AboutCraig HVAC Expert Expertise I have been in the HVAC field for the past 12+ years. I can help with most HVAC questions. I work on commerical buildings for the most part, and have yet to find anything I could not troubleshoot and repair, when repairable. I work on small 1 ton units to a 2500 ton chiller. Troubleshoot air flow, elect, and control problems. I attend regular classes to keep up with the latest and greatest.
Experience I have work in the HVAC trade for the past sixteen years. I work on commerical sites, hospitals, gov't buildings. I can troubleshoot just about anything in the HVAC business.
Education/Credentials 5 years union trade school, VFD training classes, Liebert factory training, some York and Trane factory training.
Question what would be the operating pressures of a janitrol 4.5 ton ac about 12 years old w/outside temps in the 90's
Answer The pressures will fall into a range. The suction is going to be between 64-80 and the discharge is going to be 225-275. I am guessing you have an R-22 system. Keep in mind the pressures are not the only thing that determine if the unit is operating properly.
