matthew0582 Posted September 11, 2016 Share Posted September 11, 2016 are all thermostats universial? Link to comment Share on other sites More sharing options...
AngryChris Posted September 11, 2016 Share Posted September 11, 2016 No. Generally, your older style Dixie Narco can machines use the same thermostats but new DN machines use different thermostats. Royals have a different control. Vendos have theirs. My understanding is that it depends on the control board. However, you can switch out a refrigeration deck on a 501T with a 501E, regardless of what kind of board (or no board) they have. Yet, the thermostat is supposed to be different. To my knowledge, the difference between a 501E tstat and a 501T tstat is with an additional part that can be interchanged. Link to comment Share on other sites More sharing options...
rmorris1953 Posted September 11, 2016 Share Posted September 11, 2016 Basically yes technically no. Older Dixie Narco vendor (pre E modles) used what was a temp control that was used in a tube that reacted to actual temp. Then they moved on to what is called air over temp control. The pre E models had a coiled capillary tube at the end of the temp control. A samll amout R-12 was in the tube to sense the temp in order to turn the compressor on/off. Now they use ones without the coil and it is filled with 134. When replacing temp controls no matter what it is on if it is a manual control I use these. Even on older machines. I take the end of probe and route it to the front of evaporator the bend it so it sits about an inch away from the center of the evaporator and not touching it. Set the control at 4 1/2. I have done this with all makes. Link to comment Share on other sites More sharing options...
matthew0582 Posted September 11, 2016 Author Share Posted September 11, 2016 Its on a wittern combo. Wittern says you must use their thermostat with the coiled end just wasn't sure they are trying to sell me one of theirs. Link to comment Share on other sites More sharing options...
rmorris1953 Posted September 11, 2016 Share Posted September 11, 2016 They always want an arm and a leg. Suzo Happ has the cheapest Dixie cold controls that I have found. Personally, I would try a Dixie cold control and place the probe like I mentioned above. Just don't turn it up much to start with. Maybe 2 and then go up after you see how it reacts. I only say this because I work on many different pieces of equipment. Time is money and equipment don't make you money when down. I can't wait on snail mail or companies who don't respond fast enough. It cost lots of money to stock OEM parts that you may not ever use. When I respond to a service call I have the parts on hand in most cases to repair it. Fan motors same way. When I order fan motors I make sure the ones I get have mounting brackets that allow them to be mounted different ways. Some only allow them to be mounted from the rear. 1 hour ago, matthew0582 said: Its on a wittern combo. Wittern says you must use their thermostat with the coiled end just wasn't sure they are trying to sell me one of theirs. Link to comment Share on other sites More sharing options...
AZVendor Posted September 11, 2016 Share Posted September 11, 2016 3 hours ago, matthew0582 said: Its on a wittern combo. Wittern says you must use their thermostat with the coiled end just wasn't sure they are trying to sell me one of theirs. You should always use a USI thermostat on a USI machine due to the length of their cap tubes, the coiled end and the sensitivity of the settings which never can go above 2. Link to comment Share on other sites More sharing options...
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