# Mississauga 14-RTU Replacement | Toronto Commercial HVAC

> Fourteen ageing RTUs replaced building by building on Sunday crane days, with a recalculated load for each tenant space and zero tenant downtime across the si

URL: https://torontocommercialhvac.ca/projects/mississauga-industrial-park-14-rtu-replacement/
Last-Modified: 2025-01-01

Mississauga $420,000

# Mississauga Industrial Park 14-RTU Replacement Program

Fourteen ageing RTUs replaced building by building on Sunday crane days, with a recalculated load for each tenant space and zero tenant downtime across the six-week program.

Replacement of 14 end-of-life packaged rooftop units with Carrier 48TC units across a multi-tenant industrial park in the Dixie-Mavis area, including crane lifts, roof adapters, new disconnects and BAS tie-in.

![Crane lifting a new rooftop unit onto a Mississauga industrial building](/images/featured/crane-lifting-a-carrier-48tc-rooftop-unit-onto-a-m.webp)

The Challenge

## What the Building Needed

The park had 14 rooftop units between 19 and 24 years old, several on R-22, with repair costs climbing every summer. Tenants ran light manufacturing and warehousing on weekday shifts, so no unit could be down during working hours, and the landlord needed cost allocation per tenant before work started.

Our Approach

## How We Did It

1.  01 Audited every unit for age, refrigerant type, heat exchanger condition and repair history, then ranked them for replacement.
2.  02 Recalculated load for each tenant space, which right-sized three units down and two units up.
3.  03 Booked Sunday crane days and road permits, removing and setting up to four units per lift day.
4.  04 Fabricated roof adapters so new units dropped onto existing openings without roof rework.
5.  05 Wrote per-tenant cost allocation before each phase and tied every unit into the park BAS for remote alarms.

Results

## Measured Outcomes

-   14 units replaced in 6 weeks with zero tenant downtime
-   All R-22 equipment retired from the property
-   Per-tenant cost allocation signed off before every lift
-   2-year labour warranty on all installs, manufacturer parts warranty registered at start-up

> "Every lift happened on a Sunday and every tenant had their cost allocation in writing beforehand. We did not get a single complaint call during the program."

Anita Kowalczyk, Industrial Property Manager

Site Photos

## On the Job

 

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![](/images/misc/two-commercial-hvac-technicians-in-hard-hats-walki.webp)

24-Hour Commercial Emergency Dispatch

## Planning Similar Work?

Send the building details and we will walk the site, then give you a written scope, price and schedule.

Call (437) 524-2997

[tel:+14375242997 →](tel:+14375242997)

 

Request Service

[/contact/ →](/contact/)

-   TSSA G1+G2, ESA, 313A
-   Written findings every visit
-   90-day / 2-year labour warranty