Why Did My Cooling Coil Freeze? Top Ten Reasons

Last January’s two-week arctic blast brought temperatures that only reached single digits during the day and dipped below zero at night. The extreme weather sorely tested HVAC and plumbing systems, and PJM was inundated with service calls. Parts and equipment that usually aren’t affected by cold weather – cooling towers, plumbing lines, heat exchangers, etc. – were freezing and breaking all across our area, and AHU coils were particularly hard hit. Repairing broken coils (if they can, indeed, be fixed) can be tricky and time consuming, and coil replacement is a considerable task that can be extremely expensive. Ten Reasons Why a Cooling Coil Might Freeze: Water, sludge, or debris inhibiting

PJM Custom Fabrication Helps Expedite Projects

A rooftop air handling unit had failed at a central New Jersey hospital, and rapid replacement was urgently needed. A new unit was located and a PJM installation crew was ready for dispatch, but the roof curb posed a problem. A standard factory curb adapter would take at least ten days to arrive, and a rush order would take five days at significant added cost. PJM’s solution: we custom-fabricated a curb adapter in our full state-of-the-art sheet metal shop, and the entire installation was completed within 72 hours, start to finish. In addition to our sheet metal shop, PJM has an onsite pipe and weld shop, and both are fully-staffed by expert fabrication professionals. We custom fabricate a v

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 1688 5th Street | Ewing, NJ  08638 | Tel: 609.921.1394 | Fax: 609.530.1437

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