Overview / Design Principle:
This unit is a compact single-switch industrial temperature controller designed to operate fuel valves or relays which start and stop heating or cooling systems. It can also be used as a limit device for sounding an alarm, actuating lights or to shut down equipment at a pre-determined termperature. Compact, flush or wall mounted (brackets included), externally adjustable set point, available in twelve optional ranges within -30°F to 1100°F. UL and CSA listed.
Operation:
Temperature is set by turning the large, easy to handle setting knob on the front of the instrument to the desired point on 200 angular degree semi-circular scale.
Expansion and contraction in the sensing element moves the switch-actuating lever through a simple mechanical linkage. Optional weather resistance accessory (Acc 243) is available. Adaptionof Acc 243 provides for inverted mounting and special gasketing for resistance to normal outdoor climate conditions.
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