Honeywell furnace limit switch manual

Honeywell Pressure Control and Limit Cross Reference INDEX: Pages C L 32 PA 33 P 34 P 35 P 36 P 36 P 36 Competitive Autogas Cleveland Controls Detroit Switch Dewey Gas Furnace Pyronics Tridelta Industries White-Rodgers Barber Colman 39 Device to Current Pressure Pressure Manual Switch Action be File Size: KB. Let's start by asking you to have a look at the Honeywell limit switch wiring at HONEYWELL FAN LIMIT SWITCH WIRING. On by deryck baird I replaced a limit switch on an old furnace and got it working, but when i tried to tie in the thermostat through the low voltage side of the limit switch its not bringing on the furnace. components in the furnace. The basic purposes of the STA are to monitor the thermostat for heat, cool, and fan demands and run the oil burner primary control and up to a two-speed circulating fan as required. The STA also monitors a limit switch string, which energizes the circulating fan whenever the limit switch opens.

How it Works - Honeywell Temperature Fan Limit Switch Control. When the furnace heat exchanger heats up the bimetal twists causing the round dial (shown in the picture) to turn. Based on where the manual selection switch is set, when it reaches the manual setting contacts inside the switch close. Let's start by asking you to have a look at the Honeywell limit switch wiring at HONEYWELL FAN LIMIT SWITCH WIRING. On by deryck baird I replaced a limit switch on an old furnace and got it working, but when i tried to tie in the thermostat through the low voltage side of the limit switch its not bringing on the furnace. It is set to the furnace warm air temperature at which this safety switch is to turn off the oil or gas (or other) burner or heat source. On the Honeywell LB the LIMIT OFF is set to a temperature between °F and °F. From the factory this setting out of the box is °F.

Controls high limit and fan motors in forced air heating systems. Fan and limit controller. /2 in. insert. Manual fan switch that overrides the fan. Controls high limit and fan motors in forced air heating systems. Turns fan on and off according to plenum temperature via helical bimetal sensing element. Honeywell. L COMBINATION WARM AIR FAN ual fan switch which overrides the fan set FAN-OFF. HIGH LIMIT. MANUAL SCALE. MODEL SENSING ELEMENT.