Goodman GMEC80 User manual
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
........................... 3
............................................ 5
............................................ 6
........................................... 7
Wiring Diagram ................................... 24
Standard Features
•
•
• SureStart® Silicon Nitride igniter
•
•
throughout the home
•
•
•
•
Cabinet Features
•
•
•
•
•
•
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2 3
Nomenclature
G M E C 80 040 4 C * **
1 2 3 4 5,6 7,8,9 10 11 12 13,14
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2 3
Specifications
GMEC80
0403A*
0803B*
0804B*
0805D*
1004C*
1005C*
1205D*
AFUE²
Speed 55555555555
33344444556
³
4
•
•
•
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4 5
Specifications
GCEC80
0403A*
GCEC80
0603A*
GCEC80
0603B*
GCEC80
0804B*
GCEC80
0805C*
GCEC80
1005C*
AFUE²
Speed 5 5 5 5 5 5
Vent Diameter²
3 3 3 4 4 5
•
•
•
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4 5
Minimum Clearances to Combustible Materials
B
36
•
•
•
•
GMEC80 Dimensions
28”
A
B
1¾”
33⅜”
235⁄16”
17⁄16”
13¼”
20”
27⅞”
Alt. Gas Inlet
Alt. High Voltage
Alt. Low Voltage
Alternate Gas Inlet
High-Voltage Inlet
Low-Voltage Inlet
➤
19½” ➤
➤
23” ➤
➤
15”
➤
➤
A B
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6 7
GCEC80 Dimensions
A
B
High-Voltage
Electrical
Low-Voltage
Electrical
Gas Inlet
11
⅜”
18
⅜”
19
⅝”
33
⅜”
28
”
Minimum Clearances to Combustible Materials
B
36
A B
GMEC80
0403A*
GMEC80
0603B*
GMEC80
0803B*
GMEC80
0804B*
GMEC80
0804C*
GMEC80
0805C*
GMEC80
0805D*
GMEC80
1005C*
GCEC80
0403A*
GCEC80
0603A*
GCEC80
0603B*
GCEC80
0804B*
GCEC80
0805C*
GCEC80
1005C*
Accessories
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6 7
GCEC800403A* Airflow Data
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8
754 736 565 527
663 647 355
754 736 565 527
663 647 355
754 736 565 527
463 355 243
754 736 565 527
663 647 355
463 355 243
663 647 355
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8
G 463 355 243
G
G663 647 355
G 754 736 565 527
G
G 463 355 243
G 463 355 243
G 463 355 243
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8
35 37 463 45 355 243
W2 27
663 647 32 35 355
W2 27
663 647 32 35 355
W2 754 736 43 565 527
26 754 736 32 565 527
W2 22 23 23 24 24
*DEFAULT
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GCEC800603A* Airflow Data (cont.)
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8
656 532 465
656 532 465
647
754
656 532 465
647
754
754
656 532 465
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8
G 647
G 754
G656 532 465
G
G
G 647
G 647
G 647
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8
43 647 53
W2 42 44 47 52 754
656 47 53 532 465
W2 42 44 47 52 754
656 47 53 532 465
W2 42 44 46
W2
*DEFAULT
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GCEC800603B* Airflow Data (cont.)
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8
235
235
754 443 366
776
235
754 443 366
776
776
235
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8
G 754 443 366
G 776
G 235
G
G
G 754 443 366
G 754 443 366
G 754 443 366
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8
37 754 46 52 443 366
W2 35 43 47 776
54 235
W2 35 43 47 776
54 235
W2 36 45
W2
*DEFAULT
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GCEC800804B* Airflow Data (cont.)
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8
645 334
645 334
645 334
645 334
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8
G
G
G 645 334
G
G
G
G
G
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8
43 44 45
W2 42 43 45 46
53 645 334
W2 42 43 45 46
53 645 334
W2 37
W2
*DEFAULT
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*CEC800805C* Airflow Data (cont.)
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8
667 576
667 576
764
667 576
764
667 576
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8
G 764
G
G 667 576
G
G
G 764
G 764
G 764
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8
35 44 47 764
W2 43
35 47 667 576
W2 43
667 576
W2
W2
*DEFAULT
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0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8
2235
337 265
337 265
2235
337 265
2235
337 265
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8
G
G
G 337 265
G
G2235
G
G
G
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8
32 33 34 35 36
W2 34 35 36 36 37
337 265
W2 34 35 36 36 37
337 265
W2 42 43 44 45
W2 2235
*DEFAULT
**EC801005C* Airflow Data (cont.)
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0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8
674
674
553 436 372 252
553 456
674
553 436 372 252
553 456
553 456
674
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8
G553 436 372 252
G 553 456
G 674
G
G
G553 436 372 252
G553 436 372 252
G553 436 372 252
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8
553 42 436 372 252
W2 42 553 456
22 24 25 26 27 674
W2 42 553 456
22 24 25 26 27 674
W2 26 27
W2
GMEC800403A* Airflow Data (cont.)
*DEFAULT
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GMEC800603A* Airflow Data (cont.)
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8
566
566
566
566
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8
G
G
G 566
G
G
G
G
G
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8
32 33 35
W2 33 35 36 37
46 566
W2 33 35 36 37
46 566
W2 42 44 46
27 32
W2 32 33 34 35 36
*DEFAULT
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GMEC800603B* Airflow Data (cont.)
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8
737 456 252
737 456 252
737 456 252
737 456 252
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8
G
G
G737 456 252
G
G
G
G
G
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8
27 33
W2 32 33 35 36
737 42 456 252
W2 32 33 35 36
737 42 456 252
W2 33 35 36 37
W2
*DEFAULT
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0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8
563 232
563 232
774 722
563 232
774 722
563 232
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8
G 774 722
G
G 563 232
G
G
G 774 722
G 774 722
G 774 722
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8
37 43 46 774 722
W2 42 44 45 47
563 232
W2
563 232
W2
36 37 43
W2 52 54 56
*DEFAULT
GMEC800803B* Airflow Data (cont.)
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GMEC800804B* Airflow Data (cont.)
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8
743 522 432 366
743 522 432 366
743 522 432 366
743 522 432 366
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8
G
G
G743 522 432 366
G
G
G
G
G
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8
37 43 45
W2 42 43 45 46
743 56 522 432 366
W2 42 43 45 46
743 522 432 366
W2
26 27
W2 33 34 35 36 37
*DEFAULT
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0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8
754 652 566 346
754 652 566 346
754 652 566 346
754 652 566 346
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8
G
G
G 754 652 566 346
G
G
G
G
G
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8
32 34 36
W2 36 37 42
754 55 652 566 346
W2 36 37 42
754 55 652 566 346
W2 42 44 46
32 34
W2 32 33 34 35
*DEFAULT
GMEC800804C* Airflow Data (cont.)
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GMEC800805D* Airflow Data (cont.)
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8
2266
772 667
772 667
2266
772 667
2266
772 667
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8
G
G
G 772 667
G
G2266
G
G
G
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8
32 33 35
W2 33 34 35 36
42 46 772 667
W2 33 34 35 36
42 46 772 667
W2 35 37
24 26 27
W2 2266 26 27
*DEFAULT
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0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8
667 576
667 576
667 576
667 576
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8
G
G
G 667 576
G
G
G
G
G
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8
32 33
W2 33 34 35 35 36
35 47 667 576
W2 33 34 35 35 36
35 47 667 576
W2 37
W2
*DEFAULT
GMEC800805C* Airflow Data (cont.)
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