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How do I size up the cfm' I need to exhaust a couple of commercial restrooms?

You don't just want to replace a compressor with out determining why the fuses keep blowing. One option would be to install a data logger. It will track and log your voltages and amps for a few days,...

I've got a warehouse with approx. 8000 sq feet of space and 15 feet high with a 10 foot envolope to the ceiling (120,000 cubic feet) can anyone tell me how many CFM's I will need to maintain 78 to 84...

Hope everyone is well. I had a customer call me with a question that is a little above my engineering knowledge. This customer has two telecommunication cabinets in an enclosed room and is being...

I have a 6000 btu air conditioning, how do I determine the kilo watt usage per hour?

I've got an indoor fan coil M#40DG024300XJ looks like a carrier part. The condenser is a 1.5 ton heat pump and it's very old and the compressor is defective, service ports are leaking heavily and...

trying to find the tonnage of a gaffer & sattlers condensing unit, no model number or serial visible on unit or compressor. Model number of furnace (also gaffers)
2.5 ERU/C/3. anyone familiar?