Shenandoah Valley Westminster-Canterbury (SVWC) is a senior living community based in Winchester, Virginia providing a spectrum of quality care services for residents. Community members enjoy a multitude of activities and amenities living at SVWC. Having opened its doors in 1987, leadership decided additional buildings and renovations were needed for its campus. In particular, the buildings needed to be able to keep warm efficiently during cold winter temperatures. After assembling a project team with mechanical contractor, Blauch Brothers; engineer, CJL Engineering; and distributor, APG, SVWC selected Mitsubishi Electric CITY MULTI Variable Refrigerant Flow (VRF) for its upgraded HVAC system. Below we speak with our own Bill Warner on why VRF was the right fit for the campus.
Why was VRF selected for SVWC?
Their campus is located in one of the colder regions of Virginia. Comfort and reliability were important features leadership was looking for. While traditional 4-pipe systems offer comfort when designed properly, the lack of comparable efficiency, the initial expenditure and the life cycle costs associated with maintaining water chemistry, cleaning towers, compressor rebuilds and burner maintenance made those systems less desirable. Once we explained the operation and maintenance of Mitsubishi Electric’s 2-pipe system, the best choice was obvious.
How did you address SVWC’s request for cold-climate heating performance?
We specified Mitsubishi Electric’s Hyper-Heating INVERTER® (H2i®) CITY MULTI units. This is not your grandfather’s heat pump. With average energy efficiency ratios (EERs) around 14.5 and integrated energy efficiency ratios (IEERs) now approaching 30, these systems still provide heat at -22 °F and make a real statement about heat pump heating performance.
As for the design of the system and correctly sizing loads for year-round comfort, we used Mitsubishi Electric’s selection software, Diamond System Builder (DSB). Unlike other manufacturers and representatives that use only nominal capacities during selection and just hope to meet performance needs, we can correctly de-rate for design-day and installed conditions. Climate, actual pipe lengths, indoor mixed air and outdoor conditions all affect the performance of any HVAC system. VRF is no different. By using the DSB software to match sensible and latent loads under a number of given scenarios, you can easily provide personalized comfort.
How does APG stand out compared to other distributors?
We strive to be more than your typical manufacturer’s representative. We are driven by the desire and determination to offer thoughtful energy-efficient solutions to our clients and partners. On every project, including our work with SVWC, our goal is to solve our customers’ problems with personalized service from start to finish.
METUS Equipment Installed:
- (2) PUMY S-Series Outdoor Units
- (7) PURY R2-Series Heat Recovery H2i® Outdoor Units
- (2) PLFY-P 4-Way Ceiling Cassettes
- (79) PEFY Ceiling-Concealed Ducted Indoor Units
- (3) PFFY Floor-Mounted Indoor Units
- (66) Simple MA Remote Controllers
- (4) PKA Wall-Mounted Indoor Units