Allied Air Enterprises A93DF, A95DF, 92G1DF, 95G1DF Electrical SHOCK, Fire Or Explosion Hazard

Page 42

Service

WARNING

ELECTRICAL SHOCK, FIRE,

OR EXPLOSION HAZARD.

Failure to follow safety warnings exactly could result in dangerous operation, serious injury, death or property damage.

Improper servicing could result in dangerous operation, serious injury, death, or property damage.

Before servicing, disconnect all electrical power to furnace.

When servicing controls, label all wires prior to disconnecting. Take care to reconnect wires correctly. Verify proper operation after servicing.

At the beginning of each heating season, system should be checked as follows by a qualified service technician:

Blower

Check the blower wheel for debris and clean if necessary. The blower motors are prelubricated for extended bearing life. No further lubrication is needed.

WARNING

The blower access panel must be securely in place when the blower and burners are operating. Gas fumes, which could contain carbon monoxide, can be drawn into living space resulting in personal injury or death.

Filters

All air filters are installed external to the unit. Filters should be inspected monthly. Clean or replace the filters when necessary to ensure proper furnace operation. Table 3 lists recommended filter sizes.

Exhaust and air intake pipes

Check the exhaust and air intake pipes and all connections for tightness and to make sure there is no blockage.

NOTE: After any heavy snow, ice or frozen fog event the furnace vent pipes may become restricted. Always check the vent system and remove any snow or ice that may be obstructing the plastic intake or exhaust pipes.

Electrical

1.Check all wiring for loose connections.

2.Check for the correct voltage at the furnace (furnace operating). Correct voltage is 120 VAC ± 10%.

3.Check amp-draw on the blower motor with the blower compartment access panel in place.

Motor Nameplate__________Actual__________

Winterizing and Condensate Trap Care

1.Turn off power to the furnace.

2.Have a shallow pan ready to empty condensate water.

3.Remove the clean out cap from the condensate trap and empty water. Inspect the trap then reinstall the clean out cap.

Cleaning Heat Exchanger

If cleaning the heat exchanger becomes necessary, follow the below procedures and refer to Figure 1 when disassembling unit. Use papers or protective covering in front of furnace while removing heat exchanger assembly.

1.Turn off electrical and gas supplies to the furnace.

2.Remove the furnace access panels.

3.Disconnect the 2 wires from the gas valve.

4.Remove gas supply line connected to gas valve. Remove gas valve/manifold assembly.

5.Remove sensor wire from sensor. Disconnect 2 pin plug from the ignitor.

6.Disconnect wires from flame rollout switches.

7.Loosen clamps at vent elbow. Disconnect condensate drain tubing from flue collar and remove the vent elbow.

8.Remove four burner box screws at the vestibule panel and remove burner box. Set burner box assembly aside.

NOTE: If necessary, clean burners at this time. Follow procedures outlined in Burner Cleaning section.

9.Mark and disconnect all combustion air pressure tubing from cold end header collector box.

10.Mark and remove wires from pressure switches. Remove pressure switches. Keep tubing attached to pressure switches.

11.Disconnect the plug from the combustion air inducer. Remove two screws which secure combustion air inducer to collector box. Remove combustion air inducer assembly. Remove ground wire from vest panel.

12.Remove electrical junction box from the side of the furnace.

13.Mark and disconnect any remaining wiring to heating compartment components. Disengage strain relief bushing and pull wiring and bushing through the hole in the blower deck.

14.Remove the primary limit from the vestibule panel.

15.Remove two screws from the front cabinet flange at the blower deck. Spread cabinet sides slightly to allow clearance for removal of heat exchanger.

16.Remove screws along vestibule sides and bottom which secure vestibule panel and heat exchanger assembly to cabinet. Remove two screws from blower rail which secure bottom heat exchanger flange. Remove heat exchanger from furnace cabinet.

17.Back wash heat exchanger with soapy water solution or steam. If steam is used it must be below 275°F (135°C).

18.Thoroughly rinse and drain the heat exchanger. Soap solutions can be corrosive. Take care to rinse entire assembly.

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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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