Goodman HKP-15C, HKP-05C, HKP-10C, HKP-20C Service Manual

Page 1
Service Instructions
*PH 13 & 14 P ACKAGE HEA T PUMPS
*PC 13 & 14 P ACKAGE COOLING
HORIZONTAL MODELS
WITH R-410A
©2008 - 2016 Goodman Company, L.P.
RS6300011r15
April 2016
1
Page 2
INDEX
IMPORT ANT INFORMA TION ......................................................................................................... 4 - 5
PRODUCT IDENTIFICA TION - *PC/*PH[13-14]**H41**............................................................... 6 - 8
ACCESSORIES................................................................................................................................... 9
PCCP101-103 ROOF CURB ........................................................................................................................................ 10
PCP101-103 DOWNFLOW PLENUM .......................................................................................................................... 10
PCEF101-103 ELBOW AND FLASHING KIT ................................................................................................................11
PCE101-103 ECONOMIZER ..........................................................................................................................................11
PCMD101-103 DOWNFLOW MANUAL DAMPER ....................................................................................................... 12
GPHMD101-103 HORIZONT AL MOTORIZED DAMPER WITH DUCT FLANGE........................................................... 12
SQRPC SQUARE TO ROUND CONVERTER............................................................................................................... 13
SQRPCH SQUARE TO ROUND CONVERTER ............................................................................................................ 13
PCFR101-103 EXTERNAL FIL TER KIT ....................................................................................................................... 14
PRODUCT DESIGN .......................................................................................................................... 15
ELECTRICAL WIRING ................................................................................................................................................. 16
LINE VOL T AGE WIRING.............................................................................................................................................. 17
SYSTEM OPERATION ...................................................................................................................... 18
*PC/*PH[13-14]**H41**
COOLING.................................................................................................................................................................... 18
COOLING CYCLE........................................................................................................................................................ 18
HEA TING CYCLE......................................................................................................................................................... 18
DEFROST CYCLE ....................................................................................................................................................... 19
FAN OPERA TION ........................................................................................................................................................ 19
SCHEDULED MAINTENANCE ......................................................................................................... 22
ONCE A MONTH ......................................................................................................................................................... 22
ONCE A YEAR............................................................................................................................................................. 22
TEST EQUIPMENT...................................................................................................................................................... 22
SERVICING ....................................................................................................................................... 23
COOLING/HEA T PUMP- SERVICE ANALYSIS GUIDE ................................................................................................ 23
S-1 CHECKING VOL TAGE ........................................................................................................................................... 24
S-2 CHECKING WIRING .............................................................................................................................................. 24
S-3 CHECKING THERMOSTAT , WIRING , AND ANTICIP A TOR.................................................................................... 24
S-3A Thermostat and Wiring ..................................................................................................................................... 24
S-3B Cooling Anticipator ........................................................................................................................................... 25
S-3C Heating Anticipator ........................................................................................................................................... 25
S-4 CHECKING TRANSFORMER AND CONTROL CIRCUIT ....................................................................................... 25
S-7 CHECKING CONT ACTOR AND/OR RELA YS........................................................................................................ 25
S-8 CHECKING CONT ACTOR CONTACTS.................................................................................................................. 26
S-9 CHECKING FAN RELA Y CONT ACTS..................................................................................................................... 26
S-11 CHECKING LOSS OF CHARGE PROTECT OR ................................................................................................... 27
S-15 CHECKING CAP ACITOR ..................................................................................................................................... 27
S-15A RESIST ANCE CHECK ....................................................................................................................................... 28
S-15B CAP ACITANCE CHECK ..................................................................................................................................... 28
S-16 CHECKING MOTORS .......................................................................................................................................... 29
S-16A CHECKING F AN AND BLOWER MOTOR WINDINGS (PSC MOT ORS) ............................................................ 29
S-16D CHECKING EEM MOTORS ............................................................................................................................... 29
S-17 CHECKING COMPRESSOR WINDINGS ............................................................................................................. 30
S-17A RESIST ANCE TEST .......................................................................................................................................... 30
S-17B GROUND TEST ................................................................................................................................................. 30
2
Page 3
INDEX
S-17D Operation T est ................................................................................................................................................. 31
S-18 TESTING CRANKCASE HEA TER ........................................................................................................................ 31
S-18A CHECKING CRANKCASE HEA TER THERMOST AT........................................................................................... 31
S-21 CHECKING REVERSING V AL VE AND SOLENOID .............................................................................................. 31
S-24 TESTING DEFROST CONTROL .......................................................................................................................... 32
S-25 TESTING DEFROST THERMOSTA T.................................................................................................................... 32
S-50 CHECKING HEA TER LIMIT CONTROL(S) ........................................................................................................... 32
S-52 CHECKING HEA TER ELEMENTS ........................................................................................................................ 32
S-100 REFRIGERA TION REPAIR PRACTICE............................................................................................................... 33
S-101 LEAK TESTING ................................................................................................................................................. 33
S-102 EV ACUATION..................................................................................................................................................... 33
S-103 CHARGING ........................................................................................................................................................ 34
S-104 CHECKING COMPRESSOR EFFICIENCY ......................................................................................................... 35
S-108 SUPERHEA T ...................................................................................................................................................... 35
S-109 CHECKING SUBCOOLING ................................................................................................................................36
S-11 1 FIXED ORIFICE RESTRICTION DEVICES ......................................................................................................... 36
S-112 CHECKING RESTRICTED LIQUID LINE ............................................................................................................ 37
S-113 REFRIGERANT OVERCHARGE ......................................................................................................................... 37
S-114 NON-CONDENSABLES...................................................................................................................................... 37
S-115 COMPRESSOR BURNOUT................................................................................................................................40
S-122 REVERSING V ALVE REPLACEMENT................................................................................................................ 40
S-200 CHECKING EXTERNAL ST ATIC PRESSURE .................................................................................................... 41
S-201 CHECKING TEMPERA TURE RISE ..................................................................................................................... 41
WIRING DIAGRAMS.......................................................................................................................... 42
OT18-60A OUTDOOR THERMOST A T ......................................................................................................................... 42
OT18-60A OUTDOOR THERMOST A T ......................................................................................................................... 43
SINGLE PHASE HKR** HEAT KITS ............................................................................................................................ 44
PCE* ECONOMIZER .................................................................................................................................................... 45
SPK* - SINGLE POINT WIRING KIT .......................................................................................................................... 46
UNIT WIRING DIAGRAM ............................................................................................................................................ 47
3
Page 4
IMPORTANT INFORMATION
®
Pride and workmanship go into every product to provide our customers with quality products. It is possible, however, that during its lifetime a product may require service. Products should be serviced only by a qualified service technician who is familiar with the safety procedures required in the repair and who is equipped with the proper tools, parts, testing instruments and the appropriate service manual. REVIEW ALL SERVICE INFORMATION IN THE APPROPRIATE
SERVICE MANUAL BEFORE BEGINNING REPAIRS.
IMPORTANT NOTICES FOR CONSUMERS AND SERVICERS
RECOGNIZE SAFETY SYMBOLS, WORDS AND LABELS
WARNING
THIS UNIT SHOULD NOT BE CONNECTED TO. OR USED I N CONJUNCTI ON WITH, ANY DEVI CES THAT ARE NOT DESIGN CERTIFI ED FOR USE WI TH THIS UNIT OR HAVE NOT BE EN
TESTED AND APPROVED BY FROM THE USE OF DEVICES THAT HAVE NOT BEEN APPROVED OR CERTIF ED BY
O
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
ADDITION, IN JURISDICTIONS THAT REQUIRE ONE OR MORE 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
.
OODMAN. SERIOUS PROPERTY DAMAGE OR PERSONAL INJURY, REDUCED UNIT PERFORMANCE AND/OR HAZARDOUS CONDITI ONS MAY RESULT
G
OODMA N .
G
WARNING
T
, “
SERVICE
”)
THE EQUIPMENT SPECIFIED IN THIS
. THE
MANUFACTURER WILL NOT
. IF
YOU SERVICE THIS UNIT, YOU
. I
MPROPER
O PREVENT THE RISK OF PROPERTY DAMAGE, PERSONAL INJURY, OR DEATH, DO NOT STORE COMBUSTIBLE MATERIALS OR USE GASOLINE OR OTHER FLAMMABLE LIQUIDS OR VAPORS IN THE VICINITY OF THIS APPLIANCE.
To locate an authorized servicer, please consult your telephone book or the dealer from whom you purchased this product. For further assistance, please contact:
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.)
Outside the U.S., call 1-713-861-2500.
(Not a technical assistance line for dealers.) Your telephone company will bill you for the call.
®
is a registered trademark of Maytag Corporation or its related companies and is used under license. All rights reserved.
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.)
4
Page 5
IMPORTANT INFORMATION
SAFE REFRIGERANT HANDLING
While these items will not cover every conceivable situation, they should serve as a useful guide.
WARNING
EFRIGERANTS ARE HEAVIER THAN AIR. THEY CAN "P USH OUT" THE
R
OXYGEN IN YOUR LUNGS OR IN ANY ENCLOSED SPAC E. POSSIBL E DI FFI CULTY IN BR EAT HING O R DEA TH:
EVER PU RGE RE FRIG ERA NT INT O AN E NCLOS ED R OOM OR SPACE . BY
N
LAW, ALL REFRIGERANTS MUST BE RECLAIMED.
F AN INDOOR LEAK IS SUSPECTED, THOROUGHLY VENTILATE THE AREA
I
BEFORE BEGINNING WORK.
IQUI D REFRIGE RANT CAN BE VERY COLD . TO AVOID POSSIBLE FROST-
L
BITE OR BLINDNESS, AVOID CONTACT WITH REFRIGERANT AND WEAR GLOVES AND GOGGLES. SKI N OR E YES, S EEK M EDI CA L HELP IMME DI AT ELY .
ALWAYS FOLLOW EPA REGULATI ONS. NEVER BUR N REFRIGERANT,
AS POISON OUS GAS WI LL BE PRODUC ED.
F LIQUID REFRIGERANT DOES CONTACT YOUR
I
O AVO ID
T
WARNING
TO AVOID POSSIBLE EXPLOSION:
• NEVER APPLY FLAME OR S TEAM TO A REFRIGERANT CYL INDER. IF YOU MUST HEAT A CYLINDE R FOR FASTER CHARGING , PARTIALLY IMMERSE IT IN WARM WATER.
NE VER FILL A CYLINDER MO RE THAN 80% FULL OF LIQUID R EFRIGERANT.
NE VER ADD ANYTHING O THER THAN R-22 TO AN R-22 CYLINDER OR R-410A TO AN R-410A CYLINDER. THE SERVICE EQUIPMENT USED MUST BE LISTED OR CERTIF IED FOR THE TYPE OF REFRIGE RANT USED.
• STORE CYLINDERS IN A CO OL, DRY PLACE. NEVER USE A CYLIND ER AS A PLATFORM OR A ROLLER.
WARNING
O AVOI D P O SSIBL E E XP LOSI ON, US E ONLY R ETURN AB LE ( NOT DISPO SABL E)
T
SERVICE CYLINDERS WHEN REMOVING REFRIGERANT FROM A SYSTEM.
NSURE T HE CYL INDER I S FREE O F DAMA GE WHIC H COULD LEAD TO A
E
LEAK OR EXPLOSION.
NSURE T HE HYDR OSTATI C TEST DATE DO ES NOT E XCEE D 5 YEARS .
E
NSURE THE PRESSURE RATING MEETS OR EXCEEDS 400 LBS.
E
HEN I N DOUB T, DO NOT U SE CYLI ND ER.
W
WARNING
WARNING
YSTEM CONTAMINANT S, IMPROPER SERVICE PROCEDU RE AND/OR PHYSICAL
S
ABUSE AFFECTING HE RMETIC COMPRESSOR ELECTRICAL TERMINALS MAY CAUSE DANGEROUS SYSTEM VENTING.
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.
T
O 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.
5
Page 6
PRODUCT IDENTIFICATION
The model number is used for positive identification of component parts used in manufacturing. Please use this number when requesting service or parts information.
G/A P C 13 24 H 4 1 * *
BRAND:
G: Good m an
Brand
A: Aman a
Brand
®
Cooling/Heating
®
PRODUCT
TYPE:
Packag e
13: 13 SEER 14: 14 SEER
PRODUCT
FAMILY:
C: Cool i ng H: Heat Pu m p
PRODUCT
SERIES:
Rating Rating
24: 24, 000 BTUH 30: 30, 000 BTUH 36: 36, 000 BTUH 42: 42, 000 BTUH 48: 48, 000 BTUH 49: 48, 000 BTUH 60: 60, 000 BTUH
CONFIGURATION:
NOMINAL
CAPACITY:
MINOR
REVISION:
H: Hor i zont a l
MAJOR
REVISION:
REFRIGERANT:
4: R-41 0A
VOLTAGE:
1: 208-230V/ 1p h/ 60Hz 3: 208-230v/ 3ph/60Hz 4: 460v/3ph/60Hz
6
Page 7
PRODUCT IDENTIFICATION
MODEL # PACKAGE COOLING DESCRIP TION
GPC1324-42H41AA
GPC1348-60H41BA GPC1324-42H41AB
GPC1349H41AA
GPC1360H41BB
GPC1324-49H41BA
GPC1360H41CA
GPC1324-42H41AC
GPC1349H41AB GPC1360H41BC
GPC1424-48H41AA
GPC1424-48H41AB
GPC1424-48H41BA
GPC1460H41BA
GPC1424-48H41AC
GPC1460H41AB
GPC1324H41CA GPC1424H41CA
GPC1330-49H41CA
GPC1360H41DA
GPC1430-60H41CA
oodman® Brand or Distinctions Package Cooling - 13 Seer 208-230/1/ 60 S ingle-
G
Phase Elect r ic Cooling Unit wit h R- 410A
oodman
G
®
Brand or Distinctions
ackage Cooling - 13 Seer 208-230/1/ 60 S ingle-
P
Phase Elect r ic Cooling Unit wit h R- 410A. Models wit h 5 mm c ondenser coils.
oodman
G
®
Brand or Distinctions
ackage Cooling - 13 Seer 208-230/1/ 60 S ingle-
P
Phase Elect r ic Cooling Unit wit h R- 410A. Models wit h aluminum evaporator c oils.
oodman
G
®
Brand or Distinctions
ackage Cooling - 13 Seer 208-230/1/ 60 S ingle-
P
Phase Elect r ic Cooling Unit wit h R- 410A. Adds " T" to liquid line and re-locat es the pressure switc h on "H" series cooling models.
oodman® Brand or Distinctions Package Cooling - 14 Seer 208-230/1/ 60 S ingle-
G
Phase Elect r ic Cooling Unit wit h R- 410A.
oodman® Brand or Distinctions Package Cooling - 14 Seer 208-230/1/ 60 S ingle-
G
Phase Elect r ic Cooling Unit wit h R- 410A. Models wit h 5 mm c ondenser coils.
oodman® Brand or Distinctions Package Cooling - 14 Seer 208-230/1/ 60 S ingle-
G
Phase Elect r ic Cooling Unit wit h R- 410A. Models wit h aluminum evaporator c oils.
oodman® Brand or Distinctions Package Cooling - 14 Seer 208-230/1/ 60 S ingle-
G
Phase Elect r ic Cooling Unit wit h R- 410A. Models wit h 5 mm c ondenser coils and aluminum evaporator c oils.
oodman
G
®
Brand or Distinctions
ackage Cooling - 14 Seer 208-230/1/ 60 S ingle-
P
Phase Elect r ic Cooling Unit wit h R- 410A. Adds " T" to liquid line and re-locat es the pressure switc h on "H" series cooling models.
oodman
G
®
Brand or Distinctions
ackage Cooling - 13 & 14 Seer 208- 230/1/60
P
Single-Phase Elect r ic Cooling Uni t with R-410A. Two ton models with a R ec hi compressor.
oodman
G
®
Brand or Distinctions
ackage Cooling - 13 & 14 Seer 208- 230/1/60
P
Single-Phase Elect r ic Cooling Uni t with R- 410A. Models wit h B road Oc ean Digi motor.
APC1324-49H41CA
APC1360H41DA
APC1424-30H41EB
APC1436H41DC
APC1442-60H41EB
GPC1424-30H41EB
GPC1436H41DC
GPC1442-60H41EB
APC1424-30H41EC
APC1436H41DD
APC1442-60H41EC
GPC1424-30H41EC
GPC1436H41DD
GPC1442-60H41EC
mana® Brand or Distinctions Package Cooling - 13 Seer 208-230/1/ 60 S ingle-
A
Phase Elect ric Cooling U nit wit h R-410A. N ew models will fill gaps curr ently in product line.
mana® Brand or Distinctions Package Cooling - 14 Seer 208-230/1/ 60 S ingle-
A
Phase Elect r ic Cooling Unit wit h R- 410A. Converted Aluminum coils with 3/8" r eturn bends/cr ossovers to Aluminum coils using 9mm return bends/crossovers.
oodman® Brand or Distinctions Package Cooling - 14 Seer 208-230/1/ 60 S ingle-
G
Phase Elect r ic Cooling Unit wit h R- 410A. Converted Aluminum coils with 3/8" r eturn bends/cr ossovers to Aluminum coils using 9mm return bends/crossovers.
mana® Brand or Distinctions Package Cooling - 14 Seer 208-230/1/ 60 S ingle-
A
Phase Elect r ic Cooling Unit wit h R- 410A. Release of models with access box removed.
oodman® Brand or Distinctions Package Cooling - 14 Seer 208-230/1/ 60 S ingle-
G
Phase Elect r ic Cooling Unit wit h R- 410A. Release of models with access box removed.
7
Page 8
PRODUCT IDENTIFICATION
MODEL # PACKAGE HEAT PUMP DESCRIPTION
GPH1324-42H41AA
GPH1348-60H41BA
GPH1324,30,42H41AB
GPH1336H41AC GPH1348-60H41BB GPH1424-60H41AB
GPH1424-60H41AA
GPH1324-42H41AC
GPH1348-60H41BC
GPH1424-60H41AC
GPH1324-42H41BA
GPH1348-60H41CA
GPH1424-60H41BA
GPH1324-42H41CA
GPH1348H41DA
GPH1424-60H41CA
APH1424-36H41DC
APH1442-60H41EB
®
oodman
G
Phase Heat Pu mp with R- 410A.
oodman
G
Single-P hase Heat P ump with R- 410A. Models are cha nging to the PCBDM133 defr ost c ontrol and with t he addit i on of t he cr ank c ase heat ers where nec essary .
oodman® Br and or Distinc tions Package Heat Pump - 14 S eer 208-23 0/ 1/60 Single-
G
Phase Heat Pu mp with R- 410A.
oodman® Br and or Distinc tions Package Heat Pump - 13/14 Seer 208-230/ 1/60
G
Single-Phase Heat Pump with R-410A. Adds "T " to liquid line and re-lo cat es t he pressure swit ch on "H" series heat pumps.
oodman® Br and or Distinc tions Package Heat Pump - 13/14 Seer 208-230/1/60
G
Single-P hase Heat P ump with R- 410A. Models wit h Aluminum Evaporator C oils.
oodman® Br and or Distinc tions Package Heat Pump - 13/14 Seer 208-230/ 1/60
G
Single-Phase Heat Pump with R-410A. Models with Broad Ocean Digi motor.
mana® Bran d or Distinc tions Package Heat P ump - 14 seer 208-230/ 1 / 60 Singl e-
A
Phase Heat Pu mp with R- 410A. Converted Aluminum coils with 3/ 8 " return bends/cr ossover s to Aluminum coils using 9mm return bends/crossover s.
Br and or Distinc tions
®
Br and or Distinc tions
ackage Heat Pump - 13 S eer 208-23 0/ 1/60 Single-
P
ackage Heat Pump - 13 & 14 Seer 208- 230/1/60
P
GPH1424-36H41DC GPH1442-60H41EB
APH1424-36H41DD
APH1442-60H41EC
GPH1424-36H41DD GPH1442-60H41EC
APH1460H41FA
GPH1460H41FA
oodman® Br and or Distinc t ions Package Heat Pump - 14 Seer 208-230/1/60 Sing le-
G
Phase Heat Pu mp with R- 410A. Aluminum coils with 3/ 8" re t ur n bends/c r ossov er s to A lu minum coils using 9mm retu rn bends/ c rossov er s.
mana® Bran d or Distinc tions Package Heat P ump - 14 seer 208-230/ 1 / 60 Singl e-
A
Phase Heat Pump with R-410A. Release of models with a ccess box removed.
oodman® Br and or Distinc t ions Package Heat Pump - 14 Seer 208-230/1/60 Sing le-
G
Phase Heat Pump with R-410A. Release of models with a ccess box removed.
mana® Bran d or Distinc tions Package Heat P ump - 14 seer 208-230/ 1 / 60 Singl e-
A
Phase Heat Pu mp with R- 410A. - Develop and release 14 SEER 5 Ton H model heat pump with new 7 mm con denser coil.
oodman® Br and or Distinc t ions Package Heat Pump - 14 Seer 208-230/1/60 Sing le-
G
Phase Heat Pu mp with R- 410A. - Develop and release 14 SEER 5 Ton H model heat pump with new 7 mm con denser coil.
8
Page 9
ACCESSORIES
Par t Number D e scr iptio n
OT18-60A OT/HER-60A Out door Thermostat with Emergency Heat Relay
HKR05A, 08, 10, CA Heater K it for all *PC/*PH (H) Series HKP15* Heater kit for *PC/*PH13/14 (30-60) (H) Series HKP20* Heater Kit for *PC/*PH13/14 (42-60) (H) Series PCCP101-103 Roof Curb PCP101- 1 03 D ownflow Plenum Ki t PCP101-103R8 Downflow Plenum Kit w/ R-8 Insulation G P C E D 10 1-103 Dow n flow Eco nomizer for H Ser ies Package Unit s (A/C) - To Be Used Wit h PCP101-103 G P H E D 10 1-103 Dow n flow Eco nomizer for H Ser ies Package Unit s (He at Pump) - To B e U sed With PCP101-103 G P C E H 10 1 - 1 03 H orizo ntal Economizer for H Series Pac kage U n its (A/C) G P H E H 10 1 - 1 03 H orizo ntal Economizer for H Series Pac kage U n its (He at Pump) PCMD101-103 Manual Damper - To Be Used With PCP101-103 PCMDM 101-103 Motorized Damper - To Be Used With PCP101-103 GPHMD101-103 Manual Damper for Horizontal Applications SPK* Single Point Wiring Kit SQRPC H1 01 Squ are to Round Adapters 16"&14" SQRPC H1 02-103 Squ are to Round Adapters 18"&14" SQRPC101 Square to Round Adapter - For Use Wit h PCCP101-103 Curb 16" Rounds SQRPC102-103 Square to Round A dapter F o r Use With PCCP101-103 Curb 18" Rounds PCFR101-103 External Horizont al F ilter Rack PCEF101- 10 3 Elbow & Flashing w/ R-8 Line r CDK36 Flush Mount Concentric Duct Kit CDK36515 Flush Mount Concentric Duct Kit w/ Filter CDK36530 Step Down Concentric Duct Kit CDK36535 Step Down Concentric Duct Kit w/ Filter CDK4872 Flush Mount Concentric Duct Kit CDK4872515 F lu sh Mount C oncentric Duc t Kit w / Filt er CDK4872530 Step Down Concent ric Duct Kit CDK4872535 Step Down Concent ric Duct Kit w/ F ilter
*PC/*PH[13-14]**H41*
A CCESSO RI ES * PC/ * PH H SERIES
O utdoor T he rmostat (R eq uired for heat pumps with 0° outdoor ambient and 50% or higher r ela tive h umidi ty.
GOODMAN® BRAND THERMOST ATS
CH70TG Manual Changeover
CHSATG Manual Changeover
CHT18-60 Manual Changeover
CHT90-120 Manual Changeover Mechanical, Nonprogrammable 2 Heat - 2 Cool
CHTP18-60HD Manual Changeover Digital, Nonprogrammable 2 Heat - 1 Cool
CT18-60 Manual Changeover
Digital, Nonprogr ammable 1 Heat - 1 Cool Mechanical, Nonprogrammable 1 Heat - 1 Cool Mechanical, Nonprogrammable 1 Heat - 1 Cool
Mechanical, Nonprogrammable Cool Only
AMANA® BRAND THERMOSTATS
1213401 Wh i t e Manual Cha ngeover 1213402 Wh i t e Manual Cha ngeover 1213403 Wh i te Manual Cha ngeover 7 Day Programm i ng Digital 2 Heat - 1 Cool 1213404 Wh i t e Manual Cha ngeover 1213406 1213407 1213408 1213410 1213411 1213412 1213431
Beige White
White White White White
White
Manual/Auto Changeover 5 + 2 Program ming Digital 3 Heat - 2 Cool
Manual Cha ngeover
Manual/Aut o Changeover
Manual Cha ngeover 5 + 2 Programming Digital 2 Hea t - 1 Cool
Manual Cha ngeover Manual/Aut o Changeover 7 Day Programmin g Di gi tal 3 Heat - 2 Cool Manual/Aut o Changeover
5 + 2 Program m i ng Digital 1 Heat - 1 Cool
Nonprog rammable Digital 1 Heat - 1 Cool
Nonprog rammable Digital 2 Heat - 1 Cool
5 + 2 Program m i ng Digital 2 Heat - 2 Cool
7 Day Program m i ng Digital 1 Heat - 1 Cool
Nonprog rammable Digital 2 Heat - 2 Cool
7 Day Program m i ng Digital 3 Heat - 2 Cool
9
Page 10
ACCESSORIES
33"
*PC/*PH[13-14]H41*
PCCP101-103 ROOF CURB
64"
59"
29 3/8"
29 3/4"
33"
28 3/4"
31"
26"
PCP101-103 DOWNFLOW PLENUM
(Use with PCCP Roof Curb)
14"
1" Flange
Roof Curb
10
37"
13"
25 1/2"
33"
13"
Page 11
ACCESSORIES
*PC/*PH[13-14]H41*
PCEF101-103 ELBOW AND FLASHING KIT
28"
35"
25"
33"
3"
4"
20 3/8"
17 3/4"
4"
25"
8"
PCE*101-103 ECONOMIZER*
(DOWNFLOW APPLICATIONS)
5"
27 3/4"
16 1/2"
17 3/4"
20" x 17 1/2"
Filter
3"
31 1/4"
Model Used With
PCEC101-103* *PC HORIZONTAL A/ C PCEH101-103* *PH HORIZONTAL HP
*Must be used with PCP101-103
11
Page 12
ACCESSORIES
PCMDM101-103 DOWNFLOW MOTORIZED DAMPER*
2
1
PCMD101-103 DOWNFLOW MANUAL DAMPER*
*USED WITH PCP101-103 DOWNFLOW PLENUM
"
8
/
1
*PC/*PH[13-14]H41*
6"
10"
29 3/4"
MODEL DESCRIPTION
PCMDH101-103 Manual Damper
PCMDM101-1 03 Mo to r zied Damper
GPHMD101-103 HORIZONTAL MANUAL DAMPER WITH DUCT FLANGE
18"
8
1
/
4
"
18"
12
12"
6"
2"
17"
25 1/4"
17 1/4"
Page 13
ACCESSORIES
"
A
*PC/*PH[13-14]H41*
SQRPC SQUARE TO ROUND CONVERTER
(DOWNFLOW APPLICATIONS)
1" FLANGES
1 1/2
SA
RA
OUTER FLANGE
29 1/2"
29 1/4"
SA 16" 18" RA 16" 18"
SQRPCH SQUARE TO ROUND CONVERTER
(HORIZONTAL APPLICATIONS)
SQUARE TO ROUND DUCT CONVERTER PANEL
BEAD
A
SQRPC101 SQRP102-103
C
2"
RETURN
2"
SUPPLY
B
STARTER FLANGE
SQRPCH-101 SQRPCH-102 SQRPCH-103 SQRPCH102-14 SQRPCH103-14
15" 17" 17" 15" 15"
B C 17" 17" 19" 15" 15" D
SUPPLY 14" 16" 16" 14" 14" RETURN
15" 17" 17" 15" 15"
22 1/2" 24 1/2" 24 1/2" 24 1/2" 24 1/2"
16" 16" 18" 14" 14"
D
13
Page 14
ACCESSORIES
*PC/*PH[13-14]H41*
PCFR101-103 EXTERNAL FILTER KIT
(HORIZONTAL APPLICATIONS)
14" x 25" x 2" FILTER
14
Page 15
PRODUCT DESIGN
LOCATION & CLEARANCES
NOTE: To ensure proper condensate drainage, unit must be in­stalled in a level position.
In installations where the unit is installed above ground level and not serviceable from the ground (Example: Roof Top installations) the installer must provide a service platform for the service person with rails or guards in accordance with local codes or ordinances.
48” MI N .
10"
36"
36"
*PC/*PH[13-14]**H41*
WALL
UNIT
36"
NOTE: Roof overhang should be no more than 36" and provisions made to deflect the warm discharge air out from the overhang.
Minimum clearances are required to avoid air recirculation and keep the unit operating at peak efficiency.
WARNING
TO PREVENT POSSIBL E DAMAGE, THE UNIT SHOULD REMAIN IN AN UPRIGHT POSITION DURING AL L RIGGING AND MOVING OPERATIONS. TO FACILITA TE LIFTING AND MOVING IF A CRANE IS USED, PLACE THE UNIT IN AN ADEQUATE CABLE SLIDE.
Refer to Roof curb Installation Instructions for proper curb in­stallation. Curbing must be installed in compliance with the National Roofing Contractors Association Manual.
Lower unit carefully onto roof mounting curb. While rigging unit, center of gravity will cause condenser end to be lower than supply air end.
Roof Curb and Platform
*PC/*PH[13-14]**H41*
*PC/*PH Package Units are designed for outdoor installations only in either residential or light commercial applications.
NOTE: To ensure proper condensate drainage, unit must be in­stalled in a level position.
The connecting ductwork (Supply and Return) can be connected for horizontal discharge airflow. In the down discharge applica­tions, a matching Platform/Roof Curb (PCCP101-103) and Downflow Plenum (PCP101-103) is recommended for horizon­tal models only.
A return air filter must be installed behind the return air grille(s) or provision must be made for a filter in an accessible location within the return air duct. The minimum filter area should not be less than those sizes listed in the Specification Section. Under no circumstances should the unit be operated without return air filters.
A 3/4" - 14 NPT drain connector is provided for removal of con­densate water from the indoor coil. In order to provide proper condensate flow, do not reduce the drain line size.
Refrigerant flow control is achieved by use of restrictor orifices. These models use the FasTest Access Fitting System, with a saddle that is either soldered to the suction and liquid lines or is fastened with a locking nut to the access fitting box (core) and then screwed into the saddle. Do not remove the core
from the saddle until the refrigerant charge has been removed. Failure to do so could result in property dam­age or personal injury.
The single phase units use permanent split capacitors (PSC) design compressors. Starting components are therefore not required. A low MFD run capacitor assists the compressor to start and remains in the circuit during operation.
The outdoor fan motor and the indoor blower motor are single phase capacitor type motors, except the 5 ton models which use a EEM indoor blower motor.
15
Page 16
PRODUCT DESIGN
Air for condensing (cooling) is drawn through the outdoor coil by a propeller fan, and is discharged vertically out the top of the unit. The outdoor coil is designed for .0 static. No addi­tional restriction (ductwork) shall be applied.
Conditioned air is drawn through the filter(s), field installed, across the evaporator coil and back into the conditioned space by the indoor blower.
COMPRESSORS
Some H series package units use the Compliant Scroll com­pressor, instead of traditional reciprocating compressors. Still other models use reciprocating compressors.
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.
NOTE: Operating pressures and amp draws may differ from standard reciprocating compressors. This information can be found in the unit's Technical Information Manual.
INDOOR BLOWER MOTOR
Some *PC/*PH model package units use a EEM blower motor while others use the standard PSC type blower motor. The EEM motor is a 3 Phase brushless DC (single phase AC in­put), ball bearing construction motor with an integral control module with an internal FCC B EMI filter.
The EEM motor is continuously powered with line voltage. The switched 24 volt control signal is controlled by the thermostat in the cooling and heat pump mode and the blower relay in the electric heat mode.
ELECTRICAL WIRING
The units are designed for operation at the voltages and hertz as shown on the rating plate. All internal wiring is complete. Ensure the power supply to the compressor contactor is brought to the unit as shown on the supplied unit wiring diagram. The 24V wiring must be connected between the unit control panel and the room thermostat.
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.
These scroll compressors use POE or polyolester oil which is NOT compatiable 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.
WARNING
TO AVOID PERSO NAL INJ UR Y OR DEA T H DUE TO ELECTRI C SHOC K, WIRING TO T HE UN IT MUST BE PROPERLY POLA RIZ ED AN D GROUNDED.
WARNING
16
Page 17
PRODUCT DESIGN
WARNING
TO AVOID THE RISK OF PROPERTY DAMAGE, PERSONAL INJURY OR FIRE, USE ONLY COPPER CONDUCTORS.
LINE VOLTAGE WIRING
Power supply to the unit must be N.E.C. Class 1, and must comply with all applicable codes. The unit must be electrically grounded in accordance with the local codes or, in their ab­sence, with the latest edition of the National Electrical Code, ANSI/NFPA No. 70, or in Canada, Canadian Electrical Code, C22.1, Part 1. A fused disconnected must be provided and sized in accordance with the unit minimum circuit ampacity.
The best protection for the wiring is the smallest fuse or breaker which will hold the equipment on line during normal operation without nuisance trips. Such a device will provide maximum circuit protection.
WARNING
DO NOT EXCEED THE MAXIMUM OVERCURRENT DEVICE SIZE SHOWN ON THE UNIT DATA PLATE.
All line voltage connections must be made through weather proof fittings. All exterior power supply and ground wiring must be in approved weather proof conduit. Low voltage wiring from the unit control panel to the thermostat requires coded cable.
The unit transformer is connected for 230V operation. If the unit is to operate on 208V, reconnect the transformer primary lead as shown on the unit wiring diagram.
If it is necessary for the installer to supply additional line volt­age wiring to the inside of the package unit, the wiring must comply with all local codes. This wiring must have a minimum temperature rating of 105°C. All line voltage splices must be made inside the unit or heat kit control box.
17
Page 18
SYSTEM OPERATION
SYSTEM OPERATION *PC/*PH[13-14]**H41*
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.
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.
COOLING CYCLE
Cooling Only Models
When the contacts of the room thermostat close, making terminals R to Y and R to G, the low voltage circuit to the contactor is completed starting the compressor and outdoor fan motor. This also energizes the indoor blower through the normally open contacts of the EBTDR on models equipped with PSC type blower motors, and through the blower relay on models equipped with EEM blower motors.
When the thermostat is satisfied, breaking the circuit be­tween R to Y and R to G, the compressor and outdoor fan motor will stop. The indoor blower will stop after the fan off delay.
If the room thermostat fan selector switch should be set to the "on" position then the indoor blower would run continu­ous rather than cycling with the compressor.
Heat Pump Models
Any time the room thermostat is switched to cool, the O terminal is energized. This energizes the 24 volt coil on the reversing valve and switches it to the cooling position.
When the contacts of the room thermostat close, this closes the circuit from R to Y and R to G in the unit.
This energizes the compressor contactor and will energize the indoor blower following the EBTDR 7 second fan on delay on models equipped with PSC type blower motors, and in­stantly on models equipped with EEM blower motors with the EEM motor.
When the thermostat is satisfied, it opens its contacts break­ing the low voltage circuit causing the compressor contactor to open and indoor fan to stop after the EBTDR 65 second delay on models equipped with PSC type blower motors, and after the programmed 60 second off delay on models equipped with EEM blower motors with the EEM motor.
If the room thermostat fan selector switch should be set to the "on" position then the indoor blower would run continu­ous rather than cycling with the compressor.
HEATING CYCLE
Cooling Only Units
NOTE: The following only applies if the cooling only unit has an approved electric heat kit installed for heating. If auxiliary electric heaters should be used, they may be controlled by outdoor thermostats (OT18-60A or OT/EHR18-60A).
*PC Models with PSC Type Blower Motors
With the thermostat set to the heat position and a call for heat, R to W will be energized. This will energize the electric heat sequencers. When the normally open contacts of the heat sequencers close, this will energize the electric resis­tance heat and also the 240 volt coil on the isolation relay in the control panel. The normally open contacts of the isola­tion relay will close energizing the indoor blower motor through the normally closed contacts of the EBTDR.
When the thermostat is satisfied, this breaks the circuit from R to W. This will turn off the electric heaters, and the indoor blower after the programmed 60 second off delay on 5 ton units with the EEM motor.
*PC Models Equipped with EEM Blower Motors
With the thermostat set to the heat position and a call for heat, R to W will be energized. This will energize the electric heat sequencers and the EEM motor. The electric heat will be energized through the normally open contacts of the elec­tric heat sequencers. The indoor blower will be energized through W from the thermostat.
When the thermostat is satisfied, this breaks the circuit from R to W. This will turn off the electric heaters, and the indoor blower after the programmed 60 second off delay .
18
Page 19
SYSTEM OPERATION
Heat Pump Units
On a call for first stage heat, the contacts of the room ther­mostat close. This energizes terminals R to Y and R to G, the low voltage circuit to the contactor is completed starting the compressor and outdoor fan motor. This also energizes the indoor blower through the normally open contacts of the EBTDR after a 7 second on delay on models equipped with PSC type blower motors, and instantly on models equipped with EEM blower motors.
When the thermostat is satisfied, breaking the circuit be­tween R to Y and R to G, the compressor and outdoor fan motor will stop. The indoor blower will stop after the EBTDR 65 second off delay on models equipped with PSC type blower motors, and after the programmed 60 second off delay on models equipped with EEM blower motors .
When auxiliary electric heaters are used, a two stage heat­ing single stage cooling thermostat would be installed.
Should the second stage heating contacts in the room ther­mostat close, which would be wired to W1 at the unit low voltage connections, this would energize the coil(s) of the electric heat relay(s). Contacts within the relay(s) will close, bringing on the electric resistance heaters.
If auxiliary electric heaters should be used, they may be con­trolled by outdoor thermostats (OT18-60A or OT/EHR18-60A).
Emergency Heat Mode (Heat Pumps)
NOTE: The following only applies if the unit has an approved electric heat kit installed for auxiliary heating.
*PH Models Equipped with PSC Type Blower Motors
With the thermostat set to the emergency heat position and a call for 2nd stage heat, R to W1 will be energized. This will energize the electric heat sequencers. When the normally open contacts of the heat sequencers close, this will ener­gize the electric resistance heat and also the 240 volt coil on the isolation relay in the control panel. The normally open contacts of the isolation relay will close energizing the indoor blower motor through the normally closed contacts of the EBTDR.
*PH Models Equipped with EEM Blower Motors
With the thermostat set to the emergency heat position and a call for 2nd stage heat, R to W1 will be energized. This will energize the electric heat sequencers and the EEM motor. The electric heat will be energized through the normally open contacts of the electric heat sequencers. The indoor blower will be energized through W from the thermostat.
*PC/*PH[13-14]**H41*
DEFROST CYCLE
Package Heat Pumps
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 feeder tube entering the outdoor coil. Defrost timing periods of 30, 60, or 90 minutes may be selected by setting the circuit board jumper to 30, 60, or 90 respectively. Accumulation of time for the timing period selected starts when the sensor closes (approximately 32 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 60° 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 twelve minute override interrupts the unit’s defrost period.
FAN OPERATION
Continuous Fan Mode Models Equipped with PSC Type Blower Motors
If the thermostat calls for continuous fan, the indoor blower will be energized from the normally open contacts of the EBTDR after a 7 second delay.
Anytime there is a call for continuous fan, the indoor blower will be energized through the normally open contacts of the EBTDR, regardless of a call for heat or cool.
If the thermostat is not calling for heat or cool, and the fan switch on the thermostat is returned to the automatic posi­tion, the fan will stop after a 65 second delay.
Continuous Fan Mode Models Equipped With EEM Blower Motors
If the thermostat calls for continuous fan, the indoor blower will be energized from the G terminal of the thermostat to the EEM blower motor.
If a call for heat or cool occurs during a continuous fan call, the EEM motor will always recognize the call for the highest speed and ignore the lower speed call.
If the thermostat is not calling for heat or cool, and the fan switch on the thermostat is returned to the automatic posi­tion, the fan will stop after the programmed 60 second off delay on units with the EEM motor.
+ 2° F), and when the room thermostat
19
Page 20
SYSTEM OPERATION
Typical Package Cooling
Indoor
Coil
Restrictor Orifice Assembly in Cooling Operation
Outdoor
Coil
Chatleff
Orifice
Assy
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.
20
Page 21
SYSTEM OPERATION
Typical Heat Pump System in Cooling
Reve rs ing Valve
(Energized)
Indoor
Coil
Accumulator
Typical Heat Pump System in Heating
Outdoor
Coil
Indoor
Coil
Reve rs ing Valve
(De-E ner gized)
Outdoor
Coil
Accumulator
21
Page 22
SCHEDULED MAINTENANCE
The owner should be made aware of the fact, that, as with any mechanical equipment the Package Cooling and Heat Pump units require regularly scheduled maintenance to preserve high performance standards, prolong the service life of the equip­ment, and lessen the chances of costly failure.
In many instances the owner may be able to perform some of the maintenance; however, the advantage of a service con­tract, which places all maintenance in the hands of a trained serviceman, should be pointed out to the owner.
WARNING
ONCE A MONTH
1. Inspect the return filters of the evaporator unit and clean or change if necessary.
NOTE: Depending on operation conditions, it may be necessary to clean the filters more often. If permanent type filters are used, they should be washed with warm water, dried and sprayed with an adhesive according to manufacturers recommendations.
2. When operating on the cooling cycle, inspect the conden­sate line piping from the evaporator coil. Make sure the piping is clear for proper condensate flow.
ONCE A YEAR
Qualified Service Personnel Only
1. Clean the indoor and outdoor coils.
2. Clean the casing of the outdoor unit inside and out .
3. Motors are permanently lubricated and do not require oil­ing. TO AVOID PREMATURE MOTOR FAILURE, DO NOT OIL.
4. Manually rotate the outdoor fan and indoor blower to be sure they run freely.
5. Inspect the control panel wiring, compressor connections, and all other component wiring to be sure all connections are tight. Inspect wire insulation to be certain that it is good.
6. Check the contacts of the compressor contactor. If they are burned or pitted, replace the contactor.
7. Using a halide or electronic leak detector, check all piping and etc. for refrigerant leaks.
8. Check the combustion chamber (Heat Exchanger) for soot, scale, etc. Inspect all burners for lint and proper position­ing.
9. Start the system, using the proper instrumentation check gas inlet and manifold pressures, burner flame and microamp signal. Adjust if necessary.
10.Start the system and run both a Cooling & Heating Perfor­mance Test. If the results of the test are not satisfactory, see the "Service Problem Analysis" Chart of the possible cause.
TEST EQUIPMENT
Proper test equipment for accurate diagnosis is as essential as regular hand tools.
The following is a must for every service technician and service shop:
1. Thermocouple type temperature meter - measure dry bulb temperature.
2. Sling psychrometer- measure relative humidity and wet bulb temperature.
3. Amprobe - measure amperage and voltage.
4. Volt-Ohm Meter - testing continuity, capacitors, and motor windings.
5. Accurate Leak Detector - testing for refrigerant leaks.
6. High Vacuum Pump - evacuation.
7. Electric Vacuum Gauge, Manifold Gauges and high vacuum hoses - to measure and obtain proper vacuum.
8. Accurate Electronic Scale - measure proper refrigerant charge.
9. Inclined Manometer - measure static pressure and pres­sure drop across coils.
Other recording type instruments can be essential in solving abnormal problems, however, in many instances they may be rented from local sources.
Proper equipment promotes faster, more efficient service, and accurate repairs with less call backs.
22
Page 23
SERVICING
SERVICING
COOLING /HEAT PUMP- SERVICE ANALYSIS GUIDE
Complaint
PO S S IBLE CAUS E
DOTS IN ANAL YS I S
GUIDE I N DICATE
"PO S S IBLE CAUSE"
Pow er Failure Blown Fuse Unbalanced Power, 3PH Loose Connection Shorted or Broken Wires Open Fan Over load Faulty Ther mostat Faulty Transf ormer Shorted or Open Capacitor Internal Com pressor Overload Open Shorted or Grounded Compres sor Compressor Stuck Faulty Compressor Contactor Faulty Fan Control Open Control Circuit Low Voltage Faulty Evap. Fan Motor Shorted or Grounded Fan Motor Imp roper Cooling An tic ipato r Shortage of Refrigerant Restric t ed L iquid Line Open Element or Limit on Elec. Heater Dirty Air Filter Dirty Indoor Coil Not enough air acros s Indoor Coil Too much air across Indoor Coil Overcharge of Refrigerant Dirty Outdoor Coil Noncondensibles Recirculation of Condensing Air Infiltration of Outd oo r Air Imp roperly Located Ther most at Air Flow Unbalanced System Undersized Broken Internal Parts Broken Valves Ineff icient Compres sor Loose Hold-dow n Bolts Fau lty Re v e rsing V a lv e Faulty Defrost Control Faulty Defrost Thermos tat Flow rator Not Seating Properly
N o Cooling
SYMPTOM
System will not star t
Compressor will not start - fan runs
Comp. and Cond. F a n w ill not start
Evaporator fan will not start
Condenser fan will not start
Compressor runs - goes off on overload
Compressor cycles on overload
••
••
••
••••••
••
••
••
••••
••
••
••
••
••
••
••
••
•• ••
••
••
••
••
••
Cooling or Heating Cycle (Heat Pump) Heating Cycle Only (Heat Pump)
Unsatisfactory
Cooling/He ating
System runs continuously - litt le cooling/htg
Too cool and then too warm
Not cool enough on warm days
Certain a reas too cool, others too warm
Compressor is noisy
System ru ns - blows cold air in heat ing
♦♦
••
••
••
••
••
••
••
♦♦♦ ♦♦♦
♦♦♦♦♦
♦♦♦♦♦♦♦
••
Unit will not terminate defrost
Pressures
Unit will not defrost
Low suction pressure
••
System
Operating
Low head pressure
High suction pressure
••
••
Test Me thod
Remedy
High head pressure
Test Voltage S-1 Inspect Fuse Size & Type S-1 Test Voltage S-1 Inspect Connection - Tighten S-2, S-3 Test Circuits With Ohmmeter S-2, S-3 Test Continuity of Over load S-17A Test c o nt inuity of Thermosta t & Wiring S-3 Check control circuit with voltmeter S-4 Test Capacitor S-15 Test Continuity of Over load S-17A Test Motor Windin g s S-17B Use Te s t Cor d S-17D Test continuity of Coil & Contacts S-7, S-8 Test c o nt inuity of Coil And Contacts S-7, S-9 Test Control Circuit with Voltmeter S-4 Test Voltage S-1 Repair or Replace S-16
Test Motor Windin g s S-16A ,D Check resistance of Anticipator S- 3B Test For Leaks, Add Refrigerant S-101,103 Remove Restriction, Replace Res tricted Part S- 112 Test Heater Element and Controls S-26,S-27 Inspect Filter-Clean or Replace
Inspec t Coil - Clean
Check Blow er Speed, Duct Static Press, Filter S-200
Reduce Blow er Speed S-200 Recover Part of Charge S-113 Inspec t Coil - Clean
Recover Charge, Evacuate, Rechar ge S- 114
Remove Obstruction to Air Flow Check Window s, Doors, Vent Fans, Etc. Relocate Thermostat Readjust Air Volume Dampers Refigur e Cooling Load Replace Compressor S-115 Test Compressor Eff iciency S-104 Test Compressor Eff iciency S-104 Tighten Bolts Replace V alve or Solenoid S-21, 122 Test Control S-24 Test Defrost Thermostat S-25 Check Flowrat or & Seat or Replace Flowrat or S-111
See Service Procedu re Ref.
23
Page 24
SERVICING
S-1 CHECKING VOLTAGE
WARNING
1. Remove doors, 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 single phase units, and L3, for 3 phase units.
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.
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 T1 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. 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 regards to either low or high voltage.
Unit Supply Volt a ge
Voltage Min. Max.
460 437 506
208/230 198 253
S-2 CHECKING WIRING
WARNING
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, WIRING, AND ANTICIPATOR
S-3A THERMOSTAT AND WIRING
WARNING
LINE V OL TAG E N OW PRES EN T.
With power ON and thermostat calling for cooling.
1. Use a voltmeter to verify 24 volts present at thermostat wires C and R.
2. If no voltage present, check transformer and transformer wiring. If 24 volts present, proceed to step 3.
3. Use a voltmeter to check for 24 volts at thermostat wires C and Y.
4. No voltage indicates trouble in the thermostat, wiring or external transformer source.
5. Check the continuity of the thermostat and wiring. Repair or replace as necessary.
Indoor Blower Motor
With power ON:
WARNING
LINE VOLTAG E N OW PRE S EN T.
1. Use a voltmeter to verify 24 volts present at thermostat wires C and R.
2. If no voltage present, check transformer and transformer wiring. If 24 volts present, proceed to step 3.
24
Page 25
SERVICING
3. Set fan selector switch at thermostat to "ON" position.
4. With voltmeter, check for 24 volts at wires C and G.
5. No voltage, indicates the trouble is in the thermostat or wiring.
6. Check the continuity of the thermostat and wiring. Repair or replace as necessary.
S-3B COOLING ANTICIPATOR
The cooling anticipator is a small heater (resistor) in the ther­mostat. During the "off" cycle it heats the bimetal element helping the thermostat call for the next cooling cycle. This prevents the room temperature from rising too high before the system is restarted. A properly sized anticipator should main­tain room temperature within 1 1/2 to 2 degree range.
The anticipator is supplied in the thermostat and is not to be replaced. If the anticipator should fail for any reason, the ther­mostat must be changed.
WARNING
1. Remove control panel cover or etc. to gain access to trans­former.
With power ON:
WARNING
LINE VOLTAG E N OW PRE S EN T.
S-3C HEATING ANTICIPATOR
The heating anticipator is a wire-wound adjustable heater, which is energized during the "ON" cycle to help prevent overheating of the conditioned space.
The anticipator is a part of the thermostat and if it should fail for any reason, the thermostat must be replaced. See the follow­ing for recommended heater anticipator setting.
To determine the proper setting, use an amp meter to measure the amperage on the "W" wire going to the thermostat.
Use an amprobe as shown below. Wrap 10 turns of thermostat wire around the stationary jaw of the amprobe and divide the reading by 10.
10 TURNS OF THERMOSTAT WIRE (From "W" on thermostat )
STATIONARY JAW OF AMPROBE
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 is present at the primary voltage side of the
transformer and 24 volts is not present on the secondary side, then the transformer is inoperative. Replace.
S-7 CHECKING CONTACTOR AND/OR RELAYS
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.
WARNING
DISCONNECT POW ER SUPPLY BEFORE SER VICING.
READS 4 AMPS CURRENT DRAW WOULD BE .4 AMPS
Checking Heat Anticipator Amp Draw
S-4 CHECKING TRANSFORMER AND CONTROL CIRCUIT
A step-down transformer (208/240 volt primary to 24 volt sec­ondary) is provided with each package unit. This allows ample capacity for use with resistance heaters.
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.
S-8 CHECKING CONTACTOR CONTACTS
WARNING
DISCONNECT POWER SUPPLY BEFORE SERVICING.
25
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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 VOLTAG E NOW PRESENT.
T2
VOLT/OHM
METER
Ohmmeter for testing holding coil Voltmeter for testing contacts
T1
CC
L1L2
3. If not as in steps 1 and 2, replace EBTDR.
Checking EBTDR Contact Operation
With power on:
WARNING
LINE V OLTAGE N OW PRES E NT.
1. Set the thermostat to the fan "on" position.
2. Check for 24 volts at the C and G terminals of the EBTDR.
3. If no voltage present, check fan circuit from thermostat. If 24 volts present, proceed to step 4.
4. Using a VOM, check for line voltage from the purple wire at the transformer (terminal 3 on 240 volt units, terminal 2 on 208 volt units) to terminal NO on the EBTDR. Should read line voltage. If no voltage present, check line voltage wiring in unit. If line voltage present, proceed to step 5.
5. Using a VOM, check for line voltage from the purple wire at the transformer (terminal 3 on 240 volt units, terminal 2 on 208 volt units) to the COM terminal on the EBTDR. Should read line voltage. If not as above, replace EBTDR.
PSC Type Blower Motor Models Only
TESTING COMPRESSOR CONTACTOR
(Single Phase)
3. Using a voltmeter, test across terminals. A. L1 to L2 - No voltage. Check breaker or fuses on main
power supply. If voltage present, proceed to step B.
B. T1 to T2 - Meter should read the same as L1 to L2 in
step A. If voltage readings are not the same as step A, replace contactor.
S-9 CHECKING FAN RELAY CONTACTS
The Electronic Blower Time Delay Relay is used on models equipped with PSC type blower motors.
WARNING
Checking EBTDR High Voltage Contacts
1. With power off, remove wires from terminals NC, COM, and NO.
2. Using a VOM, check for resistance from NO to COM. Should read open. Next, check for resistance from NC to COM. Should read closed.
Heat pump and cooler models equipped with PSC type blower motors have an isolation relay with a 240 volt holding coil in
addition to the EBTDR.
WARNING
DISCONNECT POWER SUPPLY B EFORE SERVICING.
Turn power off.
Testing relay holding coil
1. Remove the leads from the holding coil terminals 1 and 3.
2. Using an ohmmeter, test across the coil terminals 1 and 3. If the coil does not test continuous, replace the relay.
Testing relay contacts
WARNING
DISCONNECT POWER SUPPLY BEFORE SERVICING.
Turn power off.
1. Using a VOM, test resistance across relay terminals 2 and
4. Should read open.
2. Turn power on.
26
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SERVICING
WARNING
With power ON:
LINE VOLTAG E NOW PRESENT.
3. Apply 240 volts to coil terminals 1 and 3.
4. Using a VOM, check for 240 volts from terminals 3 and 1 of relay. Should read 240 volts. In no voltage, check wiring from heater kit to relay. If voltage present, proceed to step
5.
5. Using a VOM, check for 240 volts from L1 at contactor to terminal 4 of relay. Should read 240 volts. Next check from L1 at contactor to terminal 2 of relay. Should read 240 volts.
If not as above, replace relay.
S-11 CHECKING LOSS OF CHARGE PROTECTOR
(Heat Pump Models)
The loss of charge protector 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 22 + 7 PSIG. It will automatically cut-in (close) at approximately 50 + 7 PSIG.
Test for continuity using a VOM and if not as above, replace the control.
S-12 CHECKING HIGH PRESSURE CONTROL
WARNING
LINE V OLTAGE N OW PRES E NT.
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 cuts­out.
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. The control should reset at 420 PSIG ± 25 PSIG.
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.
HIGH VOL TAGE! Disconnect ALL power before servicing or installing this unit. Multiple power sources may be present. Failure to do so may cause property damage, personal injury or death.
The high pressure control senses the pressure in the liquid line. If abnormally high discharge 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 access fitting on the liquid line.
CAPACITOR, START SCROLL COMPRESSOR MODELS
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 hard start kits are available and may improve low voltage starting characteris­tics.
This check valve closes off high side pressure to the compres­sor after shut down allowing equalization through the scroll flanks. Equalization requires only about one or two seconds during which time the compressor may turn backwards.
Your unit comes with a 180-second anti-short cycle to prevent the compressor from starting and running backwards.
MODELS EQUIPPED WITH A HARD START DEVICE
A start capacitor is wired in parallel with the run capacitor to increase the starting torque. The start capacitor is of the elec­trolytic type, rather than metallized polypropylene as used in the run capacitor.
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SERVICING
A switching device must be wired in series with the capacitor to remove it from the electrical circuit after the compressor starts to run. Not removing the start capacitor will overheat the capacitor and burn out the compressor windings.
These capacitors have a 15,000 ohm, 2 watt resistor wired across its terminals. The object of the resistor is to discharge the capacitor under certain operating conditions, rather than having it discharge across the closing of the contacts within the switching device such as the Start Relay, and to reduce the chance of shock to the servicer. See the Servicing Section for specific information concerning capacitors.
RELAY, START
A potential or voltage type relay is used to take the start ca­pacitor out of the circuit once the motor comes up to speed. This type of relay is position sensitive. The normally closed contacts are wired in series with the start capacitor and the relay holding coil is wired parallel with the start winding. As the motor starts and comes up to speed, the increase in volt­age across the start winding will energize the start relay hold­ing coil and open the contacts to the start capacitor.
Two quick ways to test a capacitor are a resistance and a capacitance check.
S-15A RESISTANCE CHECK
2. Set an ohmmeter on its highest ohm scale and connect the leads to the capacitor -
A. Good Condition - indicator swings to zero and slowly returns to infinity. (Start capacitor will 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).
S-15B CAPACITANCE CHECK
WARNING
DISCHARGE CAPACITOR THROUGH A 20 TO 30 OHM RESISTOR BEFORE HANDLING.
Using a hookup as shown below, take the amperage and volt­age readings and use them in the formula:
Capacitance (MFD) = 2650 X Amperage
Voltage
WARNING
1. Discharge capacitor and remove wire leads.
WARNING
DISCHARGE CAPACITOR THROUGH A 20 TO 30 OHM RESISTOR BEFORE HANDLING.
Volt / Ohm Meter
VOLTM ETER
15 AMP
FUSE
AMMETER
CAPACITO R
TESTING CAPACITANCE
28
tor
i
Capac
TESTING CAPACITOR RESISTANCE
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SERVICING
S-16 CHECKING MOTORS S-16A CHECKING FAN AND BLOWER MOTOR
WINDINGS (PSC MOTORS)
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.
Applies only to units with 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.
WARNING
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 an unpainted end of 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 any lead to ground, replace the motor.
High Voltage Connections
3/16"
C
123
LGN
4
5
Low Voltage Connections
1/4”
EEM MOTOR CONNECTIONS
S-17 CHECKING COMPRESSOR WINDINGS
S-16D CHECKING EEM (ENERGY EFFICIENT MOTOR) MOTORS
Applies only to units with EEM Motors
The EEM Motor is a one piece, fully encapsulated, 3 phase brushless DC (single phase AC input) motor with ball bearing construction. Unlike the ECM 2.3/2.5 motors, the EEM fea­tures an integral control module.
Note: The GE TECMate will not currently operate the EEM motor.
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 to step 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.
WARNING
HERMETIC COMPRESSOR ELECTRICAL TERMINAL VENTING CAN BE DANGEROUS. WHEN INSULATING MATERIAL WHICH SUPPORTS A HERMETIC COM­PRESSOR OR ELECTRICAL TERMINAL SUDDENLY DISINTEGRATES DUE TO PHYSICAL ABUSE OR AS A RESULT OF AN ELECT RICAL SHORT BE TWEEN THE TERMINAL AND THE COMPRESSOR HOUSING, THE TERMINAL MAY BE EXPELLED, VENTING THE VAPOR AND LIQUID CONTENTS OF THE COMPRES­SOR HOUSING AND SYSTEM.
If the compressor terminal PROTECTIVE COVER and gasket (if required) is 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.
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SERVICING
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.
If the following test indicates shorted, grounded or open wind­ings, see procedure S-19 for the next steps to be taken.
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
S-17B GROUND TEST
S-17A RESISTANCE 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. The three phase internal overload will open all three legs.
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.
WARNING
1. Remove the leads from the compressor terminals.
If fuse, circuit breaker, ground fault protective device, etc., has tripped, this is a strong indication that an electrical problem exists and must be found and corrected. The circuit protective device rating must be checked and its maximum rating should coincide with that marked on the equipment nameplate.
With the terminal protective cover in place, it is acceptable to replace the fuse or reset the circuit breaker ONE TIME ONLY to see if it was just a nuisance opening. If it opens again, DO NOT continue to reset.
Disconnect all power to unit, making sure that all power legs are open.
1. DO NOT remove protective terminal cover. Disconnect the three leads going to the compressor terminals at the near­est point to the compressor.
WARNING
DAMAGE CAN OCCUR TO THE GLASS EMBEDDED TERMINALS IF THE LEADS ARE NOT PROPERLY REMOVED. THIS CAN RESULT IN TERMINAL AND HOT OIL DISCHARGING.
WARNING
SEE WARNINGS S-17 BEFORE REMOVING COMPRES­SOR TERMINAL COVER.
2. Using an ohmmeter, test continuity between terminals S­R, C-R, and C-S, on single phase units or terminals T1, T2 and T3, on 3 phase units.
30
HI-POT
COMPRESSOR GROUND TEST
2. Identify the leads and using a Megger, Hi-Potential Ground Tester, or other suitable instrument which puts out a volt­age between 300 and 1500 volts, check for a ground sepa­rately between each of the three leads and ground (such as an unpainted tube on the compressor). Do not use a low voltage output instrument such as a volt-ohmmeter.
Page 31
SERVICING
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.
Carefully retest for ground, directly between compressor terminals and ground.
5. If ground is indicated, replace the compressor.
S-17D OPERATION TEST
If the voltage, capacitor, overload and motor winding test fail to show the cause for failure:
WARNING
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.
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.
The condition of the scroll flanks is checked in the following manner.
1. Attach gauges to the high and low side of the system.
2. Start the system and run a “Cooling Performance Test.
If the test shows:
a. Below normal high side pressure. b. Above normal low side pressure. c. Low temperature difference across coil. d. Low amp draw at compressor.
S-18 TESTING CRANKCASE HEATER
(OPTIONAL ITEM)
Note: Not all compressors use crankcase heaters.
The crankcase heater must be energized a minimum of twenty­four (24) hours before the compressor 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. On some models, the crankcase heater is controlled by a crank­case heater thermostat that is wired in series with the crank­case heater.
A crankcase heater will not prevent compressor damage due to a floodback or over charge condition.
WARNING
DISCONNECT POWER SUPPLY BEFORE SERVICING.
1. Disconnect the heater lead wires.
2. Using an ohmmeter, check heater continuity - should test continuous, if not, replace.
S-18A CHECKING CRANKCASE HEATER THERMOSTAT
Note: Not all models with crankcase heaters will have a
crankcase heater thermostat.
1. Install a thermocouple type temperature test lead on the discharge line adjacent to the crankcase heater thermo­stat.
2. Check the temperature at which the control closes its con­tacts by lowering the temperature of the control. The crank­case heater thermostat should close at 67°F ± 5°F.
3. Check the temperature at which the control opens its con­tacts by raising the temperature of the control. The crank­case heater thermostat should open at 85°F ± 5°F.
4. If not as above, replace control.
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.
and the charge is correct, test the reversing valve if equipped (heat pump models only. See-S-21). If the reversing valves test good, the compressor is faulty - replace the compressor.
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SERVICING
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.
If voltage is registered at the coil, tap the valve body lightly while switching the system from HEATING to COOLING, etc. If this fails to cause the valve to switch positions, remove the coil connector cap and test the continuity of the reversing valve solenoid coil. If the coil does not test continuous - replace it.
If the coil test continuous and 24 volts is present at the coil terminals, the valve is inoperative - replace it.
S-24 TESTING DEFROST CONTROL
NOTE: PCBDM133 and PCBDM160 defrost controls have a three (3) minute compressor off cycle delay.
NOTE: The PCBDM133 and PCBDM160 defrost controls are
shipped from the factory with the compressor delay option selected. This will de-energize the compressor contactor for 30 seconds on defrost initiation and defrost termination. If the jumper is set to Normal, the compressor will continue to run during defrost initiation and defrost termination. The control will also ignore the low pressure switch connected to R-PS1 and PS2 for 5 minutes upon defrost initiation and 5 minutes
after defrost termination. 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" on PCBDM133 and PCBDM160) 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" ("O-RV" on PCBDM133 and PCBDM160). 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 (208­230 VAC) indicating the relay is open in the defrost mode.
7. Using VOM check for voltage across "W2" (W on PCBDM133 and PCBDM160) & "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. It should close at approximately 32°F ± 2°F.
3. Check the temperature at which the control opens its con­tacts by raising the temperature of the control. It should open at approximately 60°F.
4. If not as above, replace control.
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 ELECTRICAL POWER SUPPLY.
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.
WARNING
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.
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SERVICING
S-100 REFRIGERATION REPAIR PRACTICE
DANGER
ALWAYS REMOVE THE REFRIGERANT CHARGE IN A PROPER MANNER BEFORE APPLYING HEAT TO THE SYSTEM.
These models use the FasTest Access Fitting System, with a saddle that is either soldered to the suction and liquid lines or is fastened with a locking nut to the access fitting box (core) and then screwed into the saddle. Do not remove the core
from the saddle until the refrigerant charge has been removed. Failure to do so could result in property dam­age or personal injury.
When installing a new core or reinstalling the core after re­moval, it is very important to note that before inserting the core into the saddle, the core and saddle must be free of debris and the “O” Ring must have a thin coating of refrigerant oil applied to it. The oil is to prevent the “O” Ring from being deformed when the core is tightened completely. The core should be torqued to 8 ft. lb.
When repairing the refrigeration system:
WARNING
DISCONNECT ELECTRICAL POWER SUPPLY.
1. Never open a system that is under vacuum. Air and mois­ture will be drawn in.
2. Plug or cap all openings.
3. Remove all burrs and clean the brazing surfaces of the tubing with sand cloth or paper. Brazing materials do not flow well on oxidized or oily surfaces.
4. Clean the inside of all new tubing to remove oils and pipe chips.
5. When brazing, sweep the tubing with dry nitrogen to pre­vent the formation of oxides on the inside surfaces.
6. Complete any repair by replacing the liquid line drier in the system, evacuate and charge.
At any time the system has been open for repair, the factory installed liquid line filter drier must be replaced.
S-101 LEAK TESTING
(NITROGEN OR NITROGEN-TRACED)
WARNING
WARNING
Pressure test the system using dry nitrogen and soapy water to locate leaks. If you wish to use a leak detector, charge the system to 10 psi using the appropriate refrigerant then use nitrogen to finish charging the system to working pressure, then apply the detector to suspect areas. If leaks are found, repair them. After repair, repeat the pressure test. If no leaks exist, proceed to system evacuation.
For a system that contains a refrigerant charge and is sus­pected of having a leak, stop the operation and hold the explor­ing tube of the detector as close to the tube as possible, check all piping and fittings. If a leak is detected, do not attempt to apply more brazing to the joint. Remove and capture the charge, unbraze the joint, clean and rebraze.
For a system that has been newly repaired and does not con­tain a charge, connect a cylinder of refrigerant, through a gauge manifold, to the liquid and suction line dill valves and/or liquid line dill valve and compressor process tube.
NOTE: Refrigerant hoses must be equipped with dill valve de­pressors or special adaptor used. Open the valve on the cylin­der and manifold and allow the pressure to build up within the system. Check for and handle leaks, as described above. After the test has been completed, remove and capture the leak test refrigerant.
S-102 EVACUATION
BRAZING MATERIALS
Copper to Copper Joints - Sil-Fos used without flux (alloy of 15% silver, 80% copper, and 5% phosphorous). Recommended heat 1400°F.
Copper to Steel Joints - Silver Solder used without a flux (alloy of 30% silver, 38% copper, 32% zinc). Recommended heat - 1200°F.
WARNING
This is the most important part of the entire service procedure. The life and efficiency of the equipment is dependent upon the thoroughness exercised by the serviceman when evacuating air (non-condensable) and moisture from the system.
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SERVICING
Air in a system causes high condensing temperature and pres­sure, resulting in increased power input and reduced perfor­mance.
Moisture chemically reacts with the refrigerant and oil to form corrosive hydrofluoric and hydrochloric acids. These attack motor windings and parts, causing breakdown.
The equipment required to thoroughly evacuate the system is a high vacuum pump, capable of producing a vacuum equiva­lent to 25 microns absolute and a thermocouple vacuum gauge to give a true reading of the vacuum in the system
NOTE: Never use the system compressor as a vacuum pump or run when under a high vacuum. Motor damage could occur.
WARNING
SCROLL COMPRESSORS DO NOT FRONT SEAT T HE SERVICE VALV E(S) WITH THE COMPRESSOR OPERATING IN AN ATTEMPT TO SAVE REFRIGERANT. WITH THE SUCTION LINE OF THE COMPRESSOR CLOSED OR SEVERLY RESTRICT­ED, THE SCROLL COMPRESSOR WILL DRAW A DEEP VACUUM VERY QUICKLY. THIS VACUUM CAN CAUSE INTERNAL ARCING OF THE FUSITE RESULTING IN A DAMAGED OR FAILED COMPRESSOR.
3. If the vacuum pump is working properly, close the valve to the vacuum thermocouple gauge and open the high and low side valves to the high vacuum manifold set. With the valve on the charging cylinder closed, open the manifold valve to the cylinder.
4. Evacuate the system to at least 29 inches gauge before opening valve to thermocouple vacuum gauge.
5. Continue to evacuate to a minimum of 250 microns. Close valve to vacuum pump and watch rate of rise. If vacuum does not rise above 1500 microns in three to five minutes, system can be considered properly evacuated.
6. If thermocouple vacuum gauge continues to rise and levels off at about 5000 microns, moisture and non-condensables are still present. If gauge continues to rise a leak is present. Repair and re-evacuate.
7. Close valve to thermocouple vacuum gauge and vacuum pump. Shut off pump and prepare to charge.
S-103 CHARGING
WARNING
LOW SIDE
GAUGE
AND VAL V E
1. Connect the vacuum pump, vacuum tight manifold set with high vacuum hoses, thermocouple vacuum gauge and charg­ing cylinder as shown.
2. Start the vacuum pump and open the shut off valve to the high vacuum gauge manifold only. After the compound gauge (low side) has dropped to approximately 29 inches of vacuum, open the valve to the vacuum thermocouple gauge. See that the vacuum pump will blank-off to a maxi­mum of 25 microns. A high vacuum pump can only pro­duce a good vacuum if its oil is non-contaminated.
HIGH SIDE
GAUGE
AND VALVE
CAUTION
Charge the system with the exact amount of refrigerant. Refer to the specification section or check the unit nameplates
for the correct refrigerant charge. After completing airflow measurements and adjustments, the
unit’s refrigerant charge must be checked. The unit comes factory charged, but this charge is based on 400 CFM per ton at minimum ESP per AHRI test conditions (generally between .15 - .25 ESP). When air quantity or ESP is different than above, charge must be adjusted to the proper amount.
All package units are charged to the superheat method at the compressor suction line (these are fixed orifice devices).
For charging in the warmer months, 100F superheat at the com­pressor is required at conditions: 950F outdoor ambient (dry bulb temperature), 800F dry bulb / 670F wet bulb indoor ambi­ent, approximately 50% humidity. This superheat varies when conditions vary from the conditions described.
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SERVICING
A superheat charge chart is available for other operating condi­tions. Use it to provide the correct superheat at the conditions the unit is being charged at.
After superheat is adjusted it is recommended to check unit sub-cooling at the condenser coil liquid line out. In most oper­ating conditions 12
An inaccurately charged system will cause future problems.
1. Using a quality set of charging scales, weigh the proper amount of refrigerant for the system. Allow liquid refrigerant only to enter the high side.
2. After the system will take all it will take, close the valve on the high side of the charging manifold.
3. Start the system and charge the balance of the refrigerant through the low side.
NOTE: R410A should be drawn out of the storage con­tainer or drum in liquid form due to its fractionation proper­ties, but should be "Flashed" to its gas state before enter­ing the system. There are commercially available restric­tion devices that fit into the system charging hose set to accomplish this. DO NOT charge liquid R410A into the compressor.
4. With the system still running, close the valve on the charg­ing cylinder. At this time, you may still have some liquid refrigerant in the charging cylinder hose and will definitely have liquid in the liquid hose. Slowly open the high side manifold valve and transfer the liquid refrigerant from the liquid line hose and charging cylinder hose into the suction service valve port. CAREFUL: Watch so that liquid refrig­erant does not enter the compressor.
Final Charge Adjustment
The outdoor temperature must be 60°F or higher. Set the room thermostat to COOL, fan switch to AUTO, and set the tem­perature control well below room temperature.
After system has stabilized per start-up instructions, compare the operating pressures and outdoor unit amp draw to the num­bers listed in the technical manual. If pressures and amp draw are too low, add charge. If pressures and amp draw are too high, remove charge. Check subcooling and superheat as de­tailed in the following section.
5. With the system still running, remove hose and reinstall both access fitting caps.
6. Check system for leaks.
Due to their design, Scroll compressors are inherently 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. S-104 CHECK-
ING COMPRESSOR EFFICIENCY
+ 40F of sub-cooling is adequate.
The reason for compressor inefficiency is broken or damaged suction and/or discharge valves, or scroll flanks on Scroll com­pressors, reducing the ability of the compressor to pump re­frigerant vapor.
The condition of the valves or scroll flanks is checked in the following manner.
1. Attach gauges to the high and low side of the system.
2. Start the system and run a Cooling Performance Test. If the test shows-
Below normal high side pressure.
Above normal low side pressure.
Low temperature difference across coil.
Low amp draw at compressor.
-and the charge is correct. The compressor is faulty - replace the compressor.
S-104 CHECKING COMPRESSOR EFFICIENCY
The reason for compressor inefficiency is broken or damaged suction and/or discharge valves, or scroll flanks on Scroll com­pressors, reducing the ability of the compressor to pump re­frigerant vapor.
During the "OFF" cycle, the high side pressure bleeds to the low side through the fixed orifice restriction device. Check equalization time as follows:
1. Attach a gauge manifold to the suction and liquid line ac­cess fittings.
2. Start the system and allow the pressures to stabilize.
3. Stop the system and check the time it takes for the high and low pressure gauge readings to equalize.
If it takes more than seven (7) minutes to equalize, the restrictor device is inoperative. Replace, install a liquid line drier, evacu­ate and recharge.
S-108 SUPERHEAT
CHECKING SUPERHEAT
Refrigerant gas is considered superheated whenever its tem­perature is higher than the saturation temperature correspond­ing to its pressure. The degree of superheat equals the de­grees of temperature increase above the saturation tempera­ture at existing pressure. See Temperature - Pressure Chart.
35
Page 36
SERVICING
CAUTION
To prevent personal injury, carefully connect and disconnect manifold gauge hoses. Escaping liquid refrigerant can cause burns. Do not vent refrigerant to atmosphere. Recover during system repair or final unit disposal.
1. Run system at least 10 minutes to allow pressure to sta­bilize.
2. Temporarily install thermometer on suction (large) line near compressor with adequate contact and insulate for best possible reading.
3. Refer to the superheat table provided for proper system superheat. Add charge to lower superheat or recover charge to raise superheat.
Superheat Formula = Suct. Line Temp. - Sat. Suct. Temp.
Ambient Condenser
Inlet Temp (°F
Drybulb)
100
95 90 85 80
75 10 13 17 25 29 70 10 17 20 28 32 65 13 19 26 32 35 60 17 25 30 33 37
EXAMPLE:
a. Suction Pressure = 143 b. Corresponding Temp. °F. = 50 c. Thermometer on Suction Line = 59°F.
To obtain the degrees temperature of superheat, subtract 50.0 from 59.0°F.
The difference is 9° Superheat. The 9° Superheat would fall in the ± range of allowable superheat.
S-109 CHECKING SUBCOOLING
Refrigerant liquid is considered subcooled when its tempera­ture is lower than the saturation temperature corresponding to its pressure. The degree of subcooling equals the degrees of temperature decrease below the saturation temperature at the existing pressure.
Return Air Temp. (°F Drybulb)
65 70 75
-
-
- - 10 10 10
- - 12 15 18
- 10 13 17 20
- 10 15 21 26
-
80 85
10 10
1. Attach an accurate thermometer or preferably a thermo­couple type temperature tester to the liquid line close to the pressure switch.
2. Install a high side pressure gauge on the liquid access fitting.
3. Record the gauge pressure and the temperature of the line.
4. Compare the hi-pressure reading to the "Required Liquid Line Temperature" chart. Find the hi-pressure value on the left column. Follow that line right to the column under the design subcooling value. Where the two intersect is the required liquid line temperature.
Alternately you can convert the liquid line pressure gauge reading to temperature by finding the gauge reading in Tem­perature - Pressure Chart and reading to the left, find the temperature in the °F. Column.
5. The difference between the thermometer reading and pres­sure to temperature conversion is the amount of subcooling.
Subcooling Formula = Sat. Liquid Temp. - Liquid Line Temp.
EXAMPLE:
a. Liquid Line Pressure = 417 b. Corresponding Temp. °F. = 120° c. Thermometer on Liquid line = 109°F.
To obtain the amount of subcooling, subtract 109°F from 120°F. The difference is 11° subcooling. See the specification sheet
or technical information manual for the design subcooling range for your unit.
See R410A Pressure vs. Temperature chart.
S-111 FIXED ORIFICE RESTRICTION DEVICES
The fixed orifice restriction device (flowrator) used in conjunc­tion with the indoor coil is a predetermined bore (I.D.).
It is designed to control the rate of liquid refrigerant flow into an evaporator coil.
The amount of refrigerant that flows through the fixed orifice restriction device is regulated by the pressure difference be­tween the high and low sides of the system.
In the cooling cycle when the outdoor air temperature rises, the high side condensing pressure rises. At the same time, the cooling load on the indoor coil increases, causing the low side pressure to rise, but at a slower rate.
Since the high side pressure rises faster when the tempera­ture increases, more refrigerant flows to the evaporator, increas­ing the cooling capacity of the system.
When the outdoor temperature falls, the reverse takes place. The condensing pressure falls, and the cooling loads on the indoor coil decreases, causing less refrigerant flow.
36
Page 37
SERVICING
If a restriction should become evident, proceed as follows:
1. Recover refrigerant charge.
2. Remove the orifice assembly and clean or replace.
3. Replace liquid line drier, evacuate and recharge.
CHECKING EQUALIZATION TIME
During the "OFF" cycle, the high side pressure bleeds to the low side through the fixed orifice restriction device. Check equalization time as follows:
1. Attach a gauge manifold to the suction and liquid line dill valves
2. Start the system and allow the pressures to stabilize.
3. Stop the system and check the time it takes for the high and low pressure gauge readings to equalize.
If it takes more than seven (7) minutes to equalize, the restric­tion device is inoperative. Replace, install a liquid line drier, evacuate and recharge.
S-112 CHECKING RESTRICTED LIQUID LINE
When the system is operating, the liquid line is warm to the touch. If the liquid line is restricted, a definite temperature drop will be noticed at the point of restriction. In severe cases, frost will form at the restriction and extend down the line in the direction of the flow.
Discharge and suction pressures will be low, giving the ap­pearance of an undercharged unit. However, the unit will have normal to high subcooling.
If a restriction is located, replace the restricted part, replace drier, evacuate and recharge.
S-113 REFRIGERANT OVERCHARGE
An overcharge of refrigerant is normally indicated by an exces­sively high head pressure.
An evaporator coil, using an expansion valve metering device, will basically modulate and control a flooded evaporator and prevent liquid refrigerant from returning to the compressor.
An evaporator coil, using a fixed orifice restrictor device (flowrator) metering device, could allow liquid refrigerant to re­turn to the compressor under extreme overcharge conditions.
Also with a fixed orifice restrictor device (flowrator) metering device, extreme cases of insufficient indoor air can cause icing of the indoor coil and liquid refrigerant to return to the compres­sor, but the head pressure would be lower.
There are other causes for high head pressure which may be found in the "Service Problem Analysis Guide."
If other causes check out normal, an overcharge or a system containing non-condensables would be indicated.
If this system is observed:
1. Start the system.
2. Remove and capture small quantities of refrigerant as from the suction line access fitting until the head pressure is reduced to normal.
3. Observe the system while running a cooling performance test. If a shortage of refrigerant is indicated, then the sys­tem contains non-condensables.
S-114 NON-CONDENSABLES
If non-condensables are suspected, shut down the system and allow the pressures to equalize. Wait at least 15 minutes. Compare the pressure to the temperature of the coldest coil since this is where most of the refrigerant will be. If the pres­sure indicates a higher temperature than that of the coil tem­perature, non-condensables are present.
Non-condensables are removed from the system by first re­moving the refrigerant charge, replacing and/or installing liquid line drier, evacuating and recharging.
37
Page 38
SERVICING
PSIG
100 102 104 106 108 110 112
°F 12 14 16 18 20 22 24 26 28 -17.9 130.0 44.7 232.0 78.9 334.0 103.7 436.0 123.5 538.0 140.1 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 7.3 160.0 56.2 262.0 86.9 364.0 110.0 466.0 128.7 596.0 148.4 60 62 64 66 68 70 72 74 76 78 80 82 84 86 88 25.4 190.0 66.4 292.0 94.3 394.0 115.8 496.0 133.6 656.0 156.6 90 92 94 96 98
-37.7
-34.7
-32.0
-29.4
-36.9
-24.5
-22.2
-20.0
-15.8
-13.8
-11.9
-10.1
-8.3
-6.5
-4.5
-3.2
-1.6
0.0
1.5
3.0
4.5
5.9
8.6
10.0
11.3
12.6
13.8
15.1
16.3
17.5
18.7
19.8
21.0
22.1
23.2
24.3
26.4
27.4
28.5
29.5
30.5
31.2
32.2
33.2
34.1
35.1
35.5
36.9
PSIG
114.0
116.0
118.0
120.0
122.0
124.0
126.0
128.0
132.0
134.0
136.0
138.0
140.0
142.0
144.0
146.0
148.0
150.0
152.0
154.0
156.0
158.0
162.0
164.0
166.0
168.0
170.0
172.0
174.0
176.0
178.0
180.0
182.0
184.0
186.0
188.0
192.0
194.0
196.0
198.0
200.0
202.0
204.0
206.0
208.0
210.0
212.0
214.0
Pressure vs. Temperature Chart
R-410A
°F
37.8
38.7
39.5
40.5
41.3
42.2
43.0
43.8
45.5
46.3
47.1
47.9
48.7
49.5
50.3
51.1
51.8
52.5
53.3
54.0
54.8
55.5
57.0
57.7
58.4
59.0
59.8
60.5
61.1
61.8
62.5
63.1
63.8
64.5
65.1
65.8
67.0
67.7
68.3
68.9
69.5
70.1
70.7
71.4
72.0
72.6
73.2
73.8
PSIG
216.0
218.0
220.0
222.0
224.0
226.0
228.0
230.0
234.0
236.0
238.0
240.0
242.0
244.0
246.0
248.0
250.0
252.0
254.0
256.0
258.0
260.0
264.0
266.0
268.0
270.0
272.0
274.0
276.0
278.0
280.0
282.0
284.0
286.0
288.0
290.0
294.0
296.0
298.0
300.0
302.0
304.0
306.0
308.0
310.0
312.0
314.0
316.0
°F
74.3
74.9
75.5
76.1
76.7
77.2
77.8
78.4
79.5
80.0
80.6
81.1
81.6
82.2
82.7
83.3
83.8
84.3
84.8
85.4
85.9
86.4
87.4
87.9
88.4
88.9
89.4
89.9
90.4
90.9
91.4
91.9
92.4
92.8
93.3
93.8
94.8
95.2
95.7
96.2
96.6
97.1
97.5
98.0
98.4
98.9
99.3
99.7
PSIG
318.0
320.0
322.0
324.0
326.0
328.0
330.0
332.0
336.0
338.0
340.0
342.0
344.0
346.0
348.0
350.0
352.0
354.0
356.0
358.0
360.0
362.0
366.0
368.0
370.0
372.0
374.0
376.0
378.0
380.0
382.0
384.0
386.0
388.0
390.0
392.0
396.0
398.0
400.0
402.0
404.0
406.0
408.0
410.0
412.0
414.0
416.0
418.0
°F
100.2
100.7
101.1
101.6
102.0
102.4
102.9
103.3
104.2
104.6
105.1
105.4
105.8
106.3
106.6
107.1
107.5
107.9
108.3
108.8
109.2
109.6
110.4
110.8
111.2
111.6
112.0
112.4
112.6
113.1
113.5
113.9
114.3
114.7
115.0
115.5
116.2
116.6
117.0
117.3
117.7
118.1
118.5
118.8
119.2
119.6
119.9
120.3
PSIG
420.0
422.0
424.0
426.0
428.0
430.0
432.0
434.0
438.0
440.0
442.0
444.0
446.0
448.0
450.0
452.0
454.0
456.0
458.0
460.0
462.0
464.0
468.0
470.0
472.0
474.0
476.0
478.0
480.0
482.0
484.0
486.0
488.0
490.0
492.0
494.0
498.0
500.0
502.0
504.0
506.0
508.0
510.0
512.0
514.0
516.0
518.0
520.0
°F
120.7
121.0
121.4
121.7
122.1
122.5
122.8
123.2
123.9
124.2
124.6
124.9
125.3
125.6
126.0
126.3
126.6
127.0
127.3
127.7
128.0
128.3
129.0
129.3
129.7
130.0
130.3
130.7
131.0
131.3
131.6
132.0
132.3
132.6
132.9
133.3
133.9
134.0
134.5
134.8
135.2
135.5
135.8
136.1
136.4
136.7
137.0
137.3
PSIG
522.0
524.0
526.0
528.0
530.0
532.0
534.0
536.0
540.0
544.0
548.0
552.0
556.0
560.0
564.0
568.0
572.0
576.0
580.0
584.0
588.0
592.0
600.0
604.0
608.0
612.0
616.0
620.0
624.0
628.0
632.0
636.0
640.0
644.0
648.0
652.0
660.0
664.0
668.0
672.0
676.0
680.0
684.0
688.0
692.0
696.0
°F
137.6
137.9
138.3
138.6
138.9
139.2
139.5
139.8
140.4
141.0
141.6
142.1
142.7
143.3
143.9
144.5
145.0
145.6
146.2
146.7
147.3
147.9
149.0
149.5
150.1
150.6
151.2
151.7
152.3
152.8
153.4
153.9
154.5
155.0
155.5
156.1
157.1
157.7
158.2
158.7
159.2
159.8
160.3
160.8
161.3
161.8
*Based on ALLIED SIGNAL Data
38
Page 39
SERVICING
LIQUID PRESSURE
LIQU ID PRESS U RE
AT ACCESS FITTING (PSIG)
AT SERVICE VALVE (PSIG) 8 10 12 14 16 18
REQUIRED LIQUID LINE TEMPERATURE
REQUIRED SUBCOOLING TEMPER ATURE (°F)
189 58 56 54 52 50 48 195 605856545250 202 626058565452 208 646260585654 215 666462605856 222 686664626058 229 706866646260 236 727068666462 243 747270686664 251 767472706866 259 787674727068 266 807876747270 274 828078767472 283 848280787674 291 868482807876 299 888684828078 308 908886848280 317 929088868482 326 949290888684 335 969492908886 345 989694929088 354 100 98 96 94 92 90 364 102 100 98 96 94 92 374 104 102 100 98 96 94 384 106 104 102 100 98 96 395 108 106 104 102 100 98 406 110 108 106 104 102 100 416 112 110 108 106 104 102 427 114 112 110 108 106 104 439 116 114 112 110 108 106 450 118 116 114 112 110 108 462 120 118 116 114 112 110 474 122 120 118 116 114 112 486 124 122 120 118 116 114 499 126 124 122 120 118 116 511 128 126 124 122 120 118
39
Page 40
SERVICING
S-115 COMPRESSOR BURNOUT
When a compressor burns out, high temperature develops caus­ing the refrigerant, oil and motor insulation to decompose form­ing acids and sludge.
If a compressor is suspected of being burned-out, attach a refrigerant hose to the liquid line dill valve and properly remove and dispose of the refrigerant.
NOTICE
Now determine if a burn out has actually occurred. Confirm by analyzing an oil sample using a Sporlan Acid Test Kit, AK-3 or its equivalent.
Remove the compressor and obtain an oil sample from the suction stub. If the oil is not acidic, either a burnout has not occurred or the burnout is so mild that a complete clean-up is not necessary.
If acid level is unacceptable, the system must be cleaned by using the clean-up drier method.
CAUTION
DO NOT ALLOW THE SLUDGE OR OIL TO CONTACT THE SKIN, SEVERE BURNS MAY RESULT.
NOTE: Goodman does NOT approve the flushing method using R-11 refrigerant.
Suction Line Drier Clean-Up Method
The POE oils used with R410A refrigerant is an excellent sol­vent. In the case of a burnout, the POE oils will remove any burnout residue left in the system. If not captured by the refrig­erant filter, they will collect in the compressor or other system components, causing a failure of the replacement compressor and/or spread contaminants throughout the system, damag­ing additional components.
Install a suction line filter drier. This drier should be installed as close to the compressor suction fitting as possible. The filter must be accessible and be rechecked for a pressure drop after the system has operated for a time. It may be necessary to use new tubing and form as required.
NOTE: At least twelve (12) inches of the suction line immedi­ately out of the compressor stub must be discarded due to burned residue and contaminates.
1. Remove the liquid line drier and expansion valve.
2. Purge all remaining components with dry nitrogen or car­bon dioxide until clean.
3 Install new components
4. Braze all joints, leak test, evacuate, and recharge system.
5. Start up the unit and record the pressure drop across the drier.
6. Continue to run the system for a minimum of twelve (12) hours and recheck the pressure drop across the drier. Pres­sure drop should not exceed 6 PSIG.
7. Continue to run the system for several days, repeatedly checking pressure drop across the suction line drier. If the pressure drop never exceeds the 6 PSIG, the drier has trapped the contaminants. Remove the suction line drier from the system.
8. If the pressure drop becomes greater, then it must be re­placed and steps 5 through 9 repeated until it does not exceed 6 PSIG.
NOTICE: Regardless, the cause for burnout must be deter­mined and corrected before the new compressor is started.
including liquid line drier.
S-122 REVERSING VALVE REPLACEMENT
Remove the refrigerant charge from the system. When brazing a reversing valve into the system, it is of ex-
treme importance that the temperature of the valve does not exceed 250°F. at any time.
Wrap the reversing valve with a large rag saturated with water. "Re-wet" the rag and thoroughly cool the valve after each braz­ing operation of the four joints involved. The wet rag around the reversing valve will eliminate conduction of heat to the valve body when brazing the line connection.
The use of a wet rag sometimes can be a nuisance. There are commercial grades of heat absorbing paste that may be sub­stituted.
After the valve has been installed, leak test, evacuate and re­charge.
40
Page 41
SERVICING
S-200 CHECKING EXTERNAL STATIC PRESSURE
The minimum and maximum allowable duct static pressure is found in the Technical Information Manual.
Too great of an external static pressure will result in insuffi­cient air that can cause icing of the coil, whereas too much air can cause poor humidity control, and condensate to be pulled off the evaporator coil causing condensate leakage. Too much air can cause motor overloading and in many cases this con­stitutes a poorly designed system. To determine proper air movement, proceed as follows:
1. Using a draft gauge (inclined manometer) measure the static pressure of the return duct at the inlet of the unit, (Negative Pressure).
S-201 CHECKING TEMPERATURE RISE
Temperature rise is related to the BTUH output of the unit and the amount of air (CFM) circulated over the indoor coil.
All units are designed for a given range of temperature increase. This is the temperature of the air leaving the unit minus the temperature of the air entering the unit.
The more air (CFM) being delivered through a given unit the less the rise will be; so the less air (CFM) being delivered, the greater the rise. The temperature rise should be adjusted in accordance to a given unit specifications and its external static pressure.
1. Take entering and leaving air temperatures.
2. Select the proper speed tap from the unit's blower perfor­mance data in the Technical Manual for the specific unit.
3. Take motor amperage draw to determine that the motor is not overloaded during adjustments.
Supply
Return
Total External Static
2. Measure the static pressure of the supply duct, (Positive Pressure).
3. Add the two readings together.
NOTE: Both readings may be taken simultaneously and read directly on the manometer as shown in the illustration above, if so desired.
4. Consult proper table for quantity of air.
If the external static pressure exceeds the minimum or maxi­mum allowable statics, check for closed dampers, dirty filters, undersized or poorly laid out ductwork.
T
SUPPLY
T
RETURN
RISE = SUPPLY -TRETURN
Checking Temperature Rise
T
41
Page 42
WIRING DIAGRAMS
PACKAGE SYSTE M WIRING DIAGRAM - 1 STAGE ELECT RIC HEAT
SEE NOTE 1
#18 GAUGE 7 WIRE
REQUIRED FOR
HEAT PUMPS
ROOM THERMOSTAT
YO
CW1GRE
BR
PACKAGE UNIT
LOW VOLTAG E
JUNCTION BOX
W
R Y
G
O
YELLOW
GREEN
ORANGE
WHITE
R
Y
G O
R
TYPICAL HP
BL
BL
BLUE
BL
12
OUTDOOR THERMOSTAT
CLOSE ON TEMPERATURE FALL
PACKAGE SYSTE M WIRING DI AGRAM - 2 STAGE ELECTRIC HEAT
ABOVE 10 KW
RED
HIGH VOLTAGE!
DISCONNECT ALL POWER BEFORE SERVICING OR INSTALLING THIS
UNIT. MULTIPLE POWER SOURCES MAY BE PRESENT. FAILURE TO
SEE NOTE 1
#18 GAUGE 8 WIRE
FOR HEAT PUMPS
DO SO MAY CAUSE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH.
SEE NOT E 2
ROOM THERMOSTAT
W2 C RYO W1G E
PACKAGE UNIT LOW VOLTAG E
JUNCTION BOX
RED
R Y
G O
BR
W
R
BL
R Y
G
O
W
BR
BL
YELLOW GREEN ORANGE
WHITE
BROWN
BLUE
12
OUTDOOR TH ERM OSTAT
CLOSE ON TEMPE RA TU RE FA LL
TYPICAL HP
NOTES:
1) "O" and "E" us ed on heat pumps only.
2) Connect wire from terminal #1 on outdoor thermostat to the white wire on package uni ts if sing l e stage indoor ther m ostat is used.
Color Codes
R - Red Y - Yellow BL - Blue BR - Brown O - Orange W - White G - Green
42
OT18-60A OUTDOOR THERMOSTAT
Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.
Page 43
WIRING DIAGRAMS
PACKAGE SYSTEM WIRING DIAGRAM - HEAT PUMPS ONLY!
TWO-STAGE ELECTRIC HEAT ABOVE 10 kW
TYPICAL H/P
ROOM THERMOSTAT
W2 C RYO W1G E
#18 GAUGE 8 WIRE
PACKAGE HE AT PUMP
OUTDOO R TH ERMOSTAT #2 (IF USED, SEE NOTE 1)
R
BL
12
Y
3
12
OUTDOOR THERMOSTAT #1
CLOSE ON TEMPERATURE FALL
BL
W
BR
BL
R
Y G
O
R Y
G
O
W
BR
BL
LOW VOLT AGE JUNCTI ON BOX
RED
YELLOW
GREEN
ORANGE
WHITE
BROWN
BLUE
HIGH VOLTAGE!
For outdoor temperatures below 0° F with 50% or higher relative humidity, set outdoor thermostat at 0° F
DISCONNECT ALL POWER BEFORE SERVICING OR INSTALLING THIS
UNIT. MULTIPLE POWER SOURCES MAY BE PRESENT. FAILURE TO
DO SO MAY CAUSE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH.
NOTE 1: OT18 #2 CAN BE CONNECTED BETWEEN W2 OF THERMOSTAT AND BROWN WIRE IF DESIRED.
OT18-60A OUTDOOR THERMOSTAT
Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.
COLOR CODES R --RED Y --YELLOW BL-BLUE BR-BROWN O --ORANGE W -WHITE G --GREEN
43
Page 44
WIRING DIAGRAMS
*PC/*PH[13-14]H41*
BK
L1 L2
FL
BK
HTR1
M1
R
M2
BK
FL
FL
TL
HTR1
R
BK
BK
R
M1M2M3
R
M4
PU
BL
W
R
BK
BK
R
TL
BK
BL
W
PU
BK
R
PLM
1
2 3
4 5 6 7 8
TL
HTR2
R
9
ONE (1) ELEMENT ROWS TWO (2) ELEMENT ROWS
L2L1
BK
R
PLM
1 2 3
4 5 6 7 8 9
HIGH VOLTAGE!
DISCONNECT ALL POWER BEFORE SERVICING OR INSTALLING THIS
UNIT. MULTIPLE POWER SOURCES MAY BE PRESENT. FAILURE TO
5 KW
10 KW
FL
FL
FL FL FL
BL
Y
BK
BK
BK
R
PLM
BK
1
R
BL
BR
2 3
4
5 6
R
BK
Y
PU
BL
M1 M2
R2
W
7 8 9
TL
HTR1
FL
TL
HTR2
FL
HTR3
TL
R
Y
BK
M1
R
DO SO MAY CAUSE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH.
BK
BK
M2
M3 M4
R1
R
Y R
HTR1
HTR2 HTR3
HTR4
BK
M1 M2
R
TL TL TL
TL
R
M3
M4
R1
Y
R
PU
BL
BK
M5 M6
BL
Y
BK
R
BL
M7 M8
R2
W
BK
R
BL BR
PLM
1 2 3 4 5 6 7 8 9
44
L1
L2 L1 L2
THREE (3) ELEMENT ROWS FOUR (4) EL EMENT ROWS
L2L1 L1 L2
15 KW
20 KW
SINGLE PHASE HKR** HEAT KIT
Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.
Page 45
WIRING DIAGRAMS
*PC/*PH[13-14]H41*
HIGH VOLTAGE!
DISCONNECT ALL POWER BEFORE SERVICING OR INSTALLING THIS
UNIT. MULTIPLE POWER SOURCES MAY BE PRESENT. FAILURE TO
DO SO MAY CAUSE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH.
PCE* ECONOMIZER FOR *PC/*PH****H41*
Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.
45
Page 46
WIRING DIAGRAMS
GR
TO CONTROL BOX
B
A
SEE NOTES 1 & 2
BK
PU/BK-3
CCB
GR
B
B
A
TO ELECTRIC HEAT
A
BK
BK
BK-3
BK-3
BK
BK
BK
BK
GR
GR
COLOR CODE
BK --------------- BLACK
GR---------------- GREEN
BR --------------- BROWN
PU --------------- PURPLE
WH -------------- WHITE
WIRING CODE
FACTORY WIR ING
HIGH VOLTAGE
OPTION AL HIGH VOLTAGE
FIELD WIRING
HIGH VOLTAGE
0140G02544-A
YL --------------- YELLOW
46
HIGH VOLTAGE!
DISCONNECT ALL POWER BEFORE SERVICING OR INSTALLING THIS
UNIT. MULTIPLE POWER SOURCES MAY BE PRESENT. FAILURE TO
A
DO SO MAY CAUSE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH.
BK
B
BK
208 / 240 / 1 / 60
SPB
GR
GR
NOTES:
1. FOR APC & GPC UNITS: A = L1 / B = L2
FOR APH & GPH UNITS: A = L2 / B = L1
SPK* - SINGLE POINT WIRING KIT
Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.
D
LEGEN
CCB - COMPRESSOR
CIRCUIT BREAKER
2. 45, 40, 35, & 30 AMP BREAKERS WILL
HAVE A PURPLE WIRE. 50 AND 60
AMP BREAKERS WILL HAVE BLACK
WIRE LA BELED WITH A #3
SPB - SINGLE POINT BLOCK
Page 47
WIRING DIAGRAMS
APC14[24-48]H41E*
GPC14[30/32/48]H41E* / GPC14[36]H41D*
BK
PU
BL
GR
C L G N
1 2 3
SEE NOTE 2
4 5
WH
EM
PU
BK
BK
1
2
208
C
TR
24V
BL
NOTE #3
PU
3
240
BL
RD
BL
RD
RD
BK
BK
YL
GR
RD
PU
T2
L2
C
L1
T1
SEE NOTE 5
GND
RD
BK
2 0 8
­2 4 0
/
1
/
60
YL
YL
BR BL
YL RD GR WH
LVJB
RD
BR
BL
H
YL
C
RCCF
F
PU
SA (IF USED)SEE NOTE 4
YL
GR
WH
RD
WH
PLF
3
562 41
WH
GR
9
BR
8 7
BR
BK
RD
BK
PU
BR
CM
YL
BK
S
CR
COMP
Y R G W1
W2 C
++
CONTROL BOX
T H E R M O S T A T
HIGH VOLTAGE!
DISCONNECT ALL POWER BEFORE SERVICING OR INSTALLING THIS
UNIT. MULTIPLE POWER SOURCES MAY BE PRESENT. FAILURE TO
L1
SUPPLYVOLTAGE
208-240/1/60
T2
H
NOTE #4
208-240
C
C
RCCF
F
CM
2
IF USED
G
R
COMP
C
S
S.A.
L
NOTE #3
3 1
C
T1
NOTE #2
N
EM
DO SO MAY CAUSE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH.
L2
TR
24V
C
1
EM
SEE NOTE#2
2 3
4 5 6
PLF
C
R W2 W1 Y G C
THERMOSTAT
++
COMPONENT LEGEND
BLOWER INTERLOCKRELAY
BR
CONTACTOR
C CH
CRACKCASEHEATER
CM
CONDENSERMOTOR
COMP
COMPRESSOR ELECTRONIC BLOWER TIME DELAY RELAY
EBTDR
EVAPORATORMOTOR
EM FC
FAN CAPACITOR
GND
EQUIPMENTGROUND
LVJB
LOW VOLTAGE JUNCTION BOX FEMALE PLUG / CONNECTOR
PLF
RUN CAPACITOR FOR
RCCF
COMPRESSOR ANDFAN
SA
START ASSIST
TR
TRANSFORM ER
JUNCTION TERMINAL
INTERNAL TO
INTEGRATED CONTROL
PLUG CONNECTION
SWITCH (PRESS.)
OVERCURRENT
PROT. DEVICE
NOTES :
1. REPLAC EMENT W IRE MUST BE SAME SIZE AND TYPE INSULATION AS ORIGINAL (AT LEAST 105°C) USE COP PER CONDUCTOR ONLY.
2. TO CHANGE EVAPORATOR MOTOR SPEED REPLACE LEAD ON EBT DR "COM" WITH LEAD
ON EBTDR "M1" OR "M2"
3. FOR 208 VOLT TRANS FORMER OPERATION MOVE PURPLE WIRES FROM TERMINAL 3
TERMINAL 2 ON TRANSFORMER.
4. START ASSIST FACTOR EQUIPED WHEN REQUIRED
5. USE COPPER COND UCTORS ONLY
++ USE N.E.C. CLASS 2 W IRE
SEE UNITRATING PLATE FOR TYPEAND SIZ E
OF OVER CURRENT PROTECTION
EQUIPMENT GROUND FIELD GROUND
FIELD SPLICE SWITCH (TEMP) IGNITER
LINE VOLTAGE LOW VOLTAGE OPTIONAL HIGH VOLTAGE
HIGH VOLTAGE LOW VOLTAGE
208-240/1/60 0140G00407-B
Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.
FA
CTORYWIRING
FIELDWIRING
WIRE CODE BK BLACK BL BLUE BR BROWN GR GREEN OR ORANGE PU PURPLE RD RED WH WHITE YL YELLOW
47
Page 48
WIRING DIAGRAMS
*PC14[60]H41E*
HIGH VOLTAGE!
DISCONNECT ALL POWER BEFORE SERVICING OR INSTALLING THIS
UNIT. MULTIPLE POWER SOURCES MAY BE PRESENT. FAILURE TO
PU
BK
BK
1
2
C
208
TR
24V
BL
BK
NOTE #3
PU
3
240
BL
RD
BL
RD
RD
BK
BK
YL
GR
RD
PU
BK
L2
T2
C
L1
T1
SEENOTE 5
GND
RD
2 0 8
­2 4 0
/
1
/
60
YL
PU
YL
BR BL
IGNITER
YL
RD GR WH
LVJB
HPS
BK BLACK BL BLUE BR BROWN GR GREEN OR ORANGE PU PURPLE RD RED WH WHITE YL YELLOW
ACTORYWIRING
F
LINE VOLTAGE LOW VOLTAGE
OPTIONAL HIGH
VOLTAGE
FIELDWIRING
HIGH VOLTAGE LOW VOLTAGE
WIRECODE
RD
BR
BL
H
BL
YL
C
RCCF
F
GR
PU
SA (IF USED) SEE NOTE 4
YL
GR C L G N 1 2 3
SEENOTE2
WH
5
4
WH
EM
L1
SUPPLY VOLTAGE
208-240/1/60
T1
EM
G
C
IFUSED
R
COMP
S
S.A.
NOTE#3
C
NOTE#2
N
DO SO MAY CAUSE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH.
T2
C
RCCF
H
F
NOTE#4
L
208-240
2
3 1
RD
L2
C
CM
TR
24V
WH
WH
PLF
9
3
8
562 41
7
BR C CH CM COMP EBTDR EM FC GND LVJB PLF RCCF
SA TR HPS
INTEGRA TEDCONTROL
PLUGCONNEC TION
GR
BR
BR
BK
RD
BK
BR
PU
CM
COMPONENT
LEG END
YL
BK
S
CR
COMP
BLOWERINTERLOCKRELAY CONTACTOR CRACKCASE HEATER CONDENSER MOTOR COMPRESSOR ELECTRO N ICBLOWER TIME DELAY RELAY EVAPORATOR MOTOR FANCAPACITOR EQUIPMENT GROUND LOW VOLTAGE JUNCTION BOX FEMALE PLUG /CONNECTOR RUN CAPACITOR FOR COMPRESSORAND FAN START ASSIST TRANSFORMER HIGH PRESSURE SWITCH
JUNCTION TERMINAL
INTERNALTO
SWITCH (PRESS.)
OVERCURRENT
PROT. DEVICE
EQUIPMENT GROUND FIELDGROUND
FIELD SPLICE SWITCH (TEMP)
Y R G W1
W2 C
++
CONTROL BOX
T H E R M O S T A T
48
C
1
PLF
EM
SEENOTE #2
2 3
4 5 6
HPS
R W2 W1 Y G C
THERMOSTAT
++
C
OTES:
N
1. REPLACEMENTWIRE MUST BE SAMESIZE AN DTYPEINSULATIONAS OR IG INAL (ATLEAST 105°C )USECOPPERCON DUCTOR ONLY.
2. TOCHANG EEVAPO RATO RMOTOR SPE E DREPLACELEAD ONEBTDR"COM" WITH LEAD O NEBT DR"M1"OR "M2"
3. FOR 208 VOLTTRANSFORMEROPERATIONMOVEPURPLEWIRES FROM TERMINAL 3 TERMINAL 2 ON TRANSFORMER.
4. STAR TASSIST FACT OREQUIPEDWHENREQUIR ED
5. USECOPPERCONDUCTORS ONL Y
++ USE N.E.C.CLASS2 WIRE
SEE UNITRATING PLATE FOR TYPE AND SIZE
OF OVER CURRENT PROTECTION
208-240/1/60 0140G00871-C
Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.
Page 49
WIRING DIAGRAMS
*PH14[24-36]DC / *PH14[42-60]EB
HIGH VOLTAGE!
DISCONNECT ALL POWER BEFORE SERVICING OR INSTALLING THIS
UNIT. MULTIPLE POWER SOURCES MAY BE PRESENT. FAILURE TO
SEE NOTE 8
SEE NOTE 7
BK
PU
L2
C
L1
P
U
B
K
SEE NO TE 5
P
U
B
K
GND
LVJB
YL RD GR WH OR BR
BL
P
U
R
D
B
K
R
C
H
S
B
K
Y R G
W1 O W2 C
++
SEE NOTE 6
D
2 0 8
­2 4 0
/
1
/
60
T H E R M O S T A T
C
H
B
K
R
G
SEE NOTE6
CTORY WIRING
FA
LINE VOLTAGE LOW VOLTAGE OPTIONAL HIGH VOLTAGE
FIELD WIRING
HIGH VOLTAGE LOW VOLTAGE
WIRE CODE BK BLACK BL BLUE BR BROWN GR GREEN OR ORANGE PU PURPLE RD RED WH WHITE YL YELLOW
EQUIPMENT GROUND FIELD GROUND
FIELD SPLICE SWITCH (TEMP)
0140G01640-C
BK
3
2
208
240
TR
24V
F
SA SEE NOTE 4
/
B
L
BL
P
HPS
B
K
SEE NOTE 3
B
L
BL
RD
GR
W
H
W
3
562
41
/
P
L
K
PU
RD
RD
P
U
H
PLF
9
8
BR
7
BR
BK
PU
P
U
Y
L
BR
BK
PU
CM
YL
PU
BL
T2
RD
T1
BK
BK
PU
OR
RD
GR
Y
L
RD
BK
S
CR
COM P
BK
PU
GR
SEE NOTE 2
Y
L
BL
C
1 2 3
Y
Y
YL
L G N
YL/PK
L
G
L
B
L
H
H
W
RCCF
CONTROL BOX
PU
1
C
BL
P
U
O
R
Y
L
RD
BR
H
C
RDYL
R
D
LPS
/
Y
P
L
K
R
D
R
D
B
R
R
C D
HVD R
DF1
Y
L
4 5
EM
L
P
C
C
C
R
CCR
LVDR
CNT
0-RV
C-RV
DFT
DF2
R-PS1
R-DFT
R
R
D
R
H
W
GR
U
P
U
O
0
R
0
B
K
W
Y
Y
PS2
P
D
D
R
DFT
W
B
K
H
W
B
K
Y
L
U
D
B
K
B
K
RVC
COMPONENT LEGEND
C
CONTACTOR
CCR
COMPRESSOR CONTACTOR RELAY
CH
L1
C
O
E
O
L
P
2
N
E
O
T
S
E
SEE NOTE2
N
DO SO MAY CAUSE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH.
R
R
4 5
6
F
L
P
Y
N
L 7
E
EM
G
V
C
T1
COMPC
S.A.
SEE NOTE 4
CHS
SEENOTE3
R
O
SUPPLYVOLTAGE
208-240/1/60
T2
R
RCCF
S
H
SEENOTE6
L
208-240
2
1 3
4
2
O
C
-
-
R
R
V
V
W
H
P
R
O
1
2
W
W
H
E
T
R
O
M
++
C
DF1
C
HVDR
F
CM
CH
TR
V
R
T
-
D
F
D
C
R
-
Y
P
S
P
L
S
S
2
1
Y
G
A
T
T
S
L2
DF2
T
D
F
T
D
F
C
2
P
S
1
E
C
C
N
T
3
C
M
N
E
E
O
T
S
E
C
NOTES:
1. REPLACEMENT WIREMUSTBESAMESIZEANDTYPEINSULATIONAS ORIGINAL(AT LEAST105°C)USE COPPER CONDUCTORONLY.
2
2. TOCHANGE EVAPORATORMOTORSPEEDMOVEWHITEANDYELLOW LEADSFROM EM"2" AND "3"TO "4"AND "5". IF BOTH LEADS ARE
3 FOR 208VOLTTRANSFORMEROPERATIONMOVEPURPLEWIRES
4. STARTASSISTFACTORY EQUIPPED WHENREQUIRED
5. USE COPPER CONDU CTORSONLY
6. CRANKCASE HEATER AND CRANKCASEHEATER SWITCH FACTORY
7. DOUBLEPOLE CONTACTOR SHOWN. SINGLE POLE CONTACTOR COULDBEFACTO RYEQUI PPE DASANALTERN AT ECON FIGURATION.
8. COMM ONSIDE OF CONTACTOR CAN NOT BE GROUNDED OR CONNECTEDTO ANY OTHER COMM ON(24V).
CRACKCASEHEATER
CHS
CRACKCASEHEATERSWITCH
CM
CONDENSER MOTOR
COMP
COMPRESSOR
DC
DEFROSTCONTROL
DFT
DEFROST THERMOSTAT
EM
EVAPORATOR MOTOR
GND
EQUIPMENT GROUN D
HVDR
HIGH VO LTAG EDEFROSTRELAY
LPS
LOWPRESSURE SWITCH
LVDR
LOW VOLTAGE DEFROST RELAY
LVJB
LOW VOLTAGE JUNC TION BOX
PLF
FEMALEPLUG / C ONNECTOR
RVC
REVERSING VALVE COIL
RCCF
RUNCAPACITORFOR COMPRESSOR ANDFAN
SA
STAR T ASSIS T
TR
TRA NSFOR MER
HPS
HIGH PRESSURE SWITC H
JUNCTION TERMINAL
INTERNAL TO
INTEGRATED CONTROL
PLUG CONNECTION
IGNITER
SWITCH (PRESS.)
OVERCURRENT PROT. DEVICE
ENERGIZED, THE HIGHER SPEED SETTING IS USED. FROM TERMINAL 3 TO TERMINAL 2 ON TRANSFORMER.
++
USEN.E.C. CLASS 2WIRE
EQUIPPED WHEN REQUIRED.
SEE UNIT RATING PLATE FOR TYPE AND SIZE
OF OVER CURRENT PROTECTION
Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.
49
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