Allied Air Enterprises A93DF, A95DF, 92G1DF, 95G1DF Removal of the Furnace from Common Vent

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Removal of the Furnace from Common Vent

In the event that an existing furnace is removed from a venting system commonly run with separate gas appliances, the venting system is likely to be too large to properly vent the remaining attached appliances.

Conduct the following test while each appliance is operating and the other appliances (which are not operating) remain connected to the common venting system. If the venting system has been installed improperly, you must correct the system as indicated in the general venting requirements section.

WARNING

CARBON MONOXIDE POISONING HAZARD

Failure to follow the steps outlined below for each appliance connected to the venting system being placed into operation could result in carbon monoxide poisoning or death.

The following steps shall be followed for each appliance connected to the venting system being placed into operation, while all other appliances connected to the venting system are not in operation.

1.Seal any unused openings in the common venting system.

2.Inspect the venting system for proper size and horizontal pitch. Determine that there is no blockage, restriction, leakage, corrosion, or other deficiencies which could cause an unsafe condition.

3.Close all building doors and windows and all doors between the space in which the appliances remaining connected to the common venting system are located and other spaces of the building. Turn ON clothes dryers and any appliances not connected to the common venting system. Turn ON any exhaust fans, such as range hoods and bathroom exhausts, so they will operate at maximum speed. Do not operate a summer exhaust fan. Close fireplace dampers.

4.Follow the lighting instructions. Turn ON the appliance that is being inspected. Adjust the thermostat so that the appliance operates continuously.

5.After the main burner has operated for 5 minutes, test for leaks of flue gases at the draft hood relief opening. Use the flame of a match or candle.

6.After determining that each appliance connected to the common venting system is venting properly, (step 3) return all doors, windows, exhaust fans, fireplace dampers, and any other gas burning appliances to their previous mode of operation.

7.If a venting problem is found during any of the preceding tests, the common venting system must be modified to correct the problems.

Resize the common venting system to the minimum vent pipe size determined by using the appropriate tables in Appendix G. These are in the current standards of the National Fuel Gas Code ANSI Z223.1.

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Issue 1109

506725-01

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Contents Table of Contents A95DF, A93DF, 95G1DF & 92G1DFTOP View Front View Side ViewParts Arrangement Shipping and Packing List Package 1 of 1 contains Safety InformationGas Furnace Building CodesInstalled in Combination with a Cooling Coil Locations and ClearancesUse of Furnace as Construction Heater Product Contains Fiberglass Wool Combustion, Dilution & Ventilation AirAir from Inside Unconfined SpaceConfined Space Equipment in Confined Space − ALL AIR from InsideAir from Outside Equipment in Confined Space − ALL AIR from OutsideInstallation Setting Equipment Shipping Bolt RemovalUnits with 1/2 HP Blower Motor Installation on Non-Combustible Flooring Figure Installation on Combustible Flooring FigureNON−COMBUSTIBLE Floor Opening Size Installation on Cooling Coil Cabinet Figure Combustible Flooring Base Opening SizeReturn Air Opening Downflow Units Piping and Fittings Specifications Canadian Applications Only Outdoor Termination Kits UsageStandard Concentric Joint Cementing Procedure Venting Practices Piping Suspension GuidelinesReplacing Furnace That WAS Part of a Common Vent System MIN. Vent Length Exhaust Piping FigureMinimum Vent Pipe Lengths ModelsA95DF / 95G1DF and A93DF / 92G1DF Typical Exhaust Pipe Connections Typical Intake Pipe Connections Direct Vent ApplicationsTypical AIR Intake Pipe Connections For Canadian Installations OnlyIntake Piping General Guidelines for Vent TerminationsInside Corner Detail No minimum to outside corner Exhaust Pipe Termination Size Reduction Direct Vent Roof Termination KITModel 51mm 76mm Direct Vent Application Using Existing Chimney Direct Vent Concentric Rooftop TerminationDirect Vent Concentric Wall Termination NON−DIRECT Vent Roof Termination KIT NON−DIRECT Vent Application Using Existing ChimneyNON−DIRECT Vent Field Supplied Wall Termination Extended NON−DIRECT Vent Field Supplied Wall TerminationCondensate Piping Unit with Evaporator CoilTrap / Drain Assembly Using 1/2 PVC or 3/4 PVC Gas Piping Leak CheckFire or Explosion Hazard GAS Pipe Capacity − FT 3 /HR kL/HR Removal of the Furnace from Common Vent Carbon Monoxide Poisoning HazardElectrical Precautions and ProceduresAccessory Terminals Electrostatic Discharge ESDIndoor Blower Speeds Generator Use Voltage RequirementsTypical Wiring Diagram Unit Start-Up Integrated ControlAutomatic Hot Surface Ignition System Placing the furnace into operationTurning Off Gas to Unit Priming Condensate TrapGas Valve Operation Figure Failure To OperateGAS Meter Clocking Chart Burner Orifice Conversion Kits at Varying Altitudes Carbon Monoxide Poisoning Hazard Temperature Rise Flame Rollout Switches TwoPressure Switch Primary LimitBlower Data A93DF1D / 92G1DF Blower Data A95DF1D / 95G1DF Electrical SHOCK, Fire Or Explosion Hazard Cleaning the Burner Assembly Planned Service Diagnostic CodesControl Panel Parts Repair Parts ListCabinet Parts Heating Parts Blower PartsDuct System Supply AIR Duct GAS SupplyIntake / Exhaust Pipe Return DuctUnit Operation Clear of ALL Obstructions Manufacturer Requirements

A95DF, 95G1DF, A93DF, 92G1DF specifications

Allied Air Enterprises offers a range of high-efficiency commercial and residential heating and cooling systems, with models like the 92G1DF, A93DF, 95G1DF, and A95DF gaining popularity for their cutting-edge technology and advanced features. Each of these models stands out in performance, reliability, and energy efficiency, making them excellent choices for diverse applications.

The 92G1DF model features a multi-stage gas valve that enhances temperature regulation, allowing for more precise heating. With an impressive Annual Fuel Utilization Efficiency (AFUE) rating, this furnace efficiently utilizes fuel, resulting in lower energy costs and reduced emissions. Its compact design makes it suitable for installations in tight spaces, while the durable heat exchanger extends the unit’s lifespan.

In contrast, the A93DF is engineered for enhanced comfort and flexibility. This model incorporates a variable-speed blower motor, which adjusts air circulation according to the heating demands in the space. This feature not only maximizes comfort by providing consistent temperatures but also promotes energy savings by reducing unnecessary power consumption. Additionally, the A93DF includes advanced diagnostic capabilities that simplify troubleshooting and maintenance, making it a favorite among HVAC professionals.

The 95G1DF is another noteworthy model that combines versatile performance with exceptional efficiency. This furnace boasts an AFUE rating of up to 95%, making it one of the most efficient models in its class. Its innovative design includes a secondary heat exchanger that captures additional heat from exhaust gases, optimizing energy utilization. Furthermore, the 95G1DF is equipped with an advanced control system that allows homeowners to set specific comfort levels.

Lastly, the A95DF model takes efficiency to a new level. With features such as a modulating gas valve and a variable-speed blower, this unit seamlessly adapts to changing heating needs. The A95DF not only heats a space but also enhances air quality through advanced filtration options. Its whisper-quiet operation adds to user satisfaction, making it ideal for residential settings.

In summary, Allied Air Enterprises' models 92G1DF, A93DF, 95G1DF, and A95DF demonstrate a commitment to innovation and energy efficiency, with features designed to provide superior comfort and reliability. With their advanced technologies and high-performance characteristics, these models are positioned as top contenders in the heating and cooling marketplace, ensuring that customers can enjoy a comfortable environment year-round.
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