Lennox G32Q3-100 Installation Instructions Manual Download | Manualshive

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Summary of Contents for G32Q3-100

Page 1: ...wer Operation 22 Gas Pressure Adjustment 22 High Altitude Information 23 Other Unit Adjustments 23 Service 24 Repair Parts 27 Troubleshooting 27 Start Up Performance Checklist 32 AWARNING Do not store...

Page 2: ..._R FIL I1ERK T Either Side O_onal 4 I02 E IP lira A_ I I t AIR FLOW Return Air Knockout Bottom FRONT VIEW A B C D E F G H Model No in I mm in mm in mm In mm In mm in mm in mm in mm G32Q3 75 16 1 4 41...

Page 3: ...ANGER ASSEMBLY CABINET RESSURE FLAME SIGHT p swrrcH GLASS BURNER BOX HIGH HEAT COVER 3NO STAGE PRESSURE GAS VALVE AND SWITCH MANIFOLD 75 only BURNER ACCESS PANEL BLOWER ACCESS DOOR TWO SPEED COMBUSTIO...

Page 4: ...by vehicles When e furnace is installed in a public garage hangar or other building that has a hazardous atmosphere the fumace mustbe installed ac cording to recommended good practice requirements and...

Page 5: ...3 Thread forming screws Shipping Damage Check equipment for shipping damage If you find any damage immediately contact the last carrier I Insta iatton Setttng Equipment Select a location that allows...

Page 6: ...ter clips for instal lation of a field provided internally installed filter See figure 4 Bottom Return Air Applications 1 Remove blower access panel 2 Install filter clips provided with unit by slippi...

Page 7: ...ot When retum air is drawn from a room a negative pressure is created in the room If a gas appliance is operating in a room with negative pres sure the flueproducts can be pulled back down the vent pi...

Page 8: ...h the two 2 inch diame ter 90 elbows end the 27 inch pipe in the kit For 75 kBtuh units connections are provided for 2 inch diameter venting which should satisfy most venting re quirements No transiti...

Page 9: ...plication of cement Hammer blows should not be used when inse_ng pipe 8 After assembly wipe excess cement from pipe at end of fitting socket A properlymade jointwillshowa bead around itsentire perimet...

Page 10: ...each appliance remaining connected to the common venting system properly vents when tested as indicated in step 3 return doors windows exhaust fans fireplace dampers and any other gas burning applianc...

Page 11: ...igure 10 IMAX Inches ram 3 x 2 70 x 51 OR 2 x 1 2 51 x 38 PVC REDUCER 1 2 13 FOAM INSULATION IN UNCONDrrlONED 12 305 ABOVE SPACE AVERAGE SNOW ACCUMULATION 3 76 OR UNCONDmONED 2 5t PVC ATTIC SPACE PROV...

Page 12: ...y local building codes In the absence of local codes refer to the current Na tional Fuel Gas Code ANSI Z223 1 in USA and cur rent standard CAN CGA B149 1 of the Natural Gas Installation Instructions i...

Page 13: ...lation may use a group of up to four termination kits WTK assembled together horizontally as shown in figure 17 Front View _ _ _ l EXHAUST VENT 1 2 13 Foam Insulation in Unconditioned _ace F Inches mm...

Page 14: ...the unit 2 Connect 1 2 inch 13 mm plastic pipe plug pro vided in the unused end of the condensate trap Install plug so that it is sealed water tight yet able to be removed Do not permanently seal the...

Page 15: ...izes for typi cal applications NOTE Use two wrenches when connecting gas pip ing to avoid transferring torque to the manifold 3 The gas piping must not run in or through air ducts clothes chutes gas v...

Page 16: ...04 67 96 63 71 58 05 55 22 52 38 3068 11000 7700 6250 5300 4750 4300 3900 3700 3450 3250 77 927 31148 218 03 17698 150 07 134 50 121 76 110 43 104 77 97 69 92 03 4 026 23000 15800 12800 10900 9700 88...

Page 17: ...or the widng entry hole in the cabinet A snaphole plug is providedto seal the unused wire entry hole INTERIOR MAKE UP BOX INSTALLATION __ _ J69 FIGURE 26 EXTERIOR MAKE UP BOX INSTALLATION J69 Shown wi...

Page 18: ...PARK ACB LOW ACC TX HOT HTG ACC NEUTRALS 24VAC HOT 24VAC RTN FLAME SENSE TERMINAL DESIGNATION_ Blower Coollr_ Bleed LineVolt Blower Heatina SPeed Line Volt AJtemateBlower SPeeds Dead ContinuousLowSpe...

Page 19: ...G32Q TWO STAGE CONTROL BOARD 0 MODE OF OPERATION JUMPER Factory set at TWO STAGE FIGURE 31 TYPICAL G32Q FIELD WIRING DIAGRAM W2 TIMED ON DELAY JUMPER Factoryset at 8 minutes FIGURE 32 Page 19...

Page 20: ...F20M _C 4 5 E _ 4 I F IJ_D O Ll _b_m II I I I I it i I i i IIilll I _ TYPICAL G32Q SCHEMATIC WIRING DIAGRAM o HION NEAT srj Ti_ IVI SlO Ul_ LIMIT SI _ c_urr l_ AiR Lml_ W_ r n 2 ill FIGURE 33 Page 20...

Page 21: ...ou do not smell gas go to next step HONEYWELL VR8205 SERIES GAS VALVE HIGH FIRE ADJUSTING SCREW under cap MANIFOLD PRESSURE TAP LOW FIRE ADJUSTING SCREW under cap INLET PRESSURE TAP GAS VALVE SHOWN IN...

Page 22: ...two stage control switchesthe furnace to secondstage operation high heat In second stage operation the following oc cur combustionair inducer motor is energized at highspeed indoorblowermotoris energ...

Page 23: ...ld be stable and should not lift from burner Natural gas shouldbum blue 5 After allowing unit to stabilize for 5 minutes record manifold pressure and compare to value given in table 6 NOTE Shut unit o...

Page 24: ...hermostatdemand to the furnace and automaticallyreset the controlto relightthe furnace Bumer Flame Start burnerand allow to operate for a few minutesto es tablishnormalburningconditions Check burner f...

Page 25: ...f bushing from blower deck and pull bushing and wires into the blower section 18 Remove the limit switch and the pressure switch es from the vestibule panel 19 Remove two screws from the front cabinet...

Page 26: ...using a 1 4 inch nut driver to remove two screws from each bracket 13 Clean burner by running a vacuum with a soft brush attachment over face of burners Use burner brush to clean inside of burners Vis...

Page 27: ...TION Power on Normal operation Also siqnaleddudnq coolin q and continuousfan Normal operation signaledwhen heating demand initiatedat thermostat Primary or secondarylimit switch open Limitmust close w...

Page 28: ...ITCHCLOSED 75kBtuhmodelonly YES_ OR PRESSORE I SWffCH CLOSED _ YES PREPURGE I 15 SECONDS CONTINUED ON NEXT PAGE GAS VALVE OFF COMBUSTION AIR INDUCER OFF INDOOR BLOWER DELAY OFF LED 1 ON LED 2 ON RESET...

Page 29: ...TERNATE FLASH SINGLE STAGE MODE J YES HIGH HEAT ONLY j CONTROL CHECKS RETRY GAS VALVE OPEN FOR IGNmON COUNT HIGH AND LOW HEAT ignitor remains energized HAVE FOUR E TRIES BEEN COMPLETED GAS VALVE J DE...

Page 30: ...ROL CHECKS FLAME PRESENCE CLOSED I PRIMARY LIMIT CLOSED PRESSURE SWITCHES r CONTINUOUSLY CLOSED ROLl OUT SWITCH dudng heating cycle SEE PREVIOUS SEQUENCES FOR FAILURE MODES DEMAND FOR HEAT SATISFIED T...

Page 31: ...AT LED IS VOLTAGE _ LOW VOLTAGE SIGNAL AT LET HOLDS ABOVE 75 VOLTS I_1 UNT L VOLTAGE R SES ABOVE 75 VOLTS CHECK FOR MAIN BURNER FLAME SENSE N_I1 IS MAIN BURNER FLAME OFF I T LED SLOW FLASH RATE REMAI...

Page 32: ...ed during continuousfan mode I INDOOR BLOWER SWITCHES TO ACB LOW Jr SPEED ACC TERM REMAINS ENERGIZED Job Name Job Number Date Job Location City State Province Installer City State Province Unit Model...

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