Delta Hotels Toronto is one of the largest, most luxurious hotels in Canada and is rated as one of the most sustainable. Delta commissioned an upgrade of one of their existing pumps to a new Design Envelope Tango. Energy savings post-installation have proven that the Tango pump was the right choice.
Savings from upgrading just one pump will be over $2200 per year. Total energy savings will be 22,000 kWh: A 40% efficiency improvement.
Armstrong maps each individual pump’s hydraulic, motor and inverter variations at the factory to achieve exceptional accuracy throughout the flow range.
With this calibration, Armstrong Design Envelope pumps also serve as flow meters, providing reliable system
flow data (+/- 5%). The testing ensures optimal performance efficiency at start-up, while Armstrong’s Pump Manager helps maintain and extend efficiency throughout the pump’s operating life.
Quick Stats
Facility type: Hotel
Location: Toronto, Canada
Size: 47 floors, 567 rooms
Power consumption savings: 40%
Annual cost savings: $1,700
Annual CO2 reduction: 18,335 kg CO2
Equipment
- 10 Design Envelope 4300 pumps
- 2 Design Envelope DualArm pumps
- 7 conventional pumps
- 9 circulators • 6 expansion tanks
- 2 Design Envelope booster packages
- 13 plate/frame heat exchangers
Key Outcomes
- All variable speed pumps installed are sensorless
- Significant cost savings achieved, with no vfd site wiring/mounting, no differential pressure sensors to install, no line reactors required, and lower commissioning costs
- Significant operating cost savings, with optimized part-load operation using a quadratic control curve, and selection optimized against load profile
