Help with HVAC/Refrigeration symbology

[staze]

Hi All,

I'm trying to repair a wine fridge, and I'm not positive about the symbology on these two mechanical thermostats. Attached are images.

I think I figured out that the triangle in the circle is the compressor, and the thing in parallel with it (connected to pin 3 on both) is a blower (this unit doesn't have one), but what is the circle with the X in it? The main difference between the two appears to just be a circle with an X through it between Line and pin 4 on the 53007.

Also, the "switch" piece, should it connect to pin 3 or pin 2 when the thermostat is on (temperature has not been reached) or off (basically, is that NC or NO)?

Thank you!

[Armadillo]

Apparently the symbol does not conform to international standard like IEC, BS. I think its a mix between the company own HVAC and Electrical symbols. I suppose the X is a light indicator.

[IanB]

I'm trying to repair a wine fridge, and I'm not positive about the symbology on these two mechanical thermostats. Attached are images.

I think I figured out that the triangle in the circle is the compressor, and the thing in parallel with it (connected to pin 3 on both) is a blower (this unit doesn't have one), but what is the circle with the X in it? The main difference between the two appears to just be a circle with an X through it between Line and pin 4 on the 53007.

Also, the "switch" piece, should it connect to pin 3 or pin 2 when the thermostat is on (temperature has not been reached) or off (basically, is that NC or NO)?

The circle with an X through it is a lamp. For instance, see here: http://www.electronic-symbols.com/electric-electronic-symbols/electric-lighting-symbols.htm

The switch operates according to the picture next to it: when the temperature goes down enough it moves from pin 3 to pin 2, stopping the compressor.

[orion242]

Circle with triangle is typically a pump, symbol below that is a fan.