thermostats reach in coolers

[Russ57]

Not to threadjack but are all tstats suited for both applications? I just worked on two different lab refrig's. Both had danfoss kp71/060L2010 controls. One had the bulb in the return air stream and one had it wedged in the coil.

I suspect the one wedged in the coild might not be mounted as it was intended.

[Charles1010]

Coil sensing type. For reach in I agree. Expecially with high usage.

[jpsmith1cm]

As to coil or air thermostat, why not use both..........?

Cuz nobody wants to PAY for two sensors or two controls....



If your unit is $2 cheaper than the other guy's unit, you aren't getting the sale.

Make 'em cheap, make 'em cheaper, make 'em cheapest. Screw serviceability, longevity and, quality, just keep the price down.

[itsiceman]

Fan cycling can be done for a number of reasons, but primarily for energy savings. How much is saved in a small reach in is debatable but in walk-in coolers and freezers it can be significant.

On the small ones the guys are talking about they run a larger than "normal" fan and the refrigeration has been down sized through the years.
Turning them off puts less heat into the box. The big motor is a design problem now where it used to be a bennifit

I've seen some mech tstats that have a nc no connection and they run a two speed motor on slow in the off cycle.
Seems a lot better than turning them completely off if you don't have a smart box controler like a KE2
I think it was Bally