Goodman ANX, SSX, ASX, GSX, DSX Service manual

Service Instructions

ANX, SSX, ASX, GSX, DSX

Condensing Units,

ANZ, SSZ, ASZ, GSZ, DSZ, VSX, VSZ Split System Heat Pumps

with R-410A Refrigerant

Blowers, Coils, & Accessories

This manual is to be used by qualified, professionally trained HVAC technicians only. The
manufacturer does not assume any responsibility for property damage or personal injury due to
improper service procedures or services performed by an unqualified person.

Copyright © 2006 - 2016 Goodman Manufacturing Company, L.P.

RS6200006r76

December 2016

Table of Contents

IMPORTANT INFORMATION ................................................... 2

PRODUCT IDENTIFICATION - MODEL TREES ..................... 4

COILS .................................................................................. 6

BLOWERS .......................................................................... 7

AIR HANDLERS .................................................................. 8

LIGHT COMMERCIAL ....................................................... 10

PRODUCT IDENTIFICATION - CHARTS .............................. 11

LIGHT COMMERCIAL ....................................................... 11

SPLIT SYSTEM HEAT PUMPS .......................................... 12

AIR HANDLERS ................................................................ 37

COILS ................................................................................ 43

ACCESSORIES - LIGHT COMMERCIAL .............................. 47

MODELS TO KITS MATCHUP ........................................... 48

ASSOCIATED KITS ........................................................... 57

PRODUCT DESIGN .............................................................. 69

SYSTEM OPERATION ........................................................... 72

TROUBLESHOOTING CHART ............................................. 76

IMPORTANT INFORMATION

Pride and workmanship go into every product to provide our customers with quality products. It is possible, however, that during its
lifetime a product may require service. Products should be serviced only by a qualified service technician who is familiar with the
safety procedures required in the repair and who is equipped with the proper tools, parts, testing instruments and the appropriate
service manual. REVIEW ALL SERVICE INFORMATION IN THE APPROPRIATE SERVICE MANUAL BEFORE BEGINNING REPAIRS.

IMPORTANT NOTICES FOR CONSUMERS AND SERVICERS

RECOGNIZE SAFETY SYMBOLS, WORDS AND LABELS

T

HIS UNIT SHOULD NOT BE CONNECTED TO. OR USED IN
CONJUNCTION WITH, ANY DEVICES THAT ARE NOT DESIGN CERTIFIED
FOR USE WITH THIS UNIT OR

NOT BEEN TESTED AND APPROVED BY THE MANUFACTURER

HAVE

ERIOUS PROPERTY DAMAGE OR PERSONAL INJURY, REDUCED UNIT

S

PERFORMANCE

AND/OR HAZARDOUS CONDITIONS MAY RESULT FROM THE USE OF
DEVICES THAT HAVE NOT BEEN APPROVED OR CERTIFIED BY THE
MANUFACTURER

.

.

HIGH VOLTAGE
D

ISCONNECT

UNIT

F

AILURE TO DO SO MAY CAUSE PROPERTY DAMAGE, PERSONAL INJURY

OR DEATH

ALL

POWER BEFORE SERVICING OR INSTALLING THIS

. M

ULTIPLE POWER SOURCE S MAY BE PRESENT

.

.

O

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 APPLICANCE

NLY PERSONNEL THAT HAVE BEEN TRAINED TO INSTALL, ADJUST, SERVICE OR

REPAIR (HEREINAFTER

,

.

MANUAL SHOULD SERVICE THE EQUIPMENT

BE RESPONSIBLE FOR ANY INJURY OR PROPERTY DAMAGE ARISING FROM

IMPROPER SERVICE OR SERVICE PROCEDURES

ASSUME RESPONSIBILITY FOR ANY INJURY OR PROPERTY DAMAGE WHICH MAY

RESULT

. IN

LICENSES TO SERVICE THE EQUIPMENT SPECIFIED IN THIS MANUAL, ONLY

LICENSED PERSONNEL SHOULD SERVICE THE EQUIPMENT

INSTALLATION, ADJUSTMENT, SERVICING OR REPAIR OF THE EQUIPMENT

SPECIFIED IN THIS MANUAL, OR ATTEMPTING TO INSTALL, ADJUST, SERVICE OR

REPAIR THE EQUIPMENT SPECIFIED IN THIS MANUAL WITHOUT PROPER

TRAINING MAY RESULT IN PRODUCT DAMAGE, PROPERTY DAMAGE, PERSONAL

INJURY OR DEATH

, “

SERVICE

”)

THE EQUIPMENT SPECIFIED IN THIS

. THE

MANUFACTURER WILL NOT

. IF

YOU SERVICE THIS UNIT, YOU

ADDITION, IN JURISDICTIONS THAT REQUIRE ONE OR MORE

. I

MPROPER

.

To locate an authorized servicer, please consult your telephone book or the dealer from whom you purchased this product.
For further assistance, please contact:

CONSUMER INFORMATION LINE

GOODMAN® BRAND PRODUCTS

TOLL FREE

1-877-254-4729 (U.S. only)

email us at: [e-mail]

fax us at: [phone]

(Not a technical assistance line for dealers.)

email us at: [e-mail]

AMANA® BRAND PRODUCTS

TOLL FREE

1-877-254-4729 (U.S. only)

fax us at: [phone]

(Not a technical assistance line for dealers.)

(Not a technical assistance line for dealers.) Your telephone company will bill you for the call.

is a registered trademark of Maytag Corporation or its related companies and is used under license. All rights reserved.

2

Outside the U.S., call 1-713-861-2500.

IMPORTANT INFORMATION

SAFE REFRIGERANT HANDLING

While these items will not cover every conceivable situation, they should serve as a useful guide.

R

EFRIGERANTS ARE HEAVI ER THAN AIR
YOUR LUNGS OR IN ANY ENCLOSED SPACE
BREATHI NG OR DEATH

EVER PURGE REFRIGE RANT INTO AN ENCLOSED ROOM OR SPACE

• N

ALL REFRIGE RANTS MUST BE RECLA IMED

F AN INDOOR LEAK IS SUSPECTED, THOROUGHLY VENTILATE THE ARA

• I

BEFORE BEGINNING WORK

IQUID REFRIGERANT CAN BE VERY COLD

• L

BLINDNESS, AVOID CONTACT WITH REFRIGERANT AND WAR GLOVES AND
GOGGL ES

. IF

MEDICAL HELP IMMEDIATELY

• A

LWAYS FOLLOW

POISONOUS GAS WILL BE PRODUCED

:

LIQUID REFRIGERANT DOES CONTACT YOUR SKIN OR EYES, SEEK

EPA

REGULATIONS

. T

HEY CAN “PUSH OUT” THE OXYGEN IN

. TO

AVOID POSSIBLE DIFFICULTY IN

. BY

.

.

. TO

AVOI D POSSIBLE FROSTBITE OR

LAW

,

TO

AVOID POSSIBLE EXPLOSION

EVER APPLY FLAME OR STEAM TO A REFRIGERANT CYLIN DER

• N

HEAT A CYLIN DER FOR FASTER CHARGIN G, PARTIALLY IMMERSE IT IN WARM
WATER

.

EVER FILL A CYLIN DER MORE THAN

• N

EVER ADD ANYTHING OTHER THAN

• N

TO AN

410A

LISTED OR CERTIFIED FOR THE TYPE OF REFRIGERANT USED

• S

TORE CYLIN DERS IN A COOL, DRY PLACE

PLATFORM OR A ROLLER

R-410A

:

CYLINDER

.

. THE

.

. N

EVER BURN REFRIGERANT, AS

.

TO

AVOID POSSIBLE EXPLOSION, USE ONLY RETU RNABL E (NOT DISPOSABLE

SERVICE CYLINDERS WHEN REMOVING REFRIGE RANT FROM A SYSTEM

• E

NSURE THE CYLINDER IS FREE OF DAMAGE WHICH COULD LEAD TO A

LEAK OR EXPLOSION

• E

NSURE THE HYDROSTATIC TEST DATE DOES NOT EXCEED

• E

NSURE THE PRESSURE RATING MEETS OR EXCEEDS

.

. IF

YOU MUST

80%

FULL OF LIQUID REFRIGERANT

R-22 TO AN R-22

SERVICE EQUIPMENT USED MUST BE

CYLIN DER OR

.

. N

EVER USE A CYLIN DER AS A

.

5

YEARS

.

400 PSIG.

.

R-

)

THE U

NITED STATES ENVIRONMENTAL PROTECT ION AGENC Y

HAS ISSUED VARIOUS REGULATIONS REGARDING THE INTRODUCTION AND

OF

DISPOSAL

FOLLOW

LEAD

MAY

LOCAL

S

YSTEM CONTAMINA NTS, IMPROPER SERVICE PROCED URE AND/OR PHYSICAL
ABUSE AFFECTIN G HERMETIC COMPRESSOR ELECTRICAL TERMINALS MAY CAUSE
DANGEROUS SYSTEM VENTING

REFRIGE RANTS INTRODUCED INTO THIS UNIT

THESE REGULATIONS MAY HARM THE ENVIRONMENT AND CAN

TO

THEH IMPOSITION OF SUBSTANTIAL FINES

VARY BY JURISDICTION

EPA

OFFICE

. S

HOULD QUESTIONS ARISE, CONTACT YOUR

.

. T

.

("EPA")

. F

AILURE TO

HESE REGULA TIONS

The successful development of hermetically sealed refrigeration
compressors has completely sealed the compressor's moving
parts and electric motor inside a common housing, 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 compressor
motor through terminal conductors which pass through the
compressor housing wall. These terminals are sealed in a
dielectric material which insulates them from the housing and
maintains the pressure tight integrity of the hermetic compres­sor. The terminals and their dielectric embedment are strongly
constructed, but are vulnerable to careless compressor instal­lation or maintenance procedures and equally vulnerable to
internal electrical short circuits caused by excessive system
contaminants.

HEN IN DOUBT, DO NOT USE CYLINDER

W

TO

AVOID POSSIBLE INJURY, EXPLOSION OR DEATH, PRACTICE SAFE

OF

HANDLING

REFRIG ERANTS

.

.

In either of these instances, an electrical short between the
terminal and the compressor housing may result in the loss of
integrity between the terminal and its dielectric embedment. This
loss may cause the terminals to be expelled, thereby venting the
vaporous and liquid contents of the compressor housing and
system.

A venting compressor terminal normally presents no danger to
anyone, providing the terminal protective cover is properly in
place.

If, however, the terminal protective cover is not properly in place,
a venting terminal may discharge a combination of

(a) hot lubricating oil and refrigerant

(b) flammable mixture (if system is contaminated

with air)

in a stream of spray which may be dangerous to anyone in the
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 terminal
protective cover properly in place.

See Service Section S-17 for proper servicing.

3

PRODUCT IDENTIFICATION

AN Z 13 018 1 AA

1 2 3 4,5 6,7,8 9 10,11

Brand

A -

Amana® brand

Type

N 1 - 208/230V Single-Phase 60 Hz

Deluxe Split System

2 - 220/240V Single-Phase 50 Hz

Type 3 - 208/230V Three-Phase 60 Hz

X: Condens er R-4 10A 4 - 4 60V Three-Pha se 60 Hz

Z: Heat Pump R-410A 5 - 380/415V Three-Phase 50 Hz

SEER

11 - 11 SEER

13 - 13 SEER

14 - 14 SEER

16 - 16 SEER

18 = 1-1/2 Tons
24 = 2 Tons
30 =

2-1/2 Tons

Major/Minor Revis ions

3-1/2 Tons

42 =

48 = 4 Tons

59 = 5 Tons

Engineering

Voltage

Nominal Capacity

36 = 3 Tons 60 = 5 Tons

61 = 5 Tons

4

PRODUCT IDENTIFICATION

SS Z 14 1 AA

1 2 3 4,5 9 10,11

Brand

G

Goodman® brand

(Standard Feature Set)

S

Goodman® brand

(High Feature Set)

A

Amana® brand

Deluxe

D

Goodman® brand

Deluxe

V

Value Li ne

Type

S 1 - 208/230V Single-Phase 60 Hz

Split System

Type 3 - 208/230V Three-Phase 60 Hz

X: Condenser R-410A 4 - 460V Three-Phase 60 Hz

Z: Heat Pump R-410A 5 - 380/415V Three-Phase 50 Hz

036

6,7,8

Engineering

Maj or/Mi nor Revi si ons

Voltage

2 - 220/240V Single-Phase 50 Hz

SEER

13 - 13 SEER 018 = 1-1/2 Tons 042 = 3-1/2 Tons

14 - 14 SEER 024 = 2 Tons 048 = 4 Tons

16 - 16 SEER 030 = 2-1/2 Tons 059 = 5 Tons

18 - 18 SEER 036 = 3 Tons 060 = 5 Tons

038 = 3 Tons

5

PRODUCT IDENTIFICATION

A

=

CAP F 1824 A 6 A

1 2 3 4 5,6,7,8 9 1 0 11,12

Brand Engineering*

C Indoor Coil

Unit Application 2 = R-22

A Upfl ow/Downfl ow Coil

H Horizontal A-Coil

Horizontal Slab Coil

S

Coated Coils

T

Nominal Width for Gas Furnace

A = Fits 1 4" 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

Major/Minor Revisions

Refrigerant Charge

4 = R-410A

6 = R-410A or R-22

Cabinet Finish

U Unpai nted

PPainted

N Unpainted Cas e

Expansion Device

FFlowrator
T 4 - 5 Tons

Expansi on Valve 4 - 5 Tons

1824 =

3030 =

3131 =

3636 =

3642 =

3743 =

4860 = Factory-Installed Non-Adjustable

4961 =

Nominal Capacity @ 13 SEER

1-1/2 - 2 Tons

2-1/2 Tons

2-1/2 Tons

3 Tons

3 - 3-1/2 Tons

3 - 3-1/2 Tons

6

PRODUCT IDENTIFICATION

A

A

H

MB R 8 00

1,2 3 4 5,6 7 8 9

Brand

MB - Modular Blower 1: 208-230V/60Hz/1 P

Type A: Fi rst Seri es

R -

Speed

E -

Vari able Speed

Airflow A: No Ci rcuit Breaker

8:

12:

16:

20:

800 CFM

1200 CFM

1500 CFM

2000 CFM

B: Ci rcuit Breaker

1

Elect rical

Design Se ries

Circuit Breaker

Factory Heat

00 No Heat

7

PRODUCT IDENTIFICATION

W

A

1 2 3 4 5,6,7,8 9 10 11 ,12

Brand Engineering*

A Airhandler

Unit Application Refrigerant Charge

C Ceiling Mount PSC Motor 4 = R-410a

DDownflow PSC Motor

Multi Position

E Electrical

Vari a bl e Sp eed

R Mul ti Pos iti on PSC Motor

S Mul ti Posi tion EEM Motor

T Coated Coils

W Wal l Mount PSC/EEM Motor

Cabinet Finish 1830 = 1-1/2 - 3-1/2 Tons

U Unpainted 3137 = 3 Tons

PPainted 3642 = 3 - 3-1/2Tons

NUncased

Expansion Device

FFlowrator

T Expansion Valve 1803 = 1-1/2 Tons Cooling/3 kW Electric Heat

U F 3642 1 6 AA

Maj or/Mi nor Revisi ons

1 208/240V, 1 Phase, 60 Hz

Nominal Capacity

@ 13 SEER Dedicated Application

3636 = 3 Ton

Multi-Position & Downflow Application

Multi-Position & Downflow Application @10 SEER

1729 = 3 Ton

Ceing 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

3105 = 1-1/2 - 2-1/2 Tons Cooling/5 kW Electric Heat

3210 = 2 - 2-1/2 Tons Cooling/5 kW Electric Heat

3705 = 3 Tons Cooling/5 kW Electric Heat

3708 = 3 Tons Cooling/8 kW Electric Heat

3710 = 3 Tons Cooling/10 kW Electric Heat

An "F" in the model number denotes a
Factory Installed Float Switch is present.

All Airhandlers use DIRECT DRIVE MOTORS. Power supply is AC 208-240v, 60 hz, 1 phase.

8

PRODUCT IDENTIFICATION

ARU F 18 B 1 4AA

123 4 5,6 7 8 910,11

Brand Engineering*

A Singl e-Pi ece

Ai rhandl er

Unit Application Refrigerant Charge

C Ceiling Mount PSC Motor 4 = R-410a

R Mul ti Pos iti on PSC Motor

S Mul ti Posi ti on EEM Motor Electrical

W Wall Mount PSC/EEM Motor 1 208/240V, 1 Phase, 60 Hz

Maj or/Mi nor Revi si ons

Cabinet Finish

UUnpainted B =

PPainted C = 21" Wide

NUncased D = 24 -1/2" Wide

Expansion Device

F Flowrator 18 =

T Expansion Valve 24 = 2 Tons 47 =

1-1/2 Tons

25 = 2 Tons 48 = 4 Tons

2-1/2 - 3 Tons

29 =

2-1/2 Tons

30 =

36 =3 Tons 60 =5 Tons

2-1/2 - 3 Tons

37 =

Nominal Capacity @ 13SEER

Cabinet Width

1/2" Wide

17-

3-1/2 Tons

42 =

3-1/2 Tons

49 = 4 Tons

59 = 5 Tons

61 = 5 Tons

Airhandlers use DIRECT DRIVE MOTORS. Power supply is AC 208-230v, 60 hz, 1 phase.

9

PRODUCT IDENTIFICATION

A

A

GS X 11 090 1 AA

1 2 3 4,5 6,7,8 9 10,11

LIGHT COMMERCIAL

Brand

G - Goodman brand

A - Amana brand

Type

S 1 - 208/230V Single-Phase 60 Hz

Split Sys tem

2 - 220/240V Single-Phase 50 Hz

Type 3 - 208/230V Three-Phase 60 Hz

X: Condens er R-41 0A 4 - 460V Three-Phase 60 Hz

Z: Heat Pump R-410A 5 - 380/415V Three-Phase 50 Hz

SEER

11 - 11 SEER

13 - 13 SEER

14 - 14 SEER

16 - 16 SEER 036 - 3 Tons

048 - 4 Tons

060 - 5 Tons

090 - 7-1/2 Tons

120 - 10 Tons

Maj or/Mi nor Revi si ons

Engineering

Voltage

Nominal Capacity

10

R 090 A

12 3,4,5 6,7

Brand

Single Piece

A

Ai r Handler

Unit Application

R 090 7-1/2 Tons

Multi Position
PSC Motor

For use with GSX/GSZ11 Light Commercial models only.

Maj or/Mi nor Revisi ons

Engineering

Nominal Capacity

120 10 Tons

PRODUCT IDENTIFICATION

GSX11 LIGHT COMMERCIAL

LIGHT COMMERCIAL

OODMAN® BRAND SPLIT

G

Model/Rev Description

GSX11090*AA
GSX11120*AA

GSX111203AB
GSX110903AB
GSX111204AB
GSX110904AB

Introduction of Goodman Light Commercial 11 SEER, R-410A Condensers.

208-230V and 460V 3 Phase condensing units with new ball valve/brackets, suction
tube/assembly and panel w/offset.

R410A CONDENSERS 11 SEER

X-

GSZ11 LIGHT COMMERCIAL

OODMAN SPLIT Z-R410A HEAT PUMP 11 SEER

G

Model/Rev Description

GSZ11090*AA
GSZ11120*AA

GSZ110903AB
GSZ111203AB
GSZ110904AB
GSZ111204AB

Introduction of Goodman Light Commercial 11 SE ER, R-410A Heat Pumps.

208-230V and 460V 3 Phase R410A heat pump units with new ball valve/brack ets, suction
tube/assembly and panel w/offset.

AR LIGHT COMMERCIAL

SINGLE PIECE

A

Model/Rev Description

AR0904A
AR1204A

Introducation of new 7.5 & 10 Ton Air Handler Models, for use with GSX11 and GSZ11
Light Commercial Models.

MULTI-POSITION PSC MOTOR

R-

11

PRODUCT IDENTIFICATION

Split System Heat Pumps

ASZ13

MANA® BRAND SPLIT

A

Model/Rev Description

ASZ130**1AA Initial release of Amana® Brand 13 SEER Heat Pump R410A.

ASZ130**1AB Introduces new revisions with improved circuiting for effective defrost.

ASZ130[18, 36-60]1AB
ASZ130[24-30]1AC

ASZ130[18, 36-60]1AC
ASZ130[24-30]1AD

ASZ130[18, 36-60]1AD
ASZ130[24-30]1AE

ASZ130241BA Release of 2 Ton models, converting from 3/8" to 5mm condenser coils

ASZ130181AF
ASZ130[24-30]1AG

ASZ130481AF

ASZ130361AG
ASZ130421AH

Introduces models c ontaining crankcas e heater, CCH s witch and upgraded defrost
control.

Relocation of low pressure switch from liquid line to suction line as a compressor
safeguard to prevent low pressure from entering.

Initial release of models using single speed PSC motors; removal of low ambient
temperature switch.

Current reversing valve change from Dunan to new SanHua reversing valve

Current Ranco reversing valve 0151M00020 replaced by SanHua 0151R00070 reversing
va lve

Change from copper wound motor to aluminum wound motor.

R410A HEAT PUMP 13 SEER

Z-

ASZ130481AG
ASZ130601AF

Create new Motor 0131M00807 & Replace 0131M00061 with 0131M00807

12

PRODUCT IDENTIFICATION

Split System Heat Pumps

ASZ14

MANA® BRAND SPLIT

A

Model/Rev Description

ASZ140**1AA

ASZ140**1AB Screw locations moved in the top panel, base pans, louvers, and control box covers.

ASZ140**1AC Horizontal style louvers.

ASZ140[18, 42-48]1AD
ASZ140[24-36, 60] 1AE

ASZ140361AF
ASZ140421AD
ASZ140[48-60]1AE

ASZ140[18, 30,36]1AF
ASZ140241AG
ASZ14[42, 48, 60]1AE

ASZ140241AF Smaller B1227315 reversing valve.

ASZ140[18,30,36]1AG
ASZ140241AH
ASZC160[42,48,60]1AF

Initial release of Amana® Brand 14 SEER Heat Pump R410A with sound blankets and
Coresense control.

New steel muffler, and suction tubes w/s hock loop.

TXV & compensator replaced with flowrator & accumulator.

Sanhua (RANCO) reversing valves.

Introduction of heat pumps with accumulators, crankcase heaters, and upgraded defrost
control.

R410A HEAT PUMP 14 SEER

Z-

ASZ140361BA Chassis size reduct ion from large to medium.

ASZ140[18, 30]1AH
ASZ140241AJ
ASZ140[42-60]1AG

ASZ140[18, 30]1AJ
ASZ140241AK
ASZ140[42-60]1AH
ASZ140361BB

ASZ140181AL
ASZ140241AM
ASZ140301AL
ASZ140361BC
ASZ140381AB
ASZ140[42-60]1AK

Relocation of low pressure switch from liquid line to suction line as a compressor
safeguard to prevent low pressure from entering.

2 speed PSC motors replaced with s ingle speed PSC motors.

Revision made for design improvement.

*ASZ14 CONTINUED ON THE NEXT PAGE

13

PRODUCT IDENTIFICATION

Split System Heat Pumps

ASZ14

MANA® BRAND SPLIT

A

Model/Rev Description

ASZ140381AA 35" chass is with 6-channel flowrator and ZP29K5 compressor.

ASZ140[18-30]1BA Updated ratings and agency information.

ASZ140[18-60]1KA

ASZ140[421,491,]KB Motor change on 3 & 3.5T 14 SEER & 2 & 2.5T 16 SEER. Increase blade gap.

ASZ140181KC Change from copper wound motor to aluminum wound motor.

Introduction of ready 15, 14 SEER heat pumps to meet the 2015 energy efficiency
requirem ent.

R410A HEAT PUMP 14 SEER

Z-

ASZ140[241, 301, 361, 481, 601]KB
ASZ140[421, 491] KC

ASZ140181KD Refrigerant Charge Reduction

ASZ140[241,301,361,]KC

ASZ140[481,601]KC

Refrigerant Charge Reduction

Equivalent motor with Aluminum W indings replacing Copper Windings.

Create new Motor 0131M00807 & Replace 0131M00061 with 0131M00807

14

PRODUCT IDENTIFICATION

Split System Heat Pumps

ASZ16

MANA® BRAND SPLITS

A

Model/Rev Description

ASZ160**1AA Initial releas e of Amana® Brand 16 SEER Heat Pump R410A.

ASZ160**1AB

ASZ160**1AC Horizontal style louvers.

ASZ160**1AD Muffler and standardized TXV, Compensator using the ASZ18 Seer weldment.

ASZ160241AD
ASZ160[36-60]AE

ASZ160[24, 36]1AF
ASZ160[48, 60]1AF

ASZ160[24,36,48,60]1KA Initial release of Amana® Brand 16 SEER Heat Pump models

ASZ160[18-48]1LA Initial release of Amana® Brand 16 SEER Heat Pump models with 9.6+ HSPF

ASZ160601LA Initial release of Amana® Brand 5 Ton 16 SEER, 13 eer Heat Pump models.

ASZ160[241,301]LB Motor change on 3 & 3.5T 14 SEER & 2 & 2.5T 16 SEER. Increase blade gap.

ASZ160181LB 16SEER 1.5T Heat Pumps, Remove Hard Start Kit

ASZ160181LC Change from copper wound motor to aluminum wound motor.

ASZ160[361,481]LB Create new Motor 0131M00807 & Replace 0131M00061 with 0131M00807

Introduces models with screw locations moved in the top panel, base pans, louvers, and
control box covers.

Adds new steel muffler, and suction tubes w/s hock loop.

Sanhua (RANCO) reversing valves.

R410A HEAT PUMP 16 SEER

Z-

ASZ18

MANA® BRAND SPLIT

A

Model/Rev Description

ASZ180**1AB Initial releas e of Amana® Brand 18 SEER Heat Pump R410A.

ASZ180[36, 48, 60]1AC Sanhua (RANCO) reversing valves.

R410A HEAT PUMP 18 SEER

Z-

15

PRODUCT IDENTIFICATION

Split System Heat Pumps

ANZ13

MANA® BRAND SPLIT SYSTEM

A

Model/Rev Description

ANZ130[18-60]1AA Initial releas e of Amana® Brand Split System Base Heat Pump, 13 Seer R-410A units.

ANZ130[18/24/30]1AB Reversing valve change from Dunan to new SanHua reversing valve

ANZ130481AB Ranco 0151M00020 reversing valve changed to new SanHua 0151R00070 reversing valve

ANZ130241AC Create new Motor & Replace 0131M00294 with 0131M00800

ANZ130601AB Create new Motor 0131M00807 & Replace 0131M00061 with 0131M00807

N-

BASE

R410A HEAT PUMP 13 SEER

Z-

ANZ1 4

MANA® BRAND SPLIT SYSTEM

A

Model/Rev Description

ANZ140(18-60)1AA

ANZ140(24-30)1AB Energy guide update.

ANZ140181AB

Introduction of ready 15, 14 SEER heat pumps to meet the 2015 energy efficiency
requirement.

Minor revisions on OD units ZP14K6 compressors without hard start kit.
14S 1.5T HPs ONLY.

N-

BASE

R410A HEAT PUMP 14 SEER

Z-

ANZ140421AB
ANZ140491AB

ANZ140[181, 301]AC
ANZ140361AB

ANZ140[421, 491]AC
ANZ140[481, 601]AB

ANZ140[181,301]AD
ANZ140361AC

ANZ140241AD Equivalent motor with Aluminum Windings replacing Copper Windings.

ANZ140[481,601]AC Create new Motor 0131M00807 & Replace 0131M00061 with 0131M00807

Motor change on 3 & 3.5T 14 SEER & 2 & 2.5T 16 SEER. Increase blade gap.

Change from copper wound motor to aluminum wound motor.

Refrigerant Charge Reduction

Refrigerant Charge Reduction

16

PRODUCT IDENTIFICATION

Split System Heat Pumps

DSZ16

ELUXE SPLIT

D

Model/Rev Description

DSZ160**1AA Initial release of Deluxe Goodman 2-stage 16 SEER heat pumps with R-410A.

DSZ160241AC
DSZ16036, 48, 60]1AB

Sanhua (RANCO) reversing valves.

R410A HEAT PUMP 16 SEER

Z-

DSZ18

ELUXE SPLIT

D

Model/Rev Description

DSZ180**1AA Initial release of Deluxe Goodman 2-stage 18 SEER heat pumps with R-410A.

DSZ180[36, 48, 60]1AB Sanhua (RANCO) reversing valves.

R410A HEAT PUMP 18 SEER

Z-

17

PRODUCT IDENTIFICATION

Split System Heat Pumps

VSZ13

ALUE SPLIT

V

Model/Rev Description

VSZ13**1AA Initial release of Value Line 13 SEER heat pumps with R-410A.

VSZ130[24 & 30]1AB Improved circuiting for effective defrost.

VSZ130[24 & 36]1BA Initial release of models with 5mm Smart Coil™.

VSZ130[18, 42, 48]1AB
VSZ130241BB
VSZ130301AC

VSZ130[24 & 36]1BC
VSZ130301AE
VSZ130[18, 42 & 48]1AD

VSZ130[18, 42-60]1AC
VSZ130301AD

VSZ130241CA

VSZ130181AE
VSZ130421AF

VSZ130361BD
VSZ130301AF
VSZ130481AE

Models containing crankcase heater, CCH switch and upgraded defrost control.

Release of single phase models with new 6 pole motor.

Relocation of low pressure switch from liquid line to suction line as a compressor
safeguard to prevent low pressure from entering.

Release of 2 Ton models with a compressor change from ZP21K5EPFV130 to
ZP20K5EPFV130.

Changed from four-piece louver assembly to a two piece louver assembly. Added a corner
post on 26" and 29" chassis.

Single phase models with new 6 pole motor.
Changed from four-piece louver assembly to a two piece louver assembly. Added a corner
post on 26" and 29" chassis.

R410A HEAT PUMP 13 SEER

Z-

VSZ130421AF Compressor change from ZP36K5EPFV130 to ZP34K5EPFV130.

VSZ130241CB

VSZ130181AF
VSZ130241BD
VSZ130301AG

VSZ130481AF Ranco 0151M00020 reversing valve replaced by SanHua 0151R00070 reversing valve

VSZ130241BE Create new Motor & Replace 0131M00294 with 0131M00800

VSZ130601AD Create new Motor 0131M00807 & Replace 0131M00061 with 0131M00807

2 Ton models changing from the current four piece louver assembly, to a two piece louver
plus a corner post on Goodman and value series 26" and 29" chassis.

Reversing valve change from Dunan to new SanHua.

18

PRODUCT IDENTIFICATION

Split System Heat Pumps

VSZ14

ALUE SPLIT

V

Model/Rev Description

VSZ14[018-060]1AA Introduction of ready 15, 14 SEER heat pumps to meet the 2015 efficiency requirement.

VSZ140(18-30)1AB Energy guide update. PCBDM160 with new software.

R410A HEAT PUMP 14 SEER

Z-

VSZ140421AB
VSZ140491AB

VSZ140[181,301]AC
VSZ140[361,481,601]AB

VSZ140[181, 301]AD
VSZ140361AC

VSZ140[241, 421, 491]AC

VSZ140241AD

VSZ140[481,601]AC

Motor change on 3 & 3.5T 14 SEER & 2 & 2.5T 16 SEER. Increase blade gap.

Refrigerant charge reduction.

Change from copper wound motor to aluminum wound motor.

Refrigerant Charge Reduction

Equivalent motor wit h Aluminum Windings replacing Copper Windings.

Create new Motor 0131M00807 & Replace 0131M00061 with 0131M00807

19

PRODUCT IDENTIFICATION

Split System Heat Pumps

GSZ13

OODMAN SPLIT

G

Model/Rev Description

GSZ13**1AA Initial release with Regal Beloit motor.

GSZ13**1AB
GSZ13**3AA
GSZ13**4AA

GSZ130[24 & 30]1AC Release of minor revision with improved circuiting for effective defrost.

GSZ130[24 & 36]1BA Initial release of models with 5mm Smart Coil™.

GSZ130241CA

GSZ130241CB

GSZ130[18, 42-60]1AC
GSZ130301AD
GSZ130361BB
GSZ130[18,42,48,60]1AD
GSZ130301AE
GSZ130[36,48,60{3,4]AB
GSZ130[48,60{3,4]AB

GSZ130[18,42,48]1AF
GSZ130301AG
GSZ130[36,48]3AD
GSZ130484AC

Initial release with Broad Ocean motor.

Release of 2 Ton models with a compressor change from ZP21K5EPFV130 to
ZP20K5EPFV130.

2 Ton models changing from the current four piece louver assembly, to a two piece louver
plus a corner post on Goodman and value series 26" and 29" chassis .

Release of models containing crankcase heater, CCH switc h and upgraded defrost control.

Relocation of low press ure switch from liquid line to suction line as a compress or safeguard
to prevent low pressure from entering.

Changing from the current four piece louver ass embly , to a two piece louver plus a c orner
post on Goodman and value series 26" and 29" chassis.

R410A HEAT PUMP 13 SEER

Z-

GSZ130361BC
GSZ130[42 & 48]1AE

GSZ130361BD

GSZ130421AF

GSZ130[36 & 48]3AC Release of 3 phase models with new 6 pole motor.

GSZ14**1AA Initial release of 14 SEER models.

GSZ130481AG
GSZ130483AE
GSZ130484AD

GSZ130[191,311] AD
GSZ130241BE
GSZ130251AC

GSZ130601AE Create new Motor 0131M00807 & Replace 0131M00061 with 0131M00807

Releas e of models with new 6 pole motor/fan combination.

Models wit h new 6 pole motor/fan combination. Changing from the c urrent four piece louver
assembly, to a two piece louver plus a corner post on Goodman and value series 26" and
29" chassis.

Releas e of two piece louver plus corner post on 26" and 29" chassis with compressor
changing from ZP36K5EPFV130 to ZP34K5EPFV130.

Replac ed Ranco revers ing valve 0151M00020 with SanHua 0151R00070 reversing valve .

Create new Motor & Replace 0131M00294 with 0131M00800

20

PRODUCT IDENTIFICATION

GSZ14

OODMAN SPLIT

G

Model/Rev Description

GSZ140(18-60)1KA
GSZ140491AA

GSZ140(18-30)1KB Energy guide update. PCBDM160 with new software.

Introduction of ready 15 14 SEER heat pumps to meet the 2015 energy efficiency
requirement .

R410A HEAT PUMP 14 SEER

Z-

Split System Heat Pumps

GSZ140301KC
GSZ140361KB

Migrating from copper to aluminum motors.

GSZ140[421,491]KB Motor ch ange on 3 & 3.5T 14 SEER & 2 & 2.5T 16 SEER. Incre ase blade gap.

GSZ140181KC
GSZ140361KC

GSZ140[241,301]KD
GSZ140[481,601]KB

GSZ140[241, 301]KE
GSZ140[481, 601]KC

GSZ140181KD

GSZ140[421, 491]KC

GSZ140241KF

GSZ140371AB

Refrigerant charge re duction.

New mod el re visions, GSZ140241KD, GSZ140301KD, GSZ140481KB and GSZ140601KB
will have the BOMs changed and have a lower refrigerant charge.

New model revisions to deplete current overstock of Ranco reversing valves

Change from copper wound motor to aluminum wound motor.

Refrigerant Charge Reduction

Equivalent motor with Aluminum Windings replacing Copper Windings.

Create new Motor 0131M00807 & Replace 0131M00061 with 0131M00807

GSZ140[481,601]KD

GSZ16

OODMAN SPLIT

G

R410A HEAT PUMP 16 SEER

Z-

Model/Rev Description

GSZ160[18-48]1BA Initial release of Goodman 16 S EER, 13 EER Heat Pumps with 9.0+ HSPF

GSZ1160601BA Initial release of Goodman 5 Ton 16 SEER, 13 EER Heat Pumps

GSZ160241BB
GSZ160301BB

GSZ160181BB 16 SEER 1.5T Heat Pumps, Remove Hard Start Kit

GSZ160181BC Equivalent motor with Aluminum W indings replacing Copper Windings.

GSZ160181BD
GSZ160[241, 301]BC
GSZ160[361, 421,481,601]BB

GSZ160[361, 481]BC Create new Motor 0131M00807 & Replace 0131M00061 with 0131M00807

Motor change on 3 & 3.5T 14 SEER & 2 & 2.5T 16 SEER. Increase blade gap.

Swit ching current Goodman 16SEER condensers and heat pumps with grille tops to louver
tops to be consistent with other Goodman units having louver-style top panels.

21

PRODUCT IDENTIFICATION

Split System Heat Pumps

SSZ14

PECIAL HIGH FEATUR E SPLIT

S

Model/Rev Description

SSZ140**1AA Initial release of Goodman 14 SEER Heat Pump R410A.

SSZ140**1AB Screw locations moved in the top panel, base pans, louvers, and control box covers.

SSZ140**1AC Broad Ocean Motors.

SSZ140181AC
SSZ140241AF
SSZ140301AD

SSZ140361AF
SSZ140[42-60]1AD

SSZ140241AG Smaller B1227315 reversing valve.

SSZ140[18, 30, 42-60]AE
SSZ140241AH
SSZ140361AG

SSZ140[18, 30, 42-60]AF
SSZ140241AJ
SSZ140361AH

SSZ140[18,30]1AH
SSZ140241AL
SSZ140361BB

SSZ140140[18, 30]1AJ
SSZ140[19, 25]1AC
SSZ140[31, 37]1AC
SSZ140241AM
SSZ140361BCC
SSZ140381AB
SSZ140140381AB
SSZ140[42-60]AH

SSZ140[18-60]1AD

SSZ140361AF
SSZ140[42-60]1AD

Discharge line mufflers added.

Added discharge line mufflers. Replaced TXV and compensator with flowrator and
accumulator.

Sanhua (RANCO) reversing valves.

Introduction of heat pumps with accumulators, crankcase heaters, and upgraded defrost
control.

Changed from four-piece louver ass embly to a two piece louver assembly. Added a corner
post on Goodman 26" and 29" chassis.

Revision made for design improvement.

Relocation of low pressure switch from liquid line to suction line as a compressor
safeguard to prevent low pressure from entering.

Chassis size reduction from large to medium.

R410A HEAT PUMP 14 SEER

Z-

SSZ140381AA Initial release of 35" chassis with 6-channel flowrator and ZP29K5 compressor.

SSZ140[18-30]1BA Updated ratings and agency information.

SSZ140241BB
SSZ140251AE

SSZ140361BE
SSZ140371AE
SSZ140[421,481,601]AK

22

Change from copper wound motor to aluminum wound motor.

Create new Motor 0131M00807 & Replace 0131M00061 with 0131M00807

PRODUCT IDENTIFICATION

Split System Heat Pumps

SSZ16

PECIAL HIGH FEATURE SPLIT

S

Model/Rev Description

SSZ160**1AA Initial releas e of Goodman 16 SEER Heat Pump R410A.

SSZ160**1AB Screw locations moved in the top panel, base pans, louvers, and control box covers.

SSZ160**1AC

SSZ16[024-48]1AC
SSZ160601AD

SSZ160361AF
SSZ160[42-60]1AD

SSZ160241AF
SSZ160[36, 48]1AD
SSZ160601AE

SSZ160241AF
SSZ160[36-48]1AE
SSZ160601BA

SSZ160241AH

Broad Ocean Motor. Updated muffler and standardized TXV. Compensator using ASZ18
SEER weldment to the SSZ160601AC.

Discharge line mufflers added.

Added discharge line mufflers. Replaced TXV and compensator with flowrator and
accumulator.

Sanhua (RANCO) reversing valves.

Introduction of heat pumps with accumulators, crankcase heaters, and upgraded defrost
control.

Changed from four-piece louver assembly to a two piece louver assembly. Added a corner
post on Goodman 26" and 29" chassis.

R410A HEAT PUMP 16 SEER

Z-

SSZ160601BB Ultratech® compressor

SSZ160241AK Change from copper wound motor to aluminum wound motor.

23

PRODUCT IDENTIFICATION

ging

Split System Condensers

GSX13

OODMAN BRAND SPLIT

G

Model/Rev Description

GSX130**1AA Initial release of Goodman 13 SEER R-410A Condensers with Regal Beloit motors

GSX13061[1/3/4]AA

GSX130363AB
GSX130484AB
GSX130603AB
GSX130604AB

GSX130**1AB Broad Ocean motors.

GSX130483AB 3 Phase model with new 6 pole motor.

GSX130483AC

GSX130181EA
GSX130181EB

GSX130**1BA
GSX130**3AA
GSX130**4AA

GSX130301BB Replaced fan mot or to -294 and fan blade to -18 on GSX130301BA models.

GSX130[42, 48]1BC
GSX130301BC
GSX130601BB

GSX130[42, 48]1BB New 6 pole motor/fan combination.

Introduction of Goodman 13 SEER R-410A Condensers that supplement our current 5 ton
models.

Changed from the current four piece louver assembly, to a two piece louver plus a corner
post on Goodman and value series 26" and 29" chassis.

3 phase model chan
plus a corner post on Goodman and value series 26" and 29" chassis.

Introduction of 1.5 ton condenser with Rechi Compressor.

Introduction of Goodman 13 SEER R-410A Condensers using SmartCoil® coils. Units will
have new louvers because units are smaller. Piston s ize c hange. Other components
unchanged.

Changed from the current four piece louver assembly, to a two piece louver plus a corner
post on Goodman and value series 26" and 29" chassis.

R410A CONDENSERS 13 SEER

X-

from the current four piece louver ass embly, to a two piece louver

GSX130181CA Rotary c ompressor.

GSX130421CA
GSX130481CA

GSX130361CA Replaced current compressor with compressor ZP29K5EPFV130.

GSX130[18-36]1DA Condenser conversion to 23" chassis for the 1.5 - 3 ton models.

GSX130181ED

GSX13031DB

GSX130361EA Introduction of Goodman 3 ton conversion from 29" chassis to 26".

GSX130361EB

GSX130371AA Improved decibel ratings for Canadian market.

GSX130181EF Change from motor 0131M00276 to 0131M00593 on units GSX130181 & VSX130181

GSX130363AD Change from copper wound motor to aluminum wound mot or.

GSX130241EC
GSX130301BF

Introduction of Goodman 3.5 and 4 ton 13 SEER condensing units wit h reciprocating
compressor.

Changed from a 4 leg Rechi Compressor 50N382XV-ZAKM to 3 Leg Rechi Compressor
50N382XV-5AKM. Changed Suction line Assy from 0210R01608 to 0210R01406. This
minor

Improved coil circuit assembly for greater capac ity/efficiency and a new discharge tubing
assembly.

Changed from the current four piece louver assembly, to a two piece louver plus a corner
post on Goodman and value series 26" and 29" chassis.

Create new Motor & Replace 0131M00294 with 0131M00800

*GSX13 CONTINUED ON THE NEXT PAGE

24

PRODUCT IDENTIFICATION

Split System Condensers

GSX13

OODMAN BRAND SPLIT

G

Model/Rev Description

GSX130611AC Create new Motor 0131M00807 & Replace 0131M00061 with 0131M00807

GSX130241ED
GSX130[301,601]B G
GSX130361EE
GSX130[421,481]B F

Fact ory Refrigerant Charge Optimization

R410A CONDENSERS 13 SEER

X-

25

PRODUCT IDENTIFICATION

GSX14

OODMAN BRAND SPLIT

G

Model/Rev Description

GSX14**1AA Introduction of Goodman 14 SEER R-410A models.

GSX140[18-19]1KA
GSX140[24-25]1KA
GSX140[30-31]1KA
GSX140[36-37]1KA
GSX140[42, 48, 60]1KA

GSX140241KB Replaced 1/12hp fan motor with 1/ 8hp fan motor.

GSX140311AA Introduction of 12.2 EER air conditioning units .

GSX140[30-36,42]1KB Migrating from copper to aluminum motors .

GSX140251LA

GSX140241LB

GSX140191KB

GSX140361KC
GSX140371KB
GSX140421KC
GSX140 [431,481,601]KB

Goodman
condenser 5mm architecture with updated scroll c ompressors.

Changed compress or from K5 to K6, Changed coil slab from 25" tall to 30" tall, Changed
louvers from 24" tall to 29" tall

Create minor revisions of the new Rechi 2.0T units to cons ume the excess inventory of
19P fan motor

Remove HS Kit from Control Panels of condenser units with updated
ZP14K6E scroll compressors.

Refrigerant charge reduct ion.

plit X 14 Seer Condensing units. Introducing the Goodman 14 SEER standard

S

R410A CONDENSERS 14 SEER

X-

Split System Condensers

GSX140311KB
GSX140371KC
GSX140431KC

GSX140[481,601]K C Create new Motor 0131M00807 & Replace 0131M00061 with 0131M00807

Change from copper wound motor to aluminum wound motor.

26

PRODUCT IDENTIFICATION

Split System Condensers

GSX16

GOODMAN BRAND SPLIT X-R410A CONDENSERS 15 AND 16 SEER

Model/Rev Description

GSX160**1FA Initial release of the Goodman 16 SEER R410A Condensers.

GSX160611FA New high capacity 5 ton model that will supplement the c urrent GSX160601 models.

GSX160[18-61]1FB Minor revision for GSX16s to inc lude ball valves 0151R00045 and 0151R00046.

GSX160601GA 7mm coils.

GSX160(48/60/61)1FB Ball valve change from 0151R00046 to 0151R00081

GSX160(18/24/30/36)1FC Migrating from c opper to aluminum motors.

GSX160(18/24/30/36)1FC
GSX160(42/48/60/61)1FC

GSX160311AA
GSX160371AA

GSX160[241, 301, 601]FE

GSX160[311,371]AB

GSX160[181,361,421,481,611]FE
GSX160[241,301]FF
GSX160[311,371]AC

GSX160[481,611]FF Create new Motor 0131M00807 & Replace 0131M00061 with 0131M00807

Ball Valve Re-work 0151R00045 & 0151R00046

Initial release creates and launches 2 new SKUs in the 16 SEER single-stage AC
product line.

Refrigerant charge reduction.

Equivalent motor with Aluminum Windings replacing Copper Windings.

Switching current Goodman 16SEER condensers and heat pumps with grille tops to
louver tops to be consistent with other Goodman units having louver-style top
panels.

27

PRODUCT IDENTIFICATION

Revisi

Split System Condensers

SSX14

PECIAL HIGH FEATURE SPLIT

S

Model/Rev Description

SSX140**1AA Initial release of Goodman 14 SEER AC 410A.

SSX140**1AB

SSX14018, 241AC Revised condenser coils by removing [1] haripin.

SSX140301AC Model contains the Broad Ocean motor 0131M00060

SSX14036-601AC Models contain the Broad Ocean motor 0131M00061

SSX14030,361AD Revised condenser coils by removing [1] haripin.

SSX140421AD Introduces SSX140421A in 29" base pan

SSX140[18-24]1BA
SSX140[30-36]1BA
SSX140421CA

SSX140[18-36]1BC
SSX140421CC

SSX140[18-36]1BD
SSX140421CD
SSX140481BB
SSX140601AG

SSX140421BA

ons have screw locations moved in the top panel, base pans, louvers, and control

box covers.

Converts 1.5 - 3.5 ton condenser coil tubes from 3/8" tube diameter to 5mm tube
diameter.

Changing from the current four piece louver assembly, to a two piece louver plus a corner
post on Goodman and value series 26" and 29" c hassis.

Revision made for design improvement.

Revision for SSZ140421B* in 29 base pan and it will the reduce the unit charge from 180
oz. to 170 oz. and replace the 1/4 hp outdoor unit motor with 1/6 hp motor.

R410A CONDENSERS 14 SEER

X-

SSX14030-421AE Revised condenser coils by removing [1] haripin.

SSX140[18-48]1BA
SSX14042-481CA

SSX140[18-36]1BB
SSX140421CB
SSX140601AF

Introduction of Goodman 14 SEER R-410A Condensers with SmartCoil® Coils.

Relocation of low pressure switch from liquid line to suction line as a compressor
safeguard to prevent low pressure from entering.

28

PRODUCT IDENTIFICATION

Split System Condensers

SSX16

PECIAL HIGH FEATURE SPLIT

S

Model/Rev Description

SSX160**1AA Introduces Goodman 16 SEER AC 410A

SSX160**1AB

SSX160**1AB
SSX160591AA

SSX160[24, 36, 48]1BA
SSX160[30 & 42]1AA

SSX160[24, 36]1BC
SSX160[30, 42]1AB

SSX160601BA ZPS49K compressor.

SSX160[24,36,60]1BB

New revisions have screw locations moved in the top panel, base pans, louvers, and
control box covers.

New revisions have screw locations moved in the top panel, base pans, louvers, and
control box covers.

SmartCoil® coils.

Changing from the current four piece louver assembly, to a two piece louver plus a corner
post on Goodman and value series 26" and 29" c hassis.

Relocation of low pressure switch from liquid line to suction line as a compressor
safeguard to prevent low pressure from entering.

R410A CONDENSER 16 SEER

X-

DSX16

ELUXE SPLIT

D

Model/Rev Description

DSX160**1AA Initial release of Goodman 2-stage, 16 SEER condensing units with R-410A.

R410A HEAT PUMP 16 SEER

X-

DSX160[24, 36]1BA Conversion of 2 & 3 ton models to SmartCoil® Coils.

DSX160241BC Introduces Ultratech® 2.0 compressor changes.

DSX18

ELUXE SPLIT

D

Model/Rev Description

DSXC18**1AA Intial release of 2-stage condensing units with R-410A communicating models.

DSXC18036AB
DSXC18048AB
DSXC18060AB

DSXC18036AC

DSXC180[48-60]AC Intial release of Ultratech 2.0 to communicating condensing units

Updated wiring diagram with notes for communicating condensing units.

Replaced existing compressor ZPS20K4EPFV230 to ZPS20K5EPFV130 & existing
compressor ZPS30K4EPFV230 to ZPS30K5EPFV130 for communicating condensing
units.

R410A HEAT PUMP 18 SEER

X-

29

PRODUCT IDENTIFICATION

Split System Condensers

VSX13

ALUE SPLIT

V

Model/Rev Description

VSX130[18-48]1AA Introduces Value Line 13 SEER condensing units with R-410A.

VSX130611AA Supplements the 5 ton model GSX130611 to enhance performance.

VSX130301AB Replaced fan motor to -294 and fan blade to -18 on the VSX130301AA.

VSX130301AC
VSX130[42-48]1AC

VSX130[42-48]1AB Replaced with 6-pole motor and Copeland compressor.

VSX130181BA Rotary compressor.

VSX130181EA
VSX130181EB

VSX130181ED

VSX130241BA

VSX130361BA Replaced current compressor with compressor ZP29K5EPFV130.

VSX130361EB

Changed from current four piece louver assembly to a two piece louver assembly plus a
corner post on Goodman and value series 26" and 29" chassis.

Introduction of 1.5 ton condenser with Rechi Compressor.

Changed 4-leg Rechi Compressor 50N382XV-ZAKM to 3-Leg Rechi Compressor
50N382XV-5AKM. Changed Suction line Assy from 0210R01608 to 0210R01406.

2.0 ton condensing units with aluminum coils, aluminum manifolds w/existing scroll
compressor.

Changed from current four piece louver assembly, to a two piece louver plus a corner post
on Goodman and value series 26" and 29" chassis.

R410A CONDENSER 13 SEER

X-

VSX130601BA Condensing units with SmartCoil® coils.

VSX130601BB

VSX130421BA
VSX130481BA

VSX130[18-36]1DA 3.5 and 4 ton 13 SEER Condensers conversion to 23" chassis for the 1.5 - 3 ton models.

VSX130301DB

VSX130301EA

VSX130241EA

VSX130371AA 2.5 13 SEER Condensers with improved decibel ratings for Canadian market.

VSX130241EB Compressor wires yellow, red and black changing from 40" to 45".

VSX130181EF Change from motor 0131M00276 to 0131M00593 on units GSX130181 & VSX130181

VSX130241ED
VSX130301AF

VSX130611AC Create new Motor 0131M00807 & Replace 0131M00061 with 0131M00807

Changing from the current four piece louver assembly, to a two piece louver plus a corner
post on Goodman and value series 26" and 29" chassis.

3.5 and 4 ton 13 SEER condensing units with reciprocating compressor.

2.5 13 SEER Condensers with improved coil circuit assembly for greater
capacity/efficiency and the creation of a new discharge tubing assembly.

3 Ton 13 SEER Condensers release of 3 ton models converting from 29" chassis to 26"
chassis.

2.0 Ton 13 SEER Condensers with Rechi Compressor, converting 23" chassis to 26"
chassis

Create new Motor & Replace 0131M00294 with 0131M00800

VSX13[241,361]EE
VSX130301AG
VSX130[421,481]AF
VSX130601BE

30

Factory Refrigerant Charge Optimization

PRODUCT IDENTIFICATION

Split System Condensers

VSX14

ALUE SPLIT

V

Model/Rev Description

VSX140[18-19]1AA
VSX140[24-25]1AA
VSX140[30-31]1AA
VSX140[36-37]1AA
VSX140[42, 48, 60]1AA

VSX140241AB Replaced 1/12hp fan motor with 1/8hp fan motor.

VSX140251BA

VSX140241BB

VSX140191KB

Introducing the 14 SEER standard condenser 5mm architecture with updated scroll
compressors.

Changed compress or from K5 to K6, Changed coil slab from 25" tall to 30" tall, Changed
louvers from 24" tall to 29" tall

Create minor revisions of the new Rechi 2.0T units to consume the excess inventory of
19P fan motor

Remove HS Kit from Control Panels of condenser units with updated

R410A CONDENSER 13 SEER

X-

ZP14K6E scroll compressors.

VSX140[301, 311]AB
VSX140[361-431]AC

VSX140301BA

Change from copper wound motor to aluminum wound motor.

Copeland to Rechi 2.5 T update suct tube, fix liq line assy, fix wiring diagram, change
charge qty .

VSX140[481,601]AC Create new Motor 0131M00807 & Replace 0131M00061 with 0131M00807

31

PRODUCT IDENTIFICATION

Split System Condensers

ANX13

MANA® BRAND SPLIT SYSTEM

A

Model/Rev Description

ANX130[18-24]1AA

ANX130[30-61]1AA Initial release.

ANX130241BA Convert ANX13/14 1.5 and 2 ton models to Rechi compressors.

ANX130[301-601]AD Refrigerant Charge Reduction

Launch of the Tier 1.5T & 2.0T models. Launched with 26" chasis to accommodate
horizontal style louvers.

N-

BASE

R410A CONDENSERS 13 SEER

X-

ANX130241BB
ANX130301AE

ANX130611AD Create new Motor 0131M00807 & Replace 0131M00061 with 0131M00807

ANX130241BC
ANX130301AF
ANX130[361,421,481,601]AE

Create new Motor & Replace 0131M00294 with 0131M00800

Factory Refrigerant Charge Optimization

ANX14

MANA® BRAND SPLIT SYSTEM

A

Model/Rev Description

ANX140[18-60]1AA

ANX140241AB Replaces 1/12hp fan motor with 1/8hp fan motor.

ANX140431AA Introduction of ready 15, 12.2 EER air conditioning units.

ANX140251BA

ANX140191AB

ANX140181BA
ANX140241BA

Introducing the Amana
updated scroll compressors.

Changed compress or from K5 to K6, Changed coil slab from 25" tall to 30" tall, Changed
louvers from 24" tall to 29" tall

Remove HS Kit from Control Panels of condenser units with updated
ZP14K6E scroll compressors.

Convert ANX13/14 1.5 and 2 ton models to Rechi compressors.

BASE

N-

®

Brand 14 SEER standard condenser 5mm architecture with

R410A CONDENSERS 14 SEER

X-

ANX140[301-371]AB
ANX140[421,431]AB

ANX140481AB
ANX140601AB

ANX140[361,371]AC
ANX140[421,431]AC

ANX140[481,601]AC Create new Motor 0131M00807 & Replace 0131M00061 with 0131M00807

32

Change from copper wound motor to aluminum wound motor.

Refrigerant Charge Reduction

Refrigerant Charge Reduction

PRODUCT IDENTIFICATION

Split System Condensers

ASX13

MANA® BRAND SPLIT

A

Model/Rev Description

ASX130**1AA

ASX130611AA

ASX130611AA

ASX130**1BA

ASX130**1CB

ASX130181DA Initial release of models with new 266 fan motor; Low pressure switch removed.

ASX130181DB
ASX130[24-48]1CD
ASX130601CC

ASX130[24-48]1CC
ASX130601CB

ASX130361DA Release of 3 ton models with a 26" chassis.

Initial release new models of Amana

Initial release of new models of Amana® Brand Deluxe 13 SEER AC R410A conditioners;
replaced ASX130601* models.

®

Introduction of Amana
5 ton models .

Initial release of models using SmartCoil
size changed; other components unchanged.

Relocation of low pressure switch from liquid line to suction line. Compressor safeguard to
prevent low pressure from entering.

Low pressure switch 013M00082 added; updated wiring diagram.

Initial release of models with single speed PSC motors; Does not c ontain a low pressure
switch, low ambient temperature switch and relay.

brand 13 SEER R-410A Condensers that supplement our current

CONDENSERS 13 SEER

X-

®

Brand Deluxe 13 SEER AC R410A conditioners.

®

coils. Smaller units with new louvers. Piston

ASX130361DE Refrigerant Charge Reduction

ASX130[421,481]CF
ASX130601CE
ASX130611AC

ASX130[241,301,601]CF
ASX130361DF
ASX130[421,481]CG

Create new Motor 0131M00807 & Replace 0131M00061 with 0131M00807

Factory Refrigerant Charge Optimization

33

PRODUCT IDENTIFICATION

MANA® BRAND SPLIT

A

Model/Rev Description

ASX14

CONDENSERS 14 SEER

X-

Split System Condensers

ASX140**1AA

ASX140**1AB Screw locations moved in the top panel, base pans, louvers, and control box covers.

ASX140**1AC Horizontal style louvers.

ASX14018-361AD Revised condenser coils by removing (1) hairpin. R410A quantity reduced by 6 ounces.

ASX140421AD Initial release of model ASX140421A in 29" base pan

ASX140421BA

ASX14018-361BA
ASX140[42-48]1CA

ASX140[18-30]1BA
ASX140[42-48]1CA

ASX140[18-36]1CB
ASX140421DB
ASX140601BB

ASX140[24-36]1CC
ASX140421DC
ASX140481CB
ASX140601BC

Initial release of models of Amana

29" platform. Unit charge reduc ed from 180 oz. to 170 oz . 1/4 hp outdoor unit motor
replaced with 1/6 hp motor.

1.5 - 3.5 ton condenser coil tubes converted from 3/8" tube diameter to 5mm tube
diameter.

Initial release of models using SmartCoil® coils.

Low press ure switch relocated from liquid line to suc tion line as a c ompressor safeguard
to prevent low pres sure from ent ering.

Initial release of models with single speed PSC motors; Does not contain a low pressure
switch, low ambient temperature switch and relay.

®

Brand Deluxe 14 SEER AC R410A conditioners.

ASX140181DB
ASX140[24-36]1CD
ASX140421DD
ASX140481CC
ASX140601BD

ASX140181DD
ASX140[24-48]1CE
ASX140421DE
ASX140601BE

ASX140181DA Initial release of models with new 266 fan motor; Low pressure switch removed.

ASX140[18-19, 24-25]1KA
ASX140[30-31, 36-37]1KA
ASX140[42, 48, 60]1KA

ASX140241KB 1/8 hp fan motor replaced 1/12 hp fan motor.

ASX140241LA ASX140251LA

Low press ure switch added.

Design improvement.

Initial release of 5mm architecture with updated scroll compressors.

Changed compressor from K5 to K6, Changed coil s lab from 25" tall to 30" tall, Changed
louvers from 24" tall to 29" tall

*ASX14 CONTINUED ON THE NEXT PAGE

34

PRODUCT IDENTIFICATION

MANA® BRAND SPLIT

A

Model/Rev Description

ASX14

CONDENSERS 14 SEER

X-

Split System Condensers

ASX140191KB

ASX140241LA

ASX 140[301-431]KB Change from copper wound motor to aluminum wound motor.

ASX 140[481, 601]KB Refrigerant Charge Reduction

ASX 140[361,371,421,431]KC
ASX160[241,301]FC

ASX140[481,601]KC Create new Motor 0131M00807 & Replace 0131M00061 with 0131M00807

Remove HS Kit from Control Panels of condenser units with updated
ZP14K6E scroll compressors.

Change compressor from K6 to K5 on ASX140241 and DX14SA0241

Refrigerant Charge Reduction

35

PRODUCT IDENTIFICATION

Split System Condensers

ASX16

MANA® BRAND SPLIT

A

Model/Rev Description

ASX160**1AB Screw locations moved in the top panel, base pans, louvers, and control box covers.

ASX160**1AC Horizontal style louvers.

ASX160**1FA Single speed outdoor fan.

ASX160611FA High capacity 5 ton models that supplement the current ASX160601 models.

ASX160611GA 7mm coils.

ASX160[24-60]1BA Wiring diagram updated with notes.

ASX160[24/36]1CA

ASX160(48/60/61)1FB Ball valve change from 0151R00046 to 0151R00081

ASX160311AA
ASX160371AA

ASX160[181-421]FB Change from copper wound motor to aluminum wound motor.

ASX160601FC Refrigerant charge reduction

ASX160[311,371]AB Equivalent motor with Aluminum W indings replac ing Copper Windings.

Initial releas e of Conversion of 2 & 3 ton models to SmartCoil

Initial releas e creates and launches 2 new SKUs in the 16 SEER single-stage AC product
line.

CONDENSERS 16 SEER

X-

®

coils.

ASX160[481,611]FC Create new Motor 0131M00807 & Replace 0131M00061 with 0131M00807

ASX18

MANA® BRAND SPLIT

A

Model/Rev Description

ASX180**1AB

Initial release new models of Amana

CONDENSERS 18 SEER

X-

®

Brand Deluxe 18 SEER AC R410A conditioners.

36

PRODUCT IDENTIFICATION

ACNF

SINGLE PIECE AIR HANDLER CEILING MOUNT N-UNCASED FLOWATER

A-

Model/Rev Description

ACNF****1AA Release of all models of 13 SEER Dayton uncased air handlers.

Air Handlers

ACNF****16AA

ACNF****1AB Drain pan mat erial change.

ACNF****1BA Current wavey fin design with replaced new louvered fin design

ACNF****16DA

ACNF180[51-81]6DB
ACNF240[51-81]6DB
ACNF241016DB
ACNF300[51-81]6DB
ACNF301016DB

ACNF250[01/05/06/08/] 16AA
ACNF251016AA
ACNF310[01/05/06/08/10]16AA

ACNF180016DC
ACNF18[0516,0616,0816]DD
ACNF240016DC
ACNF24[0516,0616,0816,1016]DD
ACNF25[0016,0516,0616,0816,1016]AB
ACNF300016DC
ACNF30[0516,0616,0816,1016]DD
ACNF31[0016,0516,0616,0816,1016]AB

Release of all models of 13 SEER Dayton uncased air handlers suitable for use with R-22
& R-410A.

Converted copper coils, manifolds, hairpins, flowrators, 90° flowrator stub to aluminum.
Conversion of copper 3/8" return bends to aluminum 5/16" return bends.

UL1995 heater change.

Change in the air handler design. The motor changed from an existing P SC to a constant
torque motor.

Creation of new ACNF Minor Rev models to produce coils with non acid etched fins.

ADPF

SINGLE PIECE DOWNFLO W AIR HANDLER PSC MOTOR PAINTE D FLOW ATER

A-

Model/Rev Description

ADPF****16AA Introduction of new 13 SEER Air Handler Models suitable for use with R-22 and R-410A.

ADPF364216AB

ADPF486016AB

ADPF304216AC

ADPF****1BA Replacement of all ARPFcoils using wavy fin with louver enhanced fin.

ADPF182416CA
ADPF486016CA

Replacement of the current s pot welded blower housing with the same c inched or crimped
design used on the 80% furnace line.

Replacement of the current s pot welded blower housing with the same c inched or crimped
design used on the 80% furnace line.

Replacement of the current s pot welded blower housing with the same c inched or crimped
design used on the 80% furnace line.

Replacement of existing air handler copper coils and other associated parts with
aluminum components.

37

PRODUCT IDENTIFICATION

Air Handlers

AEP F

SINGLE PIECE E-MULTI-POSITION VARIABLE SPEED PAINTE D FLOW ATER

A-

Model/Rev Description

AEPF****16AA Introducation of new 13 SEER Air Handler Models suitable for use with R-22 and R-410A.

AEPF****16BA Introduction of new models adding lower kW hit kits on the S&R plate.

AEPF****16BB

AEPF****16CA Replacement of all ARPFcoils using wavy fin with louver enhanced fin.

AEPF****1BA Introduction of R-22 Only Air Handlers.

AEPF313716AA Introduction of 3-Ton Air Handler units with 3-row coil.

Replacement of the current s pot welded blower housing with the same c inched or crimped
design used on the 80% furnace line.

38

PRODUCT IDENTIFICATION

Air Handlers

ARUF

SINGLE PIECE AIR HANDLER R-MULTI-POSITION PSC MOTOR UNPAINTED FLOW RATOR

A-

Model/Rev Description

ARUF172916AA
A24-00-2RCA

ARUF****16AA Introduction of new 13 SEER Air Handler Models suitable for use with R-22 and R-410A

ARUF364216AB
ARUF486016AB
ARUF364216AC

ARUF****16BA Replaced wavy fin with louver enhanced fin.

ARUF****1BA Introducation of R-22 Only Air Handlers.

ARUF****16CA

ARUF***14A A
ARUF***14A B

ARUF18B14AB
ARUF24B14BA
ARUF36C14BA
ARUF42C14AB

Introduction of new Air Handler Models with all aluminum evaporator coils. Conversion
includes coils, manifold, hairpin, flowrators, 3/8" return bend to 5/16" aluminum return
bends.

Replaced current spot welded blower housing with cinched/crimped design used on the
80% furnace line.

Replaced existing air handler copper coils and other associated parts with aluminum
components.

Initial release of the redesigned air handlers manufactured at the Houston furnace facility.

R-410A only. 2 & 3 ton coil replacement. 2 ton replaced w/3 row/16" tall; 3 ton replaced
with 18" tall coil. 3.5 ton model blower motor changes from 10X8 to 10X10.

ARUF24B14BB Changed 16 Tall, 3 Row, 6 Cir Coil Assembly to 14 Tall, 3 Row , 6 Cir Coil Assembly.

ARUF24B14CA Initial release of model to meet AHRI requirements

ARUF30C14BA ARUF30B, 17.5 inch wide models converted to an ARUF30C, 21 inch wide model.

ARUF36C14BB
ARUF42C14AC

ARUF36C14BC
ARUF30B14AC
ARUF30C14BB
ARUF42C14AD
ARUF(48/60)D14AC

ARUF(37/43/49)C14AA

ARUF(37/43/49)D14AA Initial Release. D53 Cabinet (for 7mm 14 SEER Heat Pumps).

ARUF(47/61)D14AA

The aluminum models changes the RBs, COs, and coil slabs to 9mm braze joints.

Serial plate changes

Initial release of new ready 2015 Air Handler Models that meet the 2015 energy efficiency
levels (for 7mm 14 SEER Heat Pumps).

Initial release of new ready 2015 Air Handler Models that meet the 2015 energy efficiency
levels (for 7mm 14 SEER Heat Pumps).

ARPF

SINGLE PIECE AIR HANDLER R-MULTI-POSITION PSC MOTOR PAINTED FLOW RATER

A-

Model/Rev Description

ARPF364216AB
ARPF486016AB

Replacement of the current spot welded blower housing with the same cinched or crimped
design used on the 80% furnace line.

ARPF****16BA Wavy fin replaced with louver enhanced fin.

ARPF****1BA Introduction of R-22 Only Air Handlers.

ARPF****16CA Replaced air handler copper coils and other associated parts with aluminum components.

39

PRODUCT IDENTIFICATION

SINGLE PIECE AIR HANDLER R-MULTI-POSITION PSC MOTOR PAINTE D FLOW RATER TXV

A-

Model/Rev Description

ARPT***14AA Initial release of the new air handlers.

ARPT***14AB Initial release of the air handlers manufactured at the Houston furnace facility.

Air Handlers

ARPT - R410A ONLY

ARPT[18-36]B14AC
ARPT[36-60]D14AC

Serial plate changes.

ASP F

SINGLE PIECE AIR HANDLER S-MULTI-POSITION EEM MOTOR PAINTE D FLOW RATOR

A-

Model/Rev Description

ASPF****16AA Introduction of new ASPF Air Handlers.

Initial releas e of modified ASPF control scheme, to ensure blower operation during and

ASPF****16BA

ASPF****16CA

ASPF****16DA

ASPF****16EA

after call for heat on units with heat kits and replacing wavy fin with louver enhanced fin on
coil.
Replaced existing air handler copper coils and other associate departs with aluminum
components.

Initial releas e of models with Emerson SelecTech motor. Replaced Regal-Beloit X-13
motor.

Replaced of exis ting air handler copper coils and other associated parts with aluminum
components and replaced Regal-Beloit X-13 motor with Emerson SelecTech motor.

ASPT

SINGLE PIECE AIR HANDLER S-MULTI-POSITION EEM MO TOR PAINTE D TXV

A-

Model/Rev Description

ASPT(24/36/48/60)*14 Introduction of new generation ASPT air handlers.

ASPT36C14AB
ASPT(48/60)D14AB
ASPT48D14AC

ASPT24B14AC
ASPT30C14AB
ASPT36C14AC

ASPT(24/36)B14AD
ASPT30C14AC
ASPT(42-48)C14AB

ASPT(42-48)C14AA

ASPT42D14AB
ASPT48D14AD
ASPT60D14AC

ASPT(25/29/37)B14AA
ASPT(37/47/59)C14AA
ASPT(47/49/61)D14AA

9mm return bend coil changes to new generation of ASPT air handlers.

Programmed Broad Ocean Motor. The supplier can program the motor instead of furnace
plant, thus eliminating any programming installing issues. The programmed label will
provide by supplier.

X13 Motor IP changed to IGBT (Broad Ocean).

Initial release of models with 2+ 2 coil slab assy. These models are required to meet
higher tonnage rating in Cabinet.

Nidec Pre-programmed Motor. Nidec motor can be programmed by the supplier instead of
programming at the furnace plant, thus eliminating any programming installing issues.

Initial release of models with a 2 slab, low airflow resistant coil with a fixed speed ECM.
53" cabinet size. ASPT42C and ASPT48C 2+2 models discontinued.

40

PRODUCT IDENTIFICATION

Air Handlers

ASUF

SINGLE PIECE AIR HANDLER S-ENERGY EFFICIENT MOTOR UNPAINTED FLOW RATOR

A-

Model/Rev Description

ASUF29B14AA
ASUF39C14AA

ASUF49C14AA
ASUF59D14AA

ASUF49C14AB
ASUF59D14AB

ASUF59D14AC Four row, piston, 9 mm return bend coil.

ASUF59D14AD Nidec Pre-programmed Motor. Nidec motor can be programmed by the supplier.

ASUF29B14AB
ASUF39C14AB
ASUF49C14AC
ASUF29B14AC
ASUF39C14AC
ASUF49C14AD

Initial releas e of models in the mid-range efficiency air handler. Incorporates smart frame
chassis with EEM (X-13) style motors and piston type flowrators.

Initial releas e of mid-range efficiency air handler with X-13 motor & fixed orifice flowrator.

9 mm return bend coil.

Programmed Broad Ocean Motor. The supplier can program the motor.

Changed from X13 Motor IP to IGBT (Broad Ocean).

MBR

ODULAR BLOWER AIR HANDLER R-MULTI-POSITION PSC MOTOR

M

Model/Rev Description

MBR****AA-1AA Initial release of a module blower with PSC blower motor.

MBR****AA-1AB A quality improvement to use 0.75" Quiet Flex Insulation.

MBR****AA-1AC Release of MBR/MBVC Models(Minor Revisions) for 11th St Plant. Dayton to Houston

MBE

ODULAR BLOWER AIR HANDLER E-MULTI-POSITION VARIABLE-SPEED

M

Model/Rev Description

MBE****AA-1AA Introduction of a module blower with variable speed blower motor.

MBE****AA-1BA Introduction of new models adding lower kW hit kits on the S&R plate.

41

PRODUCT IDENTIFICATION

-

AWUF

SINGLE PIECE AIR HANDLER WALL MOUNT UNPAINTED FLOW RATOR

A-

Model/Rev Description

AWUF****16AA
AWUF370**16AA

AWUF3005-101AA Initial release of modelw with Burr Oak Louvered Fin coil.

Introduction of a 13 SEER Dayton wall mount air handlers suitable for use with R-22 and R
410A. Coil adapters have been added to coil circuits.

Air Handlers

AWUF****1BA
AWUF****16BA

AWUF(18/24/30)0316BA Introduction of 3 kW heater in the AWUF air handlers.

AWUF310516AA
AWUF310816AA
AWUF321016AA

AWUF300(3/5/8/10)16BB
AWUF360(5/8/10)16BB

AWUF18F(3/5/8)16AA
AWUF24F(1/3/5/8)16AA
AWUF30F(1/5/8)16AA
AWUF31F(5/8)16AA
AWUF32F116AA
AWUF36F(1/5/8)16AA
AWUF37(1/5/8)16AA

AWUF180(3/5/8)16BB
AWUF240(3/5/8/10)16BB
AWUF300(5/8/10)16BC
AWUF310(5/8/10)16AB
AWUF360(5/8/10)16BC
AWUF370(5/8/10)16BB

AWUF19**16A*
AWUF25**16A*

AWUF180[316,516,816]BC
AWUF190[316,516,816]AB
AWUF240[316,516,816]BC
AWUF241016BC
AWUF250[316,516,816]AB
AWUF251016AB
AWUF300[516,816]BD
AWUF301016BD
AWUF310[516,816]AC
AWUF321016AC
AWUF360[516,816]BD
AWUF361016BD
AWUF370[516,816]BC
AWUF371016BC

Changed from copper tube hairpin to aluminum tube hairpin. Aluminum manifolds and
flowrators are purchased parts.

Introduction of higher 14 SEER AWUF series air-handlers.

Replaced 16x20x1 with 18x20x1 filter.

Drain pan water sensor switch added.

Revised for the UL1995 heater changes.

Introduction of 14 SEER Dayton small chassis wall mount air handlers with fixed speed
X13 Stylemotor to match the 1.5 and 2.0 ton AC, AC+EER, and HP models with factory
installed heat from 3 kW to 10 kW.

Release gasket and caps to seal leak. With this modification we will able to meet 2% at 1
inch static leak and 1.4% leak rate at 0.5 inch static. Modified all current AWUF units to
pass current air leak rate.

42

PRODUCT IDENTIFICATION

CAPF

INDOOR C OIL A-UPFLOW/DOWNFLOW PAINTE D FLOW RATOR

C-

Model/Rev Description

CAPF*****6AA Initial release of CAPF Dayton Upflow/Downflow coils.

CAPF*****6BA Burr Oak Louvered Fin released in place of the Wavy Fin.

CAPF36***CA Redesigned for performance improvement from 2 row to 3 row.

CAPF*****6DA Replaced exis ting copper coils and other associated parts with aluminum components.

CAPF*****6DB Drain pan material changed.

CAPF1824A6DC
CAPF1824B6DC
CAPF1824C6DC
CAPF3030A6DC
CAPF3030B6DC
CAPF3030C6DC
CAPF3030D6DC
CAPF3131B6DC
CAPF3131C6DC
CAPF3137B6AB
CAPF3636A6DC
CAPF3636B6DC
CAPF3636C6DC
CAPF3636D6DC
CAPF3642C6DC
CAPF3642D6DC
CAPF3743C6DC
CAPF3743D6DC
CAPF4860C6DC
CAPF4860D6DC
CAPF4961C6DC
CAPF4961D6DC

Redesign the wrapper for the CAPF to provide increased ease of installation.

Coils

CAPT

INDOOR

C-

Model/Rev Description

CAPT3131B4BA
CAPT3131C4BA

CAPT3743C4AA
CAPT3743D4AA

CAPT4961C4AA
CAPT4961D4AA

CAPT3131B4AB
CAPT3131C4AB
CAPT3743C4AB
CAPT3743D4AB
CAPT4961C4AB
CAPT4961D4AB

COIL

UPFLOW/DOWNFLOW PAINTED CAS ED FLOWRATOR W/TXV

A-

Initial releas e of coils with factory-installed, non-adjustable TXV. Single stage AHRI ratings
for CAPT3131 NTC combinations.

Initial releas e of single stage AHRI ratings for CAPT3743 NTC combinations.

Initial releas e of single stage AHRI ratings for CAPT4961C4 NTC combinations.

Redesign the wrapper for the CAPT to provide increased ease of installation.

43

PRODUCT IDENTIFICATION

CHPF

-INDOOR COIL HORIZONT AL A-COIL PAINTED FLOWRATOR

C

Model/Rev Description

CHPF*****6AA Intial release of 13 SEER CHPF horizontal A coil.

Coils

CHPF*****6BA

CHPF1824A6CA
CHPF2430B6CA
CHPF3636B6CA
CHPF3642C6CA
CHPF3642D6CA
CHPF3743C6BA
CHPF3743D6BA
CHPF4860D6DA

CHPF1824A6CB
CHPF2430B6CB
CHPF3636B6CB
CHPF3642C6CB
CHPF3642D6CB
CHPF3743C6BB
CHPF3743D6BB
CHPF4860D6DB

CHPF1824A6CC
CHPF2430B6CC
CHPF3636B6CC
CHPF3642C6CC
CHPF3642D6CC
CHPF3743C6BC
CHPF3743D6BC
CHPF4860D6DC

Released Burr Oak Louvered Fin in place of the Wavy Fin. The rows changed by one, (i.e.
4 row to 3 row; 3 row to 2 row) where applicable.

Louvered fins. Replaced copper tube hairpins with aluminum hairpins.

Drain pan material c hange to a Decabromodiphenyl Ether free resin.

Change to prepainted wrappers

44

PRODUCT IDENTIFICATION

CAUF

INDOOR COIL A-UPFLOW/DOWNFLOW UNCASED FLOW RATOR

C-

Model/Rev Description

CAUF*****6AA Initial release of CAUF Dayton Upflow/Downflow coils.

CAUF*****6BA Burr Oak Louvered Fin released in place of the Wavy Fin.

Coils

CAUF****6*DA Replaced

CAUF*****6DB Drain pan material changed.

CAUF1824(A/B/ C)6RDB
CAUF3636(A/B)6RDB
CAUF3636(C/D)6RDB
CAUF3642(C/D)6RDB
CAUF3743(C/D)6RDB
CAUF4860(C/D)6RDB
CAUF4961(C/D)6RDB

CAUF3137B6RAA Manufacturing Location Change from Dayton to Houston. Designated by "R".

CAUF36***CA Redesign from 2 row to 3 row for performance improvement .

Manufacturing Location Change from Dayton to Houston. Designated by "R".

existing copper coils and other associated parts with aluminum components.

45

PRODUCT IDENTIFICATION

CSCF

INDOOR C OIL S-HORIZONTAL SLAB COIL UNPAINTED FLOW RATOR

C-

Model/Rev Description

CSCF*****6AA Release 13 SEER CSCF slab horizontal coil.

CSCF*****6BA

CSCF1824N6BB
CSCF3036N6BB
CSCF3642N6CB
CSCF4860N6CB

Burr Oak Louvered Fin released in place of the Wavy Fin. The rows change by one, (i.e.
4 row to 3 row; 3 row to 2 row) where applicable.

Drain pan material c hange.

Coils

CSCF3642N6CA
CSCF4860N6CA

CSCF1824N6DA
CSCF3036N6DA
CSCF3642N6DA
CSCF4860N6DA

Release 13 SEER CSCF slab horizontal coil. Louvered fin project.

Release 13 SEER CSCF slab horizontal coil. Converting copper coils, maifolds, haripins,
flowrators to aluminum coils .

CTPF

INDOOR COIL T-COATED PAINTE D FLOWRATOR

C-

Model/Rev Description

CTPF*****6AA Initial release of coated coils.

CTPF1824*6AB
CTPF3030*6AB
CTPF3131*6AB
CTPF3636*6AC
CTPF3642*6AB
CTPF4860*6AB

Drain pan material c hange.

Model/Rev Description

CTUF1824*6AA
CTUF3030*6AA
CTUF3131*6AA
CTUF3636*6AA
CTUF3642*6AA
CTUF4860*6AA

CTUF1824*6AB
CTUF3030*6AB
CTUF3131*6AB
CTUF3636*6AC
CTUF3642*6AB
CTUF4860*6AB

46

CTUF

INDOOR C OIL T-COATED UNPAINTED FLOW RATOR

C-

Initial release.

Initial release.

ACCESSORIES

LIGHT COMMERCIAL

GSX11

Model Description GSX110903 GSX110904 GSX111203 GSX111204

FS K0 1A*

ASC0 1

LAKT-0 1

LSK03*

Freeze Protection Kitxxxx

Anti Short Cycle Kit xxxx

Low Ambient Kit xxxx

Liquid Line Solenoid Kit

xxxx

GSZ11

Model Description GSZ110903 GSZ110904 GSZ111203 GSZ111204

FS K0 1A*

ASC0 1

OT-EHR18-60

LAKT-0 1

LSK03*

Freeze Protection Kitxxxx

Anti Short Cycle Kit xxxx

Emergency Heat Relay Kit --- --- --- ---

Low Ambient Kit xxxx

Liquid Line Solenoid Kit

xxxx

ELECTRIC HEATER KITS

AHKD
Model

No minal

kW

Electrical

Characteristics

Stages

Weigh t

(lbs.)

AHKD15-3 15 208-230/3/60 1 56 60

AHKD15-4 15 460/3/60 1 55 30

AHKD20-3 20 208-230/3/60 2 59 70

AHKD20-4 20 460/3/60 2 57 35

AHKD30-3 30 208-230/3/60 2 60 100

AHKD30-4 30 460/3/60 2 58 50

Max.

Ove rcurrent

Protection

NOTES:

• AR Series Air Handlers do not have factory installed electric heat. Purchased as an accessory, these are the ONLY heater kits that can be
used with the AR Series.

• The electrical characteristics of the air handler, electric heater kits and building power supply must be compatible.

47

ACCESSORIES

ASX13

Model Description

1

ABK-20

Anchor Bracket Kit X X X X X X X

ASX13

018*

ASX13

024*

ASX13

030*

ASX13

036*

ASX13

042*

ASX13

048*

ASX13

060*/061*

ASC01 Anti-Short Cycle Kit X X X X X X X

CSR-U-1 Hard-start Kit X X X X

CSR-U-2 Hard-start Kit X X

CSR-U-3 Hard-start Kit X X

2

FSK01A

Freeze Protection Kit X X X X X X X

LSK02A Liquid Line Solenoid Kit X X X X X X X

TX2N4A³ TXV Kit X X

TX3N4

TX5N4

3

3

TXV Kit X X

TXV Kit X X X

G/VSX13

Model Description

1

ABK-20

ABK-21

Anchor Bracket Kit X X X X X X X

4

Anchor Bracket Kit X X X X

G/VSX13

018*

ASC01 Anti-Short Cycle Kit X X X X X X X

CSR-U-1 Hard-start Kit X X X X

CSR-U-2 Hard-start Kit X X

CSR-U-3 Hard-start Kit X X

1

FSK01A

Freeze Protection Kit X X X X X X X

LSK02A Liquid Line Solenoid Kit X X X X X X X

TX2N4A³ TXV Kit X X

TX3N4

TX5N4

2

2

TXV Kit X X

TXV Kit X X X

CSB-15 Sound Blanket Kit X X X

CSB-16 Sound Blanket Kit X X X X

G/VSX13

024*

G/VSX13

030*

G/VSX13

036*

G/VSX13

042*

G/VSX13

048*

G/VSX13060*

GSX13061*

GSX13 Three-Phase models

Model Description

ABK-20

1

Anchor Bracket Kit XXXXX

GSX13

0363*

ASC01Anti-Short Cycle Kit XXXXX

FSK01A

2

Freeze Protection Kit X X X X X

LSK02A Liquid Line Solenoid Kit X X X X X

TX3N4

TX5N4

3

3

TXV Kit X

TXV Kit XXXX

CSB-15 Sound Blanket Kit X X X X

CSB-16 Sound Blanket Kit X

LAKT01 Low Ambient Kit X X X X X

0163R00002 Crankc ase Heater Kit X

0163R00003 Crankc ase Heater Kit X X

0163R00004 Crankc ase Heater Kit X X

48

GSX13

0483*

GS X1 3

0484*

GSX130

[60/61]3*

GSX130

[60/61]4*

1

Contains 20 brackets; four brack­ets needed to anchor unit to pad

2

Installed on indoor coil.

3

Field-installed, non-bleed, expan­sion valve kit - Condensing units
and heat pumps with reciprocat­ing compressors require the use
of start-assist components when
used in conjuntion with an indoor
coil using a non-bleed thermal
expansion valve refrigerant.

4

For use on the GSX13 & VSX13
23" chassis only. Contains 20
brackets; four brackets needed
to anchor unit to pad.

ACCESSORIES

ASX14

Model Desc ription

1

ABK-20

Anchor Bracket Kit XXXXXXX

ASX14

018

ASC01Anti-Short Cycle Kit XXXXXXX

CSR-U-1 Hard-start Kit X X X X

CSR-U-2 Hard-start Kit X X

CSR-U-3 Hard-start Kit XX

1

FSK01A

Freeze Protection Kit X X X X X X X

LSK02A Liquid Line Solenoid Kit X X X X X X X

TX2N4A TXV Kit X X

TX3N4 TXV Kit X X

TX5N4TXV Kit XXX

GSX14

Model Desc ription

1

ABK-20
ASC01
CSR-U-1
CSR-U-2
CSR-U-3

FSK01A

Anchor Bracket Kit XXXXXXX

Anti-Short Cycle Kit
Hard-start Kit
Hard-start Kit
Hard-start Kit

1

Freeze Protection Kit

LSK02A Liquid Line Solenoid Kit X X X X X X X

TX2N4A
TX3N4
TX5N4
CSB-14
CSB-16

TXV Kit
TXV Kit
TXV Kit
Sound Blanket Kit
Sound Blanket Kit

GSX14

018

XXXXXXX
XXXX

XXXXXXX

XX

XXXXX

ASX14

024

GS X1 4

024

ASX14

030

GSX14

030

ASX14

036

GSX14

036

XX

XX

ASX14

042

GSX14

042

ASX14

048

GSX14

048

ASX14

060

GSX14

060

XX

XXX

XX

SSX14

Model Desc ription

1

ABK-20

Anchor Bracket Kit XXXXXXX

SSX14

018

ASC01Anti-Short Cycle Kit XXXXXXX

CSR-U-1 Hard-start Kit X X X X

CSR-U-2 Hard-start Kit X X

CSR-U-3 Hard-start Kit XX

1

FSK01A

Freeze Protection Kit X X X X X X X

LSK02A Liquid Line Solenoid Kit X X X X X X X

TX2N4A TXV Kit X X

2

TX3N4

TX5N4

1

Installed on indoor coil

2

Require for heat pump applications where ambient temperatures fall below 0°F with 50% or higher relative humidy.

TXV Kit X X

2

TXV Kit XXX

SSX14

024

SSX14

030

SSX14

036

SSX14

042

SSX14

048

SSX14

060

49

ACCESSORIES

1

il

1

SSX16

Model Description

1

ABK-20

Anchor Bracket Kit X X X X X X

SSX16

024*

ASC01 Anti-Short Cycle Kit X X X X X X

CSR-U-1 Hard-start Kit X X X

CSR-U-2 Hard-start Kit X X

CSR-U-3 Hard-start Kit X X

1

FSK01A

Freeze Protection Kit X X X X X X

LSK02A Liquid Line Solenoid Kit X X X X X X

TX2N4A TXV Kit X

TX3N4 TXV Kit X X

TX5N4 TXV Kit X X X

Installed on indoor co

humidy.

ASX16/DSX16

Model Description

1

ABK-20

Anchor Bracket Kit X X X X X X

ASC01 Anti-Short Cycle Kit X X X X X X
CSR-U-1 Hard-start Kit X X X
CSR-U-2 Hard-start Kit X X
CSR-U-3 Hard-start Kit X X

1

FSK01A

Freeze Protection Kit X X X X X X

LSK02A Liquid Line Solenoid Kit X X X X X X

TX2N4A TXV Kit X
TX3N4 TXV Kit X X
TX5N4 TXV Kit X X X

Installed on indoor coil

humidy.

A/DSX 16

024*

SSX16

030*

A/DSX16

030*

SSX16

036*

A/DSX16

036*

SSX16

042*

A/DSX16

042*

SSX16

048*

A/DSX 16

048*

SSX16

060*

A/DSX16

060*

ASX/GSX16 (Rev F or Later)

Model Description

A/GSX1 6

018F*

ABK-20 Anchor Bracket Kit X X X X X X X X
ASC01 Anti-Short Cycle Kit X X X X X X X X
CSR-U-1 Hard-start Kit X X X X
CSR-U-2 Hard-start Kit X X
CSR-U-3 Hard-start Kit X X X
FSK01A Freeze Protection Kit X X X X X X X X
LSK02A Liquid Line Solenoid Kit X X X X X X X X
TXV- 30 Fi xe d TXV Ki t X X X
TXV- 42 Fi xe d TXV Ki t X X
TXV- 48 Fi xe d TXV Ki t X
TXV- 60 Fi xe d TXV Ki t XX

1

Installed on indoor coil

2

Required for heat pump applications w here ambient temperatures f all below 0°F w ith 50% or higher relative humidy.

50

A/GSX16

024F*

A/GSX16

030F*

A/GSX16

036F*

A/GSX16

042F*

A/GSX16

048F*

A/GSX16

060F*

A/GSX16

061F*

ACCESSORIES

ASX/DSX18

Model Description

ABK-20

1

Anchor Bracket Kit X X X

A/DSX18

036*

ASC01 Anti-Short Cycle Kit X X X

CSR-U-1 Hard-start Kit X

CSR-U-2 Hard-start Kit X

CSR-U-3 Hard-start Kit X X

FSK01A

1

Freeze Protection Kit X X X

LSK02A Liquid Line Solenoid Kit X X X

TX2N4A TXV Kit

TX3N4 TXV Kit X

TX5N4 TXV Kit X X

1

Installed on indoor coil

2

Required for heat pump applications w here ambient temperatures f all below 0°F w ith 50% or higher r elative humidity.

A/DSX18

048*

/DSX18

060*

51

ACCESSORIES

ASZ13

Model Description

ASZ1 3

018

AFE18-60AAll-Fuel Kit XXXXXXX

ASC01Anti-Short Cycle Kit XXXXXXX

4

CSR-U-1

CSR-U-2

CSR-U-3

FSK01A

Hard-start Kit XXXX

4

Hard-start Kit X X

4

Hard-start Kit XX

2

Freeze Protection Kit XXXXXXX

LSK02ALiquid Line Solenoid Kit XXXXXXX

OT/EHR18-60Emergency Heat Relay kit XXXXXXX

3

OT18-60A

TX2N4A

4

TX3N4

4

TX5N4

1

Contains 20 brackets; four brackets needed to anchor unit to pad

2

Installed on indoor coil.

3

Required for heat pump applications where ambient temperatures fall below 0°F with 50% or higher relative humidity.

4

Condensing units & heat pumps with reciprocating compressors require the use of start-assist components when used in conjuntion with an indoor coil using a non-bleed expansion valve refrigerant
metering device.

5

Field-installed, non-bleed, expansion valve kit - Condensing units and heat pumps with reciprocating compressors require the use of start-assist components when used in conjuntion with an indoor coil
using a non-bleed thermal expansion valve refrigerant.

Outdoor Thermostat w/Lockout StatXXXXXXX

4

TXV K it X X

TXV K it X X

TXV K it XXX

ASZ1 3

024

ASZ1 3

030

ASZ1 3

036

ASZ1 3

042

ASZ1 3

048

ASZ1 3

060

52

ACCESSORIES

GSZ13

Model Description

AFE18-60A

ASC01

All-Fuel Kit

Anti-Short Cycle Kit

G/VSZ13

018

G/VSZ13

024

G/VSZ13

030

G/VSZ13

036

G/VSZ13

042

G/VSZ13

048

G/VSZ13

060

XXXXXXX

XXXXXXX

CSB-15

CSB-16

CSR-U-1

CSR-U-2

CSR-U-3

FSK01A

Sound Blanket

Sound Blanket

4

Hard-start Kit XXXX

4

Hard-start Kit X X

4

Hard-start Kit XX

2

Freeze Protection Kit XXXXXXX

XXXX

XXX

LSK02ALiquid Line Solenoid Kit XXXXXXX

OT/EHR18-60Emergency Heat Relay kit XXXXXXX

3

OT18-60A

TX2N4A

5

TX3N4

5

TX5N4

Outdoor Thermostat w/Lockout StatXXXXXXX

5

TXV K it X X

TXV K it X X

TXV K it

XXX

GSZ13 Three-Phase

Model Description

GS Z1 3

036*

AFE18-60AAll-Fuel Kit XXXXX

ASC01Anti-Short Cycle Kit XXXXX

2

FSK01A

Freeze Protection Kit XXXXX

LSK02ALiquid Line Solenoid Kit XXXXX

OT/EHR18-60Emergency Heat Relay kit XXXXX

3

OT18-60A

5

TX3N4

5

TX5N4

Outdoor Thermostat w/Lockout StatXXXXX

TXV K it X X

TXV K it X X X

CSB-15Sound Blanket Kit XXXX

CSB-16 Sound Blanket Kit X

LAKT01Low Ambient Kit XXXXX

1

Contains 20 brackets; four brackets needed to anchor unit to pad

2

Installed on indoor coil.

3

Required for heat pump applications where ambient temperatures fall below 0°F with 50% or higher relative humidity.

4

Condensing units & heat pumps with reciprocating compressors require the use of start-assist components when used in conjuntion with an indoor coil using a non-bleed
expansion valve refrigerant metering device.

5

Field-installed, non-bleed, expansion valve kit - Condensing units and heat pumps with reciprocating compressors require the use of start-assist components when used
in conjuntion with an indoor coil using a non-bleed thermal expansion valve refrigerant.

GS Z1 3

048*

GS Z1 3

048*

GS Z1 3

060*

GS Z1 3

060*

53

ACCESSORIES

SSZ14

Model Description

SSZ14

018*

AFE18-60AAll-Fuel Kit XXXXXXX X

CSR-U-1Hard-start Kit XXXXX

CSR-U-2 Hard-start Kit X X X
CSR-U-3 Hard-start Kit XX

1

FSK01A

Freeze Protection Kit XXXXXXX X

LSK02ALiquid Line Solenoid Kit XXXXXXX X

2

OT18-60A

Outdoor Thermostat XXXXXXX X

OT/EHR18-60Emergency Heat Relat KitXXXXXXX X

TX2N4A³ TXV Kit X X

TX3N4³ TXV Kit X X X

TX5N4³

TXV K it XX X

ASZ14

Model Description

AFE18-60AAll-Fuel Kit XXXXXXX X
CSR-U-1Hard-start Kit XXXXX
CSR-U-2 Hard-start Kit X X X
CSR-U-3 Hard-start Kit XX

1

FSK01A

Freeze Protection Kit XXXXXXX X

LSK02ALiquid Line Solenoid Kit XXXXXXX X

2

OT18-60A

Outdoor Thermostat XXXXXXX X
OT/EHR18-60Emergency Heat Relat KitXXXXXXX X
TX2N4A³ TXV Kit X X
TX3N4³ TXV Kit X X X

TX5N4³

TXV K it XX X

ASZ14

018*

SSZ14

024*

ASZ14

024*

SSZ14

030*

ASZ14

030*

SSZ14

036*

ASZ14

036*

SSZ14

038*

ASZ14

038*

SSZ14

042*

ASZ14

042*

SSZ14

048*

ASZ14

048*

SSZ14

060*

ASZ14

060*

GSZ14

Model Description

GS Z1 4

018*

AFE18-60AAll-Fuel Kit XXXXXXX
CSR-U-1Hard-start Kit XXXX
CSR-U-2 Hard-start Kit X X
CSR-U-3 Hard-start Kit X X

1

FSK01A

Freeze Protection Kit XXXXXXX
LSK02ALiquid Line Solenoid Kit XXXXXXX

2

OT18-60A

Outdoor Thermostat XXXXXXX
OT/EHR18-60Emergency Heat Relat KitXXXXXXX
TX2N4A³ TXV Kit X X
TX3N4³ TXV Kit X X

TX5N4³

TXV K it X X X
CSB-15 Sound Blanket Kit X X X
CSB-16 Sound Blanket Kit XXXX

1

Installed on indoor coil

2

Required for heat pump applications w here ambient temperatures fall below 0°F w ith 50% or higher relative humidy.

GS Z1 4

024*

GS Z1 4

030*

GS Z1 4

036*

GS Z1 4

042*

GS Z1 4

048*

GS Z1 4

060*

54

ACCESSORIES

l

ASZ16/DSZ16

Model Description

A/DSZ16

024*

AFE18-60A All-Fuel Kit X X X X X X
CSR-U-1 Hard-start Kit X X X
CSR-U-2 Hard-start Kit X X
CSR-U-3 Hard-start Kit XX

FSK01A

1

Freeze Protection Kit X X X X X X
LSK02A Liquid Line Solenoid Kit X X X X X X
OT/EHR18-60 Emergency Heat Relay Kit X X X X X X
OT18-60A² Outdoor Thermostat w/ Lockout Stat X X X X X X
TX2N4A TXV Kit X
TX3 N4 TXV K it X X
TX5 N4 TXV K it X X X

1

Installed on indoor coil

2

Required for heat pump a pplica tions wher e ambient tempera tures fall below 0°F with 50% or hig her r elat ive humidity.

SSZ16

Model Description

AFE18-60A All-Fuel Kit X X X X X X

CSR-U-1 Hard-start Kit X X X

CSR-U-2 Hard-start Kit X X X X

CSR-U-3 Hard-start Kit XX

FSK01A

1

Freeze Protection Kit X X X X X X

LSK02A Liquid Line Solenoid Kit X X X X X X

OT/EHR18-60 Emergency Heat Relay Kit X X X X X X

OT18-60A² Outdoor Thermostat w/ Lockout Stat X X X X X X

TX2N4A TXV Kit X

TX3 N4 TXV K it X X

TX5 N4 TXV K it X X X

1

Installed on indoor coi

2

Required for heat pump a pplica tions wher e ambient tempera tures fall below 0°F with 50% or hig her r elat ive humidity.

SSZ16

024*

A/DSZ16

030*

SSZ16

030*

A/DSZ16

036*

SSZ16

036*

A/DSZ16

042*

SSZ16

042*

A/DSZ16

048*

SSZ16

048*

A/DS Z16

060*

SSZ16

060*

55

ACCESSORIES

0°F with 50%

high

idy

refrigerant met ering device

ASZ/DSZ18

Model Description

A/DSZ18

036*

AFE18-60A All-Fuel Kit X X X
CSR-U-1 Hard-start Kit X
CSR-U-2 Hard-start Kit X
CSR-U-3 Hard-start Kit X X

FSK01A

1

Freeze Protection Kit X X X
LSK02A Liquid Line Solenoid Kit X X X
OT/EHR18-60 Emergency Heat Relay Kit X X X
OT18-60A² Outdoor Thermostat w/ Lockout Stat X X X
TX2N4A³ TXV Kit
TX3N4³ TXV Kit X
TX5N4³ TXV Kit X X

Installed on indoor coil

1

Require for heat pump applications where ambient temperatures fall below

2

³ Field-installed, non-bleed, expansion valve kit — Condensing units and heat pumps with reciprocating compressors require the use of

start-assist components when used in conjunction with an indoor coil using a non- bleed thermal expansion valve

.

A/DSZ18

048*

or

er relative hum

A/DSZ18

060*

.

56

ACCESSORIES

A

EXPANSION VALVE KITS

1/4 FLARE CONNECTION

BULB TO BE LOCATED
AT 10 OR 2 O'CLOCK

For Applications requiring

a field installed access fitting

EVAPORATOR COIL

EVAPORATOR COIL

1/4' F LARE
CONNECTION

SEAL SUPPLIED W/ KIT

REMOVE BEFORE INSTALLING EXPANSION VALVE

SUCTION LINE

BULB

EXPANSION VALVE

SUCTION LINE

EXPANSION VALVE

BULB

SEAL SUPPLIED W/ KIT

BULB TO BE LOCATED
AT 10 OR 2 O'CLOCK

DISTRIBUTOR
BODY

For Applications not requiring

a field installed access fitting

DISTRIBUTOR
BODY

7/8" NUT

PISTON

SEAL

PISTON

SEAL

TAILPIECE

3/8"­SWEAT

TAILPIECE

3/8"­SWEAT

SEAL SUPPLIED W/ KIT

7/8" NUT

SEAL SUPPLIED W/ KIT

REMOVE BEFORE
INSTALLING
EXPANSION VALVE

OT/EHR18-60

OUTDOOR THERMOSTAT &
EMERGENCY HEAT RELAY

OT18-60

Thermo sta t

DEAD
DIAL

45º

Dial

COLD
WARM

Set Point
Indicator

Mark

(Shown @ Oº F)

(Turn Clockwise)

(Turn Counterclockwise)

Not for use with

ComfortNet System

57

315º

Set Point

djustmen t

Screw

ACCESSORIES

Wire Nut

FSK01A

FREEZE THERMOSTAT

KIT

Y

k

c

a

l

B

k

c

a

l

B

Wire Nut

Y

Install Line

Thermostat

Here

Install Line

Thermostat

Here

B

l

a

c

B

l

Wire Nut

Wire Nut

Y

k

a

c

k

Y

58

ACCESSORIES

COIL ACCESSORIES

COIL MODEL

CA*F1824 6*

CA*F3030 6*

CA*F3131 6*

CA*F3636 6*

CA*F3642 6*

CA*F3743 6*

CA*F4860 6*

CA*F4961 6*

CHPF18246*

CHPF24306*

CHPF36366*

CHPF36426*

CHPF37436*

CHPF48606*

CSCF1824N6*

CSCF3036N6*

CSCF3642N6*

CSCF4860N6*

TX2N4A
TXV KIT

TX 3N 4

TXV KIT

TX5N4

TXV KIT

FSK01A FREEZE

PRO TECTION KIT

XX

XX

XX X

XX

X

X

XX

XX

XX

XX X

BLOW ER

NO HEAT

MBR0800AA -1AA

MBR1200AA -1AA

MBR1600AA -1AA

MBR2000AA -1AA

MBE1200AA-1AA

MBE1600AA-1AA

MBE2000AA-1AA

MBE1200AA-1BA

MBE1600AA-1BA

MBE2000AA-1AA

X = Allowable combinations

- = Restricted combinations

- XXXXX - -

- XXXXXXXXX

- XXXXXXXXX

- XXXXXXXXX

----XX----

-----X----

-----X----

- XXXXX - - - -

- XXXXX - - - -

- XXXXX - - - -

HK* SERIES ELETRIC HEAT KITS -

ELECTRIC HEAT KIT APPLICATIONS - MBR, MBE

ELECTRIC HEAT KI T

HKR-03*

^ = Circuit 1: Single Phase for Air Handler Motor
Circuit 2: 3-Phase for HKR3 Heater Kits

HKR05-(C)'

HKR-06*

HKR-08(C)*

HKR-10(C)*

HKA-15C*

HKA-20C*

^HK R3-1 5*

^HKR3-20A

59

ACCESSORIES

ELECTRIC HEAT KIT APPLICATIONS - ARPF

ARPF1824

1/16

ARPF1931

1/16

ARPF3030

1/16

ARPF3642

1/16

ARPF3743

1/16

ARPF4860

1/16

HKR-03* XXXXXX

HKR-05*, HKR-05C* X X X X X X

HKR-06* XXXXXX

HKR-08*, HKR-08C* X

HKR-10*, HKR-10C* X

HKA-15C* X

1

1

2

HKA-20C* X

^ HKR3-15* X

^ HKR3-20* X

1

X

1

X

2

X

XXXX

1

X

2

X

2

2

2

XXX

3

X

3

X

3

X

3

X

3

X

3

X

3

X

3

X

X

X

X

X

* Revision level that may or may not be designated
C Circuit breaker option
^ Heat kit required three-phase power supply

1

Air handler must either be on medium or high speed

2

Air handler must be on high speed

3

For static pressure of 0.6 or higher, air handler must be on m edium or high s peed.

ELECTRIC HEAT KIT APPLICATIONS - ARUF

ARUF1729

1/16

HKR-03* XXXXXXX

HKR-05*, HKR-05C*XXXXXXX

HKR-06* XXXXXXX

HKR-08*, HKR-08C* X

HKR-10*, HKR-10C* X

HKA-15C* X

1

1

2

HKA-20C* X

^ HKR3-15* X

^ HKR3-20* X

* Revision level that may or may not be designated
C Circuit breaker option
^ Heat kit required three-phase power supply

1

Air handler must either be on medium or high speed

2

Air handler must be on high speed

3

For static pressure of 0.6 or higher, air handler must be on medium or high speed.

ARUF1824

1/16

1

X

1

X

2

X

ARUF1931

1/16

1

X

1

X

2

X

ARUF3030

1/16

ARUF3642

1/16

ARUF3743

1/16

ARUF4860

1/16

XXXX

1

X

2

X

2

2

2

XXX

3

X

3

X

3

X

3

X

3

X

3

X

3

X

3

X

X

X

X

X

60

ACCESSORIES

HKR-03* X X X X

HKR-05*, HKR-05C* X X X X

HKR-06* X X X X

HRK-08*, HKR-08C* X

HKR-10*, HKR-10C*

HKA-15C*

HKA-20C*

^HK R3-15*

^HK R3-20*

*

Revision level that may or ma y not be designated
C Circuit Breaker option

^ Heat kit requires 3-phase power supply

ELECTRIC HEAT KIT APPLICATIONS - ADPF

ADPF 182416 ADPF304216 ADPF48601 6 ADPF4486 016

1

1

X

XX

-X

-X

-X

1

X

1

X

1

X

1

X

2

X

2

X

XX

XX

1

Air handler must be on speed tap 2, 3, 4 or 5

2

Ai r handler must be on spee d tap 4 or 5

3

Air handler must be on speed tap 3, 4 or 5

ELECTRIC HEAT KIT APPLICATIONS - AEPF

X

X

1

X

1

X

AEPF1830 16 AEP F303616 AEPF313 716 AEP F42 6016

HKR-05*, HKR-05C* X X

HRK-08*, HKR-08C X X X

HKR-10*, HKR-10C

1

X

HKA-15C* X

XXX

1

HKA-20C*

*

Revisi on le ve l th at may or ma y n ot b e desig nat e d

C Circuit Breaker option

1

This heater kit can be used ONLY for 10 00 C FM or higher applications

2

This heater kit can be used ONLY for 12 00 C FM or higher applications

1

X

X

2

X

61

ACCESSORIES

HKR-03* X X X X

HKR-05*, HKR-05C* X X X X

HKR-06* X X X X

HRK-08*, HKR-08C*

HKR-10*, HKR-10C*

+HKR3-15*

+HKR3-20*

HKA-15C*

HKA-20C*

*

Revision level that may or may not be designated
C Circuit Breaker option
+ H eat k it req uir es 3-phase power supply

1

Air h andler must be on speed tap 2, 3, 4 o r 5

2

Air handler must be on speed tap 4 or 5

3

Air h and ler must be on speed tap 3, 4 o r 5

ELECTRIC HEAT KIT APPLICATIONS - ASPF

ASPF183016 ASPF303616 ASPF313716 ASPF426016

1

X

1

X

2

X

2

X

1

X

1

X

2

X

2

X

2

X

2

X

1

X

1

X

2

X

2

X

2

X

2

X

X

X

1

X

1

X

1

X

1

X

DRAIN PAN INSULATION KITS

ARUF**14**, ARPT**14**, ASPT**14** & ASUF**14**

MODEL LIST FOR DOWNFLOW KITS

DFK-B

Dow nflow Kit

ARUF18B14** ARUF30C14** ARUF48D14**

ARUF24B14** ARUF36C14** ARUF60D14**

ARUF30B14** ARUF42C14** ARPT36D14**

ARPT18B14** ARPT36C14** ARPT42D14**

ARPT24B14** ASPT36C14** ARPT48D14**

ARPT30B14** ASPT42C14** ARPT60D14**

ASPT24B14** ASPT48C14** ASPT48D14**

DFK-C

Dow nflow Kit

ASUF49C14** ASPT60D14**

DFK-D

Dow nflow Kit

ASUF59D14**

62

ACCESSORIES

ARPT**14**

Heat Kit Applications

Type / model 18B14-A* 24B14-A* 30B14-A* 36C14-A* 36D14-A* 42D14-A* 48D14-A* 60D14-A*

HKSX03XC* XXXXXXXX

HKSX05XC* XXXXXXXX

HKSX06XC* XXXXXXXX

HKSX08XC* XXXXXXXX

HKSX10XC* XXXXXXXX

HKSX15XF* XXXXX

HKSX20XF* XXXXX

HKSC05XC* XXXXXXXX

HKSC08XC* XXXXXXXX

HKSC10XC* XXXXXXXX

HKSC15XA* XXXXXX

HKSC15XB* XXXXXX

HKSC15XF* XXXXX

HKSC19CA* X

HKSC19CB* X

HKSC20DA* X X X X

HKSC20DB* X X X X

HKSC20XF* XXXXX

ARPT

63

ACCESSORIES

ARUF**14**

Heat Kit Applications

TYPE/MODEL 18B14-A* 24B14-B* 24B14-C* 30B14-A* 30C14-B* 36C14-B* 42C14-A* 48D14-A* 60D14-A*

HKSX03XC* XXXXXXXXX

HKSX05XC* XXXXXXXXX

HKSX06XC* XXXXXXXXX

HKSX08XC* XXXXXXXXX

HKSX10XC* XXXXXXXXX

HKSX15XF* XXXXX

HKSX20XF* XXXXX

HKSC05XC* XXXXXXXXX

HKSC08XC* XXXXXXXXX

HKSC10XC* XXXXXXXXX

HKSC15XA* XXXXXX

HKSC15XB* XXXXXX

HKSC15XF*

HKSC19CA* X X X

HKSC19CB* X X X

HKSC20DA* XX

HKSC20DB* XX

HKSC20XF*

HKSC25DC*

* Revis ion lev el that may o r may not be designat ed

Refer to the minimum airflow requirements for each of the heat kits.

ARUF

XXXXX

XXXXX

XXX

*ARUF

ARPT

18 715 715 715 715 950

24 715 715 715 715 950

30B 715 715 715 715 875 875

30C 1170 1170 1170 1170 1345 1345

36 1170 1170 1170 1170 1345 1345

42 1170 1170 1170 1170 1345 1345

48 1590 1590 1590 1590 1715 1715 1715

60 1590 1590 1590 1590 1715 1715 1715

Min imu m CFM r equ ir ed f or Heat er Kit s

3 5 6 8 10 15 19 20 25

64

HEATER (kW)

ACCESSORIES

ASUF**14**

Heat Kit Applications

TYPE/MODEL 29B14-A* 39 C14-A* 49 C14-A* 59D1 4- A*

HKSX03XC* X X X X

HKSX05XC* X X X X

HKSX06XC* X X X X

HKSX08XC* X X X X

HKSX10XC* X X X X

HKSX15XF* X X X

HKSX20XF* X X X

HKSC05XC* X X X X

HKSC08XC* X X X X

HKSC10XC* X X X X

HKSC15XA* X X X

HKSC15XB* X X X

HKSC15XF* X X X

HKSC19CA* X X

HKSC19CB* X X

HKSC20DA* X

HKSC20DB* X

HKSC20XF* X X X

HKSC25DC* X

* Revision level that may o r may not be designated.

Ref er to the minim um airflo w requirem ents fo r each o f the heat kit s.

ASUF

ASUF

29 715 715 715 715 875
39 1170 1170 1170 1170 1345 1345
49 1170 1170 1170 1170 1345 1345
59 1590 1590 1590 1590 1715 1715 1715

Min imu m CFM r equir ed f o r Hea te r Kits

3 5 6 8 10 15 19 20 25

HEATER (kW)

65

ACCESSORIES

ASPT**14**

Heat Kit Applications

TYPE/MODEL 24B14-A* 30C14-A* 36C14-A* 42C14-A* 48C14-A* 42D14-A* 48D14-A* 60D14-A*

HKSX03XC* XXXX XXXX

HKSX05XC* XXXX XXXX

HKSX06XC* XXXX XXXX

HKSX08XC* XXXX XXXX

HKSX10XC* XXXX XXXX

HKSX15XF* X X X X X X

HKSX20XF* X X X X X X

HKSC05XC* X X X X X X X X

HKSC08XC* X X X X X X X X

HKSC10XC* X X X X X X X X

HKSC15XA* X X X X X X

HKSC15XB* X X X X X X

HKSC15XF* X X X X X X

HKSC19CA* X X X

HKSC19CB* X X X

HKSC20DA* XXX

HKSC20DB* XXX

HKSC20XF* X X X X X X

HKSC25DC* XX

* Revision level that may or may not be designated.

Refer to the minimum airflow requirements for each of the heat kits.

ASPT

ASPT

ASPT24B14*
ASPT30C14*

3

715 715 715 715 875
730 715 715 715 950 NR NR

ASPT36C14* NR
ASPT42C14* NR
ASPT48C14* NR
ASPT42D14* NR
ASPT48D14* NR
ASPT60D14* NR

Min imu m CFM r equ ir ed f or Heat er Kit s

66

HEATER (kW)

5 6 8 10 15 19 20 25

NR NR NR NR

NR NR
1170 1170 1170 1170 1345 1345 1345
1170 1170 1170 1170 1345 1345 1345
1170 1170 1170 1170 1345 1345 1345 NR
1590 1590 1590 1590 1715 NR 1715 NR
1590 1590 1590 1590 1715 NR 1715 1715
1590 1590 1590 1590 1715 NR 1715 1715

NR
NR

ACCESSORIES

AVPTC**14**

Heat Kit Applications

TYPE/MODEL 24B14-A* 30C14-A* 36C14-A* 42C14-A* 48C14-A* 42D14-A* 48D14-A* 60D14-A*

HKSX03XC* X X X X X X X X

HKSX05XC* X X X X X X X X

HKSX06XC* X X X X X X X X

HKSX08XC* X X X X X X X X

HKSX10XC* X X X X X X X X

HKSX15XF* X X X X X X

HKSX20XF* X X X X X X

HKSC05XC* X X X X X X X X

HKSC08XC* X X X X X X X X

HKSC10XC* X X X X X X X X

HKSC15XA* X X X X X X

HKSC15XB* X X X X X X

HKSC15XF* X X X X X X

HKSC19CA* X X X

HKSC19CB* X X X

HKSC20DA* XXX

HKSC20DB* XXX

HKSC20XF* X X X X X X

HKSC25DC* XX

* Revision level that may or may not be designated.

Refer to the minimum ai rflow requir ements for each of the heat kits.

ASPT

Heater Kit (kW)

3 5 6 8 10 15 19 20 21 or 25

AVPTC24B14 550 650 700 800 850 NR NR NR NR

AVPTC30C14 600 700 750 875 950 NR NR NR NR

AVPTC36C14 NR 850 900 1000 1200 1440 1500 1500 NR

AVPTC48C14 NR 850 900 1000 1200 1440 1500 1500 NR

†

AVPTC 42D 14

AVPTC 48D 14

AVPTC 60D 14

Note: Airf low data show n applies to the electric heat only in either legacy mode or communicating mode operation
NR - Not r at ed
* Within thermostat user menu CTK0* communicating thermostat w ill display 20KW for OFF- OFF- ON dip sw itch selection, 21kW for

†For match up w ith a 2 ton outdoor unit: Heater kit application shall not exceed 10 kW.

Airflow for 5 kW up to 10 kW heater kits s hall be set to 850 cfm speed tap of ON-ON-ON.

††For match up w ith a 3 ton outdoor unit: Heater kit application shall not exceed 15 kW.

Airf low for 5 kW up to 15 kW heater kits shall be set to 1300 cfm speed tap of ON-OFF-ON.

†††For match up w ith a 3.5 ton outdoor unit: Heater kit application shall not exc eed 20 kW.

Airflow for 5 kW up to 20 kW heater kits shall be set to 1500 cf m speed tap of ON-OFF-OFF

** 3 kW heater kit is not applicable f or this indoor application.

850** 1250 1300 1500 1550 1720 NR 1800 NR

††

†††

NR 1250 1300 1500 1550 1720 NR 1815 1850

NR 1250 1300 1500 1550 1780 NR 1850 1850

MINIMUM CFM REQUIRED FOR HEATER KITS, See notes below

67

ACCESSORIES

ARUF & ASPT

MODEL LIST FOR DOWNFLOW KIT

DFK-B DFK-C DFK-D

DOWN FLOW KIT D OWNFLOW KIT DOWNFLOW KIT

ARUF25B14** ARUF37C14** ARUF37D14**

ARUF29B14** ARUF43C14** ARUF43D14**

ARUF31B14** ARUF49C14** ARUF47D14**

ASPT24B14** ASPT37C14**

ASPT29B14** ASPT47C14**

ASPT37B14** ASPT59C14**

ARUF49D14**

ARUF61D14**

ASPT61D14**

ASPT47D14**

ASPT49D14**

MODEL

3 5 6 8 10 15 19 20 25

ARUF25B14 715 715 715 715 950

ARUF29B14 715 715 715 715 950

ARUF31B14 715 715 715 715 875 875

ARUF37C14 1170 1170 1170 1170 1345 1345

ARUF43C14 1170 1170 1170 1170 1345 1345

ARUF49C14 1170 1170 1170 1170 1340 1430

ARUF37D14 1170 1170 1170 1170 1345 1345

ARUF43D14 1170 1170 1170 1170 1345 1345

ARUF47D14 1170 1170 1170 1170 1345 1345

ARUF49D14 1240 1240 1240 1240 1520 1520

ARUF61D14 1590 1590 1590 1590 1715 1715 1715

HEATER KIT (kW)

MINIMUM CFM REQUIRED FOR HEATER KITS

MODEL

ASPT24B14

ASPT29B14

ASPT37B14

ASPT37C14

ASPT47C14

ASPT59C14

ASPT47D14

ASPT49D14

ASPT61D14*

3 5 6 8 10 15 19 20 25

715 715 715 715 850

715 715 715 715 875 1050

715 715 715 715 875 1050

1170 1170 1170 1170 1345 1345

1170 1170 1170 1170 1345 1345

1170 1170 1170 1170 1345 1345

1240 1240 1240 1240 1520 1520

1590 1590 1590 1590 1715 1715 1715

1590 1590 1590 1590 1715 1715 1715

HEATER (kW)

68

PRODUCT DESIGN

This section gives a basic description of cooling unit operation,
its various components and their basic operation. Ensure your
system is properly sized for heat gain and loss according to
methods of the Air Conditioning Contractors Association (ACCA)
or equivalent.

CONDENSING UNIT

The condenser air is pulled through the condenser coil by a direct
drive propeller fan. This condenser air is then discharged out of
the top of the cabinet. These units are designed for free air
discharge, so no additional resistance, like duct work, shall be
attached.

The suction and liquid line connections on present models are of
the sweat type for field piping with refrigerant type copper. Front
seating valves are factory installed to accept the field run copper.
The total refrigerant charge for a normal installation is factory
installed in the condensing unit.

GSX, GSZ, ASX, ASZ, SSX, SSZ, DSX, DSZ, VSX, and VSZ models are
available in 1 1/2 through 5 ton sizes and use R-410A refrigerant.
They are designed for 208/230 volt single phase applications.

GSX/GSZ *****3 models are available in 3, 4, and 5 ton sizes and
use R-410A refrigerant. They are designed for 208/230 volt 3­phase applications.

ASX, ASZ, DSX and DSZ R-410A model units use the Copeland Scroll
"Ultratech" Series compressors which are specifically designed
for R-410A refrigerant. These units also have Copeland
ComfortAlert diagnostics.

GSX, GSZ, SSX, SSZ, VSX, and VSZ R-410A model units, except for
GSX130181C*, VSX130181B*, VSX130241E*, VSX130421B*, and
VSX130481B*, use the Copeland Scroll "Ultratech" Series com­pressors which are specifically designed for R-410A refrigerant.

There are a number of design characteristics which are different
from the traditional reciprocating and/or scroll compressors.

"Ultractech" Series scroll compressors will not have a discharge
thermostat. Some of the early model scroll compressors required
discharge thermostat.

"Ultratech" Series scroll compressors use "POE" or polyolester
oil which is NOT compatible with mineral oil based lubricants
like 3GS. "POE" oil must be used if additional oil is required.

The MBR blower cabinet uses a PSC motor. It is approved for
applications with cooling coils of up to 0.5 inches W.C. external
static pressure.

The MBR/MBE blower cabinets with proper coil matches can be
positioned for upflow, counterflow, horizontal right or horizon­tal left operation. All units are constructed with R-4.2 insulation.
In areas of extreme humidity (greater than 80% consistently),
insulate the exterior of the blower with insulation having a vapor
barrier equivalent to ductwork insulation, providing local codes
permit.

The CAUF, CAPF and CAPT coils are designed for upflow and
counterflow applications. The CACF and CHPF coils are designed
for horizontal applications.

AR*F, ASPF, ASUF, ASPT
Multi-Position Air Handler

These one-piece multi-position air handlers are used with R­410A and are available in 2 to 5 ton sizes with optional 3 kW to
25kW electric heat kits available for field installation. The AR*F
unit’s blower design includes a PSC motor and is compatible with
heat pumps and cooling applications. ASUF and ASPT units use
an EEM blower motor and are compatible with heat pumps and
cooling applications.

This appliance can be installed in the vertical or left horizontal
position without modification. The horizontal right and downflow
positions require product modification. This product is designed

®

for zero inches (0 inches) clearance; however, adequate access
for service or replacement must be considered without removing
permanent structure. This unit can be installed on a platform
when deemed necessary.

In an attic installation a secondary drain pan must be provided
by the installer and placed under the entire unit with a separate
drain line properly sloped and terminated in an area visible to
the owner. This secondary drain pan is required in the event that
there is a leak or main drain blockage. Closed cell insulation
should be applied to the drain lines in unconditioned spaces
where sweating may occur.

NOTE: Single piece air handlers are factory-sealed to achieve a
2% or less leakage rate at 1.0" water gauge external duct static
pressure.

COILS AND BLOWER COILS

MBR/MBE blower cabinets are designed to be used as a two-piece
blower and coil combination. MBR/MBE/MBVC blower sections
can be attached to cased evaporator coil. This two-piece arrange­ment allows for a variety of mix-matching possibilities providing
greater flexibility. The MBE/MBVC blower cabinets use a variable
speed motor that maintains a constant airflow with a higher duct
static.

MBE blower cabinests are approved for applications with cool­ing coils of up to 0.8 inches W.C. external static pressure. The MBE
models includes a feature that allows airflow to be changed by
+10% or -15%. The MBVC models allow airflow trimming of +/­10%.

69

PRODUCT DESIGN

The ASX [16 & 18], ASZ [16 & 18], DSX[16 & 18] and DSZ [16 & 18]
series split system units use a two-stage scroll compressor. The
two-step modulator has an internal unloading mechanism that
opens a bypass port in the first compression pocket, effectively
reducing the displacement of the scroll. The opening and closing
of the bypass port is controlled by an internal electrically
operated solenoid.

The ZPS/ZRS two-step modulated scroll uses a single step of
unloading to go from full capacity to approximately 67% capac­ity. A single speed, high efficiency motor continues to run while
the scroll modulates between the two capacity steps.

FIGURE A

As this motion occurs, the pockets between the two forms are
slowly pushed to the center of the two scrolls while simulta­neously being reduced in volume. When the pocket reaches the
center of the scroll form, the gas, which is now at a high pressure,
is discharged out of a port located at the center.

During compression, several pockets are being compressed
simultaneously, resulting in a very smooth process. Both the
suction process (outer portion of the scroll members) and the
discharge process (inner portion) are continuous.

Some design characteristics of the Compliant Scroll compressor
are:

• Compliant Scroll compressors are more tolerant of liquid
refrigerant.

NOTE: Even though the compressor section of a Scroll com­pressor is more tolerant of liquid refrigerant, continued
floodback or flooded start conditions may wash oil from the
bearing surfaces causing premature bearing failure.

• "Ultratech" Series scroll compressors use "POE" or polyolester
oil which is NOT compatible with mineral oil based lubri­cants like 3GS. "POE" oil must be used if additional oil is
required.

• Compliant scroll compressors perform "quiet" shutdowns
that allow the compressor to restart immediately without the
need for a time delay. This compressor will restart even if the
system has not equalized.

NOTE: Operating pressures and amp draws may differ from
standard reciprocating compressors. This information can
be found in the unit's Technical Information Manual.

A scroll is an involute spiral which, when matched with a mating
scroll form as shown, generates a series of crescent shaped gas
pockets between the two members.

During compression, one scroll remains stationary (fixed scroll)
while the other form (orbiting scroll) is allowed to orbit (but not
rotate) around the first form.

70

PRODUCT DESIGN

c

CAPACITY CONTROL - LEGACY MODELS

During the compression process, there are several pockets within
the scroll that are compressing gas. Modulation is achieved by
venting a portion of the gas in the first suction pocket back to the
low side of the compressor thereby reducing the effective dis­placement of the compressor. See Figure A. Full capacity is
achieved by blocking these vents, increasing the displacement to
100%. A solenoid in the compressor, controlled by an external 24­volt ac signal, moves the slider ring that covers and uncovers
these vents. The vent covers are arranged in such a manner that
the compressor operates somewhere around 67% capacity when
the solenoid is not energized and 100% capacity when the
solenoid is energized. The loading and unloading of the two step
scroll is done “on the fly” without shutting off the motor between
steps. See Figure B below. The unloaded mode default was chosen
for two reasons:

Molded Plug w/

Rectifier

24 Va

1. It is expected that the majority of run hours will be in the low
capacity, unloaded mode.

2. It allows a simple two-stage thermostat to control capacity
through the second stage in both cooling and possibly heat­ing if desired.

UNLOADER SOLENOID

A nominal 24-volt direct current coil activates the internal
unloader solenoid. The input control circuit voltage must be 18
to 28 volt ac. The coil power requirement is 20 VA. The external
electrical connection is made with a molded plug assembly. This
plug is connected to the Comfort Alert™ or CoreSense™ Module
(dependent upon which module you are using) which contains a
full wave rectifier to supply direct current to the unloader coil.

C

R

Internal Unloader
Coil

FIGURE B

Line

Run Capacitor

S

Line

COOLING

The refrigerant used in the system is R-410A. It is a clear,
colorless, non-toxic and non-irritating liquid. R-410A is a 50:50
blend of R-32 and R-125. The boiling point at atmospheric
pressure is -62.9°F.

A few of the important principles that make the refrigeration cycle
possible are: heat always flows from a warmer to a cooler body.
Under lower pressure, a refrigerant will absorb heat and vaporize
at a low temperature. The vapors may be drawn off and con­densed at a higher pressure and temperature to be used again.

The indoor evaporator coil functions to cool and dehumidify the
air conditioned spaces through the evaporative process taking
place within the coil tubes.

NOTE: The pressures and temperatures shown in the refrigerant
cycle illustrations on the following pages are for demonstration
purposes only. Actual temperatures and pressures are to be
obtained from the "Expanded Performance Chart".

Liquid refrigerant at condensing pressure and temperatures,
(270 psig and 122°F), leaves the outdoor condensing coil through
the drier and is metered into the indoor coil through the metering
device. As the cool, low pressure, saturated refrigerant enters the
tubes of the indoor coil, a portion of the liquid immediately
vaporizes. It continues to soak up heat and vaporizes as it
proceeds through the coil, cooling the indoor coil down to about
48°F.

Heat is continually being transferred to the cool fins and tubes
of the indoor evaporator coil by the warm system air. This
warming process causes the refrigerant to boil. The heat removed
from the air is carried off by the vapor.

As the vapor passes through the last tubes of the coil, it becomes
superheated. That is, it absorbs more heat than is necessary to
vaporize it. This is assurance that only dry gas will reach the
compressor. Liquid reaching the compressor can weaken or
break compressor valves.

The compressor increases the pressure of the gas, thus adding
more heat, and discharges hot, high pressure superheated gas
into the outdoor condenser coil.

In the condenser coil, the hot refrigerant gas, being warmer than
the outdoor air, first loses its superheat by heat transferred from
the gas through the tubes and fins of the coil. The refrigerant now
becomes saturated, part liquid, part vapor and then continues to
give up heat until it condenses to a liquid alone. Once the vapor
is fully liquefied, it continues to give up heat which subcools the
liquid, and it is ready to repeat the cycle.

71

SYSTEM OPERATION

HEATING

The heating portion of the refrigeration cycle is similar to the
cooling cycle. By energizing the reversing valve solenoid coil, the
flow of the refrigerant is reversed. The indoor coil now becomes
the condenser coil, and the outdoor coil becomes the evaporator
coil.

The check valve at the indoor coil will open by the flow of
refrigerant letting the now condensed liquid refrigerant bypass
the indoor expansion device. The check valve at the outdoor coil
will be forced closed by the refrigerant flow, thereby utilizing the
outdoor expansion device.

The restrictor orifice used with the CA*F, CHPF and CH**FCB coils
will be forced onto a seat when running in the cooling cycle, only
allowing liquid refrigerant to pass through the orifice opening.
In the heating cycle, it will be forced off the seat allowing liquid
to flow around the restrictor. A check valve is not required in this
circuit.

COOLING CYCLE

For legacy room thermostat: When the room thermostat calls for
cool, the contacts of the room thermostat close making termi­nals R to Y1 & G (if thermostat calls for low stage cool), or R to
Y1, Y2 & G (if thermostat calls for high stage cool), the low voltage
circuit of the transformer is completed. Current now flows
through the magnetic holding coils of the compressor contactor
(CC) and fan relay (RFC). If thermostat calls for high stage cool,
the microprocessor on the UC board will also energize the
compressor high stage solenoid to run the compressor at full
capacity.

This draws in the normally open contact CC, starting the com­pressor and condenser fan motors in either low or high stage
depending on the thermostat’s demand. 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, then the indoor blower would run continuously
rather than cycling with the compressor.

GSZ, ASZ, SSZ, DSZ, and VSZ models energize the reversing valve
thorough the "O" circuit in the room thermostat. Therefore, the
reversing valve remains energized as long as the thermostat
subbase is in the cooling position. The only exception to this is
during defrost.

For heat pumps, during cooling cycle the reversing valve is
energized as the room thermostat closes “O” terminal to R and
the microprocessor on the UC board responds to such a condi­tion by energizing the solenoid coil on the reversing valve.

DEFROST CYCLE

The defrosting of the outdoor coil is jointly controlled by the
defrost control board and the defrost thermostat.

Solid State Defrost Control

During operation the power to the circuit board is controlled by
a temperature sensor, which is clamped to a return bend (3/8"
coils) or a feeder tube (5 mm coils) entering the outdoor coil.
Defrost timing periods of 30, 60, or 90 minutes may be selected
by connecting the circuit board jumper to 30, 60, or 90 respec­tively. Accumulation of time for the timing period selected starts
when the sensor closes (approximately 31° F), and when the room
thermostat calls for heat. At the end of the timing period, the unit’s
defrost cycle will be initiated provided the sensor remains
closed. When the sensor opens (approximately 75° F), the defrost
cycle is terminated and the timing period is reset. If the defrost
cycle is not terminated due to the sensor temperature, a ten
minute override interrupts the unit’s defrost period. The new
upgraded defrost control has a 12 minute override interrupt.

HEATING CYCLE

The reversing valve on the GSZ, SSZ, ASZ and DSZ models is
energized in the cooling cycle through the "O" terminal on the
room thermostat.

These models have a 24 volt reversing valve coil. When the
thermostat selector switch is set in the cooling position, the "O"
terminal on the thermostat is energized all the time.

Care must be taken when selecting a room thermostat. Refer to the
installation instructions shipped with the product for approved
thermostats.

When the room thermostat calls for heat, the contacts of the
room thermostat close making terminals R to Y & G, the low
voltage circuit of the transformer is completed. Current now
flows through the magnetic holding coils of the compressor
contactor (CC) and fan relay (RFC).

This draws in the normally open contact CC, starting the com­pressor 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 to the
“on” position, then the indoor blower would run continuously
rather than cycling with the compressor.

When the thermostat is satisfied, appropriate commands are
sent to the UC control. The compressor relay and outdoor fan

relay is de-energized. The compressor high stage solenoid
is de-energized if it was energized. The UC control sends an
appropriate command to the indoor unit to de-energize the
indoor blower motor.

72

SYSTEM OPERATION

COOLING CYCLE

Reversing Valve

(Energized)

Indoor

Coil

HEATING CYCLE

Outdoor

Coil

Accumulator

Thermostatic

Expansion

Valve

Bi-Flow

Filter Dryer

Check Valve

Indoor

Coil

Reversing Valve

(De-Energized)

Outdoor

Coil

Accumulator

Thermostatic

Expansion

Valve

Bi-Flow

Filter Dryer

Check Valve

73

SYSTEM OPERATION

EXPANSION VALVE/CHECK VALVE ASSEMBLY IN

COOLING OPERATION

Most expansion valves used in current Amana® Brand Heat Pump products

use an internally checked expansion valve.

This type of expansion valve does not require an external check valve as shown above.

However, the principle of operation is the same.

RESTRICTOR ORIFICE ASSEMBLY IN

COOLING OPERATION

EXPANSION VALVE/CHECK VALVE ASSEMBLY IN

HEATING OPERATION

RESTRICTOR ORIFICE ASSEMBLY IN

HEATING OPERATION

In the cooling mode, the orifice is pushed into its seat,
forcing refrigerant to flow through the metered hole in

the center of the orifice.

74

In the heating mode, the orifice moves back off its seat,

allowing refrigerant to flow unmetered around the

outside of the orifice.

SYSTEM OPERATION

AFE18-60A CONTROL BOARD

DESCRIPTION

The AFE18 control is designed for use in heat pump applications
where the indoor coil is located above/downstream of a gas or
fossil fuel furnace. It will operate with single and two 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 anti­short cycle feature is also incorporated which initiates a 3
minute timed off delay when the compressor goes off. On initial
power up or loss and restoration of power, this 3 minute timed
off delay will be initiated. The compressor won’t be allowed to
restart until the 3 minute off delay has expired. Also included is
a 5 second de-bounce feature on the “Y, E, W1 and O” thermostat
inputs. These thermostat inputs must be present for 5 seconds
before the AFE18 control will respond to it.

An optional outdoor thermostat, OT18-60A, can be used with the
AFE18 to switch from heat pump operation to furnace operation
below a specific ambient temperature setting, 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, if the outdoor thermo-

stat fails closed in this position during the heating season, it will
turn on the furnace 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. The furnace will continue to operate and can
only be stopped by switching the thermostat to the off position
or 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 cooling demand
in the cooling mode. If the outdoor thermostat is stuck in the
closed position switching the “Y” demand to the “W1” furnace
input during the cooling mode as described above, the AFE18
won’t allow the furnace to operate. The outdoor thermostat will
have to be replaced to restore the unit to normal operation.

HIGH VOLTAGE!
Disconnect ALL power before servicing
or installing. Multiple power sources
may be present. Failure to do so may
cause property damage, personal injury
or death.

75

TROUBLESHOOTING CHART

COOLING/HP ANALYS IS CH AR T

Com plaint

POSSIBLE CAUSE

DOTS IN ANALYSIS

GUIDE INDICATE

"POSSIBLE CAUSE"

Pow er Failur e
Blow n Fuse
Unbalanced Power, 3PH
Loose Connection
Shorted or Broken Wires
Open Fan Overload
Faulty Thermostat
Faulty Transformer
Shorted or Open Capacitor
Internal Compress or Overload Open
Shorted or Grounded Compressor
Comp re ss or Stuc k
Faulty Compressor Contactor
Faulty Fan Relay
Open Control Circuit
Low Voltage
Faulty Evap. Fan Motor
Shorted or Grounded Fan Motor
Improper Cooling Anticipator
Shortage of Refrigerant
Restricted Liquid Line
Open Element or Limit on Elec. Heater
Dirty A ir Filter
Dirty Indoor Coil
Not enough air across Indoor Coil
Too much air across Indoor Coil
Overcharge of Refrigerant
Dirty Outdoor Coil
Noncondensibles
Recirculation of Condens ing A ir
Infiltration of Outdoor Air
Improperly Located Thermostat
Air Flow Unbalanced
Sys tem Undersiz ed
Broken Internal Parts
Broken Valves
Ineff icient Compressor
Wrong Type Expansion Valve
Expansion Device Restricted
Oversized Expansion Valve
Undersized Expansion Valve
Expansion Valve Bulb Loose
Inoperative Expansion Valve
Loose Hold-dow n Bolts
Faulty Reversing Valve
Faulty Defrost Control
Faulty Defrost Thermostat
Flow rator Not Seating Properly

No Co oling

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

Unsatisfactory

Cooling/Heating

System runs continuously - little cooling/htg

Too cool and then too warm

•

•••

•••

•••

••••••

••

••• •

••

•••••

•

••

•••

•••

•

•

•••

••

••

••

••

•• •• •

♦♦

••• •

••• •

••• •

•• •

•• •

••

•• •

•••

••

••

••

•• ••

•

••• • ••

••• • •• •

••

••• • •

•• •

•

•

• C ooling or He ating C ycle (He at Pum p)

•••

System

Ope rati ng

Pressures

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

♦

♦

♦

♦

♦

♦

♦

•

♦

••

♦

♦

••

♦

♦

♦

•

••

•

•

♦

••

•

♦♦♦ ♦♦♦

♦♦♦♦♦ ♦

♦♦♦♦♦♦♦

Heatin g Cycle Only (He at Pum p)

♦

Test Method

Remedy

See Service Procedure Ref.

Tes t V olta ge S -1
Inspect Fuse Size & Type S-1
Tes t V olta ge S -1
Ins pect Connection - Tighten S-2, S- 3
Test Circuits With Ohmmeter S-2, S-3
Test Continuity of Overload S-17A
Test Continuity of Thermostat & Wiring S-3
Check Control Circuit w ith Voltmeter S-4
Test Capacitor S-15
Test Continuity of Overload S-17A
Test Motor Windings S-17 B
Us e Tes t Cor d S- 17D
Test Continuity of Coil & Contacts S-7, S-8
Test Continuity of Coil A nd Contacts S-7
Test Control Circuit w ith V oltmeter S-4
Tes t V olta ge S -1
Repair or Replace S-16
Test Motor Windings S- 16
Check Resistance of Anticipator S-3B
Test For Leaks, Add Refrigerant S-101,103
Remove Restriction, Replace Restricted Part S-112
Test Heater Element and Controls S-26,S-27
Inspect Filter-Clean or Replace
Inspect Coil - Clean
Check Blow er Speed, Duct Static Press, Filter S-200
Reduce Blow er Speed S- 200
Recover Part of Charge S-113
Inspect Coil - Clean
Recover Charge, Evac uate, Recharge S -114
Remove Obstruction to Air Flow
Check Window s, Doors , V ent Fans, Etc.
Relocate Thermostat
Readjust Air Volume Dampers
Refigure Cooling Load
Replace Compressor S-115
Test Compressor Ef ficiency S-104
Test Compressor Ef ficiency S-104
Replace Valve S-110
Remove Restriction or Replace Expansion Device S-110
Replace Valve
Replace Valve
Tighten Bulb Bracket S-105
Check Valve Operation S-110
Tigh ten B olts
Replace Valve or Solenoid S-21, 122
Tes t Con tro l S- 24
Test Defros t Thermostat S-25
Check Flow rator & Seat or Replace Flow rator S-111

76

SERVICING

TABLE OF CONTENTS

SERVICING ........................................................................... 77

S-1 CHECKING VOLTAGE ............................................. 78

S-2 CHECKING WIRING ............................................... 78

S-3 CHECKING THERMOSTAT AND WIRING .............. 78

S-3A THERMOSTAT WIRING...........................................78

S-4 CHECKING TRANSFORMER AND CONTROL

CIRCUIT .................................................................. 79

S-7 CHECKING CONTACTOR AND/OR RELAYS ......... 79

S-8 CHECKING CONTACTOR CONTACTS .................. 79

S-9 CHECKING FAN RELAY CONTACTS ..................... 80

S-10 MBR/AR*F ELECTRONIC

BLOWER TIME DELAY RELAY ............................ 81

S-11 CHECKING LOSS OF CHARGE PROTECTOR ..... 81

S-12 CHECKING HIGH PRESSURE CONTROL ........... 81

S-13 CHECKING LOW PRESSURE CONTROL ............ 81

S-10 COPELAND COMFORT ALERT™ ..........................82

S-10B COPELAND CORESENSE™ ................................. 82

S-15 CHECKING CAPACITOR ........................................ 88

S-15A RESISTANCE CHECK USING A DIGITAL MULTI-

METER .................................................................... 88

S-15B CAPACITANCE CHECK USING A DIGITAL

MULTI-METER (IN CAPACITANCE MODE) ......... 88

S-16A CHECKING FAN AND BLOWER

MOTOR WINDINGS (PSC MOTORS) ................. 89

S-16B CHECKING FAN AND BLOWER MOTOR

(ECM MOTORS) .................................................. 89

S-16C CHECKING ECM MOTOR WINDINGS ................... 90

S-16D ECM CFM ADJUSTMENTS MBE / AEPF ................. 90

S-16E BLOWER PERFORMANCE DATA ........................... 94

S-16F CHECKING HIGH EFFICIENCY MOTORS ............. 94

S-16G EEM BLOWER REPLACEMENT ............................ 95

S-17 CHECKING COMPRESSOR .................................. 96

S-17A RESISTANCE TEST ................................................ 97

S-17B GROUND TEST ...................................................... 97

S-17C UNLOADER TEST PROCEDURE .......................... 97

S-17D OPERATION TEST .................................................. 98

S-17E CHECKING 3-PHASE SCROLL COMPRESSOR

ROTATION.....................................................................98

S-18 TESTING CRANKCASE HEATER

(OPTIONAL ITEM) ................................................ 99

S-21 CHECKING REVERSING VALVE

AND SOLENOID ..................................................99

S-24 TESTING DEFROST CONTROL

S-25 TESTING DEFROST THERMOSTAT ...................... 99

S-50 CHECKING HEATER LIMIT CONTROL(S) ...........105

S-52 CHECKING HEATER ELEMENTS ........................ 105

S-60 ELECTRIC HEATER (OPTIONAL ITEM)...............105

S-61A CHECKING HEATER LIMIT CONTROL(S)...........106

S-61B CHECKING HEATER FUSE LINK ........................ 106

(OPTIONAL ELECTRIC HEATERS) ...................... 106

S-62 CHECKING HEATER ELEMENTS ........................ 107

S-100 REFRIGERATION REPAIR PRACTICE ................ 107

S-101 LEAK TESTING

(NITROGEN OR NITROGEN-TRACED) .............107

S-102 EVACUATION ........................................................ 107

S-103 CHARGING ........................................................... 108

S-104 CHECKING COMPRESSOR EFFICIENCY .......... 109

S-106 OVERFEEDING ..................................................... 110

S-107 UNDERFEEDING ................................................. 110

S-108 SUPERHEAT ......................................................... 110

S-109 CHECKING SUBCOOLING .................................. 113

S-110 CHECKING EXPANSION VALVE OPERATION ......... 113

S-112 CHECKING RESTRICTED LIQUID LINE ............. 113

S-113 OVERCHARGE OF REFRIGERANT ..................... 113

S-114 NON-CONDENSABLES ....................................... 114

S-115 COMPRESSOR BURNOUT ................................. 114

S-120 REFRIGERANT PIPING ........................................ 115

S-201 CLEANING ALUMINUM COILS ................................ 113

S-202 DUCT STATIC PRESSURES

AND/OR STATIC PRESSURE DROP

ACROSS COILS ................................................ 115

S-203 SINGLE PIECE AIR HANDLER

EXTERNAL STATIC ............................................ 115

S-203A TWO PIECE AIR HANDLER

EXTERNAL STATIC PRESSURE ...................... 115

S-204 COIL STATIC PRESSURE DROP......................... 116

............................ 99

HIGH VOLTAGE!
Disconnect ALL power before servicing or installing. Multiple power sources may be present. Failure to
do so may cause property damage, personal injury or death.

77

SERVICING

S-1 CHECKING VOLTAGE

1. Remove outer case, control panel cover, etc., from unit being
tested.

With power ON:

WARNING

Line Voltage now present.

2. Using a voltmeter, measure the voltage across terminals L1
and L2 of the contactor for the condensing unit or at the field
connections for the air handler or heaters.

3. No reading - indicates open wiring, open fuse(s) no power or
etc., from unit to fused disconnect service. Repair as needed.

4. With ample voltage at line voltage connectors, energize the
unit.

5. Measure the voltage with the unit starting and operating, and
determine the unit Locked Rotor Voltage. NOTE: If checking
heaters, be sure all heating elements are energized.

Locked Rotor Voltage is the actual voltage available at the
compressor during starting, locked rotor, or a stalled condi­tion. Measured voltage should be above minimum listed in
chart below.

To measure Locked Rotor Voltage attach a voltmeter to the run
"R" and common "C" terminals of the compressor, or to the T
and T2 terminals of the contactor. Start the unit and allow the
compressor to run for several seconds, then shut down the
unit. Immediately attempt to restart the unit while measuring
the Locked Rotor Voltage.

6. Locked rotor voltage should read within the voltage tabula­tion as shown. If the voltage falls below the minimum voltage,
check the line wire size. Long runs of undersized wire can
cause low voltage. If wire size is adequate, notify the local
power company in regard to either low or high voltage.

Unit Supply Voltage

Voltage Min. Max
208/230 197 253

460 414 506

S-2 CHECKING WIRING

HIGH VOLTAGE!
Disconnect ALL power before servicing
or installing. Multiple power sources
may be present. Failure to do so may
cause property damage, personal injury
or death.

1. Check wiring visually for signs of overheating, damaged
insulation and loose connections.

2. Use an ohmmeter to check continuity of any suspected open
wires.

3. If any wires must be replaced, replace with comparable gauge
and insulation thickness.

S-3 CHECKING THERMOSTAT AND WIRING

Thermostat Wiring: The maximum wire length for 18 AWG ther­mostat wire is 100 feet.

S-3A THERMOSTAT WIRING

WARNING

Line Voltage now present.

1

With power ON, thermostat calling for cooling

1. Use a voltmeter to check for 24 volts at thermostat wires C and
Y in the condensing unit control panel.

2. No voltage indicates trouble in the thermostat, wiring or
external transformer source.

3. Check the continuity of the thermostat and wiring. Repair or
replace as necessary.

Indoor Blower Motor

With power ON:

WARNING

Line Voltage now present.

NOTE: When operating electric heaters on voltages other than
240 volts, refer to the System Operation section on electric
heaters to calculate temperature rise and air flow. Low voltage
may cause insufficient heating.

78

1. Set fan selector switch at thermostat to "ON" position.

2. With voltmeter, check for 24 volts at wires C and G.

3. No voltage indicates the trouble is in the thermostat or wiring.

4. Check the continuity of the thermostat and wiring. Repair or
replace as necessary.

Resistance Heaters

1. Set room thermostat to a higher setting than room tempera­ture so both stages call for heat.

2. With voltmeter, check for 24 volts at each heater relay.

SERVICING

3. No voltage indicates the trouble is in the thermostat or wiring.

4. Check the continuity of the thermostat and wiring. Repair or
replace as necessary.

NOTE: Consideration must be given to how the heaters are wired
(O.D.T. and etc.). Also safety devices must be checked for conti­nuity.

S-4 CHECKING TRANSFORMER AND CONTROL CIRCUIT

HIGH VOLTAGE!
Disconnect ALL power before servicing
or installing. Multiple power sources
may be present. Failure to do so may
cause property damage, personal injury
or death.

A step-down transformer (208/240 volt primary to 24 volt sec­ondary) is provided with each indoor unit. This allows ample
capacity for use with resistance heaters. The outdoor sections
do not contain a transformer (see note below).

WARNING

Disconnect ALL power before servicing.

1. Remove control panel cover, or etc., to gain access to trans­former.

With power ON:

WARNING

Line Voltage now present.

2. Using a voltmeter, check voltage across secondary voltage
side of transformer (R to C).

3. No voltage indicates faulty transformer, bad wiring, or bad
splices.

4. Check transformer primary voltage at incoming line voltage
connections and/or splices.

5 If line voltage available at primary voltage side of trans-

former and wiring and splices good, transformer is inopera­tive. Replace.

S-7 CHECKING CONTACTOR AND/OR RELAYS

HIGH VOLTAGE!
Disconnect ALL power before servicing
or installing. Multiple power sources
may be present. Failure to do so may
cause property damage, personal injury
or death.

The compressor contactor and other relay holding coils are
wired into the low or line voltage circuits. When the control
circuit is energized, the coil pulls in the normally open contacts
or opens the normally closed contacts. When the coil is de­energized, springs return the contacts to their normal position.

NOTE: Most single phase contactors break only one side of the
line (L1), leaving 115 volts to ground present at most internal
components.

NOTE: The compressor contactor/relay in ComfortNet
ready equipment is fully integrated into the unitary (UC) con­trol. The compressor contactor/relay coil on the UC control
is non-serviceable.

1. Remove the leads from the holding coil.

2. Using an ohmmeter, test across the coil terminals.

If the coil does not test continuous, replace the relay or contactor.

TM

S-8 CHECKING CONTACTOR CONTACTS

WARNING

Disconnect ALL power before servicing.

SINGLE PHASE:

1. Disconnect the wire leads from the terminal (T) side of the
contactor.

2. With power ON, energize the contactor.

WARNING

Line Voltage now present.

3. Using a voltmeter, test across terminals.

A. L2 - T1 - No voltage indicates CC1 contacts open.

If a no voltage reading is obtained - replace the contactor.

79

SERVICING

T2

VOLT/OHM

METER

Ohmmeter for testing holding coil
Voltmeter for testing contacts

TESTING COMPRESSOR CONTACTOR

(Single Phase)

THREE PHASE

Using a voltmeter, test across terminals:

A. L1-L2, L1-L3, and L2-L3 - If voltage is present, proceed to

B. If voltage is not present, check breaker or fuses on
main power supply..

B. T1-T2, T1-T3, and T2-T3 - If voltage readings are not the

same as in "A", replace contactor.

T1

CC

L1L2

T3L3T2

T1

1. Disconnect wire leads from terminals 2 and 4 of Fan Relay
Cooling and 2 and 4, 5 and 6 of Fan Relay Heating.

2. Using an ohmmeter, test between 2 and 4 - should read open.
Test between 5 and 6 - should read continuous.

3. With power ON, energize the relays.

WARNING

Line Voltage now present.

4

OHMMETER

2

5

TESTING FAN RELAY

4. Using an ohmmeter, test between 2 and 4 - should read
continuous . Test between 5 and 6 - should read open.

5. If not as above, replace the relay.

CHECKING RELAY CONTACTS - PSC FAN MOTOR

3

1

CC

VOLT/OHM

METER

Ohmmeter for testing holding coil
Voltmeter for testing contacts

TESTING COMPRESSOR CONTACTOR

(Three-Phase)

S-9 CHECKING FAN RELAY CONTACTS

HIGH VOLTAGE!
Disconnect ALL power before servicing
or installing. Multiple power sources
may be present. Failure to do so may
cause property damage, personal injury
or death.

L2

L1

HIGH VOLTAGE!
Disconnect ALL power before servicing
or installing. Multiple power sources
may be present. Failure to do so may
cause property damage, personal injury
or death.

1. Disconnect the motor leads from 6-circuit fan motor wire
harness.

2. Connect a voltmeter between circuit 3 and circuits 2 (low
speed) or 1 (high speed).

NOTE: Circuit 3 is connected directly to L2.

3. Energize the system at low or high stage.

WARNING

Line Voltage now present.

4. The measured voltage between circuit 3 and circuits 2 or 1
should be approximately 0VAC, which indicates the relay
contacts are closed. A voltage measurement of approxi­mately 115VAC indicates the relay is open. Replace the
control if the relay checks open when it should be closed. See
notes and cautions below.

80

SERVICING

NOTE: Ensure any ON delays have expired before making

voltage measurements

CAUTION: Prolonged operation with the condenser fan motor
disconnected will cause the high pressure switch to trip.

S-10 MBR/AR*F ELECTRONIC BLOWER TIME DELAY

RELAY

The MBR/AR*F contains an Electronic Blower Time Delay Relay
board, B1370735. This board provides on/off time delays for the
blower motor in cooling and heat pump heating demands when
“G” is energized.

During a cooling or heat pump heating demand, 24Vac is
supplied to terminal “G” of the EBTDR to turn on the blower
motor. The EBTDR initiates a 7 second delay on and then
energizes it’s onboard relay. The relay on the EBTDR board
closes it’s normally open contacts and supplies power to the
blower motor. When the “G” input is removed, the EBTDR
initiates a 65 second delay off. When the 65 seconds delay
expires the onboard relay is de-energized and it’s contacts open
and remove power from the blower motor.

During an electric heat only demand, “W1” is energized but “G”
is not. The blower motor is connected to the normally closed
contacts of the relay on the EBTDR board. The other side of this
set of contacts is connected to the heat sequencer on the heater
assembly that provides power to the first heater element. When
“W1” is energized, the sequencer will close it’s contacts within
10 to 20 seconds to supply power to the first heater element and
to the blower motor through the normally closed contacts on the
relay on the EBTDR. When the “W1” demand is removed, the
sequencer opens it contacts within 30 to 70 seconds and
removes power from the heater element and the blower motor.

The EBTDR also contains a speedup terminal to reduce the delays
during troubleshooting of the unit. When this terminal is
shorted to the common terminal, “C”, on the EBTDR board, the
delay ON time is reduced to 3 seconds and the delay OFF time
is reduced to 5 second.

Two additional terminals, M1 and M2, are on the EBTDR board.
These terminals are used to connect the unused leads from the
blower motor and have no affect on the board’s operation.

S-12 CHECKING HIGH PRESSURE CONTROL

HIGH VOLTAGE!
Disconnect ALL power before servicing
or installing. Multiple power sources
may be present. Failure to do so may
cause property damage, personal injury
or death.

The high pressure control capillary senses the pressure in the
compressor discharge line. If abnormally high condensing
pressures develop, the contacts of the control open, breaking the
control circuit before the compressor motor overloads. This
control is automatically reset.

1. Using an ohmmeter, check across terminals of high pressure
control, with wire removed. If not continuous, the contacts
are open.

2. Attach a gauge to the dill valve port on the base valve.

With power ON:

WARNING

Line Voltage now present.

3. Start the system and place a piece of cardboard in front of the
condenser coil, raising the condensing pressure.

4. Check pressure at which the high pressure control cuts-out.
If it cuts-out at 610 PSIG ± 10 PSIG, it is operating normally
(See causes for high head pressure in Service Problem Analy­sis Guide). If it cuts out below this pressure range, replace
the control.

S-11 CHECKING LOSS OF CHARGE PROTECTOR

(Heat Pump Models)

The loss of charge protectors senses the pressure in the liquid
line and will open its contacts on a drop in pressure. the low
pressure control will automatically reset itself with a rise in
pressure.

The low pressure control is designed to cut-out (open) at
approximately 21 PSIG. It will automatically cut-in (close) at
approximately 50 PSIG.Test for continuity using a VOM and if
not as above, replace the control.

S-13 CHECKING LOW PRESSURE CONTROL

The low pressure control senses the pressure in the suction line
and will open its contacts on a drop in pressure. The low pressure
control will automatically reset itself with a rise in pressure.

The low pressure control is designed to cut-out (open) at approxi­mately 21 PSIG for heat pumps and 55 PSIG for air conditioners.
It will automatically cut-in (close) at approximately 50 PSIG for
heat pumps and 95 PSIG for air conditioners.

Test for continuity using a VOM and if not as above, replace the
control.

81

SERVICING

S-10 COPELAND COMFORT ALERT™

DIAGNOSTICS - 3-WIRE MODULE

Applies to ASX /ASZ and DSX/DSZ units

Comfort Alert™ is self-contained with no required external sen­sors and is designed to install directly into the electrical box of
any residential condensing unit that has a Copeland Scroll™
compressor inside.

Once attached, Comfort Alert provides around-the-clock moni­toring for common electrical problems, compressor defects and
broad system faults. If a glitch is detected, an LED indicator
flashes the proper alert codes to help you quickly pinpoint the
problem. See Diagnostic Table: 3-Wire Comfort Alert Module on

previous page.)

S-10B COPELAND CORESENSE™

DIAGNOSTICS - 3-WIRE MODULE

Applies to ASX /ASZ and DSX/DSZ units

Bold line shows field
installed wiring

Dashed line shows thermostat
demand wi ring in system without
HTCO, HPCO, CPCO, and ECB

Comfort Alert

Diagnostics Module

HTCO High Temperature Cut Out Switch
HPCO High Pressure Cut Out Switch
LPCO Low Pressure Cut Out Switch

Y
C
R

Schematic Abbreviation Descriptions

CC

ECB

HTCO

LOGIC

R

CC Compressor Cont actor
ECB Electro nic Control Board

(Defrost or Time Delay)

Wiring Schematic - 3-Wire Comfort Alert Module

LPCO

C

HPCO

HIGH VOLTAGE!
Disconnect ALL power before servicing
or installing. Multiple power sources
may be present. Failure to do so may
cause property damage, personal injury
or death.

The CoreSense™ module is self-contained with no required exter-

Y1

nal sensors and works with any residential condensing unit that
has a Copeland Scroll™ compressor inside.

Once attached, CoreSense™ provides around-the-clock monitor­ing for common electrical problems, compressor defects and
broad system faults. If a glitch is detected, an LED indicator
flashes the proper alert codes to help you quickly pinpoint the
problem. See Diagnostic Table: 3-Wire CoreSense™ Module on

following pages.)

82

SERVICING

DIAGNOSTICS TABLE: 2-WIRE COMFORT ALERT™ MODULE

Status LED Status LED Description Status LED Troubleshooting Information

Green “POWER” Module has power

Red “TRIP”

Yellow “ALERT” Long Run Time

Flash Code 1

Yellow “ALERT” System Pressure Trip

Flash Code 2

Yellow “ALERT” Short Cycling

Flash Code 3

Yellow “ALERT” Locked Rotor

Flash Code 4

Yellow “ALERT” Open Circuit

Flash Code 5

Yellow “ALERT” Open Start Circuit

Flash Code 6

Yellow “ALERT” Open Run Circuit

Flash Code 7

Yellow “ALERT” Low Voltage

Flash Code 9

Thermostat demand signal 1. Compress or protector is open

Y1 is present, but the 2. Outdoor unit power disconnect is open

com pressor is not 3. Com pressor circuit breaker or fuse(s) is open

running 4. Broken wire or connec tor is not making contac t

Compressor is 2. Evaporator blower is not running

running extremely 3. Evaporator coil is frozen

long run cy cles 4. Faulty metering device

Discharge or suction 2. Condenser coil poor air circulation (dirty, block ed, damaged)

pressure out of limits or 3. Condenser fan is not running

compressor overloaded 4. Return air duct has substantial leakage

Compres sor is running 2. Time delay relay or control board defective

only briefly 3. If high pressure switch present go to Flash Code 2 information

Current only in run circuit 2. Open circuit in compress or start wiring or connections

Current only in start c ircuit 2. Compress or run winding is dam aged

Control circuit < 17VAC 2. Low line voltage (contact utility if voltage at disconnect is low)

Supply voltage is present at module terminals

5. Low pressure switch open if present in system

6. Compressor contactor has failed open

1. Low refrigerant charge

5. Condenser coil is dirty

6. Liquid line restriction (filter drier block ed if present in system)

7. Thermostat is malfunctioning

1. High head press ure

5. If low pressure switc h present in system,

check Flash Code 1 information

1. Thermostat demand signal is intermittent

4. If low pressure switch present go to Flash Code 1 information

1. Run capacitor has failed

2. Low line voltage (contact utility if voltage at disconnect is low)

3. Exces sive liquid refrigerant in compressor

4. Compressor bearings are seized

1. Outdoor unit power disc onnect is open

2. Compressor circuit breaker or fuse(s) is open

3. Compressor contactor has failed open

4. High pressure switch is open and requires manual reset

5. Open circuit in compress or supply wiring or connections

6. Unusually long compressor protector reset time

due to extreme ambient temperature

7. Compressor windings are damaged

1. Run capacitor has failed

3. Compressor start winding is damaged

1. Open circuit in compress or run wiring or connections

1. Control circuit transformer is overloaded

• FLASH CODE NUMBER CORRESPONDS TO A NUMBER OF LED FLASHES, FOLLOWED BY A PAUSE AND THEN REPEATED

• TRIP AND ALERT LEDS FLASHING AT SAME TIME MEANS CONTROL CIRCUIT VOLTAGE IS TOO LOW FOR OPERATION.

• LAST ALERT FLASH CODE IS DISPLAYED FOR 1 MINUTE AFTER MODULE IS POWERED ON.

83

SERVICING

Once attached, CoreSense™ provides around-the-clock monitor­ing for common electrical problems, compressor defects and
broad system faults. If a glitch is detected, an LED indicator
flashes the proper alert codes to help you quickly pinpoint the
problem. See Diagnostic Table: 2-Wire Comfort Alert™ Module on

following pages.)

Indoor
Unit

HTCO H igh Temperature Cut Out Switch
HPCO High Pressure Cut Out Switch
LPCO Low Pres sure Cut Out Switch

C
Y

Schematic Abbreviation Descriptions

CC Compre ssor Contactor
ECB Electronic Control Board

(Defrost or Time Delay)

Wiring Schematic - 3-Wire CoreSense™ Alert Module

Reset
Switch

Run/Alert

LED

Trip/Lock-Out

Red LED

Protection

Output

Data Port

One

Current

Sensor

Schematic Abbreviation Descriptions

HTCO High Temperature Cut Out Switch

HPCO High Pres sure Cut Out Switch

LPCO Low Pressure Cut Out Switch

CC Compressor Contactor
ECB Electronic Control Board

Wiring Schematic - 2-Wire CoreSense™ Module

(Defrost or Time Delay)

DIAGNOSTICS - 2-WIRE MODULE

Applies to ASX130[18-60]CA, ASX140[18-36]1CA,

ASX140421DA, and ASX140[48-60]1BA units

HIGH VOLTAGE!
Disconnect ALL power before servicing
or installing. Multiple power sources
may be present. Failure to do so may
cause property damage, personal injury
or death.

The CoreSense™ module is self-contained with no required exter­nal sensors and works with any residential condensing unit that
has a Copeland Scroll™ compressor inside.

84

SERVICING

DIAGNOSTICS TABLE: CORESENSE

Flash code number corresponds to the number of LED flashes, followed by a pause and then repeated.

TRIP and ALERT LEDs flashing at the same time mean control circuit voltage is too low for operation.

™ MODULE

85

SERVICING

DIAGNOSTICS TABLE: CORESENSE™ MODULE (CONT.)

Flash code number corresponds to the number of LED flashes, followed by a pause and then repeated.

TRIP and ALERT LEDs flashing at the same time mean control circuit voltage is too low for operation.

86

SERVICING

Table 1 - Quick Reference Table

87

SERVICING

S-15 CHECKING CAPACITOR

CAPACITOR, RUN

A run capacitor is wired across the auxiliary and main windings
of a single phase permanent split capacitor motor. The capaci­tors primary function is to reduce the line current while greatly
improving the torque characteristics of a motor. This is accom­plished by using the 90° phase relationship between the capaci­tor current and voltage in conjunction with the motor windings,
so that the motor will give two phase operation when connected
to a single phase circuit. The capacitor also reduces the line
current to the motor by improving the power factor.

The line side of this capacitor is marked with "COM" and is wired
to the line side of the circuit.

CAPACITOR, START

SCROLL COMPRESSOR MODELS

In most cases hard start components are not required on Scroll
compressor equipped units due to a non-replaceable check valve
located in the discharge line of the compressor. However, in
installations that encounter low lock rotor voltage, a hard start
kit can improve starting characteristics and reduce light dim­ming within the home. Only hard start kits approved by Amana
brand or Copeland should be used. "Kick Start" and/or "Super
Boost" kits are not approved start assist devices.

The discharge check valve closes off high side pressure to the
compressor after shut down allowing equalization through the
scroll flanks. Equalization requires only about 1/2 second.

To prevent the compressor from short cycling, a Time Delay
Relay (Cycle Protector) has been added to the low voltabe
circuit.

S-15ARESISTANCE CHECK USING A DIGITAL MULTI-

METER

Figure 1 Figure 2

4. Reading will immediately return to the OL = (Open Line)
(Figure 2). Every attempt of Step 2 will show the same result

®

as was in step 4 and Step 5. This indicates that the capacitor
is good.

5. If there is no Change, then capacitor is dead and must be
replaced.

Check for Analog Meter

A. Good Condition - indicator swings to zero and slowly
returns to infinity. (Start capacitor with bleed resistor will
not return to infinity. It will still read the resistance of the
resistor).

B. Shorted - indicator swings to zero and stops there - replace.

C. Open - no reading - replace. (Start capacitor would read
resistor resistance.)

HIGH VOLTAGE!
Disconnect ALL power before servicing
or installing. Multiple power sources
may be present. Failure to do so may
cause property damage, personal injury
or death.

Check for Digital Test

1. Set the meter on Ohm range (Set it at lease 1000 Ohm

=1k).

WARNING

Discharge capacitor through a 20 to 30 OHM
resistor before handling.

2. Connect the Meter leads to the Capacitor terminals.

3. Digital meter will show a reading momentarily (Figure 1).
Note the reading.

88

S-15B CAPACITANCE CHECK USING A DIGITAL MULTI-

METER (IN CAPACITANCE MODE)

WARNING

Discharge capacitor through a 20 to 30 OHM
resistor before handling.

NOTE: You can do this test with a multi-meter if you have a
Capacitance meter on your multi-meter.

1. Remove the capacitor from the circuit.

2. Now Select "Capacitance" on your multi-meter.

3. Now connect the capacitor terminals to the multi-meter
leads.

4. If the reading is near to the actual value of the capacitor (i.e.
the printed value on the capacitor). The capacitor is good.
(Note that the reading may be less than the actual printed
value of the capacitor).

5. If you read a significantly lower capacitance or none at all,
then capacitor is dead and must be replaced.

SERVICING

A

S-16ACHECKING FAN AND BLOWER MOTOR WINDINGS

(PSC MOTORS)

The auto reset fan motor overload is designed to protect the motor
against high temperature and high amperage conditions by
breaking the common circuit within the motor, similar to the
compressor internal overload. However, heat generated within
the motor is faster to dissipate than the compressor, allow at
least 45 minutes for the overload to reset, then retest.

5. If line voltage is present, reinsert the 5-pin connector and
remove the 16-pin connector.

6. Check for signal (24 volts) at the transformer.

7. Check for signal (24 volts) from the thermostat to the "G"
terminal at the 16-pin connector.

8. Using an ohmmeter, check for continuity from the #1 & #3
(common pins) to the transformer neutral or "C" thermostat
terminal. If you do not have continuity, the motor may
function erratically. Trace the common circuits, locate and
repair the open neutral.

HIGH VOLTAGE!
Disconnect ALL power before servicing
or installing. Multiple power sources
may be present. Failure to do so may
cause property damage, personal injury
or death.

9. Set the thermostat to "Fan-On". Using a voltmeter, check for
24 volts between pin # 15 (G) and common.

10. Disconnect power to compressor. Set thermostat to call for
cooling. Using a voltmeter, check for 24 volts at pin # 6 and/
or #14.

11. Set the thermostat to a call for heating. Using a voltmeter,
check for 24 volts at pin #2 and/or #11.

1. Remove the motor leads from its respective connection points
and capacitor (if applicable).

2. Check the continuity between each of the motor leads.

3. Touch one probe of the ohmmeter to the motor frame (ground)
and the other probe in turn to each lead.

If the windings do not test continuous or a reading is obtained
from lead to ground, replace the motor.

S-16B CHECKING FAN AND BLOWER MOTOR (ECM

MOTORS)

1

2

3

4

5

Lines 1 and 2 will be connected
for 12OVAC Power Connector

}

applications only

Gnd

AC Line Connection

AC Line Connection

An ECM is an Electronically Commutated Motor which offers many
significant advantages over PSC motors. The ECM has near zero
rotor loss, synchronous machine operation, variable speed, low
noise, and programmable air flow. Because of the sophisticated
electronics within the ECM motor, some technicians are inti­mated by the ECM motor; however, these fears are unfounded. GE
offers two ECM motor testers, and with a VOM meter, one can
easily perform basic troubleshooting on ECM motors. An ECM

OUT - OUT +

DJUST +/-

Y1 Y/Y2

816

7

15

6

14

G (FAN)

motor requires power (line voltage) and a signal (24 volts) to
operate. The ECM motor stator contains permanent magnet. As a
result, the shaft feels "rough" when turned by hand. This is a
characteristic of the motor, not an indication of defective bear-

COOL

DELAY

5

13

EM Ht/W2

4

12

24 Vac (R)

ings.

3

11

COMMON2

WARNING

Line Voltage now present.

1. Disconnect the 5-pin connector from the motor.

2. Using a volt meter, check for line voltage at terminals #4 & #5

W/W1

COMMON1 O (REV VALVE)

16-PIN ECM HARNESS CONNECTOR

2

19

HEAT

10

BK/PWM (SPEED)

at the power connector. If no voltage is present:

3. Check the unit for incoming power See section S-1.

4. Check the control board, See section S-40.

If you do not read voltage and continuity as described, the
problem is in the control or interface board, but not the motor.
If you register voltage as described , the ECM power head is
defective and must be replaced.

89

SERVICING

S-16C CHECKING ECM MOTOR WINDINGS

HIGH VOLTAGE!
Disconnect ALL power before servicing
or installing. Multiple power sources
may be present. Failure to do so may
cause property damage, personal injury
or death.

1. Disconnect the 5-pin and the 16-pin connectors from the ECM
power head.

2. Remove the 2 screws securing the ECM power head and
separate it from the motor.

3. Disconnect the 3-pin motor connector from the power head
and lay it aside.

4. Using an ohmmeter, check the motor windings for continuity
to ground (pins to motor shell). If the ohmmeter indicates
continuity to ground, the motor is defective and must be
replaced.

5. Using an ohmmeter, check the windings for continuity (pin
to pin). If no continuity is indicated, the thermal limit (over
load) device may be open. Allow motor to cool and retest.

3-pin motor
connector

16-pin
connector

For most applications, the settings are to be changed according
to the electric heat size and the outdoor unit selection.

The MBE/AEPF products use a General Electric ECMTM motor. This
motor provides many features not available on the traditional
PSC motor. These features include:

• Improved Efficiency

• Constant CFM

• Soft Start and Stop

• Improved Humidity Control

MOTOR SPEED ADJUSTMENT

Each ECM™ blower motor has been preprogrammed for operation
at 4 distinct airflow levels when operating in Cooling/Heat Pump
mode or Electric Heat mode. These 4 distinct levels may also be
adjusted slightly lower or higher if desired. The adjustment
between levels and the trim adjustments are made by changing
the dipswitch(s) either to an "OFF" or "ON" position.

DIPSWITCH FUNCTIONS

The MBE / AEPF air handler motors have an electronic control that
contains an eight (8) position dip switch. The function of these
dipswitches are shown in Table 1.

Dipswitch Functions

Dipswitch

Number

1

2

3N/A

4 I ndoor Thermostat

5Cooling & Heat

6 Pump CFM

7

8

Function

Electric He at

CFM Trim Adju st

Table 1

5-pin
connector

S-16DECM CFM ADJUSTMENTS MBE / AEPF

MBE MOTOR

This section references the operation characteristics of the MBE/
AEPF models motor only. The ECM control board is factory set
with the dipswitch #4 in the “ON” position and all other dipswitches
are factory set in the “OFF” position. When MBE/AEPF are used
with 2-stage cooling units, dipswitch #4 should be in the "OFF"
position.

90

CFM DELIVERY

Tables 2, 3, 5 and 6 show the CFM output for dipswitch combina­tions 1-2, and 5-6.

Electric Heat Operation

Model Switch 1 Switch 2 CFM

MBE1200

OFF

ON

OFF

OFF
OFF

ON

1,200
1,000

800

ON ON 600

MBE1600

OFF

ON

OFF

OFF
OFF

ON

1,600
1,400
1,200

ON ON 1,000

MBE2000

OFF

OFF

ON OFF 1,800

OFF ON 1,600

2,000

ON ON 1,200

Table 2

SERVICING

Cooling/Heat Pump Operation

Model Switch 5 Switch 6 CF M

1,200
1,000

800

1,600
1,400
1,200

2,000
1,800
1,600

MBE 1200

MBE 1600

MBE 2000

OFF

ON

OFF

ON ON 600

OFF

ON

OFF

ON ON 1,000

OFF

ON

OFF

ON ON 1,200

OFF

OFF

ON

OFF

OFF

ON

OFF
OFF

ON

Table 3

THERMOSTAT “FAN ONLY” MODE

During Fan Only Operations, the CFM output is 30% of the cooling
setting.

Dipswitch Functions

The AEPF air handler motor has an electronic control that con­tains an eight (8) position dip switch. The function of these
dipswitches are shown in Table 9.

Dipswitch Number Function

1
2
3N/A
4 Indoor Thermostat
5
6
7
8

Table 9

Electric Heat

Cooling & Heat Pump CFM

CFM Trim Adjust

Model

AEPF1830

AEPF3036

AEPF3137

AEPF4260

Switch Switch

1278

OFF OFF OFF OFF 1 100 1210

ON OFF OFF OFF 890 935

OFF ON OFF OFF 700 770

OFF OFF OFF OFF 2050 2150

ON OFF OFF OFF 1750 1835

OFF ON OFF OFF 1600 1680

ON ON OFF OFF 1200 1260

ON ON OFF ON 1020 1070

Emergecny

(Electric)

Hea t

Hea t Pump

w/Backup

Hea t

Table 10

Model

AEP F183

0

AEPF3036 ON OFF OFF OFF 4 1580

AEPF3137 OFF ON OFF OFF 3 ½ 1480

AEPF4260 ON ON OFF OFF 3 1200

Sw itch Sw itch

5678

OFF OFF OFF OFF 2 ½ 1100

ON OFF OFF OFF 2 800

OFF ON OFF OFF 1 ½ 60 0

OFF OFF OFF OFF 5 1 800

ON ON OFF ON 2 ½ 1020

Nom ina l

Cooling

Tonnage

CFM

Table 11

Thermostat “Fan Only Mode”

During “Fan Only Mode” operation, the CFM output is 30% of the
cooling setting.

CFM Trim Adjust

Minor adjustments can be made through the dip switch combi­nation of 7-8. The following Table 12 shows the switch position
for this feature.

CFM Delivery

Tables 10-Electric Heat and 11-Cooling/Heat Pump show the CFM

output for dipswitch combinations 1-2, and 5-6.

CFM Switch 7 Switch 8

+10 % ON OFF

-15% OFF ON

Humidity Control

When using a Humidistat (normally closed), cut jumper PJ6 on the
control board. The Humidistat will only affect cooling airflow by
adjusting the Airflow to 85%.

91

SERVICING

(

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and

plug

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in

return

ducts

cabinet

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different

92

have completel

- Turn pow er OFF prior to repair.

Wait 5 minutes af ter

disconnec ting pow er before

opening motor.

- Handle electronic motor/c ontrol w ith care.

- Turn pow er OFF prior to repair.

Wait 5 minutes af ter

disconnec ting pow er before

opening motor.

- Handle electronic motor/c ontrol w ith care.

- Check 230 Vac pow er at motor.

- Ch ec k low vo ltag e ( 24 Va c R t o C) at motor .

- Check low voltage connec tions

(G, Y, W, R, C) at motor.

- Check for unseated pins in connec tors

on motor harnes s.

- Test w ith a temporary jumper betw een R - G.

-

- Check for loose motor mount.

- Make sure blow er w heel is tight on shaf t.

- Perform motor/control replacement chec k,

ECM motors only.

- Turn pow er OFF prior to repair.

- Check line voltage for variation or "sag".

- Check low voltage connec tions

(G, Y, W, R, C) at

motor, uns eated pins in motor

harness connectors.

- Check-out sy stem controls - Thermostat.

- Perform Moisture Check.*

- Turn pow er OFF prior to repair.

.

.

capac

look alike, different modules ma

,
en
a

h the

oo muc

ow
r

modes. Even thou

ow a
or

e harnesses with "drip loop" under motor.

ec

-

- Does removing panel or filter

reduce "puffing"?

- Check/replace f ilter.

- Check/correct duct restrictions.

- Adjust to correct blow er speed setting.

s.

resu
e

uce unexpec

rammed for specific operatin

pro

pro

ma

.- Arran

---- ---- ----

---- ---- ----

es an

are factor

CHART CONTINUED ON NEXT PAGE

warran
uc

pro

s a

- Manual disconnect sw itch off or

door sw itch open.

- Blow n fuse or circ uit breaker.

- 24 Vac w ires misw ired.

- Unseated pins in w iring

harness connec tors.

- Bad motor/control module.

- Moisture present in motor or control module.

- Loose motor mount.

- Blow er w heel not tight on motor shaft.

- Bad motor/control module.

- Variation in 230 Vac to motor.

- Unseated pins in w iring harness

connectors.

- Erra tic CFM c omma nd fr om

"BK" terminal.

- Improper thermostat connection or setting.

- Moisture present in motor/control module.

- Incorrec t or dirty filter(s ).

- Incorrec t supply or return ductw ork.

- Incorrec t blow er speed setting.

equipment manufacturer

e vo
u

mo
ro

con
or

. -

or as recommended b

Troubleshooting Chart for GE/Regal-Beloit ECM Variable Speed Air Circulator Blower Motors

- This is normal start-up for

variable speed motor.

- No move ment.

- Motor rocks,

but w on't start.

- It is normal for motor to

oscillate w ith

no load on shaft.

- Varies up and dow n

or intermittent.

- "Hunts" or "puff s" at

high CFM (speed).

e

u

n p
ra

e

ensa

Symptom Fault Description(s) Possible Causes Corrective Action Cautions and Notes

- Motor rocks

slig htly

w hen starting.

- Motor w on't

start.

- Motor

oscillates up &

dow n w hile

being tested

off of blow er.

- Motor starts,

but runs

erratically.

s con

-

*Moisture Check

- Connectors are oriented "down"

mo

e wron

n
s

e:
o

an

You must use the correct replacement control/motor module since the

mpor

functionality. The ECM variable speed motors are c

-

Note:

SERVICING

(

y

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(t

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Check

for

undercharged

condition

Check

and

plug

leaks

in

return

ducts

cabinet

I

t

t

N

t

U

i

g

th

g

t

/

t

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d

l

id

ll

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t

ti

d

y

d

t

d

lt

y

y

g

g

g

y

y

y

different

have completel

- Turn pow er OFF prior to repair.

Wait 5 minutes af ter

disconnec ting pow er before

opening motor.

- Handle electronic motor/control

w ith care.

- Turn pow er OFF prior to repair.

Wait 5 minutes af ter

disconnec ting pow er before

opening motor.

- Handle electronic motor/control

w ith care.

- Turn pow er OFF prior to repair.

- Check low voltage (Thermostat)

w ires and connections.

- Verify f an is not in delay mode -

w ait until delay complete.

- Perform motor/control replacement

chec k, ECM motors only.

- Is fan in delay mode? - w ait until delay time

complete.

- Perform motor/control replacement chec k, ECM

motors only.

- Check for Triac sw itched t'stat

or solid state relay.

CHART CONTINUED FROM PREVIOUS PAGE.

- 24 Vac w ires miswired or loose.

- "R" missing/not connec ted at motor.

- Fan in delay mode.

Troubleshooting Chart for GE/Regal-Beloit ECM Variable Speed Air Circulator Blower Motors

- Stay s a t low CFM despite

system call for cool

or heat CFM.

Symptom Fault Des cription(s) Possible Causes Corre ctive Action Cautions and Notes

- "R" missing/not connec ted at motor.

- Fan in delay mode.

- Stays at high CFM.

- Motor starts,

but runs

erratically.

- Current leakage from controls

into G, Y, or W.

- Blow er w on't shut of f.

- Turn pow er OFF prior to repair.

- Check/replace f ilter.

- Check/correct duct restrictions.

- Adjust to correct blower speed setting.

- Turn pow er OFF prior to repair.

- Check for loose blow er housing,

panels, etc .

- Check for air w histling thru seams in

ducts , cabinets or panels.

- Check for cabinet/duct deformation.

- Turn pow er OFF prior to repair.

- Does removing panel or filter

reduce "puffing"?

- Check/replace f ilter.

- Turn pow er OFF prior to repair.

Wait 5 minutes af ter

disconnec ting pow er before

opening motor.

- Handle electronic motor/control

w ith care.

.

.

capac

look alike, different modules ma

,
en
a

h the

oo muc

ow
r

modes. Even thou

ow a
or

e harnesses with "drip loop" under motor.

ec

-

- Check/correct duct restrictions.

- Adjust to correct blower speed setting.

- Replace motor and perform

Moistur e Check.*

s.

resu
e

uce unexpec

rammed for specific operatin

pro

pro

ma

.- Arran

es an

are factor

warran
uc

pro

s a

- High static cr eating high blow er speed.

- Incorrect supply or return ductw ork.

- Incorrect or dirty filter(s).

- Incorrect blow er speed setting.

- Loose blow er housing, panels, etc.

- High static cr eating high blow er

speed.

- Air leaks in ductw ork, cabinets,

or panels.

- High static cr eating high blow er speed.

- Incorrect or dirty filter(s).

- Incorrect supply or return ductw ork.

- Incorrect blow er speed setting.

- Moisture in motor/control module.

equipment manufacturer

e vo
u

mo
ro

con
or

. -

or as recommended b

e

- Air noise.

- Noisy blow er or cabinet.

- "Hunts" or "puff s" at

high CFM (speed).

- Motor failure or

malfunction has

occurred and moisture

is present.

u

n p
ra

e

ensa

s con

*Moisture Check

-

- Evidence of

- Excessive

noise.

Moisture.

- Connectors are oriented "down"

mo

e wron

n
s

e:
o

an

You must use the correct replacement control/motor module since the

mpor

-

functionality. The ECM variable speed motors are c

Note:

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SERVICING

S-16E BLOWER PERFORMANCE DATA

SPEED STAT IC

0.1 1,240 1,500 1,800 2,160

0.2 1,170 1,460 1,740 2,080

HIGH

MEDIUM

LOW

NOTE: External static is for blower @ 230 Volts. It does not include Coil, Air Filter or Electric Heaters.

0.3 1,120 1,360 1,680 1,990

0.4 1,060 1,280 1,610 1,890

0.5 980 1,200 1,520 1,790

0.6 900 1,110 1,430 1,690

0.1 900 1,380 1,540 1,730

0.2 850 1,320 1,490 1,670

0.3 790 1,270 1,450 1,590

0.4 740 1,200 1,400 1,520

0.5 680 1,140 13,560 1,420

0.6 605 1,040 1,280 1,320

0.1 650 1,170 1,130 1,520

0.2 590 1,130 1,100 1,450

0.3 540 1,080 1,070 1,360

0.4 500 1,020 1,030 1,290

0.5 430 950 990 1,200

0.6 330 830 930 1,090

MBR800**-*

SCFM

MBR1200**-*

SCFM

MBR1600**-*

SCFM

MBR2000**-*

SCFM

S-16F CHECKING HIGH EFFICIENCY MOTORS

The motor is a one piece, fully encapsulated, 3 phase brushless
DC (single phase AC input) motor with ball bearing construction.

1. Using a voltmeter, check for 230 volts to the motor connec­tions L and N. If 230 volts is present, proceed to step 2. If 230
volts is not present, check the line voltage circuit to the motor.

2. Using a voltmeter, check for 24 volts from terminal C to either
terminal 1, 2, 3, 4, or 5, depending on which tap is being used,
at the motor. If voltage present, proceed tostep 3. If no voltage,
check 24 volt circuit to motor.

3. If voltage was present in steps 1 and 2, the motor has failed
and will need to be replaced.

NOTE: When replacing motor, ensure the belly band is
between the vents on the motor and the wiring has the proper
drip loop to prevent condensate from entering the motor.

High Voltage
Connections

3/16"

C

123

LGN

4

5

Low Voltage Connections

1/4”

MOTOR CONNECTIONS

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S-16G EEM BLOWER REPLACEMENT

For AWUF19-25, AWUF31-32, and AWUF37 Air Handlers.

1. Disconnect power at main electrical panel.

2. Remove front access panel.

3. Remove the two screws on each side holding the lower control
box and move out of the way to give access to the blower
assembly

6. Install cardboard or rug over coil to protect fins from dam­age.

5. Loosen or remove set screw on blower wheel hub and ensure
the wheel slides freely on the shaft of the motor.

7. Remove the three 3/8" screws holding the blower in place.

8. Lower blower onto coil.

9. Slide blower assembly all the way to the left side of cabinet.

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SERVICING

10. Remove the bolts holding the motor bracket to the blower and
slide out of blower shell.

S-17 CHECKING COMPRESSOR

WARNING

Hermetic compressor electrical terminal venting can
be dangerous. When insulating material which
supports a hermetic compressor or electrical terminal
suddenly disintegrates due to physical abuse or as a
result of an electrical short between the terminal and
the compressor housing, the terminal may be
expelled, venting the vapor and liquid contents of the
compressor housing and system.

If the compressor terminal PROTECTIVE COVER and gasket (if
required) are not properly in place and secured, there is a remote
possibility if a terminal vents, that the vaporous and liquid
discharge can be ignited, spouting flames several feet, causing
potentially severe or fatal injury to anyone in its path.

This discharge can be ignited external to the compressor if the
terminal cover is not properly in place and if the discharge
impinges on a sufficient heat source.

Ignition of the discharge can also occur at the venting terminal
or inside the compressor, if there is sufficient contaminant air
present in the system and an electrical arc occurs as the terminal
vents.

Ignition cannot occur at the venting terminal without the pres­ence of contaminant air, and cannot occur externally from the
venting terminal without the presence of an external ignition
source.

Therefore, proper evacuation of a hermetic system is essential
at the time of manufacture and during servicing.

To reduce the possibility of external ignition, all open flame,
electrical power, and other heat sources should be extinguished
or turned off prior to servicing a system.

11. Replace the motor and reinstall blower and control box.

12. Reconnect power and test operation.

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SERVICING

S-17ARESISTANCE TEST

Each compressor is equipped with an internal overload.

The line break internal overload senses both motor amperage
and winding temperature. High motor temperature or amperage
heats the disc causing it to open, breaking the common circuit
within the compressor on single phase units.

Heat generated within the compressor shell, usually due to
recycling of the motor, high amperage or insufficient gas to cool
the motor, is slow to dissipate. Allow at least three to four hours
for it to cool and reset, then retest.

Fuse, circuit breaker, ground fault protective device, etc. has not
tripped -

HIGH VOLTAGE!
Disconnect ALL power before servicing
or installing. Multiple power sources
may be present. Failure to do so may
cause property damage, personal injury
or death.

1. Remove the leads from the compressor terminals.

WARNING

Hermetic compressor electrical terminal venting can
be dangerous. When insulating material which
supports a hermetic compressor or electrical terminal
suddenly disintegrates due to physical abuse or as a
result of an electrical short between the terminal and
the compressor housing, the terminal may be
expelled, venting the vapor and liquid contents of the
compressor housing and system.

S-17B GROUND TEST

If fuse, circuit breaker, ground fault protective device, etc., has
tripped, this is a strong indication that an electrical problem
exists and must be found and corrected. The circuit protective
device rating must be checked, and its maximum rating should
coincide with that marked on the equipment nameplate.

With the terminal protective cover in place, it is acceptable to
replace the fuse or reset the circuit breaker ONE TIME ONLY to see
if it was just a nuisance opening. If it opens again, DO NOT
continue to reset.

Disconnect all power to unit, making sure that all power legs are
open.

1. DO NOT remove protective terminal cover. Disconnect the
three leads going to the compressor terminals at the nearest
point to the compressor.

2. Identify the leads and using an ohmmeter on the R x 10,000
scale or the highest resistance scale on your ohmmeter check
the resistance between each of the three leads separately to
ground (such as an unpainted tube on the compressor).

3. If a ground is indicated, then carefully remove the compres­sor terminal protective cover and inspect for loose leads or
insulation breaks in the lead wires.

4. If no visual problems indicated, carefully remove the leads
at the compressor terminals.

5. Carefully retest for ground, directly between compressor
terminals and ground.

6. If ground is indicated, replace the compressor. The resistance
reading should be infinity. If there is any reading on meter,
there is some continuity to ground and compressor should
be considered defective.

2. Using an ohmmeter, test continuity between terminals S-R, C­R, and C-S, on single phase units or terminals T2, T2 and T3,
on 3 phase units.

C

OHMMETER

TESTING COMPRESSOR WINDINGS

If either winding does not test continuous, replace the compres­sor.

NOTE: If an open compressor is indicated, allow ample time for
the internal overload to reset before replacing compressor.

S

COMP

R

OHMMETER

WARNING

Damage can occur to the glass embedded terminals if
the leads are not properly removed. This can result in
terminal and hot oil discharging.

S-17C UNLOADER TEST PROCEDURE

A nominal 24-volt direct current coil activates the internal
unloader solenoid. The input control circuit voltage must be 18
to 28 volt ac. The coil power requirement is 20 VA. The external
electrical connection is made with a molded plug assembly. This
plug contains a full wave rectifier to supply direct current to the
unloader coil.

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SERVICING

Y

UNLOADER SOLENOID

Unloader Test Procedure

If it is suspected that the unloader is not working, the following
methods may be used to verify operation.

1. Operate the system and measure compressor current. Cycle
the unloader ON and OFF at 10 second intervals. The com­pressor amperage should go up or down at least 25 percent.

2. If step one does not give the expected results, shut unit off.
Apply 18 to 28 volt ac to the unloader molded plug leads and
listen for a click as the solenoid pulls in. Remove power and
listen for another click as the unloader returns to its original
position.

3. If clicks can’t be heard, shut off power and remove the control
circuit molded plug from the compressor and measure the
unloader coil resistance. The resistance should be 32 to 60
ohms, depending on compressor temperature.

4. Next check the molded plug.

A. Voltage check: Apply control voltage to the plug wires

(18 to 28 volt ac). The measured dc voltage at the
female connectors in the plug should be around 15 to
27 vdc.

B. Resistance check: Measure the resistance from the

end of one molded plug lead to either of the two female
connectors in the plug. One of the connectors should
read close to zero ohms while the other should read
infinity. Repeat with other wire. The same female
connector as before should read zero while the other
connector again reads infinity. Reverse polarity on
the ohmmeter leads and repeat. The female connector
that read infinity previously should now read close to
zero ohms.

C. Replace plug if either of these test methods doesn’t

show the desired results.

S-17DOPERATION TEST

If the voltage, capacitor, overload and motor winding test fail to
show the cause for failure:

(Molded Pl ug)

HIGH VOLTAGE!
Disconnect ALL power before servicing
or installing. Multiple power sources
may be present. Failure to do so may
cause property damage, personal injury
or death.

1. Remove unit wiring from disconnect switch and wire a test
cord to the disconnect switch.

NOTE: The wire size of the test cord must equal the line wire size
and the fuse must be of the proper size and type.

2. With the protective terminal cover in place, use the three
leads to the compressor terminals that were disconnected at
the nearest point to the compressor and connect the common,
start and run clips to the respective leads.

3. Connect good capacitors of the right MFD and voltage rating
into the circuit as shown.

4. With power ON, close the switch.

WARNING

Line Voltage now present.

A. If the compressor starts and continues to run, the cause for

failure is somewhere else in the system.

B. If the compressor fails to start - replace.

COPELAND COMPRESSOR

03 A 12345 L

EAR

S-17E CHECKING 3-PHASE SCROLL COMPRESSOR
ROTATION

Verify the proper rotation of Copeland scroll compressors as
follows:

NOTE: The compressor may run backwards (noisy operation)
for 1 or 2 seconds at shutdown. This is normal and does not
harm the compressor.

1. Install gauges and verify that the suction pressure drops
while the discharge pressure increases.

2. Listen for normal compressor sound levels. Reverse rotation
results in elevated or unusual sound levels.

3. Reverse rotation will result in substantially reduced amp
draw from tabulated values.

To correct improper rotation, switch any two power supply leads
at the outdoor unit contactor.

MONTH

SERIAL

NUMBER

PLANT

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SERVICING

The 3-phase scroll compressors are direction of rotation
sensitive. They will rotate in either direction depending on
the phasing of the power. There is no negative impact on
durability caused by operating 3-phase compressors in
reversed rotation. The compressor's internal protector will
trip, de-energizing the compressor. Continued operation of
3-phase scroll compressors with the rotation reversed will
contribute to compressor failure. All 3-phase scroll com­pressors should be checked for correct phase rotation.

S-18 TESTING CRANKCASE HEATER (OPTIONAL ITEM)

The crankcase heater must be energized a minimum of four (4)
hours before the condensing unit is operated.

Crankcase heaters are used to prevent migration or accumula­tion of refrigerant in the compressor crankcase during the off
cycles and prevents liquid slugging or oil pumping on start up.

A crankcase heater will not prevent compressor damage due to a
floodback or over charge condition.

WARNING

Disconnect ALL power before servicing.

1. Disconnect the heater lead in wires.

2. Using an ohmmeter, check heater continuity - should test
continuous. If not, replace.

NOTE: The positive temperature coefficient crankcase heater is
a 40 watt 265 voltage heater. The cool resistance of the heater
will be approximately 1800 ohms. The resistance will become
greater as the temperature of the compressor shell increases.

S-21 CHECKING REVERSING VALVE AND SOLENOID

Occasionally the reversing valve may stick in the heating or
cooling position or in the mid-position.

When stuck in the mid-position, part of the discharge gas from
the compressor is directed back to the suction side, resulting in
excessively high suction pressure. An increase in the suction
line temperature through the reversing valve can also be mea­sured. Check operation of the valve by starting the system and
switching the operation from COOLING to HEATING cycle.

If the valve fails to change its position, test the voltage (24V) at
the valve coil terminals, while the system is on the COOLING
cycle.

If no voltage is registered at the coil terminals, check the
operation of the thermostat and the continuity of the connecting
wiring from the "O" terminal of the thermostat to the unit.

S-24 TESTING DEFROST CONTROL

To check the defrost control for proper sequencing, proceed as
follows: With power ON; unit not running.

1. Jumper defrost thermostat by placing a jumper wire across
the terminals "DFT" and "R"/"R-DFT" at defrost control
board.

2. Connect jumper across test pins on defrost control board.

3. Set thermostat to call for heating. System should go into
defrost within 21 seconds.

4. Immediately remove jumper from test pins.

5. Using VOM check for voltage across terminals "C & O". Meter
should read 24 volts.

6. Using VOM check for voltage across fan terminals DF1 and
DF2 on the board. You should read line voltage (208-230 VAC)
indicating the relay is open in the defrost mode.

7. Using VOM check for voltage across "W"/"W2" & "C" termi­nals on the board. You should read 24 volts.

8. If not as above, replace control board.

9. Set thermostat to off position and disconnect power before
removing any jumpers or wires.

NOTE: Remove jumper across defrost thermostat before
returning system to service.

S-25 TESTING DEFROST THERMOSTAT

1. Install a thermocouple type temperature test lead on the tube
adjacent to the defrost control. Insulate the lead point of
contact.

2. Check the temperature at which the control closes its con­tacts by lowering the temperature of the control. Part #
0130M00009P which is used on 2 and 2.5 ton units should
close at 34°F ± 5°F. Part # 0130M00001P or B1370803 which
is used on 3 thru 5 ton units should close at 31°F ± 3°F.

3. Check the temperature at which the control closes its con­tacts by lowering the temperature of the control. Part #
0130M00085, which is used onunits with 5 mm coils, should
close at 30°F ± 5°F.

4. Check the temperature at which the control opens its contacts
by raising the temperature of the control. Part #0130M00009P
which is used on 2 and 2.5 ton units should open at 60°F ± 5°F.
Part # 0130M00001P or B1370803 which is used on 3 thru
5 ton units should open at 75°F ± 6°F.

5. Check the temperature at which the control opens its contacts
by raising the temperature of the control. Part # 0130M00085,
which is used on units with 5 mm coils, should open at 60°F
± 5°F.

6. If not as above, replace control.

SEQUENCE OF OPERATION

Refer to the installation instructions and wiring diagrams pro­vided with the MBR/AR*F for specific wiring connections and
system configuration.

MBR/AR*F WITH SINGLE STAGE CONDENSERS

1.0 Cooling Operation

1.1 On a demand for cooling, the room thermostat energizes “G”

and “Y” and 24Vac is supplied to “Y” at the condensing unit
and the “G” terminal on the EBTDR board.

1.2 The compressor and condenser fan are turned on and after

a 7 second on delay, the relay on the EBTDR board is energized
and the blower motor starts.

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SERVICING

1.3 When the cooling demand “Y” is satisfied, the room thermo-

stat removes the 24Vac from “G” and “Y”.

1.4 The compressor and condenser fan are turned off and after

a 65 second delay off, the relay on the EBTDR board is de­energized and the blower is turned off.

2.0 Heating Operation

2.1 On a demand for heat, the room thermostat energizes “W1”

and 24Vac is supplied to heat sequencer, HR1, on the heater
assembly.

2.2 The contacts M1 and M2 will close within 10 to 20 seconds

and turn on heater element #1. The normally closed
contacts on the EBTDR are also connected to terminal M1.
When M1 and M2 close, the blower motor will be energized
thru the normally closed contacts on the EBTDR board. At
the same time, if the heater assembly contains a second
heater element, HR1 will contain a second set of contacts,
M3 and M4, which will close to turn on heater element #2.

NOTE: If more than two heater elements are on the heater
assembly, it will contain a second heat sequencer, HR2,which
will control the 3rd and 4th heater elements if available. If the
first stage heat demand, “W1” cannot be satisfied by the heat
pump, the temperature indoors will continue to drop. The room
thermostat will then energize “W2” and 24Vac will be supplied
to HR2 on the heater assembly. When the “W2” demand is
satisfied, the room thermostat will remove the 24Vac from HR2.
The contacts on HR2 will open between 30 to 70 seconds and
heater elements #3 and #4 will be turned off. On most digital/

electronic thermostats, “W2” will remain energized until the
first stage demand “W1” is satisfied and then the “W1” and
“W2” demands will be removed.

2.3 When the “W1” heat demand is satisfied, the room thermo-

stat will remove the 24Vac from HR1. Both set of contacts
on the relay opens within 30 to 70 seconds and turn off the
heater element(s) and the blower motor.

MBR/AR*F WITH SINGLE STAGE HEAT PUMPS

3.0 Cooling Operation

On heat pump units, when the room thermostat set to the
cooling mode, 24Vac is supplied to “O” which energizes the
reversing valve. As long as the thermostat is set for cooling, the
reversing valve will be in the energized position for cooling.

3.1 On a demand for cooling, the room thermostat energizes “G”

and “Y” and 24Vac is supplied to “Y” at the heat pump and
the “G” terminal on the EBTDR board.

3.2 The heat pump turned on in the cooling mode and after a 7

second on delay, the relay on the EBTDR board is energized
and the blower motor starts.

3.3 When the cooling demand is satisfied, the room thermostat

removes the 24Vac from “G” and “Y”.

3.4 The heat pump is turned off and after a 65 second delay off,

the relay on the EBTDR board is de-energized and the blower
motor is turned off.

4.0 Heating Operation

On heat pump units, when the room thermostat set to the heating
mode, the reversing valve is not energized. As long as the
thermostat is set for heating, the reversing valve will be in the
de-energized position for heating except during a defrost cycle.
Some installations may use one or more outdoor thermostats
to restrict the amount of electric heat that is available above a
preset ambient temperature. Use of optional controls such as
these can change the operation of the electric heaters during the
heating mode. This sequenceof operation does not cover those
applications.

4.1 On a demand for first stage heat with heat pump units, the

room thermostat energizes “G” and “Y” and 24Vac is sup­plied to “Y” at the heat pump unit and the “G” terminal on the
EBTDR board. The heat pump is turned on in the heating mode
and the blower motor starts after a 7 second on delay.

4.2 If the first stage heat demand cannot be satisfied by the heat

pump, the temperature indoors will continue to drop. The
room thermostat will then energize terminal “W2’ for sec­ond stage heat and 24Vac will be supplied to heat sequencer
HR1 on the heater assembly.

4.3 HR1 contacts M1 and M2 will close will close within 10 to

20 seconds and turn on heater element #1. At the same time,
if the heater assembly contains a second heater element,
HR1 will contain a second set of contacts, M3 and M4, which
will close and turn on heater element #2. The blower motor
is already on as a result of terminal “G” on the EBTDR board
being energized for the first stage heat demand.

NOTE: If more than two heater elements are on the heater
assembly, it will contain a second heat sequencer, HR2, which
will control the 3rd and 4th heater elements if available. If the
second stage heat demand, “W2” cannot be satisfied by the heat
pump, the temperature indoors will continue to drop. The room
thermostat will then energize “W3” and 24Vac will be supplied
to HR2 on the heater assembly. When the “W3” demand is
satisfied, the room thermostat will remove the 24Vac from HR2.
The contacts on HR2 will open between 30 to 70 seconds and
heater elements #3 and #4 will be turned off. On most digital/

electronic thermostats, “W3” will remain energized until the
first stage heat demand “Y” is satisfied and then the “G”, “Y”,
“W2” and “W3” demands will be removed.

4.4 As the temperature indoors increase, it will reach a point

where the second stage heat demand, “W2”, is satisfied.
When this happens, the room thermostat will remove the
24Vac from the coil of HR1. The contacts on HR1 will open
between 30 to 70 seconds and turn off both heater element(s).
The heat pump remains on along with the blower motor
because the “Y” demand for first stage heat will still be
present.

4.5 When the first stage heat demand “Y” is satisfied, the room

thermostat will remove the 24Vac from “G” and “Y”. The heat
pump is turned off and the blower motor turns off after a 65
second off delay.

100