Lennox International Inc.メーカーDAVE LENNOX SIGNATURE COLLECTION GAS FURNACE DOWNFLOW AIR DISCHARGEの使用説明書/サービス説明書
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Page 1 02/1 1 *2P0211* 50661 1−01 *P506611-01* 201 1 Lennox Industries Inc. Dallas, T exas, USA AIR FLOW DOWNFLOW W ARNING Improper installation, adjustment, alteration, service or maintenance can cause property damage, person- al injury or loss of life.
Page 2 Unit Dimensions − inches (mm) AIR EXHAUST AIR OUTLET COMBUSTION AIR INT AKE FLOW 2 − 1/16 (52) 090V48C A B C D SLP98DF Model No. in. mm in. mm in.
Page 3 Part s Arrangement FIGURE 1 BURNER BOX ASSEMBL Y GAS V AL VE ACCESS P ANEL COMBUSTION AIR INDUCER BLOWER ACCESS P ANEL BLOWER ASSEMBL Y (V ariable S peed Blower Motor Is Hidden) BAG ASSEMBL Y C.
Page 4 SLP98DFV Gas Furnace The S LP98DFV category IV g as furnace is equipped with a variable−capacity , variable−s peed integrated control. This control ensures compatibility with the Lennox icom- fort T ouch thermostat and Harmony III zone contr ol system, as well as a thermost at whi ch provides humidity control.
Page 5 Installed in Combination with a Cooling Coil When this furnace is used wi th cooling units, it shall be installed in parallel with, or on the upstream side of, cooling units to avoid condensation in the heating compartment.
Page 6 General W ARNING Product contains fiberglass wool. Disturbing the insulation in this product during inst allation, maintenance, or repair will expose you to fiberglass wool. Breathing this may cause lung cancer . (Fiberglass wool is known t o the St ate of Cal- ifornia to cause cancer .
Page 7 NOTE − The 1/2 hp blower motor used in some SLP98DFV unit is equipped with three flexible legs and one rigid leg. Th e rigid leg is equipped with a shipping bolt and a flat white plastic washer (rather than the rubber mounting grommet used with a flexible mounting leg).
Page 8 T ABLE 1 NON−COMBUSTIBLE FLOOR OPENING SIZE Cabinet Wid th Front to Rear Side to Side in . mm in. mm B Cabinet (17.5") 19 − 3/4 502 16 − 5/8 422 C Cabinet (21") 19 − 3/4 502 20−1/8 51 1 NOTE − Floor opening dimensions listed are 1/4 inch (6 mm) larger than the unit opening.
Page 9 FIGURE 10 COOLING COIL PLENUM PROPERL Y SIZED FLOOR OPENING SLP98DF UNIT Return Air Opening −− Downflow Unit s Return air may be brought in only through the top opening of a furnace installed in the downflow position.
Page 10 Pipe & Fittings Specifications All p ipe, fittings, primer a nd s olvent c ement m us t conform with A mer ican National S tandard Institute a nd the Ameri- can Soci ety f or T e sting and Ma terials (ANS I/ASTM ) s tan - dards.
Page 11 T ABLE 5 OUTDOOR TERMINA TION KITS USAGE SLP98DF UNIT VENT PIPE DIA. (in.) ST ANDARD CONCENTRIC Outdoor Exhaust Accelerator (Dia. X Length) Outdoor Exhaust Acceler ator (Dia.
Page 12 V enting Practices FIGURE 13 * See table 4 for allowable pipe. Piping Suspension Guidelines NOTE − Isolate piping at the point where it exits the out side wall or roof in order to prevent transmission of vibration to the structure. SCHEDULE 40 PVC −− Support every 5 feet.
Page 13 NOTE − The exhaust collar on all models is sized to ac - commodate 2" Schedule 40 vent pipe. Contact the Ap - plication Dep artment for more information concerning sizing o f v ent system s w hich inclu de multiple pipe s izes. NOTE − All horiz ontal runs of exhaust pipe must slope back toward unit.
Page 14 T ABLE 7 Maximum Allowable Intake or Exhaust V ent Length in Feet *Siz e intake and exhaus t pipe length separately . Values in table are for Intake OR Ex haust, not com bined total.
Page 15 T ABLE 7 Maximum Allowable Intake or Exhaust V ent Length in Feet *Siz e intake and exhaus t pipe length separately . Values in table are for Intake OR Ex haust, not com bined total.
Page 16 FIGURE 16 TYPICAL EXHAUST PIPE CONNECTIONS AND CONDENSA TE TRAP INST ALLA TION TRANSITION 2” 2” 2” 3” Use only the factory − supplied trap.
Page 17 FIGURE 18 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 TERM.
Page 18 Det ails o f Int ake a nd Ex haust Piping T erminations f or Direct V ent Installations NOTE − In Direc t V ent i ns tallations, combustion a ir is tak- en from outdoors and flue ga ses are discharged to out - doors. NOTE − Flue gas may be slightly acidic and may adversely affect some building materials.
Page 19 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 intak.
Page 20 FIGURE 22 FIELD−SUPPLIED W ALL TERMINA TION OR (15F74) W ALL RING TERMINA TION KIT With INT AKE ELBOW See venting table 7 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).
Page 21 12" (305mm) Min. above grade or average snow accumulation. FIGURE 24 DIRECT VENT CONCENTRIC W ALL TERMINA TION 71M80, 69M29 or 60L46 (US) 44W92 or 44W93 (Canada) INT AKE AIR EXHAUST AIR I.
Page 22 FIGURE 30 12” (305 mm) Minimum Above Grade or Average Snow Accumulation 1/2” (13 mm) FOAM INSULA TION (Field − Furnished) 5” (127 mm) 5 − 1/2” (140 mm) EXHAUST AIR INT AKE AIR GRADE 12” (305 mm) INT AKE AIR EXHAUST AIR GRADE 12” (305 mm) max.
Page 23 Condensate Piping This unit is designed for either right- or lef t-side exit of con- densate piping. Refer to figure 3 2 for condensate trap loca- tions. NOTE − If necessary the condensate trap may be inst alled up to 5 feet away from the furnace.
Page 24 FIGURE 34 Adapter 1/2 inch slip X 1/2 inch mpt (Not Furnished) Drain T rap Assembly (Furnished) V ent Drain T rap Clean Out 5 Feet Maximum Coupling 1/2 inch slip X slip (Not Furnished) 90 ° E.
Page 25 CAUTION A sep arate drain line must be run to the drain from the condensate trap to ensure proper drainage and pressure switch operation. DO NOT connect the con- densate trap drain into the drain line from the evapo- rator coil. FIGURE 35 SL98DFV with Evaporator Coil Drain Condensate trap and evaporator coil must drain separately as shown.
Page 26 GROUND JOINT UNION AUTOMA TIC GAS V AL VE (with manual shut−off valve) FIELD PROVIDED AND INST ALLED GROUND JOINT UNION Left Side Piping (St andard) Right Side Piping (Alternate) AUTOMA TIC GAS V AL VE (with manual shut−off valve) DRIP LEG DRIP LEG MANUAL MAIN SHUT−OFF VA LV E (1/8 in.
Page 27 1 − Seal any unused openings in the common venting sys- tem. 2 − Ins pect the venting system f or p roper si z e and h or izontal pitch. Determine that there is no blockage, restriction, leakage, corros ion, or other defic iencies whic h could cause an unsafe condition.
Page 28 1 − The power supply wiring must meet Class I restric- tions. Protected by either a fuse or circuit breaker , se- lect circuit protection and wire size according to unit nameplate. NOTE − Unit nameplate states maximum current draw . See table for maximum over−current protection.
Page 29 1 − When the thermostat is set to F AN ON," the indoor blower will run continuously at a percent a g e of the sec- ond−stage cooling speed when there is no cooling or heating demand. The percentage is set using DIP switches 6 and 7.
Page 30 FIGURE 41 icomfort T ouch Thermostat with SLP98DFV and Non−Communicating Outdoor Unit icomfort − ENABLED SLP98DFV FURNACE icomfort T ouch THERMOST A T NON−COMMUNICA TING OUTD.
Page 31 FIGURE 42 Optional Accessories for use with any icomfort T ouch System NOTE: 24V UV LIGHT APPLICA TIONS Furnace transformer will not have ad- equate va to power 24v UV light ap- plications. An additional transformer for UV light applications is required.
Page 32 T ABLE 14 Field Wiring Connections for Non−Communicating Thermost at Applications Thermost at DIP Switch Settings and On−Board Links (figure 44) Wiring Connections DIP Switch 1 W915 (Y1 to.
Page 33 T ABLE 14 Field Wiring for Non−Communicating Applications (Continued) Thermost at DIP Switch Settings and On−Board Links (figure 44) Wiring Connections DIP Switch 1 W915 (Y1 to Y2) T wo−.
Page 34 T ABLE 14 Field Wiring for Non−Communicating Applications (Continued) Thermost at DIP Switch Settings and On−Board Links (figure 44) Wiring Connections DIP Switch W915 (Y1 to Y2) T wo−St.
Page 35 FIGURE 43 TYPICAL SLP98DFV WIRING DIAGRAM.
Page 36 Integrated Control INTEGRA TED CONTROL THERMOST A T CONNECTIONS (TB1) 1/4" QUICK CONNECT TERMINALS FIGURE 44 RS−BUS LINK (TB82, future use) I+ = DA T A HIGH CONNECTION I − = DA T A LO.
Page 37 T ABLE 15 Non−Communicating Thermostat Selection Switch Settings Operation Thermost at Switch 1 Switch 2 Switch 3 V ariable Capacity Heat (35% to 100%) T wo−S tage Off On Off Three−S tag.
Page 38 Switches 8 and 9 −− Cooling Mode Blower Speed −− The unit i s shipped from the factory with the DIP switches posi- tioned for high speed (4) indoor blower motor operation during the cooling mode. The table below provides the cooling mode blower speeds that will result from dif ferent switch settings.
Page 39 Switches 1 4 th r ough 19 −− Heating Mode Blower S peed −− These switches are factory set at the OFF position which provides 100 % of normal speed during HIGH HEA T de- mand, 70% of normal speed during MID−RANGE HEA T deman d and 35% of normal speed during LOW HEA T de- mand.
Page 40 BLOWER DA T A SLP98DF070V36B BLOWER PERFORMANCE (less lter) HEA TING BLOWER PERFORMANCE Heating Adjust CFM Selections Heating Input Range and Blower V olume - CFM 35% 40% 50% 60% 70% 80% 90% 100% Increase (+15%) Heat CFM 495 543 639 735 830 926 1022 111 8 Increase (+7.
Page 41 BLOWER DA T A SLP98DF090V48C BLOWER PERFORMANCE (less lter) HEA TING BLOWER PERFORMANCE Heating Adjust CFM Selections Heating Input Range and Blower V olume - CFM 35% 40% 50% 60% 70% 80% 90% 100% Increase (+15%) Heat CFM 723 790 925 1060 1 195 1329 1464 1599 Increase (+7.
Page 42 BLOWER DA T A SLP98DF1 10V60C BLOWER PERFORMANCE (less lter) HEA TING BLOWER PERFORMANCE Heating Adjust CFM Selections Heating Input Range and Blower V olume - CFM 35% 40% 50% 60% 70% 80% 90% 100% Increase (+15%) Heat CFM 8 11 906 1096 1286 1475 1665 1855 2045 Increase (+7.
Page 43 T ABLE 24 COOLING OPERA TING SEQUENCE SLP98DFV and Single−St age Outdoor Unit OPERA TING SEQUENCE SYSTEM DEMAND SYSTEM RESPONSE System Condition S tep Demand Relative Humidity Compressor Blo.
Page 44 T ABLE 25 COOLING OPERA TING SEQUENCE SLP98DFV and T wo−Stage Out door Unit OPERA TING SEQUENCE SYSTEM DEMAND SYSTEM RESPONSE System Condition S tep Demand Relative Humidity Compressor Blowe.
Page 45 Unit S t art−Up FOR YOUR SAFETY READ BEFORE OPERA TING W ARNING Do not use this furnace if any part has been under- water . A flood−damaged fu rnace is extremely dan- gerous.
Page 46 9 − Replace the access panel. 10− Turn on all electrical power to to the unit. 1 1− Set the thermostat to desired setting. NOTE − When unit is initially started, steps 1 through 1 1 may need to be repeated to purge air from gas line.
Page 47 Proper Combustion Furnace should operate minimum 15 minutes with correct manifold pressure and gas flow rate before checking com- bustion. T ake combustion sample beyond the flue outlet and comp are to the tables below . The maximum carbon monoxide reading should not exceed 50 ppm.
Page 48 T emperature Rise Af te r the furnace has been started and supply and return air temperatures have been allowed to st abilize, check the temperature rise with the unit operating at 100 percent fir- ing rate. If necessary , adjust the blower speed to maintain the temperature rise within the range shown on the unit nameplate.
Page 49 closed contact s and pressure switches for normally open cont acts. The combustion air inducer is ener- gized at ignition speed, which is approximately the same as the inducer speed at 70 percent firing rate.
Page 50 Service W ARNING ELECTRICAL SHOCK, FIRE, OR EXPLOSION HAZARD. Failure t o follow safety warnings exactly could result in dangerous operation, serious injury , death or property damage. Improper servicing could result in dangerous opera- tion, serious injury , death, or property damage.
Page 51 19 − Thoroughly rinse and drain the heat exchanger . Soap solutions can be corrosive. T ake care to rinse entire assembly . 20 − Reinstall heat exchanger into cabinet making sure that the clamshells of the heat exchanger assembly are resting on the support located at the rear of the cabi- net.
Page 52 Planned Service A service technician should check the following items dur- in g an annual inspection. Power to the unit must be shut off for the service technician’s safety . Burners − Must be inspected for rust, dirt, or s igns of water .
Page 53 Integrated Control Diagnostic Codes Press the diagnostic push button and hold it to cycle through a menu of options. Every five seconds a new menu item will be dis played. Release the button when the desired mode is displayed. When a solid "P" is displayed, the furnace capacity/ size is programmed.
Page 54 Integrated Control Diagnostic Codes (continued) Code Diagnostic Codes/Status of Equipment Action Required to Clear and Recover E 223 Low pressure switch failed open − Refer to troubleshooting in installation instruction.
Page 55 Integrated Control Diagnostic Codes (continued) Code Diagnostic Codes/Status of Equipment Action Required to Clear and Recover E 295 Indoor blower motor temperature is too high. Indoor blower motor over temperature (motor tripped on internal protector), Check motor bear- ings, amperes.
Page 56 Configuring Unit Size Code Power−Up − Number displayed represent s by integrated control unit size code (furnace model and capacity). If three horizont al bars are displayed followed by continuous E203, furnace control does not recognize unit size code.
Page 57 T roubleshooting: Heating Sequence of Operation IGNITION AND CALL FOR LOW FIRE WITH TWO−ST AGE THERMOST A T Call For 2nd St age Heat Call For Heat Satisfied Limit Switch Closed? Limit Closes.
Page 58 T roubleshooting: Heating Sequence of Operation (Continued) CALL FOR HIGH FIRE WITH TWO−ST AGE THERMOST A T 1st Call for High Fire? W ait for Call for Heat Satisfied 2 S tage Thermostat 2nd .
Page 59 T roubleshooting: Heating Sequence of Operation (Continued) CALL FOR HEA T SA TISFIED 1st S tage Heat 2nd S tage Heat 2nd S tage Call for Heat satisfied? NO 1st S tage Call for Heat satisfied?.
Page 60 T roubleshooting: Heating Sequence of Operation (Continued) IGNITION AND CALL FOR HEA T WI TH SINGLE−ST AGE THERMOST A T Call For Heat Satisfied Limit Switch Closed? Limit Closes Within 3 Mi.
Page 61 T roubleshooting: Cooling Sequence of Operation CALL FOR COOLING 1st S tage Cooling Request Received Energize 1st S tage Cooling Contactor (Compressor & Fan) 2nd S tage Cooling Request? YE.
Page 62 T roubleshooting: Continuous Fan Sequence of Operation CONTINUOUS LOW SPEED INDOOR BLOWER SEQUENCE OF OPERA TION (S peed Determined by Dip Switch settings) De−Energize Ramping Profile NO Req.
Page 63 Rep air Parts List The following repair parts are available through Lennox dealers. When ordering parts, include the complete furnace model number listed on the nameplate −− Example: SLP98DF070V36B. All service must be performed by a licensed profes- sional installer (or equivalent), service agency , or gas supplier .
Page 64 Requirement s for Commonwealth of Massachusetts Modifications to NFP A−54, Chapter 10 Revise N FP A− 54 section 10.8.3 to add the following re- quirement s: Fo r all side wall, horizontall.
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