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1. OTHER THAN FAN ASSISTED TOTAL FAN ASSISTED TOTAL 1 000 S BTUH GAS INPUT RATE 1 000 S BTUH GAS INPUT RATE ACH 30 40 50 44 66 88 110 132 154 Space Volume Ft M3 0 60 1 050 1 400 1 750 1 100 1 650 2 200 2 750 3 300 3 850 29 7 39 6 49 5 81 1 46 7 62 2 77 8 93 4 109 0 0 50 1 260 1 680 2 100 1 320 1 980 2 640 3 300 3 960 4 620 85 6 47 5 59 4 87 3 56 0 74 7 93 4 112 1 130 8 0 40 1 575 2 100 2 625 1 650 2 475 3 300 4 125 4 950 5 775 44 5 59 4 74 3 46 7 70 0 93 4 116 8 140 1 163 5 0 30 2 100 2 800 3 500 2 200 3 300 4 400 5 500 6 600 7 700 59 4 79 2 99 1 62 2 93 4 124 5 155 7 186 8 218 0 0 20 3 150 4 200 5 250 3 300 4 950 6 600 8 250 9 900 11 550 89 1 118 9 148 6 93 4 140 1 186 8 233 6 280 3 327 0 0 10 6 300 8 400 10 500 6 600 9 900 13 200 16 500 19 800 23 100 178 3 237 8 297 3 186 8 280 3 373 7 467 2 560 6 654 1 0 00 NP NP NP NP NP NP NP NP NP NP Not Permitted F PER CIRCULATING AIR T DUIS Pr rea _ VENT THROUGH ROOF OUTDOORS NEUSS i l l Lob d i i EN i dis EE l NN a i 305mm 12 MAX D 12 12 MAX 305mm S 305 1SQN Oy VENT _ MAX reum ETH B 5 THROUGH FE i Ez z1SQIN BrH lt RooF 3o Pi PER 1000 s 1SQIN m BTUH IN DOOR Oa PER OR WALL o lt BTUH Sk Ok 2 HEATED Pin SPACE DUCTS E g SPACE ed erm a TE 6 MIN 152mm OUTDOORS T z 3 2 zo F
2. FURNACE PLENUM OPENING FLOOR OPENING CASING APPLICATION WIDTH A B c D Upflow Applications on Combustible or Noncombustible Floor 12 11 16 21 5 8 13 5 16 22 1 4 ing KGASB subbase not required 322 549 338 565 Downflow Applications on Noncombustible Flooring KGASB 12 9 16 19 13 3 16 19 5 8 14 3 16 subbase not required 319 483 335 498 Downflow applications on combustible flooring KGASB sub 11 13 16 19 13 7 16 20 5 8 360 base required 284 483 841 600 Downflow Applications on Combustible Flooring with CNPV CNRV CAR or CAP Coil Assembly or KCAKC coil box E ud i 59 Mene So KGASB subbase not required Upflow Applications on Combustible or Noncombustible Floor 16 21 5 8 16 5 8 22 1 4 ing KGASB subbase not required 406 549 422 565 Downflow Applications on Noncombustible Flooring KGASB 15 7 8 19 16 1 2 19 5 8 17 12 subbase not required 403 483 419 498 445 Downflow applications on combustible flooring KGASB sub 15 1 8 19 16 3 4 20 5 8 base required 384 483 425 600 Downflow Applications on Combustible Flooring with CNPV CNRV CAR or CAP Coil Assembly or KCAKC coil box ee 19 16 1 2 20 394 483 419 508 KGASB subbase not required Upflow Applications on Combustible or Noncombustible Floor 19 1 2 21 5 8 20 1 8 22 1 4 ing KGASB subbase not required 495 549 511 565 Downflow Applications on Noncombustible Flooring KGASB 19 3 8 19 20 19 5 8 21 subbase
3. SPECIFIC GRAVITY OF NATURAL GAS ALTITUDE RANGE HEAT VALUE AT ALTITUDE lag Manifold e Manifold Fs uei Manifold id Manifold BTU CU FT Pressure Pressure Pressure Pressure 35 EEA 5 0 to 2000 Eici 1025 m s Ea 1100 3 5 C DV 58ST 2001 to 3000 610 to 914 EN I Oi NJ N SN m NJ c e S N N N Cop e o e Co mi NJ c Go e oj o CO Gof o e oJ oJ co e o OF to 900 ie N nf S no e e e e DI pF mf e o e e S S rof eol e el e ol A Ol N Coy O ro oj oy Ny J Poy N DO Ni Oj N 9 NI NJ NI oo tol SS i S ss i se T S sl p im jj EE NI sme EE a NE NN ERE NE NN 25 7 25 7 r 37 _ 347 327 m 13 Go Co rol A NI Oo 8 6 4 3 6 4 2 T Fi 3 G NJ 3001 to 4000 914 to 1219 G C o POF r J POF Pop Oo O m A AY oj NF CO o 4001 to 5000 1219 to N Pop NI OW Ni Oo E 43 43 43 43 43 43 43 43 43 43 43 43 43 43 43 43 43 lv gt T 43 43 43 43 43 43 43 43 43 43 43 43 43 43 43 43 43 3 nv O D ar v N Orifice numbers 43 are factory in 41 58ST Table 15 Orifice Size and Manifold Pressure In W C for Gas Input Rate Continued Tabulated data based on 21 000 btuh per burner derated 4 percent for each 1000 ft 305 M above sea level AVG GAS SPECIFIC GRAVITY OF NATURAL GAS
4. 1lonuoo uo e 1 eA e seD pesojo xonis 140 49949 Anos 0 s lnului G pem pue amod 4o uii LNOMOO7 ONILWAH SVO YE epoo SNIS 89S sinou Jaye 1esoJ ojne Ionuoo sjdwaye y ul owej saod pue seb lluBi 01 pajre wayshS 1010420 1 NOILIN I SE epoo Bag sinou e 1eye 1ese o1ne Iim JOUOD seinuiu g uey jeBuo uedo S pesn 4 4YOUMS JUBA pexoojg JO inojo1 eurey prenBojes yep Pulj eui JI S1990 104901 110901 LINOYIO UNNT ponad Aejap uo JeMo q eui Buunp suedo M H U uA JO pesojo M Y y JO jjeo e Buunp dn pejewod SI Hun ji spuooes 06 10 suni Jewo g uonejedo euuoN Av HO ASLI dN H3MOd Y3L4Y NO H3MO 18 uiejs s xoeuo 0 ejo o Burooo 10 Bugeeu e uBnouui uj 1s s uny peidnuejui si At 10 AS LL 4amod 1e euauM peseJe q osje ueo sepoo sniejs peJojs spieoq qan qati uo sinou ZZ Jaye pasesa ase Sepoo peJolS GOO SNOIASAYd ON 50 CASING GROUP Outer door Blower door Top filler plate Bottom filler plate Bottom enclosure ELECTRICAL GROUP Control bracket Junction box Limit switch es Circuit board Door switch Transformer Wiring harness 115v Wiring harness 24v BLOWER GROUP Blower housing Blower cutoff Blower motor Blower wheel Capacitor where used PARTS REPLACEMENT INFORMATION GUIDE GAS CONTROL GROUP Manifold Burner assembly Orifice Flame sensor Hot surface igniter Gas valve Manual reset limit switches Burner support assembly
5. INSTALLATION MINIMUM INCHES CLEARANCE TO COMBUSTIBLE CONSTRUCTION This furnace is approved for UPFLOW DOWNFLOW and This forced air furnace is equipped for use with natural Improper adjustment alteration service gas at altitudes 0 10 000 ft HORIZONTAL installations maintenance or installation can cause 0 3 050 Clearance arrows serious injury or death 050m do not change with Jury i An accessory kit supplied by furnace orientation the manufacturer shall be used Read and follow Instructions and to convert to propane gas use a precautions in User s Information Manual or may be required for some provided with this furnace Installation natural gas applications and service must be performed by a This furnace is for indoor qualified service agency or the gas installation in a building supplier constructed on site This furnace may be installed on combustible flooring in alcove or closet at minimum clearance as indicated by the diagram from combustible material m This furnace may be used with Clearance in inches INSTALLATION a Type B 1 Vent and may be Vent Clearance to combustibles 1 This furnace must be installed in pellets Mi ee Wii oinen For Single Wall vents 6 inches 6 po accordance with the manufacturer s gas req appiances For Type B 1 vent type 1 inch 1 po instructions and local codes In the absence of local codes follow the National MINIMUM INCHES CLEARANCE
6. protected to avoid damage by vehicles When the furnace is installed in a public garage airplane hangar or other building having a hazardous atmosphere the furnace must be installed in accordance with the NFGC See Fig 5 A CAUTION PERSONAL INJURY AND OR PROPERTY DAMAGE HAZARD Failure to follow this caution may result in furnace component damage This gas furnace may be used for heating buildings under construction provided that The furnace is permanently installed with all electrical wiring piping venting and ducting installed according to these installation instructions A return air duct is provided sealed to the furnace casing and terminated outside the space containing the furnace This prevents a negative pressure condition as created by the circulating air blower causing a flame rollout and or drawing combustion products into the structure The furnace is controlled by a thermostat It may not be hot wired to provide heat continuously to the structure without thermostatic control Clean outside air is provided for combustion This is to minimize the corrosive effects of adhesives sealers and other construction materials It also prevents the entrainment of drywall dust into combustion air which can cause fouling and plugging of furnace components The temperature of the return air to the furnace is maintained between 55 F 13 C and 80 F 27 C with no evening setback or sh
7. 1140 1075 995 905 790 620 ide s Med Low 1200 1175 1145 1105 1050 990 920 840 725 555 UE E High 1755 1700 1635 1570 1505 1435 1350 1260 1160 1055 048070 i Med High 1550 1520 1475 1430 1375 1810 1240 1155 1070 970 ide s Med Low 1355 1340 1810 1280 1240 1190 1125 1060 975 890 mm ES High 1605 1570 1535 1465 1385 1285 1175 1055 895 645 042090 i den a Med High 1470 1445 1410 1380 1300 1220 1115 990 830 600 ide s Med Low 1310 1295 1265 1230 1195 1120 1025 915 710 565 wanpu mom High 1940 1880 1805 1720 1635 1540 1425 1290 1090 830 IO san Med High 1740 1700 1650 1590 1525 1440 1335 1195 1010 820 Med Low 1505 1505 1480 1440 1375 1300 1190 1045 890 740 High 2405 2310 2220 2130 2025 1920 1790 1660 1530 1350 Bottom Only Med High 2170 2110 2040 1970 1895 1785 1675 1565 1420 1260 Med Low 1920 1875 1835 1780 1715 1630 1535 1420 1275 1135 High 2530 2450 2365 2270 2165 2065 1940 1805 1670 1505 Med High 2230 2170 2110 2050 1985 1890 1780 1660 1525 1360 Med Low 1895 1890 1845 1815 1755 1685 1600 1480 1350 1180 090 20 Both Sides or 1 060090 Side amp Bottom High 2475 2395 2300 2200 2090 1985 1865 1730 1585 1425 1Side Only Med High 2105 2145 2070 2010 1940 1845 1735 1620 1475 1325 Med Low 1850 1860 1810 1770 1715 1650 1555 1445 1310 1150 High 16
8. 2375 2285 2185 2105 1995 1870 1720 1555 nee po ipa Med High 2155 2125 2075 2015 1935 1830 1780 1635 1485 1365 IIS SN ATQUE Med Low 1800 1790 1770 1735 1695 1640 1570 1465 1345 1225 High Lu 2260 2180 2070 1975 1865 1740 1595 1440 1Side Only Med High 2140 2085 2020 1950 1850 1745 1695 1545 1415 1290 Med Low 1800 1790 1770 1735 1695 1640 1570 1465 1345 1225 58ST A filter is required for each return air inlet Airflow performance included 3 4 in 19 mm washable filter media such as contained in factory authorized ac cessory filter rack To determine airflow performance without this filter assume an additional 0 1 In W C available external static pressure Indicates unstable operating conditions UPFLOW YES YES NO DOWNFLOW YES YES NO Fig 14 Duct Flanges 15 HORIZONTAL YES YES NO A02020 58ST 1 4 emm THREADED ROD 4 REQ OUTER DOOR ASSEMBLY SECURE ANGLE IRON TO BOTTOM OF FURNACE WITH 3 8 x9 s 19mm SCREWS TYPICAL FOR 2 SUPPORTS 8 203mm MIN FOR DOOR REMOVAL 1 25mm SQUARE 1 1 4 x1 1 4 x1 8 32x32x3mm ANGLE IRON OR UNI STRUT MAY BE USED 2 HEX NUTS 2 WASHERS amp 2 LOCK WASHERS REQ PER ROD A1
9. SINGLE R 4 Ew ee 9 f PHASE 115 V FIELD AUXILIARY o p I e b 4 G SUPPLIED _ J BOX L GND DISCONNECT 4 en NOTE Is CONDENSING UNIT 24 V TWO TERMINAL WIRE BLOCK FURNACE NOTES 1 Connect Y terminal in furnace as shown for proper blower operation 2 Some thermostats require a C terminal connection as shown 3 If any of the original wire as supplied must be replaced use same type or equivalent wire A99440 Fig 26 Heating and Cooling Application Wiring Diagram with Single Stage Thermostat 23 58ST 24 V WIRING Make field 24 v connections at the 24 v terminal strip See Fig 25 Connect terminal Y as shown in Fig 26 for proper cooling operation Use only AWG No 18 color coded copper thermostat wire The 24 v circuit contains an automotive type 3 amp fuse located on the control Any direct shorts during installation service or maintenance could cause this fuse to blow If fuse replacement is required use ONLY a 3 amp fuse of identical size ACCESSORIES 1 Electronic Air Cleaner EAC Connect an accessory Electronic Air Cleaner if used us ing 1 4 in female quick connect terminals to the two male 1 4 in quick connect terminals on the control board marked EAC 1 and EAC 2 The terminals are rated for 115 VAC 1 0 amps maximum and are energized during blower motor operation See Fig 24 2 Humidifier HUM Connect an accessory 24 VAC 0 5 amp maximum hu
10. allowing the furnace heat exchangers to heat up more quickly then restarts at the end of the blower ON delay period at HEAT speed When the thermostat calls for cooling the blower motor BLWM will operate at COOL speed When the thermostat is satisfied the blower motor BLWM will operate an addi tional 90 sec on COOL speed before reverting back to continuous blower speed When the R to G circuit is opened the blower motor BLWM will continue operating for an additional 5 sec if no other function requires blower motor BLWM opera tion Heat Pump When installed with a heat pump the furnace control auto matically changes the timing sequence to avoid long blower off times during demand defrost cycles When the R to Wand Y or R to W and Y and G circuits are energized the furnace control CPU will continue to turn on the blower motor BLWM at HEAT speed and begin a heating cycle The blower motor BLWM will remain on until the end of the prepurge period then shut off for 24 sec then come back on at HEAT speed When the W input signal disappears the furnace control begins a normal in ducer post purge period and the blower switches to COOL speed after a 3 sec delay If the R to W and Y and G signals disappear at the same time the blower motor BLWM will remain on for the selected blower OFF delay period If the R to W and Y signals disap pear leaving the G signal the blower motor BLWM will continue running the blower motor
11. 46 A05026 T A01050 Fig 48 Cleaning Heat Exchanger Cell 4 Insert brush end of cable in burner inlet opening of cell and proceed to clean 2 lower passes of cell in same manner as upper pass 5 Repeat foregoing procedures until each cell in furnace has been cleaned 6 Using vacuum cleaner remove residue from each cell 7 Using vacuum cleaner with soft brush attachment clean burner assembly 8 Clean flame sensor with fine steel wool 9 Install NOx baffles if removed 10 Reinstall burner assembly Center burners in cell openings 10 Remove old sealant from cell panel and collector box flange 11 Spray releasing agent on the heat exchanger cell panel where collector box assembly contacts cell panel NOTE A releasing agent such as cooking spray or equivalent must not contain corn or canola oil aromatic or halogenated hydrocarbons or inadequate seal may occur and RTV sealant G E 162 6702 or Dow Corning 738 are needed before starting installation DO NOT substitute any other type of RTV sealant G E 162 P771 9003 is available through RCD in 3 oz tubes 12 Apply new sealant to flange of collector box and attach to cell panel using existing screws making sure all screws are secure 13 Reconnect wires to the following components Use con nection diagram on wiring label if wires were not marked for reconnection locations a Draft safeguard
12. 8 NR NR 159 213 10 NR NR 175 231 15 NR NR NR 283 20 NR NR NR 333 30 NR NR NR NR Local 99 Winter Design Temperature 11 F 16 C or lower Not recommended for any vent configuration The 99 6 heating db temperatures found in the 1997 or 2001 ASHRAE Fundamentals Handbook Climatic Design Information chapter Table 1A United States or the 2005 ASHRAE Fundamentals handbook Climatic Design Information chapter and the CD ROM included with the 2005 ASHRAE Fundamentals Handbook Table 9 Minimum Vent Heights Caution for the following applications use the minimum vertical vent heights as specified below For all other applications follow exclusively the national fuel gas code MINIMUM VENT MINIMUM VERTICAL VENT FURNACE VENT FURNACE ORIENTATION ORIENTATION INPUT BTUH HR a E obe 154 000 Downtlow bc eee p ien 132 000 5 127 12 3 6 pig 110 000 036 12 only Vent elbow right 154 000 Horizontal Left then up Fig 35 132 000 5 127 7 65 P Vent Elbow up 154 000 Horizontal Left Fig 36 132 000 5 127 7 65 Horizontal Left S 154 000 5 127 7 65 Vent elbow up then 110 000 Downflow left Fig 30 036 12 only 5 127 10 3 0 Vent elbow up then 110 000 Downflow right Fig 33 036 12 only 5 127 10 3 0 4 in 102 mm inside casing or vent guard Including 4 in 102 mm vent section s NOTE All vent configurations must also meet National
13. ALTITUDE HEAT VALUE e j RANGE AT 058 piae BTU CU FT No Pressure No Pressure No Pressure No Pressure pore qo qos onere pc psp rs ee 000 5001 to 6000 benda iu ppl pm a gy poe wed rej sees eoo 75 1 9 7 75 7000 L9 1829 to aed aed ae 451 5 BERN aed peg 2134 3 3 3 1 2 9 2 2 5 2 4 2 3 2 1 3 3 3 1 2 9 2 5 2 3 595 i oer AS Er 5 e eS E qom 33 d us E rj e posu e 7001 to 8000 2134 to 2438 8001 to 9000 2438 to 2743 9001 to 10 000 2743 to Orifice numbers 43 are factory installed 42 ee sc D If status code recall is needed briefly remove then reconnect one main limit wire to display stored status code On RED LED boards do not remove power or blower door before initiating status code recall After status code recall is completed component test will occur LED CODE STATUS CONTINUOUS OFF Check for 115VAC at L1 and L2 and 24VAC at SEC 1 and SEC 2 CONTINUOUS ON Control has 24VAC power RAPID FLASHING Line voltage 115VAC polarity reversed If twinned refer to twinning kit instructions EACH OF THE FOLLOWING STATUS CODES IS A TWO DIGIT NUMBER WITH THE FIRST DIGIT DETERMINED BY THE NUMBER OF SHORT FLASHES AND THE SECOND DIGIT BY THE NUMBER OF LONG FLASHES 11 NO PREVIOUS CODE Stored status code is erased automatically after 72 hours On 31 PRESSURE SW
14. Adjust air temperature rise by adjusting blower speed Increase blower speed to reduce temperature rise Decrease blower speed to increase temperature rise d Turn thermostat down below room temperature and remove blower access door e To change motor speed selection for heating remove blower motor lead from control HEAT terminal See Fig 25 Select desired blower motor speed lead from one of the other terminals and relocate it to the HEAT terminal See Table 11 for lead color identification Reconnect original lead to SPARE terminal Table 11 Speed Selection COLOR SPEED AS SHIPPED White Common BLW Black High COOL Yellowt Med High SPARE Blue Med Low SPARE Red Low HEAT A CAUTION FURNACE OVERHEATING HAZARD Failure to follow this caution may result in reduced furnace life Recheck temperature rise It must be within limits specified on the rating plate Recommended operation is at the midpoint of rise range or slightly above 6 Set thermostat heat anticipator a Mechanical thermostat Set thermostat heat anticipat or to match the amp draw of the electrical components in the R W circuit Accurate amp draw readings can be obtained at the wires normally connected to ther mostat subbase terminals R and W The thermostat anticipator should NOT be in the circuit while measur ing current 1 Remove thermostat from subbase or from wall 2 Connect an amp meter as shown in
15. Fig 44 across the R and W subbase terminals or R and W wires at wall 3 Record amp draw across terminals when furnace is in heating and after blower starts 4 Set heat anticipator on thermostat per thermostat instructions and install on subbase or wall b Electronic thermostat Set cycle rate for 4 cycles per hr 7 Adjust blower off delay The blower off delay has 4 ad justable settings from 90 sec to 180 sec The blower off delay jumpers are located on the furnace control board See Fig 25 To change the blower off delay setting move the jumper from one set of pins on the control to the pins used for the selected blower off delay Factory off delay setting is 120 sec 8 Set airflow CFM for cooling Select the desired blower motor speed lead for cooling airflow See Table 4 Air De livery CFM With Filter See Table 11 for lead color identification 1 5 HP motor models BLUE to HEAT RED to SPARE T Not available on 1 5 HP motors NOTE Continuous blower is the HEAT speed f Repeat steps a through e g When correct input rate and temperature rise is achieved turn gas valve ON OFF switch to OFF h Remove manometer or similar device from gas valve i Reinstall manifold pressure tap plug in gas valve 4 WARNING FIRE HAZARD Failure to follow this warning could result in personal injury death and or property damage Reinstall manifold pressure tap plug in gas valve to prevent gas leak j Reinstal
16. HEAT EXCHANGER GROUP Heat exchanger cell Cell panel Lox NOx baffle California models only INDUCER GROUP Housing assembly Pressure switch Inducer motor Inducer wheel Vent elbow assembly Draft safeguard switch 58ST Capacitor strap where used Grommet Power choke where used TO OBTAIN INFORMATION ON PARTS Consult your installing dealer or classified section of your local telephone directory under Heating Equipment or Air Conditioning Contractors and Systems headings for dealer listing by brand name or contact CARRIER CORPORATION Consumer Relations Department P O Box 4808 Syracuse New York 13221 4952 1 800 CARRIER Example of Model Number HEATING COOLING MODEL VARIATION VOLTAGE SERIES PACKAGING AIRFLOW SIZE CFM 58STA 155 1 6 1 20 WARNING Improper installation adjustment alteration service or maintenance can cause personal injury property damage or death Consult a qualified installer service agency or your local gas supplier for information or assistance The qualified installer or service agency must use only factory authorized replacement parts kits or accessories when modifying this product 51 58ST Copyright 2013 Carrier Corp 7310 W Morris St Indianapolis IN 46231 Edition Date 08 13 Catalog No 58ST 24SI e G ua kau pawa T nasa WOO ma mau p Manufacturer reserves the right to change
17. S9uM 19MO q 9s001 Uejs s jonp pejouisei 10 19414 Aq 10 YOOYD S fenuew s iinnb i SSA pue uos 1noJo4 eure J yo sinus Jamojq Inun usej 0 senumnuoo gg opoo SNS uiu e uey Sse uedo j 1n0x90 0 sebBueuo epoo sejnuiui g Ue jeBuo uedo J 4eBuo si je euotuM sexeuleJ YAMS uedo Inun JO s nnului t JO uni M J9Mo g u do si pesn Jl u91IWS 1u8A pexooiq Jo nojjo1 awe p1enBajes yep pwu ey seryeorpu INYA LINDYID LITT JUBA pejou1seu puiM 9AISS92X3 yous inss id Ano j q 101Ouu JBONPU eAnoejeq Buiqny eunsseid p lonnsqo 10 po1oeuuoosiq Aiddns sre uonsnquioo ayenbapeu pesn S457 J eunsseid se 1ejui MOT ASL I eBeyo 1eonpur 01 Buizis JUaA 1edoud 140 X90949 Aejep jjo JeMo q peioejes y JO uo BOD IM JeMojq poled ejep uo Jamojg Buunp suedo j An i e1o0jJeq s nnului s JO JO sinus 1eonpul sejnuiui S uey jeDuo uedo jj q3N3dO3H HO 3SO1O LON GIG HOLIMS 3Hn Sdud noi 1400s l e os 0 spee jejsouljeui 19euuoosiq spee yeJsoweu Buipnjour Buum Arz eBeyo uepuooes ul noo ous JO YOOUD N3dO SI 3Sfd SDVLIOA AHVONOO3S pesojo xXonis uos ainssalg eqn eansseJd p lonnsqO 10 49849 N3dO LON GIG HOLIAS d3HnsS3ud anea se xeo 10 uedo xoniS 10 YOBYD peJeoj o Si 1Inej Inun uni jim Jeonpu pezibueue ep si eA e seb aym D A01d si eurej4 IVNSIS 9NIAOHd3IAV 1H TIVINHONSV M AeA SeD 0 HOUS JO GJIMSIA
18. at any time specifications and designs without notice and without obligations Replaces 58ST 23SI 52
19. tude from local gas supplier b Obtain average yearly gas specific gravity from local gas supplier c Find installation altitude in Table 14 or 15 d Find closest natural gas heat value and specific gravity in Table 14 or 15 e Follow heat value and specific gravity lines to point of intersection to find orifice size and manifold pressure settings for proper operation f Check and verify burner orifice size in furnace NEVER ASSUME ORIFICE SIZE ALWAYS CHECK AND VERIFY g Replace orifice with correct size if required by Table 14 or 15 Use only factory supplied orifices See EXAMPLE 2 EXAMPLE 2 0 2000 ft 0 610 M altitude For 22 000 Btuh per burner application use Table 14 Heating value 1000 Btuh cu ft Specific gravity 0 62 Therefore Orifice No 43 Manifold pressure 3 7 In W C Furnace is shipped with No 43 orifices In this example all main burner orifices are the correct size and do not need to be changed to obtain proper input rate 3 Adjust manifold pressure to obtain correct input rate a Turn gas valve ON OFF switch to OFF b Remove manifold pressure tap plug from gas valve See Fig 42 c Connect a water column manometer or similar device to manifold pressure tap Turn gas valve ON OFF switch to ON Manually close blower door switch Set thermostat to call for heat wo eA Jumper R and W thermostat connections on furnace control board to start fu
20. 14 Table 5 Air Delivery CFM with Filter Continued FURNACE RETURN AIR SPEED EXTERNAL STATIC PRESSURE In W C SIZE INLET 0 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 0 9 1 0 m aar High 2065 2000 1930 1835 1710 1590 1420 1235 1025 835 0493135 a Med High 1790 1755 1705 1640 1550 1465 1295 1145 945 775 ide s Med Low 1480 1480 1480 1450 1380 1295 1160 1005 855 670 High 2445 2365 2280 2190 2085 1980 1850 1705 1520 1355 Bottom Only Med High 2130 2080 2025 1960 1880 1795 1690 1550 1405 1255 Med Low 1860 1830 1800 1755 1705 1630 1530 1415 1280 1140 135 22 Bottom Sides High 2355 2280 2160 2065 1930 1805 1655 1465 oeei3s or 1 Side amp Bot Med High 2120 2075 1995 1970 1905 1835 1735 1645 1515 1325 tom Med Low 1860 1830 1800 1755 1725 1630 1530 1415 1280 1140 High 2e 2215 2130 2030 1920 1795 1675 1540 1385 1 Side Only Med High 2070 2015 1970 1985 1855 1765 1655 1550 1445 1265 Med Low 1860 1830 1800 1755 1725 1630 1530 1415 1280 1140 High 2465 2430 2375 2305 2215 2110 2000 1865 1715 1530 Bottom Only Med High 2115 2095 2055 2005 1940 1845 1820 1675 1525 1390 Med Low 1800 1790 1770 1735 1695 1640 1570 1465 1345 1225 High pum
21. 15 4 19 83 29 8 8 20 12 Permissible limits of the voltage range at which the unit operates satisfactorily Unit ampacity 125 percent of largest operating component s full load amps plus 100 percent of all other potential operating components EAC humidifier etc full load amps T Time delay type is recommended t Length shown is as measured 1 way along wire path between unit and service panel for maximum 2 percent voltage drop 12 Complete electrical box wiring and installation Connect line voltage leads as shown in Fig 26 Use best practices NEC 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 cords must be able to handle the electrical requirements listed in Table 6 Refer to power cord manufacturer s listings 1 Remove cover from J Box 2 Route listed power cord through 7 8 in 22 mm diameter hole in J Box 3 Secure power cord to J Box bracket with a strain relief bushing or a connector approved for the type of cord used 4 Secure field ground wire to green ground screw on J Box bracket 5 Connect line voltage leads as shown in Fig 26 6 Reinstall cover to J Box Do not pinch wires between cover and bracket BX CABLE INSTALLATION IN FURNACE J BOX 1 Remove cover from J Box 2 Route BX cable into 7 8 inch 22 mm diameter hole in J Box 3 Secure BX cable to J Box
22. 78 46 92 231 30 120 240 600 80 45 90 225 31 116 232 581 82 44 88 220 32 113 225 563 84 43 86 214 33 109 218 545 86 42 84 209 34 106 212 529 88 41 82 205 35 103 206 514 90 40 80 200 36 100 200 500 92 39 78 196 37 97 195 486 94 38 76 192 38 95 189 474 96 38 75 188 39 92 185 462 98 37 74 184 40 90 180 450 100 36 72 180 41 88 176 439 102 35 71 178 42 86 172 429 104 35 69 173 43 84 167 419 106 34 68 170 44 82 164 409 108 33 67 167 45 80 160 400 110 33 65 164 46 78 157 391 112 32 64 161 47 76 153 383 116 31 62 155 48 75 150 375 120 30 60 150 49 73 147 367 Table 13 Filter Size Information In mm FILTER SIZE FURNACE CASING WIDTH SIDE BOTTOM FILTER TYPE RETURN RETURN 16 x25 x3 4 14 x25 x3 4 14 1 2 368 406 x635 x19 856 x635 x19 Washable 16 x25 x3 4 16 x25 x3 4 17 1 2 445 406 x635 x19 406 x635 x19 Washable 16 x25 x3 4 20 x25 x3 4 7 21 533 406 x635 x19 508 x635 x19 Washable 16 x25 x3 4 24 x25 x3 4 A 24 610 406 x635 x19 610 x635 x19 Washable Recommended Some furnaces may have 2 filters 38 Table 14 Orifice Size and Manifold Pressure In W C for Gas Input Rate Tabulated data based on 22 000 btuh per burner derated 4 percent for each 1000 ft 305 M above sea level AVG GAS SPECIFIC GRAVITY OF NATURAL GAS ALTITUDE RANGE HEAT VALUE 08588 06 0 62 a FT M AT ALTITUDE Orifice Manifold Orifice Manifold Orifice Manifold Orifice Manifold BTU CU FT No Press
23. For each leg install nut on bolt and then install bolt and nut in hole Install flat washer if desired COMBUSTIBLE 3 Install another nut on other side of furnace base Install FLOORING flat washer if desired 4 Adjust outside nut to provide desired height and tighten IN DA inside nut to secure arrangement A DOWNFLOW 5 Reinstall bottom closure panel if removed aN SUBBASE DOWNELOW INSTALLATION A SHEET METAL NOTE For downflow applications this furnace is approved for PLENUM use on combustible flooring when any one of the following 3 A RENS accessories are used Special Base KGASB Cased Coil Assembly Part No CNPV CNRV CAR or CAP Coil Box Part No KCAKC 1 Determine application being installed from Table 3 2 Construct hole in floor per Table 3 and Fig 11 A96285 3 Construct plenum to dimensions specified in Table 4 and Fig 12 Furnace Plenum and Subbase Installed on a Fig 11 Combustible Floor 11 58ST P NP ee FURNACE APPROVED COIL ASSEMBLY OR COIL BOX COMBUSTIBLE FLOORING SHEET METAL PLENUM 7232 gt 42202222 M FLOOR OPENING A08556 Fig 13 Furnace Plenum and Coil Assembly or Coil Box Installed on a Combustible Floor Bottom Return Air Inlet These furnaces are shipped with bottom closure panel installed in bottom return air opening Remove and discard this panel
24. Fuel Gas Code NFGC venting requirements NOTE For all unlisted vent configurations refer to National Fuel Gas Code NFGC venting requirements SEE NOTES 1 2 4 7 8 9 on the page following these figures A03208 Fig 28 Upflow Application Vent Elbow Up 29 SEE NOTES 1 2 3 4 7 8 9 on the pages following these figures A03209 Fig 29 Upflow Application Vent Elbow Right 58ST 58ST SEE NOTES 1 2 3 4 5 7 8 9 1 on the page following on the page following these figures these figures 03210 A03207 Fig 30 Downflow Application Vent Elbow Up then Left Fig 32 Downflow Application Vent Elbow Left then Up fr ll O SEE NOTES 1 2 4 5 7 8 9 SEE NOTES 1 2 3 4 5 7 8 9 on the page following on the page following these figures these figures A03211 A03212 Fig 31 Downflow Application Vent Elbow Up Fig 33 Downflow Application Vent Elbow Up then Right was N SEE NOTES 1 2 4 7 8 9 on
25. LO3N pue uid u w q AGL 40 xoeuo ou nb s s jueuoduuoo 1 yzoue eyeniui pue onuoo wo sseu reu 14u61 Endun lonuoo eoeuun eoejdeu sjeedai epoo ji jojuoo eoe deu n090 122 9 01 Jamod 18s H 10410 YOOYD BIEMYOS u do yonjs eja1 anjea sey eJnjrej WNDU eure J 0 enp 1n0y20 Jnou Je3je 1eseJ o1ny 100x901 AHLInOHIO TOHLNOO St LSss SHA ON yy Jedepy euuilu ui pesn u3l1IAS 1u A pexoorg x ponad dn uueA puooes s eu Jo pue au Aq eyuw eBuejo NO B 14u65 y seoq ou nb s 1se1 jueuoduioo eui ejeniui pue oJjuo9 y wou uOnoeuuoo 1elsouuu H OU PAOWAI 1S113 Jeu ay xoeuo 0 epoui S9 jueuoduuoo eu ui payesado eq ueo uieis s y Josues eure 10 UB eAe seb eui ul SI ulejqoud eui 48ujeuM eutuejep OL pepuno4D eq jou snw Josues eue eaw JOYS eoeuanj 0 po1oeuuoo eq ISN 94M NOIl A U991S A BA JJO Inus enuen yo pousny enea Sec deis 1xeu eui 0 Buipeeooud 9J0Joq SJ SUS HUIMO O eui 4994D e p JJo 1eMo q p b j s y 104 uo WOO Jemo q ponad ejep uo 1ewo q au Buunp 1sol S jeuDis eurej j sno90 1noyoo e10jeq SAW e1oui e eouenbes uoniuBi y jeedai IIIA jonuoo eui poled uoniubi 40 pen ay Buunp pesues jou s Swell j JHN 9NIAOHd NOLLINOI pum 9AISS92X3 Buizis jUaA Jodold juo p loins H u do Yyoums 1nolloi we Ajddns sre uonsnquioo eyenbepeu JOjJoedeo JO 10 OW J9MOJq eA2ejeq suonoeuuoo JO YOYMS eAn99jeq
26. RETURN AIR AIR RETURN UPFLOW AIR RESTRICTIONS Fig 18 Upflow Return Air Configurations and Restrictions 17 A02075 58ST RETURN AIR RETURN AIR SIDE RETURN NOT PERMITTED FOR ANY MODEL SUPPLY AIR SIDE RETURN NOT PERMITTED FOR ANY MODEL 066 060 22 AND 20 MODELS N ALL OTHER MODELS DOWNFLOWRETURNAIRCONFIGURATIONSANDRESTRICTIONS AIR FLOW MODELS RETURN AIR RETURN AIR RETURN AIR RETURN AIR COMBINATIONS OF 1 2 AND 3 CONNECTION1 CONNECTION2 CONNECTION3 ONLY ONLY ONLY YES Fig 19 Downflow Return Air Configurations and Restrictions RETURN AIR SIDE RETURN AIR NOT PERMITTED FOR 066 060 22 20 AIR FLOW MODELS RETURN AIR SUPPLY AIR E SIDE RETURN AIR NOT PERMITTED FOR 066 060 22 20 AIR FLOW MODELS al NOTE RESTRICTION SAME FOR RETURN HORIZONAL LEFT an AIR FLOW MODELS 066 060 22 AND 20 MODELS ALL OTHER MODELS HORIZONAL RETURN AIR RESTRICTIONS RETURN AIR CONNECTION 1 ONLY YES HORIZONTAL RETURN AIR CONFIGURATIONS AND RESTRICTIONS A02163 RETURN AIR RETURN AIR RETURN AIR CONNECTION2 CONNECTION3 COMBINATIONS ONLY ONLY OF 1 2 AND 3 A02162 Fig 20 Horizontal Return Air Configurations and Restrictions Upflow_and Horizontal Furnaces Connect supply air duct to flanges on furnac
27. See Fig 15 and 16 If the screws are attached to ONLY the furnace sides and not the bottom the straps must be vertical against the furnace sides and not pull away from the furnace sides so that the strap attachment screws are not in tension are loaded in shear for reliable support Platform Furnace Support Construct working platform at location where all required furnace clearances are met See Fig 2 and 17 For furnaces with 1 in 25 mm clearance requirement on side set furnace on non combustible blocks bricks or angle iron For crawl space installations if the furnace is not suspended from the floor joists the ground underneath furnace must be level and the furnace set on blocks or bricks Roll Out Protection Provide a minimum 17 3 4 in x 22 in 451 x 559 mm piece of sheet metal for flame roll out protection in front of burner area for furnaces closer than 12 inches 305 mm above the combustible deck or suspended furnaces closer than 12 inches 305 mm to joists The sheet metal MUST extend underneath the furnace casing by 1 in 25 mm with the door removed The bottom closure panel on furnaces of widths 17 1 2 in 445 mm and larger may be used for flame roll out protection when bottom of furnace is used for return air connection See Fig 17 for proper orientation of roll out shield Bottom Return Air Inlet These furnaces are shipped with bottom closure panel installed in bottom return air opening Remove and dis
28. THERMOSTAT REMOVED ANITICIPATOR CLOCK ETC MUST BE OUT OF CIRCUIT HOOK AROUND AMMETER lc FROM UNIT 24 V CONTROL TERMINALS EXAMPLE 2 2 AMPS ON AMMETER 0 5 AMPS FOR THERMOSTAT 10 TURNS AROUND JAWS ANTICIPATOR SETTING Fig 44 Amp Draw Check With Ammeter 36 BURNER ORIFICE A93059 A96316 Step 4 Check Safety Controls The flame sensor gas valve and pressure switch were all checked in the Start up procedure section as part of normal operation 1 Check Main Limit Switch es This control shuts off combustion control system and en ergizes air circulating blower motor if furnace overheats By using this method to check limit control it can be es tablished that limit is functioning properly and will operate if there is a restricted duct system or motor failure If limit control does not function during this test cause must be determined and corrected a Run furnace for at least 5 minutes b Gradually block off return air with a piece of card board or sheet metal until the limit trips c Unblock return air to permit normal circulation d Burners will re light when furnace cools down 2 Check draft safeguard switch The purpose of this control is to cause the safe shutdown of the furnace during certain blocked vent conditions a Verify vent pipe is cool to the touch b Disconnect power to furnace and remove vent con nector from furnace vent elbow c Restore power to fur
29. TO Fuel Gas Code ANSI Z223 1 NFPA54 COMBUSTIBLE CONSTRUCTION or CSA B 149 1 Gas Installation Code 2 This furnace must be installed so there are DOWNFLOW POSITIONS provisions for combustion and ventilation air See manufacturer s installation T Installation on non combustible floors only information provided with this appliance For Installation on combustible flooring only when installed on special base Part No KGASB0201ALL or NAHA01101SB Coil Assembly EBENE OPERATION EE Part No CAR CAP CNPV CNRV END4X ENWAX WENC WTNC This furnace is equipped with manual reset WENW OR WTNW limit switch es in burner compartment to 18 inches front clearance required for alcove protect against overheat conditions that can result from inadequate combustion air Indicates supply or return sides when furnace is in the horizontal supply or blocked vent conditions position Line contact only permissible between lines formed by 1 Do not bypass limit switches intersections of the Top and two Sides of the furnace jacket 2 If a limit opens call a quallified and building joists studs or framing Sa Uem III E iu 336996 101 REV C o BOTTOM Check entire gas assembly for leaks after lighting this appliance and reset limit switch A10269 Fig 2 Clearances to Combustibles Kiii JIST chamber and or heat exc
30. To retrieve status code proceed with the following NOTE NO thermostat signal may be present at control and all blower OFF delays must be completed a Leave 115 v power to furnace turned on b Remove outer access door c Look into blower access door sight glass for current LED status d BRIEFLY remove insulated terminal wire from the draft safeguard DSS switch until LED goes out 1 to 2 sec then reconnect it 2 When above items have been completed the LED flashes status code 4 times Record this status code for further troubleshooting 3 Component self test will begin Refer to component TEST section for complete test sequence 4 Check LED status 5 Refer to SERVICE label on front of the blower access door for more information 6 Check LED status If no previous faults in history control will flash status code 11 7 If LED status indicates proper operation RELEASE BLOWER ACCESS DOOR SWITCH reattach wire to R terminal on furnace control board replace blower access door and replace burner access door Step 2 Care and Maintenance 4 WARNING FIRE OR EXPLOSION HAZARD Failure to follow this warning could result in personal injury death and or property damage Never store anything on near or in contact with the furnace such as 1 Spray or aerosol cans rags brooms dust mops vacuum cleaners or other cleaning tools 2 Soap powders bleaches waxes or other cleaning compounds plastic or
31. WARNING and CAUTION These words are used with the safety alert symbol DANGER identifies the most serious hazards which will result in severe personal injury or death WARNING signifies hazards which could result in personal injury or death CAUTION is used to identify unsafe practices which may result in minor personal injury or 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 spe cified in the Location section of these instructions 3 Provide adequate combustion and ventilation air to the furnace space as specified in Air for Combustion and Ventilation section 4 Combustion products must be discharged outdoors Con nect this furnace to an approved vent system only as spe cified in the Venting section of these instructions 5 Never test for gas leaks with an open flame Use a com mercially available soap solution made specifically for the detection of leaks to check all connections as specified in the Gas Piping section 6 Always install furnace to operate within the furnace s in tended temperature rise range with a duct system which has an external static pressure within the allowable range as specified in the Start Up Adjustments and Safety Check sec
32. bracket with connectors ap proved for the type of cable used 4 Secure field ground wire to green ground screw on J Box bracket 5 Connect line voltage leads as shown in Fig 26 6 Reinstall cover to J Box Do not pinch wires between cover and bracket 22 TWINNING AND OR BLOWER OFF DELAY J2 JUMPER 24 V IHERMOSTAT TERMINALS 3 AMP FUSE aa SEC 2 SEC 1 LED OPERATION amp DIAGNOSTIC LIGHT Ad EAC 2 L2 nugonoganumumg 115 VAC L2 NEUTRAL CONNECTIONS BLOWER SPEED SELECTION TERMINALS EAC 1 TERMINAL 115 VAC 1 0 AMP MAX 115 VAC L1 LINE VOLTAGE CONNECTION COMPONENT TEST TERMINAL HUMIDIFIER TERMINAL 24 VAC 0 5 AMP MAX TRANSFORMER 24 VAC CONNECTIONS 3 58ST PL1 LOW VOLTAGE MAIN HARNESS CONNECTOR PL2 HOT SURFACE IGNITER amp INDUCER MOTOR CONNECTOR A11619 Fig 25 Furnace Control FIELD 24 V WIRING FIELD 115 208 230 460 V WIRING FACTORY 24 V WIRING FACTORY 115 V WIRING NOTE2 THERMOSTAT FIVE WIRE o TERMINALS FIELD SUPPLIED THREE WIRE I DISCONNECT I BLOWER DOOR qd X M deg UR Ec T EN 8E uu e 31 e el e THREE n Z iid 3 RU BU ___ PHASE eo ae HT S ms 4f N e e 4e lee 208 230 V m GND T ess l
33. configurations Do not use side return air Fig 12 If Coil Assembly Part No CNPV CNRV CAR openings in DOWNFLOW configuration or CAP or Coil Box Part No KCAKC is used install as shown in Fig 13 In upflow position with side return inlet s leveling legs may be used See Fig 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 lt _g _ A 5 16 PLENUM 8mm OPENING D j FLOOR 1 3 4 OPENING 44mm 8mm 5 16 A96283 Fig 11 Floor and Plenum Opening Dimensions NOTE It is recommended that the perforated supply air duct flanges be completely folded over or removed from furnace when installing the furnace on a factory supplied cased coil or coil box To remove the supply air duct flange use wide duct pliers or hand seamers to bend flange back and forth until it breaks off Be careful of sharp edges See Fig 14 44mm 1 3 4 S 44mm Sa A89014 Fig 10 Leveling Legs E C ce a FURNACE Leveling Legs If Desired OR COIL CASING WHEN USED To install leveling legs 1 Position furnace on its back Locate and drill a hole in each bottom corner of furnace See Fig 10 2
34. feature will not operate if any thermostat signal is present at the control Component test sequence is as follows Refer to service label attached to furnace or see Fig 45 a LED will display previous status code 4 times b Inducer motor starts and continues to run until Step f of component test sequence Hot surface igniter is energized for 15 sec then off Blower motor operates on HEAT speed for 10 sec Blower motor operates on COOL speed for 10 sec Inducer motor stops Tv o0 C Oo Reconnect R lead to furnace control board release blower door switch and re install blower door 4 Operate furnace per instruction on door 5 Verify furnace shut down by lowering thermostat setting below room temperature 6 Verify furnace restarts by raising thermostat setting above room temperature Step 3 Adjustments Table 10 Altitude Derate Multiplier for U S A ALTITUDE PERCENT DERATE MULTIPLIER FT M OF DERATE FACTOR 0619 0 1 00 aoe 12 0 90 oe 12 16 0 86 TEE nd 16 20 0 82 mS me 078 nop e un oen 28 32 0 70 32 8001 9000 2438 2743 9236 0 66 9001 10 000 2743 3048 590 0 62 Derate multiplier factors are based on midpoint altitude for altitude range 4 WARNING FIRE HAZARD Failure to follow this warning could result in injury death and or property damage DO NOT bottom out gas valve regulator adjusting screw T
35. 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 before and during supply pipe pressure test After all connections have been made purge lines and check for leakage at furnace prior to operating furnace The gas supply pressure shall be within the maximum and minimum inlet supply pressures marked on the rating plate with the furnace burners ON and OFF 20 Alternate cation A10291 A10141 Fig 24 Field Supplied Electrical Box on Furnace Casing ELECTRICAL CONNECTIONS 4 WARNING ELECTRICAL SHOCK HAZARD Failure to follow this warning could result in personal injury or death Blower access panel door switch opens 115 v power to control No component operation can occur Do not bypass or close switch with panel removed See Fig 26 for field wiring diagram showing typical field 115 v wiring Check all factory and field electrical connections for tightness 4 WARNING ELECTRICAL SHOCK AND FIRE HAZARD Failure to follow this warning could result in personal injury death or property damage The cabinet MUST have an uninterrupted or unbroken ground according to NEC ANSI NFPA 70 2011 or local codes to minimize personal injury if an electrical fault should occur This may consist of electrical wire conduit approved for electrical gr
36. material gas input rate air temperature rise unit leveling and unit sizing A CAUTION CUT HAZARD Failure to follow this caution may result in personal injury Sheet metal parts may have sharp edges or burrs Use care and wear appropriate protective clothing safety glasses and gloves when handling parts and servicing furnaces Improper installation adjustment alteration service maintenance or use can cause explosion fire electrical shock or other conditions which may cause death personal injury or property damage Consult a qualified installer service agency or your distributor or branch for information or assistance The qualified installer or agency must use factory authorized kits or accessories when modifying this product Refer to the individual instructions packaged with the kits or accessories when installing Follow all safety codes Wear safety glasses protective clothing and work gloves Have a fire extinguisher available Read these instructions thoroughly and follow all warnings or cautions include in literature and attached to the unit Consult local building codes the current editions of the National Fuel Gas Code NFGC NFPA 54 ANSI Z223 1 and the National Electrical Code NEC NFPA 70 Recognize safety information This is the safety alert symbol When you see this symbol on the unit and in instructions or manuals be alert to the potential for personal injury Understand the signal words DANGER
37. midifier if used to the 1 4 in male quick connect HUM terminal and COM 24V screw terminal on the control board thermostat strip The HUM terminal is energized when gas valve relay GVR is energized See Fig 24 NOTE A field supplied 115 v controlled relay connected to EAC terminals may be added if humidifier operation is desired during blower operation NOTE DO NOT connect furnace control HUM terminal to HUM humidifier terminal on Thermidistat Zone Controller or similar device See Thermidistat Zone Controller thermostat or controller manufacturer s instructions for proper connection VENTING The furnace shall be connected to a listed factory built chimney or vent or a clay tile lined masonry or concrete chimney Venting into an unlined masonry chimney or concrete chimney is prohibited When an existing Category I furnace is removed or replaced the original venting system may no longer be sized to properly vent the attached appliances An improperly sized Category I venting system could cause the formation of condensate in the furnace and vent leakage of condensate and combustion products and spillage of combustion products into the living space Vent system or vent connectors may need to be resized Vent systems or vent connectors must be sized to approach minimum size as determined using appropriate table found in the NFGC GENERAL VENTING REQUIREMENTS Follow all safety codes for proper vent sizing and insta
38. no movement after installation SIDEWALL VENTING This furnace is not approved for direct sidewall horizontal venting Per section 12 4 3 of the NFPA 54 ANSI Z223 1 2012 any listed mechanical venter may be used when approved by the authority having jurisdiction 27 58ST Table 7 Exterior Masonry Chimney Fan Nat Installations with Type B Double Wall Vent Connectors ONFPA amp AGA Combined Appliance Maximum Input Rating in Thousands of Btuh per Hour INTERNAL AREA OF CHIMNEY VENT HEIGHT SQ IN SQ MM FT M 12 19 28 38 7741 12258 18064 24516 6 1 8 74 119 178 257 8 2 4 80 130 193 279 10 3 0 84 138 207 299 15 4 5 NR 152 233 334 20 6 0 NR NR 250 368 30 9 1 NR NR NR 404 Table 8 Minimum Allowable Input Rating of Space Heat ing Appliance in Thousands of Btuh per Hour 58ST INTERNAL AREA OF CHIMNEY VENT HEIGHT SQ IN SQ MN FT M 12 19 28 38 7741 12258 18064 24516 Local 9996 Winter Design Temperature 17 to 26 degrees F 6 0 55 99 141 8 52 74 111 154 10 NR 90 125 169 15 NR NR 167 212 20 NR NR 212 258 30 NR NR NR 362 Local 99 Winter Design Temperature 5 to 16 degrees F 6 NR 78 121 166 8 NR 94 135 182 10 NR 111 149 198 15 NR NR 193 247 20 NR NR NR 293 30 NR NR NR 377 Local 99 Winter Design Temperature 10 to 4 degrees F 6 NR NR 145 196
39. not required 492 483 508 498 533 Downflow applications on combustible flooring KGASB sub 18 5 8 19 20 1 4 20 5 8 base required 473 483 514 600 Downflow Applications on Combustible Flooring with CNPV 19 19 20 20 CNRV CAR or CAP Coil Assembly or KCAKC coil box 483 483 508 508 KGASB subbase not required Upflow Applications on Combustible or Noncombustible Floor 23 21 1 8 23 5 8 22 1 4 ing KGASB subbase not required 584 537 600 565 Downflow Applications on Noncombustible Flooring KGASB 22 7 8 19 23 1 2 19 5 8 24 1 2 subbase not required 581 483 597 498 622 Downflow applications on Combustible flooring KGASB sub 22 1 8 19 23 3 4 20 5 8 base required 562 483 603 600 Downflow Applications on Combustible Flooring with CNPV CNRV CAR or CAP Coil Assembly or KCAKC coil box yu i 255 on 506 KGASB subbase not required AIR DUCTS Ductwork Acoustical Treatment General Requirements The duct system should be designed and sized according to accepted national standards such as those published by Air Conditioning Contractors Association ACCA Sheet Metal and Air Conditioning Contractors National Association SMACNA or American Society of Heating Refrigerating and Air Conditioning Engineers ASHRAE or consult The Air Systems Design Guidelines reference tables available from your local distributor The duct system should be sized to handle the required system design CFM
40. plastic containers gasoline kerosene cigarette lighter fluid dry cleaning fluids or other volatile fluids 3 Paint thinners and other painting compounds paper bags or other paper products For continuing high performance and to minimize possible equipment failure periodic maintenance must be performed on this equipment Consult your local dealer about proper frequency of maintenance and the availability of a maintenance contract A WARNING ELECTRICAL SHOCK AND FIRE HAZARD Failure to follow this warning could result in personal injury death or property damage Turn off the gas and electrical supplies to the unit and install lockout tag before performing any maintenance or service Follow the operating instructions on the label attached to the furnace 4 WARNING CARBON MONOXIDE POISONING AND FIRE HAZARD Failure to follow this warning could result in personal injury death and or property damage Never operate unit without a filter or with filter access door removed A CAUTION CUT HAZARD Failure to follow this caution may result in personal injury Sheet metal parts may have sharp edges or burrs Use care and wear appropriate protective clothing safety glasses and gloves when handling parts and servicing furnaces The minimum maintenance on this furnace is as follows 1 Check and clean air filter each month or more frequently if required Replace if torn 2 Check blower motor and wheel for cleanline
41. switch Inducer motor Pressure switch es Limit over temperature switch Gas valve Hot surface igniter Flame sensing electrode so gt S c c Flame rollout switches i Install NOx baffles if removed 14 Reinstall internal vent pipe if applicable 15 Reinstall vent connector on furnace vent elbow Securely fasten vent connector to vent elbow with 2 field supplied corrosion resistant sheet metal screws located 180 apart 16 Replace blower access door only if it was removed 17 Set thermostat above room temperature and check furnace for proper operation 18 Verify blower airflow and speed changes between heating and cooling A WARNING FIRE OR EXPLOSION HAZARD Failure to follow this warning could result in personal injury death and or property damage Never test for gas leaks with an open flame Use a commercially available soap solution made specifically for the detection of leaks to check all connections A fire or explosion may result causing property damage personal injury or loss of life 19 Check for gas leaks 20 Replace outer access door Step 3 Sequence of Operation NOTE Furnace control must be grounded for proper operation or control will lock out Control is grounded through green yellow wire routed to gas valve and manifold bracket Screw Using the schematic diagram in Fig 41 follow the sequence of operation through the different modes Read and fol
42. the Out door Combustion Air Method mentioned previously and 3 Outdoor openings shall be sized as follows a Calculate the Ratio of all Indoor Space volume divided by required volume for Indoor Combustion Air Method below b Outdoor opening size reduction Factor is 1 minus the Ratio in a above c Minimum size of Outdoor openings shall be the size required in Outdoor Combustion Air Method above multiplied by reduction Factor in b above The min imum dimension of air openings shall be not less than 3 in 80 mm INSTALLATION UPFLOW INSTALLATION Bottom Return Air Inlet These furnaces are shipped with bottom closure panel installed in bottom return air opening Remove and discard this panel when bottom return air is used To remove bottom closure panel perform the following 1 Tilt or raise furnace and remove 2 screws holding bottom filler panel See Fig 9 Bottom Closure Panel Bottom Filler Panel A10273 Fig 9 Removing Bottom Closure Panel 2 Rotate bottom filler panel downward to release holding tabs 3 Remove bottom closure panel 4 Reinstall bottom filler panel and screws Side Return Air Inlet These furnaces are shipped with bottom closure panel installed in bottom return air opening This panel MUST be in place when only side return air is used 10 NOTE Side return air openings can be used in UPFLOW and 4 If downflow subbase KGASB is used install as shown in most HORIZONTAL
43. 00 1550 1490 1425 1355 1260 1135 990 785 530 es j zi m or Med High 1475 1435 1395 1335 1285 1185 1070 890 725 450 ide s Med Low 1315 1295 1265 1220 1155 1080 985 810 675 440 mum eR High 1980 1915 1835 1750 1655 1495 1365 1185 965 700 oomo Med High 1745 1710 1650 1560 1450 1340 1205 1090 865 605 048110 Side s Med Low 1530 1515 1470 1400 1310 1215 1095 990 830 670 High 2485 2415 2340 2255 2160 2080 1950 1840 1720 1565 Bottom Only Med High 2135 2100 2060 2000 1930 1860 1765 1670 1555 1425 Med Low 1855 1840 1815 1775 1725 1675 1600 1510 1405 1290 110 22 Bottom Sides High 2355 2285 2190 2090 1965 1850 1705 1535 066110 or 1 Side amp Bot Med High 2140 2100 2050 1990 1935 1865 1760 1670 1545 1410 tom Med Low 1855 1840 1815 1775 1725 1675 1600 1510 1405 1290 High 2495 2440 2370 2290 2205 2120 2015 1910 1775 1625 1Side Only Med High 2030 2025 2000 1950 1905 1850 1750 1660 1555 1425 Med Low 1735 1725 1695 1650 1595 1535 1455 1335 1230 A filter is required for each return air inlet Airflow performance included 3 4 in 19 mm washable filter media such as contained in factory authorized ac cessory filter rack To determine airflow performance without this filter assume an additional 0 1 In W C available external static pressure Indicates unstable operating conditions
44. 0130 Fig 15 Horizontal Unit Suspension 22 GAUGE GALVANIZED STRAPS TYPICAL FOR 4 STRAPS gt AIR OPENING V d OUTER DOOR ASSEMBLY 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 A 4 222222 ZZ 4 P Z a BACK OF Za FURNACE x z P4 4 E METHOD 1 p FOLD ALL STRAPS UNDER A FURNACE AND SECURE WTH 4 8 x 3 4 19 mm SHEET METAL SCREWS 2 SCREWS IN SIDE AND 2 SCREWS IN BOTTOM AIR OPENING A10131 Fig 16 Horizontal Suspension with Straps 16 LINE CONTACT ONLY PERMISSIBLE BETWEEN LINES FORMED BY INTERSECTIONS OF THE TOP AND TWO SIDES OF THE FURNACE JACKET AND BUILDING JOISTS STUDS OR FRAMING A l EQUIPMENT MANUAL 17 3 4 451mm OVERALL 4 3 4 121mm UNDER DOOR 1 25mm UNDER FURNACE EXTEND OUT 12 305mm FROM FACE OF DOOR MIN On AREA WHEN USED WITH SINGLE WALL VENT CONNECTIONS 58ST A10164 RETURN AIR RETURN AIR OF 1 2 AND 3 SHUT OFF GAS VALVE SEDIMENT TRAP Fig 17 Typical Attic Installation SUPPLY AIR UPFLOW RETURN AIR CONFIGURATIONS AND RESTRICTIONS AIR FLOW MODELS RETURN AIR RETURN AIR Lm CONNECTION 1 CONNECTION 2 CONNECTION 3 COMBINATIONS T ONLY ONLY ONLY 066 060 22 AND 20 MODELS ALL OTHER MODELS YES p q4q _ RETURN
45. 58STA STX Single Stage Deluxe Induced Combustion 4 Way Multipoise Gas Furnace Series 160 turn to the experts Z7 Installation Start up Operating and Service and Maintenance Instructions SAFETY CONSIDERATIONS 2 Start Up Procedures a aqa ent chui wisa eee 32 INTRODUCTION 4 REIR RR 3 Adjustmetts iss eR RR ER eee eee E ewe es 37 CODES AND STANDARDS 4 Check Safety Controls _ 37 Safety as s asap usus sasaqa waqsa pa eke se ae sassa aus 4 Checklists J erp waqa gos tiers t PE Re PRA aa sans 38 General Installation 4 SERVICE AND MAINTENANCE PROCEDURES 43 Combustion and Ventilation Air 4 Introduction ever dare E Ce E eps 43 Duct Systems 2s ccce e Petr eene noA Re wee 5 Care and Maintenance 44 Acoustical Lining and Fibrous Glass Duct 5 Sequence of Operation 47 Gas Piping and Gas Pipe Pressure Testing 5 Wiring Diagrams 0 0 0 eee eee cee eee 48 Electrical Connections 5 Troubleshooting 48 Venting ee peHepe s by P EERE RC EEE S 5 PARTS REPLACEMENT INFORMATION GUIDE 51 LOCATION oie eee em ee Ree erra 5 AIR FOR COMBUSTION AND VENTILATION 7 Always Ask For INSTALLATION cec cete ideu oU PR Peto LER E RE 10 EM TORY m UTHORIZE Bo
46. 81 for Class 1 Rigid air ducts Supply Air Connections For a furnace not equipped with a cooling coil the outlet duct shall be provided with a removable access panel This opening shall be accessible when the furnace is installed and shall be of such a size that the heat exchanger can be viewed for possible openings using light assistance or a probe can be inserted for sampling the air stream The cover attachment shall prevent leaks 13 58ST Table 4 Air Delivery CFM with Filter FURNACE RETURN AIR EXTERNAL STATIC PRESSURE In W C 58ST PEED SIZE INLET 01 02 03 04 05 06 07 08 09 10 High 1035 995 945 895 835 770 675 565 390 195 de Rond or Med High 865 830 790 745 690 625 545 440 250 195 ide s Med Low 760 720 680 635 580 520 445 345 220 195 er eet High 1440 1375 1805 1240 1160 1070 975 870 730 560 036045 S Gar 3 Med High 1360 1300 1240 1175 1115 1040 950 850 725 575 ide s Med Low 1250 1210 1160 1100 1040 965 885 790 670 520 High 7030 1005 965 925 870 810 740 645 465 280 as pid et Med High 835 815 790 755 710 660 590 480 325 205 ide s Med Low 725 700 675 635 595 545 460 350 250 mex DM High 1425 1375 1820 1265 1200 1125 1035 940 830 655 036070 S di 3 Med High 1320 1280 1240 1205
47. AR INLET WIDTH SIZE LOCATION 045 08 024045 14 3 6 860 12 9 16 819 9 5 16 237 12 11 16 322 4 102 104 47 045 12 036045 14 3 6 360 12 9 16 819 9 5 16 237 12 11 16 322 4 102 107 49 070 08 024070 14 3 6 360 12 9 16 819 9 5 16 237 12 11 16 822 4 102 111 50 070 12 036070 14 3 6 860 12 9 16 819 9 5 16 237 12 11 16 822 4 102 115 52 070 16 048070 17 1 2 445 15 7 8 403 11 9 16 294 16 406 4 102 126 57 090 14 042090 17 1 2 445 15 7 8 403 11 9 16 294 16 406 4 102 127 58 090 16 048090 21 533 19 3 8 492 18 5 16 338 19 1 2 495 4 102 140 64 090 20 060090 21 533 19 3 8 492 18 5 16 338 19 1 2 495 4 102 146 66 110 12 036110 17 1 2 445 15 7 8 403 11 9 16 294 16 406 4 102 135 61 110 16 048110 21 533 19 3 8 492 18 5 16 338 19 1 2 495 4 102 146 66 110 22 066110 21 533 19 3 8 492 18 5 16 338 19 1 2 495 4 102 152 69 135 16 048135 21 533 19 3 8 492 18 5 16 338 19 1 2 495 4 102 149 68 135 22 066135 24 1 2 622 22 7 8 581 15 1 16 383 23 584 4 102 163 74 155 20 060155 24 1 2 622 22 7 8 581 15 1 16 383 23 584 4 102 170 77 135 and 155 size furnaces require a 5 or 6 in 127 or 152 mm vent Use a vent adapter between furnace and vent stack See Installation Instructions for complete installation requirements Fig 1 Dimensional Drawing 58ST 58ST
48. Ave 3194 SI SHA SHA SHA amp pesojo YMS JOOP S P sol9 YMS JOOP S g1 pue 11 AGL 3194 SI uo 1uBij snes q31 SI LYVLS Fig 49 Troubleshooting Guide 49 SHA lonuoo eoeuun vejd y ON uo ejs pue luBi si uinq ueu AA SHA pono l eoe deu ON anea eod A 1e u lu uno S sduueouoluu 0 9010 v SI JUALINO EUIWON JUNI Y99493 pu joom 81s ulJ YIM Josues eure j ue O SHA lonuoo eo2ejdei UO eis JOU IIIA sJeuunq S 0 Mo q sdweonwu OG pue jeulwou 0 9 0 t anea jeoldA seau ON ey sI poued uoniuBi 104 ei Buunp juano SI 1u uno J eJ pue suonoeuuoo y99uO JOSUOS wey 4oeuo pue yeay 10 eo yeaday ON uoneaedo lu nluu lul JO xoeuo 01 1S0 1e d 1 pue uo 8ui09 0 1 MO q MOJI S3A uo els sieuunq urew 3y oq Ieuluuou Sr0 SHA deB sano uo 19e109UI 10 pexoo g eye1 Bury jedojd aub si uinq urew eu oq inss id seb jejui MOT ON uoniubi SJA uBnoij 10 ISAO 1169 awe eyenbepeu 10 49902 ON moj 0 seb moje pue uado anjena seb s oq eA e eoej deud Uo pauin ase seA e seb e yey YOOUD At 819991 anjea seh s oq suonoeuuoo syen seD ssoJoe JOJOWIJOA 199uuoO Y JO E9 o 1elsouueu jes pue peaj sowy H 94 120uu028H onuoo eoe dai YO J suonoeuuoo YOOYD jueuoduioo eAnoejep eoe deud ponad puooes 4yeyuB pue sseureu eu ui Ainunuoo JO 49849 apa p G y 10 1u9s 1d AGL SEM 101 U09 OU uo Z1 1VH
49. Carbon Monoxide Poisoning Hazard warning in venting section of these instructions to determine if an adequate amount of make up air is available The requirements for combustion and ventilation air depend upon whether or not the furnace is located in a space having a volume of at least 50 cu ft per 1 000 Btuh input rating for all gas appliances installed in the space Spaces having less than 50 cu ft per 1 000 Btuh re quire the OUTDOOR COMBUSTION AIR METHOD e Spaces having at least 50 cu ft per 1 000 Btuh may use the INDOOR COMBUSTION AIR STANDARD or KNOWN AIR INFILTRATION METHOD Outdoor Combustion Air Method 1 Provide the space with sufficient air for proper combus tion ventilation and dilution of flue gases using perman ent horizontal or vertical duct s or opening s directly communicating with the outdoors or spaces that freely communicate with the outdoors 2 Fig 7 illustrates how to provide TWO OUTDOOR OPENINGS one inlet and one outlet combustion and ventilation air opening to the outdoors e One opening MUST commence within 12 in 300 mm of the ceiling and the second opening MUST commence within 12 in 300 mm of the floor f Size openings and ducts per Fig 7 and Table 1 g TWO HORIZONTAL DUCTS require 1 sq in of free area per 2 000 Btuh 1 100 mm kW of combined input for all gas appliances in the space per Fig 7 and Table 1 h TWO OPENINGS OR VERTICAL DUCTS require 1 sq in of free area
50. DUCTS SINGLE DUCT OR OPENING TWO eee VERTICAL FURNACE 1 SQ IN 2 000 BTUH 1 SQ IN 3 000 BTUH 1 SQ IN 4 000 BTUH INPUT 1 100 SQ MM KW 734 SQ MM KW 550 SQ MM KW BTUH Free Area of Open Round Duct Free Area of Open Round Duct Free Area of Open Round Duct ing and Duct Dia ing and Duct Dia ing and Duct Dia Sq In Sq mm In mm Sq In Sq mm In mm Sq In Sq mm In mm 44 000 22 14194 6 152 14 7 9484 5 127 11 7096 4 102 66 000 33 21290 7 178 22 0 14193 6 152 16 5 10645 5 127 88 000 44 28387 8 203 29 3 18903 7 178 22 14193 6 152 110 000 55 35484 9 229 36 7 23677 7 178 27 5 17742 6 152 132 000 66 42580 10 254 44 0 28387 8 203 33 21290 7 178 154 000 77 49677 10 254 51 3 33096 9 229 38 5 24839 8 203 EXAMPLES Determining Free Area FURNACE WATER HEATER TOTAL INPUT 110 000 30 000 140 000 divided by 4 000 35 0 Sq In for each two Vertical Ducts or Openings 66 000 40 000 106 000 divided by 3 000 35 3 Sq In for a Single Duct or Opening 88 000 30 000 118 000 divided by 2 000 59 0 Sq In for each of two Horizontal Ducts Table 2 Minimum Space Volumes for 100 Combustion Ventilation and Dilution from Indoors
51. FPA 70 2011 Step 8 Venting NFGC NFPA 54 ANSI Z223 1 2012 chapters 12 and 13 ELECTROSTATIC DISCHARGE ESD PRECAUTIONS PROCEDURE P CAUTION FURNACE RELIABILITY HAZARD Failure to follow this caution may result in furnace component damage 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 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 fur nace chassis which is close to the control Tools held in a person s hand during grounding will be satisfactorily dis charged 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 un grounded objects etc 4 If you touch ungrounded objects and r
52. ITCH DID NOT CLOSE OR REOPENED If open longer than five minutes RED LED boards stored status codes can also be erased when power inducer shuts off for 15 minutes before retry Check for Excessive wind 115 VAC or 24 VAC to control is interrupted Proper vent sizing Defective inducer motor 12 BLOWER ON AFTER POWER UP 115 VAC or 24 VAC Blower runs for 90 seconds Low inducer voltage 115VAC Defective pressure switch if unit is powered up during a call for heat R W closed or R W opens during blower Inadequate combustion air supply Disconnected or obstructed pressure tubing on delay salt Low inlet gas pressure if LGPS used Restricted vent 13 LIMIT CIRCUIT LOCKOUT Lockout occurs if the limit draft safeguard flame rollout or If it opens during blower on delay period blower will come on for the selected blower blocked vent switch if used is open longer than 3 minutes off delay Control will auto reset after three hours Refer to 33 33 LIMIT CIRCUIT FAULT Indicates a limit draft safeguard flame rollout or blocked vent 14 IGNITION LOCKOUT Control will auto reset after three hours Refer to 34 switch if used is open Blower will run for 4 minutes or until open switch remakes 21 GAS HEATING LOCKOUT Control will NOT auto reset whichever is longer If open longer than 3 minutes code changes to lockout 13 Check for Mis wired gas valve Defective control valve relay If open less than 3 minutes stat
53. JO ye sow1 y WOO 4997 yoke spuooes G 0 JO uni m peeds 4OOO pue peeds JW3H Ajuo spreoq s usel Buoj jo 1 quunu ayy Aq uibip qan u3agNyv p ds Nv4 ioloui 1 M0 q ISH 24L 1s91 jueuodujoo eJnue eu 10 puooas ay pue seusey uous jo Jequunu eui Aq uni pue 11ejs IM Jeonpui eu eouenbes s jueuoduioo jeuq e yno of jim peuiuuejep 1BID 1514 eut YUM 1equunu yBIp Z onuoo au SAW p poo eui sle d 1 jozuoo eu Jejv inei snorveud ou sew sl epos smels 34L apoo sne euiuderecg JI ysel Buoj pue uoys LL4 epoo snes 10 yne snoredd eui jo epoo snieis eui use im Q31 no seo q31 eui Inun feuIWe AtZuuoO oi jeuruel NIML LS3 eui Buruous llue1u uuouu Aq epoo sntels snoad y j eoe4 osje ueo OA 1 2981 epoo snes Duneniui e10jeq jeued sseooe 1eMwo q 10 JeMod BAOWA JOU op jouoo q31 GAY UOC epoo snes p iols Aejdsip o1 yoUms psenBayes s usel Duo pue Oys jo uomeurquJoo e YIM yelp eui WO aM GAY euo joeuuooei pue sowa jjeruq epoo snieis fed OL A mo s 440 NO Buyung 1081 snes q31 SI Buiseud 1euuojsuen Avz eBeyo wo JedoJd 104 40euo pauu eje LHVLS 01 x9eq oB pue jeyeeJq qnoJio eso eUu0Jsue svedo y syun J Ayejod aBeyor ul 1284109 104 YOSYD sned e jnoujA Ajpides Buurg 106i snyeys q31 SI eoeuunj oy 1 y 1Q PNI WOY 9JIM U jnunuoo 10 429u2 YOUMS 100p eoe deu Jo 3u09 eoeuun eoejdeg ON S3A S3A S3A amp pesoj JexeeJq N11 SI yams 0j BuioD AG 3194 SI O3S PU O3S I
54. R MOTOR SPEED CHANGE RELAY SPDT LS1 2 LIMIT SWITCH AUTO RESET SPST N C P d FSE E BLWR BLOWER MOTOR RELAY SPST N O OL AUTO RESET INTERNAL MOTOR OVERLOAD BLWM BLOWER MOTOR PERMANENT SPLIT CAPACITOR TEMPERATURE SWITCH N C G L e PL1 9 G BVSS BLOCKED VENT SHUTOFF SWITCH MANUAL RESET SPST N C PCB PRINTED CIRCUIT BOARD CONTROL PL1 11 PL2 2 CIRCUIT CONNECTOR Com 24V p ss DRAFT SAFE GUARD SWITCH AUTO RESET SPST N C pia 2 GIRCUITHSI CONNECTOR PCB Note 5 id EAC 1 ELECTRONIC AIR CLEANER CONNECTION 115 VAC 1 0 AMP MAX PRS PRESSURE SWITCH SPST N O EAC 2 ELECTRONIC AIR CLEANER CONNECTION COMMON TESTITWIN COMPONENT TEST amp TWIN TERMINAL NOTES FRS 1 2 FLAME ROLLOUT SW MANUAL RESET SPST N C TRAN TRANSFORMER 115VAC 24VAC Paine FSE FLAME PROVING ELECTRODE 1 If any of the original equipment wire is replaced use wire rated for 105 C FU1 FUSE 3 AMP AUTOMOTIVE BLADE TYPE FACTORY INSTALLED e JUNCTION 2 Use only copper wire between the disconnect switch and the furnace junction box JB FU2 dB NSMIEDESUPPUEDI E INTERRUPT DEVICE O UNMARKED TERMINAL 3 This wire must be connected to furnace sheet metal for control to prove flame 4 Symbols are electrical representation only GND EQUIPMENT GROUND ROB CONTROL TERMINAL 5 Solid lines inside PCB are printed circuit board conductors and are not included in legend GV GAS VALVE REDUNDANT FACTORY WIRING 115VAC 6 Replace only with a 3 amp fuse GVR GAS VALVE RELAY SP
55. RONT O ZE5r 1SQIN 52 1saiN Esse PER Z PER 1000 Smoon s 4000 T BTUH IN DOOR gzz gt BTUH JO Z oRWALL 1SQIN S o maso LA Habs Ey t 305mm 12 MAX z c i MAX 305mm l 12 MAX 305mm A i 1 12 MAX Li 305mm CIRCULATING AIR DUCTS CIRCULATING AIR DUCTS ped TO PER 4000 OUTDOORS BTUH Minimum dimensions of 3 in 76 mm Minimum opening size is 100 sq in 64516 sq mm with minimum dimensions NOTE Use any of the following combinations of openings of 3 in 76 mm A amp BC amp DD amp EF amp G t Minimum of 3 in 76 mm when type B1 vent is used A03174 A03175 Fig 7 Air for Combustion Ventilation and Dilution for Fig 8 Air for Combustion Ventilation and Dilution from Outdoors Indoors 58ST The Standard Method 1 The space has no less volume than 50 cu ft per 1 000 Btuh of the maximum input ratings for all gas appliances installed in the space and 2 The air infiltration rate is not known to be less than 0 40 air changes per hour ACH The Known Air Infiltration Rate Method shall be used if the infiltration rate is known to be 1 Less than 0 40 ACH and 2 Equal to or greater than 0 10 ACH Infiltration rates greater than 0 60 ACH shall not be used The minimum required volume of the space varies with the number of ACH and shall be determined per Table 2 or Equations 1 and 2 Determine the minimum required volume for each appliance in the space and add the volumes to
56. ST N O FACTORY WIRING 24VAC 7 Inducer IDM and blower BLWM motors contqin internal auto reset thermal overload switches OL am pal ARE ENE C ST woj FIELD WIRING 145VAC 8 Neutral connections are interchangeable within the NEUTRAL connector block BUM 24 VAC HUMIDIFIER CONNECTION 0 5 AMP MAX uM FIELD WIRING 24VAC 9 preis peste are for average conditions see installation instructions for details on PM anes riri MOTA GREEN P CONDUCTOR ON CONTROL PCB 10 Factory connected when BVSS Chimney Adapter Accessory Kit is not installed ILK BLOWER ACCESS PANEL INTERLOCK SWITCH SPST NO 2 FIELD WIRING SCREW TERMINAL JT l acioy connected when L GE S je not used 0 m 12 Ignition lockout will occur after four consecutive unsuccessful trials for ignition Control will J1 BLOWER OFF DELAY JUMPER SELECTOR HEATING FIELD EARTH GROUND auto reset after three hours E N KC AL JUMPER COOLING m EQUIPMENT GROUND 13 Blower on delay gas heating 25 seconds cooling or heat pump 2 seconds LED LIGHT EMITTING DIODE FOR STATUS CODES RED R FiELDSPLICE Lu proderit enl crave ou i 160 or 180 seconds cooling or LGP LOW GAS PRE E SWITCH SPST N PLUG RECEPTACLE SPS OW GAS PRESSURE SWITGR SESTINO 15 Low Speed Tap on 4 speed motor only 339937 201 REV A A13111 Fig 41 Wiring Diagram 35 58ST x A06666 i Fig 42 Gas Control Valve Fig 43 Orifice Hole THERMOSTAT SUBBASE TERMINALS WITH
57. at HEAT speed after the selected blower OFF delay period is completed Step 4 Wiring Diagrams Refer to Fig 25 and 41 for wiring diagrams Step 5 Troubleshooting Refer to the service label See Fig 45 Service Label The Troubleshooting Guide can be a useful tool in isolating furnace operation problems Beginning with the word Start answer each question and follow the appropriate arrow to the next item The Guide will help to identify the problem or failed component After replacing any component verify correct operation sequence 48 LSss e901c0V JEISOWWJAY OY eoejde 10 Ye SOWAU eui 0 peua JEJSOWIOU A PZWOD 3y 199uuoo 10 S S91 jse eq e e1sul 149443 Jouoo eoeuunj OU UM ejqueduioo jou s ye SOWJSY 9u L amp 9JIM 1eduunf e Buisn uaym 1eedai ue qoud y seoq 10u09 eoeuiny eaejdeu peidnueju S Avg 10 ASL L J A Uu UA peseJe aq osje UBD sepoo snes 7 p iols spse0g q31 GAY UO sinou Zz Jaye Ionuoo eoeuunj peseie are sepoo snyeys uonejedo xpeuo 0 SY WO SOdIM JEJSOWIGU OY Ile joeuuoosiq l o o Buljoos 10 Bune u e ynos uj ls s ung Ionuoo eoeuunj SY uo seutua JeISOWJEY 5 esfeubls yesowseyy Avz pue ZA A Eb LH uey 1940 peusey SEM JO ZA A Queseud JI LA M s d Avz SI Quasaud J LA AA 01 puodsai ouoo y s oq po2 snyejs snoad e 194 SEM yey epoo sniejs y JO MOJ8q UOI 98S 0 05 ejqeo DunoeuuooJejut uo peuuni 9q JOU IIM J ILUNY pue snena seg
58. at the design external static pressure The furnace airflow rates are provided in Table 4 AIR DELIVERY CFM With Filter When a furnace is installed so that the supply ducts carry air circulated by the furnace to areas outside the space containing the furnace the return 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 passing through unconditioned space should be insulated and sealed to enhance system performance When air conditioning is used a vapor barrier is recommended Maintain a 1 in 25 mm clearance from combustible materials to supply air ductwork for a distance of 36 in 914 mm horizontally from the furnace See NFPA 90B or local code for further requirements NOTE Metal duct systems that do not have a 90 degree elbow and 10 ft 3 M of main duct to the first branch take off may require internal acoustical lining As an alternative fibrous ductwork may be used if constructed and installed in accordance with the latest edition of SMACNA construction standard on fibrous glass ducts Both acoustical lining and fibrous ductwork shall comply with NFPA 90B as tested by UL Standard 1
59. card this panel when bottom return air is used To remove bottom closure panel perform the following 1 Tilt or raise furnace and remove 2 screws holding bottom filler panel See Fig 9 2 Rotate bottom filler panel downward to release holding tabs 3 Remove bottom closure panel 4 Reinstall bottom filler panel and screws Side Return Air Inlet These furnaces are shipped with bottom closure panel installed in bottom return air opening This panel MUST be in place when side return air inlet s is used without a bottom return air inlet Not all horizontal furnaces are approved for side return air connections See Fig 20 FILTER ARRANGEMENT 4 WARNING CARBON MONOXIDE AND POISONING HAZARD Failure to follow this warning could result in personal injury death and or property damage Never operate a furnace without a filter or with filter access door removed There are no provisions for an internal filter rack in these furnaces Refer to the instructions supplied with accessory Media Cabinet for assembly and installation options This furnace requires a field supplied external filter rack or a suitable field supplied substitute such as the media cabinet See the Product Data Sheet for accessory list Refer to the instructions supplied with external filter rack for assembly and installation options 12 Table 3 Opening Dimensions In mm
60. cautions must be observed 1 The return air temperature must be at least 60 F 16 C db except for brief periods of time during warm up from setback at no lower than 55 F 13 C db or during initial start up from a standby condition 2 Adjust the gas input rate per the installation instructions Low gas input rate causes low vent gas temperatures caus ing condensation and corrosion in the furnace and or vent ing system Derating is permitted only for altitudes above 2000 ft 610 M 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 thermostat heat anticipator or cycle rate to reduce short cycling Air for combustion must not be contaminated by halogen compounds which include chlorides fluorides bromides and iodides These compounds are found in many common home products such as detergent paint glue aerosol spray bleach cleaning solvent salt and air freshener and can cause corrosion of furnaces and vents Avoid using such products in the combustion air supply Furnace use during construction of the building could cause the furnace to be exposed to halogen compounds causing premature failure of the furnace or venting system due to corrosion Vent dampers on any appliance connected to the common vent can cause condensation and corrosion in the venting system Do not use vent da
61. ce agency NOTE If the heat exchangers get a heavy accumulation of soot and carbon they should be replaced rather than trying to clean them thoroughly A heavy build up of soot and carbon indicates that a problem exists which needs to be corrected such as improper adjustment of manifold pressure insufficient or poor quality combustion 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 horizontal furnace having an internal vent pipe remove internal vent pipe within the casing 5 Disconnect wires to the following components Mark wires to aid in reconnection of be careful when discon necting wires from switches because damage may occur Draft safeguard switch Inducer motor Pressure switch es Limit overtemperature switch Gas valve Hot surface igniter Flame sensing electrode Sse mo P c tp Flame rollout switches i Remove NOx baffles on low NOx models 6 Remove screws that fasten the collector box assembly to the cell panel Be careful not to damage the collector box Inducer assembly and elbow need not be removed from collector box 7 Disconnect
62. ce the appliance being inspected into operation Adjust the thermostat so appliance is operating continuously 7 Test for spillage from draft hood equipped appliances at the draft hood relief opening after 5 minutes of main burner operation Use the flame of a match or candle 8 If improper venting is observed during any of the above tests the venting system must be corrected in accordance with the National Fuel Gas Code ANSI Z223 1 NFPA 54 9 After it has been determined that each appliance connected to the venting system properly vents when tested as outlined above return doors windows exhaust fans fireplace dampers and any other gas fired burning appliance to their previous conditions of use These furnaces are design certified as Category I furnaces in accordance with ANSI Z21 47 2012 CSA 2 3 2012 and operate with a non positive vent static pressure to minimize the potential for vent gas leakage Category I furnaces operate with a flue loss not less than 17 percent to minimize the potential for condensation in the venting system These furnaces are approved for common venting and multistory venting with other fan assisted or draft hood equipped appliances in accordance with the NFGC the 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 A WARNING CARBON MONOXIDE POISONING HAZARD Failure to foll
63. del when installed in a downflow application with furnace elbow turned to left side with the connector elbow outside furnace casing pointing upward See Fig 31 31 58ST START UP ADJUSTMENT AND SAFETY CHECK Step 1 General 4 WARNING FIRE HAZARD Failure to follow this warning could result in personal injury death and or property damage This furnace is equipped with manual reset limit switches in the gas control area The switches open and shut off power to the gas valve if a flame rollout or overheating condition occurs in the gas control area DO NOT bypass the switches Correct inadequate combustion air supply problem before resetting the switches A CAUTION CUT HAZARD Failure to follow this caution may result in personal injury Sheet metal parts may have sharp edges or burrs Use care and wear appropriate protective clothing safety glasses and gloves when handling parts and servicing furnaces 1 Maintain 115 v wiring and ground Improper polarity will result in rapid flashing LED and no furnace operation 2 Make thermostat wire connections at the 24 v terminal block on the furnace control Failure to make proper con nections will result in improper operation See Fig 26 3 Gas supply pressure to the furnace must be greater than 4 5 In W C 0 16 psig but not exceed 14 In W C 0 5 psig 4 Check all manual reset switches for continuity 5 Install blower compartment door Door mu
64. e Consult Chimney exposed to Is chimney to be dedicated to outdoors below a single instructions for roof line furnace application suitability Install chimney adapter per instructions Chimney is acceptable for use Fig 27 Chimney Inspection Chart 26 A10133 APPLIANCE APPLICATION REQUIREMENTS Appliance operation has a significant impact on the performance of the venting system If the appliances are sized installed adjusted and operated properly the venting system and or the appliances should not suffer from condensation and corrosion The venting system and all appliances shall be installed in accordance with applicable listings standards and codes The furnace should be sized to provide 100 percent of the design heating load requirement plus any margin that occurs because of furnace model size capacity increments Heating load estimates can be made using approved methods available from Air Conditioning Contractors of America Manual J American Society of Heating Refrigerating and Air Conditioning Engineers or other approved engineering methods Excessive oversizing of the furnace could cause the furnace and or vent to fail prematurely When a metal vent or metal liner is used the vent must be in good condition and be installed in accordance with the vent manufacturer s instructions To prevent condensation in the furnace and vent system the following pre
65. e clearance to combustible label The following types of furnace installations may re quire OUTDOOR AIR for combustion due to chemical exposures Commercial buildings Buildings with indoor pools Laundry rooms Hobby or craft rooms and Chemical storage areas 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 Chlorinated waxes and cleaners Chlorine based swimming pool chemicals Water softening chemicals De icing salts or chemicals Carbon tetrachloride Halogen type refrigerants Cleaning solvents such as perchloroethylene Printing inks paint removers varnishes etc e Hydrochloric acid Cements and glues e Antistatic fabric softeners for clothes dryers e Masonry acid washing materials All fuel burning equipment must be supplied with air for fuel combustion Sufficient air must be provided to avoid negative pressure in the equipment room or space A positive seal must be made between the furnace cabinet and the return air duct to prevent pulling air from the burner area and from draft safeguard 4 WARNING FIRE AND EXPLOSION HAZARD Failure to follow this warning could result in personal injury death and or property damage When the furnace is installed in a residential garage the burners and ignition sources must be located at least 18 inches above the floor The furnace must be located or
66. e supply air outlet Bend flange upward to 90 with wide duct pliers See Fig 14 The supply air duct must be connected to ONLY the furnace supply outlet air duct flanges or air conditioning coil casing when used DO NOT cut main furnace casing side to attach supply air duct humidifier or other accessories All accessories MUST be connected to duct external to furnace main casing NOTE For horizontal applications the top most 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 Fig 14 The supply air duct must be connected to ONLY the furnace supplyoutlet or air conditioning coil casing when used When installed on combustible material supply air duct must be connected to ONLY the factory approved accessory subbase or a factory approved air conditioning coil casing DO NOT cut main furnace casing to attach supply side air duct humidifier or other 18 accessories All accessories MUST be connected to duct external to furnace casing A WARNING FIRE HAZARD A failure to follow this warning could result in personal injury or death and or property damage Never connect return air ducts to the back of the furnace Follow instructions below Return Air Connections Downflow F
67. echarge 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 ungroun ded furnaces 6 Before removing a new control from its container dis charge your body s electrostatic charge to ground to pro tect the control from damage If the control is to be in stalled in a furnace follow items 1 through 4 before bringing the control or yourself in contact with the fur nace 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 LOCATION 4 WARNING CARBON MONOXIDE POISONING AND UNIT DAMAGE HAZARD Failure to follow this warning could result in personal injury or death and unit component damage Corrosive or contaminated air may cause failure of parts containing flue gas which could leak into the living space Air for combustion must not be contaminated by halogen compounds which include fluoride chloride bromide and iodide These elements can corrode heat exchangers and shorten furnace life Air contaminants are found in aerosol sprays detergents bleaches cleaning solvents 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 addit
68. ed Type B vent Relining with a listed metal liner or Type B vent is considered to be a vent in a chase If a metal liner or Type B vent is used to line a chimney no other appliance shall be vented into the annular space between the chimney and the metal liner 25 58ST 58ST 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 Crown condition Missing mortar or brick Rebuild crown Is chimney property lined with clay tile liner Is Repair liner and top liner or top seal seal in good or reline chimney as condition necessary Debris in cleanout Mortar tile metal vent fuel oil residue No Remove metal vent or liner Mortar or tile Remove mortar debris and tile debris Clay tile misalignment missing sections gaps Consult Part B of chimney adapter venting instructions for application F suitability Is chimney un i m i ine chimney with property Me pun P sized listed flexible metal sized listed liner or liner or Type B vent per Type B vent NFGC Vent Sizing Tables and liner or s vent manufacturer s instructions Installation instructions Not Suitable Condensate drainage at bottom of chimney Not Suitabl
69. ed with factory specified disposable media filter replace only with media filter having the same part number and size For expandable replacement media refer to the instructions included with the replacement media 6 Slide filter into cabinet 7 Replace filter cabinet door e Remove blower wheel from housing f Clean wheel and housing 10 Reassemble motor and blower by reversing steps 9f through 9a finishing with 9a Be sure to reattach ground 8 Turn on electrical supply to furnace wire to the blower housing BLOWER MOTOR AND WHEEL 11 Verify that blower wheel is centered in blower housing and set screw contacts the flat portion of the motor shaft A WAR N l N G Loosen set screw on blower wheel and reposition if neces sary ELECTRICAL SHOCK HAZARD 12 Spin the blower wheel by hand to verify that the wheel Failure to follow this warning could result in personal injury does not rub on the housing or death 13 Reinstall blower assembly in furnace Blower access door switch opens 115 v power to control No component operation can occur unless switch is closed Caution must be taken when manually closing this switch for service purposes A CAUTION UNIT DAMAGE HAZARD Failure to follow this caution may result in shortened heat exchanger life NOTE The blower wheel should not be dropped or bent as balance will be affected I Heating fan speed s MUST be adjusted to provide proper 7 air temperature rise a
70. en the thermostat is satisfied the R to W circuit is opened de energizing the gas valve GV stopping gas flow to the burners and de energizing the humidifier terminal HUM The inducer motor IDM will remain energized for a 5 second post purge period The blower motor BLWM and air cleaner terminal EAC 1 will remain energized for 90 120 150 or 180 seconds depending on the blower OFF delay selection The furnace control CPU is fact ory set for a 120 second blower OFF delay 2 Cooling Mode See Fig 26 for thermostat connections The thermostat closes the R to G and Y circuits The R to Y circuit starts the outdoor unit and the R to G and Y circuits start the furnace blower motor BLWM on COOL speed The electronic air cleaner terminal EAC 1 is energized with 115 vac when the blower motor BLWM is operating When the thermostat is satisfied the R to G and Y cir cuits are opened The outdoor unit will stop and the fur nace blower motor BLWM will continue operating on the COOL speed for an additional 90 sec Cut jumper J2 to reduce the cooling off delay to 5 sec See Fig 25 Continuous Blower Mode When the R to G circuit is closed by the thermostat the blower motor BLWM will operate on continuous blower speed same as HEAT speed Terminal EAC 1 is ener gized as long as the blower motor BLWM is energized During a call for heat the blower BLWM will stop during igniter warm up 17 sec ignition and blower ON delay 25 sec
71. ensation in the heat exchangers When installed parallel with the furnace dampers or other flow control must prevent chilled air from entering the furnace If the dampers are manually operated they must be equipped 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 e Section 9 3 of the NFPA 54 ANSI Z223 1 2012 Air for Combustion and Ventilation and applicable provi sions of the local building codes A CAUTION FURNACE CORROSION HAZARD Failure to follow this caution may result in furnace damage Air for combustion must not be contaminated by halogen compounds which include fluoride chloride bromide and iodide These elements can corrode heat exchangers and shorten furnace life Air contaminants are found in aerosol sprays detergents bleaches cleaning solvents salts air fresheners and other household products 58ST 58ST A WARNING CARBON MONOXIDE POISONING HAZARD Failure to follow this warning could result in personal injury or death The operation of exhaust fans kitchen ventilation fans clothes dryers attic exhaust fans or fireplaces could create a NEGATIVE PRESSURE CONDITION at the furnace Make up air MUST be provided for the ventilation devices in addition to that required by the furnace Refer to
72. eys shall conform to the Standard for Chimneys Fireplaces Vents and Solid Fuel Burning Appliances ANSI NFPA 211 2012 and must be in good condition U S A Refer to NFPA 54 ANSI Z223 1 2012 Sections 13 1 8 and 13 2 20 of the NFGC or the authority having jurisdiction to determine whether relining is required If relining is required use a properly sized listed metal liner Type B vent or a listed alternative venting design NOTE See the NFPA 54 ANSI Z223 1 2012 13 1 8 and 13 2 20 regarding alternative venting design and the Exception which cover installations such as the Chimney Adapter Kits which are listed for use with these furnaces The Chimney Adapter Kit is listed alternative venting system for these furnaces See the kit instructions for complete details See the Product Data Sheet for accessory list This furnace is permitted to be vented into a clay tile lined masonry chimney that is exposed to the outdoors below the roof line provided 1 Vent connector is Type B double wall and 2 This furnace is common vented with at least 1 draft hood equipped appliance and 3 The combined appliance input rating is less than the max imum capacity given in Table 7 and 4 The input rating of each space heating appliance is greater than the minimum input rating given in Table 8 for the local 99 Winter Design Temperature Chimneys having internal areas greater than 38 in 24516 mm require fur nace input ratings greater than the
73. ft of natural gas per hr for gas pressures of 0 5 psig 14 In W C or less and a pressure drop of 0 5 In W C based on a 0 60 specific gravity gas Ref Table 6 and ANSI Z223 2012 NFPA 54 2012 4 WARNING FIRE OR EXPLOSION HAZARD Failure to follow this warning could result in personal injury death and or property damage If local codes allow the use of a flexible gas appliance connector always use a new listed connector Do not use a connector which has previously served another gas appliance Black iron pipe shall be installed at the furnace gas control valve and extend a minimum of 2 in 51 mm outside the furnace P CAUTION FURNACE OVERHEAT HAZARD Failure to follow this caution may result in unit component damage Connect gas pipe to gas valve using a backup wrench to avoid damaging gas controls and burner misalignment An accessible manual equipment shutoff valve MUST be installed external to furnace casing and within 6 ft 1 8 M of furnace A 1 8 in 3 mm NPT plugged tapping accessible for test gauge connection MUST be installed immediately upstream of gas supply connection to furnace and downstream of manual equipment shutoff valve NOTE The furnace gas valve inlet pressure tap connection is suitable to use as test gauge connection providing test pressure DOES NOT exceed maximum 0 5 psig 14 In W C stated on gas control valve See Fig 42 Some installations require gas entry on rig
74. gas line from gas manifold 8 Remove the 5 screws that attach the burner assembly to the cell panel The gas valve and individual burners need not be removed from support assembly NOTE Be very careful when removing burner assembly to avoid breaking igniter See Fig 46 and 47 for correct igniter location 9 Using field provided 25 caliber rifle cleaning brush 36 in 914 mm long 1 4 in 6 mm diameter steel spring cable a variable speed reversible electric drill and vacuum cleaner clean cells as follows a Remove metal screw fitting from wire brush to allow insertion into cable b Insert the twisted wire end of brush into end of spring cable and crimp tight with crimping tool or crimp by striking with ball peen hammer TIGHTNESS IS VERY IMPORTANT NOTE The materials needed in item 9 can usually be purchased at local hardware stores 1 Attach variable speed reversible drill to the end of spring cable end opposite brush 2 Insert brush end of cable into the outlet opening of cell and slowly rotate with drill DO NOT force cable Gradually insert cable into upper pass of cell See Fig 48 3 Work cable in and out of cell 3 or 4 times to obtain sufficient cleaning DO NOT pull cable with great force Reverse drill and gradually work cable out 9 327 m 7 1 mm 5 16 7 9mm Nee L A05025 Fig 46 Igniter Position Side View
75. gether to get the total minimum required volume for the space Table 2 Minimum Space Volumes were determined by using the following equations from the National Fuel Gas Code ANSI Z223 1 2012 NFPA 54 2012 9 3 2 2 1 For other than fan assisted appliances such as a draft hood equipped water heater Volume 21ft8 other Other ACH 1000 Btu hr A04002 2 For fan assisted appliances such as this furnace 3 Volume JT5ft rn Fan ACH 1000 Btu hr A04003 If lother 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 Adjoining rooms can be considered part of a space if a There are no closeable doors between rooms b Combining spaces on same floor level Each opening shall have free area of at least 1 in 2 1 000 Btuh 2 000 mm2 kW of the total input rating of all gas appliances in the space but not less than 100 in 2 0 06 m2 One opening shall commence within 12 in 300 mm of the ceiling and the second opening shall commence within 12 in 300 mm of the floor The minimum dimension of air openings shall be at least 3 in 80 mm See Fig 8 c Combining space on different floor levels The volumes of spaces on different floor levels shall be considered as commun
76. hanger The furnace is factory shipped MAX80 F 27 C for use with natural gas This furnace is not approved for installation in mobile homes recreational vehicles or outdoors This furnace is designed for minimum continuous return air temperature of 60 F 16 C db or intermittent operation down to 55 F 13 C db such as when used with a night setback thermostat Return air temperature must not exceed 80 F 27 C FRONT db Failure to follow these return air temperature limits may affect reliability of heat exchangers motors and controls See Fig 3 For accessory installation details refer to the applicable MIN6O F 16 C instruction literature muti dh o mmy mmm RETURN AIR NOTE Remove all shipping brackets and materials before operating the furnace CODES AND STANDARDS A06745 Follow all national and local codes and standards in addition Fig 3 Return Air Temperature to these instructions The installation must comply with regulations of the serving gas supplier local building heating INTRODUCTION plumbing and other codes In absence of local codes the installation must comply with the national codes listed below and all authorities having jurisdiction In the United States follow all codes and standards for the following cru Nhir This 4 way multipoise Category I fan assisted furnace is CSA design certified A Category I fan assisted furnace is an appliance equipped
77. his can result in unregulated manifold pressure and result in excess overfire and heat exchanger failures 4 CAUTION FURNACE DAMAGE HAZARD Failure to follow this caution may result in reduced furnace life DO NOT redrill orifices Improper drilling burrs out of round holes etc can cause excessive burner noise and misdirection of burner flames This can result in flame impingement of heat exchangers causing failures See Fig 43 Furnace gas input rate on rating plate is for installations at altitudes up to 2000 ft 610 M Furnace input rate must be within 2 percent of furnace rating plate input 1 Determine the correct gas input rate The input rating for altitudes above 2 000 ft 610 M must be reduced by 4 percent for each 1 000 ft 305 M above sea level For installations below 2000 ft refer to the unit rating plate For installations above 2000 ft 610 M mul tiply the input on the rating plate by the derate multiplier in Table 10 for the correct input rate 2 Determine the correct orifice and manifold pressure adjust ment There are two different orifice and manifold adjust ment tables All models in all positions except Low NOx models in downflow or horizontal positions use Table 14 22 000 Btuh Burner Low NOx models in the downflow or horizontal positions must use Table 15 21 000 Btuh Burner See input listed on rating plate a Obtain average yearly gas heat value at installed alti
78. ht side of furnace as viewed in upflow See Fig 21 Install a sediment trap in riser leading to furnace as shown in Fig 22 Connect a capped nipple into lower end of tee Capped nipple should extend below level of furnace gas controls Place a ground joint union between furnace gas control valve and exterior manual equipment gas shutoff valve A 1 8 in 3 mm NPT plugged tapping accessible for test gauge connection MUST be installed immediately upstream of gas supply connection to furnace and downstream of manual equipment shutoff valve 19 58ST 58ST TOP VIEW OF BURNER AND MANIFOLD ASSEMBLY a N 90 Elbow U E To Gas l 7 5 Supply 2 51mm Nipple B j Street Elbow p j Gas Valve A08551 Fig 21 Burner and Manifold GAS SUPPLY MANUAL SHUTOFF VALVE uf REQUIRED ET TRAP UNION A02035 Fig 22 Typical Gas Pipe Arrangement Piping should be pressure and leak tested in accordance with NFGC local and national plumbing and gas codes before the furnace has been connected After all connections have been made 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
79. icating spaces if connected by one or more permanent openings in doors or floors having free area of at least 2 in 2 1 000 Btuh 4 400 mm_2 kW of total input rating of all gas appliances 2 An attic or crawlspace may be considered a space that freely communicates with the outdoors provided there are adequate permanent ventilation openings directly to out doors having free area of at least 1 in 2 4 000 Btuh of total input rating for all gas appliances in the space 3 In spaces that use the Indoor Combustion Air Method in filtration should be adequate to provide air for combus tion permanent ventilation and dilution of flue gases However in buildings with unusually tight construction additional air MUST be provided using the methods de scribed in the Outdoor Combustion Air Method section Unusually tight construction is defined as Construction with a Walls and ceilings exposed to the outdoors have a con tinuous sealed vapor barrier Openings are gasketed or sealed and b Doors and openable windows are weatherstripped and c Other openings are caulked or sealed These include joints around window and door frames between sole plates and floors between wall ceiling joints between wall panels at penetrations for plumbing electrical and gas lines etc Combination of Indoor and Outdoor Air 1 Indoor openings shall comply with the Indoor Combus tion Air Method below and 2 Outdoor openings shall be located as required in
80. in 127 mm or 6 in 152 mm vent connector outside furnace casing when 5 in 127 mm vent connector is required refer to Note 1 above Side outlet vent for upflow and downflow installations must use Type B vent immediately after exiting the furnace except when field approved Downflow Vent Guard Kit is used in the downflow position See Product Data Sheet for accessory list 4 Type B vent where required refer to the Note 1 above o 10 A 4 in 102 mm single wall 26 ga minimum vent must be used inside furnace casing and when the field approved Downflow Vent Guard Kit is used external to the furnace See Product Data Sheet for accessory list Accessory Downflow Vent Guard Kit required in downflow installations with lower vent configuration See Product Data Sheet for accessory list Chimney Adapter Kit may be required for exterior masonry chimney applications Refer to Chimney Adapter Kit for sizing and complete application details See Product Data Sheet for accessory list Secure vent connector to furnace elbow with 2 corrosion resistant sheet metal screws spaced approximately 180 apart Secure all other single wall vent connector joints with 3 corrosion resistant screws spaced approximately 120 apart Secure Type B vent connect ors per vent connector manufacturer s recommendations The total height of the vent and connector shall be at least seven ft 2 1 M for the 154 000 Btuh gas input rate mo
81. in casing and electrical box and into electrical box 7 Pull field power wires into electrical box 8 Remove cover from furnace J Box 9 Route field ground wire through holes in electrical box and casing and into furnace J Box 10 Reattach furnace J Box to furnace casing with screws re moved in Step 4 11 Secure field ground wire to J Box green ground screw 58ST 58ST Table 6 Electrical Data MAXIMUM MAXIMUM FURNACE SIZE IERD pa NOE ISE MAXIMUM UNIT WIRE FUSE OR MINIMUM SASE UNITAMPS AMPACITY LENGTHFT CKTBKR ann Maximum Minimum M AMPSt 045 08 024045 115 60 1 127 104 5 2 7 26 49 14 9 15 14 045 12 036045 115 60 1 127 104 7 2 9 79 37 11 2 15 14 070 08 024070 115 60 1 127 104 5 1 7 14 51 15 5 15 14 070 12 036070 115 60 1 127 104 7 2 9 72 38 11 5 15 14 070 16 048070 115 60 1 127 104 9 5 12 60 29 8 8 15 14 090 14 042090 115 60 1 127 104 8 6 11 39 32 9 7 15 14 090 16 048090 115 60 1 127 104 10 0 13 09 28 8 5 15 14 090 20 060090 115 60 1 127 104 14 1 18 2 31 9 4 20 12 110 12 036110 115 60 1 127 104 8 6 11 27 32 9 7 15 14 110 16 048110 115 60 1 127 104 10 2 13 34 27 8 2 15 14 110 22 066110 115 60 1 127 104 15 1 19 42 29 8 8 20 12 135 16 048135 115 60 1 127 104 10 5 13 63 27 8 2 15 14 135 22 066135 115 60 1 127 104 14 5 18 72 30 9 1 20 12 155 20 060155 115 60 1 127 104
82. input ratings of these furnaces See footnote at bottom of Table 8 and 5 The authority having jurisdiction approves If all of these conditions cannot be met an alternative venting design shall be used such as the listed chimney adapter kit with these furnaces which are listed for use with the kit a listed chimney lining system or a Type B common vent Inspections before the sale and at the time of installation will determine the acceptability of the chimney or the need for repair and or re lining Refer to the Fig 27 to perform a chimney inspection If the inspection of a previously used tile lined chimney a Shows signs of vent gas condensation the chimney should be relined in accordance with local codes and the authority having jurisdiction The chimney should be relined with a listed metal liner Type B vent or a listed chimney adapter kit shall be used to reduce con densation If a condensate drain is required by local code refer to the NFPA 54 ANSI Z223 1 2012 Sec tion 12 10 for additional information on condensate drains b Indicates the chimney exceeds the maximum permiss ible size in the tables the chimney should be rebuilt or relined to conform to the requirements of the equip ment being installed and the authority having jurisdic tion 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 list
83. ion Mn and to Fig 41 for furnace wiring information controls Wiring errors can cause improper and dangerous operation NOTE If the polarity is not correct the STATUS LED on the control will flash rapidly and prevent the furnace from heating 43 58ST The control system also requires an earth ground for proper operation of the control and flame sensing electrode The 24 v circuit contains an automotive type 3 amp fuse located on the control See Fig 25 Any shorts of the 24 v wiring during installation service or maintenance will cause this fuse to blow If fuse replacement is required use ONLY a 3 amp fuse The control LED will display status code 24 when fuse needs to be replaced Proper instrumentation is required to service electrical controls The control in this furnace is equipped with a Status Code LED Light Emitting Diode to aid in installation servicing and troubleshooting It can be viewed through the sight glass in blower access door The furnace control LED is either ON continuously rapid flashing or a code composed of 2 digits The first digit is the number of short flashes the second digit is the number of long flashes For an explanation of status codes refer to service label located on blower access door or Fig 45 and the troubleshooting guide which can be obtained from your distributor The furnace control will store 1 status code for 72 hrs See Fig 49 a brief Troubleshooting Guide 1
84. ion to all local codes and ordinances GENERAL This multipoise furnace is shipped in packaged configuration Some assembly and modifications are required when used in any of the four applications shown in Fig 4 This furnace must be installed so the electrical components are protected from water notbe installed directly on any combustible material other than wood flooring for upflow applications Downflow installations require use of a factory ap proved floor base or coil assembly when installed on combustible materials or wood flooring Refer to SAFETY CONSIDERATIONS 58ST 58ST AN THE BLOWER IS LOCATED BELOW THE Zo THE BLOWER IS LOCATED TO THE RIGHT OF THE BURNER SECTION AND AIR CONDITIONED AIR IS DISCHARGED TO THE LEFT LOCATED ABOVE THE BURNER SECTION AND CONDITIONED AIR IS DISCHARGED DOWNWARD AIRFLOW UPFLOW 5 Z 1 HORIZONTAL LEFT AIRFLOW DOWNFLOW THE BLOWER IS AIRFLOW BURNER SECTION AND CONDITIONED AIR IS DISCHARGED UPWARD THE BLOWER IS LOCATED TO THE LEFT OF THE BURNER SECTION AND CONDITIONED AIR IS DISCHARGED TO THE RIGHT A02097 Fig 4 Multipoise Orientations be located as close to the chimney or vent and attached to an air distribution system Refer to Air Ducts section be provided ample space for servicing and cleaning Always comply with minimum fire protection clear ances shown on the furnac
85. l blower access door if removed k Turn gas valve ON OFF switch to ON 34 CONNECTION DIAGRAM SICWER OFEDEUN B mei is T TO 115 VAC FIELD DISCONNECT SWITCH SCHEMATIC DIAGRAM JUMPER SELECT OR PCB cv NATURAL amp PROPANE GASES N L2 NEUTRAL 7Ay EQUIPMENT GROUND RED RED RED s RED WHEN USED v 120 SPARE 1 150 GRNIYEL NOTE B NOTE 5 i e 180 h FRS1 DSS BVSS 1 E n 1 TESTITWIN RED E OR ORE Um ORG I s HUM 3 WHEN USED EACH _BHTICLR S HSIR rum m BLU BLK z amp Fe Ler RED m WHT SEC 1 g a o HEN USED 3 PRS ES CD PRI 115 VAC el pep j frX wo I uu M NOTE 11 g SEC SEC2 e J BVSS FRS1 DSS WHEN USED Fut C NOTE 6 BHTICLR IDM PL1 6 COOL GRNIYEL ERES js MERO 5 R pus Ls2 SPARE 1 SPARE2 SPARE 3 w x gt gt WHEN USED HUM E Peta NOTE 11 FUSE OR CIRCUIT BREAKER amp 6 xj cO 1 DISCONNECT SWITCH WHEN REQ D LGPS PRS H LO NOTE 2 TEST TWIN PLIA WHEN USED Gv GVR CPU PL1 10 E PL1 5 NOTE 3 9 Quvosg LINY Q31NIid L BHT CLR BLOWE
86. llation requirements including local building codes the National Fuel Gas Code ANSI Z223 1 2012 NFPA 54 2012 NFGC Parts 12 and 13 local building codes and furnace and vent manufacturers instructions A WARNING 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 steps shall be followed for each appliance connected to the venting system being placed into operation while all other appliances connected to the venting system are not in operation 1 Seal any unused openings in venting system 2 Inspect the venting system for proper size and horizontal pitch as required in the National Fuel Gas Code ANSI Z223 1 NFPA 54 and these instructions Determine that there is no blockage or restriction leakage corrosion and other deficiencies which could cause an unsafe condition 3 As far as practical close all building doors and windows and all doors between the space in which the appliance s connected to the venting system are located and other spaces of the building 4 Close fireplace dampers 5 Turn on clothes dryers and any appliance not connected to the venting system Turn on any exhaust fans such as range hoods and bathroom exhausts so they are operating at maximum speed Do not operate a summer exhaust fan 6 Follow the lighting instructions Pla
87. local codes Refer to current edition of NFGC Installations must be made in accordance with all authorities having jurisdiction If possible the gas supply line should be a separate line running directly from meter to furnace NOTE In the state of Massachusetts 1 Gas supply connections MUST be performed by a li censed plumber or gas fitter 2 When flexible connectors are used the maximum length shall not exceed 36 inches 915 mm 3 When lever handle type manual equipment shutoff valves are used they shall be T handle valves 4 The use of copper tubing for gas piping is NOT approved by the state of Massachusetts Refer to Table 5 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 Table 5 Maximum Capacity of Pipe NOMINAL LENGTH OF PIPE FT M IRON PIPE INTERNAL SIZE NCAA 10 20 30 40 50 IN MM MM 30 60 94 124 152 1 2 12 7 ise 175 120 97 82 73 3 4 19 0 209 360 250 200 170 151 1 254 36 6 680 465 375 320 285 1 1 4 1 380 Gis 35 0 1400 950 770 660 580 1 1 2 1 610 Gan 46 9 2100 1460 1180 990 900 Cubic
88. low the wiring diagram very carefully NOTE If a power interruption occurs during a call for heat W the control will start a 90 sec blower only ON period two seconds after power is restored if the thermostat is still calling for gas heating The amber LED light will flash code 12 during the 90 sec period after which the LED will be ON continuous as long as no faults are detected After the 90 sec period the furnace will respond to the thermostat normally The blower door must be installed for power to be conducted through the blower door interlock switch ILK to the furnace control CPU transformer TRAN inducer motor IDM blower motor BLWM hot surface igniter HSI and gas valve GV 1 Heating See Fig 26 for thermostat connections The wall thermo stat calls for heat closing the R to W circuit The fur nace control performs a self check verifies the pressure switch contacts PRS are open and starts the inducer motor IDM a Inducer Prepurge Period As the inducer motor IDM comes up to speed the pressure switch contacts PRS close 24 VAC power is supplied for a field in stalled humidifier at the HUM terminal and the control begins a 15 sec prepurge period b Igniter Warm Up At the end of the prepurge period the Hot Surface igniter HSI is energized for a 17 second igniter warm up period c Trial for Ignition Sequence When the igniter warm up period is completed the main gas valve re lay contacts GVR close to energi
89. mpers on appliances common vented with this furnace ADDITIONAL VENTING REQUIREMENTS A 4 in 102 mm round vent elbow is supplied with the furnace A 5 in 127 mm or 6 in 152 mm vent connector may be required for some model furnaces A field supplied 4 in 102 mm to 5 in 127 mm or 4 in 102 mm to 6 in 152 mm sheet metal increaser fitting is required when 5 in 127 mm or 6 in 152 mm vent connector is used See Fig 28 40 Venting Orientation for approved vent configurations NOTE Vent connector length for connector sizing starts at furnace vent elbow The 4 in 102 mm vent elbow is shipped for upflow configuration and may be rotated for other positions Remove the 3 screws that secure vent elbow to furnace rotate furnace vent elbow to position desired reinstall screws The factory supplied vent elbow does NOT count as part of the number of vent connector elbows The vent connector can exit the cabinet of the furnace through one of 5 locations 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 apart NOTE An accessory flue extension is available to extend from the furnace elbow to outside the furnace casing See the Product Data Sheet for accessory list If flue extension is used fasten the flue extension to the vent elbow with at least two field supplied corrosio
90. n resistant sheet metal screws located 180 apart Fasten the vent connector to the flue extension with at least two field supplied corrosion resistant sheet metal screws located 180 apart 2 Vent the furnace with the appropriate connector as shown in Fig 28 40 A CAUTION CUT HAZARD Failure to follow this caution may result in personal injury Sheet metal parts may have sharp edges or burrs Use care and wear appropriate protective clothing safety glasses and gloves when handling parts and servicing furnaces 3 Determine the correct location of the knockout to be re moved 4 Use a hammer and screwdriver to strike a sharp blow between the tie points and work the slug back and forth until the slug breaks free A CAUTION BURN HAZARD Failure to follow this caution may cause personal injury Hot vent pipe is within reach of small children when installed in downflow position See the following instruction An accessory Vent Guard Kit is REQUIRED for downflow applications for use where the vent exits through the lower portion of the furnace casing Refer to the Vent Guard Kit Instructions for complete details See the Product Data Sheet for accessory list The horizontal portion of the venting system shall slope upwards not less than 1 4 in 6 mm per linear ft 21 mm m from the furnace to the vent and shall be rigidly supported every 5 ft 1 5 M or less with metal hangers or straps to ensure there is
91. nace 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 percent 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 vent elbow g Switch will auto reset when it cools h Re install vent connector NOTE Should switch remain open longer than 3 minutes furnace control board will lockout the furnace for 3 hrs To reset furnace control board turn thermostat below room temperature or from HEAT to OFF and turn 115v power OFF then back ON Check Pressure Switch This control proves operation of the draft inducer blower a Turn off 115 v power to furnace b Disconnect inducer motor lead wires from wire har ness c Turn on 115 v power to furnace d Set thermostat to call for heat and wait 1 minute When pressure switch is functioning properly hot sur face igniter should NOT glow and control diagnostic light flashes a status code 32 If hot surface igniter glows when inducer motor is disconnected shut down furnace immediately e Determine reason pressure switch did not function properly and correct condition f Turn off 115 v power to furnace g Reconnect inducer motor wires replace outer door and turn on 115 v p
92. ng tile or any other combustible material other than wood flooring In downflow installations factory access ory floor base MUST be used when installed on combust ible materials and wood flooring Special base is not re quired when this furnace is installed on manufacturer s Coil Assembly Part No CNPV CNRV CAR or CAP or when Coil Box Part No KCAKC is used See Fig 1 for clearance to combustible construction information NOTES 1 Two additional 7 8 in 22 mm diameter holes are located in the top plate 2 Minimum return air openings at furnace based on metal duct If flex duct is used see flex duct manufacturer s recommendations for equivalent diameters a For 800 CFM 16 in 406 mm round or 14 1 2 x 12 in 368 x 305 mm rectangle b For 1200 CFM 20 in 508 mm round or 14 1 2 x 19 1 2 in 368 x 495 mm rectangle c For 1600 CFM 22 in 559 mm round or 14 1 2 x 22 1 16 in 368 x 560mm rectangle 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 FURNACE SIZE A B C D VENT SHIP WT CABINET OUTLET TOP amp BOTTOM BOTTOM CONNECTION LB KG WIDTH WIDTH FLUE COLL
93. ory wires can be left connected but field thermo Switch for service purposes stat connections may need to be disconnected depending on their length and routing b Manually close blower access door switch 45 58ST NOTE If thermostat terminals are jumpered at the time blower access door switch is closed blower will run for 90 sec before beginning a heating or cooling cycle c Perform component self test as shown at the bottom of the SERVICE label located on the front of blower access door d Verify blower is rotating in the correct direction 16 If furnace is operating properly RELEASE BLOWER ACCESS DOOR SWITCH Remove any jumpers or re connect any disconnected thermostat leads Replace blower access door 17 Downflow or horizontal furnaces with vent pipe through furnace only a Install and connect short piece of vent pipe inside fur nace to existing vent b Connect vent connector to vent elbow 18 Reinstall casing door 19 Turn on gas supply and cycle furnace through one com plete heating and cooling cycle Verify the furnace temper ature rise as shown in Adjustments Section Adjust tem perature rise as shown in Adjustments Section If outdoor temperature is below 70 F 21 C turn off circuit breaker to outdoor unit before running furnace in the cooling cycle Turn outdoor circuit breaker on after completing cooling cycle CLEANING HEAT EXCHANGER The following steps should be performed by a qualified servi
94. ound or a listed grounded power cord where permitted by local code when installed in accordance with existing electrical codes Refer to the power cord manufacturer s ratings for proper wire gauge Do not use gas piping as an electrical ground P CAUTION FURNACE MAY NOT OPERATE Failure to follow this caution may result in intermittent furnace operation Furnace control must be grounded for proper operation or else control will lock out Control must remain grounded through green yellow wire routed to gas valve and manifold bracket screw 115 V WIRING Verify that the voltage frequency and phase correspond to that specified on unit rating plate Also check to be sure that service provided by utility is sufficient to handle load imposed by this equipment Refer to rating plate or Table 6 for equipment electrical specifications Make all electrical connections in accordance with National Electrical Code NEC ANSI NFPA 70 2011 and any local codes or ordinances that might apply 4 WARNING FIRE HAZARD Failure to follow this warning could result in personal injury death or property damage Do not connect aluminum wire between disconnect switch and furnace Use only copper wire Use a separate fused branch electrical circuit with a properly sized fuse or circuit breaker for this furnace See Table 6 for wire size and fuse specifications A readily accessible means of electrical disconnect must be located within
95. ow this warning could result in personal injury or death Do not bypass the draft safeguard switch as an unsafe condition could exist which must be corrected 24 1 If a vent common or dedicated becomes blocked the fur nace will be shut off by the draft safeguard switch located on the vent elbow 2 Do not connect this Category I furnace into a single wall dedicated or common vent The dedicated or common vent is considered to be the vertical portion of the vent system that terminates outdoors 3 Vent connectors serving Category I furnaces shall not be connected into any portion of a mechanical draft system operating under positive pressure 4 Do not vent this appliance with any solid fuel burning ap pliance 5 Category I furnaces must be vented vertically or nearly vertically unless equipped with a listed power venter 6 Do not vent this appliance into an unlined masonry chim ney Refer to Chimney Inspection Chart Fig 27 MASONRY CHIMNEY REQUIREMENTS NOTE These furnaces are CSA design certified for use in exterior clay tile lined masonry chimneys with a factory accessory Chimney Adapter Kit Refer to the furnace rating plate for correct kit usage The Chimney Adapter Kits are for use with ONLY furnaces having a Chimney Adapter Kit numbers marked on the furnace rating plate If a clay tile lined masonry chimney is being used and it is exposed to the outdoors below the roof line relining might be required Chimn
96. ower h Blower will run for 90 sec before beginning the call for heat again 58ST 1 Furnace should ignite normally Step 5 Checklist 37 1 2 Put away tools and instruments Clean up debris Verify that blower OFF DELAY time is selected as de sired Verify that blower and burner access doors are properly in stalled Cycle test furnace with room thermostat Check operation of accessories per manufacturer s instruc tions Review User s Guide with owner Attach literature packet to furnace 58ST Table 12 Gas Rate cu ft hr SECONDS FOR 1 SIZE OF TEST DIAL SECONDS FOR 1 SIZE OF TEST DIAL REVOLUTION TCuFt 2CuFt 5CuFt REVOLUTION iCuFt 2CuFt 5CuFt 10 360 720 1800 50 72 144 360 11 327 655 1636 51 71 141 355 12 300 600 1500 52 69 138 346 13 277 555 1385 53 68 136 340 14 257 514 1286 54 67 133 333 15 240 480 1200 55 65 131 327 16 225 450 1125 56 64 129 321 17 212 424 1059 57 63 126 316 18 200 400 1000 58 62 124 310 19 189 379 947 59 61 122 305 20 180 360 900 60 60 120 300 21 171 343 857 62 58 116 290 22 164 327 818 64 56 112 281 23 157 313 783 66 54 109 273 24 150 300 750 68 53 106 265 25 144 288 720 70 51 103 257 26 138 277 692 72 50 100 250 27 133 267 667 74 48 97 243 28 129 257 643 76 47 95 237 29 124 248 621
97. per 4 000 Btuh 550 mm2 kW for combined input of all gas appliances in the space per Fig 7 and Table 1 3 ONE OUTDOOR OPENING requires a 1 square inch of free area per 3 000 Btuh 734 mm2 kW for combined input of all gas appliances in the space per Table 1 and b Not less than the sum of the areas of all vent connect ors in the space The opening shall commence within 12 in 300 mm of the ceiling Appliances in the space shall have clearances of at least 1 in 25 mm from the sides and back and 6 in 150 mm from the front The opening shall directly communicate with the outdoors or shall communicate through a vertical or horizontal duct to the outdoors or spaces crawl or attic that freely communicate with the outdoors Indoor Combustion Air NFPA amp AGA Standard and Known Air Infiltration Rate Methods Indoor air is permitted for combustion ventilation and dilution if the Standard or Known Air Infiltration Method is used 4 WARNING CARBON MONOXIDE POISONING HAZARD Failure to follow this warning could result in death and or personal injury Many homes require air to be supplied from outdoors for furnace combustion ventilation and dilution of flue gases The furnace combustion air supply must be provided in accordance with this instruction manual Table 1 Minimum Free Area Required for Each Combustion Air Opening of Duct to Outdoors TWO HORIZONTAL
98. ps b through e until correct input is achieved Reinstall regulator seal cap on gas valve 5 Set temperature rise The furnace must operate within the temperature rise ranges specified on the furnace rating plate Do not exceed temperature rise range specified on unit rating plate Determine the temperature rise as fol lows NOTE Blower access door must be installed when taking temperature rise reading Leaving blower access door off will result in incorrect temperature measurements a Place thermometers in return and supply ducts as close to furnace as possible Be sure thermometers do not see radiant heat from heat exchangers Radiant heat affects temperature rise readings This practice is par ticularly important with straight run ducts 33 58ST 58ST b When thermometer readings stabilize subtract return air temperature from supply air temperature to determ ine air temperature rise NOTE Blower access door must be installed for proper temperature rise measurement NOTE If the temperature rise is outside this range first check e Gas input for heating operation Derate for altitude if applicable Return and supply ducts for excessive restrictions caus ing static pressures greater than 0 50 In W C A WARNING ELECTRICAL SHOCK HAZARD Failure to follow this warning could result in personal injury or death Disconnect 115 v electrical power and install lockout tag before changing speed tap c
99. rely Electrical Connection to J Box 21 Power Cord Installation in Furnace J Box 22 BX Cable Installation in Furnace J Box 22 24 V WINS is eter repe er ee Ron ere tuy aa 24 ACCESSOTIES s cos s ead ha re epe DOOR RO YN 24 General Venting Requirements 24 Masonry Chimney Requirements 25 Appliance Application Requirements 27 Sidewall Venting 27 START UP ADJUSTMENT AND SAFETY CHECK 32 General bedi dere hard ds HSE ORE S OO CBE ERE 32 58ST SAFETY CONSIDERATIONS 4 WARNING FIRE EXPLOSION ELECTRICAL SHOCK AND CARBON MONOXIDE POISONING HAZARD Failure to follow this warning could result in personal injury death or property damage Improper installation adjustment alteration service maintenance or use can cause carbon monoxide poisoning explosion fire electrical shock or other conditions which may cause personal injury or property damage Consult a qualified service agency local gas supplier or your distributor or branch for information or assistance The qualified service agency must use only factory authorized and listed kits or accessories when modifying this product A CAUTION FURNACE RELIABILITY HAZARD Failure to follow this caution may result in unit component damage Application of this furnace should be indoors with special attention given to vent sizing and
100. rnace h Remove regulator seal cap and turn regulator adjusting screw counterclockwise out to decrease input rate of clockwise in to increase input rate 1 Install regulator seal cap j Leave manometer or similar device connected and proceed to Step 4 NOTE DO NOT set manifold pressure less than 3 2 In W C or more than 3 8 In W C for natural gas at sea level If manifold pressure is outside this range change main burner orifices or refer Table 14 or 15 NOTE If orifice hole appears damaged or it is suspected to have been redrilled check orifice hole with a numbered drill bit of correct size Never redrill an orifice A burr free and squarely aligned orifice hole is essential for proper flame characteristics 4 Verify natural gas input rate by clocking meter NOTE Gas valve regulator adjustment cap must be in place for proper input to be clocked a Turn off all other gas appliances and pilots served by the meter b Run furnace for 3 minutes in heating operation c Measure time in sec for gas meter to complete 1 re volution and note reading The 2 or 5 cubic feet dial provides a more accurate measurement of gas flow d Refer to Table 12 for cubic ft of gas per hr e Multiply gas rate cu ft hr by heating value Btu 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 pressure to decrease input Repeat ste
101. s specified on the rating plate service agency Recommended operation is at the midpoint of the rise range To ensure long life and high efficiency clean accumulated dirt or slightly above Refer to SET TEMPERATURE RISE and grease from blower wheel and motor annually under START UP ADJUSTMENT and SAFETY The inducer and blower motors are pre lubricated and require no CHECK additional lubrication These motors can be identified by the absence of oil ports on each end of the motor The following steps should be performed by a qualified 14 Connect thermostat leads if previously disconnected 15 To check blower for proper rotation Clean blower motor and wheel as follows a Turn on electrical supply 3 For downflow or horizontal furnaces having vent pipes An WARN l NG a the furnace that pass in front of the blower access ELECTRICAL SHOCK HAZARD 1 Turn off electrical supply to furnace 2 Remove outer door Failure to follow this warning could result in personal a Disconnect vent connector from furnace vent elbow o injury or death b Disconnect and remove short piece of vent pipe from within furnace Blower access door switch opens 115 v power to furnace control No component operation can occur unless switch is closed Exercise caution to avoid electrical shock from 4 Remove 2 screws from blower access door and remove blower access door exposed electrical components when manually closing this 5 All fact
102. sight of the furnace NOTE Proper polarity must be maintained for 115 v wiring If polarity is incorrect control LED status indicator light will flash rapidly and furnace will NOT operate J BOX RELOCATION NOTE If factory location of J Box is acceptable go to next section ELECTRICAL CONNECTION TO J BOX NOTE On 14 in 356 mm wide casing models the J Box shall not be relocated to other side of furnace casing when the vent pipe is routed within the casing 1 Remove and save two screws holding J Box See Fig 23 NOTE The J Box cover need not be removed from the J Box in order to move the J Box Do NOT remove green ground screw inside J Box The ground screw is not threaded into the casing flange and can be lifted out of the clearance hole in casing while swinging the front edge of the J Box outboard of the casing 2 Cut wire tie on loop in furnace wires attached to J box 3 Move J Box to desired location 4 Fasten J Box to casing with two screws removed in Step 1 5 Route J Box wires within furnace away from sharp edges rotating parts and hot surfaces ELECTRICAL CONNECTION TO J BOX Field Supplied Electrical Box on Furnace J Box Bracket See Fig 24 1 Remove cover from furnace J Box 2 Attach electrical box to furnace J Box bracket with at least two field supplied screws through holes in electrical box into holes in bracket Use blunt nose screws that will not pierce wire insulation 3 Route furnace power
103. ss each heating and cooling season Clean as necessary 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 have furnace and burner serviced by a qualified service agency 5 Inspect the vent pipe vent system before each heating season for rust corrosion water leakage sagging pipes or broken fittings Have vent pipes vent system serviced by a qualified service agency 6 Inspect any accessories attached to the furnace such as a humidifier or electronic air cleaner Perform any service or maintenance to the accessories as recommended in the accessory instructions CLEANING AND OR REPLACING AIR FILTER The air filter arrangement will vary depending on the application The filter is exterior to the furnace casing NOTE If the filter has an airflow direction arrow the arrow must point towards the blower 44 6 Remove 2 screws holding blower assembly to blower deck and slide blower assembly out of furnace 7 Clean blower wheel and motor using a vacuum with soft CUT HAZARD brush attachment Blower wheel blades may be cleaned with a small paint or flux brush Do not remove or disturb Failure to follow this caution may result in personal injury bal ights clips om bl Se Glad alance weights clips on blower wheel blades Sheet metal parts ma
104. st be in place to operate furnace 6 Replace outer door Step 2 Start Up Procedures A WARNING FIRE AND EXPLOSION HAZARD Failure to follow this warning could result in personal injury death and or property damage Use a Never test for gas leaks with an open flame commercially available soap solution made specifically for the detection of leaks to check all connections A fire or explosion may result causing property damage personal injury or loss of life 1 Purge gas lines after all connections have been made 2 Check gas lines for leaks 4 WARNING ELECTRICAL SHOCK HAZARD Failure to follow this warning could result in personal injury or death Blower access door switch opens 115 v power to control No component operation can occur unless switch is closed Caution must be taken when manually closing this switch for service purposes 3 To Begin Component Self Test Remove blower access door Disconnect the thermostat R lead from the furnace control board Manually close the blower door switch Short jumper the COM 24v terminal on control to the TEST TWIN 3 16 inch quick connect terminal on control until LED goes out approximately 2 sec Gas valve and humidifier will not be turned on See Fig 25 NOTE The furnace control allows all components except the gas valve to be run for short period of time This feature helps diagnose a system problem in case of a component failure Component test
105. the page following these figures A03213 Fig 34 Horizontal Left Application Vent Elbow Left 30 MLL LM ALL un Se ta SEE NOTES 1 2 4 7 8 9 on the page SEE NOTES 1 2 4 5 7 8 9 on the page following these figures following these figures A03214 A03218 Fig 35 Horizontal Left Application Vent Elbow Right Fig 38 Horizontal Right Application Vent Elbow Right then Up SEE NOTES 1 2 4 5 7 8 9 on the page SEE NOTES 1 2 4 5 7 8 9 on the page following these figures following these figures A03215 A03219 Fig 36 Horizontal Left Application Vent Elbow Up Fig 39 Horizontal Right Application Vent Elbow Left then Up E J SEE NOTES 1 2 4 5 7 8 9 on the page SEE NOTES 1 2 4 5 7 8 9 following these figures A03216 A02068 Fig 37 Horizontal Left Application Vent Elbow Right Fig 40 Horizontal Right Application Vent Elbow Left NOTES FOR FIGURES 28 40 For common vent vent connector sizing and vent material use the NFGC 2 Immediately increase to 5
106. tion See furnace rating plate 7 When a furnace is installed so that supply ducts carry air circulated by the furnace to areas outside the space con taining the furnace the return air shall also be handled by duct s sealed to the furnace casing and terminating out side the space containing the furnace See Air Ducts sec tion 8 A gas fired furnace for installation in a residential garage must be installed as specified in the warning box in the Location section 9 The furnace may be used for construction heat provided that the furnace installation and operation complies with the first CAUTION in the LOCATION section of these in structions 10 These Multipoise Gas Fired Furnaces are CSA formerly A G A and C G A design certified for use with natural and propane gases see furnace rating plate and for install ation in alcoves attics basements closets utility rooms crawlspaces and garages The furnace is factory shipped for use with natural gas A CSA A G A and C G A lis ted accessory gas conversion kit is required to convert fur nace for use with propane gas 11 See Fig 1 for required clearances to combustible construc tion 12 Maintain a 1 in 25 mm clearance from combustible ma terials to supply air ductwork for a distance of 36 in 914 mm horizontally from the furnace See NFPA 90B or loc al code for further requirements 13 These furnaces SHALL NOT be installed directly on car peti
107. ttom Return Air Inlet 10 M PARIS Side Return AirInlet 10 Leveling Legs If Desired 11 E At sad CERTIFIED Bottom Return Air Inlet 12 a e LE cca de Suspended Furnace Support 12 Use of the AHRI Certified ru Mark indicates a manufacturer s participation in the program For Platform Furnace Support T E Re et ee ae aCe ere IM 12 S verification of certification for individual products e go to www ahridirectory org Roll Out Protection 12 ISO 9001 Bottom Return Air Inlet 12 ee Sie Retina IDI CS hap hiner van iea ese 12 NOTE Read the entire instruction manual before starting the General Requirements 13 installation Ductwork Acoustical Treatment 13 Portions of the text and tables are reprinted from NFPA 54 ANSI Supply Air Connections 13 Z223 1 2012 with permission of Nation Fire P rotection Association Quincy MA 02269 and American Gas Association Return Air Connections 19 Washington DC 20001 This reprinted material is not the 115 V WHINE ve RR RR RR RR enn 21 complete and official position of the NFPA or ANSI on the J box Relocation 21 referenced subject which is represented only by the standard in sisi otis alien Ra eels leuk ren p e eis its enti
108. ucer motor will run for the entire Low inlet gas pressure Inadequate flame carryover or rough ignition D component test The hot surface ignitor blower motor fan speed on AMBER LED boards Green Yellow wire MUST be connected to furnace sheet metal only blower motor heat speed and blower motor cool speed will be turned ON for 10 15 45 CONTROL CIRCUITRY LOCKOUT Auto reset after one hour lockout due to seconds each Gas Valve and Humidifier will not be turned on Gas valve relay stuck open Flame sense circuit failure Software check error Reset power to clear lockout Replace control if status code repeats V 327596 101 REV B J N P A04223 Fig 45 Service Label SERVICE AND MAINTENANCE PROCEDURES A CAUTION ENVIRONMENTAL HAZARD 4 WARNING FIRE EXPLOSION ELECTRICAL SHOCK HAZARD Failure to follow this warning could result in personal injury death and or property damage Failure to follow this caution may result in environmental pollution Remove and recycle all components or materials i e oil refrigerant et before unit final disposal Step 1 Introduction The ability to properly perform maintenance on this equipment requires certain knowledge mechanical GENERAL skills tools and equipment If you do not possess these These instructions are written as if the furnace is installed in an do T attempt to perform any maintenance on this upflow application An upflow furnace application is where the sq
109. upren t other than those procedures recommended in blower is located below the combustion and controls section of the User s Manual the furnace and conditioned air is discharged upward Since this furnace can be installed in any of the 4 positions shown in Fig 4 ViN WARNING you must revise your orientation to component location accordingly ELECTRICAL SHOCK FIRE OR EXPLOSION ELECTRICAL CONTROLS AND WIRING in A WARNING Failure to follow this warning could result in personal ELECTRICAL SHOCK HAZARD injury or death or property damage Failure to follow this warning could result in personal injury or death Before servicing disconnect all electrical power and install lockout tag to furnace Verify proper operation after servicing 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 electrical supply to the furnace Check accessories and cooling unit for additional electrical supplies that must be shut off during furnace servicing Lockout and tag switch with a suitable warning label Verify proper operation after servicing A CAUTION ELECTRICAL OPERATION HAZARD Failure to follow this caution may result in improper furnace operation The electrical ground and polarity for 115 v wiring must be Label all wires prior to disconnection when servicing properly maintained Refer to Fig 26 for field wiring informat
110. ure No K No Pressure No Pressure CO J 4 4 j 36 amp J or p A 3 5 1 9 1 7 NEL RE GENUNES SRUHE a NB WIE un rz 1000 2001 to 3000 610 to 914 58ST 3001 to 4000 914 to 1219 4001 to 5000 1219 to 1524 Orifice numbers 43 are factory installe 39 58ST ALTITUDE RANGE 7001 to 8000 8001 to 9000 9001 to 2743 Table 14 Orifice Size and Manifold Pressure In W C for Gas Input Rate Continued Tabulated data based on 22 000 btuh per burner derated 4 percent for each 1000 ft 305 M above sea level AVG GAS HEAT VALUE AT ALTITUDE BTU CU FT Orifice numbers 43 are factory installe PAVITY URA 0 62 Orifice Manifold a Manifold Orifice Manifold Orifice Manifold No Pressure No Pressure No Pressure No Pressure 4 35 zs z 2 8 nro prof ro cel o o o a o o fo gt N N 43 43 43 43 3 Co gt nro prof o N of N m A O N N 2 7 D co col 3 4 2 x 43 43 43 43 43 43 43 43 43 43 43 43 43 43 4 43 43 43 2 2 2 40 3 5 e N z Co w 2 6 4 2 43 r N E 4 35 32 e N 35 EE cups quee que qoe oer ser TU Table 15 Orifice Size and Manifold Pressure In W C for Gas Input Rate Tabulated data based on 21 000 btuh per burner derated 4 percent for each 1000 ft 305 M above sea level
111. urnaces The return air duct must be connected to return air opening bottom inlet as shown in Fig 19 DO NOT cut into casing sides left or right Side opening is permitted for only upflow and most horizontal furnaces See Fig 19 Bypass humidifier connections should be made at ductwork or coil casing sides exterior to furnace Upflow_and Horizontal Furnaces The return air duct must be connected to bottom sides left or right or a combination of bottom and side s of main furnace casing as shown in Fig 18 and 20 Bypass humidifier may be attached into unused return air side of the furnace casing See Fig 18 and 20 Not all horizontal furnaces are approved for side return air connections See Fig 20 GAS PIPING 4 WARNING FIRE OR EXPLOSION HAZARD Failure to follow this warning could result in personal injury death and or property damage Never purge a gas line into a combustion chamber Never test for gas leaks with an open flame Use a commercially available soap solution made specifically for the detection of leaks to check all connections A fire or explosion may result causing property damage personal injury or loss of life A WARNING FIRE OR EXPLOSION HAZARD Failure to follow this warning could result in personal injury death and or property damage Use proper length of pipe to avoid stress on gas control manifold and a gas leak Gas piping must be installed in accordance with national and
112. us code 33 continues to flash until blower shuts off 22 ABNORMAL FLAME PROVING SIGNAL Flame is proved while gas valve is de Flame rollout switch and BVSS require manual reset Check for Restricted vent icd d run until fault is cleared Check for Leaky gas valve Proper vent sizing Loose blower wheel Excessive wind SUC open das Valve Dirty filter or restricted duct system 23 PRESSURE SWITCH DID NOT OPEN Check for p i i i ji Obstructed pressure tubing Pressure switch stuck closed Defective blower motor or capacitor Defective switch or connections Inadequate combustion air supply Flame Roll out Switch open 34 IGNITION PROVING FAILURE Control will try three more times before lockout 14 occurs If flame signal lost during blower on delay period blower will come on for the selected blower off delay Check for Flame sensor must not be grounded Oxide buildup on flame sensor clean with fine steel wool 24 SECONDARY VOLTAGE FUSE IS OPEN Check for Short circuit in secondary voltage 24VAC wiring EE COMPONENT TEST To initiate the component test sequence shut OFF the room thermostat or disconnect the R F Prop er iame Sense iss imps 5 micrsam ps DO min 10 50 nominal m thermostat lead Briefly short the TEST TWIN terminal to the Com 24V terminal Status LED Defective Hot Surface Ignitor Control ground continuity eo will flash code and then turn ON the inducer motor The ind
113. utdown The use of the furnace while the structure is under construction is deemed to be intermittent operation per our installation instructions The air temperature rise is within the rated rise range on the furnace rating plate and the gas input rate has been set to the nameplate value The filters used to clean the circulating air during the construction process must be either changed or thoroughly cleaned prior to occupancy The furnace ductwork and filters are cleaned as necessary to remove drywall dust and construction debris from all HVAC system components after construction is completed Verify proper furnace operating conditions including ignition gas input rate air temperature rise and venting according to these installation instructions 18 IN 457 2 mm MINIMUM TO BURNERS A93044 Fig 5 Installation in a Garage 4 WARNING FIRE HAZARD Failure to follow this warning could result in personal injury death and or property damage Do not install the furnace 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 See Fig 6 FRONT A02054 Fig 6 Prohibit Installation on Back LOCATION RELATIVE TO COOLING EQUIPMENT The cooling coil must be installed parallel with or on the downstream side of the unit to avoid cond
114. when bottom return air is used To remove bottom closure panel perform the following 1 Tilt or raise furnace and remove 2 screws holding bottom filler panel See Fig 9 2 Rotate bottom filler panel downward to release holding tabs 3 Remove bottom closure panel 4 Reinstall bottom filler panel and screws HORIZONTAL INSTALLATION 4 WARNING FIRE EXPLOSION AND CARBON MONOXIDE POISONING HAZARD Failure to follow this warning could result in personal injury death or property damage Do not install the furnace 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 The furnace can be installed horizontally in an attic or crawl space on either the left hand LH or right hand RH side The furnace can be hung from floor joists rafters or trusses or installed on a non combustible platform blocks bricks or pad Suspended Furnace Support The furnace may be supported under each end with threaded rod angle iron or metal plumber s strap as shown See Fig 15 and 16 Secure angle iron to bottom of furnace as shown Heavy gauge sheet metal straps plumber s straps may be used to suspend the furnace from each bottom corner To prevent screws from pulling out use 2 8 x 3 4 in 19 mm screws into the side and 2 8 x 3 4 in 19 mm screws in the bottom of the furnace casing for each strap
115. wires through holes in electrical box and J Box bracket and make field wire connections in electrical box Use best practices NEC in U S for wire bushings strain relief etc 4 Route and secure field ground wire to green ground screw on J Box bracket 5 Connect line voltage leads as shown in Fig 26 6 Reinstall cover to J Box Do not pinch wires between cover and bracket Electrical Box on Furnace Casing Side See Fig 24 4 WARNING FIRE OR ELECTRICAL SHOCK HAZARD Failure to follow this warning could result in personal injury death or property damage If field supplied manual disconnect switch is to be mounted on furnace casing side select a location where a drill or fastener cannot damage electrical or gas components 21 1 Select and remove a hole knockout in the casing where the electrical box is to be installed NOTE Check that duct on side of furnace will not interfere with installed electrical box 2 Remove the desired electrical box hole knockout and posi tion the hole in the electrical box over the hole in the fur nace casing 3 Fasten the electrical box to casing by driving two field supplied screws from inside electrical box into casing steel 4 Remove and save two screws holding J Box See Fig 23 5 Pull furnace power wires out of 1 2 in 12 mm diameter hole in J Box Do not loosen wires from strain relief wire tie on outside of J Box 6 Route furnace power wires through holes
116. with an integral mechanical means to either draw or force products of combustion through the combustion Step 1 Safety National Fuel Gas Code NFGC NFPA 54 2012 AN SI Z223 1 2012 and the Installation Standards Warm Air Heating and Air Conditioning Systems ANSI NFPA 90B Step 2 General Installation Current edition of the NFGC and the NFPA 90B For copies contact the National Fire Protection Association Inc Batterymarch Park Quincy MA 02269 www NFPA org or for only the NFGC contact the American Gas Association 400 N Capitol Street N W Washington DC 20001 www AGA org 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 e Air Conditioning Contractors Association ACCA Manual D Sheet Metal and Air Conditioning Contract ors National Association SMACNA or American Society of Heating Refrigeration and Air Condition ing Engineers ASHRAE 2001 Fundamentals Hand book Chapter 34 or 2000 HVAC Systems and Equip ment 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 NFGC NFPA 54 ANSI Z223 1 2012 chapters 5 6 7 and 8 and National Plumbing Codes Step 7 Electrical Connections National Electrical Code NEC ANSI N
117. y have sharp edges or burrs Use care and wear appropriate protective clothing safety glasses and gloves when handling parts and servicing furnaces 8 Vacuum any loose dust from blower housing wheel and motor 9 If a greasy residue is present on blower wheel remove wheel from the blower housing and wash it with an appro Media cabinet filter procedures priate degreaser To remove wheel NOTE Media cabinet or 3 4 in 19 mm filter rack are accessories and are not included from the factory NOTE Before disassembly mark blower motor and blower housing so motor and each arm is positioned at the same location 1 Turn off electrical supply to furnace before removing filter during reassembly access door a Disconnect capacitor wires and ground wire attached 2 Remove filter cabinet door to blower housing She ili oat ot camet b Remove screws securing cutoff plate and remove 4 If equipped with permanent washable 3 4 in 19 mm filter cutoff plate from housing a clean filter by spraying cold tap water through filter in opposite c Loosen set screw holding blower wheel on motor shaft co direction of airflow Rinse filter and let dry Oiling or coating of 1604 20 in Ib when reassembling D the filter is not ded See Table 13 for size inf tion VEA MADERA ANE AE VRAC diede d Remove bolts holding motor to blower housing and slide motor out of wheel 40 10 in Ib when reas sembling 5 If equipp
118. ze the gas valve GV the gas valve opens The gas valve GV permits gas flow to the burners where it is ignited by the HSI Five seconds after the GVR closes a 2 second flame prov ing period begins The HSI igniter will remain ener 47 58ST 58ST gized until the flame is sensed or until the 2 second flame proving period begins d Flame Proving When the burner flame is proved at the flame proving sensor electrode FSE the furnace control CPU begins the blower ON delay period and continues to hold the gas valve GV open If the burner flame is not proved within two seconds the control CPU will close the gas valve GV and the control CPU will repeat the ignition sequence for up to three more Trials For Ignition before going to Ignition Lockout Lockout will be reset automatically after three hours or by momentarily interrupting 115 vac power to the furnace or by interrupting 24 vac power at SEC1 or SEC2 to the furnace control CPU not at W G R etc If flame is proved when flame should not be present the furnace control CPU will lock out of Gas Heating mode and operate the inducer motor IDM until flame is no longer proved e Blower On Delay If the burner flame is proven the blower motor is energized on HEAT speed 25 sec after the gas valve GV is energized Simultaneously the electronic air cleaner terminal EAC 1 is energized and remains energized as long as the blower motor BLWM is energized f Blower Off Delay Wh

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