Converting A Single-Family Home Into A Triplex With Zuba Central For Cold Climates
The Challenge
Place de L'Escarpement: LEED Gold Certified
Located in a new commercial development near the major freeways of Québec City, the designers of Place de L'Escarpement aimed for a LEED GOLD certification. To achieve such high level of expectations, the developer needed a reliable HVAC system that would optimize energy efficiency while providing their occupants advanced control over thermal comfort. By installing capacities of nearly 4 million Btu/h of City Multi Water-Source systems, the building now serves simultaneous heating and cooling using geothermal energy over its 148,000 sq. ft. of floor space. From a combination of geothermal, heat recovery and lighting fixtures, this office building is designed to reduce energy consumption by more than 55 percent compared to the reference model building based on CMNEB standards. The amount of energy saved annually will be able to provide electricity to 110 standard single family homes each year. Place de L'Escarpement is the largest geothermal installation in Quebec City and is also one of the top 10 most efficient buildings in its class in Canada.
The Solution
| Outdoor unit | BC Controller | Indoor Unit | Controllers | ||||
|---|---|---|---|---|---|---|---|
| Qty | Model Name | Qty | Model Name | Qty | Model Name | Qty | Model Name |
| 39 | PQRY-P96TGMU-A | 23 | CMB-P1010NU-G | 53 | PDFY-P06NMU-E | 10 | G-50A-J |
| 2 | PQRY-P96TGMU-A | 4 | CMB-P1013NU-G | 112 | PDFY-P08NMU-E | 300 | PAC-SE51CRA-J |
| 1 | PQRY-P96TGMU-A | 3 | CMB-P1016NU-G | 31 | PDFY-P12NMU-E | 7 | PAC-YG60MCA-J |
| 1 | PQRY-P96TGMU-A | 6 | CMB-P1016NU-GA | 2 | PDFY-P18NMU-E | 48 | PAR-21MAA-J |
| 1 | PQRY-P96TGMU-A | 2 | CMB-P105NU-G | 1 | PDFY-P30NMU-E | ||
| 6 | CMB-P106NU-G | 1 | PDFY-P48NMU-E | ||||
| 2 | CMB-P108NU-G | 4 | PEFY-P15NMHU-E | ||||
| CMB-P108NU-GB | 75 | PEFY-P18NMHU-E | |||||
| 40 | PEFY-P24NMHU-E | ||||||
| 9 | PEFY-P27NMHU-E | ||||||
| 9 | PEFY-P30NMHU-E | ||||||
| 34 | PEFY-P36NMHU-E | ||||||
| 6 | PEFY-P48NMHU-E | ||||||
| 1 | PKFY-P12NGMU-E | ||||||
Frequently Asked Questions
How can geothermal HVAC provide simultaneous heating and cooling in a commercial building?
A water-source HVAC system can be configured to provide simultaneous heating and cooling using geothermal energy. At Place de L'Escarpement, nearly 4 million Btu/h of Mitsubishi Electric CITY MULTI Water-Source systems serve 148,000 square feet of office space.
How much can a high-performance commercial building reduce energy consumption?
Energy savings depend on the complete building design. At Place de L'Escarpement, the combination of geothermal energy, heat recovery and lighting fixtures was designed to reduce energy consumption by more than 55 percent compared with the CMNEB reference model building.
What HVAC features can support LEED Gold goals in an office building?
An HVAC design that emphasizes energy efficiency, reliable operation and advanced thermal comfort control can support broader LEED goals. This project uses Mitsubishi Electric CITY MULTI Water-Source systems with geothermal energy to provide simultaneous heating and cooling.