# Thornhill 220-Unit Luxury Tower Water-Source Heat Pump Replacement Program | Condo HVAC Repair Toronto URL: https://condohvacrepairtoronto.ca/projects/thornhill-220-unit-heat-pump-replacement-program/ Last-Modified: 2026-10-09 Author: The Condo HVAC Repair Toronto Crew Condo HVAC Replacement | Thornhill # Thornhill 220-Unit Luxury Tower Water-Source Heat Pump Replacement Program A documented project record from Condo HVAC Repair Toronto [/ →](/) . A 1992 Thornhill luxury tower reached end-of-life on 220 original Trane Axiom heat pumps. Our 32-week rolling program replaced all 220 units with ClimateMaster Tranquility 30 chassis, including per-suite slide-out rail modifications for the slightly wider footprint. Zero residents displaced. By The Condo HVAC Repair Toronto Crew $945,000 CAD 32 consecutive weeks on-site + 1 week buffer 220 suites ![ClimateMaster Tranquility chassis staged for Thornhill program install](/images/misc/two-technicians-sliding-a-trane-water-source-heat-.webp) Project Record ## Project Attributes Scope 220 Trane Axiom water-source heat pumps replaced with ClimateMaster Tranquility 30 over 32 weeks with chassis slide-out rail modifications Price $945,000 CAD Payment 10% deposit, monthly progress, 10% retention Lead time 12 weeks (ClimateMaster manufacturer + rail modification engineering) On site 32 consecutive weeks on-site + 1 week buffer Client Condo board + reserve fund consultant (1992 luxury tower) Crew Rachel Simard (Ops Mgr) + 5-tech crew + chassis specialist + resident coordinator Equipment Trane Axiom → ClimateMaster Tranquility 30 water-source heat pumps + Belimo zone valves Neighbourhood Thornhill Building 220 suites, 1992 construction ## The Challenge A 1992 Thornhill luxury tower reached critical mass on failures of 220 original Trane Axiom water-source heat pumps. Reserve fund study flagged 2026-2028 as the replacement window. Many owners had been in-suite 20+ years. The board required a replacement program with resident accommodation that matched the Thornhill community’s expectation of discretion and courtesy. The ClimateMaster Tranquility 30 replacement chassis also needed per-suite slide-out rail modifications because of a 1.5-inch wider footprint. ### Results - All 220 units replaced on schedule across 32 weeks. - Zero resident displacement, zero commissioning failures. - Approximately 18% reduction in combined heating and cooling consumption (90-day post-install monitoring). - Board approved Phase 2 (common area + mechanical refresh) at first post-completion review. ## How We Ran It 1. 1 ### Thirty-two-week rolling install Seven units per week over 32 consecutive weeks, Monday through Thursday with Fridays reserved for punch list and buffer. 72-hour advance written notice per suite plus morning-of knock reminder. 2. 2 ### Resident accommodation protocol Fourteen residents requested specific weekday windows for cultural or scheduling reasons. All 14 accommodations honored. Resident coordinator phone line staffed Monday-Friday 8 AM-6 PM throughout. 3. 3 ### Chassis slide-out rail modification Each suite closet rail cut and re-mounted 1.5 inches wider using matching galvanized angle iron. Cardboard template confirmed clearance before cutting. New ClimateMaster chassis slid in on new rails. 4. 4 ### Per-unit commissioning Refrigerant charge verified, loop flow tested, 15-minute heat and cool cycle before sign-off per suite. Belimo zone valves and 24V thermostats replaced at the same time. On Site ## Project Photos Click any photo to enlarge it. > "Rachel ran a replacement program that respected the character of this building. The residents are long-time owners and they got courtesy and craftsmanship." Michael B., Board president, Thornhill luxury tower Related ## More Condo HVAC Projects Condo HVAC Replacement service [/condo-hvac-replacement/ →](/condo-hvac-replacement/) Condo HVAC in Vaughan [/locations/vaughan/ →](/locations/vaughan/) ![Two technicians descaling an open McQuay vertical fan coil in a Yorkville condo suite](/images/misc/two-hvac-technicians-in-navy-workwear-descaling-an.webp) Yorkville ### Yorkville 42-Unit Tower Annual Fan Coil Service Program $38,500 CAD Scope 42 coil descales + 4 pumps + 11 valves On site 3 service nights across 2 weeks Crew Marcus Chen (Ops Mgr) + 4 technicians Equipment McQuay vertical fan coils, 2001 vintage Neighbourhood Yorkville View full project record [Yorkville 42-Unit Tower →](/projects/yorkville-42-unit-annual-service/) ![Crew setting a new vertical fan coil cabinet in a Mimico lakefront condo suite](/images/misc/hvac-crew-of-three-setting-a-new-vertical-fan-coil.webp) Mimico ### Mimico 180-Unit Lakefront Building-Wide Fan Coil Replacement $186,000 CAD Scope Rolling fan coil replacement On site 14-week rolling install Crew Elena Vargas (Ops Mgr) + 2 crews Equipment Replacement vertical fan coils with ECM motors Neighbourhood Mimico View full project record [Mimico 180-Unit Lakefront →](/projects/mimico-180-unit-fan-coil-replacement/) ![Technicians sliding a Trane water-source heat pump chassis out of a condo closet in Markham](/images/misc/two-technicians-sliding-a-trane-water-source-heat-.webp) Downtown Markham ### Downtown Markham 24-Unit Mid-Rise Water-Source Heat Pump Repair $14,200 CAD Scope Reversing valves + contactors On site 6 days over one season Crew James Kowalski (Ops Mgr) + 2 technicians Equipment Trane Axiom water-loop heat pumps Neighbourhood Downtown Markham View full project record [Downtown Markham 24-Unit Mid-Rise →](/projects/downtown-markham-24-unit-heat-pump-repair/) ![](/images/misc/operations-manager-presenting-a-written-hvac-scope.webp) 24-Hour Condo Emergency Dispatch ## Planning Work Like This in Your Building? Start with a free walk-through and readings in sample suites. Your board gets a written scope, per-unit pricing and a schedule before anyone commits. Book a $185 Diagnostic [/contact/ →](/contact/) Call (437) 523-7002 [tel:+14375237002 →](tel:+14375237002) - \* Written scope before work - \* TSSA + Enbridge Red Tag + ESA + WSIB - \* Written workmanship warranty