Specifications

ManualsBrandsGoodman ManualsCooling & Air Quality100,000 BTU 80% AFUE Multi-Speed Two Stage Gas Furnace Low NOx California Model - Upflow/Horizontal

SS-GMEC80/GCEC80 www.goodmanmfg.com 8/19

Supersedes 4/19

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

• 



• 





• 



• 



• 

• 











Summary of content (24 pages)

PAGE 1
GMEC80 / GCEC80 Two-Stage, Multi-Speed ECM Gas Furnace 80% AFUE Heating Input: 40,000–120,000 BTU/h Contents Nomenclature......................................... 2 Product Specifications............................ 3 Dimensions............................................. 5 Accessories............................................. 6 Airflow Data............................................ 7 Wiring Diagram ....................................
PAGE 2
Nomenclature G M E C 80 040 4 C * ** 1 2 3 4 5,6 7,8,9 10 11 12 13,14 Brand Engineering G - Goodman® Brand Major /Minor Revisions * Not used for inventory control.
PAGE 3
Specifications GMEC80 0403A* GMEC80 0603A* GMEC80 0603B* GMEC80 0803B* GMEC80 0804B* GMEC80 0804C* GMEC80 0805C* GMEC80 0805D* GMEC80 1004C* GMEC80 1005C* GMEC80 1205D* 40,000 60,000 60,000 80,000 80,000 80,000 80,000 80,000 100,000 100,000 120,000 Natural Gas 32,000 48,000 48,000 64,000 64,000 64,000 64,000 64,000 80,000 80,000 96,000 LP Gas 32,000 48,000 48,000 64,000 64,000 64,000 64,000 64,000 80,000 80,000 96,000 28,000 42,000 42,000 56,000 56,000 56,
PAGE 4
Specifications GCEC80 0403A* GCEC80 0603A* GCEC80 0603B* GCEC80 0804B* GCEC80 0805C* GCEC80 1005C* 40,000 60,000 60,000 80,000 80,000 100,000 Natural Gas 32,000 48,000 48,000 64,000 64,000 80,000 LP Gas 32,000 48,000 48,000 64,000 64,000 80,000 28,000 42,000 42,000 56,000 56,000 70,000 Natural Gas 22,400 33,600 33,600 44,800 44,800 56,000 LP Gas 22,400 33,600 33,600 44,800 44,800 56,000 80 80 80 80 80 80 Heating Capacity High Fire Input (BTU/h)¹ High Fire
PAGE 5
GMEC80 Dimensions Alt. Flue Outlet — Horizontal Left 1¾” 17⁄16” A B 19½” ➤ Alternate Gas Inlet ➤ ➤ 33⅜” Alt. Gas Inlet ➤ 27⅞” 20” High-Voltage Inlet 235⁄16” Alt. High Voltage 15” 13¼” Low-Voltage Inlet Alt.
PAGE 6
GCEC80 Dimensions A 28” 19⅝” B High-Voltage Electrical Low-Voltage Electrical 33⅜” Gas Inlet 18⅜” 11⅜” Dimensions Model W D H 14” 28” 33⅜” GCEC800603A* 14” 28” 33⅜” GCEC800603B* 17½” 28” 33⅜” GCEC800804B* 17½” 28” 33⅜” GCEC800805C* 21” 28” 33⅜” GCEC801005C* 21” 28” 33⅜” GCEC800403A* Minimum Clearances to Combustible Materials Sides Rear Front ¹ 1 0 3 Vent ² SW B 6 1 Top 1 Approved for line contact in the horizontal position.
PAGE 7
GCEC800403A* Airflow Data PCBBF139 DIP SWITCHES S1-1, S1-2, S1-3 *CEC800403A* - COOLING STATIC 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.
PAGE 8
GCEC800603A* Airflow Data (cont.) PCBBF139 DIP SWITCHES S1-1, S1-2, S1-3 *CEC800603A*- COOLING STATIC 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.
PAGE 9
GCEC800603B* Airflow Data (cont.) PCBBF139 DIP SWITCHES S1-1, S1-2, S1-3 *CEC800603B* - COOLING STATIC 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.
PAGE 10
GCEC800804B* Airflow Data (cont.) PCBBF139 DIP SWITCHES S1-1, S1-2, S1-3 *CEC800804B* - COOLING STATIC 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.
PAGE 11
*CEC800805C* Airflow Data (cont.) PCBBF139 DIP SWITCHES S1-1, S1-2, S1-3 *CEC800805C* - COOLING STATIC 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.
PAGE 12
**EC801005C* Airflow Data (cont.) PCBBF139 DIP SWITCHES S1-1, S1-2, S1-3 **EC801005C* - COOLING STATIC 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.
PAGE 13
GMEC800403A* Airflow Data (cont.) PCBBF139 DIP SWITCHES S1-1, S1-2, S1-3 *MEC800403A* - COOLING STATIC 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.
PAGE 14
GMEC800603A* Airflow Data (cont.) PCBBF139 DIP SWITCHES S1-1, S1-2, S1-3 *MEC800603A* - COOLING STATIC 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.
PAGE 15
GMEC800603B* Airflow Data (cont.) PCBBF139 DIP SWITCHES S1-1, S1-2, S1-3 *MEC800603B* - COOLING STATIC 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.
PAGE 16
GMEC800803B* Airflow Data (cont.) PCBBF139 DIP SWITCHES S1-1, S1-2, S1-3 *MEC800803B* - COOLING STATIC 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.
PAGE 17
GMEC800804B* Airflow Data (cont.) PCBBF139 DIP SWITCHES S1-1, S1-2, S1-3 *MEC800804B* - COOLING STATIC 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.
PAGE 18
GMEC800804C* Airflow Data (cont.) PCBBF139 DIP SWITCHES S1-1, S1-2, S1-3 *MEC800804C* - COOLING STATIC 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.
PAGE 19
GMEC800805D* Airflow Data (cont.) PCBBF139 DIP SWITCHES S1-1, S1-2, S1-3 *MEC800805D* - COOLING STATIC 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.
PAGE 20
GMEC800805C* Airflow Data (cont.) PCBBF139 DIP SWITCHES S1-1, S1-2, S1-3 *MEC800805C* - COOLING STATIC 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.
PAGE 21
GMEC801004C* Airflow Data (cont.) PCBBF139 DIP SWITCHES S1-1, S1-2, S1-3 *MEC801004C* - COOLING STATIC 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.
PAGE 22
GMEC801205D* Airflow Data (cont.) PCBBF139 DIP SWITCHES S1-1, S1-2, S1-3 *MEC801205D* - COOLING STATIC 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.
PAGE 23
SS-GMEC80/GCEC80 www.goodmanmfg.com 10 20 30 40 50 60 70 30 80 90 100 40 50 60 700 600 CFM 90 100 2000 2200 2400 CFM 1800 1600 1400 OUTPUT BTU/HR x 1000 Output BTU/h x 1,000 80 1200 1100 1000 900 70 800 Formulas FORMULAS 110 120 130 CFM x 1.08 140 BTUBTU/h OUTPUT 1.08 x RISE Output== CFM CFM xx1.08 x Rise BTU OUTPUT RISE = = BTU/H Output ÷ CFM Rise 1.08 BTUBTU OUTPUT TEMPERATURE RISEChart CHART OutputvsVs.
PAGE 24
Wiring Diagram SOME UNITS MAY HAVE 1 ROLL OUT SWITCH OR PK PU 2 1 PU YL LED'S GN BL GY DIAGNOSTIC BR PK S2 S3 BR 1 4 7 10 2 5 8 11 3 6 9 12 PK BR OR YLO Y W1 W2 R G C TWIN N.E.C.