How to Calibrate a Johnson Controls T4002 Pneumatic Thermostat
Ғылым және технология
Follow along as Steve Smith from Edgemont Precision Rebuilders shows you how to calibrate a Johnson T4002 Pneumatic Thermostat.
www.eprinc.net/product/johnson-t4002-pneumatic-thermostat/
Пікірлер: 8
Hello,Mr Smith do you have any books or C.D. For HVAC Controllers, Pneumatic . Thank you
Where can you find the threaded gauge adapter?
@Mosin-lf7wl
3 ай бұрын
The part number is JC 5310 test gauge (a jci part), good luck finding one.
@therandomchannel6103
3 ай бұрын
@@Mosin-lf7wl I did actually end up finding one about 2 years ago got lucky where I bought it only had two left in stock
Greetings Thank you for the video I run an old building that has half of the T4002 and the other with some really old thermostats that are not labeled. The gauge you use and the fiting, what size is that? If I go to the store to get a gauge and tube what size should I pick up? Thanks again
@aaronchambers6889
5 жыл бұрын
I should have clicked on the link. I have in my building as well as the T4002 the Brass pneumatic thermostats. Do you have a video on how to calibrate those too?
@aaronchambers6889
5 жыл бұрын
Class 1 Direct Action July 8, 1924
First of all, you want the ambient air temperature, not any surface temperature. A regular digital thermostat is better than the laser for this reason. Just have it as close to the T-stat as possible. Second of all, speak up! We're not in the room there with you. It seems like you're on something.