Honeywell L4006A1959 Aquastat Secondary Heater Control

The Aquastat Secondary Heater Control is an immersion type device for limiting or regulating the temperature of liquids in boilers, storage tanks, and other applications where temperature control is required. A remote bulb model may be used to sense air temperature in ducts and in outside air sensing applications. It has a visible control point scale and external adjustment screw permit easy setting.

Features:

• Horizontal or vertical insertion of the sensing element
• Direct or well immersion of the sensing element
• UL limit rated device

Honeywell item number: L4006A1959