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J-. <br />� <br />t� <br />.� <br />� <br />� <br />r <br />� <br />� <br />1� <br />�r <br />1� <br />1s <br />�� <br />� r� <br />�� <br />17 <br />'I E5 <br />9� <br />�G <br />�i <br />2� <br />�� <br />�� <br />2� <br />�� <br />�� <br />�� <br />�� <br />�[� <br />31 <br />�� <br />�� <br />3� <br />��3 <br />��� <br />3� <br />3� <br />��� <br />�� <br />�7 <br />�� <br />�� <br />�� <br />�� <br />�� <br />�; <br />�� <br />��1 <br />�� <br />Roseville Skating Center and City Mall <br />Feasibility Study September 23, 2007 <br />�. �� ����i� T���lc� ���Idtn� <br />The Public Works Building is comprised of two existing buildings that were connected <br />with the addition of a new vehicle maintenance center that was constructed in 2003. The <br />total area of the existing buildings and the new building is approximately 62,600 square <br />feet. The four sections of the building include: <br />4 An existing maintenance garage at the north end of the building of <br />(approximately 12,400 square feet) <br />� A new vehicle maintenance garage connected directly to the south side of the <br />existing norfh garage (approximately 31,000 square feet) <br />A new public works office and meeting room area connected to the south side of <br />the new vehicle maintenance garage <br />* An existing maintenance garage at the south-east end of the building <br />(approximately9,920 square feet) <br />The new office area and meeting rooms are heated and air conditioned using five roof- <br />mounted heat / cool units. Natural gas is burned to provide heat and electricity powers <br />the compressors to provide cooling. A gas make up air unit preheats fresh air provided <br />to this area. <br />The maintenance garage areas are heated with gas-fired infra red heaters suspended <br />from the ceiling. Fresh air is supplied to the maintenance garage areas with gas-fired <br />make up air units. In the two older sections of the building the make up air units are <br />located inside the building with roof top vents. In the new section of the maintenance <br />garage three roof-mounted make up air units provide fresh air. <br />2.4. Fin� Hall <br />The fire hall includes several offices and meeting rooms in addition to a parking garage <br />for three emergency vehicles. The garage area is heated with gas-fired infra red heaters <br />suspended from the ceiling. Roof mounted gas / electric provides heating and cooling for <br />the rest of the building. <br />�_ ENE}��1� �OF,I�U�RTI�A1 DF FX��ll�l� �Y�T��1� <br />The buildings on the Roseville City Hall Campus use natural gas and electricity to <br />provide space conditioning and refrigeration. Each of the buildings is designed with an <br />individual,free standing mechanical system. <br />The buildings are designed for a wide variety of uses. The City Hall / Public Safety <br />Building are mainly office space. The Maintenance Garage and Fire Hall t�1 are primarily <br />used for vehicle maintenance and storage. The (ce Arena f Banquet Hall is used for <br />recreation and large events, and the building associated with the speed skating oval is <br />primarily used for maintenance and to house the large refrigeration mechanical room. <br />The variety of building uses on the campus provides an opportunity to take advantage of <br />a diversity of building loads. The refrigeration system in the ice arena operates almost <br />year round, and is constantly rejecting thermal energy to the outside air through an <br />evaporative cooling tower. <br />Gev-�erc�y Systems Page 5 of 33 <br />