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BLOWER DATA

SL280UH090V36B BLOWER PERFORMANCE (less filter)

BOTTOM RETURN AIR

0 through 0.8 in. w.g. (Heating) and 0 through 1.0 in. w.g. (Cooling) External Static Pressure Range

HEATING

1

 Heating Speed 

DIP Switch 

Settings

First Stage Heating Speed - cfm

Second Stage Heating Speed - cfm

+24%

1300

1420

+18%

1250

1335

+12%

1185

1285

+6%

1145

1240

Factory Default

1070

1170

–6%

1015

1100

–12%

970

1035

–18%

880

980

COOLING

1

 Cooling Speed 

DIP Switch 

Settings

First Stage Cooling Speed - cfm

Second Stage Cooling Speed - cfm

Low

Medium-Low Medium-High

2

 High

Low

Medium-Low Medium-High

2

 High

+

616

755

846

980

1018

1197

1291

1399

Factory Default

571

698

767

886

909

1083

1197

1284

489

627

681

812

834

968

1081

1179

1

  Cooling and heating speeds are based on a combination of DIP switch settings on the furnace control. Refer to Installation Instructions for specific DIP Switch Settings.

2

 Factory default setting.

NOTES -  The effect of static pressure is included in air volumes shown.

 

First stage HEAT is approximately 91% of the same second stage HEAT.

 

First stage COOL (two-stage air conditioning units only) is approximately 70% of the same second stage COOL speed position.

 

Continuous Fan Only speed is selectable at 28% and 38% of the selected second stage cooling speed - minimum 250 cfm.

 

Lennox iHarmony

®

 Zoning System Applications - Minimum blower speed is 250 cfm.

SL280UH090V36B BLOWER MOTOR WATTS (COOLING)

1

 Cooling Speed 

DIP Switch 

Settings

Motor Watts @ Various External Static Pressures - in. wg.

First Stage

Second Stage

0

0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8

0

0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0

+ Setting

Cooling 

Speed

Low

13

29

43

62

73

86 105

122

137 63

85 105 134 159 186 207 230 252 275 292

Med-Low 27

46

64

84

102

119 137 159 177

112

136 157 193 224 247 277 300 321 350 372

Med-High 43

59

80

104 119 143 159 178 191 145 163 199 233 264 289 316 345 374 397 417

High

57

78 103 125 148

181 202

219 245 190 219 254 273 310 351 377 408 442 467 489

Factory Default

Cooling 

Speed

Low

12

25

42

55

65

86

93 115 123 51

70

97 113 139 155 176 199

221

242 261

Med-Low

22

38

52

70

89

108 121

135 150 77

99 129 152 184 206 231 264 283 307 333

Med-High 27

46

64

85 103 123 141 157 179

112

136 157 193 224 247 277 300 321 350 372

High

51

68

90

110

136 150 172 198

211

145 164 197 232 257 290 320 351 362 396 411

– Setting

Cooling 

Speed

Low

9

21

35

45

60

74

89

100

119 41

59

80

96 116 136 159 176 195 204 230

Med-Low 16

29

46

64

78

93 106

121

138 58

80

104 124 150 175 192

221

238 260 284

Med-High

22

40

54

68

90

108

125 141 153 73

94 125 152 177 203

228

258 279 304 326

High

36

53

72

91

112

131 150 169 185 99 125 154

182

207 234 266 296 320 344 369

Содержание iComfort SL280UH070V36A

Страница 1: ...lable for conversion to LPG operation SL280UH V X model units are equipped with a communicating SureLight two stage variable speed integrated control SL280UHV X unit meets the California Nitrogen Oxid...

Страница 2: ...x 5 in adaptor See Venting Tables in the Installation Instructions for detailed information SPECIFICATIONS Gas Heating Performance Model No SL280UH090V60C SL280UH110V60C SL280UH135V60D Model No Low N...

Страница 3: ...stage cooling speed minimum 250 cfm Lennox iHarmony Zoning System Applications Minimum blower speed is 250 cfm SL280UH070V36A BLOWER MOTOR WATTS COOLING 1 Cooling Speed DIP Switch Settings Motor Watt...

Страница 4: ...second stage cooling speed minimum 250 cfm Lennox iHarmony Zoning System Applications Minimum blower speed is 250 cfm SL28UH070V36A BLOWER MOTOR WATTS COOLING 1 Cooling Speed DIP Switch Settings Moto...

Страница 5: ...selected second stage cooling speed minimum 250 cfm Lennox iHarmony Zoning System Applications Minimum blower speed is 250 cfm SL280UH090V36B BLOWER MOTOR WATTS COOLING 1 Cooling Speed DIP Switch Set...

Страница 6: ...f the selected second stage cooling speed minimum 250 cfm Lennox iHarmony Zoning System Applications Minimum blower speed is 250 cfm SL280UH090V36B BLOWER MOTOR WATTS COOLING 1 Cooling Speed DIP Switc...

Страница 7: ...stage cooling speed minimum 380 cfm Lennox iHarmony Zoning System Applications Minimum blower speed is 380 cfm SL280UH090V48B BLOWER MOTOR WATTS COOLING 1 Cooling Speed DIP Switch Settings Motor Watt...

Страница 8: ...cond stage cooling speed minimum 380 cfm Lennox iHarmony Zoning System Applications Minimum blower speed is 380 cfm SL280UH090V48B BLOWER MOTOR WATTS COOLING 1 Cooling Speed DIP Switch Settings Motor...

Страница 9: ...selected second stage cooling speed minimum 380 cfm Lennox iHarmony Zoning System Applications Minimum blower speed is 380 cfm SL280UH090V48B BLOWER MOTOR WATTS COOLING 1 Cooling Speed DIP Switch Set...

Страница 10: ...of the selected second stage cooling speed minimum 450 cfm Lennox iHarmony Zoning System Applications Minimum blower speed is 450 cfm SL280UH090V60C BLOWER MOTOR WATTS COOLING 1 Cooling Speed DIP Swit...

Страница 11: ...ontinuous Fan Only speed is selectable at 28 and 38 of the selected second stage cooling speed minimum 450 cfm Lennox iHarmony Zoning System Applications Minimum blower speed is 450 cfm SL280UH090V60C...

Страница 12: ...of the selected second stage cooling speed minimum 450 cfm Lennox iHarmony Zoning System Applications Minimum blower speed is 450 cfm SL280UH110V60C BLOWER MOTOR WATTS COOLING 1 Cooling Speed DIP Swi...

Страница 13: ...n Continuous Fan Only speed is selectable at 28 and 38 of the selected second stage cooling speed minimum 450 cfm Lennox iHarmony Zoning System Applications Minimum blower speed is 450 cfm SL280UH110V...

Страница 14: ...38 of the selected second stage cooling speed minimum 450 cfm Lennox iHarmony Zoning System Applications Minimum blower speed is 450 cfm SL280UH135V60D BLOWER MOTOR WATTS COOLING 1 Cooling Speed DIP...

Страница 15: ...tion Continuous Fan Only speed is selectable at 28 and 38 of the selected second stage cooling speed minimum 450 cfm Lennox iHarmony Zoning System Applications Minimum blower speed is 450 cfm SL280UH1...

Страница 16: ...R INDUCER BLOWER ASSEMBLY BURNER BOX INNER BLOWER ACCESS PANEL ACCESS PANEL SIGHT GLASS COMBUSTION AIR INDUCER PRESSURE SWITCH GAS VALVE CONTROL BOX with blower drive in some units Not to scale SECOND...

Страница 17: ...pressing the button on the face See FIGURE 3 CIRCUIT BREAKER CB8 PRESS TO RESET FIGURE 3 WARNING Shock hazard Disconnect power before servicing Integrated control is not field repairable If control i...

Страница 18: ...ized in two modes SINGLE STAGE thermostat or TWO STAGE thermostat The thermostat selection is made using a DIP switch and must be posi tioned for the particular application DIP switch 1 labeled T STAT...

Страница 19: ...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 20: ...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 21: ...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 22: ...me signal mode The integrated control will display the flame current on 7 segment LED in micro amps uA Flame signal mode is exited after any of the following Power is reset Pressing and holding push b...

Страница 23: ...arm 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 shuts...

Страница 24: ...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 25: ...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 26: ...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 27: ...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 28: ...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 29: ...ne 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 wirin...

Страница 30: ...d 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 an...

Страница 31: ...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 32: ...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 33: ...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 34: ...act moment that the blower is de energized Lon ger off delay settings provide lower supply air tempera tures shorter settings provide higher supply air tempera tures TABLE 4 provides the blower off ti...

Страница 35: ...itch 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 Decrease 18...

Страница 36: ...mal 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 VAC...

Страница 37: ...y 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 38: ...eceives all neces sary functional parameters from the integrated control and does not rely on a factory program like traditional variable speed motors Units use a three phase electronically controlled...

Страница 39: ...is called soft start The motor may take as long as 10 15 seconds to reach full speed If the motor does not reach 200 rpm within 13 seconds the motor shuts down Then the motor will immediately attempt...

Страница 40: ...ine Voltage Connector J49 4 Pin Control Connector J48 5 Pin J49 4 Pin FIGURE 10 BLOWER B3 HARNESS CONNECTORS MOTOR with INTEGRATED CONTROLLER SHAFT P49 4 Pin P48 5 Pin P48 5 Pin P49 4 Pin J48 Connecto...

Страница 41: ...T 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 modu...

Страница 42: ...set 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 closes the gas valve Rollout can be cause...

Страница 43: ...3 HEATING COMPONENTS Ignitor Burner Assembly Sensor Gas Valve Burner Box Front Panel Screw remove and panel will swing open and off Rollout Switch Rollout Switch alternate location Rollout Switch FIGU...

Страница 44: ...then then there is a problem with the wiring between the jack plug and control If the reading is not correct the issue is the ignitor Meter set to ohms Test 3 Insert meter probes into the terminals 1...

Страница 45: ...cted to the combustion air inducer housing by means of a flexible silicone hose It monitors negative air pressure in the com bustion air inducer housing The switches are a single pole single throw pro...

Страница 46: ...ombustion air inducer then reinstall the mounting screws See unit Installation Instructions for more detail IMPORTANT The combustion air pressure switch must be moved for horizontal discharge air left...

Страница 47: ...W under cap FIGURE 19 GAS VALVE SHOWN IN ON POSITION MANIFOLD PRESSURE TAP ON SIDE HIGH FIRE ADJUSTING SCREW under cap INLET PRESSURE TAP ON SIDE Resideo Two Stage Gs Valve FIGURE 20 9 Turn switch on...

Страница 48: ...fore pressure testing to iso late furnace from gas supply MANUAL MAIN SHUT OFF VALVE WILL NOT HOLD TEST PRESSURE IN EXCESS OF 0 5 PSIG 14 W C GAS VALVE CAP GAS PIPING TEST PROCEDURE FIELD PROVIDED LIN...

Страница 49: ...s incorrect check gas orifices for proper size and restriction NOTE To obtain accurate reading shut off all other gas appliances connected to meter G Proper Combustion Furnace should operate minimum 1...

Страница 50: ...or these units 2 Natural gas high altitude orifice 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...

Страница 51: ...RE RISE Supply Duct Temperature ________ Return Duct Temperature _ _____ Temperature Rise ________ FIGURE 22 C External Static Pressure 1 Tap locations shown in FIGURE 23 2 Punch a 1 4 diameter hole i...

Страница 52: ...e and connections for leaks 4 Check the cleanliness of filters and change if necessary monthly 5 Check the condition and cleanliness of burners and heat exchanger and clean if necessary 6 Check the cl...

Страница 53: ...E 24 9 Remove screws from both sides top and bottom of vestibule panel 10 Remove heat exchanger It may be necessary to spread cabinet side to allow more room If so remove five screws from the left sid...

Страница 54: ...26 VII Wiring and Sequence of Operation Integrated Control Self Check When there is a call for heat the integrated control runs a self check The control checks for S10 primary limit S21 secondary lim...

Страница 55: ...Page 55 Wiring Diagram With Ignition Control 103130 XX...

Страница 56: ...Page 56 Wiring Diagram With Ignition Control 103130 XX and Units With Blower Drive...

Страница 57: ...Page 57 Wiring Diagram With Ignition Control 107045 XX...

Страница 58: ...at 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 59: ...GE 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 outdoo...

Страница 60: ...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 61: ...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 62: ...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 63: ...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 64: ...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 65: ...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 66: ...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 67: ...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 68: ...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 69: ...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 70: ...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 71: ...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 72: ...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 73: ...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 74: ...S H S I OFF NO 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 LOCK...

Страница 75: ...FOR 1ST REQUEST FOR 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 FLA...

Страница 76: ...AGE CALL FOR HEAT SATISFIED 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...

Страница 77: ...PROFILES THE SPECIFIC 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 F...

Страница 78: ...FOR HEAT RECEIVED 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 CON...

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