to get wet
before connection
Avoid disconnecting
the refrigerant
connections after
installation, this will
cause refrigerant
leaks
Avoid connecting the condensate drain line
to the outdoor unit.
a. Weight of Outdoor Unit
The installation location of outdoor unit should be able to support operating weight of outdoor
unit, and not cause vibration.
b. Effect of Direct Sunlight
The installation location of outdoor unit is preferable to be far away from the direct sunlight.
c. Effect of heat sources, steam or flammable gas
The installation location of outdoor unit should be far away from heat sources, steam or
flammable gas.
d. Cleanness of location
The installation location of outdoor unit should be 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.
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 When the air outlet is affected by the strong wind,
should face the wall and keep a space of 500mm the installation position should be changed so as
from the wall.
to make the air outlet at a straight angle from the
wind direction.
16
11. 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 on the unit right back
- 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 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
(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
17
12. INSTALLATION OF INDOOR UNITS
12.1 PREPARATION STEPS OF INDOOR UNIT BEFORE INSTALLATION
a. Put packed unit as shown.
Remove plastic strap (item 1) from
cardboard.
d. Lift insert grille to the top of the unit
with both hands and it will be
automatically separated from unit.
b. Slide unit from carton (item 1)
e. Disassemble terminal block cover
by removing two screws from grille
frame.
1
Lift unit with Styrofoam
Parts from carton box
Remove Styrofoam parts
•
By pulling right and left
Styrofoam you will find small carton box
containing electrical connection cords and
remote control with its accessories.
3
f. Pull the triangle marks located at
bottom of the grille frame.
2
•
Turn the unit up, you will find the
mounting bracket.
c. Remove the screw-fixing wall
mounting bracket with the unit.
g. Lift grille frame to top of the unit.
Remove the wall-mounting bracket from the
unit by pushing up the indicated marks ( ▲)
at the bottom of the body.
h. Fix the optional plastic holder of the
remote control on the wall by using
optional anchor screw and screw
REMOVE SCREW
Removal of wall hang bracket
18
INSTALLATION OF INDOOR UNITS (Cont.)
12-2 INSTALLATION STEPS OF INDOOR UNIT
STEP (1): Selecting Wall Hole Location Back Piping
In case of passing refrigerant piping lines, electrical cables
and condensate drain line behind the unit, drill a hole of 8 cm
behind the unit in one of the following locations as per
sequence:
Location (A): behind unit right.
Location (B): behind unit Left.
Side or bottom piping
In case of passing refrigerant piping lines, electrical cables
and condensate drain line from unit right side or from unit
bottom, detach the knockout in either the side or bottom of the
unit.
Step (2): Making Wall Hole Precautions:
Wall Hole Locations
Wall
Before making a hole, check carefully that :
- 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 80 mm to pass the refrigerant lines, drain
hose and electrical cables.
The wall hole can be made as required in either location
(A) or (B).
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
it.
Step (5) : Installing the wall hang bracket
5-10 mm
Indoor
side
Wall
Outdoor
side
Cut Wall Sleeve
Wall
Sleeve
Indoor
side
Outdoor
Side
• 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 the five self-tapping
screws supplied with the unit in the plastic page 2 (Two)
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.
19
Space Around Unit Indoor Unit
INSTALLATION OF INDOOR UNITS (Cont.)
INSTALLATION STEPS OF INDOOR UNIT (Cont.)
NOTES:
a. Fasten the wall hang bracket to the wall with
all the 5 (Five) screws supplied with unit.
This correct fixation will prevent motion of
bracket after fixation, which can cause noisy
unit operation.
X
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.
An Uneven Installation
d. Check that the wall hang bracket does not
move.
This can cause noise during operation.
See chapter (18) : Connecting Electrical Wiring.
Step (6): Electrical wiring of indoor unit
Step (7): Forming 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.
The drain hose should be at the bottom.
Indoor unit piping
Left Piping
Bind with vinyl tape
• For left piping fit the refrigerant piping,
electrical cords and drain hose into the
recess at back of indoor unit.
Indoor unit
piping
Connection
cables
Notes:
Drain hose
a. Do not crush or kink the indoor unit piping.
Avoid tight bending with a bending radius
less than 100 mm.
b. Do not bend the same part of the pipe too
often.
c. Do not remove the flare nuts from the indoor
unit piping until the piping is ready for
connection with refrigerant piping lines.
20
INSTALLATION OF INDOOR UNITS (Cont.)
INSTALLATION STEPS OF INDOOR UNIT (Cont.)
Step (8): Passing refrigerant piping,
electrical cords and drain hose
of indoor unit through wall
sleeve.
• Passing refrigerant piping lines
through the wall sleeve is done before
hooking the indoor unit body onto the
top of the wall hang bracket.
• For left piping, hang the unit onto the
top of the wall hang bracket and
incline the unit using a tool such as a
screw driver set between the middle
area of body and bottom right of the
wall hang bracket.
Connecting the piping can be done more
easily if the unit is inclined.
Warning:
Do not supply power to the indoor unit until all
refrigerant piping and electrical wiring to the
outdoor unit are completed.
Step (9): Installing the Indoor Unit Body
to the Wall Mounting Bracket
• Snap the marking places of the body (A, B)
onto the hole of the bracket.
Wall
NOTES:
Wall mounting bracket
• In case of removing the unit from the wall
hang bracket after installing it onto the wall,
remove it by pushing up the indicated marks
( ▼) at the bottom of the body.
Hook
Hole
• After installation of unit, if there is a
significant gap between the unit and wall,
securing 2 screws to the body and wallmounting bracket can adjust it.
D
B
C
A
Refer to the screw hole location (C, D) in the
Figure.
Screw holes can be only seen after removing
the grille frame.
A B C D
340 270 270 195
Dimensions in mm
21
13. REMOTE CONTROL INSTALLATION
13.1 HOW TO INSERT BATTERIES:
(a) Remove the cover of battery compartment at the back of the remote
control by pressing the tab toward inside, in the direction of the arrow.
(b) Mount the two-battery size AAA 1.5 Volt supplied with the remote control.
Then close the cover of the battery component.
Note:
During mounting of batteries check battery symbols (+, -) indicated in
batteries compartment.
NOTES:
1. The remote control uses two alkaline batteries (1.5V, LRO03x2).
2. Do not use used batteries or batteries of different types, as this may cause the air conditioner to
malfunction.
3. Batteries should only be changed after turning OFF the air conditioner.
4. The average battery life during normal use is approximately one year.
6. When the symbol
appears in the display of the remote control, this indicates that the
batteries are exhausted and required to be replaced
13-2 INSTRUCTION:
WHEN DIRECTING THE TRANSMITTER OF WIRELESS REMOTE CONTROL TO THE RECEIVER
OF INDOOR UNIT FROM A CERTAIN LOCATION, CHECK THE FOLLOWING POINTS:
1- Avoid direct sunlight on the receiver of indoor unit, which may interfere with good signal reception
2- No obstructions such as curtains or plants should be between the remote control and the receiver
of indoor unit.
3- The maximum operating range for the remote control is approximately 5 meters.
4- The remote control must be directed toward the receiver of indoor unit when pressing the buttons of
the desired functions. An acoustical acknowledgement sound (beep) will indicate that signal has
been received.
22
14. OUTDOOR UNIT INSTALLATION
14.1 PREPARATION STEPS BEFORE INSTALLATION
a.
Put packed unit as shown.
b. Lift unit from cardboard.
c.
Remove service door (item 2) by
removing one screw (item 1).
Detach the cable clamp by
removing one screw.
2
1
14.2 INSTALLATION STEPS
WALL INSTALLATION STEPS
FLOOR INSTALLATION STEPS
Wall Support Dimensions (mm)
Floor Support Dimensions. (mm)
32
557
443
162
80
42
132
415
886
132
412
215
888
215
443
fix wall support into the wall
Put unit on the wall support.
Put outdoor unit on the floor support
If the outdoor unit installed other than on the ground,
connect it to a 15-16 mm inside diameter hose. This is
needed because drain water flows out of the outdoor unit
during heating operation.
(Only for heat pump unit)
23
Floor
Support
15. CONNECTING REFRIGERANT PIPING LINES
15-1 INSTRUCTIONS FOR CONNECTIING REFRIGERANT PIPING LINES
Avoid excessive height difference
between indoor and outdoor units.
Avoid excessive length of refrigerant
piping lines between indoor and outdoor
units
Recommended
- All bends must be considered when
connecting indoor unit with outdoor unit
by required length
of refrigerant piping lines.
- Do not remove the protective caps from
the couplings until the refrigerant piping
lines are ready for connection with both
indoor and outdoor units.
This is to keep piping clean.
- The installer must carefully unroll the
tubing and run it between the indoor and
outdoor units.
● Do not bend the pipe more than three
times at one place.
● When extending the rolled pipe,
straighten the pipe by unwinding it.
When forming the pipe. Be careful not to
crush it.
Not
Recommended
Flattening or kinking of refrigerant piping
must be avoided
Insulation
When making a bend, the installer cuts
insulation and slides it away from the
bend area. Using a tube bender makes
the bend and then the insulation is
replaced gluing it together.
Copper
Piping
24
CONNECTING REFRIGERANT PIPING LINES (Cont.)
INSTRUCTIONS FOR CONNECTIING REFRIGERANT PIPING LINES (Cont.)
Radius of Bending
The minimum radius of bending must not
be less than 100 mm to avoid damage of
tubing.
Once the tubing is bent, the installer must
not unbend at the same point as this
causes work hardening of copper tubing
and makes it more difficult to reshape
Avoid disconnecting refrigerant
connections after they have been tightened
to avoid refrigerant leaks.
Excessive tubing
must be coiled
horizontally
When there is excessive tubing, it must be
coiled horizontally so that the flow of
refrigerant is from the top to bottom of the
coil and towards the outdoor unit.
The excessive tubing must not be coiled
vertically since the vertical coil affects the
oil return to the compressor.
For bends having a radius smaller than 300
mm, the use of a tuber bender with a
minimum wheel diameter of 120 mm is a
must.
The tube bender wheel grooves should
have the same diameters as the refrigerant
pipes.
Avoid excessive number of bends in
refrigerant piping lines during connections
with both the indoor and outdoor units.
This is to avoid reduction of cooling
efficiency.
Bends with tube diameter bigger than ½” or
a bending radius than 300 mm should be
made with a dime. Having this radius.
25
CONNECTING REFRIGERANT PIPING LINES (Cont.)
15.2 USE OF REFRIGERANT PIPING LINES
The following data refers to the use of refrigerant piping lines of diameters equivalent to that use in
units where:
L = Maximum length of refrigerant piping lines between outdoor and indoor unit.
H = Maximum vertical distance between outdoor and indoor units.
(A) OUTDOOR UNIT BELOW INDOOR UNIT:
a. Suction line should rise above height of Indoor unit to shape a liquid trap in an inverted
loop before descending to outdoor unit to prevent liquid refrigerant from draining into
compressor during shutdown.
b. Slop tubing towards the outdoor unit with a fall of at least (6mm) to (305mm).
Liquid Trap
Indoor
Unit
System
Model
53QG18
53QG24
Liquid Line
Meters
L
H
20
10
20
10
H
Outdoor
Unit
Suction Line
Slop
(B) OUTDOOR UNIT ABOVE INDOOR UNIT:
• If height is less than or equal 4 meters, one oil trap must be at the suction line at the base of
suction riser near the Indoor unit to facilitate oil return to the compressor to ensure efficiency
of compressor mechanical parts.
• If height is more than 4 meters, more than one oil trap must exist at the suction line, the first
one will be at the suction line near to the indoor unit and the following one will be 4 meters
from the first one and so on.
Suction
System
Model
53QG18
53QG24
Meters
L
H
20
10
20
10
Outdoor
Unit
Slop
Liquid
H
Indoor Unit
Max.
4m
Oil Trap
(C) OUTDOOR UNIT ON THE SAME LEVEL AS INDOOR UNIT:
An oil trap shall be at the suction line at the base of suction riser near the Indoor unit to
facilitate oil return to the compressor to ensure efficiency of compressor mechanical parts.
System
Model
53QG18
53QG24
Meters
L
20
20
Indoor Unit
L
Liquid
Suction
Oil Trap
26
Outdoor
Unit
CONNECTING REFRIGERANT PIPING LINES (Cont.)
15-3 LENGTHS AND DIAMETERS OF REFRIGERANT PIPING LINES FOR ALL MODELS
S
L
5/8”
3/8”
S = Suction line diameter.
L = Liquid line diameter.
15.4 REFRIGERANT CHARGE.
• For refrigerant piping lines of length more than 3 meters, add 25 grams of refrigerant per
extra meter from 3 meters refrigerant piping lines:
Example 1 = For 8 meter lines, refrigerant added = (8-3) x 25 = 125 grams.
Example 2 = For 12 meter lines, refrigerant added = (12-3) x 25 = 225 grams.
Note:
(1) The outdoor unit is factory supplied with refrigerant charge for use with refrigerant piping lines
of length 3 meters and with added 100 grams for air and moisture purge from the system.
(2) Charge the refrigerant accurately.
(3) Refrigerant overcharge may cause a serious trouble of compressor.
27
CONNECTING REFRIGERANT PIPING (Cont.)
15.5
DESCRIPTION OF REFRIGERANT CONNECTIONS OF OUTDOOR UNIT.
10
6
7&9
1
2
4
8
3
5
15.6
(1) Suction flare valve.
(2) Suction service valve.
(3) Suction port to open & close.
(4) Cap for suction service valve.
(5) Cap for suction port.
(6) Liquid flare valve.
(7) Liquid service valve.
(8) Liquid port to open & close.
(9) Cap for liquid service valve.
(10) Cap for liquid port.
DESCRIPTION OF REFRIGERANT CONNECTIONS
OF HI WALL INDOOR UNITS
Half Union
Suction
REFRIGERANT
CONNECTIONS
15.7
DESCRIPTION OF REFRIGERANT CONNECTIONS
OF REFERIGERANT PIPING LINES
15.8
CUTTING AND FLARING TOOLS
Half Union
Liquid
Make sure that have the required tools available before preparing refrigerant piping lines
Pipe Cutter
Flare Tool
28
CONNECTING REFRIGERANT PIPING LINES (Cont.)
15-9 STEPS FOR PREPARING REFRIGERANT PIPING LINES BEFORE CONNECTIONS
( IN CASE OF NOT USING THE OPTIONAL FACTORY REFRIGERANT PIPING LINES WITH THE FLARE NUTS )
Pipe Cutter
STEP (1): Cutting refrigerant piping lines
• Remove protective caps from copper pipe ends.
• Position tube end downwards, cut the pipe to the
required length with a pipe cutter.
NOTE:
• Remove burrs at the end of the connection pipe
1
2
NOTE:
When reaming, hold the pipe end downward and
be sure that no copper scraps fall into the pipe.
STEP (2): Removing the flare nuts from the
indoor unit.
Remove the suction and liquid flare nuts from the
indoor unit connections.
NOTES:
• Do not remove the flare nuts from the indoor unit
until refrigerant piping lines are ready for
connections.
• It is that easier to remove flare nuts from the
indoor unit before being installed on the wall hang
bracket.
STEP (3): Removing the flare nuts from the
outdoor unit Remove the suction
and liquid flare nuts from the
outdoor unit connections.
NOTES:
• Do not remove the flare nuts from the outdoor unit
until refrigerant piping lines are ready for
connection.
• It is easier to remove flare nuts from the outdoor
unit before being installed on the wall support.
29
After
1: Connection pipes
2: Reamer
Debarring
with a pipe reamer or a file.
This process is important and should be done
carefully to make a good flare and to prevent any
gas leaking out.
Wrap Cutting
Before
Corrugated Cutting
Correct Cutting
Removing the burrs
Inclined Cutting
• It is recommended to cut approx. 30→50 cm
longer than the estimated pipe length.
• Take care to ensure that the cut edge remains at a
90° angle with the side of pipe, and refer to the
illustrations for examples of edges cut correctly
and incorrectly.
CONNECTING REFRIGERANT PIPING LINES (Cont.)
STEPS FOR PREPARING REFRIGERANT PIPING LINES BEFORE CONNECTIONS (Cont.)
STEP (4): Mounting flare nuts on the
refrigerant piping lines
Liquid
Piping Line
• Mount the suction flare nut on the other side of
suction piping line.
• Mount the liquid flare nut on the other side of
liquid piping line.
Suction
Piping Line
STEP (5): Flaring the Piping
• Use flare tool to flare ends of both suction and
liquid piping lines slide a flare nut on to the tube
and modify the flare.
NOTES:
1) Good flare should have the following
characteristics :
• Inside surface is glossy and smooth.
• Edge is smooth and must not have any burrs
or imperfections.
• Tapered sides are of uniform length.
Flare Tool
Flare tool
Recommend
2) Be sure to apply a sealing cap or waterproof tape
to prevent dust or water from getting into the
refrigeration piping lines before they are used.
Refrigerant
Piping
Flare Nut
Avoid incorrect flaring, which results in
damaged or cracked or inclined with
uneven thickness surface.
Liquid Line
STEP (6): Mounting flare nuts on the other
side of refrigerant piping lines
Suction Line
• Mount the suction flare nut (Large nut) on the
other side of suction refrigerant piping line.
• Mount the liquid flare nut (Small nut) on the other
side of liquid refrigerant piping line.
Refrigerant Piping Lines After
Connecting Flare Nuts From Both Sides
30
CONNECTING REFRIGERANT PIPING (Cont.)
15-10 STEPS FOR CONNECTING REFRIGERANT PIPING LINES TO INDOOR UNIT
Connecting suction and liquid piping
lines respectively with suction and
liquid half unions of indoor unit.
A. Lubricate suction and liquid piping line end
and the threads of the suction and liquid half
unions of indoor unit with anti – freeze oil.
This is effective for reducing gas leaks.
Pot only from oil
refrigerating her and her
B. For proper connection, align the centers of
suction union pipe and flare pipe straight with
each other, then finger tighten several turns
the flare nut tightly at first to obtain a smooth
match.
Half Union
Flare nut
Flare Spanner
or
Torque Wrench
C. Then hold the union side with a double-ended
wrench and tighten the flare nut by applying
the tightening torque indicated in the
following table (1). Be careful not to damage
the flare nut threads.
Piping Lines
Table (1)
NOTE:
One. Insufficient tightening torque will
cause Freon leaks.
Two. Over tightening the fitting will
damage the tube flaring and cause
Freon leaks.
Flare Nut
3/8”
5/8”
Indoor
Side
Tightening Torque
Kg - Cm
N.M
Kg - cm
31-35
310-350
50-55
500-550
15-11 STEPS FOR CONNECTING REFRIGERANT PIPING LINES TO OUTDOOR UNIT
• Connecting the other ends of suction and
liquid piping lines respectively with suction
and liquid flare couplings of the outdoor
unit.
• Repeat steps (A), (B), (C) when connecting
refrigerant piping lines to the couplings of
the outdoor unit.
(1)
(2)
Fingers tighten
several turns the
flare nuts of piping
at the outdoor unit
valves.
Tighten the flare
nuts with
adjustable wrench
or torque wrench.
31
CONNECTING REFRIGERANT PIPING LINES (Cont.)
15-12 AIR AND MOISTURE PURGE
In some countries the law does not permit purging by blowing refrigerant through the lines.
If this is the case, please refer to page (31) using the vacuum pump.
(A) AIR PURGE USING REFRIGERANT
IN THE UNIT OUTDOOR UNIT
Air and moisture in the refrigerant
system have undesirable effects.
They must be purged completely.
The outdoor unit includes an extra
50 grams of refrigerant for air purge.
10
6
7&9
1
2
4
8
3
5
(1) Suction flare valve.
(2) Suction service valve.
(3) Suction port to open & close.
(4) Cap for suction service valve.
(5) Cap for suction port.
(6) Liquid flare valve.
(7) Liquid service valve.
(8) Liquid port to open & close.
(9) Cap for liquid service valve.
(10) Cap for liquid port.
• Air purging procedure
(1)
(2)
Remove service port nut
of suction valve.
CLOSE
Reinstall the caps and of the
liquid valve, suction valve
and service port nut.
(3)
(4)
OPEN
COMPLETE
(5)
Open the liquid valve for about 3
seconds, then close quickly to check
for gas leaks.
After checking for gas leaks, open the
liquid and suction valve all the way.
32
Loosen the valve stem of liquid
valve by 90 degrees (1/4 turn) for 5
seconds with a hex key wrench
PUSH
Remove the valve caps of
suction & liquid valve.
OPEN & CLOSE
OPEN
OPEN
(1)
Push the valve core of the
suction valve.
Stop pushing the valve core as
soon as the refrigerant hissing
stops.
CONNECTING REFRIGERANT PIPING LINES (Cont.)
AIR AND MOISTURE PURGE (Cont.)
(B) AIR PURGE USING THE VACUUM PUMP
1. Connect the gauge manifold and the vacuum pump.
Indoor Unit
2. Open the low-pressure valve and close the highpressure valve of gauge manifold completely.
3. Operate the vacuum pump during at least 20 minutes
until the pressure reaches – 101Kpa (-760mm Hg).
4. Close the low-pressure valve of the gauge manifold
and stop the vacuum pump operation.
(If the indicator of gauge manifold is returned within
1-2 minute after stopping the vacuum pump, check
the piping connection leakage).
Vacuum
Pump
Suction
Line
Liquid
Line
5. Close both the liquid and suction valve caps completely.
6. Remove the gauge manifold and the vacuum pump.
(During the disconnection, please be cautious not to loose
any refrigerant and oil).
Outdoor Unit
7. Reinstall the valve caps and service port nuts.
(C) NOTES:
Tighten the valve caps and the service port nut to the
specified torque as shown in the table:
PART
TIGHTENING TORQUE
(Kgf – Cm)
SERVICE PORT NUT
150 → 200
VALVE CAP
170 → 220
Valve Cap
Split System 53QG Series
Low
pressure valve
Hex key Wrench
High
pressure valve
Valve Stem
Gauge manifold
Valve Core
Vacuum Pump
Service Port Nut
Valve Cap
CONNECTION DIAGRAM OF VACUUM PUMP
33
CONNECTING REFRIGERANT PIPING LINES (Cont.)
15-13 REFRIGERANT LEAK CHECK
After connecting the refrigerant piping lines, with both
outdoor and indoor units check the joints for leakage with
electronic leak detector or soapy water.
15-14 INSULATING REFRIGERANT PIPING LINES
To conserve energy and prevent wet floors due to
condensation, the suction and liquid piping lines must be well
insulated with a proper insulation material.
Fastening tape
The thickness of the insulation should be a minimum of 9 mm.
The insulation you select must have good insulation
characteristic, be easy to use, resist age and not easily absorb
moisture.
Pipe
Insulation
Pipe
Finally wrap the flare couplings and pipes with insulation and
tighten this with tape without exerting too much pressure on
the insulation.
CAUTION:
• After a pipe has been insulated, never try to bend it into a
narrow curve, as this way will cause the pipe to break or
crack.
• Repair and cover any possible cracks in the insulation
• Avoid dripping due to insufficient insulation of piping.
15-15 PUMP DOWN
Pump down means collecting all the refrigerant in the system
back into the outdoor unit. Pump down must be actuated
before disconnection of pipes, to avoid loss of refrigerant gas.
Pump down is used when the unit is moved to another
installation location or when the system is repaired.
PUMP DOWN PROCEDURE :
1. Close the liquid valve with the Allen wrench.
2. Turn the system ON in cooling mode with fan
operating at high speed.
Then the refrigerant will be collected into the outdoor unit.
(Compressor will immediately start, provided 3
minutes have elapsed since the last stop).
Unit on
Cooling
2
Wait about
3 minutes
3- After 3 minutes of operation, close the suction valve
with the Allen wrench.
Turn the system off and switch mains supply OFF.
Disconnect refrigerant piping lines.
After disconnection, protect valves and piping ends
from dust.
3
3
34
1
16. CONNECTING CONDENSATE DRAIN LINE
16-1 INSTRUCTIONS FOR CONNECTING CONDENSATE DRAIN LINE
The condensate drain line (not supplied) for indoor unit must be made of PVC piping with an inside
diameter of 5/8” (16 mm) and have suitable length for the chosen installation site.
Possible outlet locations of condensate
drain line from the indoor unit
Instructions for connecting drain hose
a. The drain hose must be
gradually inclined downwards
to the outside to ensure flow
of condensate water to outside.
The condensate drain line is connected to the loose
end of the drain hose coming out of the indoor unit in
one of the following four outlet locations:
3
1
b. The condensate drain line
must not be connected to
the sewerage system.
4
2
c. The drain hose must not be
looped upwards to avoid
over-flowing of condensate
water.
Sr. Outlet Location
Notes
1 Unit Right
Remove right side knock-out
2 Unit Bottom
Remove bottom knock-out
Do not remove side or
3 Unit Back
bottom knock-out
4 Unit Left
Remove left side knock-out
d. The drain hose must have no kinks or bends hampering smooth drainage of water due to air stagnation.
Avoid horizontal kinks or bends
Avoid horizontal drain line with
Less than 2 % slope
Avoid vertical kinks or bends
Avoid any rise in drain line
e. Drainage Test
Check the drainage of the unit by pouring some water into the unit drain pan and ensure it drains out
through the drain hose and there is no leakage from other parts.
35
17. CONNECTING ELECTRICAL WIRING
17-1 ELECTRICAL WIRING BETWEEN ELECTRICAL POWER SUPPLY
AND CIRCUIT BREAKER OF AIR CONDITIONER
WARNING All electrical connections between electrical power supply and circuit breaker of air conditioner
are the responsibility of the customer and must be done by a qualified electrical technician
!
according to national electrical wiring regulations to avoid fire due to short-circuiting.
(A) Operating Voltage
The operating voltage of electrical power supply should be within the limits of voltage mentioned
on unit nameplate data.
(B) Electrical kWh Counter KWH
The capacity of electrical kWh counter should be lager than the operating currents required for air
conditioner(s) and any other electrical domestic appliances in use simultaneously from the same
supply.
(C) Electrical Distribution Box
The installation of electrical distribution box after the electrical KWH counter is necessary
to properly distribute the electrical loads.
The electrical distribution box should be equipped with circuit breakers according to the electrical
loads.
For each installed air conditioner, a separate circuit breaker with its own overload should be
installed on the electrical distribution box.
(D) Operation On / Off Circuit Breaker
The installation of two pole automatic circuit breaker is necessary to operate the air conditioner.
The circuit breaker must be installed to be far away from any flammable materials (curtains…etc.).
The circuit breaker must be suitable for air conditioner as the table “ ELECTRICAL DATA “
Page (38)
Do not use operation ON / OFF circuit breakers except the approved models for use with air
conditioners.
(E) Electrical Cable
Do not use electrical connection cables except the approved for use with air conditioners.
The power cable should be a complete unit, without extensions.
The power cable size must be suitable for the air conditioner with length up to 15 meter.
See table “ ELECTRICAL DATA “ page (38).
Note :
For cable lengths more than 15 meter, use cable of larger cross section.
(F) Electrical Wiring
a. Make ground connection prior to any other electrical connections in accordance with the
electrical codes.
b. Ensure that mains supply connection is made through a switch that disconnects all poles,
with contact gap of at least 3 mm.
c. Avoid slack connections of the electrical cords when connected to the terminal blocks of indoor
and outdoor units. These slack connections lead to voltage drop and unit malfunctions.
36
CONNECTING ELECTRICAL WIRING (Cont.)
17-2 ELECTRICAL WIRING BETWEEN INDOOR UNIT, OUTDOOR UNIT
AND CIRCUIT BREAKER OF AIR CONDITIONER
WARNING All electrical connections between the outdoor unit, indoor unit and circuit breaker are the
responsibility of the qualified installer and must be done according to national electrical
!
wiring regulations to avoid fire due to short circuiting.
- Both of the outdoor and indoor units leave the factory with complete internal electrical wiring.
Do not change any internal electrical wiring of both units.
- A qualified electrical technician should carry out the electrical connections.
- It is very important before making the electrical connections between the indoor, outdoor units,
and the power supply, to pay attention to the following safety instructions:
(A) Operating Voltage
The operating voltage of electrical power supply should be within the limits of voltage mentioned on unit
nameplate data.
Shown on the indoor and outdoor units of the air conditioner.
(B) Field Electrical Connection Cables
* Do not use electrical connection cords except the approved one for use with air conditioners.
* Each cable should be a complete unit, without extensions.
(C) Electrical Connections
a. Check that the electrical connections between the terminal blocks of indoor and outdoor units are in
accordance with the wiring diagrams and caution field electrical wiring contained in the manual.
Miswiring may cause malfunction of the system and an electric shock.
b. Do not connect wires when power is ON.
c. Make ground connection prior to any other electrical connections in accordance with the electrical
local codes.
d. Make electrical connections between outdoor and indoor units prior to proceeding to mains supply
connection.
e. Before proceeding with the unit connection to the mains supply locates live L and neutral N, then
make connections as shown in the wiring diagram.
Be sure that the live and neutral wire connected respectively to the Live (L) and the Neutral (N)
terminals of terminal block of outdoor units.
f. Ensure that mains supply connection is made through a switch that disconnects all poles, with
contact gap of at least 3 mm.
g.
Avoid slack connections of the electrical cords when connected to the terminal blocks of indoor
and outdoor units. and also to circuit breaker These slack connections lead to voltage drop and unit
malfunctions. Every wire must be connected firmly.
37
CONNECTING ELECTRICAL WIRING (Cont.)
17-3 ELECTRICAL DATA
Main Power
Connections
Input Power
Split
System
Model
Heat Pump
Starting
Current
(Note 1)
Amp
System
Power
Supply
V/Ph/Hz
Cooling
35 °C
46 °C
52 °C
*
**
***
Amp Watt Amp Watt Amp
Heating
****
Watt Amp Watt
Circuit
Breaker
Wire
Size
(Note 2)
Amp
mm²
20
25
4
4
20
25
4
4
Amp
mm²
20
25
4
4
Standard mild ambient outdoor unit with rotary compressor
53QG18-H
53QG24-H
52
78
220/1/50
9.5
11.8
1945 11.5 2425
2435 13.9 2880
15.1
3130
805 1745
11.8 2460
High ambient outdoor unit with rotary compressor
53QG18-H
53QG24-H
44
66
220/1/50
8.6
12.2
1940 10.2 2270
2635 14.2 3090
11.1
15.3
Cool Only
Amp
V/Ph/Hz
Amp Watt Amp Watt Amp
2450
3340
7.5 1660
11.3 2490
Watt Amp Watt
High ambient outdoor unit with rotary compressor
53QG18-C
53QG24-C
44
66
220/1/50
8.5
12.5
1880 9.8 2160
2550 14.4 3015
10.5
15.5
2320
3270
-
-
Notes:
1. Starting Current duration is usually less than 1 Second.
2. Wire size shown applies to standard applications with line length up to 15 meter and a subsequent
voltage drop not to exceed 3%.
For specific conditions and long lines, the resulting voltage drop must be checked and it may be
necessary to use the next larger size.
When sizing wires consider the amperage at peak conditions with the highest possible ambient
temperature expected for the installation area and lowest probable line voltage.
3.
Operating Conditions.
*
Indoor 27/19 °C DBT/WBT Outdoor 35 °C DBT
High speed of indoor unit motor
**
Indoor 27/19 °C DBT/WBT Outdoor 46 °C DBT
High speed of indoor unit motor
***
Indoor 27/19 °C DBT/WBT Outdoor 52 °C DBT
High speed of indoor unit motor
**** Indoor 20 °C DBT
Outdoor 7/6 °C DBT/WBT
High speed of indoor unit motor
38
CONNECTING ELECTRICAL WIRING (Cont.)
17-4 CONNECTING ELECTRICAL WIRING FOR HEAT PUMP SYSTEM
Indoor
Unit
LEGEND
L
Live power supply.
N
Neutral power supply.
R
Live connection indoor/outdoor unit.
C
Neutral connection indoor/outdoor unit.
Y
Compressor control.
O
Reversing valve control.
W2
Outdoor fan motor control.
S
Outdoor coil sensor.
Circuit
Breaker
Main
Switch
220-240V ~ 50Hz
Earth
Outdoor
Unit
Sizes of electrical wires
R
1 mm2
C
1 mm2
Y
1 mm2
O
1 mm2
W2
1 mm2
S
1 mm2
L
4 mm2
N
4 mm2
17-5 CONNECTING ELECTRICAL WIRING FOR COOL ONLY SYSTEM
Indoor
Unit
LEGEND
R
L
Live power supply.
N
Neutral power supply.
R
Live connection indoor/outdoor unit.
C
Neutral connection indoor/outdoor unit.
Y
Compressor control.
Sizes of electrical wires
C
1 mm2
Y
1 mm2
Y
Circuit
Breaker
R
R
1 mm2
C
L
4 mm2
C
Main
Switch
Y
Outdoor
Unit
N
4 mm2
Note: (1) Connect the power supply to the outdoor unit and then get the power required
for the indoor unit from the outdoor unit.
(2) All dotted lines to be fitted by installer.
(3) Refer to wiring diagrams and stickers-caution sticked inside the outdoor & indoor units.
39
220-240V ~ 50Hz
Earth
18. FINISHING INSTALLATION
18-1 FINISHING STEPS FOR INSTALLATION
a. Tie together refrigerant piping, drain
hose, electrical connection cords.
Form the refrigerant piping in the required
direction and bind the drain hose, electrical
connection cord and signal line together with
vinyl tape.
• The drain hose should be always at the bottom
of lump to assure smooth drainage.
• The lump must be of circular shape.
Electric Cables &
Di-frost sensor cable
Suction
Line
Liquid Line
d. Insert grille frame to the top of the
indoor unit body.
e. Push the triangle marks located at the
bottom of the grill frame.
Drain Hose
Piping
Decorative Tape
Saddles
b. Fill the gap between the outside wall
pipe hole and the piping with sealing
wall sleeve, wall cap and sealer so that
rain and wind cannot enter.
Wall Sleeve
f. Fix the grille frame by the two screws
Fix the terminal block cover by the two
screws.
Wall Cap
Sealer Putty
Indoor Side
g. Mount insert grille to the top of indoor
unit body with both hands and fit it to
the latch of the grille frame.
Outdoor side
Wall
c. Adjust the internal deflectors of supply
air for correct air diffusion to the right
or left direction as per the requirements
for the room to be air-conditioned
h. Check that the return air sensor is
properly fixed and inside its plastic clipon the indoor coil.
i. After completion of electrical wiring to the outdoor unit:
• Fasten the electrical cords with the cable clamp.
• Install again the service door.
40
19. TEST RUNNING
19.1 Note:
-
Operate test running after mounting air filters, return grill and cabinet.
Operate testing running after completion of connecting refrigerant piping lines,
drain line and electrical wiring
19.2 STEPS FOR COOLING TEST RUNNING
a. Move circuit breaker to ON position.
Outdoor Unit
Details
(1)
b. After system operation becomes stabilized:
- Measure high and low pressures to check
correct refrigerant charge. (See figure & table)
- Measure total Amps consumed by the system.
- Measure System working voltage.
(2)
1.
High Pressure Measuring.
2.
Low Pressure Measuring.
System Cooling Test Running
SYSTEM MODEL
AMBIENT TEMP ºC
HIGH PRESSURE
LOW PRESSURE
PSI
PSI
TOTAL AMPS
53QG18-H
35
40
46
280
315
350
72
75
79
9.5
10.5 11.5
35
260
60
11.8
53QG24-H
40
46
305
345
62
64
12.7 13.9
52
390
66
15.1
Notes:
1- Readings at 220 volt and 27 ºC return air to indoor unit
and high speed of indoor unit motor.
2- System with Standard mild ambient outdoor unit with rotary compressor.
SYSTEM MODEL
AMBIENT TEMP ºC
HIGH PRESSURE
LOW PRESSURE
PSI
PSI
TOTAL AMPS
35
280
73
8.6
53QG18-H
53QG24-H
40
46
52
35
40
46
52
312 343 392 267 300 334 382
75
77
79
65
67
69
71
9.3 10.1 11.1 12.2 13.1 14.0 15.3
Notes:
1- Readings at 220 volt and 27 ºC return air to indoor unit
and high speed of indoor unit motor.
2- System with High ambient outdoor unit with rotary compressor.
SYSTEM MODEL
AMBIENT TEMP ºC
35
HIGH PRESSURE PSI 260
LOW PRESSURE PSI 69
TOTAL AMPS
8.5
53QG18-C
40
46
295 330
71
73
9.1 9.8
53QG24-C
52
35
40
46
52
370 260 297 335 375
75
62
64
66
68
10.5 12.5 13.4 14.4 15.5
Notes:
1- Readings at 220 volt and 27 ºC return air to indoor unit
and high speed of indoor unit motor.
2- System with High ambient outdoor unit with rotary compressor.
41
TEST RUNNING (Cont.)
19.4 STEPS FOR HEATING TEST RUNNING
a. Move circuit breaker to ON position.
(1)
Outdoor Unit
Details
b. After system operation becomes stabilized:
- Measure high and low pressures to check
correct refrigerant charge. (See figure)
- Measure total Amps consumed by the system.
- Measure system-working voltage.
(2)
1. Low Pressure Measuring.
2. High Pressure Measuring.
System Heating Test Running
SYSTEM MODEL
AMBIENT TEMP ºC
HIGH PRESSURE PSI
LOW PRESSURE PSI
TOTAL AMPS
53QG18-H
7
240
52
8.5
53QG24-H
7
260
50
11.8
Notes:
1- Readings at 220 volt and 20 ºC return air to indoor unit
and high speed of indoor unit motor.
2- System with Standard mild ambient outdoor unit with rotary compressor.
SYSTEM MODEL
AMBIENT TEMP ºC
HIGH PRESSURE PSI
LOW PRESSURE PSI
TOTAL AMPS
53QG18-H
7
230
60
7.5
Notes:
53QG24-H
7
250
60
11.3
1- Readings at 220 volt and 20 ºC return air to indoor unit
and high speed of indoor unit motor.
2- System with High ambient outdoor unit with rotary compressor.
42
20. AIR CIRCULATION FOR INDOOR UNIT 42QG SERIES
Air is supplied into the room through the supply grilles located on the bottom of the cabinet of the indoor unit.
Air from the room is drawn into the indoor unit through the return grille and filters at the top of the indoor unit.
• Make absolutely sure that the supply and return grilles of the indoor units are not obstructed (even partially).
The airflow direction can be adjusted to optimize air distribution in the room.
Press button SWING repeatedly to choose one of the following louver positions:
Symbol on display
Air direction will be set automatically.
Louver will be set to the preset position
according to the operation mode.
• In Cool or Dry or Fan mode, the louvre will swing in cooling range.
• In Heat mode, the louvre will swing in heating range.
Swing Range
COOL
HEAT
6 positions can be chosen.
The louvre can be set to one
of 6 different airflow directions.
The louver will continuously swing up and down.
“Swing” always assures optimal even air distribution in the room.
Notes:
•
•
•
Please do not fix the flap at position 6 for a long time, because this position
minimizes air circulation resulting in uneven room temperature.
Do not adjust the flap by the hand during SWING operation because it may damage
the air swing mechanism.
If you want maximum cooling or heating capacity, please set louvre at position 4
43
21. AFTER INSTALLATION CHECK LIST
21.1 INDOOR UNIT
a. The installation location is adequate.
b. The unit is solidly mounted and leveled.
c. The air filters are installed correctly.
d. The internal deflectors of supply air are adjusted for correct air diffusion.
21.2 OUTDOOR UNIT
a. The installation location is adequate.
b. The unit is solidly mounted and leveled.
c. The wall support is fixed properly with the wall.
d. The service door and its fixing screw are replaced.
21.3 REFRIGERANT PIPING LINES CONNECTIONS
a. The refrigerant piping lines are adequate with system model.
b. The insulation is wrapped on the coupling connections.
c. The air purge is properly done.
d. The refrigerant piping lines are tested for refrigerant leakage.
e. The service valves for suction and liquid in outdoor unit are open.
f. The cap nuts for flare valves are properly tightened.
21.4 CONDENSATE DRAIN LINE CONNECTIONS
a. The Condensate drain line from indoor unit is gradually inclined downwards to the
outside.
b. The Condensate water flow smoothly.
21.5 ELECTRICAL CONNECTIONS
a. The operating voltage electrical power supply is in the voltage range shown on the
unit’s nameplates.
b. The sizes of electrical connection cords are adequate according to system model.
c. The size and type of unit circuit breaker are adequate according to system model.
d. The electrical wiring connections between power supply, outdoor unit, indoor unit
and circuit breaker are adequate.
e. All fields electrical wiring connections are tightened and secured.
f. The earth wire is connected to the ground.
44
INSTALLATION CHECK LIST (Cont.)
21.6 FINISHING INSTALLATION
a. The refrigerant piping lines, electrical cables and drain hose are lumped together.
The drain hose is at the bottom of lump.
b. The wall passage hole is properly sealed.
21.7 TESTING RUNNING
a. The cooling and heating cycles are tested
At least one complete cooling cycle of unit operation is observed.
At least one complete heating cycle of unit operation is observed.
b. There is no any abnormal noise or vibration from the outdoor unit during operation.
c. There is no any abnormal noise or vibration from the indoor unit during operation.
d. The wireless remote control operate Correctly.
e. Each lamp on the indoor unit lights normally.
21.8 CUSTOMER GUIDANCE
a. The correct operation of the air conditioner has been explained to the customer
including the following points:
•
Starting and stopping method
•
Operation switching
•
Temperature adjustment
•
Timer Function
•
Air Flow switching
•
Other remote control operations
•
How to use the air louvers
•
Filter removal and cleaning
b. The operation and installation manuals have been given to the customer.
45
22. INSTALLATION OF OPTIONAL AIR FILTERS
22.1 NOTE:
Optional set of air filters can be added and field installed as shown below.
22.2 TYPE OF AIR FILTERS:
Standard anti – bacteria air filters for dust & bacteria removal
Optional carbon filter for odor removal
Optional photo-catalytic filter for cigarette smoke removal
22.3 INSTALLATION STEPS OF OPTIONAL AIR FILTERS:
Step (1): After lifting return air grill up to the top of the unit, pull the standard air filters downward.
Step (2): Install optional air filters inside the top guides of the unit (specified for optional air filters),
then install standard air filters.
Step (3): Install return air grille and close it.
46
23. SELF DIAGNOSTIC FUNCTION FOR MALFUNCTIONS DETECTION
EXPLAINATION OF SELF-DIAGNOSTIC FUNCTION
- Self-diagnostic function is the key for success of air conditioner operation.
- The printed circuit boards existing inside the indoor unit are equipped with self-diagnostic function
to detect malfunction and automatically stops the operation at the air conditioner.
- Once a malfunction is detected, the diagnostic control section will force the system mode to OFF
for 3 minutes. After the OFF delay, system mode releases and allowed returning to its normal state.
The system will be allowed to restart on its own.
The diagnostic control section will allow the system to fail 5 consecutive times before shutting
down the system.
If the system is performing an active defrost, both the compressor drive and reversing valve
malfunction test will be cancelled and reinitiated after the following compressor OFF-ON cycle.
-
The unit on lamp is scanned every half-second and the error codes are displayed by the flashing
frequency of unit on lamp. The error codes are displayed during SHUT-OFF (3 minutes off and after
the 5th retry failure).
1 : Green led flashes
if there is a malfunction
3 : Reset Button
3
1
Malfunction
Reason
Flashing
Frequency
Allowed
Modes
Return Air Sensor
3
Fan Only
Indoor Coil Sensor
4
Fan Only
Compressor Drive
9
Fan Only
Electronic Control PCB (EEPROM)
10
Fan Only
Notes :
1- Prior to the malfunction repair, disconnect the electrical mains supply by moving the circuit
breaker to OFF position.
2- After repairing the malfunction:
2-1 Press Reset button (3)
2-2 connect the electrical main supply by moving the circuit breaker to ON position
2-3 operate the air conditioner by using the wireless remote control.
47
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