Allied Air Enterprises A93UH, A95UH, 95G1UH, 92G1UH 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 1 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).

3.Check amp-draw on the blower motor.

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 burner access panel.

3.Mark all gas valve wires and disconnect them from valve.

4.Remove gas supply line connected to gas valve.

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

6.Disconnect wires from flame rollout switches.

7.Remove four burner assembly screws at the vestibule panel and remove gas valve /manifold and burner box as a single unit.

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

9.Remove the clean-out cap on trap and drain. Replace cap.

10.Disconnect condensate drain line from the condensate trap. Remove condensate trap (it may be necessary to cut drain pipe). Remove the 1/2" NPT fitting from the cold end header box. Disconnect drain tubes from cold end header collector box.

11.Disconnect condensate drain tubes from flue collar. Remove screws that secures flue collar in place. Remove flue collar. It may be necessary to cut the exiting exhaust pipe for removal of the fitting.

12.Loosen two clamps from flexible no-hub exhaust collar.

13.Disconnect the 2–pin plug from the combustion air inducer. Remove screws which secure combustion air inducer to collector box. Remove combustion air inducer assembly. Remove ground wire.

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

15.Mark and remove wires from pressure switch. Remove pressure switch. Keep tubing attached to pressure switch.

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

17.Remove blower access panel.

18.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.

19.Remove the primary limit from the vestibule panel.

20.Remove top cap screws to allow top cap to be tilted upward to allow clearance for removing heat exchanger.

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Contents Table of Contents A95UH, A93UH, 95G1UH & 92G1UHA95UH, A93UH, 95G1UH & 92G1UH Unit Dimensions inches mm Front View Side ViewExpanded View Shipping and Packing List Safety InformationA95UH, A93UH, 95G1UH &92G1UH Gas Furnace Building CodesInstalled Locations Installed in Combination with a Cooling CoilUse of Furnace as a 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 Shipping Bolt Removal InstallationSetting Equipment Upflow ApplicationsInstallation Clearances Return Air GuidlinesSide Return Air With transition and filter Optional Return Air Base Upflow Applications Only Removing the Bottom PanelHorizontal Applications Horizontal Application Installation Clearances Suspended Installation of Horizontal UnitFilters Pipe & Fittings SpecificationsReturn Air -- Horizontal Applications Duct SystemPiping and Fittings Specifications Canadian Applications OnlyJoint Cementing Procedure Outdoor Termination Kits UsageExhaust Piping Figures 22 Exhaust Pipe Horizontal ApplicationMinimum Vent Pipe Lengths Maximum Allowable Vent Length Right Hand Discharge Shown Intake Piping Figures 24 through Typical AIR Intake Pipe Connections For Canadian Installations Only General Guidelines for Vent TerminationsFor NON-DIRECT Vent INSTALLATiONS in the USA and Canada Vent Termination ClearancesFor Direct Vent INSTALLATiONS in the USA and Canada 15F75 or 44J41 Field Supplied Wall TerminationDirect Vent Concentric Rooftop Termination Direct Vent Application Using Existing Chimney NON-DIRECT Vent Field Supplied Wall Termination NON-DIRECT Vent Application Using Existing ChimneyNON-DIRECT Vent Roof Termination KIT Condensate PipingCondensate Trap and Plug Locations Unit shown in upflow positionCondensate Trap Locations Unit shown in upflow position with remote trapGas Piping Leak CheckFire or Explosion Hazard Horizontal Applications Possible Gas Piping Configurations Carbon Monoxide Poisoning Hazard Accessory Terminals Precautions and ProceduresInterior MAKE-UP BOX Installation ElectricalIndoor Blower Speeds Typical Field Wiring DiagramFurnace & Condensing Unit Thermostat Designations Generator Use Voltage RequirementsTypical Wiring Diagram Integrated Control Automatic Hot Surface Ignition System Unit Start-UpPlacing the furnace into operation GAS Valve Shown in on Position Manifold Pressure Measurement Gas Pressure AdjustmentSupply Pressure Measurement High Altitude InformationCarbon Monoxide Poisoning Hazard Heat FAN-OFF Time Seconds Electrical SHOCK, Fire Or Explosion Hazard Cleaning the Burner Assembly Planned Service Failure CodesControl Panel Parts Repair Parts ListCabinet Parts Heating Parts Blower PartsUnit SET UP Unit Operation BELOW. Keep Clear of ALL Obstructions Manufacturer Requirements

92G1UH, 95G1UH, A95UH, A93UH specifications

Allied Air Enterprises is renowned for producing high-quality HVAC systems, and its models A93UH, 92G1UH, A95UH, and 95G1UH are no exception. These units exemplify cutting-edge technology, efficiency, and reliability, making them popular choices for residential and commercial applications.

The A93UH model is a high-efficiency gas furnace designed with advanced features that maximize performance while maintaining low operating costs. It boasts a 93% Annual Fuel Utilization Efficiency (AFUE) rating, which ensures that a significant portion of the fuel consumed translates into heat. The A93UH incorporates variable-speed blower technology, allowing for precise airflow adjustments that enhance comfort and energy savings.

Similarly, the 92G1UH is built to provide exceptional heating capabilities. With a robust construction and innovative design, this model also achieves a 92% AFUE rating. It features a durable heat exchanger and a reliable ignition system that ensures consistent performance. The 92G1UH is engineered for quiet operation, minimizing noise levels and contributing to a more comfortable indoor environment.

Moving on to the A95UH, this unit represents the pinnacle of efficiency with its impressive 95% AFUE rating. This model not only emphasizes energy savings but also focuses on long-term durability. Equipped with a two-stage gas valve, the A95UH allows for flexible heating based on demand, which translates into enhanced comfort and efficiency. Additionally, the integrated SmartComfort technology provides homeowners with user-friendly control options.

The 95G1UH model shares many of the same advanced features as the A95UH but is tailored for different installation scenarios. With a comparable efficiency rating, the 95G1UH emphasizes ease of maintenance and installation. Its compact design and lightweight construction make it an ideal choice for various settings where space is limited.

All four models incorporate the latest in comfort control technology, allowing for seamless connectivity and programmability. Homeowners can utilize smart thermostats to optimize their heating schedules, further enhancing energy savings. The featured robust warranty and service support from Allied Air Enterprises provide peace of mind, ensuring that these units will deliver reliable performance for years to come.

Overall, the A93UH, 92G1UH, A95UH, and 95G1UH models stand out in the HVAC market due to their efficiency, innovative features, and durability. These units cater to a variety of heating needs while keeping operational costs low, making them wise investments for any property owner.
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