Question
Download Solution PDFWhat is the name of sensing element in thermostat of bottle cooler?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFThermostat is a switch which controls the temperature of the refrigerated space by breaking or closing the electric current to the compressor motor. The parts of thermostat are as follows
- Sensing bulb (Thermal bulb)
- Capillary tube
- Bellows
- Electrical contacts
- Range screws
- Temperature differential screw (knob)
The thermal bulb or sensor bulb is connected to bellows by a capillary tube filled with volatile liquid. The bulb is clamped to the last coil of evaporator. The contact points are connected in series with the compressor.
When the temperature of the evaporator rises, rising the temperature of the bulb clamped increases the pressure of volatile liquid which causes the bellows to expand. This instigate the contact point which completes the electrical circuits and starts the compressor.
Last updated on Jun 11, 2025
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