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SS-GMEC80/GCEC80

www.goodmanmfg.com

12/21

Supersedes 2/21

Two-Stage, Multi-Speed ECM 

Gas Furnace

80% AFUE

GMEC80 / GCEC80 

Heating Input:   40,000–120,000 BTU/h

Contents

Nomenclature ........................................ 2

Product Specifications

 ........................... 3

Dimensions

 ............................................ 5

Accessories

 ............................................ 6

Airflow Data

 ........................................... 7

Wiring Diagram  ................................... 24 

Standard Features

• 

Two-stage gas valve provides quiet, 

 

economical heating 

• 

Efficient and quiet multi-speed ECM circulator motor

•  SureStart® Silicon Nitride igniter  

designed for long igniter life

• 

Self-diagnostic control board 

• 

Low constant fan speed circulates air 

 

throughout the home 

• 

Quiet, two-speed induced draft blower

• 

California Low NOx emissions-compliant 

 

models available

• 

Can no longer be installed in California’s 

South Coast Air Quality Management District 

(SCAQMD) on or after October 1, 2019.

 

• 

AHRI Certified; ETL Listed

Cabinet Features

• 

Fully insulated, heavy-gauge steel cabinet 

with durable baked-enamel finish

• 

Multi-position installation: 

 

GMEC80: upflow, horizontal left or right

 

GCEC80: downflow, horizontal left or right

• 

Removable bottom for side- or 

 

bottom-return applications

• 

Convenient left or right connection 

 

for gas/electric service

• 

Cabinet air leakage ≤ 2%

• 

Coil and furnace fit flush 

for most installations

* Complete warranty details available from your local dealer or at www.goodmanmfg.com. To receive 

the Lifetime Heat Exchanger Limited Warranty (good for as long as you own your home), 10-Year 

Unit Replacement Limited Warranty and 10-Year Parts Limited Warranty, online registration must be 

completed within 60 days of installation. Online registration is not required in California or Québec.

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Summary of Contents for GCEC80

Page 1: ...anagement District SCAQMD on or after October 1 2019 AHRI Certified ETL Listed Cabinet Features Fully insulated heavy gauge steel cabinet with durable baked enamel finish Multi position installation G...

Page 2: ...zontal N Natural Gas C Downflow Horizontal X Low NOx Motor Cabinet Width V Variable Speed ECM ComfortBridge A 14 C 21 E Multi Speed ECM S Single Speed B 17 D 24 Gas Valve Maximum CFM M Modulating S Si...

Page 3: ...Blower Size D x W 10 x 6 10 x 6 10 x 8 10 x 8 10 x 10 10 x 10 10 x 10 11 x 10 10 x 10 10 x 10 11 x 10 Horsepower RPM 1 2 1 2 1 2 1 2 3 4 3 4 3 4 3 4 3 4 1 1 Speed 5 5 5 5 5 5 5 5 5 5 5 Vent Diameter 4...

Page 4: ...nt Diameter 4 4 4 4 4 4 No of Burners 3 3 3 4 4 5 Electrical Data Min Circuit Ampacity 8 7 8 7 8 7 12 45 15 32 15 32 Max Overcurrent Device amps 15 15 15 15 20 20 Ship Weight lbs 105 107 107 121 129 1...

Page 5: ...essibility clearances are greater Refer to the appropriate USA and Canadian codes In the USA the National Fuel Gas Code NFPA 54 ANSI Z223 1 In Canada the Canada National Standard of Canada CAN CSA B14...

Page 6: ...C800603A 14 12 GCEC800603B 17 16 GCEC800804B 17 16 GCEC800805C 21 19 GCEC801005C 21 19 Model Description GMEC80 0403A GMEC80 0603B GMEC80 0803B GMEC80 0804B GMEC80 0804C GMEC80 0805C GMEC80 0805D GMEC...

Page 7: ...S2 3 S2 4 STATIC 0 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 T STAT CALL CFM CFM CFM CFM CFM CFM CFM CFM OFF OFF OFF G 591 568 518 463 411 355 300 243 ON OFF OFF G 1104 1058 1020 1022 1013 981 952 918 ON ON OFF G...

Page 8: ...3 S2 4 STATIC 0 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 T STAT CALL CFM CFM CFM CFM CFM CFM CFM CFM OFF OFF OFF G 716 647 592 541 478 420 368 296 ON OFF OFF G 1054 1002 951 906 861 820 797 754 ON ON OFF G 656...

Page 9: ...S2 4 STATIC 0 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 T STAT CALL CFM CFM CFM CFM CFM CFM CFM CFM OFF OFF OFF G 1025 850 754 670 594 520 443 366 ON OFF OFF G 1258 1179 1115 1030 954 885 814 776 ON ON OFF G 103...

Page 10: ...3 S2 4 STATIC 0 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 T STAT CALL CFM CFM CFM CFM CFM CFM CFM CFM OFF OFF OFF G 1040 973 936 918 859 805 770 720 ON OFF OFF G 1401 1366 1320 1278 1236 1194 1153 1112 ON ON OFF...

Page 11: ...4 STATIC 0 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 T STAT CALL CFM CFM CFM CFM CFM CFM CFM CFM OFF OFF OFF G 1175 1098 1024 947 883 823 764 703 ON OFF OFF G 1547 1506 1474 1442 1390 1332 1273 1222 ON ON OFF G 1...

Page 12: ...0 8 T STAT CALL CFM CFM CFM CFM CFM CFM CFM CFM OFF OFF OFF G 1626 1574 1524 1479 1433 1410 1400 1358 ON OFF OFF G 2169 2116 2070 2038 2003 1970 1933 1897 ON ON OFF G 803 719 631 540 471 337 298 265...

Page 13: ...5 0 6 0 7 0 8 T STAT CALL CFM CFM CFM CFM CFM CFM CFM CFM OFF OFF OFF G 553 496 436 372 308 252 198 N A ON OFF OFF G 750 703 651 600 553 504 456 409 ON ON OFF G 923 865 824 802 759 715 674 631 OFF ON...

Page 14: ...S2 3 S2 4 STATIC 0 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 T STAT CALL CFM CFM CFM CFM CFM CFM CFM CFM OFF OFF OFF G 1079 1019 975 934 890 850 808 791 ON OFF OFF G 1328 1274 1231 1191 1155 1114 1081 1047 ON ON...

Page 15: ...4 STATIC 0 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 T STAT CALL CFM CFM CFM CFM CFM CFM CFM CFM OFF OFF OFF G 1155 1100 1048 1002 952 907 861 816 ON OFF OFF G 1418 1376 1333 1288 1248 1206 1163 1124 ON ON OFF G...

Page 16: ...6 0 7 0 8 T STAT CALL CFM CFM CFM CFM CFM CFM CFM CFM OFF OFF OFF G 1133 1009 956 903 856 804 774 722 ON OFF OFF G 1402 1358 1317 1274 1234 1195 1154 1113 ON ON OFF G 706 631 563 486 404 338 280 232...

Page 17: ...S2 4 STATIC 0 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 T STAT CALL CFM CFM CFM CFM CFM CFM CFM CFM OFF OFF OFF G 1130 1071 1027 973 922 870 817 787 ON OFF OFF G 1408 1369 1319 1282 1242 1193 1150 1109 ON ON OFF...

Page 18: ...5 0 6 0 7 0 8 T STAT CALL CFM CFM CFM CFM CFM CFM CFM CFM OFF OFF OFF G 1352 1281 1218 1152 1076 1026 964 901 ON OFF OFF G 1669 1595 1527 1463 1407 1363 1336 1289 ON ON OFF G 822 754 652 566 499 428...

Page 19: ...S2 4 STATIC 0 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 T STAT CALL CFM CFM CFM CFM CFM CFM CFM CFM OFF OFF OFF G 1450 1382 1314 1243 1181 1115 1047 973 ON OFF OFF G 1886 1822 1758 1701 1646 1591 1535 1482 ON ON...

Page 20: ...7 0 8 T STAT CALL CFM CFM CFM CFM CFM CFM CFM CFM OFF OFF OFF G 1436 1402 1362 1313 1244 1182 1132 1079 ON OFF OFF G 1782 1744 1715 1700 1660 1619 1579 1510 ON ON OFF G 1171 884 667 576 495 399 338 3...

Page 21: ...0 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 T STAT CALL CFM CFM CFM CFM CFM CFM CFM CFM OFF OFF OFF G 1424 1378 1330 1274 1226 1172 1119 1071 ON OFF OFF G 1810 1764 1718 1682 1633 1596 1549 1510 ON ON OFF G 789...

Page 22: ...0 8 T STAT CALL CFM CFM CFM CFM CFM CFM CFM CFM OFF OFF OFF G 1381 1324 1274 1220 1164 1137 1109 1049 ON OFF OFF G 1831 1770 1723 1677 1630 1590 1547 1506 ON ON OFF G 815 742 662 590 503 422 362 299...

Page 23: ...UTPUT vs TEMPERATURE RISE CHART TEMPERATURE RISE 600 CFM 700 900 1000 1100 1200 1400 1600 1800 2000 2200 2400 CFM FORMULAS BTU OUTPUT CFM x 1 08 x RISE RISE BTU OUTPUT 1 08 CFM 800 Temperature Rise Ou...

Page 24: ...RESSURE OR WH SERVICING WIRING EQUIPMENT GND INTERNAL TO SWITCH PRESSURE HIGH FIRE PROT DEVICE INTEGRATED CONTROL PK PU PLUG CONNECTION L N BK C DOOR OPEN OPEN WHEN DOOR SWITCH COMPARTMENT BLOWER SWIT...

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