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441 01 2101 05

Specifications are subject to change without notice.

Step 3 — Combustion and Ventilation Air

Section 9.3 of the NFGC, NFPA 54/ ANSI Z223.1

−

2012 Air

for Combustion and Ventilation

Step 4 — Duct Systems

Air Conditioning Contractors Association (ACCA) Manual D,

Sheet Metal and Air Conditioning Contractors National

Association (SMACNA), or American Society of Heating,

Refrigeration, and Air Conditioning Engineers (ASHRAE)

2001 Fundamentals Handbook Chapter 34 or 2000 HVAC

Systems and Equipment Handbook Chapters 9 and 16.

Step 5 — Acoustical Lining and Fibrous Glass

Duct

Current edition of SMACNA and NFPA 90B as tested by UL

Standard 181 for Class I Rigid Air Ducts

Step 6 — Gas Piping and Gas Pipe Pressure

Testing

NFPA 54 / ANSI Z223.1

−

2012; chapters 5, 6, 7, and 8 and

National Plumbing Codes

Step 7 — Electrical Connections

National Electrical Code (NEC) NFPA 70

−

2011

Step 8 — Venting

NFGC; NFPA 54 / ANSI Z223.1

−

2012 chapters 12 and 13

ELECTROSTATIC DISCHARGE (ESD)

PRECAUTIONS PROCEDURE

1. Disconnect all power to the furnace. Multiple

disconnects may be required. DO NOT TOUCH THE

CONTROL OR ANY WIRE CONNECTED TO THE

CONTROL PRIOR TO DISCHARGING YOUR BODY’S

ELECTROSTATIC CHARGE TO GROUND.

2. Firmly touch the clean, unpainted, metal surface of the

furnace chassis which is close to the control. Tools

held in a person’s hand during grounding will be

satisfactorily discharged.

3. After touching the chassis, you may proceed to service

the control or connecting wires as long as you do

nothing to recharge your body with static electricity (for

example; DO NOT move or shuffle your feet, do not

touch ungrounded objects, etc.).

4. If you touch ungrounded objects (and recharge your

body with static electricity), firmly touch a clean,

unpainted metal surface of the furnace again before

touching control or wires.

5. Use this procedure for installed and uninstalled

(ungrounded) furnaces.

6. Before removing a new control from its container,

discharge your body’s electrostatic charge to ground to

protect the control from damage. If the control is to be

installed in a furnace, follow items 1 through 4 before

bringing the control or yourself in contact with the

furnace. Put all used and new controls into containers

before touching ungrounded objects.

7. An ESD service kit (available from commercial

sources) may also be used to prevent ESD damage.

FURNACE RELIABILITY HAZARD

Improper installation or service of furnace may cause

premature furnace component failure.
Electrostatic discharge can affect electronic

components. Follow the Electrostatic Discharge

Precautions Procedure listed below during furnace

installation and servicing to protect the furnace electronic

control. Precautions will prevent electrostatic discharges

from personnel and hand tools which are held during the

procedure. These precautions will help to avoid

exposing the control to electrostatic discharge by putting

the furnace, the control, and the person at the same

electrostatic potential.

CAUTION

Figure 4

−

Multipoise Orientations

THE BLOWER IS LOCATED

TO THE RIGHT OF THE

BURNER SECTION, AND

AIR CONDITIONED AIR IS

DISCHARGED TO THE LEFT.

THE BLOWER IS

LOCATED BELOW THE

BURNER SECTION, AND

CONDITIONED AIR IS

DISCHARGED UPWARD.

THE BLOWER IS

LOCATED ABOVE THE

BURNER SECTION, AND

CONDITIONED AIR IS

DISCHARGED DOWNWARD

THE BLOWER IS

LOCATED TO THE LEFT

OF THE BURNER SECTION,

AND CONDITIONED AIR IS

DISCHARGED TO THE RIGHT.

A02097

Содержание F8MTL

Страница 1: ...alert to the potential for personal injury TABLE OF CONTENTS SAFETY CONSIDERATIONS 3 INTRODUCTION 4 CODES AND STANDARDS 4 STEP 1 SAFETY 4 STEP 2 GENERAL INSTALLATION 4 STEP 3 COMBUSTION AND VENTILATION AIR 5 STEP 4 DUCT SYSTEMS 5 STEP 5 ACOUSTICAL LINING AND FIBROUS GLASS DUCT 5 STEP 6 GAS PIPING AND GAS PIPE PRESSURE TESTING 5 STEP 7 ELECTRICAL CONNECTIONS 5 STEP 8 VENTING 5 ELECTROSTATIC DISCHAR...

Страница 2: ...ctangle d For airflow requirements above 1800 CFM see Air Delivery table in Product Data literature for specific use of single side inlets The use of both side inlets a combination of 1 side and the bottom or the bottom only will ensure adequate return air openings for airflow requirements above 1800 CFM Table 1 Dimensions FURNACE SIZE A B C D VENT SHIP CABINET WIDTH IN mm OUTLET WIDTH IN mm TOP A...

Страница 3: ...ght suggestions which will result in enhanced installation reliability or operation product and property damage NOTE is used to highlight suggestions which will result in enhanced installation reliability or operation 1 Use only with type of gas approved for this furnace Refer to the furnace rating plate 2 Install this furnace only in a location and position as specified in the Location section of...

Страница 4: ...uch as when used with a night setback thermostat Return air temperature must not exceed 80 F 27 C db Failure to follow these return air temperature limits may affect reliability of heat exchangers motors and controls SeeFigure 3 For accessory installation details refer to the applicable instruction literature NOTE Remove all shipping brackets and materials before operating the furnace Figure 2 Cle...

Страница 5: ...ungrounded objects etc 4 If you touch ungrounded objects and recharge your body with static electricity firmly touch a clean unpainted metal surface of the furnace again before touching control or wires 5 Use this procedure for installed and uninstalled ungrounded furnaces 6 Before removing a new control from its container discharge your body s electrostatic charge to ground to protect the control...

Страница 6: ...ents salts air fresheners and other household products Do not install furnace in a corrosive or contaminated atmosphere Make sure all combustion and circulating air requirements are met in addition to all local codes and ordinances WARNING If air is exposed to the following substances it should not be used for combustion air and outdoor air may be required for combustion Permanent wave solutions C...

Страница 7: ...ipped with means to prevent operation of either unit unless the damper is in the full heat or full cool position AIR FOR COMBUSTION AND VENTILATION Provisions for adequate combustion ventilation and dilution air must be provided in accordance with U S installations Section 9 3 of the NFPA 54 A ANSI Z223 1 2012 Air for Combustion and Ventilation and applicable provisions of the local building codes...

Страница 8: ...gure 7 Air for Combustion Ventilation and Dilution for Outdoors 1 SQ IN PER 4000 BTUH DUCTS TO OUTDOORS 1 SQ IN PER 4000 BTUH C IRCULA TING AIR DUCTS VENT THROUGH ROOF D B A C E 1 SQ IN PER 4000 BTUH DUCT TO OUTDOORS CIRCULATING AIR DUCTS 1 SQ IN PER 2000 BTUH 1 SQ IN PER 2000 BTUH DUCTS TO OUTDOORS 12 MAX 12 MAX 12 MAX 12 MAX 12 MAX OUTDOORS 1 SQ IN PER 4000 BTUH F G CLEARANCE IN FRONT OF COMB US...

Страница 9: ...04002 2 For fan assisted appliances such as this furnace Volume Fan 15ft3 ACH I fan 1000 Btu hr A04003 If Iother combined input of all other than fan assisted appliances in Btuh hr Ifan combined input of all fan assisted appliances in Btuh hr ACH air changes per hour ACH shall not exceed 0 60 The following requirements apply to the Standard Method and to the Known Air Infiltration Rate Method 1 Ad...

Страница 10: ...s may be used See Figure 10 Install field supplied 5 16 x 1 1 2 in 8 x 38 mm max corrosion resistant machine bolts washers and nuts NOTE Bottom closure must be used when leveling legs are used It may be necessary to remove and reinstall bottom closure panel to install leveling legs To remove bottom closure panel see item 1 in Bottom Return Air Inlet section in Step 1 above To install leveling legs...

Страница 11: ...urnace on its back or hang furnace with control compartment facing downward Safety control operation will be adversely affected Never connect return air ducts to the back of the furnace WARNING Suspended Furnace Support The furnace may be supported under each end with threaded rod angle iron or metal plumber s strap as shown See Figure 15 and Figure 16 Secure angle iron to bottom of furnace as sho...

Страница 12: ...11 16 322 21 5 8 549 13 5 16 338 22 1 4 565 Downflow Applications on Noncombustible Flooring subbase not required 12 9 16 319 19 483 13 3 16 335 19 5 8 498 Downflow Applications on Combustible Flooring subbase required 11 13 16 284 19 483 13 7 16 341 20 5 8 600 Downflow Applications on Combustible Flooring with Coil END4X ENW4X or Coil Casing NAEA subbase not required 12 5 16 319 19 483 13 5 16 33...

Страница 13: ...RON OR UNI STRUT MAY BE USED 2 HEX NUTS 2 WASHERS 2 LOCK WASHERS REQ PER ROD 8 203mm MIN FOR DOOR REMOVAL OUTER DOOR ASSEMBLY A10130 Figure 16 Horizontal Suspension with Straps METHOD 2 USE 4 8 x 3 4 19 mm SHEET METAL SCREWS FOR EACH STRAP THE STRAPS SHOULD BE VERTICAL AGAINST THE FURNACE SIDES AND NOT PULL AWAY FROM THE FURNACE SIDES METHOD 1 FOLD ALL STRAPS UNDER FURNACE AND SECURE WTH 4 8 x 3 4...

Страница 14: ...rn air shall also be handled by duct s sealed to the furnace casing and terminating outside the space containing the furnace Secure ductwork with proper fasteners for type of ductwork used Seal supply and return duct connections to furnace with code approved tape or duct sealer NOTE Flexible connections should be used between ductwork and furnace to prevent transmission of vibration Ductwork passi...

Страница 15: ...flange may be bent past 90 to allow the evaporator coil to hang on the flange temporarily while the remaining attachment and sealing of the coil are performed Downflow Furnaces Connect supply air duct to supply air outlet on furnace Bend flange inward past 90 with wide duct pliers See Figure 14 The supply air duct must be connected to ONLY the furnace supply outlet or air conditioning coil casing ...

Страница 16: ... remain capped until gas supply line is permanently installed to protect the valve from moisture and debris Also install a sediment trap in the gas supply piping at the inlet to the gas valve WARNING Figure 18 Upflow Return Air Configurations and Restrictions 5 TONS AND GREATER 2000 CFM AND GREATER AT 6 ESP HI COOLING SPEED Figure 19 Downflow Return Air Configurations and Restrictions 5 TONS AND G...

Страница 17: ...sachusetts Refer to Table 6 for recommended gas pipe sizing Risers must be used to connect to furnace and to meter Support all gas piping with appropriate straps hangers etc Use a minimum of 1 hanger every 6 ft 1 8 M Joint compound pipe dope should be applied sparingly and only to male threads of joints Pipe dope must be resistant to the action of propane gas FIRE OR EXPLOSION HAZARD Failure to fo...

Страница 18: ...de purge lines and check for leakage at furnace prior to operating furnace If pressure exceeds 0 5 psig 14 In W C gas supply pipe must be disconnected from furnace and capped before and during supply pipe pressure test If test pressure is equal to or less than 0 5 psig 14 In W C turn off electric shutoff switch located on furnace gas control valve and accessible manual equipment shutoff valve befo...

Страница 19: ...R CKT BKR AMPS MINIMUM WIRE GAUGE MAX MIN 0451412 115 60 1 127 104 7 1 9 67 38 11 5 15 14 0701412 115 60 1 127 104 7 3 9 90 37 11 2 15 14 0901714 115 60 1 127 104 8 2 10 84 34 10 3 15 14 1102122 115 60 1 127 104 13 7 17 60 32 9 7 20 12 Permissible limits of the voltage range at which the unit operates satisfactorily Unit ampacity 125 of largest operating component s full load amps plus 100 of all ...

Страница 20: ...ox to furnace casing with screws removed in Step 4 11 Secure field ground wire to J Box green ground screw 12 Complete electrical box wiring and installation Connect line voltage leads as shown in Figure 23 Use best practices NEC in U S for wire bushings strain relief etc 13 Reinstall cover to J Box Do not pinch wires between cover and bracket POWER CORD INSTALLATION IN FURNACE J BOX NOTE Power co...

Страница 21: ...out notice Figure 26 Two Stage Furnace with Single Speed Air Conditioner Figure 27 Two Stage Furnace with Two Stage Air Conditioner Figure 28 Two Stage Furnace with Single Stage Heat Pump Dual Fuel Figure 29 Two Stage Furnace with Two Stage Heat Pump Dual Fuel ...

Страница 22: ...wer motor operation See Figure 33 2 Humidifier HUM 24VAC and HUM a HUM 24VAC Connect an accessory 24 VAC 0 5 amp maximum humidifier if used to the in male quick connect HUM 24VAC terminal and C screw terminal on the control board thermostat strip The HUM 24VAC terminal is energized when there is a call for heat W and the pressure switch PRS closes See Figure 33 and Figure 55 b HUM connect an acces...

Страница 23: ...ECTOR TRANSFORMER 24VAC CONNECTIONS P2 HOT SURFACE IGNITOR HSI INDUCER MOTOR CONNECTOR 115 VAC L1 LINE VOLTAGE CONNECTION EAC TERMINAL 115 VAC 1 0 AMP MAX SPARE2 SPARE1 COM BLUE 115 VAC L2 NEUTRAL CONNECTIONS 24 V THERMOSTAT TERMINALS HUMIDIFIER TERMINAL 24 VAC 0 5 AMP MAX 3 AMP FUSE LED OPERATION DIAGNOSTIC LIGHT 24VAC RED BLOWER SPEED SELECTION TERMINALS HUM XFMR HUMIDIFIER TERMINAL 115 VAC HUM ...

Страница 24: ...the venting system These furnaces are approved for common venting and multi story venting with other fan assisted or draft hood equipped appliances in accordance with the NFCG local building codes and furnace and vent manufacturers instructions The following information and warning must be considered in addition to the requirements defined in the NFGC CARBON MONOXIDE POISONING HAZARD Failure to fo...

Страница 25: ...25 441 01 2101 05 Specifications are subject to change without notice Figure 34 Chimney Inspection Chart A10133 ...

Страница 26: ...ble size in the tables the chimney should be rebuilt or relined to conform to the requirements of the equipment being installed and the authority having jurisdiction A chimney without a clay tile liner which is otherwise in good condition shall be rebuilt to conform to ANSI NFPA 211 or be lined with a UL listed metal liner or UL listed Type B vent Relining with a listed metal liner or Type B vent ...

Страница 27: ...w vent gas temperatures causing condensation and corrosion in the furnace and or venting system Derating is permitted only for altitudes above 2000 ft 3 Adjust the air temperature rise to the midpoint of the rise range or slightly above Low air temperature rise can cause low vent gas temperature and potential for condensation problems 4 Set the thermostat heat anticipator or cycle rate to reduce s...

Страница 28: ... figures A03210 Figure 38 Downflow Application Vent Elbow Up SEE NOTES 1 2 4 5 7 8 9 on the page following these figures A03211 Figure 39 Downflow Application Vent Elbow Left then Up SEE NOTES 1 2 4 5 6 7 8 9 10 on the page following these figures A03207 Figure 40 Downflow Application Vent Elbow Up then Right SEE NOTES 1 2 3 4 5 7 8 9 on the page following these figures A03212 ...

Страница 29: ...Left Application Vent Elbow Right SEE NOTES 1 2 4 5 7 8 9 on the page following these figures A03216 Figure 46 Horizontal Right Application Vent Elbow Left then Up SEE NOTES 1 2 4 5 7 8 9 on the page following these figures A03219 Figure 47 Horizontal Right Application Vent Elbow Left SEE NOTES 1 2 4 5 7 8 9 A02068 Venting Notes for Figure 35 Figure 47 1 For common vent vent connector sizing and v...

Страница 30: ...ired re install screws The factory supplied vent elbow does NOT count as part of the number of vent connector elbows The vent connector can exit the furnace through one of 5 locations on the casing 1 Attach the single wall vent connector to the furnace vent elbow and fasten the vent connector to the vent elbow with at least two field supplied corrosion resistant sheet metal screws located 180 apar...

Страница 31: ...ses and High Heat operation when R to W W1 and W2 close SW2 2 Heat OFF delay OFF Control heat OFF delay time Used in conjunction with SW1 3 See Table 14 SW3 3 Heat OFF delay ON Control heat OFF delay time Used in conjunction with SW1 2 See Table 14 Table 11 Two Stage Furnace Blower OFF Delay Setup Switch DESIRED HEATING MODE BLOWER OFF DELAY SEC SETUP SWITCH SW1 2 SETUP SWITCH SW1 3 90 OFF OFF 120...

Страница 32: ... For installations above 2000 ft 610 M multiply the input on the rating plate by the derate multiplier in Table 11 for the correct input rate 2 Determine the correct orifice and manifold pressure adjustment All models in all positions except Low NOx models in downflow and horizontal positions use Table 15 22 000 BTUH per burner Low NOx models in downflow or horizontal positions MUST use Table 16 2...

Страница 33: ...revolution and note reading The 2 or 5 cubic feet dial provides a more accurate measurement of gas flow Figure 49 Orifice Hole BURNER ORIFICE A93059 d Refer to Table 12 for cubic ft of gas per hr e Multiply gas rate cu ft hr by heating value Btuh cu ft to obtain input If clocked rate does not match required input from Step 1 increase manifold pressure to increase input or decrease manifold pressur...

Страница 34: ... and remove thermostat jumpers e To change motor speed selection for low heat remove blower motor lead from control LO HEAT terminal See Figure 33 Select desired blower motor speed lead from one of the other terminals and relocate it to the LO HEAT terminal See Table 13 for lead color identification Reconnect original lead to SPARE terminal f Repeat steps a through e FURNACE OVERHEATING HAZARD Fai...

Страница 35: ...d from one of the other terminals and relocate it to the HI HEAT terminal DO NOT use the low heat tap that was already set See Table 13 for lead color identification Reconnect original lead to SPARE terminal e Repeat steps a thru d f When correct high heat input rate and temperature rise is achieved turn gas valve ON OFF switch to OFF g Remove Blower Access Door h Remove manometer or similar devic...

Страница 36: ...ace and set room thermostat above room temperature d After normal start up allow furnace to operate for 2 minutes then block vent elbow in furnace 80 of vent area with a piece of flat sheet metal e Furnace should cycle off within 2 minutes If gas does not shut off within 2 minutes determine reason draft safeguard switch did not function properly and correct condition f Remove blockage from furnace...

Страница 37: ...37 441 01 2101 05 Specifications are subject to change without notice Table 15 Orifice Size and Manifold Pressures in w c for Gas Input Rate A10184 ...

Страница 38: ...38 441 01 2101 05 Specifications are subject to change without notice Table 15 Orifice Size and Manifold Pressures in w c for Gas Input Rate cont A10184A ...

Страница 39: ...39 441 01 2101 05 Specifications are subject to change without notice Table 16 Orifice Size and Manifold Pressures in w c for Gas Input Rate A10185 ...

Страница 40: ...omponents or materials i e oil refrigerant control board etc before unit final disposal CAUTION ELECTRICAL SHOCK FIRE OR EXPLOSION HAZARD Failure to follow this warning could result in personal injury or death Before installing modifying or servicing system main electrical disconnect switch must be in the OFF position and install a lockout tag There may be more than one disconnect switch Lock out ...

Страница 41: ...st as shown on the SERVICE label located on the of blower access door Step 2 Care and Maintenance For continuing high performance and to minimize possible furnace failure periodic maintenance must be performed on this furnace Consult your local dealer about proper frequency of maintenance and the availability of a maintenance contract FIRE OR EXPLOSION HAZARD Failure to follow this warning could r...

Страница 42: ...42 441 01 2101 05 Specifications are subject to change without notice Figure 51 Service Label ...

Страница 43: ...r door 3 For downflow or horizontal furnaces having vent pipes within the furnace that pass in front of the blower access door a Disconnect vent connector from furnace vent elbow b Disconnect and remove short piece of vent pipe from within furnace 4 Remove two 2 screws from blower access door and remove blower access door 5 All factory wires can be left connected but field thermostat connections m...

Страница 44: ...ombustion air incorrect size or damaged manifold orifice s improper gas or a restricted heat exchanger Action must be taken to correct the problem If it becomes necessary to clean the heat exchangers because of dust or corrosion proceed as follows 1 Turn OFF gas and electrical power to furnace 2 Remove outer access door 3 Disconnect vent connector from furnace vent elbow 4 For downflow or horizont...

Страница 45: ...st for gas leaks with an open flame Use a commercially available soap solution made specifically for the detection of leaks to check all connections WARNING Step 3 Sequence of Operation NOTE Furnace control must be grounded for proper operation or control will lockout Control is grounded through green wire connected to gas valve and burner bracket screw Using the schematic diagram in Figure 55 fol...

Страница 46: ...om Low to High Heat If the furnace control CPU switches from low heat to high heat the furnace control CPU will switch the inducer motor IDM speed from low to high The high heat pressure switch relay HPSR is de energized to close the NC contact When sufficient pressure is available the high heat pressure switch HPS closes and the high heat gas valve solenoid GV HI is energized The blower motor BLW...

Страница 47: ...lower motor BLWM will operate on continuous blower speed LO HEAT speed Terminal EAC 1 AMP is energized as long as the blower motor BLWM is energized During a call for heat the blower BLWM will stop during igniter warm up 17 seconds ignition 7 seconds and blower ON delay 45 seconds in low heat and 25 seconds in high heat allowing the furnace heat exchangers to heat up more quickly then restarts at ...

Страница 48: ...48 441 01 2101 05 Specifications are subject to change without notice Figure 55 Wiring Diagram 337797 201 Rev B ...

Страница 49: ...49 441 01 2101 05 Specifications are subject to change without notice Figure 56 Troubleshooting Guide Two Speed ...

Страница 50: ...50 441 01 2101 05 Specifications are subject to change without notice NOTE NUMBER IN UPPER LEFT HAND CORNER REPRESENTS FLASH CODE ...

Страница 51: ...lower Motor S Single stage T Two stage TYPE N Standard L Low Nox FEATURE 045 45 000 BTU hr 070 70 000 BTU hr 090 90 000 BTU hr 110 110 000 BTU hr HEAT INPUT 14 143 16 17 171 2 21 21 24 241 2 CABINET WIDTH 08 800 CFM 12 1200 CFM 14 1400 CFM 16 1600 CFM 20 2000 CFM 22 2200 CFM COOLING AIRFLOW SALES MAJOR REVISION DIGIT ENGINEERING MINOR REVISION DIGIT TO OBTAIN INFORMATION ON PARTS Consult your inst...

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