Allied Air Enterprises 80G1UH, A80UH Setting Equipment, Upflow Applications

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Setting Equipment

Setting Equipment

WARNING

Do not install the furnace on its front or its back. Do not connect the return air ducts to the back of the furnace. Doing so will adversely affect the operation of the safety control devices, which could result in personal injury or death.

The gas furnace can be installed as shipped in either the upflow position or the horizontal position.

Select a location that allows for the required clearances that are listed on the unit nameplate. Also consider gas supply connections, electrical supply, vent connection, and installation and service clearances [24 inches (610 mm) at unit front]. The unit must be level.

NOTE: Units with 1/2 hp blower motors are equipped with three flexible legs and one rigid leg. See Figure 7. The rigid leg is equipped with a shipping bolt and a flat white plastic washer (rather than the rubber mounting grommet used with a flexible mounting leg). The bolt and washer must be removed before the furnace is placed into operation. After the bolt and washer have been removed, the rigid leg will not touch the blower housing.

Units with 1/2 HP

Blower Motor.

Figure 7

Upflow Applications

Allow for clearances to combustible materials as indicated on the unit nameplate. Minimum clearances for closet or alcove installations are shown in Figure 8.

Upflow Application Installation Clearances

*Front clearance In alcove Installation must be 24 in. (610 mm). Maintain a minimum of 24 in. (610 mm) for front service access.

‡ For installation on a combustible floor, do not install the furnace directly on carpeting, tile or other combustible materials other than wood flooring.

† Left side requires 3 inches if a single wall vent is used on 14-1/2 inch cabinets.

Figure 8

506526-01

Issue 1031

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Contents INSTALLATION INSTRUCTIONS TABLE OF CONTENTSA80UH & 80G1UH Warm Air Gas FurnaceA80UH & 80G1UH Unit Dimensions - inches mm FRONT VIEWSIDE VIEW 506526-01 A80UH & 80G1UHInstalled Locations Safety InformationDANGER A80UH & 80G1UH Gas FurnaceHeating Unit Installed Upstream of Cooling Unit Installed in Combination with a Cooling CoilTemperature Rise Use of Furnace as a Construction HeaterProduct Contains Fiberglass Wool GeneralAllied Air Enterprises, Inc 215 Metropolitan Drive West Columbia, SCConfined Space Unconfined SpaceEquipment in Confined Space - All Air From Inside Figure Air from InsideEQUIPMENT IN CONFINED SPACE Setting Equipment Upflow Application Installation ClearancesUpflow Applications 1800 cfm 850 L/s must have one of the following Return Air - Upflow Applications3.Bottom return air 4.Return air from both sides 5.Bottom and one side return airRemoving the Bottom Panel Horizontal Application Installatioin clearancesRemoving the Bottom Panel Figure Horizontal ApplicationsFilters Horizontal Application Unit installed on PlatformTable Duct System Supply Air PlenumMounting Screws Location Figure UPFLOW POSITION VentingUPFLOW POSITION Figure UPFLOW POSITIONHORIZONTAL LEFT POSITION Horizontal PositionFigure HORIZONTAL LEFT POSITION HORIZONTAL RIGHT POSITIONCommon Venting Using Metal Lined Masonry Chimney Venting Using a Masonry ChimneyVent Connection Figure IssueGeneral Venting Requirements Page 17 of IssueIssue Serving a Single Category I AppliancePage 18 of 506526-01Issue Serving a Single Category I AppliancePage 19 of 506526-01Serving Two or More Category I Appliances Vent Connector CapacityCommon Vent Capacity Serving Two or More Category I AppliancesServing Two or more Category I Appliances Table Table Common Vent CapacityVent Connector Capacity Serving Two or More Category I AppliancesCARBON MONOXIDE POISONING HAZARD Removal of the Furnace from Common VentIssue Page 22 ofGas Supply Gas PipingGas Pipe Capacity - ft³/hr m³/hr IssueFigure Horizontal Applications Possible Gas Piping ConfigurationsIssue Page 24 ofLeak Check INTERIOR MAKE-UPBOX INSTALLATION FigureFigure Electrical ELECTROSTATIC DISCHARGE ESD INTERIOR MAKE-UPBOX INSTALLATION FigureGenerator Use - Voltage Requirements Accessory TerminalsThermostat Condensing Unit Thermostat DesignationsIssue Wiring Diagram FigurePage 27 of 506526-01Typical Field Wiring Diagram Figure Integrated ControlAutomatic Hot Surface Ignition System Unit Start-UP FOR YOUR SAFETY READ BEFORE LIGHTING UNITPlacing the Furnace into Operation Gas Valve Operation FigureHeating Sequence Of Operation Figure Gas Pressure Adjustment Gas Flow ApproximateSupply Pressure Measurement Manifold Pressure MeasurementOther Unit Adjustments Manifold Pressure Settings and Pressure SwitchFlame Rollout Switches Pressure SwitchElectrical Thermostat Heat AnticipationBlower Speeds Electronic IgnitionELECTRICAL SHOCK, FIRE OR EXPLOSION HAZARD ServiceBlower Flue And ChimneyIssue Cleaning the Heat Exchanger and BurnersPage 34 of 506526-01NOx INSERTS Figure Remove 5 Screws If NecessaryFAILURE CODES PLANNED SERVICEIssue Page 36 ofCabinet Parts REPAIR PARTS LISTHeating Parts Control PanelIssue START-UP& PERFORMANCE CHECK LIST UNIT SET UPPage 38 of 506526-01UNIT OPERATION IssuePage 39 of 506526-01