Hardwick Elementary School Pellet Boiler Conversion

Project involves conversion from oil fired boiler to wood pellet boiler system with associated plumbing and mechanical work as well as pellet storage. All questions regarding this request for qualifications should be directed to Joe Houston, Facilities Director at (802) 472-2934 orjhouston@ossu.org Prevailing Wage Yes Bonding Required Yes *The value for this project is based on a financial range. The value is listed as the highest possible cost from the range provided by a stakeholder or official project document. The Scope of work for this project is as follows: 1. Evaluate current heating and domestic hot water (DHW) system and design new heating system featuring wood pellet boiler(s) capable of providing a minimum of 750 M Btu/hr peak output with ability to modulate output to meet lower demand. Boilers are to be fully automated and include all necessary components for communication, operation, and control, lead-lag or cascade ability, as well as integration into existing building DDC system. 2. Inspect the existing chimney and provide a report of suitability for venting wood pellet boilers. Any deficiencies identified to be remedied as a change order. 3. Provide draft schematic for project with equipment locations and work with the Owner's Representative to refine as needed to meet equipment and space requirements and restrictions. 4. Decommission one of the two existing oil-fired boilers and relocate it in the boiler room for parts/future use. 5. Remove and dispose of two existing oil-fired domestic hot water heaters. 6. Remove existing Taco air/dirt separator and replace with like-capacity Spirotherm unit with blow-down valve and drain line. 7. Terminate and seal disused oil feed lines at appropriate and safe locations. 8. Provide and install wood pellet boiler(s) with all associated piping, valves, expansion and/or buffer tanks, insulation etc. as required by design to integrate into existing heating distribution system 9. Coordinate with the School District's controls contractor to determine necessary control wiring take-off points to prioritize pellet use with remaining oil boiler for backup and to meet peak demand. 10. Install control take off points and sensor wells as required. 11. Provide and install all line-voltage wiring necessary to complete the project. Remove and dispose of any disused line voltage wiring back to the nearest service disconnect, junction box, or circuit breaker. 12. Provide School District Tech Department with any low-voltage wiring connection requirements for network connection of boilers or boiler controls. 13. Provide and install rapid-recovery indirect hot water heating unit(s) integrated into heating system and existing DHW system. 14. Provide and install all required venting for the pellet boiler system through existing chimney flue including all insulation. 15. Remove and dispose of any unnecessary existing boiler and DHW supply breaching and insulation. 16. Provide and install 9' diameter pellet storage silo with minimum 20 ton capacity at the location specified by the Owner's Representative including concrete base, excavation, parking bollards, and asphalt repair. 17. Provide and install wood pellet conveyance piping from silo to pellet boilers. 18. Provide sufficient wood pellets for initial firing and commissioning of boilers if silo fill has not occurred. 19. Secure all boiler, plumbing, and electrical permits required for this project. State and local construction permits as required will be the responsibility of the School District. 20. Coordinate and supervise the work of any subcontractors and ensure their compliance with all conditions of this RFP. 21. Commission system and provide training to District Staff on operation and routine maintenance. 22. Serve as representative for all factory warranties of pellet boilers.

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Heating, Ventilating, and Air Conditioning (HVAC), Instrumentation and Control for HVAC, HVAC Air Distribution, Central HVAC Equipment.