Belimo Puts the FIT in RetroFIT with Space- Saving Solutions for Assisi Heights Renovation

Those seeking comfort will find it at “We had a very small footprint to work Assisi Heights in Rochester, Minnesota. with,” remarked Brian Ulrich, project Indoor air comfort that is, now that a manager for Control Services of Making It Fit comprehensive renovation of the Minnesota. “The radiation housing facilities HVAC mechanical system is Space can be a challenge in any would not fit any other valve.” retrofit, especially in an older, historical complete. For many years, that wasn’t There were other advantages to using building like Assisi Heights. Built in the case. Belimo for the project—diversity of the 1952 to resemble the famed Basilica of Until recently, the Sisters of St. Francis system being one of them. Multiple St. Francis of Assisi in Italy, the facility of Rochester, along with others who outputs were required for full communi- is a structural fortress with thick walls lived, worked, and taught at the cation between the various valve throughout and no vertical risers to historical convent, did so without air actuators and the Andover DDC accommodate a modern piping or conditioning and a very outdated steam system. Control Services used 2-10 control system. As a result 110 fan coil heating system. Control only existed in VDC, floating point and on/off control, units had to be installed in the very so far as the outdated, inefficient all of which Belimo could readily limited space above the ceiling in the pneumatic actuators throughout the provide. hallway of the sister’s residence. steam system, many of which were in Although compact in size, these units While the overall renovation was disrepair. An opportunity to change all had the capability of full-size AHUs. challenging, selecting the valves and this came about in 2004 when the Internal components included steam actuators for the project was not, said Mayo Clinic agreed to fund many state- radiation valves, hot water reheat Ulrich. of-the-art improvements at Assisi valves, and chilled water valves. With “Belimo has always had a retrofit Heights in exchange for use of some all this jammed into one 2’ X 2’ casing, solution,” added Ulrich, whose firm has classroom and education space at the there was no room for bulky valves or been using Belimo valves and actua- facility. actuators. Belimo’s VS and VSS Series tors for over 18 years. Central to this laundry list of improve- ball valves with dual mounted on/off Now rid of the outdated, inefficient ments was the renovation of the spring return actuators was an impor- pneumatic control system and enjoying Sisters’ residence and adjacent office tant space-saving strategy. comfortable spaces year round, the and educational spaces. Control These stainless steel ball valves, residents at Assisi Clinic can better Services of Minnesota, Inc. was designed especially for tight spaces, focus on community outreach and selected to provide and install a new provide on/off (or modulating) control healthcare ministries for which the Direct Digital Control system as well as of hot water, chilled water and saturat- Sisters of Saint Francis of Rochester rework the entire control system for the ed steam. Because of their size, the are legendary. steam and new chilled water system Belimo valves allowed Control Services that served these areas. Belimo of Minnesota to complete installation AirControls, who has a long standing while minimizing any structural altera- relationship with the Mayo Clinic, was tion to the historical home of the chosen to provide valves and actuators Sisters of St. Francis. for the new fan coils, VAVs and AHUs to be installed at Assisi. Belimo worldwide: www.belimo.com

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