If normal ambient temperature on production floor is 65-70°F, would there be noticeable effects on production floor equipment if we drop ambient down to 35-40°F? Equipment consists of motors, PLC's, VFD's, process instrumentation ie flow meters, chart recorders, level sensors/transmitters, pressure sensors/transmitters, temperature sensors/transmitters, 316 & 304 stainless steel sanitary tubing, enclosed fluorescent lighting, fire suppression sprinkler heads and any other standard food plant production equipment. The temperature would be brought down over a period of a couple of hours using a positive air flow equipment bringing in outside filtered air with burners off. Since outside air would be below freezing, inside ambient should reach 35-40°F fairly quickly. After about an 8 hour production run at the lowered temperature, we would bring back inside ambient to 65-70°F as quickly as our positive air flow equipment will allow(it is strictly outside air passing through filters then heated, no return). Is there a possibility of negatively affecting instruments or other equipment by attempting this drastic change in ambient temperature? Thank you in advance for taking the time to read and offer input.