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HomeMy WebLinkAboutAttachment 4.2 Delta HS Mechanical Improvment RecommendationDELTA/GREELY HIGH SCHOOL MECHANICAL IMPROVEMENTS Condition Assessment and Improvement Recommendations For: Delta/Greely School District P.O. Box 527 Delta Junction, Alaska 99737 February 9, 2007 De. sun n g A, 1 as,a Ai'i a DELTA/GREELY HIGH SCHOOL MECHANICAL IMPROVEMENTS Condition Assessment and Improvement Recommendations Table of Contents Executive Summary Existing Conditions Improvement Recommendations Cost Estimate ➢ Photographs By: Design Alaska, Inc. 601 College Road Fairbanks, Alaska 99701 February 9, 2007 DELTA/GREELY HIGH SCHOOL [�lEs i�n MECHANICAL SYSTEM IMPROVEMENTS /bias a EXECUTIVE SUMMARY Introduction Design Alaska has been retained by Delta/Greely School District to assess the condition of the existing heating and ventilation systems at the Delta/Greely High School and make recommendations for improvements to the systems that will improve their effectiveness, reduce required maintenance, and increase their energy efficiency. This assessment is limited to the schools heating and ventilation systems and does not address Its plumbing or fire protection systems. Design Alaska visited Delta/Greely High School on January 24, 2007, met with Maintenance Director Kent Scifres to receive his input on the schools heating and ventilation systems and toured the school with Mr. Sci res to review those systems. Original construction documents for the school are archived In the maintenance office and were used in development of this assessment. No assessment of hazardous materials was accomplished as part of this effort. The presence of asbestos containing materials that would be impacted by a mechanical renovation project is reported to be limited. Mercury is probably present in thermostats and other control system devices. Lead dust contamination has been documented, the source of which was the shooting range set up in the multi- purpose room. We have included an allowance of $350,000 in the construction cost estimate to remove and dispose of hazardous materials impacted by this project. Existing Conditions Delta/Greely High School was constructed in ten stages from 1960 through 1986. A separate heating and ventilation system was provided for each stage of construction. With minor exceptions, the existing equipment dates back to original construction. The systems have been well maintain over the years as evidenced by the fact that they are all still operational after at a minimum 20 years and in the most extreme case as long as 50 years. Improvement Recommendations The existing heating and ventilation systems are due for significant renovation. Existing heating and ventilation system equipment, though functional, are at and beyond the normal expected life for these systems. New equipment will operate more efficiently than the existing equipment, some of which is 60 years old, and will require less maintenance. A new glycol based, hydronic heating plant serving the entire school should be provided. The new heating plant should be centrally located in a new mechanical room. 600 to 800 square feet of space will be required. Centralization of the heating system equipment will make it easier to monitor and maintain. Centralization will also allow use of a single fuel oil storage tank replacing the four tanks that are currently in place. The four existing tanks, due to their age, present significant environmental risk. Use of a glycol based system will make the system less susceptible to damage from freezing particularly at ventilation system heating coils. DELTA/GREELY HIGH SCHOOL Design MECHANICAL SYSTEM IMPROVEMENTS / iaS na EXECUTIVE SUMMARY Space heating should, in general, be provided through hydronic terminal units located at the building perimeter and connected to the new hydronic heating system. In some cases, existing heating system terminal units and distribution piping can probably be retained. In those cases, the existing systems would be hydrostatically tested for leaks and repaired as necessary. Ventilation should be provided through new supply air fans located in each of the existing mechanical rooms. Return fans should be added to each of the ventilation systems to provide bettef control over building pressurization. Installation of new ventilation system equipment will allow for installation of more efficient air filters and improved indoor air quality. Heating of ventilation air should be provided through new hydronic heating coils located at each of the supply air fans and connected to the new hydronic heating system. Existing heating piping systems that are retained should be drained, flushed, and refilled with the new glycol solution. Existing heating and ventilation systems that are retained should be rebalanced. A new control system, replacing the existing pneumatic control systems, should be provided. Direct digital controls should be provided serving central heating and ventilation equipment and new space temperature controls should be low voltage electric. Domestic hot water should be provided through use of new storage tanks located at each location with an existing storage tank. The stored water would be heated using double wall insertion bundles connected to the new hydronic heating system. Existing mechanical spaces should be cleaned and repainted and should be provided with new space lighting. At several locations, work above existing corridor ceilings will be extensive necessitating complete replacement of the suspended ceilings at those locations. Estimated Construction Costs We estimate the construction cost for this project to be about $4,375,000. We have included a cost escalation allowance of 15% assuming that construction will start in spring 2009. An itemized breakdown of the estimated construction cost is included in the following Existing Conditions and Improvement Recommendation narratives. Design Aiass,:a 01 N W DELTA/GREELY HIGH SCHOOL P s Ig n MECHANICAL SYSTEM IMPROVEMENTS RI as a EXISTING CONDITIONS General Delta/Greely High School was constructed in ten stages from 1960 through 1986. A separate heating and ventilation system was provided for each stage of construction. With minor exceptions, the existing equipment dates back to original construction. The systems have been well maintain over the years as evidenced by the fact that they are all still operational after at a minimum 20 years and in the most extreme case as long as 50 years. Attached at the end of this narrative is a plan drawing of the entire school showing the mechanical spaces and the areas of the school served by each of these mechanical spaces. The dates used in the labeling of the various additions refer to the date used on the construction drawings for each of the additions rather than the actual date of construction. Existing control systems are, for the most part, pneumatic. 1960 Original Classroom Building This portion of the facility is heated and ventilated by a pair of forced air furnaces. Air is supplied to each of the spaces through underground ductwork and grills located in sills at the building perimeter- Air is returned from each space through relief ducts into the corridor and then back to the fan system. No provisions for building relief appear to have been provided. Temperature is controlled through supply air dampers, one for each space served, located in the mechanical room. The mechanical space containing the forced air furnaces also contains a domestic hot water boiler and storage tank and an abandoned domestic water treatment system with storage tanks. One of the storage tanks serves fire hose stations. Toilet exhaust is provided through an exhaust fan located in the Janitor's Closet. Fuel oil for the furnaces and the boiler is stored in a buried tank at the exterior of the facility. 1963 Classroom and Multipurpose Room Addition This portion of the facility is heated and ventilated by a pair of forced air furnaces. Air is supplied to each of the spaces through underground ductwork and grills located in sills at the building perimeter. Air is returned from each space through relief duds into the corridor and then back to the fan system. No provisions for building relief appear to have been provided. Temperature is controlled through supply air dampers, one for each space served, located in the mechanical room. DELTA/GREELY HIGH SCHOOL es i n MECHANICAL SYSTEM IMPROVEMENTS ��as tea EXISTING CONDITIONS The Multipurpose Room has been used as an indoor shooting range. A lead dust assessment was performed in 2002 and the ventilation system serving the multi -purpose room, including the supply fan and the supply and return air ductwork, was determined to be contaminated with lead dust. The kitchen is equipped with a range exhaust hood. No make-up air is provided other than the heating/ventilation air provided by the forced air furnaces. Toilet and locker room exhaust are provided through an exhaust fan located in the Janitor's Closet Fuel oil for the furnaces and the boiler is stored in a separate buried tank at the exterior of the facility. 1966 and 1969 Classroom Additions This portion of the facility is served by a pair of oil fired boilers. Space heating is provided through reheat coils in the supply air to each space and radiant floor coils at the exterior walls in spaces with exterior exposure. Ventilation air is provided through field built-up systems located in the boiler room; one serving the 1967 addition and one serving the 1969 addition. The existing systems each consist of an outside air intake, a return air intake from the adjacent corridor, a mixed air plenum, a hydronic heating coil and a supply air fan. No provisions for building relief appear to have been provided. Fuel oil for the boilers is stored in a separate buried tank at the exterior of the facility. 1974 Gymnasium Addition This portion of the facility is served by a single oil fired boiler. Space heating is provided through reheat coils in the supply air to some spaces. Convectors are provided in spaces not served by reheat coils. Finned tube radiation is provided serving the lobby. Ventilation air is provided through field built-up systems located in a fan room next to the boiler room; one serving the multi -purpose room and one serving the rest of the addition. The existing system consists of a common outside air intake, mixing plenum, and filter bank and separate hydronic heating coils and supply air fans. Underground supply and return air ductwork serve the multipurpose room. Return air for the rest of the addition comes from the adjacent corridor. No provisions for building relief appear to have been provided. The boiler room also contains a domestic hot water storage tank. Water is heated by the hydronic heating system through an insertion bundle in the tank. The locker, shower, and toilet rooms are exhausted through an exhaust fan located in Gym Storage Fuel oil for the boilers is stored in a separate buried tank at the exterior of the facility. DELTA/GREELY HIGH SCHOOL nca MECHANICAL SYSTEM IMPROVEMENTS AIR a EXISTING CONDITIONS 1975 Metal Shop and Wood Shop Addition This portion of the facility is served by the same boiler that serves the 1974 Addition. Space heating and ventilation is provitled through a supply fan with mixing box, filter, hydronic heating coil, and supply air fan located on a second floor meaanine. Radiant floor slabs are provided to offset conduction loads at the exterior walls. The wood shop is equipped with a saw dust collection system. The area originally occupied by a metal shop is no longer used as such: this space is currently used for storage. Ceiling mounted toilet exhaust fans at provided for each of the two toilet rooms included with this addition. 1977 Home Economics Addition This portion of the facility is served by the same boiler that serves the 1974 Addition. Space heating is provided through finned tube radiation controlled by a self contained control valve. Ventilation is provided through a supply fan located in the mechanical space on the opposite side of the corridor. Return air is drawn through the corridor. Supply air is tempered by a hydronic heating coil. Space temperature is controlled by cycling onloff the circulating pump serving the heating coil. No provisions for building relief appear to have been provided. Two small exhaust fans are provided. 1980 Classroom Addition This portion of the facility is served by the same boiler that serves the 1966 and 1969 Additions. Space heating is provided through finned tube radiation at the exterior walls. Ventilation air is provided through field built-up systems located in a fan room at the south end of the addition. The system consists of an outside air intake, mixing plenum, filter bank, hydronic heating coil, and supply air fan. Return air comes from the adjacent corridor. No provisions for building relief appear to have been provided. 1980 Art Room Addition This portion of the facility is served by the same boiler that serves the 1966 and 1969 Additions. Space heating and ventilation is provided through a supply fan with mixing box, filter, and heating coil located in a storage room at the northeast comer of the space. DELTA/GREELY HIGH SCHOOL Des IV1 MECHANICAL SYSTEM IMPROVEMENTS I as' a EXISTING CONDITIONS Small exhaust fans are provided for the dark room and the kiln room. A "smoke -eater" is provided to filter fumes from three exhaust hoods. 1981 Vocational Education Building This building is separated from the rest of the school and is served by independent heating and ventilation systems. The systems appear to be in relatively good condition; no specific operational problems were reported. The heating system is a glycol based hydronic system with two oil fired boilers located in the meuanine mechanical space. Terminal units consist of units heaters in shop areas, finned tube radiation in classrooms and ancillary areas, reheat coils in ventilation supplies to classrooms, and cabinet unit heaters in entryways. The ventilation system consists of exhaust and make-up air fans for the shop area, a toilet room exhaust fan, and a supply air fan serving the classrooms. 1986 Classroom Addition This portion of the facility is sewed by the same boilers that serve the 1967 and 1968 additions. Space heating is provided through reheat coils in the supply air to each space and finned tube radiation located at the perimeter walls. The finned tube radiation is installed behind casework also located at the perimeter walls. Ventilation air is provided through field built-up systems located in the storage room. The existing systems each consist of an outside air intake, ducted return air, a mixed air plenum, a hydronic heating Will and a supply air fan. Passive building relief is provided through a relief air outlet from the return air duct to the roof. The toilet rooms are exhausted through 2 ceiling mounted exhaust fans in each toilet room that discharge to the roof through common exhaust air ductwork. Domestic hot water is provided through and electric water heater located in the storage room VOCATIONAL BUILDING FLOOR PLAN I`{ Sk lftS�a-Ac=-T _'v— . f„ co���o,a q L4aa5 I � � jl I - --Y/ I£ d I J` LO < •�• VIA vt--rl Pu 1 iw« DELTA JUNCTIONrSCHOOL R F400GLyFI 1, GOYA II A I l� o o l 96 -Tn b .\ � .-•. M�.GN S2 0 01M 4k .I t'J 1 jtiEL4 jLOonA �a 1_ govv� $, �.. "._sue.. - a.a,.ao.• : '$_-1 G�.rvySRoow�.b�oS Design ,bias a DELTA/GREELY HIGH SCHOOL Design MECHANICAL SYSTEM IMPROVEMENTS 73il IMPROVEMENT RECOMMENDATIONS General The existing heating and ventilation systems are due for significant renovation. Existing heating and ventilation system equipment, though functional, are at and beyond the normal expected fife for these systems. New equipment will operate more efficiently than the existing equipment, some of which is 50 years old, and will require less maintenance. A new glycol based, hydronic heating plant serving the entire school should be provided. The new heating plant should be centrally located in a new mechanical room. 600 to 800 square feet of space will be required. Centralization of the heating system equipment will make it easier to monitor and maintain. Centralization will also allow use of a single fuel all storage tank replacing the four tanks that are currently in place. The four existing tanks, due to their age, present significant environmental risk. Use of a glycol based system will make the system less susceptible to damage from freezing particularly at ventilation system heating coils. Space heating should, in general, be provided through hydronic terminal units located at the building perimeter and connected to the new hydronic heating system. In some cases, existing heating system terminal units and distribution piping can probably be retained. In those cases, the existing systems would be hydrostatically tested for leaks and repaired as necessary. Ventilation should be provided through new supply air fans located in each of the existing mechanical rooms. Return fans should be added to each of the ventilation systems to provide better control over building pressurization. Installation of new ventilation system equipment will allow for installation of more efficient air filters and improved indoor air quality. Heating of ventilation air should be provided through new hydronic heating coils located at each of the supply air fans and connected to the new hydronic heating system. Existing heating piping systems that are retained should be drained, flushed, and refilled with the new glycol solution. Existing heating and ventilation systems that are retained should be rebalanced A new control system, replacing the existing pneumatic control systems, should be provided. Direct digital controls should be provided serving central heating and ventilation equipment and new space temperature controls should be low voltage electric. Domestic hot water should be provided through use of new storage tanks located at each location with an existing storage tank. The stored water would be heated using double wall insertion bundles connected to the new hydronic heating system. Existing mechanical spaces should be cleaned and repainted and should be provided with new space lighting. DELTAIGREELY HIGH SCHOOL MECHANICAL SYSTEM IMPROVEMENTS RyasNa IMPROVEMENT RECOMMENDATIONS At several locations, work above existing corridor ceilings will be extensive necessitating complete replacement of the suspended ceilings at those locations. 1960 Original Classroom Building Space heating for spaces with exterior exposure should be provided through new finned tube radiation or overhead hydronic radiant panels located at the perimeter walls. Finned tube radiation would be preferable but would require that existing casework at the perimeter of the classrooms be replaced. Use of hydronic radiant panels, located overhead at the perimeter of each space, would avoid replacement of the casework but may impact existing space lighting. A now cabinet unit heater should be provided serving the entry at the south end of this area. The existing furnaces should be replaced with a new supply air fan that will provide tempered ventilation air to each of the spaces. The supply air fan should be equipped with a mixing box, air filters, and a hydronic heating coil. A return air fan that would bring return air back to the fan room and a relief air opening, preferably through the exterior wall of the fan room, should be provided. Although the buried ductwork seems to be performing satisfactorily, we are concerned about its age and recommend that it be abandoned. Ventilation air should be provided through new ductwork located either above the corridor ceiling or in the soffits located at the ceiling on the room side of the corridor wall. Reheat tolls should be provided in the ventilation air supply serving each space. More than enough space is available in the existing mechanical room for the new ventilation system. The mechanical room could be partifioned into two roughly equal spaces with one space used to house the new ventilation system. The other space would be available for another use such as storage. It would be difficult to turn it into instructional space since the floor is lower than the floor level of the rest of the school Due to the abundance of space at this location, consideration should be given to having this ventilation system also serve the two classrooms and the resource center immediately to the north of this area that were added to the school as part of the 1964 addition. The existing toilet exhaust fan should be replaced with a new fan at the same location as the existing fan. Toilet exhaust ductwork can probably be retained. The existing domestic hot water boiler and storage tanks should be replaced with a new storage tank with double wall insertion bundle connected to the new hydronic heating system. The abandoned domestic water treatment system and storage tanks should be removed. The existing fuel oil storage tank should be removed. 1963 Classroom and Multipurpose Room Addition Space heating for spaces with exterior exposure should be provided through new finned tube radiation or overhead hydronic radiant panels located at the perimeter walls. Finned tube radiation would be DELTA/GREELY HIGH SCHOOL PS i�n MECHANICAL SYSTEM IMPROVEMENTS pill a IMPROVEMENT RECOMMENDATIONS preferable but would require that existing casework at the perimeter of the classrooms be replaced. Use of hydronic radiant panels, located overhead at the perimeter of each space, would avoid replacement of the casework but may impact existing space lighting. A new cabinet unit heater should be provided serving the entry at the south end of this area. The existing furnaces should be replaced with a new supply air fan that will provide tempered ventilation air to each of the spaces. The supply air fan should be equipped with a mixing box, air filters, and a hydronic heating coil. A return air fan that would bring return air back to the fan room and a relief air opening, preferably through the exterior wall of the fan room, should be provided. Although the buried ductwork seems to be performing satisfactorily, we are concerned about its age and the lead contamination and recommend that it be abandoned. Ventilation air should be provided through new ductwork located either above the corridor ceiling or in the soffits located at the ceiling on the room side of the corridor wall. Reheat coils should be provided in the ventilation air supply serving each space. Due to limited space available in the mechanical room serving this area, consideration should be given to having the new ventilation system installed to serve the original 1960 building also serve the two classrooms and the resource center next to the original 1960 building. The existing toilet exhaust fan should be replaced with a new fan at the same location as the existing fan. Toilet exhaust ductwork can probably be retained. Anew kitchen range hood and exhaust fan should be provided. A make-up air fan should be provided serving the kitchen that will operate whenever the kitchen exhaust hood operates. The existing fuel oil storage tank should be removed 1966 and 1969 Classroom Additions The existing built-up ventilation systems in the mechanical (boiler) room should be replaced with a new supply air fan. A single supply fan should be provided to serve both of the additions. The supply air fan should be equipped with a mixing box, air filters, and a hydronic heating coil. A return air fan that brings return air back to the mechanical room and a relief air opening, through the roof of the mechanical room, should be provided. Existing distribution ductwork and reheat coils can probably be retained. Reheat coil finned surfaces should be cleaned. The existing heating system boilers, circulating pumps, distribution piping, and controls should be removed. This will free up space in the mechanical room to allow for installation of the new ventilation system equipment. Consideration should be given to also serving the classrooms added in 1980 and the classrooms added in 1986 with this system; there should be space available to do so. In this case the distribution ductwork would have to be replaced. Although the radiant Floor slabs appear to be performing satisfactorily, we are concerned about their age and recommend that they be abandoned. Space heating for spaces with exterior exposure should be provided through new finned tube radiation or overhead hydronic radiant panels located at the perimeter walls. Finned tube radiation would be preferable but is the more costly of the two options since installation of finned tube radiation would require that existing casework at the perimeter of the classrooms be DELTA/GREELY HIGH SCHOOL e s n MECHANICAL SYSTEM IMPROVEMENTS Rids a IMPROVEMENT RECOMMENDATIONS replaced. Use of hydronic radiant panels, located overhead at the perimeter of each space, would avoid replacement of the casework. New cabinet unit heaters should be provided at the entries. The existing fuel oil storage tank should be removed. 1974 Gymnasium Addition The existing built-up ventilation systems in the fan room should be replaced with a new supply air fan. A single supply fan should be provided to serve both the multi -purpose room and the rest of the addition. The supply air fan should be equipped with a mixing box, air filters, and a hydronic heating coil. A return air fan that brings return air back to the mechanical room and a relief air opening, through the roof of the mechanical room, should be provided. Existing distribution ductwork and reheat coils can probably be retained. Reheat coil finned surfaces should be cleaned. The system should be rebalanced. The existing locker, shower, and toilet exhaust fan should be replaced with a new fan at the same location as the existing fan. The exhaust air ductwork can probably be retained. The existing heating system boiler, circulating pumps, distribution piping, and controls should be removed. This will free up space in the mechanical room to allow for installation of the new ventilation system equipment. The existing wall between the existing boiler room and the existing fan room will need to be removed. Existing convectors and finned tube radiation can probably be retained; finned surfaces should be cleaned. New cabinet unit heaters should be provided at the entries. The existing domestic hot water storage tank should be replaced with a new storage tank with double wall insertion bundle connected to the new hydronic heating system. The existing fuel oil storage tank should be removed 1975 Wood Shop and Metal Shop Addition The existing supply air fan can probably be retained. The supply fan should be cleaned and should be rehabilitated with new motors and new sheaves and belts. The mixing fan in the mixed air plenum should be replaced. Although the radiant floor slabs appear to be performing satisfactorily, we are concerned about their age and recommend that they be abandoned. Space heating should be provided through new unit heaters. Heating system distribution piping should probably be replaced. The existing Wood Shop saw dust collection system should be replaced with a new system. The existing metal shop exhaust fan can be removed. The toilet room exhaust fans should be replaced DELTAlGREELY HIGH SCHOOL es I n MECHANICAL SYSTEM IMPROVEMENTS 7\ias fla IMPROVEMENT RECOMMENDATIONS 1977 Home Economics Addition The existing supply air fan can probably be retained. The supply fan should be cleaned and should be rehabilitated with new motors and new sheaves and belts. The small exhaust fans should be replaced with fans of similar size. The finned tube radiation can probably be retained. 1980 Classroom Addition The existing built-up ventilation system in the storage room should be removed. This addition can probably be served by the new ventilation system proposed to serve the 1967 and 1969 additions. Existing distribution ductwork can probably be retained. Finned tube radiation and distribution piping and terminal units can probably be retained as an extension of the new system being provided to serve the rest of the facility. 1980 Art Room Addition The existing supply air fan can probably be retained. The supply fan should be cleaned and should be rehabilitated with a new motor and new sheaves and belts. The small exhaust fans should be replaced with fans of similar size. The "smoke -eater" should be replaced with an exhaust fan with exhaust air ducted to the exterior of the facility. 1981 Vocational Education Building For the most part, existing systems and equipment should be retained. The following major maintenance tasks should be accomplished to extend the life of the systems for another 20 years: • The heating system should be drained, Flushed, and refilled with a new glycol solution. • New burners should be provided for the boilers. Boilers should be cleaned and tuned. • Circulating pumps should be replaced with new pumps of equal capacity. The existing pumps should be retained for use as spares. • Fans should be cleaned and should be rehabilitated with new motors and new sheaves and belts. • The heating and ventilation systems should be rebalanced. DELTA/GREELY HIGH SCHOOL es Iin MECHANICAL SYSTEM IMPROVEMENTS �Ias a IMPROVEMENT RECOMMENDATIONS Failed insulation at the discharge of the shop exhaust fan should be replaced. • A new control system, replacing the existing pneumatic control system, should be provided. Direct digital controls should be provided serving central heating and ventilation equipment and new space temperature controls should be low voltage electric. 1986 Classroom Addition The existing built-up ventilation system in the storage room should be removed. This addition can probably be served by the new ventilation system proposed to serve the 1967 and 1969 additions. Existing distribution ductwork and reheat coils can probably be retained. Reheat coil finned surfaces should be cleaned. Hydronic heating system distribution piping and terminal units can probably be retained as an extension of the new system being provided to serve the rest of the facility. The toilet room exhaust fans should be replaced with new fans The existing electric water heater can probably be retained [lesign Aiasna cc E W N O U DELTA/GREELY HIGH SCHOOL MECHANICAL SYSTEM IMPROVEMENTS �las a COST ESTIMATE Item Quantity Units Unit Cost Cost Mechanical Demolition 80000 Sq Ft $1 $80,000 Haz Mat Abatement 1 Allownace $350,000 $350,000 Fuel Oil Tank Removal 4 Each $7.500 $30,000 Mechanical Room Addition 800 Sq Ft $200 $160,000 Fuel Oil Tank and Piping 1 Each $40,000 $40,000 Day Tank i Each $7,500 $7,500 Boilers 3 Each $20.000 $60.000 Stacks 3 Each $5,000 $15,000 Pumps 3 Each $7,500 $22,500 Mac Boiler Accessories- - - 3 Sets $10'000 $30,000 Glycol 800 Gallon $15 $12,000 Main Distribution Piping 1100 Feet $50 $55,000 Terminal Unit Branch Piping 2500 Feet $20 $50,000 Finned Tube Radiation 750 Feet $60 $45,000 Unit Heaters 4 Each $1,500 $6.000 Cabinet Unit Heaters 8 Each $1,500 $12,000 Terminal Unit Accessories 50 Sets $250 $12,500 Rebuild Supply Fans 3 Each $2,500 $7,500 Supply Fans 4 Each $30.000 $120,000 Return Fans 4 Each $7,500 $30,000 Exhaust Fans 12 Each $2,500 $30,000 Fan Room Ductwork 4 Sets $10,000 $40,000 Distribution Ductwork 750 Feet $100 $75,000 Grills and Registers 160 Each $75 $12,000 Kitchen Hood & Duct 1 Each $7.500 $7,500 Kitchen Make-up Air Fan 1 Each $7,500 $7,500 Saw Dust Collection System 1 Each $35,000 $35,000 Domestic Water Heaters 2 Each $15,000 $30,000 Open/Close Soffits for Ducts 600 Feet $20 $12,000 New Casework 750 Feet $160 $120,000 Modify Exist Piping 6500 Feet $20 $130,000 Gelling Removal & Replacement 6500 Sq Ft $8 $52,000 Clean, Paint, Light Mach Rms 2500 Sq Ft $15 $37,500 New Controls 80000 Sq Ft $4 $320,000 Balancing 80000 Sq Ft $1 $80 000 Subtotal $2,133,500 General Conditions 15.00% $320,025 Location Factor 15,00% $320.025 Overhead & Profit 25.00% $533,375 Contingency 35.00% $746,725 Escalation 1500% $320,025 Total $4,373,675 Aeasg a N L Q ca L 0 ++ 0 CL DELTA/GREELY HIGH SCHOOL Design MECHANICAL SYSTEM IMPROVEMENTS Di sga PHOTOS 1960 ORIGINAL CLASSROOM ADDITION Forced Air Furnaces Fnrced Air Furnaces DELTAIGREELY HIGH SCHOOL [1 e sign MECHANICAL SYSTEM IMPROVEMENTS A� S PHOTOS 1963 CLASSROOM & MULTIPURPOSE ROOM ADDITION `:nF�h IAut_' Forced Air Furnace Forced Air Furnace DELTAIGREELY HIGH SCHOOL Design MECHANICAL SYSTEM IMPROVEMENTS F-� i as RCa PHOTOS 1966 & 1969 CLASSROOM ADDITION i3,ile, YI & Da) I50k Ftnnp Header Fun Plenums DELTA/GREELY HIGH SCHOOL [l e s i g n MECHANICAL SYSTEM IMPROVEMENTS Aiasi PHOTOS 1974 GYMNASIUM ADDITION A Boiler Domestic Hot Water Storage Tank Pump (leader Gymnasium Supply Fan DELTA/GREELY HIGH SCHOOL e s q MECHANICAL SYSTEM IMPROVEMENTS Rids a PHOTOS 1975 METAL SHOP & WOOD SHOP ADDITION Mixing Plenum Miring Pan DELTA/GREELY HIGH SCHOOL Design, MECHANICAL SYSTEM IMPROVEMENTS /�1I d S PHOTOS 1977 HOME ECONOMICS ADDITION 1980 ART ROOM ADDITION Cnnf cols DELTA/GREELY HIGH SCHOOL Design MECHANICAL SYSTEM IMPROVEMENTS D e a S na PHOTOS 1980 CLASSROOM ADDITION Supply Fan Plenum 1986 CLASSROOM ADDITION Soppy Fan DELTA/GREELY HIGH SCHOOL [l es i g n MECHANICAL SYSTEM IMPROVEMENTS Ai as -Ka PHOTOS 1981 VOCA'1'IONAi. EDUCATON BUILDING Boilers Pump Manifold Supply Fan