Amana AAC081SRA Service Manual

Amana Technical Information—Room Air Conditioner
December 2002 16022063
(Replaces RT4110055 Rev. 0)
1
AAC081SRA PAAC081SRA0
• Due to a possibility of personal injury or property damage, always contact an authorized technician for servicing or
repair of this air conditioner.
• Refer to Service Manual 16022061 for installation, operation, disassembly, testing, and troubleshooting
information.
• Refer to Parts Reference material for part number information.
CAUTION
!
All safety information must be followed as provided in Service Manual 16022061.
!WARNING
To avoid risk of electrical shock that can cause death or severe injury, disconnect unit from power and discharge
capacitor through a 10,000-ohm resistor before servicing, unless tests require power. Wires removed during
disassembly must be replaced on correct terminals to ensure proper grounding and polarization.
Model AAC081SRA
Electrical requirements 115V VAC 60Hz
Refrigerant/amount HCFC22/25.8 ounces
Compressor
Voltage low/high (nominal)
BTUH
98/132 VAC (115 VAC)
8,390 BTUH
Watts 790 watts
Current
Lock rotor
Full load
42 amps
7.1amps
Overload protector External
Fan motor
Electrical requirements
RPM
Low speed
Med speed
High speed
Watts at high speed
Current at high speed
115 VAC 60Hz
700 RPM
800 RPM
1000 RPM
60 watts
1.4 amps
Compressor Capacitor
Capacitance
Voltage rating (nominal)
40 Mfd ±10%
250 VAC
Fan motor Capacitor
Capacitance
Voltage rating (nominal)
5 Mfd ±10%
450 VAC
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Component Specifications
16022063 December 2002
(Replaces RT4110055 Rev. 0)
2
!WARNING
To avoid risk of electrical shock that can cause death or severe injury, disconnect unit from power and
discharge capacitor through a 10,000-ohm resistor before servicing, unless tests require power. Wires removed
during disassembly must be replaced on correct terminals to ensure proper grounding and polarization.
Illustration Component Test Procedure Results
Compressor Check resistance of compressor windings:
Attach ohmmeter between winding C and S:
Attach ohmmeter between winding C and R:
Check compressor for grounds:
Attach one ohmmeter lead to compressor
case. Attach second ohmmeter lead to C,
then S, then R terminals on compressor:
NOTE: See Testing Procedures section of Service Manual
for additional compressor information.
Ohmmeter should indicate resistance
between windings.
Ohmmeter should indicate resistance
between windings.
Ohmmeter should indicate infinity on each
terminal.
Compressor
overload
Continuity
Ensure temperature of overload is at room temp.
Check continuity across leads: Overload should have continuity.
Compressor
Capacitor
Resistance (highest scale), with power removed.
Discharge capacitor and disconnect all attached wires.
Attach Analog ohmmeter leads between C terminal
and H terminal on capacitor:
Reverse leads on C and H terminals:
Check capacitor for ground.
Attach one ohmmeter lead to capacitor
case. Attach second ohmmeter lead to H,
then C terminals on capacitor:
Indicator swings to zero and slowly returns
toward infinity.
Indicator swings to zero and slowly returns
toward infinity.
Infinity on ohmmeter indicates capacitor
not grounded.
Fan motor Check for resistance of fan motor windings:
Attach one ohmmeter lead to common fan
motor lead. Attach second lead to remaining
fan motor leads, one at a time:
Check fan motor for grounds:
Attach one ohmmeter lead to fan motor case.
Attach second ohmmeter lead to each fan
motor lead, one at a time:
Ohmmeter should indicate resistance
between windings.
Ohmmeter should indicate infinity on each
lead.
Fan Motor Capacitor Resistance (highest scale), with power removed.
Discharge capacitor and disconnect all attached wires.
Attach Analog ohmmeter leads between C terminal
and F terminal on capacitor:
Reverse leads on C and F terminals:
Check capacitor for ground.
Attach one ohmmeter lead to capacitor
case. Attach second ohmmeter lead to F,
then C terminals on capacitor:
Indicator swings to zero and slowly returns
toward infinity.
Indicator swings to zero and slowly returns
toward infinity.
Infinity on ohmmeter indicates capacitor
not grounded.
Selector switch Position Function
1Off
2 Low Fan
3 Low Cool
4 Med Cool
5 High Cool
6HighFan
Contacts Made
None
1,2
1,2,8
1,4,8
1,6,8
1,6
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Component Specifications
December 2002 16022063
(Replaces RT4110055 Rev. 0)
3
!WARNING
To avoid risk of electrical shock that can cause death or severe injury, disconnect unit from power and
discharge capacitor through a 10,000-ohm resistor before servicing, unless tests require power. Wires removed
during disassembly must be replaced on correct terminals to ensure proper grounding and polarization.
Illustration Component Test Procedure Results
Thermostat Attach ohmmeter leads between 2 and 1:
Attach ohmmeter leads between 2 and 3:
Turn control to warmest setting. Check for
continuity. Contacts close when control
warms.
Turn control to coldest setting. Check for
continuity. Contacts close when control
cools.
If continuity is not indicated, replace
affected control.
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Wiring Diagrams and Schematics
16022063 December 2002
(Replaces RT4110055 Rev. 0)
4
!WARNING
To avoid risk of electrical shock that can cause death or severe injury, disconnect unit from power and
discharge capacitor through a 10,000-ohm resistor before servicing, unless tests require power. Wires removed
during disassembly must be replaced on correct terminals to ensure proper grounding and polarization.
AAC081SRA PAAC081SRA0
WIRING DIAGRAM
OPTIONAL
LOW FAN SPEED
HIGH COOL
MID COOL
LOW COOL
0010540372
OFF
POWERSUPPLY
6
48
2
1
HIGH FAN SPEED
SWITCH
COMPRESSOR
CAPACITOR
B
R
R: RED
BR: BROWN
BL: BLUE
G: GREEN
Y: YELLOW
M
RC
RBL
W: WHITE
B: BLACK
H
BL
R
C
GB
L
S
PROTECTOR
THERMOSTAT
FAN MOTOR
L
M
W
M
Y
BR
CAPACITOR
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