Hi... after we've reached 80 degrees + on the west side, we cool until everybody goes home... west side never makes less than 75. I'd guess we have about 350-400 gallons online. Radiators are on the perimeter and they are not steam but just hot water. Yes we chill through the radiators and...
Hi 317069... I'd guess 2250 sf of radiators. I'm told by our maintenance chief that if the controls\sensors\valves etc. we're in place and working properly as in automation, we wouldn't have issues. I think he's right except for: we lack water volume to make the system perform optimally; we...
Hi 317069... depends on temp, but if its say 34 degrees, it will take about 15-20 mins with only 1 boiler since we only go from 55 to 65 degrees. Heating is not an issue... just cooling after heating. We did discover today that we have additional piping that was put in with the steam boiler we...
Thanks for responding, Drazen... the reason it takes so long is that our maintenance staff starts at 6am guessing the weather during spring & fall. As I stated, we have only one shared main line for heating\cooling. Whenever it's decided (in advance) to begin cooling and we've been heating...
Thanks for responding...
There are many factors that contribute to manual switching from heating to cooling. The system as been whacked on to the point that very little is auto-controlled. The buildings shell is very bad, we have valves that are uncontrolled and sensors that are faulty. I...
I'm charged with making a 1960's HVAC system more efficient. I'm focusing on our 50,000 sq ft 2-story main building: 2-gas fired Hurst water tube boilers (3600 mbtu's each), 1-steam boiler, 2-rooftop chillers... but only 1 line for both heating and cooling. Because the system has been...
