ABC residents trace noisy HVAC to TCHC building on Pears

The ABC Residents Association has issued a supplemental bulletin that nails down the specific cause of the annoying whine being heard by people living in the vicinity of Pears Ave. Sadly, necessary parts for the repair seem to be stalled by the pandemic. Really.

ABCRA has received confirmation that the noise is indeed emanating from the Toronto Community Housing (TCHC) building on Pears Ave. City staff has provided us with more technical details around the noise, which is coming from the air conditioning units (chillers) on the roof of the TCHC building. The noise is due to the bearings constantly failing.
During the start-up of the chillers in April, their vendor, Major Air, confirmed that there is an issue causing the bearings to fail and run really loudly. They obtained a second opinion from another vendor who confirmed what Major Air found. It was agreed that Greenwin Inc., the company that manages TCHC units, would repair chiller #1 and TCHC’s vendor, Ambient Air, would repair chiller #2. Chiller #2 is currently shut off. Ambient Air removed one pump from chiller #2 on Friday, and they are in the process of repairing the pump.

The new pumps that Major Air ordered are ground faulting pumps. This will dissipate the charge and protect the bearings and pumps. The pumps for chiller #1 were ordered last week Tuesday, May 25th. Once the new pumps arrive from the US, chiller #1 will be shut down and the pumps will be replaced. Unfortunately TCHC Staff can’t provide an estimated time for the delivery of the pumps as international shipping for parts has been affected due to COVID. TCHC advised us that they will provide an update in two weeks’ time, but unfortunately cannot accelerate the repairs given that they are waiting for these parts that are critical for the necessary work to be carried out.
As soon as we receive further updates we will let you know.
ABCRA