Page 2 - Read the entire instruction manual before starting the; TABLE OF CONTENTS; REGISTERED QUALITY SYSTEM; er; at; IST
Single-Stage Induced-Combustion 4-Way Multipoise Furnace Installation, Start-up, Operating, and Service and Maintenance Instructions Series 100/A NOTE: Read the entire instruction manual before starting the installation. This symbol → indicates a change since the last issue. TABLE OF CONTENTS SAFETY...
Page 3 - SAFETY CONSIDERATIONS; Fig. 1—Dimensional Drawing
SAFETY CONSIDERATIONS Improper installation, adjustment, alteration, service, mainte-nance, or use can cause carbon monoxide poisoning, explo-sion, fire, electrical shock, or other conditions which maycause personal injury or property damage. Consult a qualifiedinstaller, service agency, local gas s...
Page 4 - Fig. 2—Clearances to Combustibles; MINIMUM INCHES CLEARANCE TO COMBUSTIBLE CONSTRUCTION; INSTALLATION; POUR LA POSITION COURANT DESCENDANT:
6. Always install furnace to operate within the furnace’s intended temperature-rise range with a duct system which has anexternal static pressure within the allowable range, as speci-fied in the “Start-Up, Adjustments, and Safety Check” section.See furnace rating plate. 7. When a furnace is installe...
Page 5 - These furnaces SHALL NOT be installed directly on carpet-; INTRODUCTION; Remove all shipping brackets and materials before oper-; CODES AND STANDARDS; UNIT SIZE; Fig. 3—Return Air Temperature
CSA (A.G.A. and C.G.A.) listed gas conversion kit is requiredto convert furnace for use with propane gas. 11. See Fig. 2 for required clearances to combustibles. 12. Maintain a 1-in. clearance from combustible materials to supply air ductwork for a distance of 36 inches horizontallyfrom the furnace....
Page 6 - Fig. 4—Multipoise Orientations
• CANADA: Part 7 of NSCNGPIC, Venting Systems and AirSupply for Appliances Step 4—Duct Systems • US and CANADA: Air Conditioning Contractors Association(ACCA) Manual D, Sheet Metal and Air Conditioning Con-tractors National Association (SMACNA), or American Soci-ety of Heating, Refrigeration, and Ai...
Page 7 - Step 2—Location Relative to Cooling Equipment; Fig. 5—Prohibit Installation on Back; TO BURNERS
This gas furnace may be used for construction heat providedthat:-The furnace is permanently installed with all electricalwiring, piping, venting and ducting installed according tothese installation instructions. A return air duct is provided,sealed to the furnace casing, and terminated outside the s...
Page 8 - Table 2–Minimum Free Area of Combustion Air Opening*
Step 1—Unconfined Space An unconfined space has a volume of at least 50 cu ft for each1000 Btuh total input for all appliances (furnaces, clothes dryers,water heaters, etc.) in the space. For example: FURNACE INPUT (BTUH) MINIMUM WITH 7–1/2 FT CEILING (SQ. FT.) 44,000 294 66,000 441 88,000 587 110,0...
Page 9 - Fig. 8—Confined Space: Air for Combustion and; Fig. 9—Removing Bottom Closure Panel
c. If combustion air is taken from the outdoors through a single opening or duct (horizontal or vertical) commencingwithin 12 in. of the top of the confined space, the openingand duct must have at least 1 sq in. of free area per 3000Btuh of the total input for all equipment within the confinedspace ...
Page 10 - Fig. 10—Leveling Legs
NOTE: It is recommended that the perforated supply-air duct flanges be completely folded over or removed from furnace wheninstalling the furnace on a factory-supplied cased coil or coil box.To remove the supply-air duct flange, use wide duct pliers or handseamers to bend flange back and forth until ...
Page 11 - Fig. 11—Floor and Plenum Opening Dimensions
When a furnace is installed so that the supply ducts carry air toareas outside the space containing the furnace, the return air mustalso be handled by a duct(s) sealed to the furnace casing andterminating outside the space containing the furnace. Secure ductwork with proper fasteners for type of duc...
Page 12 - DUCTWORK ACOUSTICAL TREATMENT; UPFLO W
DUCTWORK ACOUSTICAL TREATMENT Metal duct systems that do not have a 90 degree elbow and 10 ftof main duct to the first branch take-off may require internalacoustical lining. As an alternative, fibrous ductwork may be usedif constructed and installed in accordance with the latest edition of SMACNA co...
Page 13 - Fig. 15—Horizontal Unit Suspension; Fig. 16—Horizontal Suspension with Straps
SUPPLY AIR CONNECTIONS For a furnace not equipped with a cooling coil, the outlet duct shallbe provided with a removable access panel. This opening shall beaccessible when the furnace is installed and shall be of such a sizethat the heat exchanger can be viewed for possible openings usinglight assis...
Page 14 - Step 6—Gas Piping; Fig. 17—Typical Attic Installation
Downflow Furnaces Connect supply-air duct to supply-air opening on furnace. Thesupply-air duct attachment must ONLY be connected to furnacesupply/outlet or air conditioning coil casing (when used). Wheninstalled on combustible material, supply-air duct attachment mustONLY be connected to the accesso...
Page 16 - The gas valve inlet pressure tap connection is suitable to; Step 7—Electrical Connections; Table 4—Maximum Capacity of Pipe*; Fig. 21b—Typical Gas Pipe Arrangement; UNION
Connect gas pipe to gas valve using a backup wrench to avoiddamaging gas controls. Use proper length of pipe to avoid stress on gas controlmanifold. Failure to follow this warning could result in a gasleak resulting in fire, explosion, personal injury, or death. An accessible manual shutoff valve MU...
Page 17 - Table 5—Electrical Data; TWO
Furnace control must be grounded for proper operation orcontrol will lock out. Control is grounded through green/yellow wire routed to gas valve and manifold bracketscrew. 115-V WIRING Verify that the voltage, frequency, and phase correspond to thatspecified on unit rating plate. Also, check to be s...
Page 18 - Fig. 23—Furnace Control
1. Route listed power cord through hole in J-Box. 2. Secure power cord to J-Box bracket with a strain relief bushing or a connector approved for the type of cord used. 3. Secure ground wire to green screw on J-Box bracket. 4. Connect line voltage leads as shown in Fig. 24. FOR BX CABLE INSTALLATION ...
Page 19 - Step 8—Venting
DO NOT connect furnace control HUM terminal to HUM(humidifier) terminal on Thermidistat™, Zone Controller orsimilar device. See Thermidistat™, Zone Controller, thermo-stat, or controller manufacturer’s instructions for properconnection. Step 8—Venting The furnace shall be connected to a factory buil...
Page 22 - Step 1—General
A chimney without a clay tile liner, which is otherwise in goodcondition, shall be rebuilt to conform to ANSI/NFPA 211 or belined with a UL listed (ULC listed in Canada) metal liner or ULlisted Type-B vent. Relining with a listed metal liner or Type-Bvent is considered to be a vent-in-a-chase. If a ...
Page 23 - Fig. 25—Chimney Inspection Chart; CHIMNEY INSPECTION CHART
Fig. 25—Chimney Inspection Chart A02101 CHIMNEY INSPECTION CHART For additional requirements refer to the National Fuel Gas Code NFPA 54/ANSI Z223.1 and ANSI/NFPA 211 Chimneys, Fireplaces, Vents, and Solid Fuel Burning Appliances in the U.S.A. or to the Canadian installation Codes CSA-B149.1 in Cana...
Page 24 - Step 2—Start-Up Procedures; Step 3—Adjustments; Furnace Input Rate
Personal injury can result form sharp metal edges, etc. Becareful when removing parts. Gloves and safety glassesshould be worn when servicing equipment. 1. Maintain 115-v wiring and ground. Improper polarity will result in rapid flashing LED and no furnace operation. 2. Make thermostat wire connecti...
Page 25 - See Venting Notes on page 26.
SEE NOTES: 1,2,4,7,8,9 A02058 Fig. 26—Upflow Application- Vent Elbow Up SEE NOTES: 1,2,3,4,7,8,9 A02059 Fig. 27—Upflow Application- Vent Elbow Right SEE NOTES:1,2,3,4,5,7,8,9 A02060 Fig. 28—Downflow Application-Vent Elbow Up then Left SEE NOTES: 1,2,4,5,7,8,9 A02061 Fig. 29—Downflow Application-Vent...
Page 26 - See Venting Notes on Page 26
f. Check and verify burner orifice size in furnace. NEVER ASSUME ORIFICE SIZE. ALWAYS CHECK ANDVERIFY. g. Replace orifice with correct size if required by Table 13 or 14. Use only factory-supplied orifices. See EXAMPLE 2. 22,000 BTUH burner applications use Table 10EXAMPLE 2: (0–2000 ft altitude)Hea...
Page 28 - PCB
Fig. 39 — Furnace Wiring Diagram A02141 PCB J 2 R W C HU M EA C- 2 JB L E G E N D LS 1 , 2 LI M IT S W IT C H , A U TO -RESET , SP ST (N.C .) OL A U TO -R ESET INTERNA L M O TOR O V ER LO AD T E M P ER A TURE SWIT C H ( N.C .) P C B P R INTED C IR C UI T B O ARD C O NTROL PL 1 1 1 -CI R C UI T PC B ...
Page 29 - Fig. 40—Redundant Automatic Gas Control Valve; BURNER; Table 7—Speed Selection
a. Mechanical thermostat—Set thermostat heat anticipator to match the amp draw of the electrical components in theR-W circuit. Accurate amp draw readings can be obtainedat the wires normally connected to thermostat subbaseterminals, R and W. The thermostat anticipator shouldNOT be in the circuit whi...
Page 30 - Step 4—Check Safety Controls; Fig. 42—Amp Draw Check With Ammeter
To change the blower off delay setting, move the jumper fromone set of pins on the control to the pins used for the selectedblower off delay. Factory off delay setting is 120 sec. Step 4—Check Safety Controls The flame sensor, gas valve, and pressure switch were all checkedin the Start-up procedure ...
Page 32 - Step 2—Care and Maintenance; Fig. 43—Service Label; LED CODE; SERVICE; COMPONENT TEST
NOTE: If TEST/TWIN to C OM -24V terminals are jumpered longer than 2 sec, LED will flash rapidly, and test request will beignored. 6. Component Test will function as follows: a. LED flashes a status code 4 times. Record this status code for further troubleshooting. b. Inducer motor starts and contin...
Page 33 - Media cabinet filter procedures:; FURNACE; Side Return
3. Check electrical connections for tightness and controls for proper operation each heating season. Service as necessary. 4. Inspect burner compartment before each heating season for rust, corrosion, soot or excessive dust. If necessary, havefurnace and burner serviced by a qualified professional. ...
Page 34 - Fig. 44—Position of Igniter to Burner
e. Remove blower wheel from housing. f. Clean wheel and housing. 12. Reassemble motor and blower by reversing steps 11f, finish- ing with 11a. Be sure to reattach ground wire to the blowerhousing. 13. Verify that blower wheel is centered in blower housing and set screw contacts the flat portion of t...
Page 35 - Step 3—Sequence of Operation; Fig. 45—Position of Igniter to Burner
9. Using field-provided 25-caliber rifle cleaning brush, 1/4 ″ diameter steel spring cable, 36 in. long, a variable speed,reversible electric drill, and vacuum cleaner, clean cells asfollows: a. Remove metal screw fitting from wire brush to allow insertion into cable. b. Insert the twisted wire end ...
Page 36 - calls for heat; a. Inducer Prepurge Period- As the inducer motor IDM; calls for cooling; Step 4—Wiring Diagrams; Refer to Fig. 24 and 39 for wiring diagrams.; Step 5—Troubleshooting
The blower door must be installed for power to be conductedthrough the blower door interlock switch ILK to the furnacecontrol CPU, transformer TRAN, inducer motor IDM, blowermotor BLWM, hot-surface igniter HSI, and gas valve GV. 1. Heating (See Fig. 24 for thermostat connections.)The wall thermostat...
Page 37 - TABLE 10—Orifice Size* and Manifold Pressure For Gas Input Rate; and
TABLE 10—Orifice Size* and Manifold Pressure For Gas Input Rate (Tabulated Data Based On 22,000 Btuh Per Burner, Derated 4 Percent For Each 1000 Ft Above Sea Level) ALTITUDE RANGE (FT) AVG GAS HEAT VALUE (BTU/CU FT) SPECIFIC GRAVITY OF NATURAL GAS 0.58 0.60 0.62 0.64 Orifice No. Manifold Pressure Or...
Page 39 - Only
Table 10—Orifice Size* And Manifold Pressure For Gas Input Rate (Continued) (Tabulated Data Based On 22,000 Btuh Per Burner, Derated 4 Percent For Each 1000 Ft Above Sea Level) ALTITUDE RANGE (FT) AVG GAS HEAT VALUE AT ALTITUDE (BTU/CU FT) SPECIFIC GRAVITY OF NATURAL GAS 0.58 0.60 0.62 0.64 Orifice ...
Page 40 - TABLE 11—Orifice Size* and Manifold Pressure For Gas Input Rate
TABLE 11—Orifice Size* and Manifold Pressure For Gas Input Rate (Tabulated Data Based On 21,000 Btuh Per Burner, Derated 4 Percent For Each 1000 Ft Above Sea Level) ALTITUDE RANGE (FT) AVG GAS HEAT VALUE (BTU/CU FT) SPECIFIC GRAVITY OF NATURAL GAS 0.58 0.60 0.62 0.64 Orifice No. Manifold Pressure Or...
Page 43 - OUBLESHOO
A02106a Is LED status light on? Is LED status light b linking r apidly without a pause? Is LED status light b linking ON/OFF slo wly with a combination of shor t and long flashes? Deter mine status code . The status code is a 2 digit n umber with the first digit deter mined b y the n umber of shor t...
