We had a building that we inherited power units that leaked
all over the floor to an extent the elevator’s would cavitate. The previous maintenance contract installed
new valves at one time many years ago and the hoses and victolic seals where all leaking. We had a few challenges for the
installation of these power units. We had the account for 5 or 6 years, it was time for new power units.
We had some challenges
There was not clear path to get the new power units into
the basement, only a 21” space between an air handler & corner of the wall.
The existing ESCO power units had a starter panel mounted
on the front of the power units
The room was filled with 2 large power units so getting the
anything in or out would be challenging.
None of the existing electrical clearances would pass today’s
NEC code.
Both elevator’s are exactly the same; same capacity, same
data plate on cross head, but… someone installed a different HP motor on one of
the motors at one time then someone else installed new solid state motor
starters to match the motors a few years later. Which one is the right horse
power? Was it changed for a specific
reason? Or was it a 4pm Friday
replacement?
Before
After
The power unit replacement went great, power units sized
correctly, machine room looks wonderful, cavitating is gone, and elevators are
running much better. Now the building
just needs a new control system to replace their 1971 ESCO elevator controller.
Power units supplied by Delaware Elevator.
Power units supplied by Delaware Elevator.
If you have any questions or would like additional
information feel free to contact me at CraigZ@colleyelevator.com or
630-766-7230 ext. 107.
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