Table of Contents
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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.
As with any mechanical equipment, personal injury can
result from contact with sharp sheet metal edges. Be
careful when you handle this equipment.
Unit Dimensions ......................................................................2
A80UH1E & 80G1UHE Gas Furnace ......................................3
Shipping and Packing List .......................................................3
Safety Information ...................................................................3
Use of Furnace as a Construction Heater ...............................4
General ....................................................................................5
Combustion, Dilution & Ventilation Air .....................................5
Setting Equipment ...................................................................8
Filters .....................................................................................11
Duct System ..........................................................................11
Venting...................................................................................12
*P507330-01*
(P) 507330-01
507330-01
INSTALLATION INSTRUCTIONS
A80UH1E & 80G1UHE
Warm Air Gas Furnace
This manual must be left with the homeowner for future reference.
CAUTION
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.
Table of Contents
Gas Piping .............................................................................19
Electrical ................................................................................21
Unit Start-Up ..........................................................................25
Heating Sequence Of Operation ..........................................26
Gas Pressure Adjustment ......................................................26
High Altitude ..........................................................................27
Other Unit Adjustments..........................................................28
Blower Performance ..............................................................29
Service...................................................................................31
Repair Parts List ....................................................................32
Issue 1624
WARNING
Manufactured By
Allied Air Enterprises LLC
A Lennox International, Inc. Company
215 Metropolitan Drive
West Columbia, SC 29170
Page 1 of 34
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Summary of Contents for Allied Air A80UH1E
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Page 1: Table Of Contents
Table of Contents Unit Dimensions ..............2 Gas Piping ................19 A80UH1E & 80G1UHE Gas Furnace ........3 Electrical ................21 Shipping and Packing List ............3 Unit Start-Up ................25 Safety Information ..............3 Heating Sequence Of Operation ..........26... -
Page 2: Unit Dimensions
A80UH1E & 80G1UHE Unit Dimensions - inches (mm) NOTE -C20 and D20 size units installed in upflow applications that require air volumes of 1800 cfm (850 L/s or greater must have one of the following: 1. Single side return air with transition, to accommodate 20 x 25 x 1 in. -
Page 3: A80Uh1E & 80G1Uhe Gas Furnace
A80UH1E & 80G1UHE Gas Furnace The A80UH1E & 80G1UHE gas furnace is shipped ready CAUTION for installation in the upflow or horizontal right position (for horizontal left position the combustion air pressure switch As with any mechanical equipment, personal injury can must be moved). -
Page 4: Use Of Furnace As A Construction Heater
This furnace must be installed so that its electrical Use of Furnace as a Construction Heater components are protected from water. Allied Air does not recommended the use of these units as a Installed in Combination with a Cooling Coil construction heater during any phase of construction. Very... -
Page 5: General
General Combustion, Dilution & Ventilation Air In the past, there was no problem in bringing in sufficient These instructions are intended as a general guide and do outdoor air for combustion. Infiltration provided all the air that not supersede local codes in any way. Consult authorities was needed. - Page 6 All gas fired appliances require air for the combustion Equipment in Confined Space - All Air From Inside process. If sufficient combustion air is not available, the furnace or other appliances will operate inefficiently and unsafely. Enough air must be provided to meet the needs of all fuel burning appliances and appliances such as exhaust fans which force air out of the house.
- Page 7 When ducts are used, they shall be of the same cross EQUIPMENT IN CONFINED SPACE sectional area as the free area of the openings to which they (ALL AIR FROM OUTSIDE) connect. The minimum dimension of rectangular air ducts shall be no less than 3 inches (75 mm). In calculating free area, the blocking effect of louvers, grilles, or screens must be considered.
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Page 8: Setting Equipment
Setting Equipment Upflow Applications Allow for clearances to combustible materials as indicated WARNING on the unit nameplate. Minimum clearances for closet or alcove installations are shown in Figure 8. Do not install the furnace on its front or its back. Do not connect the return air ducts to the back of the furnace. - Page 9 Return Air - Upflow Applications Return air can be brought in through the bottom or either Single Side Return Air side of the furnace installed in an upflow application. If the (with transition and filter) furnace is installed on a platform with bottom return, make an airtight seal between the bottom of the furnace and the platform to ensure that the furnace operates properly and safely.
- Page 10 The furnace can be installed in horizontal applications. Remove the two screws that secure the bottom cap to the Order horizontal suspension kit (51W10) from Allied Air, or furnace. Pivot the bottom cap down to release the bottom use equivalent suspension method.
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Page 11: Filters
Horizontal Application Unit installed on Platform Table 1 Duct System Use industry approved standards (such as those published by Air Conditioning Contractors of America or American Society of Heating, Refrigerating and Air Conditioning Engineers) to size and install the supply and return air duct Figure 14 system. -
Page 12: Venting
Venting 1. Remove the four mounting screws (Figure 15) which A 4 inch diameter flue transition is factory installed on the secure the combustion air inducer / pressure switch combustion air inducer outlet of all models. Figure 16 assembly to the orifice plate. Lift the assembly and shows the combustion air inducer as shipped from rotate it 90°... - Page 13 HORIZONTAL LEFT POSITION HORIZONTAL RIGHT POSITION Top Vent discharge Top Vent Discharge • Disconnect pressure switch hose from barbed fitting on the pressure switch assembly. Remove pressure switch assembly (1 screw) and • Gas supply piping must be brought into the unit from the bottom in order cut wire tie to free pressure switch wires.
- Page 14 These series units are classified as fan assisted Category Use self drilling sheet metal screws or a mechanical fastener I furnaces when vertically vented according to the latest to firmly secure the vent pipe to the round collar of the flue edition of National Fuel Gas Code (NFPA 54 / ANSI Z223.1) transition.
- Page 15 Common Venting Using Tile Lined Interior Masonry Chimney and Combined Vent Connector NOTE: Refer to provided venting tables for installations. NOTE: The chimney must be properly sized per provided venting tables or lined with listed metal lining system. Figure 25 DO NOT insulate the space between the liner and the Do not install a manual damper, barometric draft regulator, chimney wall with puffed mica or any other loose granular...
- Page 16 5. Multiple appliance vents - The flow area of the largest 13. When the vent connector used for Category I appliances section of vertical vent or chimney shall not exceed 7 must be located in or pass through a crawl space, attic or times the smallest listed appliance categorized vent other areas which may be cold, that portion of the vent area, drafthood outlet area or flue collar area unless...
- Page 17 Capacity of Type B Double Wall Vents with Type B Double Wall Connectors Serving a Single Category I Appliance NOTE: Single appliance venting configureations with zero lateral lengths are assumed to have no elbows in the vent system. For all other vent configurations, the vent system is assumed to have two 90 °...
- Page 18 Vent Connector Capacity Type B Double Wall Vents with Type B Double Wall Connectors Serving Two or More Category I Appliances Table 4 Common Vent Capacity Type B Double Wall Vents with Type B Double Wall Connectors Serving Two or More Category I Appliances Table 5 Page 18 of 34 Issue 1624...
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Page 19: Gas Piping
Removal of the Furnace from Common Vent Resize the common venting system to the minimum vent In the event that an existing furnace is removed from a pipe size determined by using the appropriate tables in venting system commonly run with separate gas appliances, Appendix G. - Page 20 Gas Pipe Capacity - ft³/hr (m³/hr) Note: Capacity given in cubic feet (m³) of gas per hour and based on 06.0 specific gravity gas. Table 6 NOTE: BLACK IRON PIPE ONLY TO BE ROUTED INSIDE OF CABINET Figure 26 Horizontal Applications Possible Gas Piping Configurations NOTE: BLACK IRON PIPE ONLY TO BE ROUTED INSIDE OF CABINET Figure 27 Page 20 of 34...
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Page 21: Electrical
Leak Check The unit is equipped with a field make-up box on the left After gas piping is completed, carefully check all piping hand side of the cabinet. The make-up box may be moved connections (factory and field installed) for gas leaks. Use to the right side of the furnace to facilitate installation. - Page 22 Before connecting the thermostat, check to make sure the Generator Use - Voltage Requirements wires will be long enough for servicing at a later date. Make The following requirements must be kept in mind when sure that thermostat wire is long enough to facilitate future specifying a generator for use with this equipment: removal of blower for service.
- Page 23 Wiring Diagram Figure 32 507330-01 Issue 1624 Page 23 of 34...
- Page 24 Failure Codes Figure 33 Integrated Control (Automatic Hot Surface Ignition System) Figure 34 Page 24 of 34 Issue 1624 507330-01...
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Page 25: Unit Start-Up
Unit Start-Up 6. Move switch on gas valve to OFF. Do not force. See Figure 35. FOR YOUR SAFETY READ BEFORE LIGHTING UNIT. 7. Wait five minutes to clear out any gas. If you then smell gas, STOP! Immediately call your gas supplier from a neighbor’s phone. -
Page 26: Heating Sequence Of Operation
Heating Sequence Of Operation NOTE: To obtain accurate reading, shut off all other gas See figure 36. appliances connected to meter. 1. When thermostat calls for heat, combustion air blower starts. Supply Pressure Measurement 2. Combustion air pressure switch proves blower operation. A threaded plug on the inlet side of the gas valve provides Switch is factory set and requires no adjustment. -
Page 27: High Altitude
High Altitude This furnace is carefully designed for optimal performance under a wide range of operating conditions. To ensure proper operation at higher altitudes, certain adjustments and/or kits may be required. Manifold Pressure – Between 2000 and 7500 ft, certain units require manifold pressure adjustments specified in Table 9. Manifold pressure should be measured, and adjusted as required during unit start up. -
Page 28: Other Unit Adjustments
Fan Control Blower Speeds The fan on time of 45 seconds is not adjustable. The heat Follow the steps below to change the blower speeds. fan off delay (amount of time that the blower operates after 1. Turn off electrical power to furnace. the heat demand has been satisfied) may be adjusted by 2. - Page 29 Blower Data A80UH1E & 80G1UHE 507330-01 Issue 1624 Page 29 of 34...
- Page 30 Blower Data A80UH1E & 80G1UHE Page 30 of 34 Issue 1624 507330-01...
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Page 31: Service
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. -
Page 32: Repair Parts List
Figure 38 Repair Parts List The following repair parts are available through independent Allied Air dealers. When ordering parts, include the complete furnace model number listed on the CSA International nameplate — Example: A801UH045JP24A-01. All service must be performed by a licensed professional installer (or equivalent), service agency, or gas supplier. -
Page 33: Issue
REQUIREMENTS for COMMONWEALTH of MASSACHUSETTS 4. INSPECTION. The state or local gas inspector of the Modifications to NFPA-54, Chapter 10 - 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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Questions and answers
Where is the furnace filter on this model and is airflow to the blower motor up or down, which way should the filter arrow go, up or down? Thank you!!
The furnace filter for the Allied Air A80UH1E model can be located in different positions based on the installation setup: single side return, bottom return, or both side return. The filter should be rated for high-velocity airflow. The filter arrow should point in the direction of airflow toward the blower motor, which typically means pointing up in an upflow installation.
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