Lennox International Inc SL280UH090V36B Reconfigure the system. Replace control if heating, Tings

Page 62

Integrated Control Diagnostic Codes (continued)

E 131

Corrupted control parameters (Verify configuration of system). Communi-

Reconfigure the system. Replace control if heating

 

cating only.

or cooling is not available. Only applicable in the

 

 

communicating mode, not in startup. Exit from Com-

 

 

missioning and Execute ’Set Factory Default mode’.

 

 

Control will still operate on default parameter set-

 

 

tings.

 

 

 

E 180

Outdoor air temperature sensor failure. Only shown if shorted or out−of−

Compare outdoor sensor resistance to temperature/

 

range.

resistance charts in unit installation instructions.

 

 

Replace sensor pack if necessary. At beginning of

 

 

(any) configuration, furnace or air handler control

 

 

will sense outdoor air and discharge air temperature

 

 

sensor(s). If detected (reading in range), appropri-

 

 

ate 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 get rid of set-

 

 

ting and alarm, redo configuration and make sure

 

 

that temperature sensor is marked as ’not installed’

 

 

in Indoor Unit ’About’ screen. When Indoor unit con-

 

 

trol is replaced, thermostat will ’tell’ new control if

 

 

temperature sensor is in system or not. Clears 30

 

 

seconds after fault recovered.

 

 

 

E 200

Hard lockout − Rollout circuit open or previously open.

Correct cause of rollout trip, or replace flame rollout

 

 

switch. Test furnace operation. Cleared after fault

 

 

recovered.

 

 

 

E 201

Indoor blower communication failure − Unable to communicate with blow-

Indoor blower communication failure (including pow-

 

er motor.

er outage). Lost communication with indoor blower

 

 

motor. Possible causes: motor not powered, loose

 

 

wiring. Problem may be on control or motor side.

 

 

Cleared after fault recovered.

 

 

 

E 202

Indoor blower motor mis−match − Indoor motor horsepower does not

Incorrect appliance capacity code selected. Check

 

match unit capacity. See Page 67.

for proper configuring under: Unit Size Codes for

 

 

Furnace/Air Handler on configuration guide or in

 

 

installation instructions. Cleared after the correct

 

 

match is detected following a reset. (Remove ther-

 

 

mostat from system while applying power and re-

 

 

programming.)

 

 

 

E 203

Appliance capacity / size is NOT programmed. Invalid unit codes refer to

No appliance capacity code selected. Check for

 

configuration flow chart. See Page 67.

proper configuring under: Unit Size Codes for Fur-

 

 

nace on configuration guide or in installation instruc-

 

 

tions. Critical Alert. Cleared after valid unit code is

 

 

read following a reset. (Remove thermostat from

 

 

system while applying power and reprogramming.)

 

 

 

E 204

Gas valve mis−wired.

Check gas valve operation and wiring. Clears when

 

 

repaired.

 

 

 

E 205

Gas valve control relay contact shorted.

Check wiring on control and gas valve. If wiring is

 

 

correct, replace control.

 

 

 

E 206

Gas valve second−stage relay failure

Furnace will operate on 1st stage for remainder of

 

 

the heating demand. Will clear after fault recovered.

 

 

If unable to operate 2nd stage, replace control.

 

 

 

E 207

Hot surface ignitor sensed open − Refer to troubleshooting. See Page 68.

Measure resistance of hot surface ignitor. Replace if

 

 

open or not within specified range found in IOM.

 

 

Resumes normal operation after fault is cleared.

 

 

 

Page 62

Page 61 Page 63
Image 62
Page 61 Page 63
Contents Installation Instructions SL280UHV Table of ContentsSide Return Air Opening Unit Dimensions − inches mmReturn air from both sides Either SideSight Glass Access Panel Blower AssemblyParts Arrangement Shipping and Packing List Safety InformationSL280UHV Gas Furnace Air Handler Unit Use of Furnace as Construction HeaterGeneral EvaporatorCombustion, Dilution & Ventilation Air Equipment in Confined Space ALL AIR from InsideEquipment Confined Space ALL AIR from Outside Equipment in Confined Space ALL AIR from OutsideEquipment in Confined Space Blower Motor Rigid LEG Setting EquipmentBottom Indoor AIR 20 X 25 XFurnace Front Return AIR BaseEnd Bottom Horizontal Application Installation Clearances Top LeftRight Typical Horizontal ApplicationFilters Duct SystemTop Vent Discharge VentingUpflow Position Left Side Vent DischargeSide Vent Discharge Horizontal Left PositionHorizontal Right Position Sticker Common Venting Using Metal−Lined Masonry ChimneyDisconnected Vent Vent PipeVent Connector Through an unused masonry chimney flue is not considered102 127 −1/2 152 178 10−1/2 MIN MAX Feet FAN + FAN FAN + NAT 130 Carbon Monoxide Poisoning Hazard Gas Piping Ers or straps. Install a drip leg in vertical pipe runs to− In some localities, codes may require the installation Every 8 to 10 feet 2.44 to 3.01 m with suitable hangRight−Side Air Discharge Horizontal ApplicationLeft−Side Air Discharge Electrostatic Discharge ESD Interior MAKE−UP BOX InstallationElectrical BOXNon−Communicating CommunicatingIcomfortt Integrated Control Outdoor Unit Icomfort Touch 120V Connections NON−COMMUNICATING System WiringCommunicating System Wiring ApplicationsDIP Switch Settings and On−Board Links See figure OFF Single Stage Thermostat w Dual fuel capa Bilities SL280UHV Schematic Wiring Diagram Typical SL280UHV Field Wiring Diagram + = Data High Connection − = Data LOW Connection Integrated ControlRS−BUS Link TB82, future use −10% approx OFF On−Board Links 940 1045985 880SL280UH090V36B Blower Performance less filter 1155 12801220 10951170 12951235 11101165 13601230 11001160 12901225 1380+18% 1605 SL280UH110V60C Blower Performance less filter +18% 1785 SL280UH135V60D Blower Performance less filter Operating Sequence Compressor Thermostat energizes Y2White Rodgers GAS Valve For Your Safety Read Before LightingUnit Start−Up Honeywell GAS ValveProper Combustion Gas Pressure AdjustmentGAS Meter Clocking Chart DialHigh Altitude Other Unit Adjustments Heating Sequence of OperationSEC Heating Operation with TWO−STAGE ThermostatHeating Operation with Single Stage Thermostat Service Electrical SHOCK, Fire Or Explosion Hazard11− Back wash using steam. Begin from the burner opening SL280UHV BURNER, Combustion AIR Inducer Assembly13− To clean the combustion air inducer visually inspect 17− Reinstall burner box, manifold assembly and burner boxSL280UHV NOX Inserts Planned Service Repair Parts ListIntegrated Control Diagnostic Modes Integrated Control Diagnostic CodesPower at the thermostat. Alert stops all services Normal operation 5 seconds after fault recoveredFurnace / air handler. Clears after fault recovered Equipment is unable to communicate. IndicatesControl will still operate on default parameter set Reconfigure the system. Replace control if heatingMissioning and Execute ’Set Factory Default mode’ Ate feature will be set as ’installed’ and that couldFault is cleared Low pressure switch failed openSumes normal operation after fault is cleared Tion after fault is clearedSoft lockout or reset Open or not within specifications −hour soft lockOut. Clears when flame has been proven stable To flame failureError after current is sensed in both RUN Pair/add duct. Cleared after the current service deIs not running. Check power to outdoor unit. Clears Vice is removed, or after power resetSor run cycle, or after power reset Program Unit Capacity/Size Mode FinishedTroubleshooting Heating Sequence of Operation Call for FIRST−STAGE HeatCall for SECOND−STAGE Heat Call for Heat SatisfiedCall for Heat Satisfied FIRST−STAGE Heat SECOND−STAGE Heat 2ND Stage HeatTroubleshooting Cooling Sequence of Operation Call for CoolingTroubleshooting Continuous Fan Sequence of Operation Call for FAN
Top Page Image Contents