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Goodman Mfg GMS8 33-3/8 GAS FURNACE UNITS manual

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Table of contents for the manual

  • Page 1

    RT6621031r2 November 2013 This manual is to be used by qualified, professionally trained HV AC technicians only . Goodman does not assume any responsibility for property damage or personal injury due to improper service procedures performed by an unqualified person. • Refer to Service Manual RS6612006 for troubleshooting information. • Refer to[...]

  • Page 2

    PRODUCT IDENTIFICA TION 2 The model and manufacturing number are used for positive identification of component parts used in manufacturing. Please use these numbers when requesting service or parts information. WA RNI N G WARNING HIGH VOLTAGE! Disconnect ALL power before servicing or installing this unit. Multiple power sources may be present. Fail[...]

  • Page 3

    3 PRODUCT IDENTIFICA TION The model and manufacturing number are used for positive identification of component parts used in manufacturing. Please use these numbers when requesting service or parts information. GMS80403A*BB GMS80603A*BB GMS80604B*BB GMS80804B*BB GMS80805C*BB GMS81005C*BB GMS81205D*BA The United States Environmental Protection Agenc[...]

  • Page 4

    4 PRODUCT DESIGN NFPA 54/ANSI Z223.1 - latest edition. In Canada, the fur- naces must be vented in accordance with the National Stan- dard of Canada, CAN/CSA B149.1 and CAN/CSA B149.2 - latest editions and amendments. NOTE: The vertical height of the Category I venting system must be at least as great as the horizontal length of the venting system.[...]

  • Page 5

    5 COMPONENT IDENTIFICA TION Upflow/Horizontal 1 Tubular Heat Exchanger 2 Pressure Switch 3 Flue Pipe Connection 4 Induced Draft Blower 5 Gas Line Entrance 6 Gas Valve 7 Rollout Limit 8 Junction Box ? Pressur e Sw itch Tubul ar Heat E xchan g er Fl ue P i pe Co nn e c tion Ga s Li ne E nt ra nce (Alt e rnat e ) Ind uced Dr aft Blow er Ga s Li ne Ent[...]

  • Page 6

    PRODUCT DIMENSIONS 6 GMS8 A lt. Ga s Inlet H i g h Vol t ag e In le t L o w V oltage A lt. Ga s Inlet A lt. High V o lt ag e Alt. LowV oltage MOD E L A B G M S 8 04 03 A ** * G M S 8 06 03 A ** * G M S 8 06 04 B * ** G M S 8 08 04 B * ** G M S 8 08 05 C * ** G M S 8 10 05 C * ** G M S 8 12 05 D * ** G M S814 05D N ** 24 - 1/ 2 23 21 19 - 1/ 2 14 12[...]

  • Page 7

    7 PRODUCT DIMENSIONS GMS8[040-100]BB GMS81205D*BA GMS81405DNCC For installations in Canada, the GMS furnaces are certifed only to 4,500 ft. * Negative pressure readings are in inches of water column (*w.c.) Mo d el T r i p P o in t ID Blo w e r P ress u re Sw i tch ID Blo w e r P ress u re Sw i tch Pa rt # G M S 804 03A * B B - 0. 70 B 1370 158 G M[...]

  • Page 8

    8 PRODUCT DESIGN Thermost ats: Filters: Filters are required with this furnace and must be provided by the installer. The filters used must comply with UL900 or CAN/ULCS111 standards. Installing this furnace without filters will void the unit warranty Upflow Filters Cabi net Wi d t h (i n. ) Nominal Filter Siz e (in. ) A pprox . Fl ow A rea (i n 2 [...]

  • Page 9

    FURNACE SPECIFICA TIONS 9 1. These furnaces are manufactured for natural gas operation. Optional Kits are available for conversion to propane gas operation. 2. For elevations above 2000 ft. the rating should be reduced by 4% for each 1000 ft. above sea level. The furnace must not be derated, orifice changes should only be made if necessary for alti[...]

  • Page 10

    BLOWER PERFORMANCE SPECIFICA TIONS 10 NOTES: • CFM in chart is without filter(s). Filters do not ship with this furnace, but must be provided by the installer. • All furnaces ship as hig-speed cooling. Installer must adjust blower cooling speed as needed. • For most jobs, about 400 CFM per ton when cooling is desirable • INSTALLATION IS TO [...]

  • Page 11

    11 BLOWER PERFORMANCE SPECIFICA TIONS 30 40 50 60 70 80 90 1 10 120 100 130 140 150 100 90 80 70 60 50 40 30 20 10 OU T P UT B T U / HR x 10 00 BTU OUTPUT v s TEMPERA TURE RISE CHAR T TE M PE R A TU R E R ISE 600 CF M 700 900 1000 1 100 1200 1400 1600 1800 2000 2200 24 00 CF M F O RMULAS BTU OUTPUT = CFM x 1.08 x R ISE RIS E = BT U O UT P UT 800[...]

  • Page 12

    12 WIRING DIAGRAMS Wiring is subject to change, always refer to the wiring diagram on the unit for the most up-to-date wiring. HIGH VOL T A GE! DISCONNECT AL L POWE R BEFORE SERVICI NG OR INS T ALLIN G THIS UNIT . M UL TIPL E POWER SO URCES MA Y BE P RESENT . F AI LURE T O DO SO MA Y CAUS E PROPERTY DAMAG E, PERSONAL INJURY OR DEA TH. GMS8 CAP BK ([...]

  • Page 13

    13 SCHEMA TICS HIGH VOL T A GE! DISCONNECT AL L POWE R BEFORE SERVICI NG OR INS T ALLIN G THIS UNIT . M UL TIPL E POWER SO URCES MA Y BE P RESENT . F AI LURE T O DO SO MA Y CAUS E PROPERTY DAMAG E, PERSONAL INJURY OR DEA TH. TYPICAL SCHEMATIC GMS8 * MODEL FURNACES WR 50T55-289 INTEGRATED IGNITION CONTROL This schematic is for reference only. Not al[...]