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Allied 96G1UHE Installation Instructions Manual

Warm air gas furnace
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Upflow/Horizontal Left and Right Air Discharge
This is a safety alert symbol and should never be ignored. When you see this symbol on labels or in manuals, be alert to
the potential for personal injury or death.
Unit Dimensions ..........................................................2
Parts Arrangement.......................................................3
Gas Furnace ................................................................4
Shipping and Packing List ...........................................4
Safety Information .......................................................4
General ........................................................................6
Combustion, Dilution & Ventilation Air .........................6
Installation ...................................................................9
Filters .........................................................................13
Duct System ..............................................................13
Venting Practices .......................................................16
Improper installation, adjustment, alteration, service
or maintenance can cause property damage, personal
injury or loss of life. Installation and service must be
performed by a licensed professional installer (or
equivalent), service agency or the gas supplier.
Manufactured By
Allied Air Enterprises LLC
215 Metropolitan Drive
West Columbia, SC 29170
507768-05
INSTALLATION INSTRUCTIONS
Warm Air Gas Furnace
This manual must be left with the homeowner for future reference.

Table of Contents

WARNING
96G1UHE
Condensate Piping ....................................................34
Gas Piping .................................................................38
Electrical ....................................................................41
Unit Start-Up ..............................................................44
Air for Non-Direct Vent Applications ..........................48
Other Unit Adjustments..............................................48
Blower Performance ..................................................50
Service.......................................................................52
Planned Service ........................................................54
Repair Parts List ........................................................55
As with any mechanical equipment, personal injury can
result from contact with sharp sheet metal edges. Be
careful when you handle this equipment.
Issue 2128
CAUTION
*P507768-05*
(P) 507768-05
Page 1 of 56

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  • Page 1: Table Of Contents

    Be performed by a licensed professional installer (or careful when you handle this equipment. equivalent), service agency or the gas supplier. Manufactured By *P507768-05* Allied Air Enterprises LLC 215 Metropolitan Drive (P) 507768-05 West Columbia, SC 29170 507768-05 Issue 2128...

  • Page 2: Unit Dimensions

    Unit Dimensions NOTE - C*20 (5 Ton) size units installed in upflow applications that require air volumes of 1800 cfm (850 L/s) or greater must Top View have one of the following: Single side return air with transition, to accommodate 20 x 25 x 1 in.

  • Page 3: Parts Arrangement

    Parts Arrangement Figure 1. 507768-05 Issue 2128 Page 3 of 56...

  • Page 4: Gas Furnace

    1 - Snap bushing in horizontal or upflow applications with bottom return air. 1 - Snap Plug The 96G1UHE can be installed as either a Direct Vent or a 1 - Wire tie Non-Direct Vent gas central furnace. 1 - Condensate trap...
  • Page 5 In order to ensure proper unit operation in non-direct vent applications, combustion and ventilation air supply must be provided according to the current National Fuel Gas Code or CSA-B149 standard. Installation Locations This furnace is CSA International certified for installation clearances to combustible material as listed on the unit nameplate and in the table in Figure 13 and Figure 18.

  • Page 6: General

    VOIDS MANUFACTURER’S These units should not be installed in areas normally EQUIPMENT LIMITED WARRANTY. ALLIED subject to freezing temperatures. DISCLAIMS ALL LIABILITY IN CONNECTION WITH INSTALLER’S FAILURE TO FOLLOW THE ABOVE INSTALLATION INSTRUCTIONS. Combustion, Dilution & Ventilation Air NOTWITHSTANDING THE FOREGOING, INSTALLER...
  • Page 7 the National Fuel Gas Code (ANSI-Z223.1/NFPA 54). This In addition to providing combustion air, fresh outdoor air reprinted material is not the complete and official position dilutes contaminants in the indoor air. These contaminants of ANSI on the referenced subject, which is represented may include bleaches, adhesives, detergents, solvents only by the standard in its entirety.
  • Page 8 When communicating with the outdoors through horizontal ducts, each opening shall have a minimum free area of 1 square inch (645 mm²) per 2,000 Btu (.56 kW) per hour of the total input rating of all equipment in the enclosure. See Figure 8.

  • Page 9: Installation

    Shipping Bolt Removal Units with 1/2 hp & 3/4 hp blower motor are equipped WARNING with three flexible legs and one rigid leg. The rigid leg is equipped with a shipping bolt and a flat white plastic If this unit is being installed in an application with washer (rather than the rubber mounting grommet used combustion air coming in from a space serviced by an with a flexible mounting leg).
  • Page 10 Tilt the unit slightly (Max. 1/2”) from back to front to aid in the draining of the heat exchanger. Unit must be level side-to-side in all applications. Figure 12. Setting Equipment WARNING Improper installation of the furnace can result in personal injury or death.
  • Page 11 Return Air Guidelines Return air can be brought in through the bottom or either side of the furnace installed in an upflow application. If the 20” X 25” X 1” furnace is installed on a platform with bottom return, make (508mm X 635mm X 25mm) an airtight seal between the bottom of the furnace and the Air Filter...
  • Page 12 Right-Hand Discharge Left End Right End Flow Flow Bottom (Floor)** Left-Hand Discharge Left End Right End Flow Flow Figure 16. Removing the Bottom Panel Bottom (Floor)** Top/Plenum 1 in. (25 mm) Removing the Bottom Panel * Front Remove the two screws that secure the bottom cap to the Back furnace.

  • Page 13: Filters

    NOTE: Heavy-gauge sheet metal straps may be used to Filters suspend the unit from roof rafters or ceiling joists. When straps are used to suspend the unit in this way, support must be provided for both the ends. The straps must not This unit is not equipped with a filter or rack.
  • Page 14 D2665 Pipe & Fittings) ASTM PRIMER & SOLVENT CEMENT IMPORTANT SPECIFICATION 96G1UHE exhaust and intake connections are made PVC & CPVC Primer F656 of PVC. Use PVC primer and solvent cement when PVC Solvent Cement D2564 using PVC vent pipe. When using ABS vent pipe, use...
  • Page 15 STANDARD CONCENTRIC Outdoor Outdoor Exhaust Exhaust Flush Mount 1-1/2" 2" Concentric 3" Concentric VENT Accelerator Accelerator Concentric Kit Capacity PIPE DIA. (Dia. X Length) (Dia. X Length) (in.) 71M80 69M29 60L46 1-1/2" x12" 2" x12" 51W11** +44W92++ +44W92++ 44W93+ 1-1/2 2-1/2"...

  • Page 16: Venting Practices

    Promptly apply solvent cement to end of pipe and Conduct the following test while each appliance is operating inside socket surface of fitting. Cement should be and the other appliances (which are not operating) remain applied lightly but uniformly to inside of socket. Take connected to the common venting system.
  • Page 17 Contact Allied Air Technical Service for assistance is probably oversized for the single water heater or in sizing vent pipe in these applications.
  • Page 18 IMPORTANT Do not use screens or perforated metal in exhaust or 030, 045, Furnace capacity? 070, 090, intake terminations. Doing so will cause freeze-ups and may block the terminations. Capacity Min. Vent Length* 15 ft or 5 ft plus 2 elbows or Standard or 030, 045, 070, 090, 110 Which termination?
  • Page 19 96G1UHE Maximum Allowable Intake or Exhaust Vent Length in Feet Standard Termination at Elevation 0 - 4,500 ft 1-1/2” Pipe 2” Pipe 2-1/2" Pipe 3" Pipe Number Capacity Capacity Capacity Capacity of 90° Elbows Used Standard Termination at Elevation 4,501 - 10,000 ft 1-1/2”...
  • Page 20 96G1UHE Maximum Allowable Intake or Exhaust Vent Length in Feet Concentric Termination at Elevation 0 - 4,500 ft 1-1/2” Pipe 2” Pipe 2-1/2" Pipe 3" Pipe Number Capacity Capacity Capacity Capacity of 90° Elbows Used Concentric Termination Elevation 4501 - 10,000 ft 1-1/2”...
  • Page 21 Maximum Allowable Exhaust Vent Lengths with Furnace Installed in a Closet or Basement Using Ventilated Attic or Crawl Space for Intake Air in Feet Standard Termination at Elevation 0 - 4,500 ft 1-1/2” Pipe 2” Pipe 2-1/2" Pipe 3" Pipe Number Capacity Capacity...
  • Page 22 TYPICAL EXHAUST PIPE CONNECTIONS IN UPFLOW DIRECT OR NON-DIRECT VENT APPLICATIONS Pipe size determined in Table 5 2” 2” 2” 2” 3” 2” TRANSITION EXHAUST *2” 030/045/070 Only 1-1/2” DO NOT transition from smaller to larger TRANSITION pipe in horizontal runs 2”...
  • Page 23 TYPICAL INTAKE PIPE CONNECTIONS IN UPFLOW DIRECT OR NON-DIRECT VENT APPLICATIONS 2” 3” Pipe size determined in Table 5 TRANSITION INTAKE *2” 2” 2” 2” 2” * When transitioning up in pipe size, use the shortest length of 2” PVC pipe possible. NOTE: Exhaust pipe and intake pipe must be the same diameter.
  • Page 24 The air intake piping must not terminate too close to TYPICAL AIR INTAKE PIPE CONNECTIONS the flooring or a platform. Ensure that the intake air UPFLOW NON-DIRECT VENT APPLICATIONS inlet will not be obstructed by loose insulation or other items that may clog the debris screen. Intake Debris If intake air is drawn from a ventilated attic (Figure...
  • Page 25 NOTE: See Table 6 for maximum allowed exhaust pipe length without insulation in unconditioned space during winter design temperatures below 32°F (0°C). If required Roof Terminated Exhaust Pipe exhaust pipe should be insulated with 1/2” (13 mm) Armaflex or equivalent. In extreme cold climate areas, 3/4”...
  • Page 26 Maximum Allowable Exhaust Vent Pipe Length (in ft.) without Insulation in Unconditioned Space For Winter Design Temperatures Single - Stage High Efficiency Furnace Unit Input Size Winter Design Vent Pipe Temperatures ºF (ºC) Diameter 1-1/2 in. 32 to 21 2 in. (0 to -6) 2-1/2 in.
  • Page 27 ‡ Permitted only if veranda, porch, deck or balcony is fully open on a minimum of two sides beneath the floor. Allied Air recommends avoiding this location if possible. Figure 34. Vent Termination Clearances for Non-Direct Installations...
  • Page 28 ‡ Permitted only if veranda, porch, deck or balcony is fully open on a minimum of two sides beneath the floor. Allied Air recommends avoiding this location if possible. Figure 35. Vent Termination Clearances for Direct Installations Page 28 of 56...
  • Page 29 Details of Intake and Exhaust Piping 3” (76MM) MIN. SIZE PER EXHAUST PIPE Inches (MM) Terminations for Direct Vent Installations TERMINATION SIZE NOTE: In Direct Vent installations, combustion air is taken REDUCTION TABLE from outdoors and flue gases are discharged to outdoors. UNCONDITIONED ATTIC SPACE 8”...
  • Page 30 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 31 On field supplied terminations, a minimum distance DIRECT VENT CONCENTRIC ROOFTOP TERMINATION between the end of the exhaust pipe and the end of 71M80, 69M29 or 60L46 (US) the intake pipe without a termination elbow is 8” and a 44W92 or 44W93 (Canada) minimum distance of 6”...
  • Page 32 Details of Exhaust Piping Terminations for Non- If exhaust piping must be run up a sidewall to position above snow accumulation or other obstructions, piping Direct Vent Applications must be supported every 24” (610 mm) as shown in Exhaust pipes may be routed either horizontally through Figure 47.
  • Page 33 Exhaust through Crawl Space Vent Option All 33” condensing gas furnaces (92%+) are now approved Exhaust from to be vented down through a crawl space. Ensure a vent Furnace pipe drain kit, 51W18 (USA) or 15Z70 (Canada), is used as To Termination directed through the floor joists and into the crawl space.

  • Page 34: Condensate Piping

    Figure 55 and Figure 56 show the furnace and Condensate Piping evaporator coil using a separate drain. If necessary the condensate line from the furnace and evaporator This unit is designed for either right or left side exit of coil can drain together. See Figure 57 and Figure 58. condensate piping in upflow applications.
  • Page 35 * Piping from furnace must slope down a minimum of 1/4” per ft. toward trap. Figure 53. Condensate Trap Locations (Unit shown in upflow position with remote trap) Figure 54. Condensate Trap with Optional Overflow Switch WARNING When combining the furnace and evaporator coil drains together, the A/C condensate drain outlet must be vented to relieve pressure in order for the furnace pressure switch to operate properly.
  • Page 36 * Piping from furnace must slope down a minimum of 1/4” per ft. toward trap. Figure 55. Condensate Trap Locations Figure 56. Unit with Cooling Coil Using Separate Figure 57. Evaporator Coil Using a Common Drain Drain Piping from furnace and evaporator coil must slope down a minimum 1/4” per ft. toward trap. Figure 58.
  • Page 37 Figure 59. Trap / Drain Assembly Using 1/2” PVC or 3/4” PVC 507768-05 Issue 2128 Page 37 of 56...

  • Page 38: Gas Piping

    Gas Piping IMPORTANT Compounds used on threaded joints of gas piping must be resistant to the actions of liquified petroleum gases. CAUTION If a flexible gas connector is required or allowed by the authority that has jurisdiction, black iron pipe shall Leak Check be installed at the gas valve and extend outside the After gas piping is completed, carefully check all field-...
  • Page 39 Figure 61. Gas Piping Upflow Applications Figure 62. Gas Piping Horizontal Applications 507768-05 Issue 2128 Page 39 of 56...
  • Page 40 Gas Pipe Capacity - FT³/HR (kL/HR) Nominal Length of Pipe - feet (m) Internal Iron Pipe Diameter Size - - inches inches (3.048) (6.096) (9.144) (12.192) (15.240) (18.288) (21.336) (24.384) (27.432) (30.480) (mm) (mm) .622 (12.7) (17.799) (4.96) (3.40) (2.75) (2.32) (2.07) (1.87)

  • Page 41: Electrical

    The unit is equipped with a field makeup box. The makeup Electrical box may be moved to the right side of the furnace to facilitate installation. Seal unused openings on left side with plugs removed from right side. Secure the excess wire ELECTROSTATIC DISCHARGE (ESD) to the existing harness to protect it from damage.
  • Page 42 use an external relay. See Figure 68 for control board Install the room thermostat according to the instructions configuration. This terminal is energized in the heating provided with the thermostat. See Figure 65 for thermostat mode when the combustion air inducer is operating. designations.
  • Page 43 Figure 67. Typical Wiring Diagram 507768-05 Issue 2128 Page 43 of 56...

  • Page 44: Unit Start-Up

    Terminal Designations 120 HUM Humidifier (120 VAC) LINE Input (120 VAC) XFMR Transformer (120 VAC) CIRC Indoor Blower (120 VAC) Electronic Air Cleaner (120 VAC) COOL Blower - Cooling Speed (24 VAC) HEAT Blower - Heating Speed (24 VAC) Blower - Fan Speed (24 VAC) PARK Dead terminals to park all speed taps NEUTRALS...
  • Page 45 Priming Condensate Trap The condensate trap should be primed with water prior to start-up to ensure proper condensate drainage. Either pour 10 fl. oz. (300 ml) of water into the trap, or follow these steps to prime the trap: Follow the lighting instructions to place the unit into operation.
  • Page 46 If flame is not detected after first ignition trial, the pressure may result in erratic operation or underfire. High ignition control will repeat steps 3 and 4 four more pressure can result in permanent damage to gas valve or times before locking out the gas valve. The ignition overfire.
  • Page 47 High Altitude Information NOTE: In Canada, certification for installations at elevations over 4500 feet (1371 m) is the jurisdiction of local authorities. Units may be installed at altitudes up to 10,000 ft. above sea level. See Table 11 for de-rate manifold values. Units installed at altitude of 7501 - 10,000 feet require an orifice change.

  • Page 48: Testing For Proper Venting And Sufficient Combustion Air For Non-Direct Vent Applications

    Testing for Proper Venting and Sufficient Combustion Air for Non-Direct Vent Applications Seal any unused openings in the venting system. Visually inspect the venting system for proper size WARNING and horizontal pitch. Determine there is no blockage CARBON MONOXIDE POISONING HAZARD or restriction, leakage, corrosion, or other deficiencies which could cause an unsafe condition.
  • Page 49 Thermostat Heat Anticipation speed to maintain the temperature rise within the range shown on the unit nameplate. See Table 13 for allowable Set the heat anticipator setting (if adjustable) according to heating speeds. Increase the blower speed to decrease the amp draw listed on the wiring diagram that is attached the temperature.

  • Page 50: Blower Performance

    Blower Performance 96G1UHE 030*B08 Performance (Less Filter) External Air Volume / Watts at Various Blower Speeds Static High Medium - High Medium Medium - Low Pressure Watts Watts Watts Watts Watts in. w.c. 0.00 1125 1015 0.10 1070 0.20 1035 0.30...
  • Page 51 96G1UHE 090*C16 Performance (Less Filter) External Air Volume / Watts at Various Blower Speeds Static High Medium - High Medium Medium - Low Pressure Watts Watts Watts Watts Watts in. w.c. 0.00 1765 1535 1410 1315 1155 0.10 1735 1500...

  • Page 52: Service

    Winterizing and Condensate Trap Care Service 1. Turn off power to the furnace. Have a shallow pan ready to empty condensate water. Remove the clean out cap from the condensate trap WARNING and empty water. Inspect the trap then reinstall the clean out cap.
  • Page 53 19. Remove the primary limit from the vestibule panel. 41. Reconnect flame rollout switch wires. 20. Remove top cap screws to allow top cap to be 42. Reconnect sensor wire and reconnect 2 pin plug from tilted upward to allow clearance for removing heat ignitor.

  • Page 54: Planned Service

    Planned Service Return air duct - Must be properly attached and provide A service technician should check the following items during an annual inspection. Power to the unit must be an air seal to the unit. shut off for safety. Operating performance - Unit must be observed during Fresh air grilles and louvers (on the unit and in the operation to monitor proper performance of the unit and...

  • Page 55: Repair Parts List

    Table 15. Diagnostic Codes Repair Parts List The following repair parts are available through Allied Air dealers. When ordering parts, include the complete furnace model number listed on the CSA nameplate. All service must be performed by a licensed professional installer (or equivalent), service agency, or gas supplier.
  • Page 56 Requirements for Commonwealth of Massachusetts Modifications to NFPA-54, Chapter 10 INSPECTION. The state or local gas inspector of the side wall, horizontally vented, gas-fueled equipment Revise NFPA-54 section 10.8.3 to add the following shall not approve the installation unless, upon requirements: inspection, the inspector observes carbon monoxide For all side wall, horizontally vented, gas-fueled equipment...

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