Honeywell - T675B

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Contents

Honeywell T675A B AND T678A TEMPERATURE CONTROLLERS APPLICATION The T675 and T678 Temperature Controllers are designed to control the temperature of air or liquids in ducts pipes tanks and boilers Typical uses include control of dampers and valves in heating cooling or heating cooling systems The T675A has 1 spdt switch ft makes or breaks a circuit on a change in temperature at the sensing bulb Fast response models with adjustable differential are available for duct installation They respond approxi mately 4 times faster than standard models The T675B is a low limit temperature controller with 1 spst switch It breaks a circuit on a temperature fall and must be manually reset The T678A has 2 spdt switches which operate 2 inde pendent circuits ...