Boiler Replacement for Recreation Center Pools

1.Remove and dispose of the (3) old Lochinvar boilers and unnecessary piping. 2.Disconnect and lockout natural gas and electrical connections. 3.Provide, design and install a system with the following: 4.A redundant 2 boiler (main and back-up) system with the main boiler being a 95% high efficiency unit; we require pricing for a 5 to 1 ratio unit. 5.Manual isolation valves to be installed so that each piece of equipment can be removed or drained without affecting system operation. 6.Drain ports and temperature/psi gauges to be provided at the direction of the State for normal maintenance and operation. 7.The system will need to operate using a Grundfos Magna 3 pump via a clean loop to the boiler and its buffer tank. Utilizing three 3-way actuated valves leading to 3 titanium heat exchanges sized for each body of water, heat each pool appropriately. 8.We need a design engineered system with appropriate BTU sizing for our 3 water bodies (old BTU sizes are listed below). Laars boilers are preferred. Grunfos Magna 3 pumps with Honeywell controls for actuated valves. Heat Exchanges with Titanium plates. 9.Contractor shall follow all applicable Federal, State, and Local building codes. Contractor responsible for scheduling State Boiler Inspection and filing all associated paperwork. Owner responsible for inspection fees 10.Start system and confirm system functionality. Balancing of system flow as required for pool operation. Test all safety devices. 11. Work will need to be completed during our building annual closure starting on August 21st, 2022. An example of this system is currently operating at the City of Longmont’s Centennial pool. The Centennial system is heating the pool water at a temperature of 83 degrees, the poolpak which heats the ambient air temperature to between 81 and 85 degrees, and the domestic water and the storage tanks to a temperature of around 160 degrees. Carbon Valley also currently runs a similar system, but has domestic water and 3 pools served by its system. The Longmont Recreation Center system will need to heat the following: 1. Lap: 178,311 Gallons, Circulation flow of 751 GPM, Operating Temperature of 82 degrees, 990,000 BTU 2. Leisure: 75,300 Gallons, Circulation flow of 1255 GPM, Operating Temperature of 86 degrees, 750,000 BTU 3. Spa: 2,129 Gallons, Circulation flow of 141 GPM, Operating Temperature of 101 degrees, 300,000 BTU

Division 23 -

Heating, Ventilating, and Air Conditioning (HVAC), Heating Boilers.