Blue Summit BG921UH Installation Instructions Manual

Warm air gas furnace, upflow/horizontal left and right air discharge

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Gas Furnace

Blue Summit LLC

507270-03B

INSTALLATION INSTRUCTIONS

BG921UH & BG951UH

Warm Air Gas Furnace

This manual must be left with the homeowner for future reference.

Table of Contents

WARNING

Save these instructions for future reference

Gas Piping

Service

Issue 1904

CAUTION

*P507270-03B*

(P) 507270-03B

Page 1 of 58

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Summary of Contents for Blue Summit BG921UH

Page 1 INSTALLATION INSTRUCTIONS BG921UH & BG951UH Warm Air Gas Furnace This manual must be left with the homeowner for future reference. Table of Contents Gas Piping Gas Furnace Service WARNING CAUTION *P507270-03B* Blue Summit LLC (P) 507270-03B Save these instructions for future reference...
Page 2 Unit Dimensions 1 NOTE - Air B FRONT VIEW SIDE VIEW Capacity 070-12 090-12 090-16 110-20 135-20 Page 2 of 58 Issue 1904 507270-03B...
Page 3 Parts Arrangement Figure 1. 507270-03B Issue 1904 Page 3 of 58...
Page 4 Gas Furnace Shipping and Packing List NOTE: NOTE: In Direct Vent installations, combustion air is taken In Non-Direct Vent installations, combustion air is taken accessories Safety Information WARNING Figure 2. CAUTION DANGER DANGER OF EXPLOSION! Figure 3. Issue 1904 507270-03B...
Page 5 Installed in Combination with a Cooling Coil Building Codes Installation Locations NOTE: Figure 4. Heating Unit Installed Parallel to Air Handler NOTE: Unit NOTE: 507270-03B Issue 1904 Page 5 of 58...
Page 6 DO NOT USE THE UNIT FOR CONSTRUCTION HEAT UNLESS ALL OF THE FOLLOWING CRITERIA ARE MET: General • • • • • NOTE: • • • COMPONENT FAILURE AS A RESULT OF FAILURE TO CAUTION BLUE SUMMIT Page 6 of 58 Issue 1904 507270-03B...
Page 7 Combustion, Dilution & Ventilation Air NOTE: In Non-Direct Vent Installations, combustion air is CAUTION WARNING • • • • • • • • • • • • • 507270-03B Issue 1904 Page 7 of 58...
Page 8 Air from Inside Figure 6. Outside (Inlet Air from Crawl Space and Outlet Air to Ventilated Attic) Figure 5. Inside Air from Outside Figure 7. Outside (All Air through Ventilated Attic) Page 8 of 58 Issue 1904 507270-03B...
Page 9 Ventilation Louvers Inlet Air Roof Terminated (Minimum 12 in. Exhaust Pipe (305mm) above Attic Floor) *Intake Debris Screen (Provided) Furnace * See Maximum Vent Lengths table NOTE Figure 8. Figure 10. (Inlet Air from Ventilated Attic & Outlet Air to Outside) Outside Shipping Bolt Removal Roof Terminated...
Page 10 Installation Setting Equipment WARNING WARNING WARNING Return Air Guidelines Figure 12. Setting Equipment Page 10 of 58 Issue 1904 507270-03B...
Page 11 0† 0‡ Figure 14. Side Return Air (with Transition and Filter) Figure 13. Installation Clearances Figure 15. Optional Return Air Base 507270-03B Issue 1904 Page 11 of 58...
Page 12 Removing the Bottom Panel 0† Figure 16. Removing the Bottom Panel 0‡ Horizontal Applications WARNING Figure 18. Horizontal Application Installation Clearances Suspended Installation of Horizontal Unit Figure 17. Figure 19. Typical Horizontal Application Page 12 of 58 Issue 1904 507270-03B...
Page 13 NOTE: Filters NOTE: Filter Size Furnace Cabinet Width Side Return Bottom Return Platform Installation of Horizontal Unit Table 1. Duct System NOTE: Supply Air Plenum Return Air Plenum NOTE: Figure 20. 507270-03B Issue 1904 Page 13 of 58...
Page 14 F891 F628 (Pipe) CAUTION ASTM Primer & Solvent Cement SPECIFICATION F656 IMPORTANT Canada Pipe & Fitting & Solvent Cement MARKING ULCS636 Polypropylene Venting System ULC-S636 ULC-S636 ULC-S636 Table 2. Canadian Applications Only Joint Cementing Procedure NOTE: Issue 1904 507270-03B...
Page 15 STANDARD CONCENTRIC Outdoor Outdoor Exhaust Exhaust Flush Accelerator Concentric Concentric Concentric VENT Accelerator Mount Kit Capacity PIPE DIA. (Dia. X Length) (Dia. X Length) (in.) 71M80 69M29 60L46 51W11 ** or 44W93+ +44W92++ +44W92++ Table 3. Outdoor Termination Kits Usage DANGER DANGER OF EXPLOSION! NOTE:...
Page 16 Venting Practices Figure 21. Removal of the Furnace from Common Vent WARNING CARBON MONOXIDE POISONING HAZARD Figure 22. Page 16 of 58 Issue 1904 507270-03B...
Page 17 Exhaust Piping CAUTION Figure 23. NOTE: NOTE: CAUTION Vent Piping Guidelines Capacity Min. Vent Length* 135** NOTE: In non-Direct Vent installations, combustion air is In Direct Vent installations, combustion air is taken from Table 4. Minimum Vent Pipe Lengths IMPORTANT 507270-03B Issue 1904 Page 17 of 58...
Page 18 045, 070, Furnace capacity? 090, 110, Standard or Which termination? Concentric? See Table 3 Which needs most Intake or elbows? Exhaust? How many? 2”, 2-1/2” Desired pipe size? or 3” What is the altitude? Use Table 5 or Table 6 to find max pipe length.
Page 19 BG921UH Maximum Allowable Intake or Exhaust Vent Length in Feet 2" Pipe 3" Pipe Number of 90° Capacity Capacity Capacity Elbows Used 2" Pipe 3" Pipe Number of 90° Capacity Capacity Capacity Elbows Used Table 5A. 507270-03B Issue 1904 Page 19 of 58...
Page 20 BG921UH Maximum Allowable Exhaust Vent Length with Furnace Installed in a Closet or Basement Using Ventilated Attic or Crawl Space for Intake in Feet 2" Pipe 3" Pipe Number of 90° Capacity Capacity Capacity Elbows Used NOTE Table 5B. Page 20 of 58...
Page 21 BG951UH Maximum Allowable Intake or Exhaust Vent Length in Feet 2" Pipe 3" Pipe Number of 90° Elbows Capacity Capacity Capacity Used 2" Pipe 3" Pipe Number of 90° Elbows Capacity Capacity Capacity Used Table 6A. 507270-03B Issue 1904 Page 21 of 58...
Page 22 BG951UH Maximum Allowable Intake or Exhaust Vent Length in Feet 2" Pipe 3" Pipe Number of 90° Elbows Capacity Capacity Capacity Used 2" Pipe 3" Pipe Number of 90° Elbows Capacity Capacity Capacity Used Table 6B. Page 22 of 58 Issue 1904 507270-03B...
Page 23 BG951UH Maximum Allowable Exhaust Vent Length with Furnace Installed in a Closet or Basement Using Ventilated Attic or Crawl Space for Intake in Feet 2" Pipe 3" Pipe Number of 90° Elbows Capacity Capacity Capacity Used 2" Pipe 3" Pipe Number of 90°...
Page 24 Figure 25. Figure 26. Issue 1904 507270-03B...
Page 25 Figure 27. Figure 28. Intake Piping 507270-03B Issue 1904 Page 25 of 58...
Page 26 Figure 30. Figure 29. CAUTION Ventilation Louvers Inlet Air Roof Terminated (Minimum 12 in. Exhaust Pipe (305mm) above Attic Floor) *Intake Debris Screen (Provided) Furnace * See Maximum Vent Lengths table NOTE Figure 31. (Inlet Air from Ventilated Attic & Outlet Air to Outside) Page 26 of 58 Issue 1904 507270-03B...
Page 27 General Guidelines for Vent Terminations Roof Terminated Exhaust Pipe Inlet Air Minimum 12 in. (305mm) Ventilation Furnace above Crawl Louvers (Crawl Space) Space Floor Coupling or *Intake Debris Screen Provided 3 in. to 2 in. Transition (Field Provided) * See Maximum Vent Lengths table Conditioned Space NOTE...
Page 28 ‡ Permitted only if veranda, porch, deck or balcony is fully open on a minimum of two sides beneath the floor. Blue Summit recommends avoiding this location if possible. Figure 34.
Page 29 ‡ Permitted only if veranda, porch, deck or balcony is fully open on a minimum of two sides beneath the floor. Blue Summit recommends avoiding this location if possible. Figure 35. Vent Termination Clearances for Direct Vent Installations...
Page 30 Details of Intake and Exhaust Piping Terminations for Direct Vent Installations NOTE: In Direct Vent installations, combustion air is taken NOTE: NOTE: NOTE: Termination Pipe Capacity Exhaust Pipe Size Size IMPORTANT *090 IMPORTANT For Canadian Installations Only: Table 8. Exhaust Pipe Termination Size Reduction NOTE: Page 30 of 58 Issue 1904...
Page 31 3” (76MM) MIN. SIZE PER EXHAUST PIPE Inches (MM) TERMINATION SIZE REDUCTION TABLE UNCONDITIONED ATTIC SPACE 8” (203MM) MIN 1/2” (13MM) FOAM 12” (305MM) ABOVE INSULATION IN AVERAGE SNOW UNCONDITIONED ACCUMULATION SPACE 3” (76MM) OR 2” (51MM) PVC PROVIDE SUPPORT FOR INTAKE AND EXHAUST LINES Figure 36.
Page 32 FIELD-PROVIDED STRAIGHT-CUT OR ANGLE-CUT IN DIRECTION REDUCER MAY BE REQUIRED 3”-8” 1-1/2” (38mm) accelerator OF ROOF SLOPE TO ADAPT LARGER VENT (76MM-203MM) provided on 71M80 & 44W92 PIPE SIZE TO TERMINATION kits for -45 and -70 units OUTSIDE 8” - 12” INTAKE WALL (203MM - 305MM)
Page 33 FIELD FABRICATED WALL TERMINATION NOTE − FIELD−PROVIDED REDUCER MAY BE 2” (51mm) 3” (76mm) REQUIRED TO ADAPT LARGER VENT PIPE SIZE Vent Pipe Vent Pipe TO TERMINATION A− Minimum clearance above grade or average 12” (305 mm) 12” (305 mm) snow accumulation B−...
Page 34 Direct Vent Applications SIZE TERMINATION PER EXHAUST PIPE TERMINATION SIZE REDUCTION TABLE * Use wall support every 24” (610 mm). Use two supports of extension is greater than 24” (610 mm) but less than 48” (1219 mm). Figure 47. Termination Extermination STRAIGHT-CUT OR ANGLE-CUT IN DIRECTION OF ROOF SLOPE...
Page 35 Exhaust through Crawl Space Vent Option Exhaust from Furnace To Termination From To Vent Furnace Termination Exhaust from Furnace 2” or 3” Sanitary Tee 1/2” PVC To Termination Drain Stub Drain Trap Assembly Rubber Boot (51W18) Drain Plug (15Z70) * Kit 51W18 is shown. Drain Trap (assembled) Clamp...
Page 36 Condensate Piping CAUTION Figure 52. NOTE: Figure 53. Condensate Trap Locations IMPORTANT Page 36 of 58 Issue 1904 507270-03B...
Page 37 Figure 54. Evaporator Coil Using a Separate Drain Figure 55. Evaporator Coil Using a Separate Drain Figure 56. Evaporator Coil Using a Common Drain Figure 57. Evaporator Coil Using a Common Drain 507270-03B Issue 1904 Page 37 of 58...
Page 38 Figure 58. Page 38 of 58 Issue 1904 507270-03B...
Page 39 NOTE: Figure 59. Switch Gas Piping CAUTION IMPORTANT Leak Check WARNING IMPORTANT Figure 60. 507270-03B Issue 1904 Page 39 of 58...
Page 40 IMPORTANT WARNING FIRE OR EXPLOSION HAZARD Figure 61. Gas Piping Figure 62. Gas Piping Horizontal Applications Issue 1904 507270-03B...
Page 41 Nominal Internal Iron Pipe Diameter inches (3.048) (6.096) (9.144) (12.192) (15.240) (18.288) (21.336) (24.384) (27.432) (30.480) (mm) (mm) 2100 1180 3950 2750 2200 1900 1680 1520 1300 1220 1150 6300 3520 3000 2650 2250 2050 1950 1850 11000 7700 6250 5300 3900 3700...
Page 42 Electrical ELECTROSTATIC DISCHARGE (ESD) Precautions and Procedures CAUTION NOTE: NOTE: Figure 63. Accessory Terminals Figure 64. Issue 1904 507270-03B...
Page 43 Indoor Blower Speeds • • • • Figure 65. Figure 66. 507270-03B Issue 1904...
Page 44 Figure 67. Typical Wiring Diagram Issue 1904 507270-03B...
Page 45 Terminal Designations LINE COOL NEUTRALS Figure 68. Integrated Control (Automatic Hot Surface Ignition System) CAUTION FOR YOUR SAFETY READ BEFORE OPERATING WARNING BEFORE LIGHTING WARNING Placing the Furnace into Operation 507270-03B Issue 1904...
Page 46 Priming Condensate Trap NOTE: Turning Off Gas to Unit Failure To Operate WARNING Gas Valve Operation See Figure 69 STOP! Heating Sequence of Operation STOP! Figure 69. Issue 1904 507270-03B...
Page 47 Gas Pressure Adjustment Gas Flow (Approximate) Seconds for One Revolution Natural Capacity 1 cu ft 2 cu ft 1 cu ft 2 cu ft Dial Dial Dial Dial -070 NOTE: -090 -110 -135 Proper Combustion Table 10. Gas Meter Clocking Chart Capacity % for Nat % for L.P.
Page 48 Capacity High Altitude High Altitude Natural Burner Propane Natural 73W80* 51W01 BG921UH Pressure Switch Requirements at Varying Altitudes Capacity 11J09 (replaced 11J10 by 11U65) BG951UH Pressure Switch Requirements at Varying Altitudes Capacity 11J09 11J12 10U93 11J11 10U93 11J12 10U93 11J11 10U93 Table 13.
Page 49 WARNING CARBON MONOXIDE POISONING HAZARD 507270-03B Issue 1904...
Page 50 Thermostat Heat Anticipation Other Unit Adjustments Primary Limit Electrical Flame Rollout Switches (Two) Pressure Switch Blower Speeds Temperature Rise NOTE: Fan Control Electronic Ignition Exhaust and Air Intake Pipe Figure 70. Page 50 of 58 Issue 1904 507270-03B...
Page 51 Blower Performance BG921UH BG921UH045BP08 Performance (Less Filter) External Static High Pressure Watts Watts Watts Watts in. w.c. 1135 1125 1090 1065 1020 BG921UH070BP12 Performance (Less Filter) External Static High Pressure Watts Watts Watts Watts in. w.c. 1615 1355 1030 1565...
Page 52 BG921UH090CP16 Performance (Less Filter) External Static High Pressure Watts Watts Watts Watts in. w.c. 2025 1690 1395 1200 1995 1705 1390 1205 1925 1675 1205 1850 1170 1790 1575 1395 1170 1700 1350 1610 1295 1100 1365 1225 1030 1265 1125 1270 1165...
Page 53 Blower Performance BG951UH BG951UH045BP08 Performance (Less Filter) External Static High Pressure Watts Watts Watts Watts in. w.c. 1135 1125 1090 1065 1020 BG951UH070BP12 Performance (Less Filter) External Static High Pressure Watts Watts Watts Watts in. w.c. 1585 1095 1560 1320 1085 1515 1300...
Page 54 BG951UH090CP16 Performance (Less Filter) External Static High Pressure Watts Watts Watts Watts in. w.c. 1895 1590 1350 2110 1880 1585 1360 2060 1835 1580 1360 1990 1805 1550 1365 1925 1755 1510 1330 1830 1680 1285 1720 1610 1390 1230 1600 1525 1300...
Page 55 Winterizing and Condensate Trap Care Service WARNING ELECTRICAL SHOCK, FIRE, OR EXPLOSION HAZARD. Cleaning Heat Exchanger Blower WARNING Filters Exhaust and Air Intake Pipes NOTE: Electrical 507270-03B Issue 1904 Page 55 of 58...
Page 56 Cleaning the Burner Assembly Page 56 of 58 Issue 1904 507270-03B...
Page 57 Planned Service Fresh air grilles and louvers Instruct the homeowners to pay attention to their furnace. Burners Vent pipe LED Status Fault Description Unit appearance Blower access door Return air duct Operating performance Combustion gases Table 14. Diagnostic Codes Repair Parts List Cabinet Parts Heating Parts •...
Page 58 Requirements for Commonwealth of Massachusetts INSPECTION requirements: EXEMPTIONS: The following equipment is exempt from 24 CMR 5.08(2)(a) 1 through 4: INSTALLATION CARBON MONOXIDE DETECTORS VENTING SYSTEM PROVIDED. VENTING SYSTEM NOT PROVIDED. APPROVED CARBON MONOXIDE DETECTORS. SIGNAGE A copy of all installation instructions for all Product equipment, all venting instructions, all parts lists instructions shall remain with the appliance or equipment at the completion of the installation.

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