JOHNSON CONTROLS A70HA-1C Line Volt Thermostat, 15 To 55 Deg. F Temperature

Johnson Controls A70HA-1C line volt mechanical thermostat is used in HVAC systems for temperature regulation. It is employed in commercial and industrial settings where direct control of heating or cooling equipment is required. This thermostat's mechanical design offers reliable operation without external power for maintaining comfort and controlling processes in offices, warehouses and manufacturing facilities.

Working Mechanism:

• The thermostat's sensor detects ambient temperature changes.
• It compares the sensed temperature with the set desired temperature.
• If the temperature deviates, the thermostat's internal mechanism activates.
• The thermostat's switch makes or breaks an electrical contact based on temperature.
• This contact action controls heating or cooling equipment as needed.
• The cycle repeats to maintain the desired temperature setpoint.
• The thermostat operates without external power due to its mechanical design.

Features:

• Johnson Controls A70HA-1C thermostat features a steel enclosure for improved strength and protection.
• This thermostat offers baked enamel finish to resist corrosion on exposed surfaces.
• It has a four-wire, two-circuit contact block that allows it to both regulate temperature and perform a secondary function.
• This thermostat features a contact block containing two isolated sets of contacts to close the auxiliary contact when the main contact opens.
• It is equipped with a copper hydraulic capillary bulb sensor which can be installed remotely for accurate temperature measurement and regulation.
• This temperature control unit comes with a capillary tube and sensor that monitors and regulates the temperature of the ambient air, liquid or gas at a distance away from the control.

Frequently Asked Questions:

Q. What safety precautions should I take while using this Bussmann SC-15 fuse?

A.

• Use appropriate personal protective equipment (PPE) while handling electrical components.
• Consider the correct fuse type, voltage and current rating required for the application.
• Follow manufacturer's instructions for installation and replacement.
• Avoid exceeding the fuse's voltage or current ratings to prevent overheating and hazards.
• Regularly inspect and test the fuse to ensure proper functionality.