Instruction/ maintenance manual of the product A95UH Allied Air Enterprises
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506501-01 Page 1 of 48 Issue 1031 *506501-01* This manual must be left with the homeowner for future reference. INST ALLA TION INSTRUCTIONS A95UH, A93UH, 95G1UH & 92G1UH W arm Air Gas Furnace Upflow/Horizont al Left and Right Air Discharge This is a safety alert symbol and should never be ignored.
506501-01 Page 2 of 48 Issue 1031 Model A 446 17-1/2 A95UH/A93UH B C in. mm in. mm in. mm 416 16-3/8 406 16 090-12 135-20 533 21 505 19-7/8 495 19-1/2 622 24-1/2 594 23-3/8 584 23 D in.
506501-01 Page 3 of 48 Issue 1031 EXP ANDED VIEW Figure 1.
506501-01 Page 4 of 48 Issue 1031 A95UH, A93UH, 95G1UH &92G1UH Gas Furnace The A95UH/A93UH/95G1UH & 92G1UH Category IV gas furnace is shipped ready for installation in the up flow or horizontal position. The furnace is shipped with the bottom panel in place.
506501-01 Page 5 of 48 Issue 1031 Installed Locations This furnace is CSA International certified for installation clearances to combustible material as listed on the unit nameplate and in the table in Figure 10. Accessibility and service clearances must take precedence over fire protection clearances.
506501-01 Page 6 of 48 Issue 1031 • Air filters must be installed in the system and must be maintained during construction. • Air filters must be replaced upon construction completion. • The input rate and temperature rise must be set per the furnace rating plate.
506501-01 Page 7 of 48 Issue 1031 air is brought into the house for combustion, negative pressure (outside pressure is greater than inside pressure) will build to the point that a down draft can occur in the furnace vent pipe or chimney . As a result, combustion gases enter the living space creating a potentially dangerous situation.
506501-01 Page 8 of 48 Issue 1031 Air from Outside If air from outside is brought in for combustion and ventilation, the confined space shall be provided with two permanent openings. One opening shall be within 12” (305 mm) of the top of the enclosure and one within 12” (305 mm) of the bottom.
506501-01 Page 9 of 48 Issue 1031 INST ALLA TION Setting Equipment Up flow Applications The gas furnaces can be installed as shipped in the upflow position. Refer to Figure 10 for clearances. Select a location that allows for the required clearances that are listed on the unit nameplate.
506501-01 Page 10 of 48 Issue 1031 W ARNING Improper installation of the furnace can result in personal injury or death. Combustion and flue products must never be allowed to enter the return air system or air in the living space. Use sheet met al screws and joint tape to seal return air system to furnace.
506501-01 Page 11 of 48 Issue 1031 Removing the Bottom Panel Remove the two screws that secure the bottom cap to the furnace. Pivot the bottom cap down to release the bottom panel. Once the bottom p anel has been removed, reinstall the bottom cap. See Figure 13.
506501-01 Page 12 of 48 Issue 1031 Suspended Installation of Horizont al Unit This furnace may be installed in either an attic or a crawl space. Either suspend the furnace from roof raf ters or floor joists, as shown in Figure 16, or install the furnace on a platform, as shown in Figure 17.
506501-01 Page 13 of 48 Issue 1031 Return Air -- Horizontal Applications Return air may be brought in only through the end of a furnace installed in the horizont al position. The furnace is equipped with a removable bottom panel to facilit ate installation.
506501-01 Page 14 of 48 Issue 1031 A95UH1D/A93UH1D/95G1UH & 92G1UH exhaust and intake connections are made of PVC. Use PVC primer and solvent cement when using PVC vent pipe. When using ABS vent pipe, use transitional solvent cement to make connections to the PVC fitting in the unit.
506501-01 Page 15 of 48 Issue 1031 Joint Cementing Procedure All cementing of joint s should be done according to the specifications outlined in ASTM D 2855. 1. Measure and cut vent pipe to desired length. 2. Debur and chamfer end of pipe, removing any ridges or rough edges.
506501-01 Page 16 of 48 Issue 1031 6. Promptly apply solvent cement to end of pipe and inside socket surface of fitting. Cement should be applied lightly but uniformly to inside of socket. T ake care to keep excess cement out of socket. Apply second coat to end of pipe.
506501-01 Page 17 of 48 Issue 1031 V ent Piping Guidelines This gas furnace can be inst alled as either a Non-Direct V ent or a Direct V ent gas central furnace. NOTE: In non-Direct V ent installations, combustion air is taken from indoors and flue gases are discharged outdoors.
506501-01 Page 18 of 48 Issue 1031 Maximum Allowable V ent Length T able 5.
506501-01 Page 19 of 48 Issue 1031 TYPICAL EXHAUST PIPE CONNECTIONS AND CONDENSA TE TRAP INST ALLA TION IN UPFLOW DIRECT OR NON-DIRECT VENT APPLICA TIONS Figure 22 Figure 23 TYPICAL EXHAUST PIPE CONNE.
506501-01 Page 20 of 48 Issue 1031 Int ake Piping (Figures 24 through 27) This gas furnace may be installed in either direct vent or non-direct vent applications.
506501-01 Page 21 of 48 Issue 1031 1. Use transition solvent cement or a sheet metal screw to secure the int ake pipe to the inlet air connector . 2. Route piping to outside of structure.
506501-01 Page 22 of 48 Issue 1031 Follow the next two steps when inst alling the unit in Non– Direct V ent applications where combustion air is taken from indoors and flue gases are discharged outdoors . 1. Use field-provided materials and the factory-provided air intake screen to route the intake piping as shown in figure 26 or 27.
506501-01 Page 23 of 48 Issue 1031 VENT TERMINA TION CLEARANCES FOR NON-DIRECT VENT INST ALLA TiONS IN THE USA AND CANADA Figure 28.
506501-01 Page 24 of 48 Issue 1031 VENT TERMINA TION CLEARANCES FOR DIRECT VENT INST ALLA TiONS IN THE USA AND CANADA Figure 29.
506501-01 Page 25 of 48 Issue 1031 Details of Int ake and Exhaust Piping T erminations for Direct V ent Installations NOTE: In Direct V ent installations, combustion air is t aken from outdoors and flue gases are discharged to outdoors.
506501-01 Page 26 of 48 Issue 1031 5. On field supplied terminations for sidewall exit, exhaust piping may extend a maximum of 12 inches (305 mm) for 2” PVC and 20 inches (508 mm) for 3” (76 mm) PVC beyond the outside wall. Int ake piping should be as short as possible.
506501-01 Page 27 of 48 Issue 1031 Details of Exhaust Piping T erminations for Non-Direct V ent Applications Exhaust pipes may be routed either horizontally through an outside wall or vertically through the roof. In attic or closet installations, vertical termination through the roof is preferred.
506501-01 Page 28 of 48 Issue 1031 3. If exhaust piping must be run up a sidewall to position above snow accumulation or other obstructions, piping must be supported every 24” (610 mm) as shown in Figure 39. When exhaust piping must be run up an outside wall, any reduction in exhaust pipe size must be done after the final elbow .
506501-01 Page 29 of 48 Issue 1031 NOTE: If necessary the condensate trap may be installed up to 5’ away from the furnace. Use PVC pipe to connect trap to furnace condensate outlet. Piping from furnace must slope down a minimum of 1/4” per ft. toward trap.
506501-01 Page 30 of 48 Issue 1031 Do not use copper tubing or existing copper condensate lines for drain line. CAUTION Condensate line must slope downward away from the trap to drain. If drain level is above condensate trap, condensate pump must be used.
506501-01 Page 31 of 48 Issue 1031 Gas Piping 1. Gas piping may be routed into the unit through either the left or right hand side. Supply piping enters into the gas valve from the side of the valve as shown in Figure 47. Move Bellows grommet to side which gas line enters.
506501-01 Page 32 of 48 Issue 1031 Figure 47 NOTE: BLACK IRON PIPE ONL Y TO BE ROUTED INSIDE OF CABINET Horizontal Applications Possible Gas Piping Configurations Figure 48.
506501-01 Page 33 of 48 Issue 1031 Removal of the Furnace from Common V ent 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.
506501-01 Page 34 of 48 Issue 1031 Electrical ELECTROST A TIC DISCHARGE (ESD) Precautions and Procedures Electrostatic discharge can af fect electronic components. T ake precautions during furnace installation and service to protect the furnace’s electronic controls.
506501-01 Page 35 of 48 Issue 1031 Indoor Blower Speeds 1. When the thermostat is set to “F AN ON”, the indoor blower will run continuously on the heating speed when there is no cooling or heating demand. 2. When the furnace is running in the heating mode, the indoor blower will run on the heating speed.
506501-01 Page 36 of 48 Issue 1031 TYPICAL WIRING DIAGRAM Figure 53.
506501-01 Page 37 of 48 Issue 1031 Unit St art-Up FOR YOUR SAFETY READ BEFORE OPERA TING Do not use this furnace if any part has been underwater . A flood-damaged furnace is extremely dangerous. Attempts to use the furnace can result in fire or explosion.
506501-01 Page 38 of 48 Issue 1031 Priming Condensate T rap The condensate trap should be primed with water prior to start-up to ensure proper condensate drainage. Either pour 10 fl. oz. (300 ml) of water into the trap, or follow these steps to prime the trap: 1.
506501-01 Page 39 of 48 Issue 1031 Gas Pressure Adjustment Gas Flow (Approximate) Furnace should operate at least 5 minutes before checking gas flow . Determine time in seconds for two revolutions of gas through the meter . (T wo revolutions assures a more accurate time.
506501-01 Page 40 of 48 Issue 1031 T esting for Proper V enting and Sufficient Combustion Air for Non-Direct V ent Applications 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.
506501-01 Page 41 of 48 Issue 1031 Other Unit Adjustment s Primary Limit The primary limit is located on the heating compartment vestibule panel. This limit is factory set and requires no adjustment. Flame Rollout Switches (T wo) These manually reset switches are located on the front of the burner box.
506501-01 Page 42 of 48 Issue 1031 Service 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.
506501-01 Page 43 of 48 Issue 1031 21. Remove two screws from the front cabinet flange at the blower deck. S pread cabinet sides slightly to allow clearance for removal of heat exchanger . 22. Remove screws along vestibule sides and bottom which secure vestibule panel and heat exchanger assembly to cabinet.
506501-01 Page 44 of 48 Issue 1031 PLANNED SERVICE A service technician should check the following items during an annual inspection. Power to the unit must be shut off for safety . Fresh air grilles and louvers (on the unit and in the room where the furnace is installed) - Must be open and unobstructed to provide combustion air .
506501-01 Page 45 of 48 Issue 1031 REP AIR P ARTS LIST The following repair part s are available through Allied Air dealers. When ordering parts, include the complete furnace model number listed on the CSA nameplate. All service must be performed by a licensed professional installer (or equivalent), service agency , or gas supplier .
506501-01 Page 46 of 48 Issue 1031 St art-Up & Performance Check List UNIT SET UP.
506501-01 Page 47 of 48 Issue 1031 UNIT OPERA TION Heating Mode Cooling Mode.
506501-01 Page 48 of 48 Issue 1031 REQUIREMENTS for COMMONWEAL TH of MASSACHUSETTS Modifications to NFP A-54, Chapter 10 Revise NFP A-54 section 10.8.3 to add the following requirement s: For all side.
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If you have not bought Allied Air Enterprises A95UH yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Allied Air Enterprises A95UH - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Allied Air Enterprises A95UH you will learn all the available features of the product, as well as information on its operation. The information that you get Allied Air Enterprises A95UH will certainly help you make a decision on the purchase.
If you already are a holder of Allied Air Enterprises A95UH, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Allied Air Enterprises A95UH.
However, one of the most important roles played by the user manual is to help in solving problems with Allied Air Enterprises A95UH. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Allied Air Enterprises A95UH along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
