Allied WARM AIR GAS FURNACE 92G1UH manual

506724-01 Page 1 of 57 Issue 1 108 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. When you see this symbol on labels or in manuals, be alert[...]

506724-01 Page 2 of 57 Issue 1 108 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. mm 283 11-1/8 238 9-3/8 194 7-5/8 070-08 090-16 110-16 110-20 95G1UH/92G1UH 070-12 045-12 045-08 A95UH, A93UH, 95G1UH & 92G1UH Unit Dimensions - inches (mm) 1 [...]

506724-01 Page 3 of 57 Issue 1 108 EXP ANDED VIEW Figure 1[...]

506724-01 Page 4 of 57 Issue 1 108 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. The bottom panel must be removed if the unit is to be installed in horizont al or [...]

506724-01 Page 5 of 57 Issue 1 108 Installation 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. NOTE: For installation on combustible floo[...]

506724-01 Page 6 of 57 Issue 1 108 • 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. • One hundred percent (100%) outdoor air must be provided for combustion air[...]

506724-01 Page 7 of 57 Issue 1 108 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. In the absenc[...]

506724-01 Page 8 of 57 Issue 1 108 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. These openings must communicate directly or by duc[...]

506724-01 Page 9 of 57 Issue 1 108 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. Also consider gas supply connections, electrical supply , ve[...]

506724-01 Page 10 of 57 Issue 1 108 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. In platform inst allations with furnace r[...]

506724-01 Page 11 of 57 Issue 1 108 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. Horizontal Applications W ARNING Do not install the furnace on it s front or its back.[...]

506724-01 Page 12 of 57 Issue 1 108 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. A horizontal suspension kit (51W10) may be ordered from y[...]

506724-01 Page 13 of 57 Issue 1 108 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. See Figure 13. Filters This unit is not equipped with a filter or rack. A field provided fi[...]

506724-01 Page 14 of 57 Issue 1 108 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. IMPORT ANT Use PVC primer and solvent cement or ABS solvent [...]

506724-01 Page 15 of 57 Issue 1 108 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. If end is not chamfered, edge of pipe may remove cement from fitting sock[...]

506724-01 Page 16 of 57 Issue 1 108 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. 7. Immediately af ter applying last coat of cement to pipe, and while both ins[...]

506724-01 Page 17 of 57 Issue 1 108 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. In Direct V ent installations, combustion air is taken from outdoors [...]

506724-01 Page 18 of 57 Issue 1 108 T ABLE 5 A93UH and 92G1UH Maximum Allowable Int ake or Exhaust V ent Length in Feet *Size i ntake and exhaust pipe length separately . V alues in t able ar e for Intake OR Exhaust, not combined total. Both Intake an d E xhaust m us t be same pipe size. St andard T ermination at Elevation 0 − 10,000 Number Of 90[...]

506724-01 Page 19 of 57 Issue 1 108 T ABLE 5 Continued A95UH and 95G1UH Maximum Allowable Int ake or Exhaust V ent Length in Feet *Size i ntake and exhaust pipe length separately . V alues i n table are for Intake OR Exhaust, not combined total. Both Int ake an d Ex haus t mu st be sam e pip e siz e. St andard T ermination at Elevation 0 − 4,500 [...]

506724-01 Page 20 of 57 Issue 1 108 FIGURE 22 TYPICAL EXHAUST PIPE CONNECTIONS IN UPFLOW DIRECT OR NON−DIRECT VENT APPLICA TIONS TRANSITION 2” 2” 2” 3” 2” 2” or Pipe size determined in table 5 DO NOT transition from smaller to larger pipe in horizontal runs of exhaust pipe. EXHAUST *2” * When transitioning up in pipe size, use the s[...]

506724-01 Page 21 of 57 Issue 1 108 Int ake Piping (Figures 24 through 27) This gas furnace may be installed in either direct vent or non-direct vent applications. In non-direct vent applications, when intake air will be drawn into the furnace from the surrounding space, the indoor air quality must be considered and guidelines listed in Combustion,[...]

506724-01 Page 22 of 57 Issue 1 108 1. Use transition solvent cement or a sheet metal screw to secure the intake pipe to the inlet air connector . 2. Route piping to outside of structure. Continue with installation following instructions given in general guide lines for piping terminations and in intake and exhaust piping terminations for direct ve[...]

506724-01 Page 23 of 57 Issue 1 108 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 int ake piping as shown in figure 26 or 27. Maintain a[...]

506724-01 Page 24 of 57 Issue 1 108 FIGURE 28 VENT TERMINA TION CLEARANCES FOR NON−DIRECT VENT INST ALLA TIONS IN THE USA AND CANADA K D E L B C F G A B J A M I H INSIDE CORNER DET AIL VENT TERMINAL AIR SUPPL Y INLET AREA WHERE TERMINAL IS NOT PERMITTED Fixed Closed Operable B Fixed Closed Operable B B A = B = C = D = E = F = G = H = I = J = K = [...]

506724-01 Page 25 of 57 Issue 1 108 FIGURE 29 VENT TERMINA TION CLEARANCES FOR DIRECT VENT INST ALLA TIONS IN THE USA AND CANADA K D E L B C F G A B J A M I H INSIDE CORNER DET AIL VENT TERMINAL AIR SUPPL Y INLET AREA WHERE TERMINAL IS NOT PERMITTED Fixed Closed Operable B Fixed Closed Operable B B A = B = C = D = E = F = G = H = I = J = K = L = M [...]

506724-01 Page 26 of 57 Issue 1 108 Details of Int ake and Exhaust Piping T erminations for Direct V ent Installations NOTE: In Direct V ent installations, combustion air is taken from outdoors and flue gases are discharged to outdoors. NOTE: Flue gas may be slightly acidic and may adversely affect some building materials. If any vent termination i[...]

506724-01 Page 27 of 57 Issue 1 108 FIGURE 31 FIELD SUPPLIED W ALL TERMINA TION See venting table 5 for maximum venting lengths with this arrangement. * Use wall support every 24" (610 mm). Use two wall supports if extension is greater than 24" (610 mm) but less than 48" (1219 mm). NOTE − One wall support must be 6" (152 mm) f[...]

506724-01 Page 28 of 57 Issue 1 108 FIGURE 32 C A E D B A B D D B C A C 12" 1 1 2 2 2" (51mm) V ent Pipe 3" (76mm) V ent Pipe A − Clearance above grade or average snow accumulation B −Horizontal separation between intake and exhaust C −Minimum from end of exhaust to inlet of intake D −Exhaust pipe length E −W all support di[...]

506724-01 Page 29 of 57 Issue 1 108 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. Intake piping should be as short as possible. See Figures 31 and 33. 6. On field supplied terminations, a minimum distanc[...]

506724-01 Page 30 of 57 Issue 1 108 Det ails 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. Figures 39 through 42 show typical terminations. [...]

506724-01 Page 31 of 57 Issue 1 108 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 41. When exhaust piping must be run up an outside wall, any reduction in exhaust pipe size must be done after the final elbow . FIGURE 39 NON?[...]

506724-01 Page 32 of 57 Issue 1 108 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. 1. Determine which side condensate piping will exit the unit, location of trap, field-pr[...]

506724-01 Page 33 of 57 Issue 1 108 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. Condensate drain line should be routed within the conditioned space to avoid freezing of cond[...]

506724-01 Page 34 of 57 Issue 1 108 FIGURE 47 Adapter 1/2 inch slip X 1/2 inch mpt (Not Furnished) Drain T rap Assembly (Furnished) Ve n t Drain T rap Clean Out 5 Feet Maximum Coupling 1/2 inch slip X slip (Not Furnished) 90 ° Elbow 1/2 inch PVC (Not Furnished) 1/2 inch PVC Pipe (Not Furnished) 1/2 inch PVC Pipe (Not Furnished) 1 (25) Minimum Abov[...]

506724-01 Page 35 of 57 Issue 1 108 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 49. Move Bellows grommet to side which gas line enters. Ensure opposite gas line hole is plugged with supplied plug. 2. When connec[...]

506724-01 Page 36 of 57 Issue 1 108 GROUND JOINT UNION FIELD PROVIDED AND INST ALLED Left Side Piping (St andard) DRIP LEG MANUAL MAIN SHUT−OFF VA LV E Right Side Piping (Alternate) NOTE − BLACK IRON PIPE ONL Y TO BE ROUTED INSIDE OF CABINET Bellows Grommet Plug Plug GROUND JOINT UNION DRIP LEG MANUAL MAIN SHUT−OFF VA LV E Gas V alve Gas V al[...]

506724-01 Page 37 of 57 Issue 1 108 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. Conduct the following test while each appliance is operating a[...]

506724-01 Page 38 of 57 Issue 1 108 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. Precautions will help to avoid control exposure to electrostatic discharge by p[...]

506724-01 Page 39 of 57 Issue 1 108 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. 3. When there is a cooling demand, the [...]

506724-01 Page 40 of 57 Issue 1 108 TYPICAL WIRING DIAGRAM Figure 55[...]

506724-01 Page 41 of 57 Issue 1 108 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. Immediately call a qualified service technician to inspect the furnace and to replace all gas[...]

506724-01 Page 42 of 57 Issue 1 108 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. Follow the lighting instructions to place the unit into operation. 2. Set the thermos[...]

506724-01 Page 43 of 57 Issue 1 108 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.) Divide by two and compare to time in T able 9. If manifold pressure matches [...]

506724-01 Page 44 of 57 Issue 1 108 Na t u r al to LP / Propane LP / Propane to Na t u ra l H i gh Al t i t ude Na t u ra l B u rn er O r if ic e Kit H i g h A lt i t ude LP/ Propane B urn er Ori fi c e Kit A l l 68W 75 *† 73W 80* 51W 01 68W 70* † * C onv ers i on requi res i ns t al l at i on of a gas v al v e regul at or s pri ng wh i c h i s[...]

506724-01 Page 45 of 57 Issue 1 108 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. The following [...]

506724-01 Page 46 of 57 Issue 1 108 Other Unit Adjustments 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. These limit s are factory set and require no a[...]

506724-01 Page 47 of 57 Issue 1 108 BL OW ER D A T A A93UH1D / 92G1UH A93UH1D / 92G1UH 070*08B PERFORMANCE (Less Filter) External Static Pressure in. w .g. Air V olume / Watts at V arious Blower Speeds High Medium- High Medium- Low Low cfm W atts cfm W atts cfm W atts cfm W atts 0.00 1 140 455 920 365 765 295 710 265 0.10 1 135 445 900 360 765 290 [...]

506724-01 Page 48 of 57 Issue 1 108 BL OW ER D A T A A93UH1D / 92G1UH Continued A93UH1D / 92G1UH 110*20C PERFORMANCE (Less Filter) External Static Pressure in. w .g. Air V olume / Watts at Different Blower Speeds Bottom Return Air , Side Return Air with Optional Return Air Base, Return Air from Both Sides or Return Air from Bottom and One Side. Sin[...]

506724-01 Page 49 of 57 Issue 1 108 BL OWER DA T A A95UH1D / 95G1UH A95UH1D / 95G1UH 045*12B PERFORMANCE (Less Filter) External Static Pressure in. w .g. Air V olume / Watts at V arious Blower Speeds High Medium- High Medium- Low Low cfm W atts cfm W atts cfm W atts cfm Watts 0.00 1605 700 1370 590 1 160 475 1010 400 0.10 1600 680 1355 565 1 155 46[...]

506724-01 Page 50 of 57 Issue 1 108 BL OWER DA T A A95UH1D / 95G1UH Continued A95UH1D / 95G1UH 110*20C PERFORMANCE (Less Filter) External Static Pressure in. w .g. Air V olume / W atts at Different Blower Speeds Bottom Return Air , Side Return Air with Optional Return Air Base, Return Air from Both Sides or Return Air from Bottom and One Side. Sing[...]

506724-01 Page 51 of 57 Issue 1 108 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. No further lubrication is needed. The blower access panel must be[...]

506724-01 Page 52 of 57 Issue 1 108 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. Remove two screws from blower rails whic[...]

506724-01 Page 53 of 57 Issue 1 108 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 . Burners - Must b[...]

506724-01 Page 54 of 57 Issue 1 108 REP AIR P ARTS LIST The following repair parts 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 . Cabinet Parts [...]

506724-01 Page 55 of 57 Issue 1 108 St art−Up & Performance Check List Gas Supply Pressure SUPPL Y AIR Line V oltage GAS SUPPL Y Natural Gas LP Prop ane Gas Piping Connections Tight Leak T ested 1 INT AKE / EXHAUST PIPE All Joint s Primed and Glued T erminations Installed Properly Pipes Supported Condensate T rap Primed / Line Sloped Heat Cab[...]

506724-01 Page 56 of 57 Issue 1 108 Contractor’s: Name_________________________T elephone_____________C hecklist Completed____________________ Job Address_____________________________________T echnician’s Name___________________________________ 1 HEA TING MODE COMBUSTION SAMPLE CO 2 % ______ CO PPM_______ 2 INDOOR BLOWER AMPS______ 3 TEMPERA TU[...]

506724-01 Page 57 of 57 Issue 1 108 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 requirements: For all side wall, horizontally vented, gas-fueled equipment installed in every dwelling, building or structure used in whole or in part for residential purposes,[...]