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Owner's Manual for BROAN models including: G8SA Series Single Stage Upflow Horizontal Gas Furnaces, G8SA Series, Single Stage Upflow Horizontal Gas Furnaces, Upflow Horizontal Gas Furnaces, Horizontal Gas Furnaces, Gas Furnaces, Furnaces
FG8SA | Gas Furnace | Broan | Literature Library
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DocumentDocumentTECHNICAL SPECIFICATIONS G8SA Series Single Stage Upflow/Horizontal Gas Furnaces Induced Draft - 80+ AFUE, Ultra-Low NOx Input 55,000 - 100,000 Btuh The gas furnace may be installed free standing in a utility room, basement, or enclosed in an alcove or closet. The rounded corner jacket provides a pleasing "appliance appearance." Design certified by CSA for application in the United States. This furnace series is approved and certified by the SCAQMD and the SJVAPC Districts in the state of California with NOx levels below 14 ng/J when operating on natural gas. This furnace series requires special heating engine modifications to ensure it emits some of the lowest NOx emissions of any residential furnace. Sound variances from typical 40ng/J furnaces can be expected but have no effect on performance or safety. FEATURES and BENEFITS · Ultra-low emissions: 65% less NOx than standard furnaces. · 100% fired and tested: All units and each component are tested on the manufacturing line. · Best packaging in the industry: Unique corner post design assures product will arrive to the homeowner dent free. · Low Boy Height: Easy to apply in low ceiling applications, works well with taller high SEER coils, easier to handle and install. · Tubular primary heat exchanger: Heavy gauge aluminized steel heat exchanger assures a long life. · 30 second blower delay at start-up: Assures a warm duct temperature at furnace start-up. Adjustable blower off settings (60, 90, 120 and 180 seconds). · 30 second post purge: Increases life of heat exchanger. · Hot surface igniter: Innovative application of a silicon nitride igniter. · Color coded wire harness: Designed to fit the components, all with quick-connect fittings for ease of service and replacement. · High static blowers: All models equipped with high static blowers. · 60 second cooling cycle blower-off delay (TDR): increases cooling performance when matched with a Nortek Global HVAC coil. · Flexible category I venting system: May be vented with dedicated venting system or common vented with other category one appliances. · High efficiency blower kits: Maximize efficiencies and provide better temperature control, humidity control and air distribution. · Multi-speed direct drive blower: Energy-efficient, brushless DC (ECM). Designed to give a wide range of cooling capacities. Switches on PCB, provide ultra easy motor speed selection. · Diagnostic lights for easy troubleshooting without counting flashes: Dedicated light for flame signal strength and 2 lights in combination to indicate all other fault codes with easy to recognize states without counting flashes. · Integrated control board: Incorporates connections for electronic air cleaner and humidifier. Ergonomically located for ease of service. · Two piece door design: Enhances furnace appearance and uses captured screws to prevent loosing door screws. · Furnace Air Leakage: These furnaces comply with Energy Star cabinet air leakage requirement of less than or equal to 2%. Keep the conditioned air flowing to where it's needed. 2 23 1/2 18 5/8 22 1/2 17 1/4 29 1/2 31 GAS FURNACE DIMENSIONS ULTRA-LOW NOX UPFLOW/HORIZONTAL FURNACE MODEL #'S DIM. -A- DIM. -B- 055U 070U 100U 14 1/4 17 1/2 21 10 3/4 11 3/4 14 NOTE: Dimensions shown in Inches. DIM. -C- 12 5/8 15 7/8 19 3/8 DIM. -D- 12 7/8 16 1/8 19 7/8 TOP VIEW C 23 FLANGES 19 28 24 1/4 25 3/8 B Accepts 4" Type B Vent Pipe T-stat T-stat (Ø 7/8) (Ø 7/8) Electric Electric (Ø 7/8) (Ø 7/8) Gas Gas (Ø 1 5/8) (Ø 1 5/8) BOTTOM VIEW D Front Brace Bottom Panel 5/8 5/8 24 1/4 22 1/4 25 34 1/2 31 17 7/8 4 Knockouts 15 (both sides) LEFT 1 SIDE 23 1 1/4 FRONT VIEW A 25 3/8 RIGHT SIDE GAS FURNACE COMPONENTS Inducer Assembly Furnace Control Board Primary Air Limit Switch Pressure Switch Gas Valve Sight Glass (Behind Valve Tee) Gas Burner Head Igniter / Flame Sensor Assembly Access Combustion Air Orifice Plate Blocked Vent Limit Switch (Auto or Manual Reset) Transformer Blower Door Switch Air / Fuel Mixing Tube Blower Limit Switch Blower Assembly 3 Gas Furnace Design Series S = Single Stage T = Two Stage M = Modulating A = 80% Upflow/Horizontal C = 92.1% / 95.1% Upflow/Horizontal D = 95% Upflow/Horizontal E = 96% Upflow K = 80% Downflow L = 92.1% / 95.1% Downflow M = 95% Downflow N = 96% Downflow Q = 96.4+% AFUE Upflow/Horizontal MODEL IDENTIFICATION CODE G 8 S A 055 U T 23 A 1 Revision Input Heating Capacity 055 = 55,000 070 = 70,000 100 = 100,000 Cabinet Width A = 14.25 B = 17.50 C = 21.00 D = 24.50 Cooling Airflow 23 = 2-3 Tons 24 = 2-4 Tons 35 = 3-5 Tons 45 = 4-5 Tons Motor Technology V = VSHE E = FSHE T = 5 Tap ECM NOx C/D = 40 Ng/J or less NOx U = 14 Ng/J or less NOx SPECIFICATIONS G8SA MODEL NUMBERS Input - Btuh (a) Heating Capacity - BtuH AFUE Motor H.P. - Speed - Type Motor FLA Rated Ext. SP - In. W.C. Temperature Rise Range - F Shipping Weights NOx -055U-T23A1 -070U-T24B1 -100U-T35C1 55000 44000 80.0 70000 56000 80.0 100000 80000 80.0 1/2 - 5 - ECM 3/4 - 5 - ECM 1 - 5 - ECM 6 8.4 11 0.5 0.5 0.5 35-65 35-65 35-65 107 135 144 <14ng/J <14ng/J <14ng/J 4 Description Side return filter kit ACCESSORIES G8SA KITS SKU 541036 AIRFLOW DATA MODEL NAME/ HEATING INPUT G8SA -055U-T23A* RETURN AIR VIA: Bottom Side HEATING AIRFLOW (CFM) & TEMPERATURE RISE (°F) MOTOR SPEED TAP 5 - High * 4 - Med-High 3 - Med-Low ** 2 - Alternate 1 - Low *** 5 - High * 4 - Med-High 3 - Med-Low ** 2 - Alternate 1 - Low *** 0.1 CFM RISE 880 46 705 58 640 64 875 47 685 59 640 64 EXTERNAL STATIC PRESSURE (IN. W.C.) 0.2 0.3 0.4 CFM RISE CFM RISE CFM RISE 845 48 810 50 770 53 650 63 610 570 600 555 510 830 49 795 51 750 54 650 63 595 555 585 540 500 0.5 CFM RISE 735 55 530 470 715 57 515 460 MODEL NAME/ HEATING INPUT G8SA -055U-T23A* RETURN AIR VIA: Bottom Side MOTOR SPEED TAP 5 - High * 4 - Med-High 3 - Med-Low ** 2 - Alternate 1 - Low *** 5 - High * 4 - Med-High 3 - Med-Low ** 2 - Alternate 1 - Low *** COOLING AIRFLOW (CFM) 0.1 CFM 1,180 920 880 705 640 1,160 905 875 685 640 EXTERNAL STATIC PRESSURE (IN. W.C.) 0.2 0.3 0.4 0.5 0.6 CFM CFM CFM CFM CFM 1,140 1,110 1,080 1,045 1,015 880 850 810 775 740 845 810 770 735 700 650 610 570 530 480 600 555 510 470 430 1,125 1,095 1,065 1,040 1,010 860 827 790 755 717 830 793 752 715 684 650 595 555 515 471 585 540 500 460 415 0.7 CFM 985 700 665 440 390 975 683 642 424 0.8 CFM 955 665 630 400 340 945 639 606 376 NOTES: 1. To comply with government mandated efficiency standards, two openings are required for airflows above 1,600 CFM. 2. Data is shown without filter. 3. Temperature rises in the table are approximate. Actual temperature rises may vary. 4. Individual cells shaded in gray indicate a temperature rise outside of the recommended range. 5. To comply with government mandated efficiency standards, speed settings shaded in gray are not allowed in HEAT mode. 6. The "*" denotes the factory COOL setting, "**" denotes the factory HEAT setting, and "***" denotes factory FAN setting. If the Alternate speed is to be used, the speed tap must be adjusted at the blower motor plug. 5 AIRFLOW DATA MODEL NAME/ HEATING INPUT -070U-T24B* RETURN AIR VIA: Bottom Side HEATING AIRFLOW (CFM) & TEMPERATURE RISE (°F) MOTOR SPEED TAP 0.1 CFM RISE 5 - High * 4 - Med-High 3 - Med-Low ** 2 - Alternate 1,130 46 1 - Low *** 820 63 5 - High * 4 - Med-High 3 - Med-Low ** 2 - Alternate 1,090 48 1 - Low *** 740 EXTERNAL STATIC PRESSURE (IN. W.C.) 0.2 0.3 0.4 CFM RISE CFM RISE CFM RISE 1,070 48 1,010 51 960 54 730 630 570 1,020 51 970 53 920 56 680 620 560 0.5 CFM RISE 890 58 540 860 60 510 MODEL NAME/ HEATING INPUT -070U-T24B* RETURN AIR VIA: Bottom Side MOTOR SPEED TAP 5 - High * 4 - Med-High 3 - Med-Low ** 2 - Alternate 1 - Low *** 5 - High * 4 - Med-High 3 - Med-Low ** 2 - Alternate 1 - Low *** COOLING AIRFLOW (CFM) 0.1 CFM 1,790 1,650 1,395 1,130 820 1,740 1,610 1,350 1,090 740 EXTERNAL STATIC PRESSURE (IN. W.C.) 0.2 0.3 0.4 0.5 0.6 0.7 CFM CFM CFM CFM CFM CFM 1,740 1,690 1,640 1,590 1,540 1,490 1,590 1,560 1,500 1,450 1,400 1,350 1,340 1,290 1,235 1,190 1,130 1,070 1,070 1,010 960 890 820 770 730 630 570 540 490 430 1,700 1,660 1,610 1,550 1,510 1,460 1,550 1,510 1,460 1,410 1,360 1,310 1,295 1,245 1,185 1,140 1,085 1,035 1,020 970 920 860 800 750 680 620 560 510 450 410 0.8 CFM 1,440 1,290 1,010 720 380 1,400 1,250 985 700 360 NOTES: 1. To comply with government mandated efficiency standards, two openings are required for airflows above 1,600 CFM. 2. Data is shown without filter. 3. Temperature rises in the table are approximate. Actual temperature rises may vary. 4. Individual cells shaded in gray indicate a temperature rise outside of the recommended range. 5. To comply with government mandated efficiency standards, speed settings shaded in gray are not allowed in HEAT mode. 6. The "*" denotes the factory COOL setting, "**" denotes the factory HEAT setting, and "***" denotes factory FAN setting. If the Alternate speed is to be used, the speed tap must be adjusted at the blower motor plug. 6 AIRFLOW DATA HEATING AIRFLOW (CFM) & TEMPERATURE RISE (°F) MODEL NAME/ HEATING INPUT G8SA RETURN AIR VIA: MOTOR SPEED TAP 0.1 CFM RISE 5 - High * 4 - Med-High Bottom 3 - Med-Low ** 880 46 2 - Alternate 705 58 1 - Low *** 640 64 5 - High * 4 - Med-High -100U-T35C* Side 3 - Med-Low ** 875 47 2 - Alternate 685 59 1 - Low *** 640 64 5 - High * Side + Bottom 4 - Med-High or 3 - Med-Low ** 1,600 46 2 Sides 2 - Alternate 1,525 49 1 - Low *** 1,370 54 EXTERNAL STATIC PRESSURE (IN. W.C.) 0.2 0.3 0.4 CFM RISE CFM RISE CFM RISE 845 48 810 50 770 53 650 63 610 570 600 555 510 830 49 795 51 750 54 650 63 595 555 585 540 500 1,530 48 1,460 51 1,400 53 1,455 51 1,390 53 1,330 56 1,300 57 1,230 60 1,150 64 0.5 CFM RISE 735 55 530 470 715 57 515 460 1,340 55 1,265 59 1,090 COOLING AIRFLOW (CFM) MODEL NAME/ HEATING INPUT G8SA RETURN AIR VIA: MOTOR SPEED TAP -100U-T35C* 5 - High * 4 - Med-High Bottom 3 - Med-Low ** 2 - Alternate 1 - Low *** 5 - High * 4 - Med-High Side 3 - Med-Low ** 2 - Alternate 1 - Low *** 5 - High * Side + Bottom 4 - Med-High or 3 - Med-Low ** 2 sides 2 - Alternate 1 - Low *** 0.1 CFM 2,310 1,870 1,580 1,500 1,390 2,160 1,810 1,540 1,470 1,310 2,280 1,880 1,600 1,525 1,370 EXTERNAL STATIC PRESSURE (IN. W.C.) 0.2 0.3 0.4 0.5 0.6 0.7 CFM CFM CFM CFM CFM CFM 2,260 2,200 2,150 2,100 2,040 1,990 1,820 1,760 1,720 1,670 1,610 1,560 1,530 1,480 1,420 1,360 1,290 1,230 1,450 1,400 1,340 1,280 1,210 1,130 1,320 1,260 1,200 1,130 1,060 970 2,100 2,060 2,020 2,050 1,990 1,950 1,750 1,710 1,660 1,620 1,560 1,510 1,490 1,440 1,380 1,330 1,270 1,210 1,420 1,360 1,310 1,260 1,200 1,130 1,250 1,190 1,150 1,080 1,000 950 2,220 2,170 2,120 2,090 2,080 2,020 1,820 1,770 1,720 1,670 1,610 1,560 1,530 1,460 1,400 1,340 1,270 1,200 1,455 1,390 1,330 1,265 1,190 1,120 1,300 1,230 1,150 1,090 1,000 920 0.8 CFM 1,940 1,490 1,155 1,050 890 1,880 1,440 1,150 1,070 880 1,950 1,490 1,120 1,045 860 NOTES: 1. To comply with government mandated efficiency standards, two openings are required for airflows above 1,600 CFM. 2. Data is shown without filter. 3. Temperature rises in the table are approximate. Actual temperature rises may vary. 4. Individual cells shaded in gray indicate a temperature rise outside of the recommended range. 5. To comply with government mandated efficiency standards, speed settings shaded in gray are not allowed in HEAT mode. 6. The * denotes the factory COOL setting, ** denotes the factory HEAT setting, and *** denotes factory FAN setting. If the Alternate speed is to be used, the speed tap must be adjusted at the blower motor plug. 7 GENERAL TERMS OF LIMITED WARRANTY Nortek Global HVAC, LLC will furnish a replacement for any part of this product which fails in normal use and service within the terms and conditions of the warranty. For complete details of the Limited Warranty, including applicable terms and conditions, see your local installer or contact the Nortek Global HVAC, LLC warranty department for a copy. Before purchasing this appliance, read important energy cost and efficiency information available from your retailer. Specifications and illustrations subject to change without notice and without incurring obligations. Printed in U.S.A (08/2021) 512F-0821 (Replaces 512F-0520) www.broanhvac.net Broan® trademark used under license. © Nortek Global HVAC, LLC. All Rights Reserved. Powered by TCPDF (www.tcpdf.org)