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Honeywell L8104A, User Manual

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Honeywell L8104A User Manual Download Page 19

19

68-0063—3

L8104A,B,C,D

MATERIAL SAFETY DATA SHEET

Summary of Contents for L8104A

Page 1: ...ed in ratios of 1 1 2 1 3 1 and 4 1 Two sensing bulbs provide temperature averaging L8104C has two sensing bulbs and manual reset pushbutton L8104D has one sensing bulb and manual reset pushbutton 68 0063 3 Temperature range is factory set to meet application requirements Maximumsettingtemperatureis200 F 93 C ECO limit setting is factory set to meet application requirements For L8104A B standing p...

Page 2: ...h 5 Recycling or nonrecycling ECO switch 10 Additional system components if desired If you have additional questions need further information or would like to comment on our products or services please write or phone 1 Your local Honeywell Home and Building Control Sales Office please check the white pages of your phone directory 2 Home and Building Control Customer Logistics Honeywell Inc 1885 Do...

Page 3: ...TER M413 3 4 19 3 8 10 3 8 10 5 32 4 3 8 DIA 10 1 1 4 32 15 16 24 1 1 16 27 1 3 8 35 Fig 2 Approximate dimensions in in mm of L8104A B Electronic Control Module REPLACEMENT PARTS Replacement electronic control modules sensing bulbs and remote potentiometers are 140 1 2 0 160 180 1 0 0 SEN 1 SEN 2 LOWER UPPER 24 V HOT ONLY COM RELAY NO 3 8 10 1 2 13 1 1 8 29 9 32 7 1 25 3 15 32 88 2 15 16 75 170 DI...

Page 4: ...or Assembly 42 in 107 cm 150 C 302 F leadwires with 1 4 in quick connects 198799C Sensor Assembly 42 in 107 cm 105 C 221 F leadwires with 1 4 in quick connects 198799D Sensor Assembly 42 in 107 cm 105 C 221 F leadwires with 1 4 in quick connects 200636A Sensor Assembly 180 F to 201 F 83 C to 94 C cutoff temperature 22 in 56 cm 150 C 302 F leadwires 200636B Sensor Assembly 180 F to 201 F 83 C to 94...

Page 5: ...response Use heat conductive compound available in 4 oz can as Honeywell part no 107408 to fill the space between the bulb and the well and improve heat transfer characteris tics Make sure the bulb is held firmly in the well If the sensor is directly immersed use a 3 8 in x 1 2 in compression to M I P coupling or O ring and clamp to prevent leaks and keep bulb leadwires dry Electronic Control Modu...

Page 6: ... SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED FACTORY INSTALLED JUMPER DO NOT REMOVE 1 4 IN TAB TERMINALS 3 3 16 IN TAB TERMINALS 3 SENSING BULB WITH ECO SWITCH 1 L1 HOT L2 1 4 4 4 5 5 5 2 3 2 L8104A BLACK BLACK RED RED SEN 1 LOWER HOT 24V ONLY COM RELAY NO 24V 3 4 5 1ST OPERATOR 2ND OPERATOR PILOT VALVE COM MAIN VALVE VR8440 OR VR844 S8600F H M S8610F H MV MV PV PV GND BURN...

Page 7: ... 24V ONLY HOT COM RELAY NO ECO CONNECTOR TH TR VR8200 GAS VLAVE 24V Q308 1 2 3 SETPOINT POTENTIOMETER SHOWN FROM BACK UPPER SEN 2 POT M129B POWER SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED SENSING BULB WITH ECO SWITCH SENSING BULB 1 L1 HOT L2 1 2 3 4 2 4 4 4 4 4 3 3 3 L8104B BLACK BLACK BLACK BLACK RED RED SEN 1 LOWER 24V HOT ONLY COM RELAY NO 24V UPPER SEN 2 140 1 2 0 160...

Page 8: ...0 9M 2 L8104C SEN 1 SEN 2 LOWER UPPER 24V PV ECO ECO VALVE COM LOAD POT 5 5 1ST OPERATOR 2ND OPERATOR PILOT COM MAIN VALVE DUAL VALVE COMBINAITON GAS CONTROL S8600H MV MV PV PV GND BURNER 24V GND 24V TH W OPT SPARK VENT DAMPER PLUG OPT BLACK BLACK BLACK BLACK RED RED Q345 Q346 Q348 Q362 Q381 PILOT BURNER IGNITER SENSOR PILOT BURNER GROUND PILOT GAS SUPPLY CONTROLS IN 24V CIRCUIT MUST NOT BE IN GRO...

Page 9: ... CABLE LENGTH 3 FT 0 9M 2 L8104D SEN 1 LOWER 24V PV ECO ECO VALVE COM LOAD POT 5 5 1ST OPERATOR 2ND OPERATOR PILOT COM MAIN VALVE DUAL VALVE COMBINATION GAS CONTROL S8600H MV MV PV PV GND BURNER 24V GND 24V TH W OPT SPARK VENT DAMPER PLUG OPT BLACK BLACK RED RED Q345 Q346 Q348 Q362 Q381 PILOT BURNER IGNITER SENSOR PILOT BURNER GROUND PILOT GAS SUPPLY CONTROLS IN 24V CIRCUIT MUST NOT BE IN GROUND L...

Page 10: ...otely mounted potentiometer when used with L8104B Dual Bulb Controller MAXIMUM SETTING AT FULLY CLOCKWISE POSITION 200650 POTENTIOMETER 180 o F 135 o F 90o F 3 2 1 M133A TABLE 1 THERMISTOR RESISTANCE AT VARIOUS TEMPERATURES IN FAHRENHEIT Temp erature Resistance K ohms F 0 1 2 3 4 5 6 7 8 9 40 26109 25400 24712 24045 23399 22771 22163 21573 21000 20445 50 19906 19383 18876 18383 17905 17440 16990 1...

Page 11: ...perature drops below the ECO tempera ture Before the system will restart however the system must be reset On a standing pilot system the pilot must be relit On an electronic ignition system power to the 100 percent lockout ignition module must be off for one minute A nonrecycling one shot ECO switch will not remake The sensing bulb containing the switch must be replaced L8104C D The L8104C D uses ...

Page 12: ...RESISTANCE OF POTENTIOMETER WITH OHMMETER IS RESISTANCE GREATER THAN 1000 OHMS AT MINIMUM TEMPERATURE SETTING CHECKS FOR SHORT POTENTIOMETER OK REPLACE ELECTRONIC CONTROL MODULE RECONNECT ALL LEADS AND CHECK OUT SYSTEM SENSOR S MAY BE SHORTED OR OPEN CHECK FOR LOOSE BROKEN OR SHORTED WIRES REPLACE SENSING BULB S IF NECESSARY REPLACE SENSING BULB WITH ECO LIMIT AND CHECK OUT BALANCE OF SYSTEM REPLA...

Page 13: ...NSOR LEADS FROM ELECTRONIC CONTROL MODULE AND MEASURE RESISTANCE OF SENSOR S WITH OHMMETER SENSORS OK IS THE POTENTIOMETER REMOTE DISCONNECT POTENTIOMETER LEADS FROM ELECTRONIC CONTROL MODULE MEASURE RESISTANCE OF POTENTIOMETER WITH OHMMETER POTENTIOMETER OK REPLACE ELECTRONIC CONTROL MODULE RECONNECT ALL LEADS AND CHECK OUT SYSTEM YES NO NO YES NO YES YES YES NO NO M135B IS VOLTAGE BETWEEN 21 5 A...

Page 14: ...S AND CHECK OUT SYSTEM YES NO NO NO REFER TO TROUBLESHOOTING IF WATER IS TOO HOT SENSOR S MAY BE SHORTED OR OPEN CHECK FOR LOOSE BROKEN OR SHORTED WIRES REPLACE SENSING BULB S IF NECESSARY REPLACE ELECTRONIC CONTROL MODULE RECONNECT ALL LEADS AND CHECK OUT SYSTEM REPLACE POTENTIOMETER RECONNECT ALL LEADS AND CHECK OUT SYSTEM REPLACE SENSING BULB WITH ECO SWITCH NO YES DISCONNECT ECO LEADS AND MEAS...

Page 15: ...15 68 0063 3 L8104A B C D MATERIAL SAFETY DATA SHEET ...

Page 16: ...68 0063 3 16 L8104A B C D MATERIAL SAFETY DATA SHEET ...

Page 17: ...17 68 0063 3 L8104A B C D MATERIAL SAFETY DATA SHEET ...

Page 18: ...68 0063 3 18 L8104A B C D MATERIAL SAFETY DATA SHEET ...

Page 19: ...19 68 0063 3 L8104A B C D MATERIAL SAFETY DATA SHEET ...

Page 20: ...nd Building Control Home and Building Control Helping You Control Your World Honeywell Inc Honeywell Limited Honeywell Limitée 1985 Douglas Drive North 740 Ellesmere Road Golden Valley MN 55422 Scarborough Ontario M1P 2V9 Printed in U S A customer honeywell com ...

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