Goodman SSX, ASX, GSX, DSX, ANZ User Manual

...
Service Instructions
ANX, SSX, ASX, GSX, DSX
Condensing Units,
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.
RS6200006r72
August 2016
T able of Content s
IMPORT ANT INFORMA TION ...................................................2
PRODUCT IDENTIFICA TION - MODEL TREES ..................... 4
COILS.................................................................................. 6
BLOWERS ..........................................................................7
AIR HANDLERS .................................................................. 8
LIGHT COMMERCIAL .......................................................10
PRODUCT IDENTIFICATION - CHARTS .............................. 11
LIGHT COMMERCIAL .......................................................11
SPLIT SYSTEM HEA T PUMPS..........................................12
AIR HANDLERS ................................................................ 33
COILS................................................................................ 39
ACCESSORIES - LIGHT COMMERCIAL ..............................41
MODELS TO KITS MA TCHUP...........................................42
ASSOCIA TED KITS ...........................................................51
PRODUCT DESIGN .............................................................. 63
SYSTEM OPERA TION ...........................................................66
TROUBLESHOOTING CHART .............................................70
IMPORT ANT INFORMA TION
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 F OR 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 SOURCES 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 INFORMA TION LINE
GOODMAN® BRAND PRODUCTS
TOLL FREE
1-877-254-4729 (U.S. only)
email us at: customerservice@goodmanmfg.com
fax us at: (713) 856-1821
(Not a technical assistance line for dealers.)
email us at: customerservice@goodmanmfg.com
AMANA® BRAND PRODUCTS
TOLL FREE
1-877-254-4729 (U.S. only)
fax us at: (713) 856-1821
(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 HEAVIER THAN AIR YOUR LUNGS OR IN ANY ENCLOSED SPACE BREATHING OR DEATH
EVER PURGE REFRIGERANT INTO AN ENCLOSED ROOM OR SPACE
• N
ALL REFRIGERANTS MUST BE RECLAIMED
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 GOGGLES
. IF
MEDICAL HELP IMMEDIATELY
LWAYS FOLLOW
• A
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
AVOID POSSIBLE FROSTBITE OR
LAW
,
TO
AVOID POSSIBLE EXPLOSION
EVER APPLY FLAME OR STEAM TO A REFRIGERANT CYLINDER
• N
HEAT A CYLINDER FOR FASTER CHARGING, PARTIALLY IMMERSE IT IN WARM WATER
.
EVER FILL A CYLINDER MORE THAN
• N
EVER ADD ANYTHING OTHER THAN
• N
TO AN
410A
LISTED OR CERTIFIED FOR THE TYPE OF REFRIGERANT USED
• S
TORE CYLINDERS IN A COOL, DRY PLACE
PLATFORM OR A ROLLER
R-4 10A
:
CYLINDER
.
. THE
.
. N
EVER BURN REFRIGERANT, AS
.
TO
AVOID POSSIBLE EXPLOSION, USE ONLY RETURNABLE (NOT DISPOSABLE
SERVICE CYLINDERS WHEN REMOVING REFRIGERANT FROM A SYSTEM
• E
NSURE THE CYLINDER IS FREE OF DAMAGE WHICH COULD LEAD TO A
LEAK OR EXPLOSION
NSURE THE HYDROSTATIC TEST DATE DOES NOT EXCEED
• E
• 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
CYLINDER OR
.
. N
EVER USE A CYLINDER AS A
.
5
YEARS
LBS
.
.
400
.
R-
)
THE U
NITED STATES ENVIRONMENTAL PROTECTION AGENCY
HAS ISSUED VARIOUS REGULATIONS REGARDING THE INTRODUCTION AND
OF
DISPOSAL
FOLLOW
LEAD
MAY
LOCAL
S
YSTEM CONTAMINANTS, IMPROPER SERVICE PROCEDURE AND/OR PHYSICAL ABUSE AFFECTING HERMETIC COMPRESSOR ELECTRICAL TERMINALS MAY CAUSE DANGEROUS SYSTEM VENTING
REFRIGERANTS INTRODUCED INTO THIS UNIT
THESE REGULATIONS MAY HARM THE ENVIRONME NT 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 REGULATIONS
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
HANDLING
OF
REFRIGERANTS
.
.
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
ANZ 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: Condenser R-410A 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
18 = 1-1/2 Tons 24 = 2 Tons 30 =
2-1/2 Tons
Major/Minor Revisions
3-1/2 Tons
42 = 48 = 4 Tons
59 = 5 Tons
Engineering
Voltage
Nominal Capacit y
36 = 3 Tons 60 = 5 Tons
61 = 5 Tons
4
PRODUCT IDENTIFICATION
SSZ 14 1AA
1 2 3 4,5 9 10,11
Bra nd
G
Goodman® brand (Standard Feature Set)
S
Goodman® brand (High Fe ature Set)
A
Amana® brand Deluxe
D
Goodman® brand Deluxe
V
Value Line
Type
S 1 - 208/230V Single-Phase 60 Hz
Split System
Type 3 - 208/230V Three-Phas e 60 Hz X: Condens er R-410A 4 - 460V Three-Phase 60 Hz Z: Heat Pump R-410A 5 - 380/415V Three-Phas e 50 Hz
036
6,7,8
Engineering
Major/Minor Revisions
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 10 11,12
Bra nd Engineering*
C Indoor Coil
Unit Applicatio n 2 = R-22 A Upflow/Downflow Coil H Horizontal A-Coil
Horizontal Slab Coil
S
Coated Coils
T
Nominal Width for Gas Furnace
A = Fits 14" Furnace Cabi net B = Fi ts 1 7-1/2" Furnace Cabinet
C =
Fi ts 21" Furnace Cabinet
D =Fits 24-1/2" Furnace Cabinet N
Does Not Apply (Horizontal Slab Coils
Major/Minor Revisions
Ref rigerant Charge
4 = R-410A 6 = R-410A or R-22
Cabinet Finish
U Unpainted PPainted N Unpainted Case
Expansion Device
FFlowrator T 4 - 5 Tons
Expansion 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 To ns 2-1/2 To ns 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
Bra nd
MB - Modular Blower 1: 208-230V/60Hz/1 P
Type A: F irst Series R -
Speed
E -
Variable Speed
Airflow A: No Circuit Breaker
8: 12: 16: 20:
800 CFM 1200 CFM 1500 CFM 2000 CFM
B: Circ uit Breaker
1
Electrical
Design Serie s
Circuit Breaker
Factory Heat
00 No Heat
7
PRODUCT IDENTIFICATION
W
A
1 2 3 4 5,6,7,8 9 10 11,12
Bra nd Engineering*
A Airhandler
Unit Applicatio n Re frigera nt C harge
C Ceiling Mount PSC Motor 4 = R-410a DDownflow PSC Motor
Multi Position
E Electrical
Variable Speed
R Multi Position PSC Motor S Multi Po sition EEM Motor T Coated Coils W Wall 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 Hea t
U F 3642 1 6 AA
Major/Minor Revisions
1 208/240V, 1 Phase, 60 Hz
Nominal Capacity
@ 13 SEER Dedicated Application
3636 = 3 Ton
Multi-P osition & Downflow Application
Multi-Position & Do wnflow Application @10 SEER
1729 = 3 Ton
Ceing Mount & Wall Mount Applications
(Nominal C ooling Ca pacity/Electric Heat kW)
1805 = 1-1/2 Tons Cooling/5 kW Electric Hea t 2405 = 2 Ton s Co oling/5 kW Electric Heat 3608 = 3 Ton s Co oling/8 kW Electric Heat 3105 = 1-1/2 - 2-1/2 Tons Cooling/5 kW Electric Hea t 3210 = 2 - 2-1/2 Tons Cooling/5 kW Electric Heat 3705 = 3 Ton s Co oling/5 kW Electric Heat 3708 = 3 Ton s Co oling/8 kW Electric Heat 3710 = 3 Ton s Co oling/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
ARUF 18 B1 4AA
123 4 5,6 7 8 910,11
Bra nd Engineering*
A Single-Piece
Airhandler
Unit Applicatio n Re frigerant Charge
C Ceiling Mount PSC Motor 4 = R-410a R Multi Position PSC Motor S Multi Po sition EEM Motor Electrica l W Wall Mount PSC/EEM Motor 1 208/240V, 1 Phase, 60 Hz
Major/Minor Revisions
Cabinet Finish
UUnpainted B = PPainted C = 21" Wide NUncased D = 24 -1/2" Wide
Expansion Device
F Flowrator 18 = T Expansion Valve 24 = 2 Ton s 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 Capaci ty @ 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
GSX 11 090 1 AA
1 2 3 4,5 6,7,8 9 10,11
LIGHT COMMERCIAL
Bra nd
G - Goodman brand A - Amana brand
Type
S 1 - 208/230V Single-Phase 60 Hz
Split System
2 - 220/240V Single-Phase 50 Hz 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-Phas e 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
Major/Minor Revisions
Engineering
Voltage
Nominal Capacity
10
R 090 A
12 3,4,5 6,7
Bra nd
Single Piece
A
Air Handler
Unit App lication
R 090 7-1/2 Tons
Multi Position PSC Motor
For use with GSX/GSZ11 Light Commercial models only.
Major/Minor Revisions
Engineering
Nominal Capacity
120 10 Tons
PRODUCT IDENTIFICATION
GSX11 LIGHT COMMERCIAL
LIGHT COMMERCIAL
OODMAN® BRAND SPLIT
G
Model/Rev Description
GSX 110 90*AA GSX 111 20*AA
GSX 111 203 AB GSX 110 903 AB GSX 111 204 AB GSX 110 904 AB
Introduct ion of Goodman Light Comm erc i al 11 SEER, R-410A Condensers .
208-230V and 460V 3 Phas e condensing unit s wi t h new ball valve/bracket s, suction tube/ as sembly 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
Introduct ion of Goodman Light Comm erc i al 11 S EER, R-410A Heat P um ps.
208-230V and 460V 3 Phas e R410A heat pump uni t s wi t h new ball valve/bracket s, suction tube/ as sembly and panel w/ offset .
AR LIGHT COMMERCIAL
SINGLE PIECE
A
Model /Re v Description
AR0904A AR1204A
Introducat ion of new 7.5 & 10 Ton Air Handler Models, for use with GS X11 and GSZ11 Light Commercial Models.
MU LTI-POSITION PSC MOTOR
R-
11
PRODUCT IDENTIFICATION
Split System Heat Pumps
ASZ13
MANA® BRAND SPLIT
A
Model/Rev Description
AS Z130**1AA Initial release of Amana® B rand 13 SEER Heat Pump R410A .
AS Z130**1AB Introduces new revis ions with im proved ci rc uiting for effecti ve defrost.
AS Z130[18, 36-60] 1A B ASZ130[24-30]1AC
AS Z130[18, 36-60] 1A C ASZ130[24-30]1AD
AS Z130[18, 36-60] 1A D ASZ130[24-30]1AE
AS Z130241BA Release of 2 Ton models, converting from 3/8" to 5mm c ondens er c oil s
ASZ130181AF ASZ130[24-30]1AG
ASZ130481AF
Intro du ces models co ntaini n g crank cas e hea ter, CCH switch a nd u pg ra ded de frost control.
Relocat i on of low press ure s witch from liquid l i ne t o s uction li ne as a c om pres sor safeguard to prevent low pressure from entering.
Initial release of models us i ng s ingl e speed PSC mot ors ; removal of low ambient temperat ure switc h.
Current revers i ng valve c hange from Dunan to new SanHua reversing valve
Current Ranco reversing valve 0151M00020 replac ed by S anHua 0151R00070 revers i ng valve
R410A HEAT PUMP 13 SEER
Z-
ASZ130361AG ASZ130421AH
Change from c opper wound motor t o al umi num wound mot or.
12
PRODUCT IDENTIFICATION
Split System Heat Pumps
ASZ14
MANA® BRAND SPLIT
A
Model/Rev Description
ASZ140**1AA
AS Z140**1AB Sc rew loc at i ons m oved in the top panel, bas e pans , louvers , and control box c overs.
AS Z140**1AC Horiz ont al styl e louvers. AS Z140[18, 42-48]1A D
AS Z140[24-36, 60 ] 1 A E ASZ140361AF
ASZ140421AD ASZ140[48-60]1AE
AS Z140[18, 30, 36] 1A F ASZ140241AG ASZ14[42, 48, 60]1AE
AS Z140241AF Smal l er B 1227315 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 blanket s and Coresense c ont rol .
New steel m uffler, and s uc t i on t ubes w/ s hock loop.
TXV & compensator replaced with flowrator & acc um ul at or.
Sanhua (RANCO) reversing valves.
Introduct ion of heat pumps with acc um ulat ors, crank c ase heaters, and upgraded defrost control.
R410A HEAT PUMP 14 SEER
Z-
AS Z140361BA Chassis siz e reduction from large to m edi um . 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
AS Z140381AA 35" chassis wit h 6-c hannel flowrator and ZP29K5 com pres s or. AS Z140[18-30]1BA Updated ratings and agenc y i nformati on.
ASZ140[18-60]1KA
AS Z140[421,491, ] K B Motor c hange on 3 & 3. 5T 14 SEER & 2 & 2.5T 16 SEER. Increase blade gap. AS Z140181KC Change from c opper wound motor to al umi num wound motor. AS Z140[241, 301, 361, 481, 601] KB
AS Z140[421, 491] KC
Relocat ion of low pressure switch from li qui d line to suction li ne as a compres sor safeguard to prevent low pressure from entering.
2 speed PS C m ot ors replac ed wit h single speed PS C mot ors.
Revision made for desi gn i m provement.
Introduction of ready 15, 14 SEER heat pumps t o meet t he 2015 energy effici enc y requirement.
Refrigerant Charge Reduct ion
AS Z140181KD Refrigerant Charge Reduct ion
ASZ140[241,301,361,]KC
Equivalent mot or wi t h Aluminum Windings replacing Copper Windings.
13
PRODUCT IDENTIFICATION
Split System Heat Pumps
ASZ16
MANA® BRAND SPLITS
A
Model/Rev Description
AS Z160**1AA Initial release of Amana® B rand 16 SEER Heat Pump R410A .
ASZ160**1AB AS Z160**1AC Horiz ont al s t yle louvers.
AS Z160**1AD Muffler and st andardiz ed TXV, Compensator using the A S Z18 Seer weldment . ASZ160241AD
ASZ160[36-60]AE AS Z160[24, 36] 1A F
AS Z160[48, 60] 1A F AS Z160[24,36, 48, 60] 1KA Initi al release of Amana® B rand 16 SE E R Heat Pump models
AS Z160[18-48]1LA Initi al release of Am ana® B rand 16 SEER Heat Pum p model s with 9.6+ HS P F ASZ160601LA Initial release of Amana® Brand 5 Ton 16 SEER, 13 eer Heat Pump models. AS Z160[241,301] LB Motor change on 3 & 3. 5T 14 SE E R & 2 & 2.5T 16 SEER. Increas e bl ade gap. AS Z160181LB 16SEER 1.5T Heat Pumps, Remove Hard Start Kit
AS Z160181LC Change from copper wound motor t o al umi num wound mot or.
Introduces m odels with s c rew locations moved in the top panel, base pans, l ouvers, and control box covers.
Adds new s t eel m uffler, and suction t ubes w/ shock loop.
Sanh ua (RANCO) reversi ng valves.
R410A HEA T PUMP 16 SEER
Z-
ASZ18
MANA® BRAND SPLIT
A
Model/Rev Description
AS Z180**1AB Initial release of Amana® B rand 18 SEER Heat Pum p R410A. AS Z180[36, 48, 60] 1A C S anhua (RANCO) reversing valves.
R410A HEAT PUMP 18 SEER
Z-
14
PRODUCT IDENTIFICATION
Split System Heat Pumps
ANZ13
MANA® BRAND SPLIT SYSTEM
A
Model/Rev Description
ANZ130[18-60]1AA Initi al release of Amana® B rand Spl it System B ase Heat Pump, 13 S eer R-410A units. ANZ130[18/24/ 30] 1A B Reversing valve change from Dunan to new SanHua reversing valve ANZ130481AB Ranc o 0151M00020 reversing valve changed to new SanHua 0151R00070 reversing valve
N-
BASE
R410A HEAT PUM P 13 SEER
Z -
ANZ14
MANA® BRAND SPLIT SYSTEM
A
Model/Rev Description
ANZ140(18-60)1AA
ANZ140(24-30)1AB Energy guide updat e.
ANZ140181AB ANZ140421AB
ANZ140491AB
Introduction of ready 15, 14 SEER heat pumps to meet the 2015 energy effic i enc y requirement.
Minor revisions on OD units ZP14K6 compressors without hard start k it. 14S 1. 5T HPs ONLY .
Motor c hange on 3 & 3. 5T 14 SEER & 2 & 2.5T 16 SEER. Increase blade gap.
N-
BASE
R410A HEAT PUM P 14 SEER
Z -
ANZ140[ 181 , 301]A C ANZ140361AB
ANZ140[ 421 , 491]A C ANZ140[ 481 , 601]A B
ANZ140[181,301]AD ANZ140361AC
ANZ140241AD Equivalent motor with Aluminum Windings replacing Copper Windings .
Change from c opper wound motor t o al umi num wound mot or.
Refrigerant Charge Reduct i on
Refrigerant Charge Reduct i on
15
PRODUCT IDENTIFICATION
Split System Heat Pumps
DSZ16
ELUXE SPLIT
D
Model/Rev Description
DSZ160**1AA Initial releas e of Deluxe Goodm an 2-s t age 16 SEER heat pumps wi t h R-410A. DSZ160241AC
DSZ16036, 48, 60]1A B
Sanh ua (RANCO) revers in g valves .
R410A H EAT PUMP 16 SE ER
Z-
DSZ18
ELUXE SPLIT
D
Model/Rev Description
DSZ180**1AA Initial releas e of Deluxe Goodm an 2-s t age 18 SEER heat pumps with R-410A. DSZ180[36, 48, 60] 1AB Sanhua (RANCO) reversing val ves.
R410A HEA T PUMP 18 SEER
Z-
VSZ13
ALUE SPLIT
V
Model/Rev Description
VSZ13**1AA Initial release of Value Line 13 SEER heat pumps with R-410A.
R410A HEAT PUMP 13 SEER
Z-
VS Z130[24 & 30] 1A B Improved circ ui ting for effective defrost . VS Z130[24 & 36] 1B A Initi al release of models wit h 5mm Smart Coil™. VS Z130[18, 42, 48] 1AB
VSZ130241BB VSZ130301AC
VS Z130[24 & 36] 1B C VSZ130301AE VS Z130[18, 42 & 48] 1A D
VS Z130[18, 42-60] 1A C VSZ130301AD
VSZ130241C A VSZ130181AE
VSZ130421AF VSZ130361BD
VSZ130301AF VSZ130481AE
VS Z130421AF Compres sor change from ZP36K 5E P F V 130 t o ZP34K5EPFV130. VSZ130241C B VSZ130181AF
VSZ130241BD VSZ130301AG
Models containing c rank case heater, CCH switch and upgraded defrost control.
Release of si ngle phas e m odel s with new 6 pole motor.
Relocat i on of low press ure s wi t ch from li quid l i ne t o s uction li ne as a c ompressor safeguard to prevent low pressure from entering.
Release of 2 Ton models with a com pres sor change from ZP21K 5E P F V 130 t o ZP20K5EPFV130.
Changed from four-piece louver assembly t o a t wo piece louver as sembly . A dded a c orner post on 26" and 29" c hassis.
Singl e phas e m odels with new 6 pole motor. Changed from four-piece louver assembly t o a t wo piece louver as sembly . A dded a c orner post on 26" and 29" c hassis.
2 Ton models changi ng from the current four piec e louver assembl y, to a t wo piece louver plus a c orner post on Goodman and value series 26" and 29" chass is.
Revers i ng valve c hange from Dunan to new SanHua.
VS Z130481AF Ranc o 0151M00020 reversi ng valve replac ed by SanHua 0151R00070 revers i ng valve
16
PRODUCT IDENTIFICATION
Split System Heat Pumps
GSZ13
OODMAN SPLIT
G
Model/Rev Description
GSZ13**1AA Initial releas e wi t h Regal B el oit motor. GSZ13**1AB
GSZ13**3AA
GSZ13**4AA GSZ130[24 & 30] 1A C Releas e of mi nor revis ion with improved circ ui ting for effective defrost . GSZ130[24 & 36] 1B A Initial release of models with 5mm S m art Coil ™.
GSZ130241CA
GSZ130241CB
GSZ130[18, 42-60 ] 1 AC
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 rel eas e with Broad Ocean mot or.
Release of 2 Ton models with a c ompres sor change from ZP21K 5E P F V 130 t o ZP20K5EPFV130.
2 Ton model s chang i ng from the cu rrent four piec e l o uver assembly, to a two pi ece louver plus a corner post on Goodman and value s eries 26" and 29" chas sis.
Relea se of mode l s c ontain i ng crank case h eater, CCH swit ch and up gra d ed d efro st contro l .
Relocat i on of low press ure s wi t ch from li quid l i ne t o s uction li ne as a compress or s afeguard to prevent low pres s ure from entering.
Changing from t he current four piec e l ouver assembly, to a two piec e l ouver plus a corner post on Goodman and value series 26" and 29" chass is.
R410A HEAT PUMP 13 SEER
Z-
GSZ130361BC
GSZ130[42 & 48] 1A E
GSZ130361BD
GSZ130421AF
GSZ130[36 & 48] 3A C Releas e of 3 phase m odels with new 6 pole mot or.
GSZ14**1AA Initial release of 14 SEER models.
GSZ130481AG
GSZ130483AE GSZ130484AD
Release of models with new 6 pole m ot or/ fan com bination.
Models with new 6 pole motor/fan com bi nat ion. Changing from the current four piec e louver assembly, to a two piece l ouver plus a corner post on Goodman and value series 26" and 29" chassis.
Release of two piec e l ouver plus corner post on 26" and 29" c has sis with compres sor changing from ZP36K5EPFV130 t o ZP34K5E P F V 130.
Replaced Ranco revers ing valve 0151M00020 wit h SanHua 0151R00070 revers i ng valve .
17
PRODUCT IDENTIFICATION
Split System Heat Pumps
GSZ14
OODMAN SPLIT
G
Model/Rev Description
GSZ140(18-60) 1KA GSZ140491AA
GSZ140(18-30)1KB Energy guide update. P CB DM160 with new software. GSZ140301KC
GSZ140361KB
Introduction of ready 15 14 SEER heat pumps to meet the 2015 energy efficiency requirement.
Migrat ing from c opper t o alum inum m ot ors.
R410A HEA T PUMP 14 SEER
Z-
GSZ140 [421,491]KB Motor c ha n ge on 3 & 3.5 T 14 SEER & 2 & 2.5 T 16 SEER. Inc r ease blade gap. GSZ140 181KC
GSZ140 361KC GSZ140[241,301]KD
GSZ140[481,601]KB GSZ140[241, 301]KE
GSZ140[481, 601]KC GSZ1401 81KD
GSZ140[421, 491]KC
Refrigerant charge reduction.
New model revisions, GSZ140241KD, GSZ140301KD, GSZ140481KB and GSZ140601KB will have the BOMs cha ng ed and ha ve a lower refrigerant cha rg e.
New model revisions to deplete current overstock o f Ranco reversing valves
Change from c opper wound motor t o al umi num wound mot or. Refrigerant Charge Reduct i on
GSZ1402 41KF
Equivalent motor with Aluminum Windings replac i ng Copper W i ndings .
18
PRODUCT IDENTIFICATION
Split System Heat Pumps
GSZ16
OODMAN SPLIT
G
Model/Rev Description
GSZ160[18-48]1B A Initial release of Goodman 16 SEER, 13 EER Heat P umps 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 E qui valent motor wit h A l um inum Windings replacing Copper Windings .
Motor c hange on 3 & 3. 5T 14 SEER & 2 & 2.5T 16 SEER. Increase blade gap.
R410A HEA T PUMP 16 SEER
Z-
VSZ14
ALUE SPLIT
V
Model/Rev Description
VS Z14[018-060]1AA Introduct i on of ready 15, 14 SEER heat pum ps t o m eet the 2015 effic iency requirement.
VS Z140(18-30)1AB Energy gui de updat e. P CB DM160 wit h new s oftware.
R410A H E AT PUMP 14 SE ER
Z-
VS Z140421AB VS Z140491AB
VSZ140[181 ,301]AC VSZ140[361,481,601]AB
VSZ140[181 , 301]AD VSZ140361AC
VSZ140[241 , 421, 491]AC VSZ140241AD
Motor change on 3 & 3.5T 14 SEER & 2 & 2.5T 16 SEER. Increase blade gap.
Refrigerant charge reduction.
Change from c opper wound motor t o alum i num wound motor.
Refrigerant Charge Reduct i on
Equivalent motor with Aluminum Windings replac i ng Copper W indi ngs .
19
PRODUCT IDENTIFICATION
Split System Heat Pumps
SSZ14
PECIAL HIGH FEA TURE SPLIT
S
Model/Rev Description
SS Z140**1AA Initial rel eas e of Goodman 14 SEER Heat Pum p R410A. SS Z140**1AB Sc rew locations m oved in t he t op panel, base pans, louvers, and c ont rol box c overs.
SS Z140**1AC Broad Ocean Motors. SSZ140181AC
SSZ140241AF SSZ140301AD
SSZ140361AF SSZ140[42-60]1AD
SS Z140241AG S m al l er B 1227315 reversing valve. SS Z140[18, 30, 42-60] A E
SSZ140241AH SSZ140361AG
SS Z140[18, 30, 42-60] A F SSZ140241AJ SSZ140361AH
SSZ140[18,30]1AH SSZ140241AL SSZ140361BB
SS Z140140[18, 30] 1A J SS Z140[19, 25] 1A C SS Z140[31, 37] 1A C SSZ140241AM SSZ140361BCC SSZ140381AB SSZ140140381AB SSZ140[42-60]AH
SSZ140[18-60]1AD SSZ140361AF
SSZ140[42-60]1AD SS Z140381AA Initial release of 35" c hassis with 6-channel flowrator and ZP29K5 c ompres sor.
Discharge line mufflers added.
Added dis charge line mufflers. Replac ed TXV and compens at or wit h flowrator and accumulator.
Sanh ua (RANCO) reversi ng valves.
Introduct i on of heat pumps wi t h accumulat ors, crank case heaters , and upgraded defrost control.
Changed from four-piece louver assembly t o a t wo piece louver assembly. Added a c orner post on Goodman 26" and 29" chass is.
Revi sion made for design improvement.
Relocat i on of low press ure s wi t ch from li quid l i ne t o sucti on li ne as a compress or safeguard to prevent low pressure from entering.
Chassis size reduction from large to medium.
R410A HEAT PUMP 14 SEER
Z-
SS Z140[18-30]1BA Updated rat i ngs and agenc y information. SSZ140241BB
SSZ140251AE
20
Change from c opper wound motor t o al umi num wound mot or.
PRODUCT IDENTIFICATION
Split System Heat Pumps
SSZ16
PECIAL HIGH FEATURE SPLIT
S
Model/Rev Description
SS Z160**1AA Initial release of Goodman 16 SEER Heat Pump R410A. SS Z160**1AB Sc rew locations m oved in t he t op panel, bas e pans, louvers, and control box covers .
SSZ160**1AC
SSZ16[024-48]1AC SSZ160601AD
SSZ160361AF SSZ160[42-60]1AD
SSZ160241AF SS Z160[36, 48] 1A D SSZ160601AE
SSZ160241AF SSZ160[36-48]1AE SSZ160601BA
SSZ160241AH
Broad Oc ean Mot or. Updat ed muffler and st andardiz ed TXV. Compensator usi ng ASZ18 SEER weldment to the SSZ160601AC.
Discharge line mufflers added.
Added dis charge line mufflers. Replac ed TXV and compens at or wit h flowrator and accumulator.
Sanh ua (RANCO) reversi ng valves.
Introduct i on of heat pumps wi t h ac cumulators , crankcase heaters , and upgraded defrost control.
Changed from four-piece louver assembly t o a t wo piece louver as sembly . A dded a c orner post on Goodman 26" and 29" chass is.
R410A HEAT PUMP 16 SEER
Z-
SS Z160601BB Ultrat ech® com pres sor SS Z160241AK Change from c opper wound motor t o al um inum wound mot or.
21
PRODUCT IDENTIFICATION
Split System Condensers
GSX13
OODMAN BRAND SPLIT
G
Model/Rev Description
GSX130**1AA Init ial release of Goodman 13 SEER R-410A Condensers wit h Regal B el oit motors GSX 130 61[1/3/4]AA
GSX 130 363 AB GSX 130 484 AB GSX 130 603 AB GSX 130 604 AB
GSX130**1AB Broad Ocean mot ors . GSX130483AB 3 Phase model with new 6 pole mot or.
GSX 130 483 AC GSX 130 181 EA
GSX 130 181 EB GSX 130 **1BA
GSX 130 **3AA GSX 130 **4AA
GSX130301BB Replac ed fan motor t o -294 and fan blade to -18 on GSX130301BA model s.
Introduct i on of Goodman 13 SE E R R-410A Condensers that supplem ent our current 5 ton models.
Changed from t he c urrent four piec e louver assembl y, to a t wo piece louver plus a corner post on Goodman and value series 26" and 29" chas sis.
3 phase model changing from the current four piece l ouver assembl y, to a t wo piece louver plus a c orner post on Goodman and value series 26" and 29" chass is.
Introduct i on of 1.5 t on c ondens er wit h Rec hi Compres sor. Introduct i on of Goodman 13 SE E R R-410A Condensers using Smart Coil ® coils . Units will
have new louvers bec ause units are s m al ler. Pist on size c hange. Ot her components unchanged.
R410A CONDENSERS 13 SEER
X-
GSX130[42, 48]1BC GSX 130 301 BC GSX 130 601 BB
GSX130[42, 48] 1BB New 6 pole motor/fan c ombi nat i on. GSX130181CA Rot ary compress or.
GSX 130 421 C A GSX 130 481 C A
GSX130361CA Replaced current c om pres s or with compres s or ZP29K5E PFV130. GSX130[18-36]1DA Condenser c onversion to 23" c hassis for the 1. 5 - 3 t on m odels.
GSX 130 181 ED
GSX 130 31D B GSX130361EA Introduction of Goodman 3 ton conversi on from 29" chass is to 26". GSX 130 361 EB GSX130371AA Improved decibel rat i ngs for Canadian mark et .
GSX130181EF Change from m ot or 0131M00276 to 0131M 00593 on unit s GSX130181 & VS X130181
Changed from t he c urrent four piec e louver assembl y, to a t wo piece louver plus a corner post on Goodman and value series 26" and 29" chas sis.
Introduct i on of Goodman 3.5 and 4 t on 13 SEER condens i ng unit s with reci proc at i ng compressor.
Changed from a 4 leg Rechi Compres sor 50N382XV-ZAKM to 3 Leg Rec hi Com pres s or 50N382XV -5AKM. Changed Suc tion line Assy from 0210R01608 to 0210R01406. This minor
Improved coil ci rc ui t assembl y for greater capacity /effici ency and a new disc harge t ubi ng assembly.
Changed from t he c urrent four piec e louver assembl y, to a t wo piece louver plus a corner post on Goodman and value series 26" and 29" chas sis.
GSX130363AD Change from copper wound mot or t o alum i num wound mot or.
22
PRODUCT IDENTIFICATION
Split System Condensers
GSX14
OODMA N BRA ND SPLIT
G
Model/Rev Description
GSX14**1AA Introduction of Goodman 14 SEER R-410A m odels. GSX 140 [18-19]1KA
GSX 140 [24-25]1KA GSX 140 [30-31]1KA GSX 140 [36-37]1KA GSX140[42, 48, 60] 1KA
GSX140241KB Replac ed 1/ 12hp fan motor with 1/8hp fan motor. GSX140311AA Introduction of 12.2 EER ai r c onditioning units. GSX140[30-36,42]1KB Migrat i ng from copper t o alum i num motors.
GSX 140 251 LA
GSX140241LB
GSX140191KB
GSX140361KC GSX140371KB GSX140421KC GSX140 [431,481,601]KB
Goodman condens er 5mm arc hi t ecture with updat ed s croll com pres sors.
Changed compres s or from K5 to K6, Changed coi l slab from 25" tal l t o 30" t al l , Changed louvers from 24" tall to 29" tall
Create minor revis i ons of the new Rechi 2. 0T units to consume the ex cess inventory of 19P fan motor
Remove HS Kit from Control Panels of c ondens er unit s with updated ZP14K6E scroll compressors.
Refrigerant charge reduction.
plit X 14 Seer Condensing unit s. Introduci ng t he Goodm an 14 SEER standard
S
R410A CONDENSERS 14 SEER
X-
GSX140311KB GSX140371KC GSX140431KC
Change from c opper wound motor t o al um inum wound mot or.
GSX16
GOODMAN BRAND SPL IT X-R41 0A CONDENSERS 15 AND 16 SEER
Model/Rev Description
GSX160**1FA Initi al release of the Goodman 16 S E E R R410A Condensers. GSX160611FA New high cap ac i t y 5 ton model t hat will s uppl em ent the c urrent GSX160601 m odel s . GSX160[18-61]1F B M i nor revision for GSX16s to i nclude ball valves 0151R00045 and 0151R00046.
GSX160601GA 7mm coils . GSX160(48/60/61)1F B Ball valve cha nge from 015 1R00046 to 0151R00081
GSX160(18/24/30/36)1FC Migrat i ng from c opper t o al uminum mot ors. GSX160(18/24/30/36)1FC
GSX160(42/48/60/61)1FC
GSX160311AA GSX160371AA
Bal l Valve Re-work 0151R00045 & 0151R00046
Initi al release c reates and l aunches 2 new SKUs i n the 16 SE ER singl e-stage A C product line.
GSX160[ 241, 301, 601]FE GSX160[311,371]AB
Refrigerant charge reduction. Equivalent motor with Aluminum Windings repla c ing Copper Windings.
23
PRODUCT IDENTIFICATION
Revisi
Split System Condensers
SSX14
PECI AL HIGH FEATURE SPLIT
S
Model/Rev Description
SS X140**1AA Initi al releas e of Goodman 14 SEER AC 410A. SSX140**1AB SS X14018, 241AC Revised condenser c oi ls by removing [1] haripin. SS X140301AC M odel contains t he Broad Oc ean motor 0131M00060 SS X14036-601AC Models contain the B road Oc ean m ot or 0131M00061 SS X14030,361A D Revi s ed c ondens er coils by removing [1] haripi n. SS X140421AD Introduc es 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 s crew locations m oved in the top panel, base pans , louvers, and control
box covers.
Convert s 1.5 - 3.5 t on c ondenser coil t ubes from 3/ 8" t ube diameter to 5mm t ube diameter .
Changing from t he current four piec e l ouver assembly, to a two piec e l ouver plus a corner post on Goodman and value series 26" and 29" chas sis.
Revi sion made for design improvement.
Revi sion for SSZ140421B* in 29 base pan and it will the reduce the unit charge from 180 oz. to 170 oz. and replac e t he 1/ 4 hp out door unit m ot or wit h 1/6 hp motor.
R410A CONDENSERS 14 SEER
X-
SS X14030-421AE Revised c ondens er coils by removi ng [ 1] haripin. SSX140[18-48]1BA
SSX14042-481CA SSX140[18-36]1BB
SSX140421CB SSX140601AF
Introduct i on of Goodman 14 SE E R R-410A Condensers wi t h S m art Coil ® Coil s.
Relocat i on of low press ure s wi t ch from li quid l i ne t o s uction li ne as a compress or safeguard to prevent low pressure from entering.
24
PRODUCT IDENTIFICATION
Split System Condensers
SSX16
PECIA L HIGH FEATURE SPLIT
S
Model/Rev Description
SS X160**1AA Introduces Goodman 16 SEER AC 410A SSX160**1AB
SSX160**1AB SSX160591AA
SS X160[24, 36, 48] 1BA SS X160[30 & 42] 1A A
SS X160[24, 36] 1B C SS X160[30, 42] 1A B
SS X160601BA ZPS49K compress or. SSX160[24,36,60]1BB
New revisions have screw locati ons m oved in the top panel, bas e pans , louvers, and cont rol box covers.
New revisions have screw locati ons m oved in the top panel, bas e pans , louvers, and cont rol box covers.
SmartCoil® coils. Changing from t he current four piec e louver assembl y, to a t wo piec e l ouver plus a corner
post on Goodman and value series 26" and 29" chas sis.
Relocat i on of low press ure s witch from liquid l ine t o suct i on line as a compres s or safeguard to prevent low pressure from entering.
R410A CONDEN SER 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 Conversi on of 2 & 3 t on m odels to SmartCoil ® Coils.
DSX160241BC Introduces Ultratec h® 2.0 com pres sor changes.
DSX18
ELU XE SPLIT
D
Model/Rev Description
DSXC18**1AA Inti al release of 2-stage condensing uni t s wi t h R-410A communic at i ng m odels. DSXC18036AB
DSXC18048AB DSXC18060AB
DSXC18036AC
DSXC180[48-60]AC Intial releas e of Ultrat ech 2.0 to communic at i ng c ondens i ng units
Updated wiring diagram wit h not es for com m unicating c ondens i ng units.
Replaced ex i s ting compres sor ZPS 20K4EPFV230 t o ZPS 20K 5E PFV130 & ex i sting com pres s or ZPS30K 4E PFV230 t o ZPS30K 5E P F V 130 for comm uni cating c ondens ing units.
R410A HEAT PUMP 18 SEER
X-
25
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. VS X130611AA S upplem ent s the 5 ton model GS X130611 to enhanc e performance. VS X130301AB Replac ed fan mot or to -294 and fan blade to -18 on the V S X130301AA .
VSX130301AC VSX130[42-48]1AC
VS X130[42-48]1AB Replaced with 6-pole mot or and Copeland compressor. VS X130181BA Rotary compress or.
VSX130181EA VSX130181EB
VSX130181ED
VSX130241BA
VS X130361BA Replac ed c urrent c om pres sor with com pres sor ZP29K5EPFV130.
VSX130361EB
Changed from c urrent four piece l ouver assembly t o a t wo pi ec e louver assem bly plus a corner post on Goodm an and value s eries 26" and 29" c has sis.
Introduct ion of 1.5 t on condenser with Rec hi Compres sor.
Changed 4-leg Rec hi Com pres sor 50N382XV-ZAKM t o 3-Leg Rechi Compres sor 50N382XV -5AKM. Changed Suc t i on l i ne Assy from 0210R01608 to 0210R01406.
2.0 t on c ondens i ng units wit h alum i num coils, aluminum m anifolds w/exi s ting sc roll compressor.
Changed from c urrent four piece l ouver assembly , to a two piece louver plus a corner pos t on Goodman and value series 26" and 29" chass is.
R410A CONDENSER 13 SEER
X-
VS X130601BA Condensi ng unit s with Sm art Coil ® coils .
VSX130601BB VSX130421BA
VSX130481BA VS X130[18-36]1DA 3.5 and 4 t on 13 S E E R Condensers conversion to 23" chass is for the 1. 5 - 3 t on m odels.
VSX130301DB
VSX130301EA
VSX130241EA
VS X130371AA 2. 5 13 SEER Condensers wit h i m proved deci bel ratings for Canadian market. VS X130241EB Compres s or wires yellow, red and blac k changing from 40" t o 45" . VS X130181EF Change from m ot or 0131M00276 t o 0131M00593 on unit s G S X130181 & V S X130181 VSX130241EC
VSX130301AE VSX130[361,6 01]ED VSX130[421,4 81]AE
Changing from t he current four piec e l ouver assembly, to a two piec e l ouver plus a corner post on Goodman and value series 26" and 29" chass is.
3.5 and 4 ton 13 S E ER condensing units wit h rec iprocating com pressor.
2.5 13 SEER Condensers wit h i m proved coi l c i rc ui t assembl y for greater capac i t y/efficiency and the c reat i on of a new disc harge t ubi ng as s em bl y.
3 Ton 13 SEER Condensers release of 3 ton models converting from 29" chassis to 26" chassis.
2.0 Ton 13 SEE R Condensers wit h Rec hi Compres sor, converting 23" c hassis to 26" chassis
Refrigerant charge reduction.
26
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 VS X140[42, 48, 60]1AA
VS X140241AB Replac ed 1/ 12hp fan mot or with 1/ 8hp fan mot or.
VSX140251BA
VSX140241BB
VS X140191KB
Introducing the 14 SEER standard condenser 5mm architecture with updated s croll compressors.
Changed compressor from K 5 t o K 6, Changed coi l s l ab from 25" tall to 30" t al l , Changed louvers from 24" t al l t o 29" t al l
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 upda ted
R410A CONDENSER 13 SEER
X-
ZP14K6 E sc roll compressors.
VS X140[301, 311] A B VSX140[361-431]AC
VSX140301BA
Change from c opper wound motor t o al umi num wound mot or.
Copeland to Rechi 2.5 T update s uc t tube, fix l iq l i ne as sy, fix wiring diagram, change charge qty.
27
PRODUCT IDENTIFICATION
Split System Condensers
ANX13
MANA® BRAND SPLIT SY STEM
A
Model/Rev Description
ANX130[18-24]1AA
ANX130[30-61]1AA Init ial release. ANX130241BA Convert ANX13/14 1. 5 and 2 ton m odels to Rechi compress ors . ANX130[301-601]A D Refrigerant Charge Reduc ti on
Launch of the Tier 1.5T & 2.0T models. Launc hed with 26" chas i s to accommodate horizont al sty l e louvers.
N-
BASE
R410A CONDENSERS 13 SEER
X-
ANX14
MANA® BRAND SPLIT SYSTEM
A
Model/Rev Description
ANX140[18-60]1A A
ANX140241AB Replac es 1/12hp fan motor with 1/8hp fan motor. ANX140431AA Introduction of ready 15, 12.2 EE R air c onditioning units.
ANX140251BA
ANX140191AB ANX140181BA
ANX140241BA
Introducing t he A m ana updated scroll com pres sors.
Changed compressor from K5 to K6, Changed coi l slab from 25" tall t o 30" tall, Changed louvers from 24" t al l t o 29" t al l
Remove HS Kit from Control Panels of c ondens er unit s wi t h updat ed ZP14K6E scroll compressors.
Convert A NX13/14 1. 5 and 2 t on model s to Rechi c ompres sors.
BASE
N-
®
Brand 14 SEER standard condenser 5mm architecture with
R410A CONDENSERS 14 SEER
X-
ANX140[301-371]A B ANX140[421,431] A B
ANX140481AB ANX140601AB
ANX140[361,371] A C ANX140[421,431] A C
Change from c opper wound motor t o alum i num wound mot or.
Refrigerant Charge Reduct i on
Refrigerant Charge Reduct i on
28
PRODUCT IDENTIFICATION
Split System Condensers
ASX13
MANA® BRAND SPLIT
A
Model/Rev Description
ASX130**1AA
ASX130611AA
ASX130611AA
ASX130**1BA
ASX130**1CB
AS X130181DA Init i al release of models wit h new 266 fan motor; Low pressure switch removed.
ASX130181DB ASX130[24-48]1CD ASX130601CC
ASX130[24-48]1CC ASX130601CB
AS X130361DA Release of 3 ton m odels with a 26" c hassis.
Initial release new models of Am ana Initial release of new models of Amana® Brand Deluxe 13 SEER AC R410A conditioners;
replaced A S X130601* models. Introduct i on of Amana
5 ton models. Initial release of models us i ng Sm art Coil
si z e changed; other com ponent s unchanged. Relocat i on of low press ure s witch from liquid l i ne t o s uction li ne. Compres sor safeguard to
prevent low pressure from entering.
Low pressure s witch 013M00082 added; updated wi ring diagram.
Initial release of models wit h single speed P S C mot ors; Does not c ont ai n a l ow pressure swit ch, low ambi ent t em perat ure s wit ch and relay.
®
brand 13 SEER R-410A Condensers that supplement our current
CONDENSERS 13 SEER
X-
®
Brand Deluxe 13 SEER AC R410A conditioners.
®
coi ls. Sm al l er unit s with new louvers. P iston
AS X130361DE Refrigerant Charge Reducti on
29
PRODUCT IDENTIFICATION
MANA® BRAND SPLIT
A
Model/Rev Description
ASX14
CONDENSERS 14 SEER
X-
Split System Condensers
ASX140**1AA
AS X140**1AB Sc rew l oc ations m oved in the t op panel, base pans , l ouvers, and control box covers.
AS X140**1AC Horizontal sty le louvers.
AS X14018-361AD Revis ed c ondenser coil s by removing (1) hairpin. R410A quanti t y reduced by 6 ounc es.
AS X140421AD Initial releas e of m odel ASX140421A i n 2 9" base pan
ASX140421BA
ASX14018-361BA ASX140[42-48]1CA
ASX140[18-30]1BA ASX140[42-48]1CA
ASX140[18-36]1CB ASX140421DB ASX140601BB
Initi al rel ease of models of Amana
29" pl at form. Uni t charge reduced from 180 oz. to 170 oz . 1/ 4 hp outdoor unit motor replac ed wit h 1/ 6 hp m ot or.
1.5 - 3. 5 t on condenser c oi l tubes c onverted from 3/8" t ube di am et er to 5mm tube diameter.
Initi al rel ease of models using SmartCoil ® coil s.
Low press ure switc h rel ocated from liq uid l i ne t o sucti on l i ne as a compressor safeguard to prevent low pres sure from enteri ng.
®
Brand Deluxe 14 SE ER AC R410A conditi oners.
ASX140[24-36]1CC ASX140421DC ASX140481CB ASX140601BC
ASX140181DB ASX140[24-36]1CD ASX140421DD ASX140481CC ASX140601BD
ASX140181DD ASX140[24-48]1CE ASX140421DE ASX140601BE
ASX140181DA Init i al release of models wit h new 2 66 fan m otor; Low pres sure swit ch removed. AS X140[18-19, 24-25] 1K A
AS X140[30-31, 36-37] 1K A AS X140[42, 48, 60]1K A
AS X140241KB 1/8 hp fan mot or replaced 1/12 hp fan mot or.
Initi al rel ease of models with single s peed PSC mot ors; Does not cont ain a low pressure swi t ch, low ambi ent temperat ure switc h and rel ay .
Low pressure switch added.
Desi gn im provement.
Initi al rel ease of 5mm architecture with updated s croll compressors.
30
PRODUCT IDENTIFICATION
ASX14
MANA® BRAND SPLIT
A
Model/Rev Description
AS X140[18-19, 24-25] 1K A AS X140[30-31, 36-37] 1K A AS X140[42, 48, 60] 1K A
AS X140241KB 1/8 hp fan motor replac ed 1/ 12 hp fan motor. AS X140241LA A S X140251LA
AS X140191KB
Initial release of 5mm arc hitecture wit h updat ed s croll com pres s ors .
Changed compres s or from K5 t o K 6, Changed coi l slab from 25" tall t o 30" t al l , Changed louvers from 24" t al l t o 29" t al l
Remove HS Kit from Control P anel s of c ondens er unit s wi t h updat ed ZP14K6E scroll compressors.
CONDENSERS 14 SEER
X-
Split System Condensers
AS X140241LA
AS X 140[301-431]K B Change from copper wound motor to alum inum wound mot or. AS X 140[481, 601] K B Refrigerant Charge Reduct i on AS X 140[361, 371, 421, 431] K C
AS X160[241, 301] FC
Change compres s or from K6 t o K 5 on A S X140241 and DX14SA0241
Refrigerant Charge Reduct i on
31
PRODUCT IDENTIFICATION
Split System Condensers
ASX16
MANA® BRAND SPLIT
A
Model/Rev Description
AS X160**1AB S c rew locations m oved in t he t op panel, base pans, louvers, and c ont rol box covers. AS X160**1AC Horizontal styl e louvers. AS X160**1FA Si ngle speed outdoor fan. AS X160611FA High c apac ity 5 ton m odels that supplement t he current ASX160601 models. AS X160611GA 7mm coils. AS X160[24-60] 1BA Wiring diagram updated with notes. ASX160[24/36]1CA AS X160(48/60/ 61)1FB Ball valve change from 0151R00046 to 0151R00081
ASX160311AA ASX160371AA
AS X160[181-421]F B Change from c opper wound mot or t o alum i num wound mot or. AS X160601FC Refrigerant charge reduction
AS X160[311, 371] A B Equivalent m ot or wit h A l um inum Windings replacing Copper Windings.
Initial release of Conversion of 2 & 3 t on model s to SmartCoil
Initial release creates and launches 2 new S K Us i n t he 16 S E ER single-s t age A C product line.
CONDENSERS 16 SEER
X-
®
coils.
Model/Rev Description
ASX180**1AB
32
ASX18
MANA® BRAND SPLIT
A
Initial release new models of Amana
CONDENSERS 18 SEER
X-
®
Brand Deluxe 18 SEER AC R410A conditioners.
PRODUCT IDENTIFICATION
ACNF
SINGLE PIECE AIR HA NDLER 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* ** * 1A B Drain pan m a terial c ha nge.
ACNF** * * 1B A Current wavey fin de sign wit h repl a ced new louvered fin desi gn
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
Release of all models of 13 SEER Dayton uncased air handlers suitable for use with R-22 & R-410A.
Convert ed copper coi l s, man i fold s, hairpi ns, flowrators, 90° flowrator st ub to alumi num . Convers i on o f c oppe r 3/8" ret urn b ends to al um i nu m 5/16" ret urn bend s.
UL1995 heat er change.
Change in the air handl er design. The motor changed from an exis ting PS C t o a const ant torqu e motor.
ADPF
SINGLE PIECE DOWNFLOW AIR HANDLER PSC MOTOR PAINTED FLOWATER
A-
Model/Rev Description
ADPF ** **16A A Introducti on of new 13 SEE R A i r Handler Models suitable for use wit h R-22 and R-410A.
ADPF364 216 AB
ADPF486 016 AB
ADPF304 216 AC
ADPF****1B A Replacement of all ARPF c oil s using wavy fin with louver enhanced fin. ADPF182 416 CA
ADPF486 016 CA
Replacem ent of the c urrent spot welded blower housing with the same cinched or c rim ped desi gn us ed on t he 80% furnace li ne.
Replacem ent of the c urrent spot welded blower housing with the same cinched or c rim ped desi gn us ed on t he 80% furnace li ne.
Replacem ent of the c urrent spot welded blower housing with the same cinched or c rim ped desi gn us ed on t he 80% furnace li ne.
Replacem ent of exi s ting air handler copper coi l s and ot her as sociat ed parts with aluminum components.
33
PRODUCT IDENTIFICATION
Air Handlers
AEPF
SINGLE PIECE E-MU LTI-POSITION VARIABLE SPEED PAINTED FLOWATER
A-
Model/Rev Description
AEPF****16AA Introducation of new 13 SEER Air Handler Models s ui t abl e for use wit h R-22 and R-410A.
AEPF****16BA Introduction of new models adding lower kW hit kit s on the S& R plat e.
AEPF****16BB
AEPF****16CA Replacement of all A RP F c oi l s using wavy fin wit h l ouver enhanced fin.
AEPF****1BA Introduction of R-22 Only A i r Handlers.
AEPF313716AA Introduction of 3-Ton Air Handler units with 3-row c oil.
Replacem ent of the c urrent spot welded blower housing with the same cinched or c rim ped desi gn us ed on t he 80% furnace li ne.
34
PRODUCT IDENTIFICATION
Air Handlers
ARUF
SINGLE PIECE AIR HAN DL E R R-MULTI-POSI TION PSC MOTOR UNPA INTED FLOWRATOR
A-
Model/Rev Description
ARUF172916AA A24-00-2RCA
ARUF****16A A Introducti on of new 13 SEE R A i r Handler Models suitable for use with R-22 and R-410A ARUF364216AB
ARUF486016AB ARUF364216AC
ARUF****16B A Replaced wavy fin wit h louver enhanced fin. ARUF****1BA Introducat i on of R-22 Only A ir Handlers.
ARUF****16CA ARUF***14AA
ARUF***14AB ARUF18B14AB
ARUF24B14BA ARUF36C14BA ARUF42C14AB
Introduct i on of new Air Handler Models with all aluminum evaporator c oi l s . Convers i on inc ludes coils , m ani fold, hai rpin, flowrators, 3/8" ret urn bend t o 5/ 16" alum i num return bends.
Replaced c urrent spot welded blower housing with cinc hed/ crimped design used on the 80% furnace li ne.
Replaced ex i sting air handler c opper coi l s and other ass oc i at ed part s wi t h al umi num compo nen ts.
Initial release of the redesigned air handlers manufactured at the Houston furnace facility.
R-410A only. 2 & 3 ton c oi l replacement. 2 t on replaced w/3 row/16" t al l; 3 ton replaced with 18" t al l c oi l . 3. 5 ton model blower motor c hanges from 10X8 to 10X10.
ARUF24B14B B Changed 16 Tall, 3 Row, 6 Cir Coil A ssembl y to 14 Tall, 3 Row , 6 Cir Coil Assem bl y . ARUF24B14CA Initial release of model t o m eet A HRI requirements
ARUF30C14BA ARUF30B, 17. 5 inch wide models convert ed t o an A RUF30C, 21 i nc h wide m odel . ARUF36C14BB
ARUF42C14AC ARUF36C14BC
ARUF30B14AC ARUF30C14BB ARUF42C14AD ARUF(48/60)D14AC
ARUF(37/43/49) C 14AA ARUF(37/43/49)D14AA Initial Release. D53 Cabinet (for 7mm 14 SEER Heat Pumps).
ARUF(47/61)D14AA
The aluminum models changes the RB s, COs, and coil s l abs to 9mm braz e j oints.
Serial pl at e changes
Initial rel eas e of new ready 2015 Air Handler Models that m eet the 2015 energy effic iency levels (for 7mm 14 SEER Heat Pumps).
Initial rel eas e of new ready 2015 Air Handler Models that m eet the 2015 energy effic iency levels (for 7mm 14 SEER Heat Pumps).
ARPF
SINGLE PIECE AIR HAN DLER R-MU LTI-POSITION PSC MOT OR PAINTED FLOWRATER
A-
Model/Rev Description
ARPF364 216 AB ARPF486 016 AB
Replacem ent of the c urrent spot welded blower housing wit h t he same ci nc hed or c rim ped desi gn us ed on t he 80% furnace li ne.
ARPF ** **16B A Wavy fin replac ed wit h l ouver enhanced fin. ARPF****1B A Introduction of R-22 Only A i r Handlers. ARPF ** **16CA Replac ed air handler c opper c oi ls and other ass ociated parts wi t h alum i num components .
35
PRODUCT IDENTIFICATION
SINGLE PIECE AIR HANDLER R-MULTI-POSI TION PSC MOTOR PAINTED FLOWRATER TXV
A-
Model/Rev Description
ARP T***14AA Initial release of the new air handlers . ARP T***14AB Initial release of the ai r handlers manufac t ured at the Houston furnace facil ity.
Air Handlers
A RPT - R4 10A ONL Y
ARPT[18-36]B14AC ARPT[36-60]D14AC
Serial pl at e c hanges .
ASPF
SI NGLE PIECE AIR HANDLER S-MU LTI-POSITION EEM MOTOR PAINTED FLOWRA TOR
A-
Model/Rev Description
ASPF****16AA Introduction of new ASPF Air Handlers.
Initial release of modified ASP F control scheme, t o ens ure blower operation during and
ASPF****16BA
ASPF****16C A
ASPF****16D A
ASPF****16EA
after call for heat on unit s wi t h heat kits and replac i ng wavy fin wit h l ouver enhanced fin on coil. Replaced ex i sting air handler c opper coi ls and other ass ociate departs with alumi num compo nen ts.
Initial release of models wit h E m ers on S elecTech m ot or. Replaced Regal-Bel oi t X-13 motor.
Replaced of existing air handler c opper c oi ls and other ass ociated parts with aluminum com ponents and replaced Regal-Beloi t X-13 mot or wit h E m ers on S elecTech m ot or.
ASPT
SINGLE PIECE AIR HANDLER S-MULTI-POSITION EEM MOTOR PAINTED TXV
A-
Mode l/Re v Description
ASPT(24/36/48/60)*14 Introduc tion 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 B road Oc ean M otor. The supplier can program t he mot or inst ead of furnace plant, t hus elim inating any programm ing ins tall ing is s ues . The programm ed label will provide by supplier.
X13 Motor IP changed to IGBT (Broad Ocean).
Initial release of models with 2+ 2 c oil s lab as s y . These models are required to meet higher tonnage rating in Cabinet.
Nidec P re-programm ed M otor. Nidec mot or can be programm ed by the s upplier ins tead of programming at the furnace plant, t hus eli minat ing any programming ins t alling is s ues .
Initial release of models with a 2 s l ab, low airflow resist ant c oil with a fixed s peed E CM . 53" cabinet size. ASPT42C and ASPT48C 2+2 models discontinued.
36
PRODUCT IDENTIFICATION
Air Handlers
ASUF
SINGLE PIECE AIR HA NDLER S-ENERGY EFFICIENT MOTOR UNPAINTED FLOWRATOR
A-
Model/Rev Description
ASU F29B14AA ASU F39C14 AA
ASU F49C14 AA ASU F59D14 AA
ASU F49C14 AB ASU F59D14 AB
AS UF59D14AC Four row, piston, 9 m m ret urn bend coi l .
AS UF59D14AD Nidec P re-programmed M ot or. Nidec m otor can be programmed by t he supplier. ASU F29B14AB
ASU F39C14 AB ASU F49C14 AC ASU F29B14AC ASU F39C14 AC ASU F49C14 AD
Initial release of models in t he m i d-range effic i enc y air handler. Incorporates smart frame chassis with EEM (X-13) st y l e motors and piston type flowrators .
Initial release of mid-range efficiency air handler with X-13 mot or & fix ed orific e flowrator.
9 mm ret urn bend coi l.
Programmed B road Oc ean M ot or. The supplier can program t he m ot or.
Changed from X13 Motor IP t o IGBT (Broad Oc ean).
MBR
ODULAR BLOWER AIR HANDL E R R-MUL TI-POSI TION PSC MOTOR
M
Model/Rev Description
MBR****A A -1AA Initial releas e of a module blower with PS C blower motor. MBR****A A -1AB A quality im provement to us e 0.75" Quiet Fl ex Insulat ion. MBR****A A -1AC Release of MBR/ MB V C M odels(M inor Revi sions) for 11th St P l ant. Dayton to Houston
MBE
ODULAR BLOWER AIR HANDL E R E-MU LTI-POSITION VA RIABLE-SPEED
M
Model/Rev Description
MB E ****A A -1A A Introduc t i on of a module blower with variable s peed bl ower motor. MBE **** A A -1BA Introducti on of new models adding lower kW hit k i t s on t he S& R plat e.
37
PRODUCT IDENTIFICATION
-
AWUF
SINGLE PIECE AIR HAN DL E R WALL MOU NT UNPAINTED FLOWRA TOR
A-
Model/Rev Description
AWUF****16 AA AWUF370**16AA
AWUF3005-101AA Initi al release of modelw with Burr Oak Louvered Fin c oi l.
Introduct i on of a 13 SEER Day t on wall m ount air handlers sui t abl e for use wit h R-22 and R 410A. Coil adapt ers have been added to coil ci rc ui t s.
Air Handlers
AWUF****1BA AWUF****16 BA
AWUF(18/24/30)0316BA Introduct i on of 3 kW heater in the A WUF 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*
Changed from c opper tube hai rpin t o al umi num t ube hairpin. Alumi num m ani folds and flowrators are purchas ed part s.
Introduct i on of higher 14 SEER AWUF series air-handlers .
Replaced 16x 20x 1 wi t h 18x 20x1 filter.
Drain pan water sens or s wit ch added.
Revi sed for the UL1995 heater c hanges .
Introduction of 14 SEER Dayton small chassis wall mount air handlers with fixed speed X13 Stylemotor t o match the 1. 5 and 2. 0 t on AC, AC+E ER, and HP models with factory ins t all ed heat from 3 k W to 10 kW.
38
PRODUCT IDENTIFICATION
CAUF
INDOOR COIL A-UPFLOW/DOWNFLOW UNCASED FLOWRATOR
C-
Model/Rev Description
CAUF*****6AA Initial release of CAUF Dayton Upflow/Downflow coils. CAUF*****6BA Burr Oak Louvered Fin released in plac e of the W avy F in.
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 Manufact uring Loc at i on Change from Dayton t o Hous ton. Designat ed by "R".
CAUF36***CA Redesi gn from 2 row to 3 row for performance improvement .
Manufact uring Loc at i on Change from Dayton t o Hous ton. Designat ed by "R".
exi s ting copper coi l s and ot her as sociat ed parts with alum inum c om ponent s.
CAPF
INDOOR COIL A-UPFLOW/DOWNFLOW PAINTED FLOWRATOR
C-
Model/Rev Description
CAPF*****6A A Initi al release of CAPF Dayt on Upflow/Downflow coils . CAPF*****6B A B urr Oak Louvered Fin released in place of the Wavy Fin. CAPF36***CA Redesigned for performance im provement from 2 row to 3 row. CAPF* ****6DA Replac ed exi sting c opper c oil s and other associated parts with alumi num components . CAPF*****6DB Drain pan material changed.
CHPF
-INDOOR COIL HORIZONTAL A-COIL PAINTED FLOWRATOR
C
Model/Rev Description
CHPF*****6AA Intial release of 13 SEER CHPF horizont al A c oi l.
CHPF*****6BA CHPF1824A6CB
CHPF2430B6CB CHPF3636B6CB CHPF3642C6CB CHPF3642D6CB CHPF3743C6BB CHPF3743D6BB CHPF4860D6DB
Released B urr 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 applic abl e.
Drain pan material changed.
39
PRODUCT IDENTIFICATION
CSC F
INDOOR COIL S-HORIZONTAL SLAB COIL UNPAINTE D FLOWRATOR
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 change.
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 t o alum i num coils .
CTPF
INDOOR COIL T-COATED PAINTED FLOWRATOR
C-
Model/Rev Description
CTPF*****6A A Init ial releas e of coated c oils . CT PF1824*6AB
CT PF3030*6AB CT PF3131*6AB CT PF3636*6AC CT PF3642*6AB CT PF4860*6AB
Drain pan material change.
Model/Rev Description
CT U F1824*6AA CT U F3030*6AA CT U F3131*6AA CT U F3636*6AA CT U F3642*6AA CT U F4860*6AA
CT U F1824*6AB CT U F3030*6AB CT U F3131*6AB CT U F3636*6AC CT U F3642*6AB CT U F4860*6AB
40
CTUF
INDOOR COIL T-COATED UNPA INTED FLOWRATOR
C-
Initial release.
Initial release.
ACCESSORIES
LIGHT COMMERCIAL
GSX11
Model Description GSX110903 GSX110904 GSX111203 GSX111204
FSK01A* ASC01 LAKT-01 LSK0 3*
Freeze Protection Kitxxxx Anti Short Cycle Kit xxxx Low Ambient Kit xxxx
Liquid Line Solenoid Kit
xxxx
GSZ11
Model Description GS Z110903 GSZ110904 GSZ111203 GSZ111204
FSK01A* ASC01 OT-EHR18-60 LAKT-01
LSK0 3*
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
Nominal
kW
Electrical
Characteristics
Stages
Weight
(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.
Overcurrent
Protectio n
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.
41
ACCESSORIES
ASX13
Model Description
1
ABK-20
A nchor 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-star t Kit X X X X CSR-U- 2 Hard-star t Kit X X CSR-U- 3 Hard-star t Kit X X
2
FSK01A
Fr ee ze Protection Ki t X X X X X X X LSK02A Liquid Line Solenoid K it X X X X X X X TX2N4A³ TX V 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
A nchor Bracket Kit X X X X X X X
4
A nchor 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-star t Kit X X X X CSR-U- 2 Hard-star t Kit X X CSR-U- 3 Hard-star t Kit X X
1
FSK01A
Fr ee ze Protection Ki t X X X X X X X LSK02A Liquid Line Solenoid K it X X X X X X X TX2N4A³ TX V Kit X X TX3N4 TX5N4
2
2
TXV Kit X X
TXV Kit X X X CSB- 1 5 Sound Blanket Kit X X X CSB- 1 6 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 Liqu id Line Solen o id Kit X X X X X TX3N4 TX5N4
3
3
TXV Kit X
TXV Kit XXXX CSB-15 Sou nd Blanket Kit X X X X
CSB-16 Sou nd Blanket Kit X LAKT01 Low Ambient Kit X X X X X 0163R000 02 Crank case He at er K it X 0163R000 03 Crank case He at er K it X X 0163R000 04 Crank case He at er K it X X
42
GSX13
0483*
GSX1 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 Description
1
ABK-20
Anchor Bracket Kit XXXXXXX
ASX14
018
ASC01Anti-Short Cycle Kit X XXXXXX CSR-U- 1 Hard-start K it X X X X CSR-U- 2 Hard-start K it X X CSR-U- 3 Hard-start K it XX
1
FSK01A
Fr ee ze Prot ection K it X X X X X X X LSK 02A Liquid Line Solenoid Kit X X X X X X X TX2N4A TXV K it X X TX3N4 TXV Kit X X
TX5N4TXV Kit XXX
GSX14
Model Description
1
ABK-20 ASC01 CSR-U-1 CSR-U-2 CSR-U-3
FSK01A
Anchor Bracket Kit XXXXXXX
A nti-Short Cycle Kit
Hard-start Kit
Hard-start Kit
Hard-start Kit
1
Fr ee ze Prot ection K it LSK 02A 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 B lanket Kit
Sound B lanket Kit
GSX14
018
XXXXXXX XXXX
XXXXXXX
XX
XXXXX
ASX14
024
GSX1 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 Description
1
ABK-20
Anchor Bracket Kit XXXXXXX
SSX14
018
ASC01Anti-Short Cycle Kit XXXXXXX CSR-U- 1 Hard-start K it X X X X CSR-U- 2 Hard-start K it X X CSR-U- 3 Hard-start K it XX
1
FSK01A
Fr ee ze Prot ection K it X X X X X X X LSK 02A Liquid Line Solenoid Kit X X X X X X X TX2N4A TXV K it X X
2
TX3N4 TX5N4
1
I ns tal l ed on i ndoor coi l
2
Requ ir e for heat pu m p appl i catio ns w her e am b ie nt tem peratures fal l bel ow 0°F w it h 50% or hi gher r el ati v e hum i dy.
TXV Kit X X
2
TXV Kit XXX
SSX14
024
SSX14
030
SSX14
036
SSX14
042
SSX14
048
SSX14
060
43
ACCESSORIES
1
il
1
SSX16
Model D escription
1
ABK-20
A nchor Bracket Kit X X X X X X
SSX16
024*
ASC01 A nti-Short Cycle Kit X X X X X X CSR-U-1 Hard- start K it X X X CSR-U-2 Hard- start K it X X CSR-U-3 Hard- start K it X X
1
FSK01A
Fr ee ze Prot ectio n K i t X X X X X X LSK 02A Liquid Line So len oid K it X X X X X X TX2N4A TXV Kit X TX3N4 TX V Kit X X TX5N4 TX V Kit X X X
Installed on indoor co
hum i dy.
ASX16/DSX16
Model D escription
1
ABK-20
A nchor Bracket Kit X X X X X X ASC01 A nti-Short Cycle Kit X X X X X X CSR-U-1 Hard- start K it X X X CSR-U-2 Hard- start K it X X CSR-U-3 Hard- start K it X X
1
FSK01A
Fr ee ze Prot ectio n K i t X X X X X X LSK 02A Liquid Line So len oid K it X X X X X X TX2N4A TXV Kit X
TX3N4 TX V Kit X X TX5N4 TX V Kit X X X
Installed on indoor coil
hum i dy.
A/DSX16
024*
SSX16
030*
A/DSX16
030*
SSX16
036*
A/DSX16
036*
SSX16
042*
A/DSX16
042*
SSX16
048*
A/DSX16
048*
SSX16
060*
A/DSX16
060*
ASX/ G SX16 ( Rev F or Lat er )
Model D escription
A/GSX16
018F*
A BK-20 A nchor Bracket Kit X X X X X X X X ASC01 A nti-Short Cycle Kit X X X X X X X X CSR-U-1 Hard- start K it X X X X CSR-U-2 Hard- start K it X X CSR-U-3 Hard- start K it X X X FSK01A Free ze Protection Kit X X X X X X X X LSK 02A Liquid Line So len oid K it X X X X X X X X TXV-30 Fixed TXV Kit X X X TXV-42 Fixed TXV Kit X X TXV-48 Fixed TXV Kit X TXV-60 Fixed TXV Kit XX
1
Installed on indoor coil
2
Required for heat pump applications where ambient temperatures fall below 0°F with 50% or higher relative humidy.
44
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
A nchor Bracket Kit X X X
A/DSX18
036*
ASC01 Anti-Sh ort Cycle Kit X X X CSR-U- 1 Hard-start K it X CSR-U- 2 Hard-start K it X CSR-U- 3 Hard-start K it X X FSK01A
1
Fr e eze Prot e c tion K it X X X LSK 02A Liquid Line S ole noid K i t 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 fall below 0°F with 50% or higher relative humidity.
A/DSX18
048*
/DSX18
060*
45
ACCESSORIES
ASZ13
Model D escription
ASZ13
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 Kit X X
TXV Kit X X
TXV Kit XXX
ASZ13
024
ASZ13
030
ASZ13
036
ASZ13
042
ASZ13
048
ASZ13
060
46
ACCESSORIES
GSZ13
Model D escription
AFE18-60A ASC01
All-Fuel Kit Anti - S hort 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 B lanket Sound B lanket
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 Kit X X TXV Kit X X
TXV Kit
XXX
GSZ 13 Three- Phase
Model D escription
GSZ13
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 Kit X X
TXV Kit 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.
GSZ13
048*
GSZ13
048*
GSZ13
060*
GSZ13
060*
47
ACCESSORIES
SSZ14
Model D escription
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 TX2N4A ³ TXV K it X X TX3N4³ TXV Kit X X X
TX5N4³
TXV Kit XX X
ASZ14
Model D escription
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 TX2N4A ³ TXV K it X X TX3N4³ TXV Kit X X X
TX5N4³
TXV Kit 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
GSZ14
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 TX2N4A ³ TXV K it X X TX3N4³ TXV Kit X X
TX5N4³
TXV Kit X X X CSB- 1 5 Sound Blank et Kit X X X CSB- 1 6 Sound Blank et Kit XXXX
1
Installed on indoor coil
2
Required for heat pump applications where ambient temperatures fall below 0°F w ith 50% or higher relati ve humidy.
GSZ14
024*
GSZ14
030*
GSZ14
036*
GSZ14
042*
GSZ14
048*
GSZ14
060*
48
ACCESSORIES
l
ASZ16/DSZ16
Model Description
A/DSZ16
024*
AF E 18 - 60A All-Fuel K it X X X X X X CSR-U- 1 Hard-start K it X X X CSR-U- 2 Hard-start K it X X CSR-U- 3 Hard-start K it XX
FSK01A
1
Freeze Pr otection K it X X X X X X LSK 02A Liquid Line Solenoid K it X X X X X X OT/ E H R18- 60 E mergenc y Heat Rela y Kit X X X X X X OT18-60 A² Outdoor Thermostat w / Lock o ut Stat X X X X X X TX2N4A TXV K it X TX3N4 TXV Kit X X TX5N4 TXV Kit X X X
1
Instal l ed on indoor coil
2
Required for heat pum p ap plications where am bient tem peratures fal l below 0°F with 50% or higher relative hum idity.
SSZ16
Model Description
AF E 18 - 60A All-Fuel K it X X X X X X CSR-U- 1 Hard-start K it X X X CSR-U- 2 Hard-start K it X X X X CSR-U- 3 Hard-start K it XX
FSK01A
1
Freeze Pr otection K it X X X X X X LSK 02A Liquid Line Solenoid K it X X X X X X OT/ E H R18- 60 E mergenc y Heat Rela y Kit X X X X X X OT18-60 A² Outdoor Thermostat w / Lock o ut Stat X X X X X X TX2N4A TXV K it X TX3N4 TXV Kit X X TX5N4 TXV Kit X X X
1
Instal l ed on indoor coi
2
Required for heat pum p ap plications where am bient tem peratures fal l below 0°F with 50% or higher relative hum idity.
SSZ16
024*
A/DSZ16
030*
SSZ16
030*
A/DSZ16
036*
SSZ16
036*
A/DSZ16
042*
SSZ16
042*
A/DSZ16
048*
SSZ16
048*
A/DSZ16
060*
SSZ16
060*
49
ACCESSORIES
0°F with 50%
high
idy
refrigerant metering 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 LSK 02A Liquid Line Sole noid Kit X X X OT/E HR18- 60 Emergency Heat Relay Kit X X X OT18-60 A² Outdoor Thermostat w/ Loc k out St a t X X X TX2N4A³ TXV Kit TX3N4³ T XV Kit X TX5N4³ T XV Kit X X
I nstal l ed on i ndoor coil
1
Require for heat pump applications where ambient temperatures fall below
2
³ F i el d-inst al l ed, non-bleed, ex pansi on val v e ki t — Cond ens in g unit s a nd heat pu m ps w i th r eci pr ocati ng comp r ess or s re qui r e the use of star t -as si st components w hen used i n conjunction w it h an indoor coil usi ng a non-bleed therm al expansi on v alv e
.
A/DSZ18
048*
or
er r elative hum
A/DSZ18
060*
.
50
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 L A RE CONNECTION
SEAL SUPP L IE D W/ KIT
REMOVE BEFORE INSTALLI NG EXP ANS IO N 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
REMO VE BEFO RE INSTALLING EXPANSION VALVE
OT/EHR18-60
OUTDOOR THERMOSTAT & EMERGENCY HEA T RELA Y
OT18-60
Thermo stat
DEAD DIAL
45º
Dial
COLD WARM
Set Point Indicator
Mark
(Shown @ Oº F)
(Turn Clockwise)
(Turn Counterclockwise)
Not for use with
ComfortNet System
51
315º
Set Point
djustmen t
Screw
ACCESSORIES
Wire Nut
FSK01A
FREEZE THERMOST AT
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
52
ACCESSORIES
COIL ACCESSORIES
COIL MODEL
CA*F18246* CA*F30306* CA*F31316* CA*F36366* CA*F36426* CA*F37436* CA*F48606*
CA*F49616* CHPF18246* CHPF24306* CHPF36366* CHPF36426* CHPF37436* CHPF48606*
CSCF1824N6* CSCF3036N6* CSCF3642N6* CSCF4860N6*
TX2N4A TXV KIT
TX3N4
TXV KIT
TX5N4
TXV KIT
FSK01A FREEZE
PROTECTION K IT
XX
XX
XX X
XX
X
X
XX
XX
XX
XX X
BLOWER
NO HEAT
MBR0800AA-1AA MBR1200AA-1AA MBR1600AA-1AA MBR2000AA-1AA
MBE1200AA-1AA MBE1600AA-1AA MBE2000AA-1AA MBE1200AA-1BA MBE1600AA-1BA MBE2000AA-1AA
X = Allowable combination s
- = Restr ic ted combination s
-XXXXX- -
-XXXXXXXXX
-XXXXXXXXX
-XXXXXXXXX
----XX----
-----X----
-----X----
-XXXXX- - - -
-XXXXX- - - -
-XXXXX- - - -
HK* SERIES ELETRIC HEA T KITS -
ELECTRIC HEAT KIT APPLICATIONS - MBR, MBE
ELEC TRIC HEA T KIT
HKR-03*
^ = Circuit 1: S i ngle P hase f or 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*
^HKR3-15*
^HKR3-20A
53
ACCESSORIES
ELECTRIC HEAT KIT APPLICATIONS - ARPF
ARPF 1 824
1/16
ARPF 1931
1/16
ARPF3030
1/16
ARPF 3642
1/16
ARPF 3743
1/16
ARPF 4860
1/16
HKR-03* XXXXXX HKR-05*, HK R-05C* X X X X X X HKR-06* XXXXXX HKR-08*, HK R-08C* X HKR-10*, HK R-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
* Revisi on level that m ay or m ay not be des ignat ed C Circuit break er opt ion ^ Heat k it required t hree-phas e power s upply
1
Air handler m us t eit her be on m edium or high speed
2
Air handler m us t be on hig h s peed
3
For st at ic pres s ure of 0.6 or higher, ai r handler m us t 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
54
ACCESSORIES
HKR-03* X X X X HK R-05* , H KR -05C* X X X X HKR-06* X X X X HRK- 08* , H KR -08C* X HK R-10* , H KR -10C* HKA-15C* HKA-20C*
^HKR3-15* ^HKR3-20*
*
Revision level that may or may not be designated C Circuit Breaker option ^ Heat kit requires 3-phase power supply
ELECTRIC HEAT KIT APPLICATIONS - ADPF
ADPF182416 ADP F304216 ADPF486016 ADPF448601 6
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
Air handler must be on speed 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
AEPF183016 AEPF303616 AEPF313716 AEPF426016
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 *
*
Revision level that may or may not be designated
C Circuit Breaker option
1
This heater kit can be used ONLY for 1000 CFM or higher applications
2
This heater kit can be used ONLY for 1200 CFM or higher applications
1
X
X
2
X
55
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*
*
Revisio n lev e l t hat m ay or ma y not b e desi gn at ed C Circuit Breaker option + Heat kit requires 3-phase power supply
1
Air handl er must be on speed ta p 2 , 3, 4 or 5
2
A ir ha ndl e r mu s t be on s p ee d t a p 4 or 5
3
Air handler must be on speed tap 3, 4 or 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 INSULA TION KITS ARUF**14**, ARPT**14**, ASPT**14** & ASUF**14**
MODEL LIST FOR DOWNFLOW KITS
DFK-B
Downfl ow Kit
ARUF18B14** ARUF30C14** ARUF48D14** ARUF24B14** ARUF36C14** ARUF60D14** ARUF30B14** ARUF42C14** ARPT36D14** ARPT18B14** ARPT36C14** ARPT42D14** ARPT24B14** ASPT36C14** ARPT48D14** ARPT30B14** ASPT42C14** ARPT60D14**
ASPT24B14** ASPT48C14** ASPT48D14**
DFK-C
Downfl ow Kit
ASUF49C14** ASPT60D14**
DFK-D
Downfl ow Kit
ASUF59D14**
56
ACCESSORIES
ARPT**14**
H eat Kit Applicati ons
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
57
ACCESSORIES
ARUF**14**
Heat Kit Applicati ons
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*
* Revision level that may or may not be designated
Refe r to the mi n i mu m air fl ow req u i r emen ts for each of th e h e a t k i ts.
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
Minimum CFM required for Heater Kits
3 5 6 8 10 15 19 20 25
58
HEATER (kW)
ACCESSORIES
ASUF**14**
Heat Kit Applications
TYPE/MODEL 29B14-A* 39C14-A* 49C14-A* 59D14-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 or may not be designated.
Refer to the minimum airflow requirements for each of the heat kits.
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
Minimum CFM required for Heater Kits
3 5 6 8 10 15 19 20 25
HEATER (kW )
59
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* XXXXXXXX HKSX05XC* XXXXXXXX HKSX06XC* XXXXXXXX HKSX08XC* XXXXXXXX HKSX10XC* XXXXXXXX HKSX15XF* X X X X X X HKSX20XF* X X X X X X HKSC05 XC* X X X X X X X X HKSC08 XC* X X X X X X X X HKSC10 XC* X X X X X X X X HKSC15 XA* X X X X X X HKSC15 XB* X X X X X X HKSC15 XF* X X X X X X HKSC19 C A* X X X HKSC19 C B* X X X HKSC20 D A* XXX HKSC20 D B* XXX HKSC20 XF* X X X X X X HKSC25 D C* 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 71 5 71 5 875
730 715 71 5 71 5 950 NR NR ASPT36C14* NR ASPT42C14* NR ASPT48C14* NR ASPT42D14* NR ASPT48D14* NR ASPT60D14* NR
Minimum CFM required for Heater Kits
60
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 airflow requirements 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 60 0 7 00 750 875 950 NR NR NR NR AVPTC36C14 NR 850 900 1000 1200 1440 1500 1500 NR AVPTC48C14 NR 850 900 1000 1200 1440 1500 1500 NR
AVPTC42D14 AVPTC48D14 AVPTC60D14
Note: Airflow data shown applies to the electric heat only in either legacy mode or communicating mode operation NR - Not rated * Within thermostat user menu CTK0* communicating thermostat will di splay 20KW for OFF- OFF- ON dip switch selection, 21kW for
†For match up with a 2 ton outdoor unit: Heater kit application shall not exceed 10 kW.
Airflow for 5 kW up to 10 kW heater kits shall 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.
Airflow 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 exceed 20 kW.
Airflow for 5 kW up to 20 kW heater kits shall be set to 1500 cfm speed tap of ON-OFF-OFF
** 3 kW heater kit is not applicable for 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 CF M REQUIRED F OR HEATER KITS , See notes below
61
ACCESSORIES
ARUF & ASPT
MO DEL LI ST FOR DO WNFLO W KIT
DFK-B DFK-C DFK-D
DOWNFLOW KIT DOWNFLOW 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 KI T (kW )
MI NIMUM CF M REQUIRED FO R HEAT ER KI T S
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)
62
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%.
63
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.
64
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.
65
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.
66
SYSTEM OPERATION
COOLING CYCLE
Reversing Va lve
(Energized)
Indoor
Coil
HEATING CYCLE
Outdoor
Coil
Accumulator
Thermostatic
Expansion
Valve
Bi-Flow
Filter Dryer
Check Valve
Indoor
Coil
Reversing Va lve
(De-Energized)
Outdoor
Coil
Accumulator
Thermostatic
Expansion
Valve
Bi-Flow
Filter Dryer
Check Valve
67
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.
68
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.
69
TROUBLESHOOTING CHART
COOLING/HP ANALYSIS CHART
Com p laint
POSSIBLE CAUSE
DOTS IN ANALYSIS
GUIDE INDICATE
"POS SIBL E CAUSE"
Pow er Failure 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 Ov er load Open Shorted or Grounded Compressor Compre s sor 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 Air 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 Conden sing Air Infiltration of Outdoor Air Improperly Lo cated Thermostat Air Flow Unbalanced System Undersiz e d Broken Internal Parts Broken Valves Inefficient 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 Cooling
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
Unsatis facto r y
Cooling/Heating
System runs continuously - little cooling/htg
Too cool and then too warm
••
••
••
••••••
••
••
••
••
••
••
••
••
••
••
••
••
•• ••
♦♦
••
••
••
••
••
••
••
••
••
••
••
••
••• ••
••• ••
••
•••
••
Cooling or Heating Cy cle (Heat Pump)
••
System
Ope rating
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
••
••
••
••
♦♦♦ ♦♦♦
♦♦♦♦♦
♦♦♦♦♦♦♦
Heating Cycle Only (Heat Pump)
Test Method
Re medy
See Service Procedure Ref.
Test Voltage S-1 Inspect Fuse Size & Type S-1 Test Voltage S-1 Ins pe ct 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-17B Use Tes t Cord S-17D Test Continuity of Coil & Contacts S-7, S-8 Test Continuity of Coil And Contacts S-7 Test Control Circuit w ith Voltmeter S- 4 Test Voltage 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 Blower Speed, Duct Static Press, Filter S-200 Reduce Blow er Spe ed S-200 Recov er Part of Charge S-113 Inspect Coil - Clean Recov er Charge, Evacuate, Recharge S-114 Remove Obstruction to Air Flow Check Window s , Doors, Vent Fans , Etc. Relocate Thermostat Readjust Air Volume Dampers Refigure Cooling Load Replace Compresso r S-115 Test Compressor Efficiency S-104 Test Compressor Efficiency S-104 Replace V alv e S-110 Remove Restriction or Replace Expansion Device S-110 Replace V alv e Replace V alv e Tighten Bulb Bracket S-105 Check Valve Operation S-110 Tigh ten B olts Replace Valve or Solenoid S-21, 122 Test Contro l S-24 Test Defros t Thermostat S-25 Check Flow r ator & Seat or Replace Flow rator S-111
70
SERVICING
TABLE OF CONTENTS
SERVICING ...........................................................................71
S-1 CHECKING VOLT AGE.............................................72
S-2 CHECKING WIRING ............................................... 72
S-3 CHECKING THERMOSTA T AND WIRING ..............72
S-3A THERMOSTAT WIRING........................................... 72
S-4 CHECKING TRANSFORMER AND CONTROL
CIRCUIT..................................................................73
S-7 CHECKING CONTACTOR AND/OR RELAYS .........73
S-8 CHECKING CONTACT OR CONTACTS..................73
S-9 CHECKING FAN RELA Y CONT ACTS ..................... 74
S-10 MBR/AR*F ELECTRONIC
BLOWER TIME DELAY RELAY............................75
S-11 CHECKING LOSS OF CHARGE PROTECTOR.....75
S-12 CHECKING HIGH PRESSURE CONTROL ........... 75
S-13 CHECKING LOW PRESSURE CONTROL............75
S-10 COPELAND COMFORT ALER T™ ..........................76
S-10B COPELAND CORESENSE™................................. 76
S-15 CHECKING CAP ACITOR ........................................82
S-15A RESISTANCE CHECK USING A DIGIT AL MUL TI-
METER ....................................................................82
S-15B CAPACITANCE CHECK USING A DIGIT AL
MUL TI-METER (IN CAP ACIT ANCE MODE) .........82
S-16A CHECKING FAN AND BLOWER
MOTOR WINDINGS (PSC MOTORS) .................83
S-16B CHECKING F AN AND BLOWER MOTOR
(ECM MOTORS) ..................................................83
S-16C CHECKING ECM MOTOR WINDINGS ...................84
S-16D ECM CFM ADJUSTMENTS MBE / AEPF .................84
S-16E BLOWER PERFORMANCE DA TA...........................88
S-16F CHECKING HIGH EFFICIENCY MOTORS.............88
S-16G EEM BLOWER REPLACEMENT ............................89
S-17 CHECKING COMPRESSOR ..................................90
S-17A RESISTANCE TEST ................................................91
S-17B GROUND TEST ...................................................... 91
S-17C UNLOADER TEST PROCEDURE..........................91
S-17D OPERATION TEST ..................................................92
S-17E CHECKING 3-PHASE SCROLL COMPRESSOR
ROTATION.....................................................................92
S-18 TESTING CRANKCASE HEA TER
(OPTIONAL ITEM)................................................93
S-21 CHECKING REVERSING V AL V E
AND SOLENOID..................................................93
S-24 TESTING DEFROST CONTROL
S-25 TESTING DEFROST THERMOSTAT ......................93
S-50 CHECKING HEATER LIMIT CONTROL(S).............99
S-52 CHECKING HEA TER ELEMENTS..........................99
S-60 ELECTRIC HEA TER (OPTIONAL ITEM).................99
S-61A CHECKING HEATER LIMIT CONTROL(S)...........100
S-61B CHECKING HEATER FUSE LINK ........................100
(OPTIONAL ELECTRIC HEA TERS)......................100
S-62 CHECKING HEA TER ELEMENTS........................101
S-100 REFRIGERATION REP AIR PRACTICE ................101
S-101 LEAK TESTING
(NITROGEN OR NITROGEN-TRACED).............101
S-102 EVACUATION ........................................................101
S-103 CHARGING ...........................................................102
S-104 CHECKING COMPRESSOR EFFICIENCY ..........103
S-106 OVERFEEDING.....................................................104
S-107 UNDERFEEDING .................................................104
S-108 SUPERHEAT.........................................................104
S-109 CHECKING SUBCOOLING ..................................107
S-1 10 CHECKING EXP ANSION V AL VE OPERA TION.........107
S-112 CHECKING RESTRICTED LIQUID LINE.............107
S-113 OVERCHARGE OF REFRIGERANT .....................107
S-114 NON-CONDENSABLES .......................................108
S-115 COMPRESSOR BURNOUT .................................108
S-120 REFRIGERANT PIPING........................................109
S-201 CLEANING ALUMINUM COILS ................................109
S-202 DUCT STATIC PRESSURES
AND/OR ST A TIC PRESSURE DROP
ACROSS COILS ................................................109
S-203 SINGLE PIECE AIR HANDLER
EXTERNAL ST A TIC............................................109
S-203A TWO PIECE AIR HANDLER
EXTERNAL ST A TIC PRESSURE ......................109
S-204 COIL ST ATIC PRESSURE DROP.........................110
............................93
HIGH VOLT AGE! Disconnect ALL power before servicing or installing. Multi ple power sources may be present. Failure to do so may cause pr operty damage, personal injury or death.
71
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
Voltag e 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 pr es ent. Fa ilur e t o do s o ma y cause pro pe rty dam age , pe rs onal in jury 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.
72
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 VOLT AGE! 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 V oltage 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.
73
SERVICING
T2
VOLT/OHM
METER
Ohmmeter for testing holding co il Voltmete r f o r te st in g con ta cts
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 co il Voltmeter for testing contacts
TESTING COMPRESSOR CONTACTOR
(Three-Phase)
S-9 CHECKING FAN RELAY CONTACTS
HIGH VOLT AGE! 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 VOLT AGE! 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 V oltage 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.
74
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 VOL TAGE! Disconnect ALL power before servicing or installing. Multiple power sources may be present. Failure to do so may cause pr ope rty dam age , pe rs onal inju ry 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.
75
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-10BCOPELAND CORESENSE™
DIAGNOSTICS - 3-WIRE MODULE
Applies to ASX /ASZ and DSX/DSZ units
Bold line shows field installed wiring
Dashed line shows thermostat demand wiring 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 Contactor ECB Electronic C ontrol Board
(Defrost or Time Delay)
Wiring Schematic - 3-Wire Comfort Alert Module
LPCO
C
HPCO
HIGH VOL TAGE! Disconnect ALL power before servicing or installing. Multiple power sources may be present. Failure to do so may cause pr ope rty dam age , pe rs onal inju ry 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.)
76
SERVICING
DIAGNOSTICS TABLE: 2-WIRE COMFORT ALERT MODULE
Status LED Status LED Description S tatus LED Troubleshooting Information Gree n “ P OWER” Modu le h a s powe r Re d “ T RI P ”
Yellow “ALERT” Long Run Tim e
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” Ope n Circuit
Flash Code 5
Yellow “ALERT” Ope n Start Circuit
Flash Code 6
Yellow “ALERT” Ope n Run Circuit
Flash Code 7
Yellow “ALERT” Low Voltage
Flash Code 9
Thermost at dem and s igna l 1. Com p ressor protect or is open Y1 is present, but the 2. Outdoor unit power disconnect is open com pres s o r is not 3. Com pres s or c irc uit break er or fuse(s) is open running 4. Brok en wi re or connec t or is not m ak ing c ont ac t
Compress or is 2. Evaporator blower is not running running ex t rem ely 3. E vaporator coil i s froze n long run cycles 4. F ault y m et ering device
Disc harge or suction 2. Condenser coil poor air circulation (dirty, bloc k ed, dam aged) press ure out of limit s or 3. Condens e r fan is not runnin g com pressor overloaded 4. Return air duct has subs tantial leak age
Compres s o r is running 2. Time delay relay or c ont rol board defect ive only briefly 3. If high press ure s wit c h pres ent go to Flas h Code 2 informat ion
Current only in run c irc uit 2. O pen c irc uit in c om pres s or s t art wiring or c onnec t ions
Current only in s t art c irc uit 2. Com pres s or run winding is dam ag ed
Control c irc uit < 1 7V A C 2. Low line voltage (cont ac t ut ili ty if voltage at dis c o nnec t i s low)
Suppl y voltage is present at m odu le t erm in als
5. Low pressure switc h open if present in sy s tem
6. Com pres s or c ont ac tor has failed open
1. Low refrigerant c harge
5. Condenser coil is dirty
6. Liquid line res tric t ion (filter drier bloc k ed if present in s y s t em )
7. Thermos t at is m al funct ioning
1. High head press ure
5. If low press ure switc h present in s ys t em, c heck Flash Code 1 information
1. Thermostat demand signal is intermittent
4. If low pressure s wit c h pres ent go to F las h Cod e 1 informati on
1. Run capacitor has failed
2. Low line voltage (c ont ac t uti lit y i f voltage at dis c onnec t is low)
3. E x c es s ive liquid refrigerant in com pres s or
4. Com pres s or bearings are s eiz ed
1. Out door unit power dis c onn ec t is op en
2. Com pres s or c irc uit break er or fuse(s ) is open
3. Com pres s or c ont ac tor has failed open
4. High pres s ure s wit c h is open an d requires m anual res et
5. Ope n c ircui t in c om pres s or sup ply wiring or c onnec t ions
6. Unus ual ly long c om pres s or prot ec tor res et tim e due t o e x t rem e ambient t em perat ure
7. Com pres s or windings are dam age d
1. Run capacitor has failed
3. Com pres s or s tart winding is dam a ged
1. Ope n c ircui t in c om pres s or run wiring or conne c tions
1. Control circuit transformer is overloaded
FLASH CODE NUMBER CORRESPONDS TO A NUMBER OF LED FLASHES, FOLLOWED BY A P AUSE AND THEN REPEA TED
TRIP AND ALERT LEDS FLASHING A T SAME TIME MEANS CONTROL CIRCUIT VOL T AGE IS TOO LOW FOR OPERATION.
LAST ALERT FLASH CODE IS DISPLA YED FOR 1 MINUTE AFTER MODULE IS POWERED ON.
77
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 High Temperature Cut Out Switch HPC O High P r essur e Cut Out Swit ch LPCO Low Pressure Cut Out Switch
C
Y
Schematic Abbreviation Descriptio ns
CC Compressor 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 Pressure Cut Out Switch
LPCO Low Pressur e 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 VOL TAGE! Disconnect ALL power before servicing or installing. Multiple power sources may be present. Failure to do so may cause pr ope rty dam age , pe rs onal inju ry 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.
78
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
79
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.
80
SERVICING
Table 1 - Quick Reference Table
81
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-15A RESISTANCE 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 VOLT AGE! 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 han dling.
2. Connect the Meter leads to the Capacitor terminals.
3. Digital meter will show a reading momentarily (Figure 1). Note the reading.
82
S-15BCAPACITANCE 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-16A CHECKING 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-16BCHECKING 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.
83
SERVICING
S-16CCHECKING ECM MOTOR WINDINGS
HIGH VOLT AGE! 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 Indoor Thermostat 5Cooling & Heat 6 Pump CFM 7
8
Function
El ectric Heat
CFM Tr i m A djus t
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.
84
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/H eat Pump Operation
Model S w itch 5 Swi t c h 6 CFM
1,200 1,000
800
1,600 1,400 1,200
2,000 1,800 1,600
MBE1200
MBE1600
MBE2000
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
THERMOSTA T “FAN ONL Y” 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.
Di p switch Number F un ctio n
1 2 3N/A 4 Indoor Thermostat 5 6 7 8
Table 9
Electric Heat
Cooling & Heat Pump CF M
CFM Trim A dju st
Model
AEPF1830
AEPF3036 AEPF3137 AEPF4260
Switch Switch
1278
OFF OFF OFF OFF 1100 12 10
ON OFF OFF OFF 8 9 0 9 35 OFF ON OFF OFF 700 7 7 0 OFF OFF OFF OFF 2050 2150
ON OFF OFF OFF 175 0 1835 OFF ON OFF OFF 1 600 1680
ON ON OFF OFF 1200 1260
ON ON OFF ON 1020 1070
Emergecny
(Elec tric)
Heat
Heat Pump
w/Backup
Heat
Table 10
Model
AEPF183
0
AEPF3036 ON OFF OFF OFF 4 1580 AEPF3137 OFF O N OF F OFF 3 ½ 1480 AEPF4260 ON ON OFF OFF 3 1200
Switch Switch
5678
OFF OFF OFF OFF 2 ½ 1100
ON OFF OFF OFF 2 800 OFF ON OFF OFF 1 ½ 600 OFF OFF OFF OFF 5 1800
ON ON OFF ON 2 ½ 1020
Nominal
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 Swi tch 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%.
85
SERVICING
(
y
)
g
I
d
t
d
i
l
gg
d?
Ch
k
f
l
i
fl
(t
h
l
t
t
ity)
Check
for
undercharged
condition
Check
and
plug
leaks
in
return
ducts
cabinet
I
t
t
N
t
U
i
g
th
g
t
/
t
l
d
l
id
ll
d
t
ti
d
y
d
t
d
lt
y
y
g
g
g
y
y
y
different
86
have completel
- Turn power OFF prior to repair.
Wait 5 minutes after
disconnecting pow er before
opening motor.
- Handle electronic motor/control w ith car e.
- Turn power OFF prior to repair.
Wait 5 minutes after
disconnecting pow er before
opening motor.
- Handle electronic motor/control w ith car e.
- Check 230 V ac power at motor.
- Check lo w voltage (24 V ac R to C) at mo tor.
- Check low voltage connections
(G, Y , W, R, C) at motor.
- Check fo r unseated pins in connector s
on motor harness.
- Test w ith a temporary jumper betw een R - G.
-
- Check fo r loos e motor mount.
- Make sure blow er w heel is tight on shaft.
- Perform motor/control replacement check,
ECM motors only .
- Turn power OFF prior to repair.
- Check line voltage f o r variation or "s ag ".
- Check low voltage connections
(G, Y , W, R, C) at
motor, unseated pins in motor
harness connec tors .
- Check-out system controls - Thermostat.
- Perform Moisture Check.*
- Turn power 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 "dr i p loop" under motor.
ec
-
- Does removing panel or f ilter
reduc e "pu ffing"?
- Check/replace filter.
- Check/correct duct restrictions.
- Adjust to correct blower 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 disc on nect sw itch off or
door s w itch open.
- Blown f use or circ uit breaker.
- 24 Vac w ires misw ired.
- Unseated pins in wiring
harnes s connec tor s.
- Bad motor/control module.
- Moisture present in motor or control module.
- Loos e motor mount.
- Blow er w heel not tight on motor sha ft.
- Bad motor/control module.
- V ariation in 230 Vac to motor.
- Unseated pins in w iring harnes s
connectors.
- Erratic CFM co mmand f rom
"BK" terminal.
- Improper thermostat c on nection or setting.
- Moisture present in motor/control module.
- Incorrect or dirty filter(s ).
- Incorrect supply or retur n du ctwork.
- Incorrect 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 star t- up for
variable speed motor.
- No move ment.
- Motor rocks,
but w on't s ta rt.
- It is normal for motor to
oscillate w ith
no load on shaf t.
- Varies up and down
or intermittent.
- "Hunts" or "puffs" at
high CFM (spe ed).
e u n p
ra e
ensa
Symptom Fault Description(s) Possible Causes Corrective Action Cautions and Notes
- Motor rocks
slightly
w hen s tarting.
- Motor won't
sta rt.
- Motor
oscillates up &
dow n w hile
being tested
off of blow er .
- Motor starts,
but runs
err atically.
s con
-
*Moisture Check
- Connectors a re 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
)
g
I
d
t
d
i
l
gg
d?
Ch
k
f
l
i
fl
(t
h
l
t
t
ity)
Check
for
undercharged
condition
Check
and
plug
leaks
in
return
ducts
cabinet
I
t
t
N
t
U
i
g
th
g
t
/
t
l
d
l
id
ll
d
t
ti
d
y
d
t
d
lt
y
y
g
g
g
y
y
y
different
have completel
- Turn power OFF prior to repair.
Wait 5 minutes after
disconnecting pow er before
opening motor.
- Handle electr onic motor/con trol
w ith care.
- Turn power OFF prior to repair.
Wait 5 minutes after
disconnecting pow er before
opening motor.
- Handle electr onic motor/con trol
w ith care.
- Turn power OFF prior to repair.
- Check low voltage (Thermostat)
w ires a nd connections.
- V e r ify fan is not in delay mode -
w ait until delay complete.
- Perform motor/control replacement
check, ECM motors only.
- Is fan in delay mode? - w ait until delay time
complete.
- Perform motor/control replacement check, ECM
motors only.
- Check for Triac sw itched t'stat
or solid state relay.
CHART CONTINUED FROM PREVIOUS PAGE.
- 24 Vac wires miswired or loose.
- "R" miss ing/not con nected at motor.
- Fan in delay mode.
Troubleshooting Chart f or GE/Regal-Beloi t ECM Variable Speed Air Circul ator Blower Motors
- S tays a t low CFM d espite
system call for cool
or heat CFM.
Symptom Fault Description(s) Possible Cause s Corrective Action Cautions and No tes
- "R" miss ing/not con nected at motor.
- Fan in delay mode.
- Stays at high CFM.
- Motor starts,
but runs
erratic ally.
- Current leakage from controls
into G, Y, or W.
- Blow er w on't shut off.
- Turn power OFF prior to repair.
- Check/replace filter.
- Check/correct duct restrictions.
- Adjust to correct blow er speed setting.
- Turn power OFF prior to repair.
- Check fo r loos e blow er housing,
panels, etc.
- Check fo r air w histling thru seams in
ducts, cabinets or panels.
- Check fo r cabinet/duc t deformation.
- Turn power OFF prior to repair.
- Does removing panel or f ilter
reduc e "p uffing"?
- Check/replace filter.
- Turn power OFF prior to repair.
Wait 5 minutes after
disconnecting pow er before
opening motor.
- Handle electr onic motor/con trol
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 blow er speed setting.
- Replace motor and perf orm
Moisture Chec k.*
s.
resu e
uce unexpec
rammed for specific operatin
pro
pro
ma
.- Arran
es an
are factor
warran uc
pro s a
- High s tatic creating high blow er speed.
- Incorrect supply or return ductwork.
- Incorrect or dirty f ilter(s).
- Incorrec t blower speed setting.
- Loos e blow e r ho using, panels, etc .
- High s tatic creating high blow er
speed.
- Air leaks in ductwork, cabinets,
or panels.
- High s tatic creating high blow er speed.
- Incorrect or dirty f ilter(s).
- Incorrect supply or return ductwork.
- Incorrec t blower speed setting.
- Moisture in motor/control module.
equipment manufacturer
e vo u
mo ro
con or
. -
or as recommended b
e
- Air noise.
- Noisy blower or cabinet.
- "Hunts" or "puffs" at
high CFM (s pee d) .
- Motor failure or
malfunction has
occ u r red and moisture
is present.
u n p
ra e
ensa
s con
*Moisture Check
-
- Evidence of
- Excessive
noise.
Moistur e.
- 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:
87
SERVICING
S-16EBLOWER PERFORMANCE DATA
SPE ED STATIC
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
88
SERVICING
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.
89
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 mat erial whic h supports a hermeti c compresso r or electr ical t erminal 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 an d liquid contents of the compres sor ho us ing an d sy stem .
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.
90
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 mat erial whic h supports a hermeti c compresso r or electr ical t erminal 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 an d liquid contents of the compres sor ho us ing an d sy stem .
S-17BGROUND 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, continue to reset.
Disconnect all power to unit, making sure that 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.
all power legs are
DO NOT
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 pro perly removed. This can result in terminal and hot oil discharging.
S-17CUNLOADER 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.
91
SERVICING
Y
UNLOADER SOL E NOID
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 Plug)
HIGH VOLT AGE! 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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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.
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5.0 Defrost Operation
On heat pump units, when the room thermostat is 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.
5.1 The heat pump will be on and operating in the heating mode as described the Heating Operation in section 4.
5.2 The defrost control in the heat pump unit checks to seeif a defrost is needed every 30, 60 or 90 minutes of heat pump operation depending on the selectable setting by monitoring the state of the defrost thermostat attached to the outdoor coil.
5.3 If the temperature of the outdoor coil is low enough to cause the defrost thermostat to be closed when the defrost board checks it, the board will initiate a defrost cycle.
5.4 When a defrost cycle is initiated, the contacts of the HVDR relay on the defrost board open and turns off the outdoor fan. The contacts of the LVDR relay on the defrost board closes and supplies 24Vac to “O” and “W2”. The reversing valve is energized and the contactson HR1 close and turns on the electric heater(s). The unit will continue to run in this mode until the defrost cycle is completed.
a.For models with defrost control PCBDM133 or PCBDM160, a
30 second compressor delay at defrost initiation/termina­tion is optional. As shipped from the factory, the control is set for the delay (“DLY”), which will turn the compressor off for 30 seconds while the reversing valve shifts to/from the cooling mode position. To bypass the delay, which typically reduces sound levels during defrost mode, change the pin settings from “DLY” to “NORM”.
5.5 When the temperature of the outdoor coil rises high enough to causes the defrost thermostat to open, the defrost cycle will be terminated. If at the end of the programmed 10 minute override time the defrost thermostat is still closed, the defrost board will automatically terminate the defrost cycle.
5.6 When the defrost cycle is terminated, the contacts of the HVDR relay will close to start the outdoor fan and the contacts of the LVDR relay will open and turn off the reversing valve and electric heater(s). The unit will now be back in a normal heating mode with a heat pump demand for heating as described in the Heating Operation in section 4. See section 5.4a.
MBE/AEPF WITH GSX, SSX, ASX, DSX, VSX
MBE ELECTRONIC BLOWER TIME DELA Y RELA Y AEPF AIR HANDLER
SEQUENCE OF OPERATION
This document covers the basic sequence of operation for a typical application with a mercury bulb thermostat. When a digital/electronic thermostat is used, the on/off staging of the auxiliary heat will vary. Refer to the installation instructions and
wiring diagrams provided with the MBE/AEPF for specific wiring connections, dip switch settings and system configuration.
MBE/AEPF WITH SINGLE STAGE GSX, ASX, SSX, and VSX CONDENS­ERS
When used with a single stage GSX, SSX, ASX, and VSX condens­ers, dip switch #4 must be set to the on position on the VSTB inside the MBE/AEPF. The “Y” output from the indoor thermostat must
be connected to the yellow wire labeled “Y/Y2” inside the wire bundle marked “Thermostat” and the yellow wire labeled “Y/Y2” inside the wire bundle marked “Outdoor Unit” must be connected to “Y” at the condenser. The orange jumper wire from terminal “Y1” to terminal“O” on the VSTB inside the MBE/AEPF must remain connected.
1.0 Cooling Operation
1.1 On a demand for cooling, the room thermostat energizes “G”
and “Y” and 24Vac is supplied to “G” and “Y/Y2” of the MBE/AEPF unit. The VSTB inside the MBE/AEPF will turnon the blower motor and the motor will ramp up to the speed programmed in the motor based on the settings for dip switch 5 and 6. The VSTB will supply 24Vac to “Y” at the condenser and the compressor and condenser are turned on.
1.2 When the cooling demand is satisfied, the room thermostat removes the 24Vac from “G” and “Y”. The MBE/AEPF removes the 24Vac from “Y’ at the condenser and the compressor and condenser fan are turned off. The blower motor will ramp down to a complete stop based on the time and rate pro­grammed in the motor.
2.0 Heating Operation
2.1 On a demand for heat, the room thermostat energizes “W1”
and 24Vac is supplied to terminal “E/W1” of the VSTB inside the MBE/AEPF unit. The VSTB will turn on the blower motor and the motor will ramp up to the speed programmed in the motor based on the settings for dip switch 1 and 2. The VSTB will supply 24Vac to heat sequencer HR1 on the electric heater assembly.
2.2 HR1 contacts M1 and M2 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.
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. For the
3rd and 4th heater elements to operate on a second stage heat demand, the PJ4 jumper on the VSTB inside the MBE/AEPF must be cut. With the PJ4 jumper cut, the VSTB will run the blower
motor on low speed on a “W1” only demand. 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 and the blower motor will change to high speed. When the “W2” demand is satisfied, the room thermostat will remove the 24Vac from “W2” and the VSTB 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 and the blower motor will change to low speed. 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.
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2.3 When the “W1” heat demand is satisfied, the room thermo-
stat will remove the 24Vac from “E/W1” and the VSTB re­moves the 24Vac from HR1. The contacts on HR1 will open between 30 to 70 seconds and turn off the heater element(s) and the blower motor ramps down to a complete stop.
MBE/AEPF WITH SINGLE STAGE
GSZ, SSZ, ASZ, and VSZ HEAT PUMPS
When used with a single stage GSZ, SSZ, ASZ, or VSZ heat pumps, dip switch #4 must be set to the ON position on the VSTB inside the MBE. The “Y” output from the indoor thermostat must be connected to the yellow wire labeled “Y/Y2” inside the wire bundle marked “Thermostat” and the yellow wire labeled “Y/Y2” inside the wire bundle marked “Outdoor Unit” must be connected to “Y” at the heat pump. The orange jumper wire from terminal
“Y1” to terminal “O” on the VSTB inside the MBE/AEPF must be removed.
3.0 COOLING OPERA TION
On heat pump units, when the room thermostat is set to the cooling mode, 24Vac is supplied to terminal “O” of the VSTB inside the MBE/AEPF unit. The VSTB will supply 24Vac to “O” at the heat pump to energize 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 terminals “G” and “Y/Y2” of the MBE/AEPF unit. The VSTB will turn on the blower motor and the motor will ramp up to the speed programmed in the motor based on the settings of dip switch 5 and 6. The VSTB will supply 24Vac to “Y” at the heat pump.
3.2 The heat pump is turned on in the cooling mode.
3.3 When the cooling demand is satisfied, the room thermostat
removes the 24Vac from “G” and “Y/Y2” of the MBE/AEPF and the VSTB removes the 24Vac from “Y” at the heat pump. The heat pump is turned off and the blower motor will ramp down to a complete stop based on the time and rate programmed in the motor.
4.0 Heating Operation
On heat pump units, when the room thermostat is 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 se­quence of operation does not cover those applications.
4.1 On a demand for first stage heat with heat pump units, the room thermostat energizes “Y” and “G” and 24Vac is supplied to “G” and “Y/Y2” of the MBE/AEPF. The VSTB will turn on the blower motor and the motor will ramp up to the speed programmed in the motor based on the settings of dip switch 1 and 2. The VSTB will supply 24Vac to “Y” at the heat pump and the heat pump is turned on in the heating mode.
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 “E/W1” of the MBE/ AEPF. The VSTB will supply 24Vac to heat sequencer, HR1, on the electric heater assembly.
4.3 HR1 contacts M1 and M2 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 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. For the
3rd and 4th heater elements to operate on a third stage heat demand, the PJ4 jumper on the VSTB inside the MBE/AEPF must be cut. 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 “W/W2” of the MBE/AEPF. The VSTB will supply 24Vac to HR2 on the electric heater assembly. When the “W3” demand is satisfied, the room thermostat will remove the 24Vac from “W/W2” of the MBE/AEPF. 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 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 “E/W1” of the MBE/AEPF. 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/Y2” of the MBE/AEPF. The VSTB removes the 24Vac from “Y” at the heat pump and the heat pump is turned off. The blower motor will ramp down to a complete stop based on the time and rate programmed in the motor control.
5.0 DEFROST OPERA TION
On heat pump units, when the room thermostat is 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 de­energized position for heating except during a defrost cycle.
5.1 The heat pump will be on and operating in the heating mode as described the Heating Operation in section 4.
5.2 The defrost control in the heat pump unit checks to see if a defrost is needed every 30, 60 or 90 minutes of heat pump operation depending on the selectable setting by monitoring the state of the defrost thermostat attached to the outdoor coil.
5.3 If the temperature of the outdoor coil is low enough to cause the defrost thermostat to be closed when the defrost board checks it, the board will initiate a defrost cycle.
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5.4 When a defrost cycle is initiated, the contacts of the HVDR relay on the defrost board open and turns off the outdoor fan. The contacts of the LVDR relay on the defrost board closes and supplies 24Vac to “O” and “W2”. The reversing valve is energized and the contacts on HR1 close and turns on the electric heater(s). The unit will continue to run in this mode until the defrost cycle is completed.
a. For models with defrost control PCBDM133 or PCBDM160,
a 30 second compressor delay at defrost initiation/termi­nation is optional. As shipped from the factory, the control is set for the delay (“DLY”), which will turn the compressor off for 30 seconds while the reversing valve shifts to/from the cooling mode position. To bypass the delay, which typically reduces sound levels during defrost mode, change the pin settings from “DLY” to “NORM”.
5.5 When the temperature of the outdoor coil rises high enough to causes the defrost thermostat to open, the defrost cycle will be terminated. If at the end of the programmed 10 minute override time the defrost thermostat is still closed, the defrost board will automatically terminate the defrost cycle.
5.6 When the defrost cycle is terminated, the contacts of the HVDR relay on the defrost board will close to start the outdoor fan and the contacts of the LVDR relay will open and turn off the reversing valve and electric heater(s). The unit will now be back in a normal heating mode with a heat pump demand for heating as described in the Heating Operation in section 4. See section 5.4a.
MBE/AEPF WITH TWO STAGE ASX & DSX CONDENSERS
1.0 COOLING OPERATION
When used with the ASX & DSX two stage condensers, dip switch #4 must be set to the OFF position on the VSTB inside the MBE/AEPF. The “Y1” output from the indoor thermostat
must be connected to the purple wire labeled “Ylow/Y1” inside the wire bundle marked “Thermostat” and the purple wire labeled “Ylow/Y1” inside the wire bundle marked “Out­door Unit” must be connected to “Ylow/Y1” at the condenser. The “Y2” output from the indoor thermostat must be con­nected to the yellow wire labeled “Y/Y2” inside the wire bundle marked “Thermostat” and the yellow wire labeled “Y/ Y2” inside the wire bundle marked “Outdoor Unit” must be connected to “Y/Y2” at the condenser. The orange jumper
wire from terminal “Y1” to terminal “O” on the VSTB inside the MBE/AEPF must remain connected.
1.1 On a demand for cooling, the room thermostat energizes “G”
and “Y1” and 24Vac is supplied to “G” and “Ylow/Y1” of the MBE/AEPF unit. The VSTB inside the MBE/AEPF will turn on the blower motor and the motor will ramp up to 60% of the speed programmed in the motor based on the settings for dip switch 5 and 6. The VSTB will supply 24Vac to “Ylow/Y1” at the condenser and the compressor and condenser fan starts in low speed operation.
1.2 If first stage cooling cannot satisfy the demand, the room thermostat will energize “Y2” and supply 24Vac to the MBE/ AEPF unit. The blower motor will change to the cfm for high speed operation and the VSTB will supply 24Vac to “Y/Y2” at the condenser and the compressor and condenser fan will change to high speed operation. When the “Y2” demand is
satisfied, the thermostat will remove the “Y2” demand and the VSTB will remove the 24Vac from “Y/Y2” at the condenser. The blower will drop to 60% of the programmed cfm and the compressor and condenser fan will change to low speed. On
most digital/electronic thermostats, “Y2” will remain ener­gized until the first stage cooling demand “Y1” is satisfied and then the “G”, “Y1” and “Y2” demands will be removed.
1.3 When the first stage cooling demand, “Y1”, is satisfied, the
room thermostat removes the 24Vac from “G” and “Y1”. The MBE/AEPF removes the 24Vac from “Ylow/Y1’ at the con­denser and the compressor and condenser fan are turned off. The blower motor will ramp down to a complete stop based on the time and rate programmed in the motor.
2.0 Heating Operation
2.1 On a demand for heat, the room thermostat energizes “W1”
and 24Vac is supplied to terminal “E/W1” of the VSTB inside the MBE/AEPF unit. The VSTB will turn on the blower motor and the motor will ramp up to the speed programmed in the motor based on the settings for dip switch 1 and 2. The VSTB will supply 24Vac to heat sequencer HR1 on the electric heater assembly.
2.2 HR1 contacts M1 and M2 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.
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. For the
3rd and 4th heater elements to operate on a second stage heat demand, the PJ4 jumper on the VSTB inside the MBE/AEPF must be cut. With the PJ4 jumper cut, the VSTB will run the blower
motor on low speed on a “W1” only demand. 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 and the blower motor will change to high speed. When the “W2” demand is satisfied, the room thermostat will remove the 24Vac from “W2” and the VSTB 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 and the blower motor will change to low speed. 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
thermostat will remove the 24Vac from “E/W1” and the VSTB removes the 24Vac from HR1. The contacts on HR1 will open between 30 to 70 seconds and turn off the heater element(s) and the blower motor ramps down to a complete stop.
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MBE/AEPF WITH TWO STAGE ASZ & DSZ HEAT PUMP UNITS
3.0 Cooling Operation When used with the ASZ & DSZ two stage heat pumps, dip
switch #4 must be set to the OFF position on the VSTB inside the MBE/AEPF. The “Y1” output from the indoor thermostat
must be connected to the purple wire labeled “Ylow/Y1” inside the wire bundle marked “Thermostat” and the purple wire labeled “Ylow/Y1” inside the wire bundle marked “Out­door Unit” must be connected to “Y” at the heat pump. The “Y2” output from the indoor thermostat must be connected to the yellow wire labeled “Y/Y2” inside the wire bundle marked “Thermostat” and the yellow wire labeled “Y/Y2” inside the wire bundle marked “Outdoor Unit” must be connected to “Y/ Y2” at the heat pump. The orange jumper wire from terminal
“Y1” to terminal “O” on the VSTB inside the MBE/AEPF must be removed.
On heat pump units, when the room thermostat is set to the cooling mode, 24Vac is supplied to terminal “O” of the VSTB inside the MBE unit. The VSTB will supply 24Vac to “O” at the heat pump to energize 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 “Y1” and 24Vac is supplied to “G” and “Ylow/Y1” of the MBE unit. The VSTB inside the MBE will turn on the blower motor and the motor will ramp up to 60% of the speed programmed in the motor based on the settings for dip switch 5 and 6. The VSTB will supply 24Vac to “Y” at the heat pump and the compressor and outdoor fan starts in low speed operation.
3.2 If first stage cooling cannot satisfy the demand, the room thermostat will energize “Y2” and supply 24Vac to “Y/Y2”of the MBE unit. The blower motor will change to the cfm for high speed operation and the VSTB will supply 24Vac to “Y2” at the heat pump. The compressor and outdoor fan will change to high speed operation. When the “Y2” demand is satisfied, the thermostat will remove the “Y2” demand and the VSTB will remove the 24Vac from “Y2” at the heat pump. The blower will drop to 60% of the programmed cfm and the compressor and outdoor fan will change to low speed operation. On most
digital/electronic thermostats, “Y2” will remain energized until the first stage cooling demand “Y1” is satisfied and then the “G”, “Y1” and “Y2” demands will be removed.
3.3 When the first stage cooling demand, “Y1”, is satisfied, the
room thermostat removes the 24Vac from “G” and “Y1”. The VSTB removes the 24Vac from “Y’ at the heat pump and the compressor and outdoor fan are turned off. The blower motor will ramp down to a complete stop based on the time and rate programmed in the motor.
4.0 Heating Operation
On heat pump units, when the room thermostat is 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 se­quence of 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 “Y1” and 24Vac is sup­plied to “G” and “Ylo/Y1” of the MBE/AEPF. The VSTB will turn on the blower motor and the motor will ramp up to 60% of the speed programmed in the motor based on the settings of dip switch 1 and 2. The VSTB will supply 24Vac to “Y” at the heat pump. The compressor will start on low stage and outdoor
fan will start on low speed on a “Y1” heating demand but the blower motor will deliver only 60% of the programmed cfm for high speed heating operation.
4.2 If a thermostat that provides a “Y2” demand in heating is used
and first stage heating cannot satisfy the demand, the room thermostat will energize “Y2” and supply 24Vac to “Y/Y2” of the MBE unit. The blower motor will change to the cfm for high speed heating operation and the VSTB will supply 24Vac to “Y/Y2” at the heat pump. The outdoor fan will change to high speed operation and compressor will shift to high stage. If the “Y2” demand is present and becomes satisfied, the thermostat will remove the “Y2” demand and the VSTB will remove the 24Vac from “Y/Y2” at the heat pump. The blower will drop to 60% of the programmed cfm and the outdoor fan will change to low speed. On most digital/electronic thermo­stats, “Y2” will remain energized until the first stage heating demand “Y1” is satisfied and then the “G”, “Y1” and “Y2” demands will be removed.
4.3 If the heat pump operation cannot satisfy the demand, the room thermostat energizes “W2/W3” and 24Vac is supplied to terminal “E/W1” of the VSTB inside the MBE/AEPF unit. The VSTB will supply 24Vac to heat sequencer HR1 on the electric heater assembly.
4.4 HR1 contacts M1 and M2 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, M3and M4, which will close and 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. For the
3rd and 4th heater elements to operate on a second stage auxiliary heat demand, the PJ4 jumper on the VSTB inside the MBE/AEPF must be cut. If the “W2/W3” demand cannot be satisfied by the
heat pump, the temperature indoors will continue to drop. The room thermostat will then energize “W3/W4” and 24Vac will be supplied to “W/W2” of the MBE. The VSTB will supply 24Vac to HR2 on the electric heater assembly. When the “W3/W4” demand is satisfied, the room thermostat will remove the 24Vac from “W/W2” of the MBE/AEPF. 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/W4”
will remain energized until the first stage demand “Y1” is satisfied and then the “G”, “Y1”, “Y2” “W2/W3” and “W3/W4” demands will be removed.
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4.5 As the temperature indoors increase, it will reach a point
where the “W2/W3” demand is satisfied. When this hap­pens, the room thermostat will remove the 24Vac from “E/ W1” of the MBE/AEPF. The contacts on HR1 will open between 30 to 70 seconds and turn off the 1 If the “Y2” demand is present and becomes satisfied the room thermostat will remove the 24Vac from “Y/Y2” of the MBE and the blower motor will change to 60% of the programmed cfm. The VSTB will remove the 24Vac from “Y/Y2” at the heat pump and the outdoor fan will change to low speed operation. The heat pump remains on along with the blower motor because the “Y1” demand for first stage heat will still be present.
4.6 When the first stage heat demand “Y1” is satisfied, the room thermostat will remove the 24Vac from “G” and “Ylo/Y1” of the MBE/AEPF. The VSTB removes the 24Vac from “Ylo/Y1” at the heat pump and the compressor and outdoor fan are turned off. The blower motor will ramp down to a complete stop based on the time and rate programmed in the motor control.
5.0 Defrost Operation
On heat pump units, when the room thermostat is 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.
5.1 The heat pump will be on and operating in the heating mode as described the Heating Operation in section 4.
5.2 The defrost control in the heat pump unit checks to see if a defrost is needed every 30, 60 or 90 minutes of heat pump operation depending on the selectable setting by monitoring the state of the defrost thermostat attached to the outdoor coil.
5.3 If the temperature of the outdoor coil is low enough to cause the defrost thermostat to be closed when the defrost board checks it, the board will initiate a defrost cycle.
5.4 When a defrost cycle is initiated, the contacts of theHVDR relay on the defrost board open and turns off the outdoor fan. The contacts of the LVDR relay on the defrost board closes and supplies 24Vac to “O” and “W2”. The reversing valve is energized and the contacts on HR1 close and turns on the electric heater(s). The unit will continue to run in this mode until the defrost cycle is completed.
a. For models with defrost control PCBDM133 or PCBDM160,
a 30 second compressor delay at defrost initiation/termi­nation is optional. As shipped from the factory, the control is set for the delay (“DLY”), which will turn the compressor off for 30 seconds while the reversing valve shifts to/from the cooling mode position. To bypass the delay, which typically reduces sound levels during defrost mode, change the pin settings from “DLY” to “NORM”.
5.5 When the temperature of the outdoor coil rises high enough to causes the defrost thermostat to open, the defrost cycle will be terminated. If at the end of the programmed 10 minute override time the defrost thermostat is still closed, the defrost board will automatically terminate the defrost cycle.
st
and 2nd heater elements.
S-50 CHECKING HEATER LIMIT CONTROL(S)
(OPTIONAL ELECTRIC HEATERS)
Each individual heater element is protected with an automatic rest limit control connected in series with each element to prevent overheating of components in case of low airflow. This limit control will open its circuit at approximately 150°F. to 160°F and close at approximately 110°F.
WARNING
Disconnect ALL power before servicing.
1. Remove the wiring from the control terminals.
2. Using an ohmmeter test for continuity across the normally closed contacts. No reading indicates the control is open ­replace if necessary. Make sure the limits are cool before testing.
IF FOUND OPEN - REPLACE - DO NOT WIRE AROUND.
S-52 CHECKING HEATER ELEMENTS
Optional electric heaters may be added, in the quantities shown in the spec sheet for each model unit, to provide electric resis­tance heating. Under no condition shall more heaters than the quantity shown be installed.
HIGH VOLTAGE! Discon nect ALL powe r be for e ser vici ng or installing. Multiple power sources may be present. Failure to do so may cause pr o perty dam age, pe rson al inju ry or death.
1. Disassemble and remove the heating element(s).
2. Visually inspect the heater assembly for any breaks in the wire or broken insulators.
3. Using an ohmmeter, test the element for continuity - no reading indicates the element is open. Replace as necessary.
S-60 ELECTRIC HEATER (OPTIONAL ITEM)
Optional electric heaters may be added, in the quantities shown in the specifications section, to provide electric resistance heat­ing. Under no condition shall more heaters than the quantity shown be installed.
The low voltage circuit in the air handler is factory wired and terminates at the location provided for the electric heater(s). A minimum of field wiring is required to complete the installation.
Other components such as a Heating/Cooling Thermostat and Outdoor Thermostats are available to complete the installation.
The system CFM can be determined by measuring the static pressure external to the unit. The installation manual supplied with the blower coil, or the blower performance table in the service manual, shows the CFM for the static measured.
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SERVICING
Alternately, the system CFM can be determined by operating the electric heaters and indoor blower WITHOUT having the com­pressor in operation. Measure the temperature rise as close to the blower inlet and outlet as possible.
If other than a 240V power supply is used, refer to the BTUH CAPACITY CORRECTION FACTOR chart below.
FORMULAS:
Heating Output = KW x 3413 x Corr. Factor Actual CFM = CFM (from table) x Corr. Factor BTUH = KW x 3413
BTUH CAPACITY CORRECTION FACTOR
SUPPLY VOLTAGE 250 230 220 208
MULTIPLICATION FACTOR 1.08 .92 .84 .75
EXAMPLE: Five (5) heaters provide 24.0 KW at the rated 240V. Our actual measured voltage is 220V, and our measured temperature rise is 42°F. Find the actual CFM:
Answer: 24.0KW, 42°F Rise, 240 V = 1800 CFM from the TEMPERA­TURE RISE chart on the right.
Heating output at 220 V = 24.0KW x 3.413 x .84 = 68.8 MBH. Actual CFM = 1800 x .84 Corr. Factor = 1400 CFM. NOTE: The temperature rise table is for sea level installations.
The temperature rise at a particular KW and CFM will be greater at high altitudes, while the external static pressure at a particular CFM will be less.
TEMP ERATURE RISE (°F) @ 240V
CFM
60016253851---­70014223343---­800 12 19 29 38 57 - - -
900 11 17 26 34 51 - - ­1000 10 15 23 30 46 - - ­1100 9 14 21 27 41 55 - ­1200 8 13 19 25 38 50 - ­1300 7 12 18 23 35 46 - ­1400 7 11 16 22 32 43 54 65 1500 6 10 15 20 30 40 50 60 1600 6 9 14 19 28 38 47 57 1700 6 9 14 18 27 36 44 53 1800 5 8 13 17 25 34 42 50 1900 5 8 12 16 24 32 40 48 2000 5 8 12 15 23 30 38 45 2100 5 7 11 14 22 29 36 43 2200 4 7 11 14 21 27 34 41 2300 4 7 10 13 20 26 33 39
3.0 kW4.8 kW7.2 kW9.6 kW14.4 kW19.2 kW24.0 kW28.8 kW
BTUH = CFM x 1.08 x Temperature Rise (T) CFM = KW x 3413
1.08 x T
T = BTUH CFM x 1.08
S-61ACHECKING HEATER LIMIT CONTROL(S)
Each individual heater element is protected with a limit control device connected in series with each element to prevent overheat­ing of components in case of low airflow. This limit control will open its circuit at approximately 150°F.
HIGH VOLT AGE! 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 wiring from the control terminals.
2. Using an ohmmeter, test for continuity across the normally closed contacts. No reading indicates the control is open ­replace if necessary.
IF FOUND OPEN - REPLACE - DO NOT WIRE AROUND.
S-61BCHECKING HEATER FUSE LINK
(OPTIONAL ELECTRIC HEATERS)
Each individual heater element is protected with a one time fuse link which is connected in series with the element. The fuse link will open at approximately 333°.
WARNING
Disconnect ALL power before servicing.
ELECTRIC HEATER CAPACITY BTUH
HTRKW3.0KW4.7KW6.0KW7.0KW9.5KW14.2KW19.5KW21.0
KW
BTUH 10200 16200 20400 23800 32400 48600 66500 71600
100
1. Remove heater element assembly so as to expose fuse link.
2. Using an ohmmeter, test across the fuse link for continuity ­no reading indicates the link is open. Replace as necessary.
NOTE: The link is designed to open at approximately 333°F. DO NOT WIRE AROUND - determine reason for failure.
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