Amana GSH13018 Operating instructions

RS6100004Rev.2
May2007
Service
Instructions
Split System Air Conditioners and
Split System Heat Pumps
with R-22 Refrigerant
Blowers, Coils, & Accessories
This manual is to be used by qualified, professionally trained HVAC technicians only.
Goodman does not assume any responsibility for property damage or personal injury due
to improper service procedures or services performed by an unqualified person.

IMPORTANT INFORMATION
Prideandworkmanshipgointoeveryproducttoprovideourcustomerswithqualityproducts. Itispossible,however,
thatduringitslifetimeaproductmayrequireservice. Productsshouldbeservicedonlybyaqualifiedservicetechnician
whoisfamiliarwiththesafetyproceduresrequiredintherepairandwhoisequippedwiththeproper tools,parts,testing
instrumentsandtheappropriateservicemanual. REVIEWALLSERVICEINFORMATIONINTHEAPPROPRIATE
SERVICEMANUALBEFOREBEGINNINGREPAIRS.
IMPORTANT NOTICES FOR CONSUMERS AND SERVICERS
RECOGNIZESAFETYSYMBOLS,WORDSANDLABELS
TABLE OF CONTENTS
2
To locate an authorized servicer, please consult your telephone book or the dealer from whom you purchased this
product. For further assistance, please contact:
WARNING
To prevent the risk of property damage, personal
injury, or death, do not store combustible materials or
use gasoline or other flammable liquids or vapors
in the vicinity of this appliance.
WARNING
Goodmanwill not beresponsible for any injury or property damage arising fromimproper service or service
procedures. If you perform service on your own product, you assume responsibility for any personal injury or property
damage which may result.
WARNING
This unit should not be connected to, or used in conjunction with, any devices that are not design certified for use with
this unit or have not been tested and approved by Goodman. Serious property damage or personal injury, reduced unit
performance and/or hazardous conditions may result from the use of devices that have not been approved or certified by
Goodman.
CONSUMERINFORMATIONLINE
GOODMAN®BRANDPRODUCTS
TOLL FREE 1-877-254-4729 (U.S. only)
email us at: [email protected]
fax us at: [phone]
(Not a technical assistance line for dealers.)
CONSUMERINFORMATIONLINE
AMANA®BRANDPRODUCTS
TOLL FREE 1-877-254-4729 (U.S. only)
email us at: hac.consumer[email protected]
fax us at: (931) 438- 4362
(Not a technical assistance line for dealers.)
Outside the U.S., call 1-931-433-6101. (Not a technical assistance
line for dealers.) Your telephone company will bill you for the call.
Outside the U.S., call 1-713-861-2500. (Not a technical assistance
line for dealers.) Your telephone company will bill you for the call.
IMPORTANTINFORMATION .........................2 - 3
MODELIDENTIFICATION..............................4 - 6
AIRHANDLER/COILIDENTIFICATION .........7 - 8
ACCESSORIES...........................................9 - 13
PRODUCT DESIGN ........................................ 14
SYSTEMOPERATION ..............................15 - 19
TROUBLESHOOTING CHART .........................20
SERVICING TABLE OF CONTENTS ................21
SERVICING ................................................21 - 52
ACCESSORIESWIRINGDIAGRAMS .......53 - 60

3
Thesuccessfuldevelopmentofhermeticallysealedrefrigera-
tioncompressorshas completelysealedthe compressor's
movingpartsandelectricmotor inside acommonhousing,
minimizing refrigerant leaks and the hazards sometimes
associated with moving belts, pulleys or couplings.
Fundamental to the design of hermetic compressors is a
method whereby electrical current is transmitted to the
compressormotorthroughterminalconductorswhichpass
throughthecompressorhousingwall. Theseterminalsare
sealedinadielectricmaterialwhichinsulatesthemfromthe
housing and maintains the pressure tight integrity of the
hermetic compressor. The terminals and their dielectric
embedmentarestronglyconstructed,butarevulnerableto
careless compressor installation or maintenance proce-
dures and equally vulnerable to internal electrical short
circuits caused by excessive system contaminants.
WARNING
System contaminants, improper service procedure
and/or physical abuse affecting hermetic compressor
electrical terminals may cause dangerous system
venting.
WARNING
To avoid possible injury, explosion or death, practice
safe handling of refrigerants.
SAFE REFRIGERANT HANDLING
Whilethese items will not cover every conceivable situation, they should serve as a useful guide.
To avoid possible explosion, use only returnable (not
disposable) service cylinders when removing refrig-
erant from a system.
• Ensure the cylinder is free of damage which could
lead to a leak or explosion.
• Ensure the hydrostatic test date does not exceed
5 years.
• Ensure the pressure rating meets or exceeds 400
lbs.
When in doubt, do not use cylinder.
WARNING
Ineither of theseinstances, an electricalshort between the
terminaland thecompressor housingmay resultin theloss
of integrity between the terminal and its dielectric embed-
ment. This loss may cause the terminals to be expelled,
thereby venting the vaporous and liquid contents of the
compressor housing and system.
Aventingcompressorterminalnormallypresentsnodanger
toanyone,providingtheterminalprotectivecoverisproperly
in place.
If, however, the terminal protective cover is not properly in
place,aventing terminal maydischargea combinationof
(a) hotlubricatingoilandrefrigerant
(b) flammable mixture (if system is contaminated
withair)
inastreamofspraywhichmaybedangeroustoanyoneinthe
vicinity. Death or serious bodily injury could occur.
Under no circumstances is a hermetic compressor to be
electrically energized and/or operated without having the
terminalprotectivecoverproperlyinplace.
SeeServiceSectionS-17forproperservicing.
IMPORTANT INFORMATION
Refrigerants are heavier than air. They can "push out"
the oxygen in your lungs or in any enclosed space.To
avoid possible difficulty in breathing or death:
• Never purge refrigerant into an enclosed room or
space. By law, all refrigerants must be reclaimed.
• If an indoor leak is suspected, thoroughly ventilate
the area before beginning work.
• Liquid refrigerant can be very cold. To avoid possible
frostbite or blindness, avoid contact withrefrigerant
and wear gloves and goggles. If liquid refrigerant
does contact your skin or eyes, seek medical help
immediately.
• Always follow EPA regulations. Never burn refrig-
erant, as poisonous gas will be produced.
WARNING

PRODUCT IDENTIFICATION
4
C PKF 036 2 A
Electrical Supply
Unit Type
E: CommercialAirConditioner
K: AirConditioner
P: HeatPump
ProductCategory
C: Split System
1:208-230V/60Hz/1ph
2:220-240V/50Hz/1ph
3:208/230V/60Hz/3ph
4:308/415V/50Hz/3ph
Revision
NominalCapacity
018: 1.5 tons
024: 2 tons
030: 2.5 tons
036: 3 tons
042: 3.5 tons
048: 4 tons
060: 5 tons
070: 5 tons
090: 7.5 tons
120: 10 tons
G S C 13 036 1 A A
Brand Name
G: Goodman®Brand /
Amana®Brand Distinctions
S: Goodman®Brand
(High Feature Set Models)
A
: Amana®Brand
Product Category
S: Split System
Unit Type
C: Condenser R-22
H: Heat Pump R-22 Nominal Capacity
018: 1.5 Tons
024: 2 Tons
036: 3 Tons
042: 3.5 Tons
Major Revision
A
: Initial Release
Electrical
1: 208/230V, 1 Phase, 60 Hz
2: 220/240V, 1 Phase, 50 Hz
3. 208/230V, 3 Phase, 60 Hz
4. 460V, 3 Phase, 60 Hz
5. 308/415V, 3 Phase, 50 Hz
SEER
10: 10 SEER
13: 13 SEER
14: 14 SEER
Minor Revision
A
: Initial Release
048: 4 Tons
060: 5 Tons
090: 7.5 Tons
120: 10 Tons
16: 16 SEER
18: 18 SEER

PRODUCT IDENTIFICATION
5
C KF 036 2 A
Electrical Supply
Unit Type
E: CommercialAirConditioner
K: AirConditioner
P: HeatPump
ProductCategory
C: Split System
1:208-230V/60Hz/1ph
2:220-240V/50Hz/1ph
3:208/230V/60Hz/3ph
4:308/415V/50Hz/3ph
Revision
NominalCapacity
018: 1.5 tons
024: 2 tons
030: 2.5 tons
036: 3 tons
042: 3.5 tons
048: 4 tons
060: 5 tons
070: 5 tons
090: 7.5 tons
120: 10 tons
C KL 036 2 A
Electrical Supply
Unit Type
E: CommercialAirConditioner
K: AirConditioner
P: HeatPump
ProductCategory
C: Split System
1:208-230V/60Hz/1ph
2:220-240V/50Hz/1ph
3:208/230V/60Hz/3ph
4:308/415V/50Hz/3ph
Revision
NominalCapacity
018: 1.5 tons
024: 2 tons
030: 2.5 tons
036: 3 tons
042: 3.5 tons
048: 4 tons
060: 5 tons
070: 5 tons
090: 7.5 tons
120: 10 tons

PRODUCT IDENTIFICATION
6
C E 120 5 A
Electrical Supply
Unit Type
E: CommercialAirConditioner
K: AirConditioner
P: HeatPump
ProductCategory
C: Split System
1:208-230V/60Hz/1ph
2:220-240V/50Hz/1ph
3:208/230V/60Hz/3ph
4:308/415V/50Hz/3ph
Revision
NominalCapacity
018: 1.5 tons
024: 2 tons
030: 2.5 tons
036: 3 tons
042: 3.5 tons
048: 4 tons
060: 5 tons
070: 5 tons
090: 7.5 tons
120: 10 tons

PRODUCT IDENTIFICATION
7
A
R U F 3642 1
A
A
Product Type
A
: Single Piece Air Handler
Application
C: Ceiling Mount PSC Motor
D: Downflow PSC Motor
E: Multi-Position Variable Speed Motor
R: Multi-Position PSC Motor
W: Wall Mount PSC Motor
Cabinet Finish
U: Unpainted
P: Painted
N: Uncased
Nominal Capacity Range @ 13 SEER
Multi-Position & Downflow Applications
3642: 3 - 3 1/2 tons
1830: 1 1/2 - 3 1/2 tons
1729: 1 1/2 - 2 1/2 Tons 10 SEER (for export systems)
Ceiling Mount & Wall Mount Applications
1805: Nominal Cooling Capacity
Electric Heat kw - 1 1/2 tons Cooling/5 kw Electric Heat
2405: Nominal Cooling Capacity
Electric Heat kw - 2 Tons Cooling/5 kw Electric Heat
3608: Nominal Cooling Capacity
Electric Heat kw - 3 Tons Cooling/8 kw Electric Heat
Major Revision
A
: Initial Release
Electrical
1: 208/230V, 1 Phase, 60 Hz
Expansion Device
F: Flowrater
Minor Revision
A
: Initial Release
THIS NOMENCLATURE IS TO BE USED AFTER JULY 2006
THIS NOMENCLATURE IS TO BE USED TRHOUGH JULY 2006
A W U F 3642 1 6 A A
Electrical Supply
Expansion Device
Application
C: Ceiling Mount PSC Motor
D: Downflow PSC Motor
E: Multi-Position
Variable-Speed Motor
S: Energy-Efficient Motor
R: Multi-Position PSC Motor
W:Wall Mount PSC Motor
Cabinet
Finish
Product Type
A: Air Handler
F: Flowrator
T: TXV (Expansion Valve)
@13 SEER
Dedicated Application
3636: 3 Tons
Multi-Position & Downflow Applications
3642: 3 - 3 1/2 Tons
1830: 1 1/2 - 3 1/2 Tons
@10 SEER
1729: 1 1/2 - 2 1/2 Tons (for export systems)
Ceiling Mount & Wall Mount Applications
(Nominal Cooling Capacity/Electric Heat kW)
1805: 1 1/2 Tons Cooling / 5 kW Electric Heat
2405: 2 Tons Cooling / 5 kW Electric Heat
3608: 3 Tons Cooling / 8 kW Electric Heat
1: 208-240V/60Hz/1ph
AllAirhandlersuse
DIRECTDRIVE
MOTORS.
Power supply is
AC208-230v,
60 hz, 1 phase.
P: Painted
U: Unpainted
N: Uncased
Nominal Capacity Range
Refrigerant Charge
No Digit: R-22 Only
6: R-410A or R-22
Major
Revision*
Minor
Revision*

PRODUCT IDENTIFICATION
8
C
A
P F 1824
A
6
A
Product Type
C: Indoor Coil
Application
A: Upflow/Downflow Coil
H: Horizontal A Coil
S: Horizontal Slab Coil
Cabinet Finish
U: Uncased
P: Painted
C: Unpainted Case
Refrigerant
6: R-22 or R-410A
2: R-22
Nominal Width For Gas Furnace
A: Fits 14" Furnace Cabinet
B: Fits 17 1/2" Furnace Cabinet
C: Fits 21" Furnace Cabinet
D: Fits 24 1/2" Furnace Cabinet
N: Does Not Apply (Horizontal Slab Coils
Expansion Device
F: Flowrator
Revision
A: Initial Release
Nominal Capacity Range
@ 13 SEER
1824: 1 1/2 - 2 tons
3030: 2 1/2 tons
3642: 3 - 3 1/2 tons
MB E 8 00
A
A
1
Design Series
MB: Modular Blower
Motor Types
E: Variable-speed
R: Constant-speed
Air Flow Delivered
08: 800 CFM
12: 1,200 CFM
16: 1,600 CFM
20: 2,000 CFM
Design Series
A
: First Series
Circuit Breaker
A
: No Circuit Breake
r
Factory-installed
Electric Heat
00: No Heat
Voltage/Hz/Phase
1: 208-230/60/1

9
ACCESSORIES
*Installed on indoor coil.
Model Description GSH13018 GSH13024 GSH13030 GSH13036 GSH13042 GSH13048 GSH13060
AFE18-60A All Fuel Kit X X X X XXX
OT18-60A Outdoor Thermostat X X X X XXX
FSK01A* Freeze Protection Kit X X X X XXX
ASC01 Anti Short Cycle Kit X X X X XXX
TX2N2* TXV Kit x --- --- --- --- --- ---
TX3N2* TXV Kit xXX X --- --- ---
TX5N2* TXV Kit --- --- --- --- XXX
OT18-60A Outdoor Lockout Stat X X X X XXX
OT/EHR18-60 Emergency Heat relay kit X X X X XXX
CSR-U-1 Hard Start Kit X X X X --- --- ---
CSR-U-2 Hard Start Kit --- --- --- XXXX
CSR-U-3 Hard Start Kit --- --- --- --- --- XX
Model Description ASH13018 ASH13024 ASH13030 ASH13036 ASH13042 ASH13048 ASH13060
AFE18-60A All Fuel Kit X X X X XXX
OT18-60A Outdoor Thermostat X X X X XXX
FSK01A* Freeze Protection Kit X X X X XXX
ASC01 Anti Short Cycle Kit X X X X XXX
TX2N2* TXV Kit x --- --- --- --- --- ---
TX3N2* TXV Kit xXX X --- --- ---
TX5N2* TXV Kit --- --- --- --- XXX
OT18-60A Outdoor Lockout Stat X X X X XXX
OT/EHR18-60 Emergency Heat relay kit X X X X XXX
CSR-U-1 Hard Start Kit X X X X --- --- ---
CSR-U-2 Hard Start Kit --- --- --- XXXX
CSR-U-3 Hard Start Kit --- --- --- --- --- XX
Model Description ASC13018 ASC13024 ASC13030 ASC13036 ASC13042 ASC13048 ASC13060
OT18-60A Outdoor Thermostat --- --- --- --- --- --- ---
FSK01A* Freeze Protection Kit X X X X XXX
ASC01 Anti Short Cycle Kit X X X X XXX
TX2N2* TXV Kit X--- --- --- --- --- ---
TX3N2* TXV Kit x x x x --- --- ---
TX5N2* TXV Kit --- --- --- --- XXX
CSR-U-1 Hard Start Kit X X X X --- --- ---
CSR-U-2 Hard Start Kit --- --- --- XXXX
CSR-U-3 Hard Start Kit --- --- --- --- --- XX
Model Description GSC13018 GSC13024 GSC13030 GSC13036 GSC13042 GSC13048 GSC13060
OT18-60A Outdoor Thermostat --- --- --- --- --- --- ---
FSK01A* Freeze Protection Kit X X X X XXX
ASC01 Anti Short Cycle Kit X X X X XXX
TX2N2* TXV Kit X--- --- --- --- --- ---
TX3N2* TXV Kit x x x x --- --- ---
TX5N2* TXV Kit --- --- --- --- XXX
CSR-U-1 Hard Start Kit X X X X --- --- ---
CSR-U-2 Hard Start Kit --- --- --- XXXX
CSR-U-3 Hard Start Kit --- --- --- --- --- XX
Model Description GSC100903 GSC100904 GSC101203 GSC101204
FSK01A* Freeze Protection Kit xxxx
ASC01 Anti Short Cycle Kit xxxx
OT/EHR18-60 Emergency Heat relay kit --- --- --- ---
Model Description GSH100903 GSH100904 GSH101203 GSH101204
FSK01A* Freeze Protection Kit xxxx
ASC01 Anti Short Cycle Kit xxxx
OT/EHR18-60 Emergency Heat relay kit --- --- --- ---

ACCESSORIES
10
Model Description CPKF24 CPKF36 CPKF42 CPKF48 CPKF60 CPKF61
AFE18-60A All Fuel Kit xxxxxx
OT18-60A Outdoor Thermostat xxxxxx
FSK01A* Freeze Protection Kit xxxxxx
ASC01 Anti Short Cycle Kit xxxxxx
TX2N2* TXV Kit --- --- --- --- --- ---
TX3N2* TXV Kit x x --- --- --- ---
TX5N2* TXV Kit --- --- xxxx
OT18-60A Outdoor Lockout Stat xxxxxx
OT/EHR18-60 Emergency Heat relay kit xxxxxx
CSR-U-1 Hard Start Kit x x --- --- --- ---
CSR-U-2 Hard Start Kit ---xxxxx
CSR-U-3 Hard Start Kit --- --- --- x x x
Model Description CKF24 CKF36 CKF48 CKF60 CKF70
AFE18-60A All Fuel Kit --- --- --- --- ---
OT18-60A Outdoor Thermostat --- --- --- --- ---
FSK01A* Freeze Protection Kit xxxxx
ASC01 Anti Short Cycle Kit xxxxx
TX2N2* TXV Kit --- --- --- --- ---
TX3N2* TXV Kit x x --- --- ---
TX5N2* TXV Kit --- --- xx
---
OT18-60A Outdoor Lockout Stat --- --- --- --- ---
OT/EHR18-60 Emergency Heat relay kit --- --- --- --- ---
CSR-U-1 Hard Start Kit x x --- --- ---
CSR-U-2 Hard Start Kit --- x x x ---
CSR-U-3 Hard Start Kit --- --- x x ---
Model Description CKL18 CKL24 CKL30 CKL36 CKL42 CKL49 CKL60
AFE18-60A All Fuel Kit --- --- --- --- --- --- ---
OT18-60A Outdoor Thermostat --- --- --- --- --- --- ---
FSK01A* Freeze Protection Kit xxxxxxx
ASC01 Anti Short Cycle Kit xxxxxxx
TX2N2* TXV Kit x --- --- --- --- --- ---
TX3N2* TXV Kit xxxx---------
TX5N2* TXV Kit --- --- --- --- x x x
OT18-60A Outdoor Lockout Stat --- --- --- --- --- --- ---
OT/EHR18-60 Emergency Heat relay kit --- --- --- --- --- --- ---
CSR-U-1 Hard Start Kit xxxx---------
CSR-U-2 Hard Start Kit --- --- --- x x x x
CSR-U-3 Hard Start Kit --- --- --- --- --- x x
Model Description CE120
AFE18-60A All Fuel Kit ---
OT18-60A Outdoor Thermostat ---
FSK01A* Freeze Protection Kit x
ASC01 Anti Short Cycle Kit x
TX2N2* TXV Kit ---
TX3N2* TXV Kit ---
TX5N2* TXV Kit ---
OT18-60A Outdoor Lockout Stat ---
OT/EHR18-60 Emergency Heat relay kit ---
CSR-U-1 Hard Start Kit ---
CSR-U-2 Hard Start Kit ---
CSR-U-3 Hard Start Kit ---

11
ACCESSORIES
SUCTION LINE BULB
1/4 FLARE CONNECTION
EXPANSION VALVE
EVAPORATOR COIL
REMOVE BEFORE INSTALLING EXPANSION VALVE
SEAL SUPPLIED W/ KIT
SEAL SUPPLIED W/ KIT
BULB TO BE LOCATED
AT 10 OR 2 O'CLOCK
ForApplicationsrequiring
afieldinstalledaccessfitting
TAILPIECE
3/8"-
SWEAT
7/8" NUT
DISTRIBUTOR
BODY
PISTON
SEAL
EVAPORATOR COIL
1/4' FLARE
CONNECTION
BULB SUCTION LINE
EXPANSION VALVE
REMOVE BEFORE
INSTALLING
EXPANSION VALVE
SEAL SUPPLIED W/ KIT
SEAL SUPPLIED W/ KIT
BULB TOBE LOCATED
AT 10 OR 2 O'CLOCK
TAILPIECE
3/8"-
SWEAT
7/8" NUT
DISTRIBUTOR
BODY
PISTON
SEAL
For Applications not requiring
afieldinstalledaccessfitting
EXPANSIONVALVEKITS
OT/EHR18-60
OUTDOORTHERMOSTAT&
EMERGENCYHEATRELAY
Set Point
A
djustment
Screw Set Point
Indicator
Mark
(Shown @ Oº F)
Thermostat
Dial
DEAD
DIAL
315º
45º
COLD (Turn Clockwise)
WARM (Turn Counterclockwise)
OT18-60

ACCESSORIES
12
FSK01A
FREEZETHERMOSTAT
KIT
T2 T1
L2 L1
BLACK 1
THERMOSTAT
WIRE
SHORT CYCLE
PROTECTOR
Y
ELLOW 1
BLACK 1
Y1
Y2
R1
R2
Y
C
UNIT
TERMINAL
BOARD
CONTACTOR
ASC01A
ANTI-SHORT-CYCLECONTROLKIT
Install Line
Thermostat
Here
Install Line
Thermostat
Here
Wire Nut
Wire Nut
Y
Y
Black
Black
Wire Nut
Y
Wire Nut Y
Black
Black

13
ACCESSORIES
ELECTRICHEATKITAPPLICATIONS
COIL ACCESSORIES
HKRSERIESELECTRICHEATKITS
COIL MODEL TX2N2 TXV KIT TX3N2 TXV KIT TX5N2 TXV KIT FSK01A FREEZE PROTECTION KIT
CA*F030B4* --- X --- X
CA*F036B4* --- X --- X
CA*F042C4* --- --- X X
CA*F048C4* --- --- X X
CA*F057D4* --- --- X X
CA*F060D4* --- --- X X
CHPF030A4* --- X --- X
CHPF036B4* --- X --- X
CHPF042A4* --- --- X X
CHPF048D4* --- --- X X
CHPF060D4* --- --- X X
CH36FCB --- X --- X
CH48FCB --- --- X X
CH60FCB --- --- X X
CA*F18246* X X --- X
CA*F30306* --- X --- X
CA*F36426* --- X X X
CHPF18246* X --- X X
CHPF30306* --- --- X X
CHPF36426* --- --- X X
CSCF1824N6* X --- --- X
CSCF303N6* --- X --- X
CSCF3642N6* --- X X X
NO
HEAT KIT HKR-03* HKR05-(C)' HKR-06* HKR-08(C)* HKR-10(C)* HKR-15C* HKR-20C* HKR-21C* ^HKR3-15* ^HKR3-20*
MBR0800AA-1AA ~~~~~~XXXXX
MBR1200AA-1AA ~~~~~~~~~~~
MBR1600AA-1AA ~~~~~~~~~~~
MBR2000AA-1AA ~~~~~~~~~~~
MBE1200AA-1AA ~XXX~~~XXXX
MBE1200AA-1BA ~~~~~~~XXXX
MBE1600AA-1AA ~XXXX~~XXXX
MBE1600AA-1BA ~~~~~~~XXXX
MBE2000AA-1AA ~XXXX~~~XXX
MBE2000AA-1BA ~~~~~~~~XXX
~ = Allowable combinations ^ = Circuit 1: Single Phase for Air Handler Motor * = Revision level that my or may not be designated
X = Restricted combinations Circuit 2: 3-Phase for HKR3 Heater Kits C = Circuit Breaker option
ELECTRIC HEAT KIT
BLOWER

PRODUCT DESIGN
14
Thissection gives abasic description ofcooling unit opera-
tion, its various components and their basic operation.
Ensureyoursystemisproperlysized forheatgainandloss
according to methods of the Air Conditioning Contractors
Association(ACCA)orequivalent.
CONDENSING UNIT
Theseunitsaredesignedforfreeairdischarge. Condensed
air is pulled through the condenser coil by a direct drive
propellerfanandthendischargedfromthecabinettop. The
unit requires no additional resistance (i.e. duct work) and
shouldnotbe added.
The GSH13, GSH14 and ASH13 Heat Pump condensing
units are designed for 208-230 dual voltage single phase
applications.TheGSH133tonmodelisavailablein230V,3
phase applications. The GSH13 4 and 5 ton models are
availablefor230V,3-phaseand460V,3-phaseapplications.
Theunitsrangeinsizefrom1.5to5-tonandhavearatingof
13and14SEER.SEERefficiencyisdependentupontheunit
and its components. Refer to the "Technical Information"
manualofthe unityou are servicingfor further details.
TheGSC13,GSC14andASC13 CondensingUnitsaremade
in1.5through5tonsizes.Theyaredesignedfor208-240volt
singlephaseapplications.The GSC133tonmodelis avail-
ablein230V,3phaseapplications. TheGSC134and5ton
modelsareavailablefor230V,3-phaseand460V, 3-phase
applications.
Suction and Liquid Line Connections
All units come equipped with suction and liquid valves
designed for connection to refrigerant-type copper. Front
seating valves are factory-installed to accept the field-run
copper. The total refrigerant charge needed for a normal
operationisalsofactory-installed. Foradditional refrigerant
line set information, refer to the "Technical Information"
manualofthe unityouare servicing.
Compressors
GSC13 and GSH13 use a mix of reciprocating and scroll
compressors. The ASC13 and ASH13 use the Copeland
Scroll®Compressor. Thereareanumberofdesigncharacter-
istics which differentiate the scroll compressor from the
reciprocating compressor. One is the scroll. A scroll is an
involutespiralwhich,whenmatchedwithamatingscrollform,
generatesaseriesofcrescent-shapedgaspocketsbetween
the members (see following illustration). During compres-
sion,onescrollremainsstationarywhiletheotherformorbits.
This motion causes the resulting gas pocket to compress
andpush toward thecenter of the scrolls. When thecenter
is reached, the gas is discharged out a port located at the
compressorcenter.
COILS AND BLOWER COILS
MBR/MBEblowercabinetsaredesignedtobeusedasatwo-
piece blower and coil combination. MBR/MBE blower sec-
tions can be attached to cased evaporator coil. This two-
piece arrangement allows for a variety of mix-matching
possibilities providing greater flexibility. The MBE blower
cabinet uses a variable speed motor that maintains a con-
stant airflow with a higher duct static.
It is approved for applications with cooling coils of up to 0.8
inchesW.C.externalstaticpressureandincludesafeature
thatallowsairflowtobechangedby+15%.TheMBRblower
cabinetusesaPSCmotor.Itisapprovedforapplicationswith
cooling coils of up to 0.5 inches W.C. external static
pressure.
TheMBR/MBEblowercabinetswithpropercoilmatchescan
be positioned for upflow, counterflow, horizontal right or
horizontalleftoperation.AllunitsareconstructedwithR-4.2
insulation. In areas of extreme humidity (greater than 80%
consistently),insulatetheexterioroftheblowerwithinsula-
tionhavingavaporbarrierequivalenttoductworkinsulation,
providinglocalcodespermit.
The CAPX/CHPX coils are equipped with a thermostatic
expansion valve that has a built-in internal check valve for
refrigerant metering. The CACF/CAPF/CHPF coils are
equippedwith a fixedrestrictor orifice.
Thecoilsaredesignedforupflow,counterfloworhorizontal
application, using two-speed direct drive motors on the
CACF/CAPF/CHPX models and BPM (Brushless Perma-
nent Magnet) or ECM motors on the MBE models.
The ARUFisamulti-positionairhandler(upflow/horizontal
ordownflow)andisequippedwithaflowratorforcoolingand
heat pump applications. Because of its seamless copper
tubing and aluminum fins, there are fewer leaks. The steel
cabinet of the ARUF is fully insulated and rust resistant.
Thermal expansion kits for air conditioning and heat pump
applicationsareavailable.
ARPF*B 2 to 5 ton air handlers are dedicated for downflow
operationandare approvedformodular homes.Flowrater.
transformerandblowertimedelayareonallstandard ARPF
units. Both the ARUF and ARPF have direct-drive multi-
speedmotors.
AEPFisamulti-position,variable-speedairhandlerandcan
be used with R-410A or R-22 (models ending in 1/16). The
unit'sblowerdesignincludesavariable-speedDCmotorand
iscompatiblewithheatpumpsandvariable-capacitycooling
applications.
ASPFisamulti-positionairhandlerthatcanbeusedwithR-
410A or R-22 and it features a X-13 motor. This motor is a
constanttorquemotorwithverylowpowerconsumptionand
it is energized by a 24V signal. The X-13 features an
integratedcontrolmoduleandiscompatiblewithheatpumps
andcoolingapplications.

SYSTEM OPERATION
15
COOLING
The refrigerant used in the system is R-22. It is a clear,
colorless,non-toxic,non-irritating,andnon-explosiveliquid.
The chemical formula is CHCLF2. The boiling point, at
atmosphericpressureis-41.4°F.
Afewoftheimportantprinciplesthatmaketherefrigeration
cycle possible are: heat always flows from a warmer to a
cooler body, under lower pressure a refrigerant will absorb
heatand vaporize at a lowtemperature, the vaporsmay be
drawnoffandcondensedatahigherpressureandtempera-
ture to be used again.
Theindoorevaporatorcoilfunctionstocoolanddehumidify
theairconditionedspacesthroughtheevaporativeprocess
taking place within the coil tubes.
NOTE: The pressures and temperatures shown in the
refrigerant cycle illustrations on the following pages are for
demonstrationpurposesonly.Actualtemperaturesandpres-
sures are to be obtained from the "Expanded Performance
Chart."
Liquidrefrigerantatcondensingpressureandtemperatures,
(270 psig and 122°F), leaves the outdoor condensing coil
throughthedrierandismeteredintotheindoorcoilthrough
the metering device. As the cool, low pressure, saturated
refrigerantentersthetubesoftheindoorcoil,aportionofthe
liquidimmediatelyvaporizes.Itcontinuestosoakupheatand
vaporizesasitproceedsthroughthecoil,coolingtheindoor
coil down to about 48°F.
Heatiscontinuallybeingtransferredtothecoolfinsandtubes
of the indoor evaporator coil by the warm system air. This
warming process causes the refrigerant to boil. The heat
removedfromtheairiscarriedoffbythevapor.
As the vapor passes through the last tubes of the coil, it
becomes superheated, that is, it absorbs more heat than is
necessarytovaporizeit.Thisisassurancethatonlydrygas
will reach the compressor. Liquid reaching the compressor
canweakenorbreakcompressorvalves.
The compressor increases the pressure of the gas, thus
addingmoreheat,anddischargeshot,highpressuresuper-
heated gas into the outdoor condenser coil.
Inthecondensercoil,thehotrefrigerantgas,being warmer
than the outdoor air, first loses its superheat by heat trans-
ferredfromthegasthroughthetubesandfinsofthecoil.The
refrigerantnowbecomessaturated,partliquid,partvaporand
then continues to give up heat until it condenses to a liquid
alone.Oncethevaporisfullyliquefied,itcontinuestogiveup
heat which subcools the liquid, and it is ready to repeat the
cycle.
HEATING
Theheatingportionoftherefrigerationcycleissimilartothe
coolingcycle.Byenergizingthereversingvalvesolenoidcoil,
the flow of the refrigerant is reversed. The indoor coil now
becomesthecondensercoil,andtheoutdoorcoilbecomes
theevaporatorcoil.
The check valve at the indoor coil will open by the flow of
refrigerant letting the now condensed liquid refrigerant by-
pass the indoor expansion device. The check valve at the
outdoor coil will be forced closed by the refrigerant flow,
therebyutilizingtheoutdoorexpansiondevice.
TherestrictororificeusedwiththeCA*F,CHPFcoils andthe
AR*Fair handler will beforced ontoa seatwhenrunning in
the cooling cycle, only allowing liquid refrigerant to pass
through the orifice opening. In the heating cycle it will be
forcedofftheseatallowingliquidtoflowaroundtherestrictor.
A check valve is not required in this circuit.
COOLINGCYCLE
When the contacts of the room thermostat close making
terminalsRtoY&G,thelowvoltagecircuitofthetransformer
iscompleted.Currentnowflowsthroughthemagnetichold-
ing coils of the compressor contactor (CC) and fan relay
(RFC).
This draws in the normally open contact CC, starting the
compressor and condenser fan motors. At the same time
contacts RFC close starting the indoor fan motor.
When the thermostat is satisfied, it opens its contacts,
breaking the low voltage circuit, causing the compressor
contactor and indoor fan relay to open, shutting down the
system.
If the room thermostat fan selector switch should be set on
the"on"position,thentheindoorblowerwouldruncontinuous
rather than cycling with the compressor.
Heat pumps energize the reversing valve thorough the "O"
circuitintheroomthermostat.Thereforethereversingvalve
remains energized as long as the thermostat subbase is in
the cooling position. The only exception to this is during
defrost.
DEFROSTCYCLE
The defrosting of the outdoor coil is jointly controlled by the
defrosttimingboard, defrost(30/60)control,andcompressor
run time.
HEATINGCYCLE
Thereversingvalveontheheatpumpmodelsisenergizedin
the cooling cycle through the "O" terminal on the room
thermostat.
Thesemodelshavea24voltreversingvalvecoil.Whenthe
thermostatselector switch is set in the cooling position, the
"O" terminal on the thermostat is energized all the time.
Caremustbetakenwhenselectingaroomthermostat.Refer
to the installation instructions shipped with the product for
approvedthermostats.

SYSTEM OPERATION
16
COOLING CYCLE
HEATING CYCLE
Indoor
Coil
Accumulator
Bi-Flow
Filter Dryer
Outdoor
Coil
Thermostatic
Expansion
Valve
Check Valve
Reversing Valve
(De-Energized)
Indoor
Coil
Accumulator
Bi-Flow
Filter Dryer
Outdoor
Coil
Thermostatic
Expansion
Valve
Check Valve
Reversing Valve
(Energized)

SYSTEM OPERATION
17
RESTRICTORORIFICEASSEMBLY
INCOOLINGOPERATION RESTRICTORORIFICEASSEMBLY INHEATINGOPERATION
In the cooling mode, the orifice is pushed into its
seat,forcingrefrigeranttoflowthroughthemetered
hole in the center of the orifice.
In the heating mode, the orifice moves back off its
seat,allowingrefrigeranttoflowunmeteredaround
the outside of the orifice.
EXPANSIONVALVE/CHECKVALVEASSEMBLY
INCOOLINGOPERATION EXPANSIONVALVE/CHECKVALVEASSEMBLY
INHEATINGOPERATION
Mostexpansion valvesused incurrent Amana®BrandHeat Pumpproducts
usean internally checkedexpansion valve.
Thistype of expansionvalve doesnotrequire anexternal check valveas shownabove.
However,the principleof operation isthe same.

SYSTEM OPERATION
18
Indoor
Coil Outdoor Coil
Thermostatic
Expansion
Valve
COOLING CYCLE - CONDENSING UNIT
In the cooling mode, the orifice is pushed into its
seat,forcingrefrigeranttoflowthroughthemetered
hole in the center of the orifice.

SYSTEM OPERATION
19
AFE18-60A CONTROL BOARD
DESCRIPTION
TheAFE18controlisdesignedforuseinheatpumpapplica-
tionswheretheindoorcoilislocatedabove/downstreamofa
gasorfossilfuelfurnace. Itwilloperatewithsingleandtwo
stage heat pumps and single and two stage furnaces. The
AFE18 control will turn the heat pump unit off when the
furnace is turned on. An anti-short cycle feature is also
incorporatedwhichinitiatesa3minutetimedoffdelaywhen
the compressor goes off. On initial power up or loss and
restoration of power, this 3 minute timed off delay will be
initiated. Thecompressorwon’tbeallowedtorestartuntilthe
3minute offdelay has expired. Also included isa 5second
de-bouncefeatureonthe“Y,E,W1andO”thermostatinputs.
These thermostat inputs must be present for 5 seconds
before the AFE18 control will respond to it.
Anoptionaloutdoorthermostat,OT18-60A,canbeusedwith
the AFE18 to switch from heat pump operation to furnace
operationbelowaspecificambienttemperaturesetting,i.e.
break even temperature during heating. When used in this
manner, the “Y” heat demand is switched to the “W1” input
to the furnace by the outdoor thermostat and the furnace is
used to satisfy the first stage “Y” heat demand. On some
controls,iftheoutdoorthermostatfailsclosedinthisposition
duringthe heatingseason, itwill turnon thefurnace during
the cooling season on a “Y” cooling demand. In this
situation, the furnace produces heat and increases the
indoor temperature thereby never satisfying the cooling
demand. Thefurnacewillcontinuetooperateandcanonly
bestoppedbyswitchingthethermostattotheoffpositionor
removing power to the unit and then replacing the outdoor
thermostat. When the AFE18 receives a “Y” and “O”
input from the indoor thermostat, it recognizes this as a
coolingdemandinthecoolingmode. Iftheoutdoorthermo-
statisstuckintheclosedpositionswitchingthe“Y”demand
to the “W1” furnace input during the cooling mode as
described above, the AFE18 won’t allow the furnace to
operate. Theoutdoorthermostatwillhavetobereplacedto
restoretheunitto normal operation.

20
TROUBLESHOOTING CHART
Complaint System Operating
Pressures
POSSIBLE CAUSE
DOTS IN ANALYSIS
GUIDE INDICATE
"POSSIBLE CAUSE"
SYMPTOM
System will not start Compressor will not start - fan runs Comp. and Cond. Fan will not start Evaporator fan will not start Condenser fan will not start Compressor runs - goes off on overload Compressor cycles on overload System runs continuously - little cooling/htg Too cool and then too warm Not cool enough on warm days Certain areas too cool, others too warm Compressor is noisy System runs - blows cold air in heating Unit will not terminate defrost Unit will not defrost Low suction pressure Low head pressure High suction pressure High head pressure
Test Method
Remedy
See Service Procedure Ref.
Power Failure •Test Voltage S-1
Blown Fuse ••• Inspect Fuse Size & Type S-1
Unbalanced Power, 3PH ••• Test Voltage S-1
Loose Connection ••• Inspect Connection - Tighten S-2, S-3
Shorted or Broken Wires •••••• Test Circuits With Ohmmeter S-2, S-3
Open Fan Overload •• Test Continuity of Overload S-17A
Faulty Thermostat ••• • Test Continuity of Thermostat & Wiring S-3
Faulty Transformer •• Check Control Circuit with Voltmeter S-4
Shorted or Open Capacitor • •••• Test Capacitor S-15
Internal Compressor Overload Open •♦Test Continuity of Overload S-17A
Shorted or Grounded Compressor •• Test Motor Windings S-17B
Compressor Stuck ••• ♦Use Test Cord S-17D
Faulty Compressor Contactor ••• Test Continuity of Coil & Contacts S-7, S-8
Faulty Fan Relay •Test Continuity of Coil And Contacts S-7
Open Control Circuit •Test Control Circuit with Voltmeter S-4
Low Voltage ••• Test Voltage S-1
Faulty Evap. Fan Motor ••
♦Repair or Replace S-16
Shorted or Grounded Fan Motor ••
Test Motor Windings S-16
Improper Cooling Anticipator •• Check Resistance of Anticipator S-3B
Shortage of Refrigerant •• ♦•• Test For Leaks, Add Refrigerant S-101,103
Restricted Liquid Line •• •• •
Remove Restriction, Replace Restricted Part S-112
Open Element or Limit on Elec. Heater ♦♦ Test Heater Element and Controls S-26,S-27
Dirty Air Filter ••• • ♦Inspect Filter-Clean or Replace
Dirty Indoor Coil ••• • ♦Inspect Coil - Clean
Not enough air across Indoor Coil ••• • ♦Check Blower Speed, Duct Static Press, Filter S-200
Too much air across Indoor Coil ♦•Reduce Blower Speed S-200
Overcharge of Refrigerant •• •♦••
Recover Part of Charge S-113
Dirty Outdoor Coil •• • ♦•Inspect Coil - Clean
Noncondensibles ••♦•Recover Charge, Evacuate, Recharge S-114
Recirculation of Condensing Air •• •
Remove Obstruction to Air Flow
Infiltration of Outdoor Air ••• Check Windows, Doors, Vent Fans, Etc.
Improperly Located Thermostat •• Relocate Thermostat
Air Flow Unbalanced •• Readjust Air Volume Dampers
System Undersized •• Refigure Cooling Load
Broken Internal Parts •♦Replace Compressor S-115
Broken Valves •• ••
Test Compressor Efficiency S-104
Inefficient Compressor •♦•• Test Compressor Efficiency S-104
Wrong Type Expansion Valve ••• • •• ♦Replace Valve S-110
Expansion Device Restricted ••• • •• •
Remove Restriction or Replace Expansion Device S-110
Oversized Expansion Valve ••
Replace Valve
Undersized Expansion Valve ••• • • Replace Valve
Expansion Valve Bulb Loose ••
Tighten Bulb Bracket S-105
Inoperative Expansion Valve •• • Check Valve Operation S-110
Loose Hold-down Bolts •Tighten Bolts
Faulty Reversing Valve •♦♦
♦
♦
♦
♦Replace Valve or Solenoid S-21, 122
Faulty Defrost Control •♦♦
♦
♦♦ ♦
Test Control S-24
Faulty Defrost Thermostat ♦♦
♦
♦♦
♦
♦Test Defrost Thermostat S-25
Flowrator Not Seating Properly •••
Check Flowrator & Seat or Replace Flowrator S-111
• Cooling or Heating Cycle (Heat Pump) ♦
COOLING/HP ANALYSIS CHART
No Cooling Unsatisfactory Cooling/Heating
Heating Cycle Only (Heat Pump)