Armstrong Air Conditioning A97DSMV, Installation Instructions Manual

Page 1: ...rts Arrangement 3 Gas Furnace 4 Shipping and Packing List 4 Safety Information 4 Use of Furnace as a Construction Heater 5 General 6 Setting Equipment 6 Filters 11 Duct System 9 Pipe and Fittings Spec...

Page 2: ...ir with transition to accommodate 20 x 25 x 1 in 508 x 635 x 25 mm air filter 2 Single side return air with optional RAB Return Air Base 3 Bottom return air 4 Return air from both sides 5 Bottom and o...

Page 3: ...507029 03 Page 3 of 68 Issue 1622 A97DSMV Exploded View Figure 1...

Page 4: ...ances in which odorant used with LP Propane gas can lose its scent In case of a leak LP Propane gas will settle close to the floor and may be difficult to smell An LP Propane leak detector should be i...

Page 5: ...struction Heater These units are not recommended for use as a construction heater during any phase of construction Very low return air temperature harmful vapors and operation of the unit with clogged...

Page 6: ...cated close to the vent termination point When the furnace is installed in an attic or other insulated space keep insulation away from the furnace When the furnace is installed in an unconditioned spa...

Page 7: ...MENT Figure 5 UNIT MUST BE LEVEL SIDE TO SIDE IN ALL APPLICATIONS FOR PROPER OPERATION A SLIGHT TILT TOWARD THE DRAIN IS RECOMMENDED FOR PROPER DRAINAGE TILT THE UNIT SLIGHTLY MAX 1 2 FROM BACK TO FRO...

Page 8: ...See Figure 6 Optional Return Air Base Upflow Applications Only NOTE Optional side return air filter kits are not for use with return air base 1 Both the unit return air opening and the base return ai...

Page 9: ...eturn air system to furnace In platform installations with furnace return the furnace should be sealed airtight to the return air plenum A door must never be used as a portion of the return air duct s...

Page 10: ...service and other necessary clearances See Figure 11 2 Construct a raised wooden frame and cover frame with a plywood sheet If unit is installed above finished space fabricate an auxiliary drain pan...

Page 11: ...on by reflected light of the heat exchanger for leaks after the furnace is installed If present this access panel must always be in place when the furnace is operating and it must not allow leaks into...

Page 12: ...rubber fittings to the white PVC pipes inside the vestibule area See Figure 13 3 Loosen the clamp which secures the pipes at the blower deck See Figure 13 4 Remove white PVC pipes slide up and out th...

Page 13: ...507029 03 Page 13 of 68 Issue 1622 OUTDOOR TERMINATION KITS USAGE Table 3...

Page 14: ...for PVC or use a clean dry cloth for ABS to clean inside socket surface of fitting and male end of pipe to depth of fitting socket DANGER DANGER OF EXPLOSION Fumes from PVC glue may ignite during syst...

Page 15: ...fer to Table 6 In some applications which permit the use of several different sizes of vent pipe a combination vent pipe may be used Contact Allied Air Technical Service for more information concernin...

Page 16: ...structions Turn on the appliance that is being inspected Adjust the thermostat so that the appliance operates continuously 5 After the main burner has operated for 5 minutes test for leaks of flue gas...

Page 17: ...507029 03 Page 17 of 68 Issue 1622 Table 5 Maximum Allowable Intake or Exhaust Vent Length feet...

Page 18: ...TYPICAL EXHAUST PIPE CONNECTIONS AND CONDENSATE TRAP INSTALLATION IN UPFLOW APPLICATIONS Figure 18 Figure 19 TYPICAL EXHAUST PIPE CONNECTIONS AND CONDENSATE TRAP INSTALLATION IN HORIZONTAL AIR APPLIC...

Page 19: ...507029 03 Page 19 of 68 Issue 1622 VENT TERMINATION CLEARANCES FOR DIRECT VENT INSTALLATiONS IN THE USA AND CANADA Figure 20...

Page 20: ...tion may not be necessary in some specific applications Do not use screens or perforated metal in exhaust terminations Doing so will cause freeze ups and may block the terminations IMPORTANT FOR CANAD...

Page 21: ...You may exit the intake on one side of the structure and the exhaust on another side Figure You may exit the exhaust out the roof and the intake out the side of the structure Figure 2 Intake and exhau...

Page 22: ...152 mm from top of each pipe intake and exhaust Field Supplied Wall Termination with Intake Elbow Figure 25 Field Supplied Wall Termination or 15F74 Wall Ring Termination Kit See venting Table 5 for...

Page 23: ...or other obstructions piping must be supported every 24 610 mm as shown in Figures 22 and 23 In addition close coupled wall termination must be extended for use in this application See Figures 22 and...

Page 24: ...507029 03 Page 24 of 68 Issue 1622 Figure 29...

Page 25: ...densate trap may be installed up to 5 ft away using PVC pipe from the furnace Piping from furnace must slope down a minimum of 1 4 per ft toward trap 1 Determine which side condensate piping will exit...

Page 26: ...nsate trap condensate pump must be used Condensate drain line should be routed within the conditioned space to avoid freezing of condensate and blockage of drain line If this is not possible a heat ca...

Page 27: ...507029 03 Page 27 of 68 Issue 1622 Figure 36 Trap Drain Assembly Using 1 2 PVC or 3 4 PVC...

Page 28: ...erring torque to the manifold 3 Gas piping must not run in or through air ducts clothes chutes chimneys or gas vents dumb waiters or elevator shafts Center gas line through piping hole Gas line should...

Page 29: ...29 of 68 Issue 1622 Horizontal Applications Possible Gas Piping Configurations Figure 37 NOTE BLACK IRON PIPE ONLY TO BE ROUTED INSIDE OF CABINET Figure 36 NOTE BLACK IRON PIPE ONLY TO BE ROUTED INSI...

Page 30: ...right side of the furnace to facilitate installation If the make up box is moved to the right side clip the wire ties that bundle the wires together The excess wire must be pulled into the blower com...

Page 31: ...s I restrictions Protected by either a fuse or circuit breaker select circuit protection and wire size according to unit nameplate 10 Install the room thermostat according to the instructions provided...

Page 32: ...e 57 Hz to 63 Hz The furnace integrated control requires both polarity and proper ground Both polarity and proper grounding should be checked before attempting to operate the furnace on either permane...

Page 33: ...507029 03 Page 33 of 68 Issue 1622 Figure 43 Typical A97DSMV Wiring Diagram...

Page 34: ...507029 03 Page 34 of 68 Issue 1622 Figure 45...

Page 35: ...507029 03 Page 35 of 68 Issue 1622 Figure 46...

Page 36: ...507029 03 Page 36 of 68 Issue 1622 Figure 47 Integrated Control...

Page 37: ...507029 03 Page 37 of 68 Issue 1622 Table 13A Field Wiring Connections for Non Communicating Thermostat Applications R required on some units...

Page 38: ...507029 03 Page 38 of 68 Issue 1622 Table 13B Field Wiring for Non Communicating Applications continued R required on some units...

Page 39: ...ng for Non Communicating Applications continued Connect W1 to W1 ONLY if using defrost tempering kit 67M41 NOTE Do NOT make a wire connection between the room thermolstat L terminal and the L terminal...

Page 40: ...507029 03 Page 40 of 68 Issue 1622 Low Voltage Field Wiring Table 14 Single Stage 2 Stage...

Page 41: ...fault setting See Table 12 Switch 3 Second Stage Heat On Delay If a single stage thermostat is used the integrated control can be used to energize second stage heat after either 7 minutes or 12 minute...

Page 42: ...nce The switches are factory set at option A which has the greatest effect on blower motor performance Table 19 provides the cooling mode blower speed ramping options that will result from different s...

Page 43: ...tton is used to enable the Error Code Recall mode and the Field Test mode Press the button and hold it to cycle through a menu of options Every five seconds a new menu item will be displayed When the...

Page 44: ...507029 03 Page 44 of 68 Issue 1622 BLOWER DATA...

Page 45: ...se 15 Heat CFM 890 1085 1275 1465 1660 1850 2040 Increase 7 5 Heat CFM 830 1010 1190 1370 1550 1730 1910 Default Heat CFM 775 940 1110 1275 1440 1610 1775 Decrease 7 5 Heat CFM 720 870 1025 1180 1335...

Page 46: ...507029 03 Page 46 of 68 Issue 1622 Table 22 COOLING OPERATING SEQUENCE A97DSMV and Single Stage Outdoor Unit...

Page 47: ...507029 03 Page 47 of 68 Issue 1622 Table 23 COOLING OPERATING SEQUENCE A97DSMV and Two Stage Outdoor Unit...

Page 48: ...ignition system Do not attempt to manually light burners on this furnace Each time the thermostat calls for heat the burners will automatically light The ignitor does not get hot when there is no cal...

Page 49: ...adapter kit available as part 10L3 to assist in measurement 1 Remove the threaded plug from the outlet side of the gas valve and install a field provided barbed fitting Connect test gauge connection t...

Page 50: ...begore checking combustion Take combustion sample beyond the flue outlet and compare to the tables below The maximum carbon monoxide reading should not exceed 100 ppm Conversion Kit Requirements Tabl...

Page 51: ...507029 03 Page 51 of 68 Issue 1622 Figure 50 Operation Signal Delta P Measurement Manifold Pressure Measurement...

Page 52: ...within the range shown on the unit nameplate Increase the blower speed to decrease the temperature Decrease the blower speed to increase the temperature Failure to adjust the temperature rise may cau...

Page 53: ...grated control initiates a 30 second stage recognition delay 6 At the end of the recognition delay and on all subsequent calls for heat in the same heating cycle the intergrated control energizes the...

Page 54: ...ducer is energized at the ignition speed which is approximately the same as the inducer speed at 70 percent firing rate 2 Once the control receives a signal that the low fire pressure switch has close...

Page 55: ...ire from vest panel 14 Remove electrical junction box from the side of the furnace 15 Mark and disconnect any remaining wiring to heating compartment components Disengage strain relief bushing and pul...

Page 56: ...be properly in place and provide a seal between the return air and the room where the furnace is installed Return air duct Must be properly attached and provide an air seal to the unit Operating perfo...

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Page 60: ...507029 03 Page 60 of 68 Issue 1622 Configuring Unit Size Codes...

Page 61: ...507029 03 Page 61 of 68 Issue 1622 Troubleshooting Heating Sequence of Operation...

Page 62: ...507029 03 Page 62 of 68 Issue 1622 Troubleshooting Heating Sequence of Operation continued...

Page 63: ...507029 03 Page 63 of 68 Issue 1622 Troubleshooting Heating Sequence of Operation continued...

Page 64: ...507029 03 Page 64 of 68 Issue 1622 Troubleshooting Heating Sequence of Operation continued...

Page 65: ...507029 03 Page 65 of 68 Issue 1622 Troubleshooting Cooling Sequence of Operation...

Page 66: ...507029 03 Page 66 of 68 Issue 1622 Troubleshooting Continuous Fan Sequence of Operation...

Page 67: ...ency or gas supplier Cabinet Parts Heating Compartment Access Panel Blower Access Panel Top Cap Control Panel Parts Transformer Integrated Control Board Door Interlock Switch Circuit Breaker Blower Pa...

Page 68: ...minimum height of eight 8 feet above grade directly in line with the exhaust vent terminal for the horizontally vented gas fueled heating appliance or equipment The sign shall read in print size no le...