Carrier 320720---751 THRU ---761 User's Manual
Contents
1. PRIMARY HEAT BURNER EXCHANGER ENCLOSURE BEHIND CELL INLET PANEL ir aa i COMBUSTION GAS VALVE AIR INTAKE lee CONNECTION i o CAP AND AUXILIARY zi CLAMP JUNCTION BOX UNUSED VENT OUTLET 74 CONN alo lt INDUCER INDUCER MOTOR VOER MIRE N C sgy MOTOR CONNECTOR MM at VENT CONDENSING OUTLET HEAT A EXCHANGER S BEHIND CELL INLET PANEL amp CONTROL INDUCER l CENTER HOUSING h BLOWER DRAINTUBE BLOWER EN PANEL CONDENSATE SAFETY TRAP 18K 3x A A INTERLOCK gt r SWITCH AIR FILTER MOTOR AND AND RETAINER BLOWER ASSEMBLY A93407 Fig 2 Variable Speed Model in Upflow Orientation NOTE Visually check location of main limit and shield to ensure shield is not touching primary cells If shield is touching short cycling of limit will occur 8 Reinstall condensing heat exchanger assembly to primary cell inlet panel Reinstall Inducer Assembly 1 Inspect connector box gasket where inducer housing will mate NOTE If gasket is damaged in any way it must be repaired To repair apply a small bead of G E RTV 162 G E 6702 or Dow Corning RTV 738 to damaged gasket area Apply sealant releasing agent such as PAM cooking spray or equivalent must not contain corn nor canola oil halogenated hydrocarbons or aromatic content to prevent inadequate sealing to inducer housing mating surface 2 Attach inducer assembly to cell panel by alignin2. burner box inducer assembly J box if applicable and control center if applicable through front of furnace Reinstall condensate trap where previously installed fur nace casing or blower shelf 10 Reconnect condensate trap drain tubes See tubing dia A W ARNIN G gram on furnace for proper tube location 11 Connect field drain to condensate trap NOTE Ensure tubes are not kinked or pinched as this will FIRE AND UNIT OPERATION HAZARD z affect operation Failure to follow this warning could result in personal injury death and or property damage 12 Connect vent pipe by inserting pipe into coupling elasto meric rubber coupling and then fully into inducer hous DO NOT cut or tear foil face insulation If cuts or tears ing outlet occur repair insulation with foil tape 13 Connect combustion air intake pipe to intake housing and install screw to secure Do not use RTV unless previously 2 Secure whole cell panel assembly to blower shelf by in ised stalling two screws through blower housing four screws 14 Install top filler panel on 120 and 140 sizes and two screws next to blower 15 Install gas supply pipe to gas valve using backup wrench housing NOTE Use propane gas resistant pipe dope to prevent gas leaks DO NOT use Teflon tape 4 WARNING EXPLOSION AND FIRE HAZARD Failure to follow this warning could result in personal injury death and or property damage For upflow or downflow app
3. NVE PG9MAB 353AAV PG9MXA PG9UAA SANKA 490AAV 24040 24040 040 08 040 08 24040 320720 751 36040 36040 PE ss ci 040 12 040 12 SS 7 36040 24060 24060 060 08 060 08 24060 320720 753 36060 36060 36060 42060 42060 060 12 060 12 o60 12 o60 14 060 14 36060 48060 48060 060 16 060 16 48060 SaaS 36080 36080 36080 36080 Aa ES 080 12 080 12 080 12 P 36080 IODA TARTS 48080 48080 48080 48080 080 16 080 16 080 16 48080 320720 755 7 gt am ox ame EAN mo Baise e Series A 100 48100 48100 48100 100 16 100 16 100 16 48100 320720 756 60100 60100 a 60100 60100 60100 100 20 100 20 100 20 100 20 100 20 60100 60120 120 20 60120 320720 757 50140 60120 60120 60120 60120 jao229 120 20 120 20 120 20 120 20 60140 320720 758 ae 25 zs 42040 42040 25 040 14 040 14 z 42080 080514 Series B Series 320720 760 60080 60080 60080 42080 080 20 080 20 5 080 14 110and 60080 and later pe 60080 080 20 later 080 20 Pate aK 36080 36080 36080 36080 A 080 12 o80 12 080 12 oe 36080 Pasian 48080 48080 48080 48080 080 16 080 16 080 16 48080 INSTALLATION 16 If control center was removed from furnace casing secure control center and J box to manifold for removal pur poses only Disconnect field drain connection from condensate trap Disconnect drain and relief port tube from condensate trap Remove condensate trap from furnace casing or blower shelf Remove whole c
4. tall condensing gas furnaces See Table 1 for kit usage NOTE A releasing agent such as PAM cooking spray or equivalent must not contain corn or canola oil halogenated hydrocarbons nor aromatic contents to prevent inadequate seal and RTV sealant G E 162 G E 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 o0z tubes DESCRIPTION AND USAGE Use this Primary Cell Inlet Panel Kit when replacement of a factory installed primary cell inlet panel is required This Primary Cell Inlet Panel Kit contains the following items Primary Cell Inlet Panel 1 Burner Box Gasket 1 Cell Mounting Screw No 8D X 3 8 in 10 mm 25 max Installation Instructions 1 320720 Table 1 Kit Usage Remove Whole Cell Panel Assembly See Fig 1 and Fig 2 for furnace component locations See Fig 3 for expanded view of heating system components NOTE Actual component locations may vary depending on model and series 1 lie gh ra reat ed 10 11 12 13 14 15 Turn off gas and electrical supplies to furnace Remove main furnace door Remove blower access panel Disconnect field power supply wires from J box Remove two screws securing J box Remove two screws securing top filler panel and rotate panel upwards to remove or allow the
5. 320720 751 thru 761 Primary Cell Inlet Panel Kit Installation Instructions NOTE Read the entire instruction manual before starting the installation SAFETY CONSIDERATIONS 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 In Canada refer to the current editions of the National Standards of Canada CAN CSA B149 1 and 2 Natural Gas and Propane Installation Codes and Canadian Electrical Code CSA C22 1 Recognize safety information This is the safety alert symbol A When you see this symbol on the unit and in instructions or manuals be alert to the potential for personal injury Under
6. R A01026 Fig 1 Two Stage Two Speed and Fixed Capacity Model s in Upflow Orientation Remove Inducer Assembly 1 If not previously disconnected disconnect inducer motor wire connector at quick connect 2 If not previously disconnected disconnect pressure switch wires 3 Remove collector box pressure switch tube from pressure switch 4 Remove four screws attaching inducer housing to cell pan el NOTE Inducer housing inducer motor and pressure switch es should be removed as 1 assembly Install Primary Cell Inlet Panel 1 Remove four screws attaching condensing heat exchanger assembly to primary cell inlet panel 2 Remove screws attaching primary cells to primary cell in let panel 3 Remove main limit and shield from primary cell inlet pan el Note orientation of shield and direction of main limit for reassembly 4 Remove primary cell inlet panel by lifting panel off con densing heat exchanger collector box 5 Slide new inlet cell panel over condensing heat exchanger collector box 6 Attach primary cell inlet panel to primary cells by doing the following a Center primary cell inlet panel over primary cell open ings b Use an awl to align holes and start ALL screws provided in kit in primary cells c After all screws are started check position of fiberglass gasket and tighten screws in cells 7 Install main limit and shield in primary cell inlet panel
7. ell panel assembly with heat exchanger burner box inducer assembly J box if applicable and control center if applicable attached through front of fur nace A CAUTION PERSONAL INJURY HAZARD Failure to follow this caution may result in personal injury Whole cell panel assembly is heavy Get help to remove and lift assembly Remove Burner Box Assembly 1 4 5 If not previously disconnected disconnect wires or con nectors to overtemperature switch gas valve igniter and flame sensor Remove pressure switch tube from intake housing Remove two screws attaching intake housing to burner box and rotate intake housing away from burner box for removal Disconnect pressure tubing from gas valve Remove screws attaching burner box to cell panel NOTE Burner box cover manifold gas valve and burner assembly should be removed as one assembly COMBUSTION AIR INTAKE O i CONNECTION WU BURNER GAS VALVE ose ENCLOSURE JUNCTION BOX a k NT PRIMARY HEAT P EXCHANGER Tos BEHIND CELL VENT OUTLET ee q INLET PANEL CONDENSING a CAP AND HEAT CLAMP EXCHANGER UNUSED BEHIND CELL DRAIN INLET PANEL CONNECTION PRESSURE SWITCHES VENT OUTLET INDUCER MOTOR TN CONTROL CENTER CONDENSATE BLOWER TRAP ACCESS PANEL MOTOR AND SAFETY BLOWER INTERLOCK ASSEMBLY SWITCH AIR FILTER AND RETAINE
8. g four screws through inducer housing spacers Tighten screws to secure 3 Attach collector box pressure switch tube to pressure switch See tubing diagram of furnace for proper location attachment 4 If control was removed from furnace with whole cell panel assembly reconnect inducer motor wire connector at quick connect 5 If control was removed from furnace with whole cell panel assembly reconnect pressure switch wires Refer to wiring diagram on furnace for proper attachment Reinstall Burner Enclosure Assembly 1 Position burner enclosure gasket between the burner box and inlet cell panel and secure burner box on inlet cell panel using screws removed earlier 2 Connect pressure tube to gas valve 3 Inspect gasket then install intake housing on burner en closure 320720 COLD SPOT BAFFLE COUPLING BOX PRIMARY PRIMARY CELL MAIN LIMIT SHIELD MAIN LIMIT BURNER ENCLOSURE N GASKET BLOWER SHELF CONDENSING HEAT EXCHANGER CELL REAR PANEL CONDENSING HEAT EXCHANGER ASSEMBLY PRIMARY CELL OUTLET PANEL gt PRESSURE SWITCH NOTE ACTUAL COMPONENT LOCATION MAY VARY ENCLOSURE DEPENDING ON MODEL amp SERIES AND GAS VAVLE A05128 Fig 3 Expanded View of Heat System Components in Upflow Orientation NOTE If gasket is damaged in any way it must be repaired To NOTE When reinstalling condensing heat exchanger assembly repair a
9. heat exchanger to be removed from front of furnace Disconnect combustion air intake pipe from intake hous ing and move pipe out of furnace casing Disconnect gas supply pipe from gas valve using backup wrench Disconnect vent pipe from inducer housing by loosening coupling clamp on inducer outlet If coupling has 2 clamps loosen clamp on vent pipe side Move pipe out of furnace casing If control center is located in burner compartment of fur nace remove blower motor leads transformer wires door switch wires and auxiliary limit switch wires if present from control center and pull wires through blower shelf If control center is located in blower compartment of fur nace disconnect wires from flame sensor hot surface ig niter overtemperature switch gas valve pressure switch es inducer motor limit switch and J box then pull wires through blower shelf Remove two screws securing blower to blower shelf four screws on 120 and 140 sizes Remove two screws next to blower mounting screws that secure blower shelf to cell panel Remove three screws from each side of cell panel If control center is located in burner compartment of fur nace remove control center by removing screw and press ing tabs inward 17 18 19 20 UNIT 340AAV 340MAV 352AAV 355AAV Sas ears sie wn egy 350AAV sasmav a5ipas SO2MAV sccmay 355BAV 58MEB 58MSA 58MTA 58UVB semvp PGIMAA NO 350MAV 353BAV 355CAV ae eae
10. lications gas valve knob or switch must be facing forward or tipped to the UP position 16 Connect field power supply to J box 17 Install blower access panel 18 Turn on gas and electrical supplies to furnace 19 Check for gas leaks A WARNING EXPLOSION AND FIRE 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 20 Check furnace operation through two cycles 21 Check for condensate leaks 22 Replace furnace door 320720 Copyright 2010 CAC BDP 7310 W Morris St e Indianapolis IN 46231 Printed in U S A Edition Date 09 10 Catalog No IIK320720 005 SE I SE A A a a a a SE a aE EE Manufacturer reserves the right to change at any time specifications and designs without notice and without obligations Replaces IIK320720 004 6
11. pply a small bead of G E RTV 162 G E 6702 or the lower flange of the condensing heat exchanger cell rear panel Dow Corning RTV 738 to damaged gasket area Apply sealant must engage on the T tabs in rear blower shelf See Fig 3 releasing agent such as PAM cooking spray or equivalent must 3 Install three screws to each side of inlet cell panel and into not contain corn nor canola oil halogenated hydrocarbons or cell panel supports aromatic content to prevent inadequate sealing to burner 4 If previously removed reinstall control center in casing enclosure mating surface flange 4 Connect pressure tube to intake housing 5 If control center is located in burner compartment or fur Reinstall Whole Cell Panel Assembl nace reinstall blower motor leads transformer wires door switch wires and auxiliary limit switch wires if present a C AUTION through blower shelf and grommet 6 If control is located in blower compartment of furnace PERSONAL INJURY HAZARD pull wires to flame sensor hot surface igniter overtemper ature switch gas valve pressure switch es inducer motor Failure to follow this caution may result in personal injury limit switch and J box through blower shelf Whole cell panel assembly is heavy Get help to lift and 7 Install J box Install 8 Reattach wires to control center or components See wir ing diagram on furnace for proper attachment 1 Install whole cell panel assembly with heat exchanger 9
12. stand the signal words DANGER 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 A WARNING FIRE EXPLOSION AND ELECTRICAL SHOCK HAZARD Failure to follow this warning could result in personal injury death and or property damage Before installing or servicing system always turn off main electrical and gas supplies to unit and tag with appropriate lockout There may be more than one disconnect switch 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 7 Nae 07 V OO UNIT DAMAGE HAZARD Failure to follow this caution may result in improper and dangerous operation Label all wires prior to disconnection when servicing controls INTRODUCTION This instruction covers installation of the Primary Cell Inlet Panel Kit Part No 320720 751 753 754 755 756 757 758 760 and 761 in 40 in 1016 mm
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