Description
High limit, low limit and/or circulator controllers used to regulate boiler water temperature in gas- or oil-fired hydronic heating systems.
- An immersion type liquid-filled sensing element actuates two snap switches
- One switch operates as a high limit control
- The other switch operates as a low limit and/or circulator control, depending on the model
- Controller may be mounted in any positioning and needs no leveling
- Separate, easy-to-read, calibrated dial and setpoint adjustments for each switch
- Differential adjustment on low limit or circulator switch
- All adjustments accessible inside front cover
- Push-in terminals for quick connecting
- Single sensing element for easy installation
- One SPST and one SPDT snap switches act independently at respective temperature settings