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Will return to site and check. I know bulb is making good contact because I removed bulb and heater up to check txv operation. Thanks for the help. Will check back in

Checked pressures again after box dropped from 35 degrees to 10 degrees after running for a few... 23 psi suction, 225psi head pressure. 20 degree super heat at evap coil. Total system...

Sporlan head pressure control valve
LAC 4 215
Also found a heat exchanger about 10' from rooftop condensing unit heating up suction line with liquid line between indoor and outdoor units

I have a r-404a roof-top condensing serving a walk in freezer. pressures are 235 psi head pressure and a 28psi suction pressure. Outdoor ambient is 30degress and indoor box temperature is about...

I have a fieldpiece HS36 and went thru a couple of fuses thru the years. Remove the battery and remove all the small phillips head screws on the back of the meter. The case pulls apart and you will...

added crankcase heaters, low ambient fan controls, bypass timers, hi-lo pressure switches, time delays, the works. After one month of use both the ncps and aerosys systems rattle like they are...

hvac contractor working in Nyc, mostly between 5th ave and park ave $$$$. Have found almost all equipment to be National Comfort products or Aerosys thru wall condensing systems. Compressers short...