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Page 7

PARTS IDENTIFICATION

BLOWER ASSEMBLY

INTERNAL FLUE

PIPE ASSEMBLY

FLUE CHASE

GASKET

DOOR INTERLOCK SWITCH

HEAT EXCHANGER

COMBUSTION AIR INDUCER

PRESSURE SWITCHES

GAS VALVE

BURNER BOX ASSEMBLY

INNER BLOWER ACCESS PANEL

ACCESS PANEL

CONTROL BOX

(Includes two-stage integrated control,

transformer and circuit breaker)

ROLLOUT SWITCH

PRIMARY LIMIT LOCATION

SECONDARY LIMIT

FIGURE 1

Содержание SL280DF070V36A

Страница 1: ...FV model units are equipped with a communicating enabled SureLight two stage variable speed integrated control All units use a redundant gas valve to assure safety shut off as required by CSA All spec...

Страница 2: ...overcurrent protection 15 20 20 20 Shipping Data lbs 1 package 130 153 164 173 NOTE Filters and provisions for mounting are not furnished and must be field provided 1 Annual Fuel Utilization Efficien...

Страница 3: ...ooling speed minimum 250 cfm Lennox iHarmony Zoning System Applications Minimum blower speed is 250 cfm SL280DF070V36A BLOWER MOTOR WATTS COOLING 1 Cooling Speed DIP Switch Settings Motor Watts Variou...

Страница 4: ...ling speed minimum 380 cfm Lennox iHarmony Zoning System Applications Minimum blower speed is 380 cfm SL280DF090V48B BLOWER MOTOR WATTS COOLING 1 Cooling Speed DIP Switch Settings Motor Watts Various...

Страница 5: ...ed minimum 450 cfm Lennox iHarmony Zoning System Applications Minimum blower speed is 450 cfm SL280DF090V60C BLOWER MOTOR WATTS COOLING 1 Cooling Speed DIP Switch Settings Motor Watts Various External...

Страница 6: ...peed minimum 450 cfm Lennox iHarmony Zoning System Applications Minimum blower speed is 450 cfm SL280DF110V60C BLOWER MOTOR WATTS COOLING 1 Cooling Speed DIP Switch Settings Motor Watts Various Extern...

Страница 7: ...CK SWITCH HEAT EXCHANGER COMBUSTION AIR INDUCER COMBUSTION AIR INDUCER PRESSURE SWITCHES GAS VALVE BURNER BOX ASSEMBLY INNER BLOWER ACCESS PANEL ACCESS PANEL CONTROL BOX Includes two stage integrated...

Страница 8: ...92 Units are equipped with the communicating enabled Sure Light two stage variable speed integrated control This control is used with the communicating thermostat as part of a communicating comfort sy...

Страница 9: ...mostat Move the DIP switch to ON for use with a single stage thermostat While in the single stage thermostat mode the burners will always fire on first stage heat The combustion air in ducer will oper...

Страница 10: ...DEMAND FROM 1ST STAGE T STAT R CLASS 2 VOLTAGE TO THERMOSTAT G MANUAL FAN FROM T STAT C THERMOSTAT SIGNAL GROUND CONNECTED TO TRANSFORMER GRD TR CHASIS GROUND GRD Y1 THERMOSTAT 1ST STAGE COOL SIGNAL...

Страница 11: ...2ND STAGE T STAT W1 HEAT DEMAND FROM 1ST STAGE T STAT R CLASS 2 VOLTAGE TO THERMOSTAT G MANUAL FAN FROM T STAT C THERMOSTAT SIGNAL GROUND CONNECTED TO TRANSFORMER GRD TR CHASIS GROUND GRD Y1 THERMOSTA...

Страница 12: ...OFF OPTION B OFF 82 100 OFF OPTION C OFF 100 100 OFF OPTION D OFF 100 OFF DEFAULT 10 10 HIGH SPEED MEDIUM HIGH SPEED MEDIUM LOW SPEED LOW SPEED 7 PROTECTIVE PLASTIC FILM ON DIP SWITCHES MAY BE REMOVED...

Страница 13: ...flame signal mode The integrated control will display the flame current on 7 segment LED in in micro amps uA Flame signal mode is exited after any of the following Power is reset Pressing and holding...

Страница 14: ...t Alarm clears 5 seconds after fault recovered E111 Low line voltage Reverse line power voltage wiring System resumes normal operation 5 seconds after fault recovered E112 Ground not detected System s...

Страница 15: ...ge appropriate feature will be set as installed and that could be seen in About screen In normal operation after control recognizes sensors alarm will be sent if valid temperature reading is lost To g...

Страница 16: ...for correct operation and restriction Resumes normal operation after fault is cleared E227 Low pressure switch open during trial for ignition or run mode Check pressure inches w c of low pressure swi...

Страница 17: ...ing connections 1 hour soft lockout Clears when calibration has finished successfully E290 Ignitor circuit fault Failed ignitor or triggering cir cuitry Measure resistance of hot surface ignitor Repla...

Страница 18: ...Volts between R O on integrated control with non communicating outdoor unit Dual fuel module required for heat pump application Configuration link R to O needs to be restored Replace link or hard wir...

Страница 19: ...pressor open run circuit Required amount of current is not passing through Run current transformer Clears the error after current is sensed in RUN sensor or 1 normal compressor run cycle or after powe...

Страница 20: ...w line voltage Line Voltage Low Voltage lower than nameplate rating Check power line voltage and correct Alarm clears 5 seconds after fault recovered E111 Low line voltage Reverse line power voltage w...

Страница 21: ...that could be seen in About screen In normal operation after control recognizes sensors alarm will be sent if valid temperature reading is lost To get rid of setting and alarm redo configu ration and...

Страница 22: ...for correct operation and restriction Resumes normal operation after fault is cleared E227 Low pressure switch open during trial for ignition or run mode Check pressure inches w c of low pressure swi...

Страница 23: ...ars when heat call finishes successfully E275 Soft lockout Flame sensed out of sequence Flame signal is gone Shut off gas Check for gas valve leak 1 hour soft lockout Clears when flame has been proven...

Страница 24: ...operate but might not meet efficiency and capacity pa rameters Alarm will clear when commissioning is exited Cleared after commissioning is complete E334 Relay Y1 stuck on interated control Replace in...

Страница 25: ...d 110 F at the exact moment that the blower is de en ergized Longer off delay settings provide lower supply air temperatures shorter settings provide higher supply air temperatures TABLE 6 provides th...

Страница 26: ...eed Switch 11 Switch 12 Switch 13 Increase 24 On On On Increase 18 On On Off Increase 12 On Off On Increase 6 On Off Off Factory Default Off Off Off Decrease 6 Off Off On Decrease 12 Off On Off Decrea...

Страница 27: ...rmal Operation 1 On On On Acceptable 24 VAC High 100 Compressor and indoor blower follow thermostat demand BASIC MODE only active on a Y1 thermostat demand Normal Operation 1 On On On Acceptable 24 VA...

Страница 28: ...by allowing the room space to maintain a cooler room thermostat setpoint ROOM THERMOSTAT CALLS FOR FIRST AND SECOND STAGE COOLING BASIC MODE only active on a Y1 thermostat demand Normal Operation 1 On...

Страница 29: ...WER MOTOR COMPONENTS STATOR WINDINGS OUTPUT SHAFT BEARING ROTOR FIGURE 8 The controller uses sensing devices to sense what posi tion the rotor is in at any given time By sensing the posi tion of the r...

Страница 30: ...to the unit before attempting to service motor WARNING Disconnect power from unit and wait at least five minutes to allow capacitors to discharge before attempting to service motor Failure to wait ma...

Страница 31: ...Line Voltage Connector J49 4 Pin Control Connector J48 5 Pin J49 4 Pin FIGURE 9 BLOWER B3 HARNESS CONNECTORS MOTOR with INTEGRATED CONTROLLER SHAFT P49 4 Pin P48 5 Pin P48 5 Pin P49 4 Pin J48 Connecto...

Страница 32: ...A Measure the resistance between each of the three motor leads 3 pin plug and the unpainted part of the end shield If the winding resistance to ground is 100k ohms replace the motor and control module...

Страница 33: ...14 The limit is a N C SPST manual reset limit connected in series with the secondary limit S21 When S47 senses rollout the circuit breaks and the ignition control immedi ately stops ignition and close...

Страница 34: ...Page 34 HEATING COMPONENTS Sight Glass Sensor Rollout Switch Rollout Switch alternate location Gas Valve and Manifold Assembly Burners Ignitor FIGURE 14...

Страница 35: ...ug and control If the reading is not correct the issue is the ignitor Test 3 Insert meter probes into the terminals 1 and 5 Use small diameter probes in order to not damage plug Check voltage during 2...

Страница 36: ...are a single pole single throw proving switch electrically connected to the furnace control The purpose of the switch is to prevent burner operation if the com bustion air inducer is not operating or...

Страница 37: ...lly started steps 1 through 11 may need to be repeated to purge air from gas line Turning Off Gas To Unit 1 Set thermostat to lowest setting 2 Turn off all electrical power to unit if service is to be...

Страница 38: ...t use matches candles flame or any other source of ignition to check for gas leaks D Testing Gas Supply Pressure White Rodgers Gas Valve An inlet post located on the gas valve provides access to the s...

Страница 39: ...33 66 82 164 IMPORTANT For safety shut unit off and remove manometer as soon as an accurate reading has been obtained Take care to replace pressure tap plug G Proper Combustion Furnace should operate...

Страница 40: ...kit required 3 A natural to L P propane gas changeover kit is necessary to convert this unit Refer to the changeover kit installation instruction for the conversion procedure NOTE Units may be install...

Страница 41: ...diameter hole in supply and return air plenums Insert manometer hose flush with inside edge of hole or insulation Seal around the hose with permagum Connect the zero end of the manometer to the discha...

Страница 42: ...xchanger inspection procedure This procedure can be viewed at www ahrinet org 8 Ensure sufficient combustion air is available to the furnace Fresh air grilles and louvers on the unit and in the room w...

Страница 43: ...ful with the collector box gasket If the gasket is damaged it must be replaced to prevent leakage 6 Disconnect gas supply piping Remove the screw securing the burner box cover and remove cover Remove...

Страница 44: ...utlet 18 Reconnect gas supply piping 19 Turn on power and gas supply to unit 20 Set thermostat and check for proper operation 21 Check all piping connections factory and field for gas leaks Use a leak...

Страница 45: ...Page 45 VII Wiring and Sequence of Operation Wiring Diagram With Ignition Control 103130 XX SL280DFV Schematic Wiring Diagram...

Страница 46: ...Page 46 Wiring Diagram With Ignition Control 107045 XX...

Страница 47: ...tat demand for low fire first stage heat is satisfied the gas valve is de energized and the field selected indoor blower off delay begins The combustion air inducer begins a 5 second post purge period...

Страница 48: ...HARGE AIR SENSOR CLIP ON BOARD LINK W915 Y1 TO Y2 FOR TWO STAGE OPERATION Communicating Integrated Control Communicating Thermostat Outdoor Unit nace air handler control and four wires between the out...

Страница 49: ...s 18 RSBus Rf W Gh Gs Cf HVAC EQUIP DEHUMIDIFIER CONTROL HVAC EQUIPMENT DH 24V IN JUMPER COMMUNICATING ENABLED FURNACE COMMUNICATING ENABLED FURNACE ICOMMUNICATING THERMOSTAT CONVENTIONAL NON COMMUNIC...

Страница 50: ...DOOR UNIT LENNOX COMMUNICATING THERMOSTAT OR DAMPER CONTROL MODULE CONVENTIONAL TERMINALS FLOAT SWITCH LENNOX COMMUNICATING INDOOR UNIT CONVENTIONAL OUTDOOR UNIT 1 OR 2 STAGE LENNOX COMMUNICATING FURN...

Страница 51: ...N 12 minutes ON DO NOT CUT ANY ON BOARD LINKS S1 T STAT FURNACE TERM STRIP OUTDOOR UNIT 1 Heat 2 Cool NOTE Use DIP switch 2 to set second stage heat ON delay OFF 7 minutes ON 12 minutes ON CUT ON BOAR...

Страница 52: ...RD LINK W915 2 STAGE COMPR S1 T STAT FURNACE TERM STRIP OUTDOOR UNIT 2 Heat 2 Cool with t stat with humidity control OFF CUT ON BOARD LINK W915 2 STAGE COMPR CUT ON BOARD LINK W914 DEHUM OR HARMONY S1...

Страница 53: ...ol OFF CUT ON BOARD LINK W951 HEAT PUMP T STAT FURNACE TERM STRIP HEAT PUMP 67M41 Y H L Y2 D B L Y2 T T outdoor sensor Dual Fuel Two Stage Heat Pump ComfortSense thermostat w bilities Capable of 2 sta...

Страница 54: ...MP CUT ON BOARD LINK W914 DEHUM OR HARMONY T STAT FURNACE TERM STRIP HEAT PUMP 67M41 Y H L Y2 D B L Y2 T T outdoor sensor Dual Fuel Two Stage Heat Pump ComfortSense thermostat w bilities Capable of 2...

Страница 55: ...FOR TWO STAGE OPERATION Communicating Integrated Control Communicating Thermostat Outdoor Unit nace air handler control and four wires between the outdoor unit and the furnace air handler control Whe...

Страница 56: ...otal length of all con nections on the RSBus is limited to 1500ft Wire gauge of RSBus wire is 18 RSBus Rf W Gh Gs Cf HVAC EQUIP DEHUMIDIFIER CONTROL HVAC EQUIPMENT DH 24V IN JUMPER COMMUNICATING ENABL...

Страница 57: ...IT LENNOX COMMUNICATING INDOOR UNIT LENNOX COMMUNICATING THERMOSTAT OR DAMPER CONTROL MODULE CONVENTIONAL TERMINALS FLOAT SWITCH LENNOX COMMUNICATING INDOOR UNIT CONVENTIONAL OUTDOOR UNIT 1 OR 2 STAGE...

Страница 58: ...2 minutes ON DO NOT CUT ANY ON BOARD LINKS S1 T STAT FURNACE TERM STRIP OUTDOOR UNIT H 1 Heat 2 Cool NOTE Use DIP switch 2 to set second stage heat ON delay OFF 7 minutes ON 12 minutes ON CUT ON BOARD...

Страница 59: ...INK W915 2 STAGE COMPR S1 T STAT FURNACE TERM STRIP OUTDOOR UNIT H 2 Heat 2 Cool with t stat with humidity control OFF CUT ON BOARD LINK W915 2 STAGE COMPR CUT ON BOARD LINK W914 DEHUM OR HARMONY S1 T...

Страница 60: ...T ON BOARD LINK W951 HEAT PUMP L7742U T STAT FURNACE TERM STRIP HEAT PUMP 67M41 Y H L Y2 D B L Y2 T T outdoor sensor H Dual Fuel Two Stage Heat Pump ComfortSense thermostat w bilities Capable of 2 sta...

Страница 61: ...T ON BOARD LINK W914 DEHUM OR HARMONY L7742U T STAT FURNACE TERM STRIP HEAT PUMP 67M41 Y H L Y2 D B L Y2 T T outdoor sensor H Dual Fuel Two Stage Heat Pump ComfortSense thermostat w bilities Capable o...

Страница 62: ...ntegrated control will store code in memory and will automatically exit Program Unit Capacity Size Mode and reset If second period expires or push button is held less than five seconds control will au...

Страница 63: ...INDUCER OFF AFTER POST PURGE HARD LOCKOUT ERROR CODE FLASHES YES YES YES 1 2 1 LOW PRESSURE SWITCH OPENS 1 2 HARD LOCKOUT REQUIRES THERMOSTAT RESET OR CYCLING OF POWER TO RESET THE LOCKOUT 3 IN CASE H...

Страница 64: ...2ND STAGE HEAT YES CALL FOR HEAT SATISFIED INDUCER SWITCHED TO HIGH SPEED SINGLE STAGE THERMOSTAT 2 STAGE THERMOSTAT NO INDUCER SWITCHED TO LOW SPEED 5 MINUTE DELAY ERROR CODE FLASHES HIGH PRESSURE S...

Страница 65: ...TISFIED NO YES DE ENERGIZE 2ND STAGE GAS VALVE INDUCER SPEED SWITCHED TO LOW SPEED 1 2 3 1ST STAGE HEAT 1ST STAGE CALL FOR HEAT SATISFIED NO YES GAS VALVE DE ENERGIZED INDUCER OFF AFTER 5 SECOND POST...

Страница 66: ...PECIFIC PROFILE IS SELECTED USING THE 1 1 2 2 1 1 1 2 2 DE ENERGIZE 1ST STAGE COOLING CONTACTOR COMPRESSOR FAN 2ND STAGE COOLING REQUEST STILL ACTIVE COOLING REQUEST STILL ACTIVE CALL FOR COOLING WAIT...

Страница 67: ...REQUEST FOR COOLING RECEIVED GO TO CALL FOR 1ST STAGE HEAT YES GO TO CALL FOR COOLING 1 1 1 4 YES NO CALL FOR FAN INDOOR BLOWER ON CONTINUOUS FAN SPEED MAINTAIN INDOOR BLOWER AT CONTINUOUS FAN MAINTAI...

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