I own in a high rise building that uses McQuay HCA heat pumps from around 1990. I am looking to fully replace the ones in my suite with their modern equivalent. The top reasons being the originals are excessively noisy, difficult to maintain, and inefficient. In addition, McQuay discontinued this series of heat pumps so we have no OEM support and all HVAC contractors are limited to purchasing replacement parts from aftermarket suppliers with questionable quality. Those who have done this generally found no improvement over the original and some are experiencing additional defects (e.g. refrigerant gas leaks, compressor lock outs). Knowing this I don't want to go down the "retrofit" route. I spent the better part of the last year researching possible upgrades for vertical stack water source heat pumps and came up with a list of 10 from 7 different manufacturers. Of those I shortlisted Whalen due to their large install base in Toronto. At this stage I am trying to identify new buildings that have Whalen installed so I can demo their sound performance. I am also trying to get a quote from installers to do my project but it's been difficult since they never seem to have time to sit down with me and go through the fine details (e.g. part selection, noise control, plumbing, construction schedule, etc). I am hoping it will be easier once the summer is over. Has anyone else faced similar issues with their heat pump before and how did you deal with it?