Sharp AF-R100CX User manual

1
AF-R100CX
AF-R120CX
AIR CONDITIONER
S3203AFR12CX/
SERVICE MANUAL
Page
SPECIFICATIONS .................................................................................................................................................2
WIRING DIAGRAM................................................................................................................................................3
EXTERNAL DIMENSIONS ....................................................................................................................................3
OPERATION INSTRUCTIONS............................................................................................................................. 4
INSTALLATION INSTRUCTIONS ........................................................................................................................ 6
DISASSEMBLING PROCEDURE......................................................................................................................... 8
HOW TO REPAIR REFRIGERATION ................................................................................................................ 12
ELECTRICAL COMPONENT TEST ....................................................................................................................14
MICROCOMPUTER CONTROL SYSTEM ..........................................................................................................15
TROUBLESHOOTING GUIDE ............................................................................................................................19
COOLING LOAD ESTIMATE FORM ...................................................................................................................24
RUNNING CONDITION .......................................................................................................................................26
PACKING AND ACCESSORIES .........................................................................................................................27
REPLACEMENT PARTS LIST ............................................................................................................................28
TABLE OF CONTENTS
AF-R100CX
AF-R120CX
MODELS
SHARP CORPORATION This document has been published to be used for after
sales service only.
The contents are subject to change without notice.
In the interest of user-safety the air conditioner should be restored to
itsoriginalconditionandonlypartsidenticaltothosespecifiedshould
be used.

2
AF-R100CX
AF-R120CX
Models AF-R100CX AF-R120CX
Cooling capacity BTU/h 10000 12000
Moisture removal Pints/h 2.7 3.3
ELECTRICAL DATA
Phase Single
Rated frequency Hz 60
Rated voltage Volts 115
Rated current Amps 9.0 11.5
Rated input Watts 1000 1200
Power factor % 97 91
EER BTU/Wh 10.0 10.0
COMPRESSOR
Type (Hermetically sealed rotary type)
Model, Remarks 44R251AC-AJS, 840 W 44B124HX1EF, 1000W
REFRIGERANT SYSTEM
Evaporator Slit fin, Grooved tube, Ø 9.53 mm Hair pin
Condenser Louver fin, Grooved tube, 7mm Hair pin
Control O.D. x I.D. x Length x Q'ty(mm) Capillary tube 2.7 x 1.4 x 400 x 1 Capillary tube 2.7 x 1.2 x 800 x 2
Refrigerant volume R-22(OZ) 18.3(Factory charged) 19.4(Factory charged)
NET DIMENSIONS
Width Height Depth inches(mm) 22-1/16(560) x 14-3/4(375) x 24-5/16(617)
Net Weight lbs 83 85
GROSS DIMENSIONS
Width Height Depth inches(mm) 25-25/32(655) x 18-29/32(480) x 27-7/8(708)
Gross Weight lbs 94 96
FAN SYSTEM
Indoor side(Evaporator) Centrifugal fan
Outdoor side(Condenser) Propeller fan
Air flow rate(indoor side) CFM (High/Med/Low) 304 / 254 / 223 (High/Med/Low) 318 / 254 / 219
OTHERS
Safety devices Compressor: Overload relay
Fan motor: Internal thermal protector
Air filter Polypropylene net
Power cord length ft 4.3
Power plug type 125V, 15A
ELECTRICAL PARTS
Running capacitor 250V-60µF 370V-50µF
Fan capacitor 250V-6µF x 2 250V-6µF x 2
Thermistor 15k at 78˚F
Fan motor ARS030ZUEA/SHP(MLA895) ARS030ZUEA/SHP(MLA895)
Overload relay MRA4789-9053 MRA98693-12007
SPECIFICATIONS

3
AF-R100CX
AF-R120CX
Figure W-1
WIRING DIAGRAM
EXTERNAL DIMENSIONS
24-5/16"
5-3/16"
14-3/4"
19/32" 1-3/8"
16-23/32"
22-1/16"
38-19/32"
27-5/32"
OVERLOAD
PROTECTOR
A.C
M.C
CONNECTOR
HM
L
FAN MOTOR
CAPACITOR
250V 6µF x 2
FAN MOTOR
RUNNING
CAPACITOR
RUNNING CAPACITOR
AF-R100CX AF-R120CX
250V 60µF 370V 50µF
THERMAL
PROTECTOR
BL
BL
BL
BLBK
BK
BK
BK
GY RE OR
WH
COMPRESSOR
MOTOR
BK
BL
RE
WH
GR
GY
OR
: BLACK
: BLUE
: RED
: WHITE
: GREEN
: GRAY
: ORANGE
POWER SUPPLY CORD
115V 60Hz
3A 125V
IN
GR MRY CONTROL
BOAD UNIT
NR
C1
CN1
CN2
CN3
TR
OUT
RIBBED
NON RIBBED
BK
BK
C
R
RE
WH
GY
BCN1
BCN2
BCN3
WH
OR
RE
GY
S
FU1
123654
WIRE COLOR
YELLOW TH1
RY3
RY2
RY1
CNR3
CNR2
CNR1
THERMISTOR
(ROOM TEMP)
8
7
1
3
5
DISPLAY
BOARD
UNIT

4
AF-R100CX
AF-R120CX
F
hr
POWER
ON/OFF
POWER
ON/OFF
COOLING OPERATION
1. Touch POWER ON/OFF pad.
• The unit is preset at 74°F and HIGH
COOL. This will show in the display
when the power is first turned on.
2. To turn off the unit, touch POWER ON/
OFF pad again.
• POWER indicator and SELECTOR
indicator (HIGH COOL) will light.
• POWER indicator and SELECTOR
indicator will go off.
HOW TO OPERATE
OPERATION INSTRUCTIONS
2
1
SELECTOR indicator
Receiver window for remote control
signal
Display
SELECTOR pad
TIMER ON/OFF pad
TIMER indicator
UNIT
CONTROL PANEL
TEMPERATURE setting pad
----Lower temp.
----Raise temp.
ENERGY SAVER pad
ENERGY SAVER indicator
POWER ON/OFF pad
POWER indicator
6
5
4
3
2
1
7
11
10
9
8
Front panel
Air inlet (Indoor side)
Louvers
Air outlet (Indoor side)
Exhaust lever
Control panel
Cabinet
Air outlet (Outdoor side)
Air inlet (Outdoor side)
Filter (Pull the filter handle to the right to remove.)
Filter handle
Power cord
3
4
5
6
7
8
9
10
11
12
Procedure Pad Display / Indicator
HIGH COOL
MED COOL
LOW COOL
FAN ONLY
SELECTOR
ENERGY
SAVER
POWER
ON/OFF
TEMP
F
hr
TIMER
ON/OFF
1 2 3
4 5 6 7 8 9 10 11
8
12
1
2
3
456
7
9
10
11

5
AF-R100CX
AF-R120CX
F
hr
TEMP
---Lower temp.
---Raise temp.
TO CHANGE TEMPERATURE SETTING
• Display will change as you touch the
pad.
The latest temperature setting will be memorized and will appear on the display the next time the unit is
turned on.
NOTE:
In cases of power outages or when the unit is disconnected; when the power is restored or the unit is
plugged in, the unit and display will return to the preset conditions of 74°F and HIGH COOL. The unit will
not automatically turn back on. The user must touch POWER ON/OFF to resume operation.
TO CHANGE FAN SPEED
During cooling operation
Touch the TEMPERATURE setting pad to
adjust the temperature setting.
•It can be set within the range of
64°F to 86°F.
Procedure Pad Display / Indicator
SELECTOR
•SELECTOR indicator will
lightinorder as youtouch.
During operation
Touch SELECTOR pad and select
the desired fan speed.
HIGH COOL
MED COOL
MED COOL
LOW COOL
LOW COOL
FAN ONLY
Procedure Pad Display / Indicator
LOW COOL
MED COOL
HIGH COOL
NOTES ON FAN SPEED
Fan and cooling at maximum performance.
Unit is preset to HIGH COOL when first turned on after unit is plugged in.
Fan operates at medium speed; cooling power at medium.
Cooling for sleeping comfort with low fan speed.
FAN ONLY OPERATION
This setting can be used to circulate air whenever cooling is not desired.
The fan will operate at medium speed.
SELECTOR
•SELECTOR indicator FAN ONLY will
light, and the temperature display will
gooff.After5seconds,thecompressor
will stop and the unit will operate in
FAN ONLY mode.
During operation
Touch SELECTOR pad and select FAN
ONLY.
Procedure Pad Display / Indicator
When the unit is turned off, the last fan speed will be stored in memory.
The next time the air conditioner is used, the memorized fan speed will start automatically.

6
AF-R100CX
AF-R120CX
ITEMS PACKED WITH THIS UNIT
No.
6
8
1
2
3
45
7
6
8
9
10
ENERGY
SAVER
ENERGY
SAVER
ENERGY SAVER
During normal operation, the thermostat automatically controls cooling and the fan runs continuously. When the
ENERGY SAVER is selected, the thermostat automatically controls cooling and the fan automatically stops when
the compressor is not operating. (Fan will stop 30 seconds after the compressor stops.)
NOTE: ENERGY SAVER cannot be set during FAN ONLY mode operation.
TO CHANGE AIR FLOW DIRECTION
Adjust the louvers to change the direction of air flow for uniform and efficient cooling of the room.
EXHAUST
If air in your room is stale, set the EXHAUST lever
totheOPENposition. Thiswillexhaust staleairto
the outside. The EXHAUST lever should normally
be kept in the CLOSED position during cooling for
maximum efficiency.
During cooling operation
1. Touch ENERGY SAVER pad.
2. To cancel, touch ENERGY SAVER pad
again.
Procedure Pad Display / Indicator
•ENERGY SAVER indicator will light.
•ENERGY SAVER indicator will go off.
7
6
5
4
3
2
1
Accessories Q'ty
Right closure assembly 1
Left closure assembly 1
Window sash foam seal 1
Window sash foam seal
(adhesive type) 1
Bottom gasket 1
Screws(L=1", 25.4mm) 8
Screws(L= 13/ 32", 10mm) 6
Remote control 1
Battery 2
Remote control hook 1
8
9
10
2
INSTALLATION INSTRUCTIONS
CLOSED OPEN
EXHAUST Lever
Vertical louvers
Adjusts LEFT/RIGHT air flow Horizontal louvers
Adjusts UP/DOWN air flow

7
AF-R100CX
AF-R120CX
SUGGESTED TOOLS
1. Screw driver (medium size Phillips)
2. Tape measure or ruler
3. Knife or scissors
INSTALLATION
These models can also be installed through the wall with
the optional through the wall mounting kit, model AZ-
80WK. To order this kit either contact your dealer or call
1-800-BE-SHARP.
Thewall opening dimensionsfor throughthe wallinstallation
are: 25" (635mm) (W) x 17 -1/ 4 " (438mm) to 17-3/ 4"
(451mm) (H) x 4" (102mm) minimum (D).
Complete instructions are included with the wall mounting
kit.
WARNING: Make sure the unit is turned off and
unplugged before working.
1-1. Cut the window sash foam seal (adhesive type) to the
proper length and attach it to the underside of the
window sash.
1-2. Attach the bottom gasket to the outer side of the
window sill.
2-1. Unscrewthe 2 screws at thecorners ofthe front panel.
Keep them as they will be used later.
2-2. Removethefront panel bypullingthefrontpanelat the
lower corners towards you about an inch.
Next lift it up and pull it towards you.
CAUTION: Take care not to damage the exhaust
lever when removing the front panel.
3-1. Unscrew the 6 stopper screws of the cabinet. Keep
the 4 screws from the top and front , as they will be
used later.
3-2. Slide the chassis out from the cabinet by pulling on the
hand hold located at the bottom center of the chassis.
bottom gasket
window sash foam seal
(adhesive type)
Front panel Exhaust Lever
Front
panel
Horizontal
Louver
Closure assembly
Cabinet
sill incline backwards about 1cm (3/8")
CAUTION Do not remove any material (ex.
styrofoam, etc.) from inside the unit.
4. Insert the right closure assembly and the left closure
assembly into the top angle and the bottom channels.
Secure the right and left closure to the cabinet with 6
of the provided screws. (L= 13/ 32 ", 10 mm)
5. Open the window sash and place the cabinet on the
sill. Close the window sash securely behind the top
angle.If there is space between the bottom channel
and the sill, fill the gap with a thin board or other hard
filler.
WARNING:
At this step, make sure the cabinet is inclined
approximately 1 cm (3/8”) to the back. If the cabinet is
not properly inclined, the water collected in the bottom
tray during operation will not drain properly and may
flowintothe roomwheretheairconditionerisinstalled.

8
AF-R100CX
AF-R120CX
DISASSEMBLING PROCEDURE
CAUTION: DISCONNECT THE ROOM AIR CONDITIONER FROM THE POWER SUPPLY BEFORE ANY SERVICE
1. Unscrewthetwoscrewsholdingthefrontpaneloneach
side.
6. Insert the closure assemblies on both sides into the
rails of the jamb.
7-1. Secure the cabinet to the window stool with 3 screws
(L=1",25.4mm),workingfromtheinsideofthecabinet.
7-2. Secure the top angle and the closure assemblies to
the window sash with 3 screws (L=1", 25.4 mm).
7-3. Secure the closure assemblies to the sill with 2 screws
(L=1", 25.4 mm).
8-1. Slide the chassis back into the cabinet.
8-2. Replace the 4 screws removed in step 3 to the top
and side of the cabinet .
Closure assembly
(Left)
Closure assembly
(Left)
1/2 inch
(13mm)
Jamb
(Left)
Sill
Stool
Top angle
9-1 Replacethefrontpanel. Slip theexhaustleverthrough
the opening between the horizontal louver and the
front panel then, hook the cabinet top.
CAUTION:Takecarenot to damage the exhaust leverwith
the front panel.
9-2. Screw the front cabinet on at the bottom corners with
2 screws removed in step 2.
10.Cut the window sash foam seal to the proper length
and seal the opening between the top of the inside
window sash and the outside window sash.
Horizontal
Louver
Front
Panel Exhaust Lever
2. Remove the front panel by pulling it at the lower corner
toward you about 1 inch and next lift up and pull it
toward you.
Window sash foam seal

9
AF-R100CX
AF-R120CX
3. Unscrew the four screws holding the cabinet.
Two screws are on top side.
Two screws are on each side.
4. Slide the chassis away from the cabinet by pulling on
each corner of the base pan.
5. Unscrew the four screws holding the control unit.
Two screws are on front side.
Two screws are on right side.
6. Unscrew the one screw holding the power supply cord.
7. Unscrew the one screw holding the wire holder.
Pull out thermistor holder.
8. Unscrew the one screw holding earth wire .
9. Cut the fixing band holding the wires.
10.Remove the control unit.
11.Unscrew the four screws holding control box cover.
Two are on the right side, one is on the left side, one is
on the back side.
CAUTION: DISCHARGE THEFAN MOTORCAPACITOR
AND RUNNING CAPACITOR BEFORE
TOUCHING THOSE CAPACITORS OR
OTHER COMPONENTS OR WIRING.
12.Detacheachterminalsoffanmotorsbyusinglong-nose
pliers.

10
AF-R100CX
AF-R120CX
14.Unscrew the five screws holding the connecting stay.
15.Unscrew the two screws holding the shroud cover.
16.Unscrew the six screws holding the condenser and
condenser shroud.
Two screws are on the back side.
Four screws are on the each side.
Unscrew the two screws holding the condenser cover .
13.Remove the putty and unfasten the one nut at the top of
compressor holding the terminal cover.
Then remove the wiring connector of the compressor
cord.
17.Remove the condenser by liftting up about 1 inch and
pull it toward you and move to right.
18.Unfasten the one nut holding propeller fan by rotating it
clockwise. And remove the propeller fan.
19.Unscrew the three screws holding condenser shroud.
Note: Seal three female screws with siliconsealer
before re-installing.
20.Unscrew the four screws holding the evaporator.
Two are on left side.
Two are on right side.
21.Remove the evaporator.