Room Air Conditioner
Service and Parts
Manual
Off
Med
Fan
High
Cool
Low
Fan
Med
Cool
Temperature
Mode
Warmer
Cooler
Low Cool
Slider Casement
115Volts • SV08A10 • SV10A10 • SV12A10
SV08 / SV10 / SV12 (01/03)
1.3 SPECIFICATIONS
1.3.1 FOR SV08A10 / SV10A10 / SV12A10
MODELS
SV08A10
SV10A10
SV12A10
ITEMS
115V, 60Hz
10,000
1,050
POWER SUPPLY
COOLING CAPACITY
INPUT
8,000
840
12,000
1,260
11.5
(Btu/h)
(W)
7.7
9.6
RUNNING CURRENT
(A)
.
9.5
E.E.R
(BTU/W h)
OPERATING
26.7(DB)*
35(DB)*
19.4(WB)**
23.9(WB)**
INDOOR (°C)
OUTDOOR (°C)
CONDITION
460g(16.2 oz)
530g(18.7 oz)
510g(18.0 oz)
REFRIGERANT (R-22) CHARGE
EVAPORATOR
2 ROW 16 STACKS, SLIT FIN TYPE
3 ROW 16 STACKS, SLIT FIN TYPE
2 ROW 23 STACKS,
LOUVER FIN TYPE
TURBO FAN
AXIAL FAN
CONDENSER
FAN, INDOOR
FAN, OUTDOOR
2/3
FAN SPEEDS, FAN/COOLING
FAN MOTOR
6 POLES
ROTARY SWITCH
THERMOSTAT
OPERATION CONTROL
ROOM TEMP. CONTROL
VERTICAL LOUVER (RIGHT & LEFT)
HORIZONTAL LOUVER (UP & DOWN)
TOP-DOWN CHASSIS
AIR DIRECTION CONTROL
CONSTRUCTION
OVERLOAD PROTECTOR
COMPRESSOR
PROTECTOR
INTERNAL THERMAL PROTECTOR
3 WIRE WITH GROUNDING
FAN MOTOR
POWER CORD
ATTACHMENT PLUG (CORD-CONNECTED TYPE)
DRAIN PIPE SPLASHED BY FAN SLINGER
DRAIN SYSTEM
66/30
77/35
79/36
NET WEIGHT
(lbs/kg)
(inch)
(mm)
141/2 x 201/2 x 233/5
368 x 521 x 607
OUTSIDE DIMENSION
(W x H x D)
* DB:Dry Bulb
**WB:Wet Bulb
—3—
1.4 FEATURES
• Built-in adjustable THERMOSTAT
• Washable one-touch filter
• Compact size
• Designed for COOLING ONLY.
• Powerful and whispering cooling.
• Simple installation and service.
• Low air-intake, top cooled-air discharge.
• Reliable and efficient rotary compressor is equipped.
1.5 CONTROL LOCATIONS
1.5.1 COOLING ONLY MODEL
• VENTILATION
The ventilation lever must be in the CLOSE position
in order to maintain the best cooling conditions.
When a fresh air is necessary in the room, set the
ventilation lever OPEN position.
The damper is opened and room air is exhausted.
CLOSE
VENT
OPEN
• TEMPERATURE
Thermostat will automatically control the temperature
of the room. Select a higher grade for a cooler
temperature in the room. The temperature is selected
by moving the knob to the desired position.
• MODE
- Turns air conditioner off.
Off
- Med speed fan operation without cooling.
- Low speed fan operation without cooling.
- Cooling with high speed fan operation.
- Cooling with med speed fan operation.
- Cooling with low speed fan operation.
Med
Fan
High
Cool
Low
Fan
Med
Cool
Temperature
Mode
Warmer
Cooler
Low Cool
NOTE!
Before using the air conditioner
secure the front grille with two screws
enclosed with the owner’s manual.
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1. Open the inlet grille downward and
remove the air filter.
2. Fasten the front grille with screws.
3. Reinstall the air filter.
4. Close the inlet grille.
Inlet Grille
—4—
2. DISASSEMBLY INSTRUCTIONS
— Before the following disassembly, set POWER SWITCH to OFF and disconnect the power cord.
2.1 MECHANICAL PARTS
2.1.1 FRONT GRILLE
1. Open the inlet grille downward and remove the air
filter.
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2. Remove the screws which fasten the front
grille.(See Figure 1)
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3. Pull the front grille from the right side.
4. Remove the front grille.(There are 4 hooks.)
5. Re-install the components by referring to the
removal procedure, above.
2.1.2 CABINET
Inlet Grille
1. After disassembling the FRONT GRILLE, remove
the 6 screws which fasten the cabinet at both
sides.(See Figure 2)
Figure 1
2. Remove the 4 screws which fasten the cabinet at
back.
3. Remove the cabinet.
4. Re-install the components by referring to the
removal procedure, above.
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2.1.3 CONTROL BOX
1. Remove the front grille. (Refer to section 2.1.1)
2. Remove the cabinet. (Refer to section 2.1.2)
3. Remove the 1 screw which fasten the power cord.
(See Figure 3)
4. Disconnect the grounding screw from the
evaporator channel.
Figure 2
5. Remove the 2 screws which fasten the control
box.(See Figure 3)
6. Remove the housing which connects motor wire
in the control box.
7. Remove three leads which connect compressor.
8. Discharge the capacitor by placing a 20,000 ohm
resistor across the capacitor terminals.
9. Raise the control box upward completely.
10. Re-install the components by referring to the
removal procedure, above.
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(Refer to the circuit diagram found on pages
21~22 in this manual and on the control box.)
Figure 3
—5—
2.2 AIR HANDLING PARTS
2.2.1 AIR GUIDE AND TURBO FAN
1. Remove the front grille. (Refer to section 2.1.1)
2. Remove the cabinet. (Refer to section 2.1.2)
3. Remove the control box. (Refer to section 2.1.3)
4. Remove the 4 screws which fasten the brace.
5. Remove the brace.
6. Remove the 2 screws which fasten the upper air
guide. (See Figure 4)
7. Remove the upper air guide.
8. Remove the 2 screws which fasten the
evaporator.
Figure 4
9. Move the evaporator forward and pulling it upward
slightly. (See Figure 5)
10. Remove orifice by pulling two taps.
11. Remove the clamp with a hand plier which
secures the turbo fan.
12. Remove the turbo fan. (See Figure 6)
13. Remove the motor. (Refer to section 2.3.7)
14. Remove the 2 screws which fasten the lower air
guide from the base pan.
15. Remove the 2 screws which fasten the motor
mount from the base pan.
16. Remove the 2 screws which fasten the lower air
guide and motor mount.
Figure 5
17. Move the lower air guide backward and pull out
from the base pan. (Move the lower air giude
carefully.)
18. Re-install the components by referring to the
removal procedure, above.
2.2.2 FAN
1. Remove the cabinet. (Refer to section 2.1.2)
2. Remove the brace (Refer to section 2.2.1)
3. Remove 6 screws which fasten the condenser.
4. Move the condenser to the right carefully.
Figure 6
5. Remove the clamp with a hand plier which secures the
fan.
6. Remove the fan. (See Figure 7)
7. Re-install by referring to the removal procedure.
Figure 7
—6—
2.2.3 SHROUD
1. Remove the fan. (Refer to section 2.2.2)
2. Remove the shroud. (See Figure 8)
3. Re-install the components by referring to the
removal procedure, above.
Figure 8
2.3 ELECTRICAL PARTS
2.3.1 OVERLOAD PROTECTOR
1. Remove the cabinet. (Refer to section 2.1.2)
2. Remove the nut which fastens the terminal cover.
3. Remove the terminal cover. (See Figure 9)
4. Remove all the leads from the overload protector.
5. Remove the overload protector.
6. Re-install the components by referring to the
removal procedure, above.
2.3.2 COMPRESSOR
Figure 9
1. Remove the cabinet. (Refer to section 2.1.2)
2. Discharge the refrigerant system using a FreonTM
Recovery System.
If there is no valve to attach the recovery system,
install one (such as a WATCO A-1) before venting
the FreonTM. Leave the valve in place after
servicing the system.
3. Remove the overload protector. (Refer to section
2.3.1)
4. After purging the unit completely, unbraze the
suction and discharge tubes at the compressor
connections.
5. Remove the 3 nuts and the 3 washers which
fasten the compressor.
6. Remove the compressor. (See Figure 10)
7. Re-install the components by referring to the
removal procedure, above.
Figure 10
—7—
2.3.3 CAPACITOR
1. Remove the cabinet. (Refer to section 2.1.2)
2. Remove the screw and the clamp which fastens the
capacitor.
3. Disconnect all the leads of capacitor terminals.
4. Re-install the components by referring to the
removal procedure, above. (See Figure 11)
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Cooler
High
Cool
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Med
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Figure 11
2.3.4 POWER CORD
1. Remove the cabinet. (Refer to section 2.1.2)
2. Disconnect the grounding screw from the control
box.
3. Disconnect the 2 receptacles.
4. Remove a screw which fastens the clip cord.
(See Figure 12)
5. Remove the power cord.
6. Re-install the component by referring to the above
removal procedure, above.
Figure 12
(Use only one ground-marked hole
connection.)
for ground
7. If the supply cord of this appliance is damaged, it
must be replaced by the special cord. (The
special cord means the cord which has the same
specification marked on the supply cord attached at
the unit.)
2.3.5 THERMOSTAT
1. Remove the cabinet. (Refer to section 2.1.2)
2. Remove the 2 screws which fasten the thermostat.
3. Disconnect 2 leads of thermostat terminals.
4. Remove the thermostat.
Figure 13
5. Re-install the components by refering to the above
removal procedure. (See Figure 13)
2.3.6 ROTARY SWITCH
1. Remove the cabinet. (Refer to section 2.1.2)
2. Remove the 2 screws which fasten the rotary
switch.
3. Disconnect all the leads of the rotary switch
terminals.
4. Remove the rotary switch.
5. Re-install the components by referring to the
above removal procedure. (See Figure 14)
Figure 14
—8—
2.3.7 MOTOR
1. Remove the cabinet. (Refer to section 2.1.2)
2. Remove the turbo fan. (Refer to section 2.2.1)
3. Remove the fan. (Refer to section 2.2.2)
4. Remove the 4 screws which fasten the motor from
the Motor Mount. (See Figure 15)
5. Remove the motor.
6. Re-install the components by referring to the
removal procedure, above.(See Figure 15)
2.4 REFRIGERATING CYCLE
2.4.1 CONDENSER
Figure 15
CAUTION
Discharge the refrigerant system using a
FreonTM Recovery System.
If there is no valve to attach the recovery
system, install one (such as a WATCO A-1)
before venting the FreonTM. Leave the valve in
place after servicing the system.
1. Remove the cabinet. (Refer to section 2.1.2)
2. Remove the 4 screws which fasten the brace.
3. Remove the 4 screws which fasten the condenser
and shroud. (See Figure 16)
4. Remove the 2 screws which fasten the condenser
and base pan.
5. After discharging the refrigerant completely,
unbraze the interconnecting tube at the condenser
connections.
Figure 16
6. Remove the condenser.
7. Re-install the components by referring to notes.
(See Figure 16)
2.4.2 EVAPORATOR
1. Remove the cabinet. (Refer to section 2.1.2)
2. Remove the control box.(Refer to section 2.1.3)
3. Remove the upper air guide. (Refer to section
2.2.1)
4. Remove the 2 screws which fasten the evaporator
from lower air guide.
5. Move the evaporator sideways carefully.
(Refer to section 2.2.1)
6. After discharging the refrigerant completely,
unbraze the interconnecting tube at the evaporator
connections.
Figure 17
7. Remove the evaporator.
8. Re-install the components by referring to notes.
(See Figure 17)
—9—
2.4.3 CAPILLARY TUBE
3. Remove the capillary tube.
4. Re-install the components by referring to notes.
1. Remove the cabinet. (Refer to section 2.1.2)
2. After discharging the refrigerant completely,
unbraze the interconnecting tube at the capillary
tube.(See caution above)
NOTES
— Replacement of the refrigerant.
6. Recharge as follows :
1. When replacing the refrigerant, be sure to
TM
Discharge the refrigerant system using a Freon
recovery System.
1) Refrigeration cycle systems are charged from
the High-side. If the total charge cannot be put
in the High-side, the balance will be put in the
suction line through the access valve which you
installed as the system was opened.
2) Connect the charging cylinder as shown in figure
18B.
If there is no valve to attach the recovery system,
install one (such as a WATCO A-1) before venting
TM
the Freon . Leave the valve in place after
servicing the system.
2. After discharging the unit completely, remove the
desired component, and unbraze the pinch-off
tubes.
With valve C open, discharge the hose at the
manifold connection.
3. Solder service valves into the pinch-off tube ports,
leaving the valves open.
4. Solder the pinch-off tubes with Service valves.
5. Evacuate as follows.
3) Open valve A and allow the proper charge to
enter the system. Valve B is still closed.
4) If more charge is required, the high-side will not
take it. Close valve A.
1) Connect the vacuum pump, as illustrated figure
18A.
5) With the unit running, open valve B and add the
balance of the charge.
2) Start the vacuum pump, slowly open manifold
valves A and B with two full turns
counterclockwise and leave the valves open.
The vacuum pump is now pulling through valves
A and B up to valve C by means of the manifold
and entire system.
a. Do not add the liquid refrigerant to the Low-
side.
b. Watch the Low-side gauge; allow pressure to
rise to 30 lbs.
c. Turn off valve B and allow pressure to drop.
d. Repeat steps b. and c. until the balance of the
charge is in the system.
CAUTION
6) When satisfied the unit is operating correctly,
use the pinch-off tool with the unit still running
and clamp on to the pinch-off tube. Using a tube
cutter, cut the pinch-off tube about 2 inches from
the pinch-off tool. Use sil-fos solder and solder
pinch-off tube closed. Turn off the unit, allow it to
set for a while, and then test the leakage of the
pinch-off connection.
If high vacuum equipment is used, adjust valves
A and B so they are opened only slightly for a few
minutes, then open slowly with the two full turns
counterclockwise. This will keep oil from foaming
and being drawn into the vacuum pump.
3) Operate the vacuum pump for 20 to 30 minutes,
until 600 microns of vaccum is obtained. Close
valves A and B, and observe vacuum gauge for
a few minutes. A rise in pressure would
indicate a possible leak or moisture remaining in
the system. With valves A and B closed, stop
the vacuum pump.
4) Remove the hose from the vacuum pump and
place it on the charging cylinder. See figure
18B.
Open valve C.
Discharge the line at the manifold connection.
5) The system is now ready for final charging.
—10—
Equipment needed: Vacuum pump, Charging cylinder, Manifold gauge, Brazing equipment. Pin-off tool capable
of making a vapor-proof seal, Leak detector, Tubing cutter, Hand Tools to remove components, Service valve.
COMPOUND GAUGE
CONDENSER
(HIGH PRESSURE SIDE)
MANIFOLD
GAUGE
A
B
CAPILLARY TUBE
SEE INSETS
BELOW
EVAPORATOR
(LOW PRESSURE SIDE)
COMPRESSOR
HI
LOW
A
A
B
B
EXTERNAL
VACUUM PUMP
CHARGING
CYLINDER
C
Figure 18B-Charging
Figure 18A-Pulling Vacuum
—11—
3. INSTALLATION
3.1 HOW TO INSTALL THE UNIT
Awning
Fence
1. To avoid vibration and noise, make sure the unit is
installed securely and firmly.
2. Install the unit where the sunlight does not shine directly
on the unit.
Cooled air
Heat
radiation
If the unit receives direct sunlight, build an awning to
shade the cabinet.
3. There should be no obstacle, like a fence, within 20"
which might restrict heat radiation from the condenser.
4. To prevent reducing performance, install the unit so that
louvers of the cabinet are not blocked.
About 1/4"
Over 20"
5. Install the unit a little obliquely outward not to leak the
condensed water into the room (about 1/4").
6. Install the unit with its bottom portion 30~60" above the
floor level.
Figure 19
7. Stuff the foam between the top of the unit and the wall to
prevent air and insects from getting into the room.
8. The power cord must be connected to an independent
circuit. The green wire must be grounded.
9. Connect the drain tube to the base pan hole in the rear
side if you need to drain (consult a dealer).
Plastic hose or equivalent may be connected to the drain
tube.
3.2 CHECKING INSTALLATION
The setting conditions must be checked prior to
initial starting.
The items mentioned below are especially
important checking points when the installation is
finished.
1. Grounding wire (Green or Green and Yellow) is
provided in the power cord. The green wire must
be grounded.
BASE PAN
2. Connect to a single-outlet 15A circuit.
3. To avoid vibration or noise, make sure the air
conditioner is installed securely.
BOTTOM
Figure 20
1
DRAIN CAP
4 Avoid placing furniture or draperies in front of the
air inlet and outlet.
3.3. HOW TO DRAIN
(When using drain pipe)
The air conditioner must be installed horizontally or
tilted slightly to the outside for proper water
drainage.
BASE PAN
On exceptionally hot and humid days the air
conditioner may overflow condensed water.
If the air conditioner is used in hot and a high
BOTTOM
2
DRAIN PIPE
Figure 21
humidity zone, exchange the
DRAIN CAP for the
DRAIN PIPE.(See Figure 20, Figure 21)
—12—
3.4 WINDOW REQUIREMENTS
1. These instructions are for a horizontal sliding or a
casement window.
2. The electrical outlet must be within reach of the
power cord.
For installation in a casement window, the window
frame assembly and the side of the building must be
adequate to support the weight of the air conditioner.
21 1/2" min.
21" min.
40 1/2" max.
15 1/2" min.
16 1/2" max.
15 1/
"
min.2
Horizontal sliding window
Casement window
3.5 INSTALLATION KITS CONTENTS
Window Locking
Bracket
Curtain Frame Curtain
Side Guide
Upper Guide
Bracket
Support Bracket
Foam Seal Strip
Side Guide Seal
Leveling
bolt & nut
Side Guide
Window Track Seal
Bolt (2)
Nut (2)
Washer (2)
Type A (9)
Type B (3)
Type C (8)
—13—
3.6 HORIZONTAL SLIDING WINDOW INSTALLATION
Bolt
1. Loosely attach the support bracket to the bottom of
bracket using bolts, washers, and nuts. Attach the
leveling bolt and nut. (See Figure 22)
Bracket
Washer
Nut
Leveling Bolt & Nut
Support Bracket
Figure 22
2. Remove protective backing from window track seal
and apply seal to window track. (See Figure 23)
Window jamb
Type C screw
811/16 inches
3. Measure and lightly mark a line 8-1/4 inches from
window jamb. Center the support bracket assembly
on the window track and fasten with 4-type C screws.
(See Figure 23)
Window Track
Seal
Window Track
Figure 23
4. Put the support bracket against the outside wall and
tighten the bolts on top of the bracket. Adjust the
leveling bolt so that the air conditioner will be installed
with a very slight tilt (about 1/4") downward toward the
outside for proper drainage.
Outside W
all
Tighten the nut. (See Figure 24)
about 1/4"
Figure 24
NOTE: DO NOT drill a hole in the bottom of the base
pan. The air conditioner is designed to operate
with the bottom of the base pan approximately
half-full of water.
Fastening Side Guides
Upper Guide
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5. Fasten side guides to the sides of the air conditioner
using 3-type A screws per guide. start with first screw
at middle of guide. (See Figure 25)
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Side Guide
Figure 25
6. Fasten upper guide on the top of the air conditioner
using 3-type A screws. (See Figure 25)
7. Measure height of window opening from top of
bracket assembly as shown Fig. 26.
Subtract 20-3/4 inches. Mark this measurement on
curtain and cut the curtain. (See Figure 26)
Figure 26
—14—
8. Slide curtain into curtain frame. Slide curtain frame
assembly into side guides of the air conditioner
cabinet. Make sure curtain is firmly enclosed on all
sides by the frame. (See Figure 27)
Curtain Frame
Figure 27
Curtain
9. Cut side guide seal into 2 equal lengths. Remove
protective backing and apply it to the rear side of
cabinet side guides, starting just below curtain frame
assembly. Pinch off excess length so seal is even with
the bottom of side guide. (See Figure 28)
10. Place air conditioner in window opening. It should sit
on bracket assembly so that curtain frame and
cabinet side guides are against top and side window
jambs. Mate front of bracket with base guide
attached to the bottom of base pan.
Apply weather seal
to side guides
just below edge of
Curtain Frame.
11. Drill 1/8 inch holes in window track through the
existing holes on base guide. Screw 4-type C screws
through the holes. (See Figure 29)
Figure 28
12. If this is a casement window installation, proceed to
casement window installation. If not, slide inner
window sash firmly against side of the cabinet.
13. Drill 1/8 inch hole in window jamb to align with the
existing holes in the curtain frame. Attach curtain
frame to window frame with 2-type B screws. (See
Figure 29)
Base pan
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Bracket
Base Guide
NOTE: Check all seals and plug any remaining air gaps
with a suitable weatherproof caulk.
14. If this is a casement window installation, proceed to
casement window installation. If not, stuff the foam
seal strip between the vertical sash and the window
glass. (See Figure 30)
15. Attach the window locking bracket with a type B
screw. (See Figure 30)
Type B screw
Type C screw
Window Track
Figure 29
Foam seal strip
3.7 CASEMENT WINDOW
INSTALLATION
• Installation procedure is the same as that described in
steps 1 through 11 and step 13 of the horizontal sliding
window installation.
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• If the window opening is wider than 15-3/4 inches you
will need to install a filler panel. Make this panel from
3/4 inch thick wood and run it the full length of the
window. Attach it securely to the window frame and
paint it to protect it from the weather.
Window
locking
bracket
• Since styles and sizes of casement windows vary
widely, it is advisable to have the air conditioner
installed by someone skilled in this type of installation.
Figure 30
—15—
4. TROUBLESHOOTING GUIDE
4.1 OUTSIDE DIMENSIONS
Unit: mm(inchs)
3
1
607(23 / )
368(14 / )
5
2
4.2 PIPING SYSTEM
CONDENSER COIL
FAN
CAPILLARY TUBE
COMPRESSOR
MOTOR
TURBO FAN
EVAPORATOR COIL
Following is a brief description of the important components and their functions in the refrigeration system.
Refer to Fig. 31 to follow the refrigeration cycle and the flow of the refrigerant in the cooling cycle.
ROOM AIR CONITIONER
CYCLE OF REFRIGERATION
EVAPORATOR COILS
CONDENSER COILS
VAPOR INLET
SUCTION LINE
COOL LOW PRESSURE VAPOR
HOT
DISCHARGED
AIR
COMPLETE LIQUID
BOIL OFF POINT
COOLED
AIR
ROOM AIR HEAT LOAD
OUTSIDE COOLING
AIR FOR REFRIGERANT
PASS THROUGH
MOTOR
COMPRESSOR
OIL
LIQUID
PRESSURE
DROP
LIQUID OUTLET
HIGH PRESSURE VAPOR
(LIQUID REFRIGERANT)
LIQUID REFRIGERANT
LOW PRESSURE VAPOR
CAPILLARY TUBE
Figure 31
—16—
4.3 TROUBLESHOOTING GUIDE
In general, possible trouble is classified in two kinds.
The one is called Starting Failure which is caused from an electrical defect, and the other is ineffective Air
Conditioning caused by a defect in the refrigeration circuit and improper application.
Unit runs but poor cooling.
Ineffective Cooling
Check cold air circulation
for smooth flow.
Check outdoor coil
(heat exchanger) & the fan
operation.
Check heat load
increase.
Clean condenser.
Dirty indoor coil
(Heat exchanger)
Check gas leakage.
Repair gas leak.
Not on separate circuit.
Malfunction of fan
Clogged of air filter.
Check inside gas
pressure.
Replace of unit if the
unit is beyond repair.
Obstruction at air outlet
Correct above problem
Adjusting of refrigerant
charge.
Malfunction of compressor.
Check clogging in refrigera-
tion system.
Replacement of
compressor.
Satisfactory operation with
temperature difference of
inlet & outlet air ;
Repair clogging in refrigera-
tion system.
44~50°F(7~10°C)
—17—
Fails to Start
Check of power source.
Check circuit breaker
and fuse.
Check of control switch
setting.
Gas leakage of feeler bulb
of thermostat
Check of control switch.
Compressor only fails to
start.
Fan only fails to start.
Improper wiring.
Drop of power voltage.
Improper thermostat setting.
Defect of fan motor
capacitor.
Defect of compressor
capacitor.
Loose terminal connection.
Improper wiring.
Irregular motor resistance
(
).
Irregular motor insulation
).
Capacitor check.
Replacement
(
Replacement of fan motor.
Irregular motor resistance (
Irregular motor insulation (
)
Tests normal but fails to start.
)
Replacement of compressor
(locking of rotor, metal).
Replacement of compressor
(Motor damaged)
—18—
ROOM AIR CONDITIONER VOLTAGE LIMITS
NAME PLATE RATING
MINIMUM
MAXIMUM
115V ±10%
103.5V
126.5V
COMPLAINT
CAUSE
REMEDY
Fan motor will not run.
No power
Check voltage at outlet. Correct if none.
Power supply cord
Check voltage to rotary switch. If none, check power
supply cord. Replace cord if circuit is open.
Rotary switch
Check switch continuity. Refer to wiring diagram for
terminal identification. Replace switch if defective.
Wire disconnected or
connection loose
Connect wire. Refer to wiring diagram for terminal
identification. Repair or replace loose terminal.
Capacitor (Discharge
capacitor before testing.)
Test capacitor.
Replace if not within ±10% of manufacturer's rating.
Replace if shorted, open, or damaged.
Will not rotate
Fan blade hitting shroud or blower wheel hitting
scroll. Realign assembly.
Units using slinger ring for condenser fan must have
1/4 to 5/16 inch clearance to the base. If it hits the
base, shim up the bottom of the fan motor with
mounting screw(s).
Check fan motor bearings; if motor shaft will not
rotate, replace the motor.
Revolves on overload.
Check voltage. If not within limits, call an electrician.
Fan motor runs
intermittently
Test capacitor.
Check bearings. Does the fan blade rotate freely?
If not, replace fan motor.
Pay attention to any change from high speed to
low speed. If the speed does not change, replace the
motor.
Fan
If cracked, out of balance, or partially missing,
replace it.
Fan motor noise.
Blower
If cracked, out of balance, or partially missing,
replace it.
Loose clamper
Worn bearings
Tighten it.
If knocking sounds continue when running or loose,
replace the motor. If the motor hums or noise
appears to be internal while running, replace motor.
Check voltage.
If not within limits, call an electrician.
Compressor will not run,
but fan motor runs.
Voltage
Wiring
Check the wire connections, if loose, repair or
replace the terminal. If wires are off, refer to wiring
diagram for identification, and replace. Check wire
locations. If not per wiring diagram, correct.
Check for continuity, refer to the wiring diagram for
terminal identification. Replace the switch if circuit is
open.
Rotary
—19—
COMPLAINT
CAUSE
Thermostat
REMEDY
Compressor will not run,
but fan motor runs.
Check the position of knob If not at the coldest
setting, advance the knob to this setting and restart
unit.
Check continuity of the thermostat. Replace
thermostat if circuit is open.
Capacitor (Discharge
Check the capacitor.
capacitor before servicing.) Replace if not within ±10% of manufacturers rating.
Replace if shorted, open, or damaged.
Compressor
Check the compressor for open circuit or ground. If
open or grounded, replace the compressor.
Overload
Check the compressor overload, if externally
mounted. Replace if open. (If the compressor
temperature is high, remove the overload, cool it,
and retest.)
Compressor cycles on
overload.
Voltage
Check the voltage.
If not within limits, call an electrician.
Overload
Check overload, if externally mounted.
Replace if open. (If the compressor temperature is
high, remove the overload, cool, and retest.)
Fan motor
If not running, determine the cause. Replace if
required.
Compressor cycles on
overload.
Condenser air flow
restriction
Remove the cabinet. inspect the interior surface of
the condenser; if restricted, clean carefully with a
vacuum cleaner (do not damage fins) or brush.
Clean the interior base before reassembling.
Condenser fins (damaged) If condenser fins are closed over a large area on the
coil surface, head pressures will increase, causing
the compressor to overload. Straighten the fins or
replace the coil.
Capacitor
Test capacitor.
Compressor cycles on
overload.
Wiring
Check the terminals. If loose, repair or replace.
Check the system for a restriction.
If restricted, clean or replace.
Close if open.
Refrigerating system
Air filter
Insufficient cooling or
heating
Exhaust damper door
Unit undersized
Determine if the unit is properly sized for the area to
be cooled.
Excessive noise
Blower or fan
Copper tubing
Check the set screw or clamp. If loose or missing,
correct. If the blower or fan is hitting air guide,
rearrange the air handling parts.
Remove the cabinet carefully and rearrange tubing
not to contact cabinet, compressor, shroud, and
barrier.
—20—
5. SCHEMATIC DIAGRAM
5.1 CIRCUIT DIAGRAM
I MODEL : SV10A10 / SV12A10
S: Service Parts
N: Non Service Parts
PART NO.
RE-
LOCATION
Q'TY
PER SET
DESCRIPTION
NO.
MARKS
SV10A10
SV12A10
1
2
3
4
5
6
POWER CORD
ROTARY SWITCH
FAN MOTOR
6411A20011N
6411A20011P
1
1
1
1
1
1
S
S
S
S
S
S
2H00598E
4681A20069C
CAPACITOR
6120AR2194P
2520UKAC2GA
0CZZA20001N
2520UKGC2DA
THERMOSTAT
COMPRESSOR
2H01109Q
—21—
5.2 CIRCUIT DIAGRAM
I MODEL : SV08A10
S: Service Parts
N: Non Service Parts
PART NO.
SV08A10
RE-
LOCATION
Q'TY
PER SET
DESCRIPTION
NO.
MARKS
1
2
3
4
5
6
POWER CORD
ROTARY SWITCH
FAN MOTOR
6411A20011L
2H00598E
1
1
1
1
1
1
S
S
S
S
S
S
4681A20069A
6120AR2359H
2H01109M
CAPACITOR
THERMOSTAT
COMPRESSOR
2520UAGC2AA
—22—
6. EXPLODED VIEW
130910
148000
554030
352390
359011
349001
249950
346811
349600
149980
269310 266003
354210
W0CZZ
T
e
m
p
e
r
a
tu
r
e
M
F
e
n
d
W
a
a
O
ff
r
m
e
r
C
o
o
H
C
le
ig
o
r
h
l
o
L
F
o
a
w
n
L
o
w
C
o
M
C
o
e
d
l
l
o
o
M
o
d
e
130410
264110
352380
149410
135312
359012
352115
349480
152312
147582-1
552111
145200
147582-2
567502
554160
147581
352113
35211A
135301
550140
135303
—23—
7. REPLACEMENT PARTS LIST
I MODEL : SV08A10, SV10A10, SV12A10
P/No
LOCATION
DESCRIPTION
REMARK
No.
SV08A10
SV10A10
SV12A10
130410 BASE ASSY, SINGLE
130910 CABINET ASSY, SINGLE
135303 GRILLE INLET
3041A20033J
3041A20033N
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
3091A20014A
3530A20056A
3531A20123A
4758A20032A
135312 GRILLE ASSY, FRONT
147581 VANE, HORIZONTAL
147582 VANE, VERTICAL
148000 BRACE
4758A20017A / 4758A20017B
4800A20001A
149410 KNOB ASSY
4941A30017A
149980 SHROUD ASSY
4999A20002A
152312 FILTER ASSY
5231A20012A
249950 CONTROL BOX ASSY
264110 POWER CORD ASSY
266003 SWITCH, ROTARY
269310 THERMOSTAT ASSEM
346811 MOTOR ASSY, SINGLE
349001 DAMPER
4995A20227Q
6411A20011L
4995A20227R
6411A20011N
2H00598E
4995A20227S
6411A20011P
2H01109M
2H01109Q
4681A20069C
4900A20006A
4681A20069A
349480 ORIFICE
4948A20012A
4960A20034A
349600 MOUNT, MOTOR
352113 TUBE ASSY, DISCHARGE SINGLE
352115 TUBE ASSEMBLY, EVAPORATOR
35211A TUBE ASSY, SUCTION
352380 AIR GUIDE-LOWER ASSY
352390 AIR GUIDE ASSY-UPPER
354210 EVAPORATOR ASSY
359011 FAN ASSY AXIAL
359012 FAN ASSY, TURBO
550140 ISOLATOR, COMP
552111 TUBE ASSY, CAPILLARY
554030 CONDENSER ASSY
554160 COMPRESSOR
5211A20558A
5211A20559A
5211A20555A
5211A20558C
5211A20575B
5211A20579B
5239A20008A
5239A20007A
5421A20115A
5900A20026A
5900A20019A
5211A20575C
5211A20579C
5421A20115B
5421A20115D
5040AR4195A
5211A20557A
5403A20082B
2520UAGC2AA
6750U-L048A
6120AR2359H
4830AR4335A
5211A20557H
5211A20557J
5403A20082B
2520UKAC2GA
6750U-L031A
6120AR2194P
2520UKGC2DA
6750U-L029A
0CZZA20001N
567502 O.L.P
W0CZZ CAPACITOR, DRAWING
—24—
MEMO
—25—
MEMO
—26—
Use Factory Certified Parts...
FRIEDRICH AIR CONDITIONING CO.
Post Office Box 1540 • 4200 N. Pan Am Expressway • San Antonio, Texas 78295-1540
• (210) 357-4400 • FAX (210) 357-4480
P/NO.: 3828A20190G
Printed in the U.S.A
SV08 / SV10 / SV12 (01/03)
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