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McQuay – Singer HCA Replacement Condo Heat Pump
$4,490.00
Starting at:
Omega HCA replacement chassis unit is an ideal replacement and upgrade for the old McQuay HCA water-source heat pumps that were commonly installed in Toronto high-rise condominiums and commercial buildings’ heating and cooling systems.
Every home is different. We’ll confirm your installation cost!
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The McQuay / Singer HCA Replacement Chassis is a direct-fit, drop-in solution for aging HCA vertical stack water-source heat pumps that were commonly installed in Toronto high-rise condominiums and commercial buildings.
At 4Most Energy, we supply and install Omega HCA replacement chassis that match the exact dimensions, riser connections, and electrical configurations of the original McQuay/Singer units — ensuring fast, clean, and professional replacements with no drywall or plumbing modifications.
Each unit comes factory-charged with R-410A refrigerant and features modern compressors, safety controls, and quiet operation, making it the perfect retrofit for older condos and commercial spaces.
Comparison Chart – Omega HCA
| Omega Model | Replaces Existing HCA Model* | Nominal Size (Tons) |
|---|---|---|
| RPC-MC-HCA-030 | HC090A | 3/4 |
| RPC-MC-HCA-040 | HC120A / HC140A | 1 |
| RPC-MC-HCA-060 | HC200A | 1 ½ |
| RPC-MC-HCA-080 | HC230A | 2 |
* Only units without electric heat
NOTE: Replaces existing electrical box and controls with Omega electrical box kit.
Features
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Direct Drop-In Fit:
Exact match for existing McQuay and Singer HCA cabinets — no alteration to risers or control boxes. -
R-410A Refrigerant:
Replaces outdated R-22 systems with an environmentally friendly and energy-efficient alternative. -
Quiet Operation:
Enhanced sound insulation and vibration isolation make it ideal for condos and occupied suites. -
Built-In Safety Protections:
Includes high/low pressure switches, condensate overflow protection, and water coil freeze sensors. -
Plug-and-Play Electrical:
Connects directly to your existing harness and control board — no rewiring required. -
Durable Construction:
Heavy-duty galvanized steel and corrosion-resistant coating ensure long service life. -
Warranty:
Backed by 1-Year Labour Warranty and 5-Year Compressor Warranty from 4Most Energy.
Omega HRP Condo Heat Pump Replacement FAQs
What type of buildings use the McQuay / Singer HCA heat pump?
HCA vertical stack heat pumps are typically found in high-rise condominium towers, office buildings, and mixed-use commercial spaces.
These systems use a central water loop to provide both heating and cooling through individual suite heat pumps — making them efficient and space-saving.
The Omega HCA replacement chassis is a direct-fit solution for these water-source systems, ideal for retrofitting existing condos in the Greater Toronto Area.
What makes the Omega HCA replacement ideal for high-rise and condo applications?
Designed for vertical stack systems with no demolition or pipe cutting required
Uses modern R-410A refrigerant for high efficiency
Delivers quiet operation — ideal for residential condos
Offers plug-and-play compatibility with existing McQuay wiring and risers
Backed by professional installation and warranty coverage from 4Most Energy
How do I know if my condo or building has a McQuay / Singer HCA system?
Check the model tag on your existing heat pump — typically located behind the front return air grille.
If the label says McQuay HCA, Singer HCA, or Daikin-McQuay, your unit qualifies for a direct Omega HCA replacement.
Not sure? 📸 Send a photo of your unit to 4Most Energy via WhatsApp, and our condo HVAC expert will confirm it for you.
How can I request a quote for my condo or commercial building heating and cooling system?
Simply take a photo of your existing heating and cooling systems’s model label (behind the return grille) and send it to 4Most Energy via:
WhatsApp: 📲 Chat with 4Most Energy
Online Form: Submit your details on our website
Our technicians will verify the model, confirm the compatible Omega HCA replacement, and provide a detailed quote, usually the same day.
What kind of warranty and support do I get?
Every Omega Enerzone replacement installed by 4Most Energy includes:
1-Year Labour Warranty
5-Year Compressor Warranty
Parts coverage from Omega
Post-installation system check and testing
We also provide maintenance plans and priority service for condo corporations and property management companies.
What areas does 4Most Energy Condo & High-Rise HVAC serve?
We proudly provide Omega Enerzone heat pump replacements, installation, and maintenance across the Greater Toronto Area, including:
🏙️ Downtown Toronto, North York, Vaughan, Mississauga, Markham, Richmond Hill, Scarborough, Etobicoke, and surrounding communities.
We specialize in:
Condominium retrofit projects
High-rise and commercial building systems
Water-source heating and cooling solutions
Why choose 4Most Energy for your condo heat pump replacement?
✔ Specialized in Condo & High-Rise HVAC Systems
✔ TSSA-Certified installation technicians
✔ Local GTA expertise — we understand condo mechanical systems and by-laws
✔ Fast, clean installations with minimal disruption
✔ Full post-installation testing and warranty coverage
