Renovation of a military facility in Fort Benning, Georgia. Completed plans call for the renovation of a military facility.

The objective of this mechanical scope is to remove and install new HVAC equipment, including (3) Air Handling Units, (5) Make-Up Air Units, (2) pumps, and all hvac controls. The building will remain fully occupied and operational during construction; therefore, a phasing plan, any work containment plans, and temporary heating and cooling will be required. Building 2943 is used as a dining facility for the 75th Ranger Rgt. The airside HVAC equipment in the building has reached the end of its lifespan and will need to be replaced. All controls are LonWorks and will need to be replaced with BACnet. Scope of Work for Demo in B2943 1. Mechanical Demolition a. Remove all three air handling units b. Remove both chilled and hot water pumps c. Remove all five make-up air units d. Properly dispose of all removed equipment e. Remove all associated piping, supports, and accessories 2. Controls Demolition a. Remove all existing Lon controls components b. Remove all existing thermostats and sensors c. Remove existing control panels d. Remove all associated control wiring 3. Electrical Demolition Repair HVAC and Controls, DFAC, B2943 4/8/2025 Prepared by Cole Harris a. Disconnect existing HVAC equipment and pull wire back to J-Box. b. Demo all existing whips connecting the HVAC equipment. c. Demo wire and associated breaker on circuits that do not support the new equipment amperage. Scope of Work for New Work in B2943 1. Mechanical New Work a. Size for (0.4% ASHRAE design day, indoor 68_ winter, 73_summer, RH50%, 25% glycol), provide and install the following: i. ii. New Air Handlers (MZ-1, AHU-1, AHU-2, as on sheet M-3 & M-7) 1. Implement a demand control ventilation (DCV) strategy for outside air. 2. Shall be equipped with direct drive blowers. 3. Provide necessary structural support modifications. 4. Install new supply and return ductwork as required. 5. Install new flexible connections. 6. Install new drain pans and condensate piping as required. 7. Install new diffusers as required. New Heating/Chilled Water Pumps (CWP-1, HWP-1, as on sheet M-3) b. Provide, install, and integrate into the UMCS, communicating thermostats for all new equipment, equipped with i. ii. iii. Lockable Touch screen interface thermostats to be set and locked to a range of 68_F-76_F. On-board dehumidification control strategy enabled (set to 50%) CO2 Sensor iv. PIR sensors w/occupancy functions enabled v. Include all available control points, to include, but not limited to temp, room humidity points, CO2, etc. in UMCS graphics. vi. BACnet MS/TP c. Install new space temperature sensors, humidity sensors, pressure sensors, flow meters, CO2 sensors where required, and outdoor air sensors. d. Size, provide and install new DOAS units. (MAU-1 - MAU-5 as on sheet M-8) i. Provide necessary roof curb modifications. ii. Install new electrical connections. e. Reprogram/interlock controls of the DOASs to shut off the supply fan/exhaust fan and alert UMCS in the event of any failure or condition that would introduce non conditioned hot/humid air into the space. f. Perform Re-Tab of all systems. g. Provide all necessary trade work in support of mechanical. Repair HVAC and Controls, DFAC, B2943 4/8/2025 Prepared by Cole Harris h. All hard piping (domestic, heating, and chilled) and conduit shall be installed in a workmanlike manner at typical angles of 45_ and 90_. i. j. All wiring, to include low voltage and control, shall be sealed in conduit. All gas piping shall be hard piped to equipment. k. Adjust airflow for each space to achieve ASHRAE recommendations for CFM by room type. l. All refrigerant connections shall be nitrogen purged brazed joints. m. All new equipment points, and existing control points shall be brought onto the UMCS and have their graphics designed per Fort Moore's programming and graphics standards. All Controls and Graphics integration shall be brought onto the building JACE, and finally at the Niagara 4 (N4) server. All Controls and Graphics must be made visible/controllable at Fort Moore's UMCS Building 497 through the N4 server. The final "master system integration" (From Bldg. JACE to N4 Server) will require a DoD 8570 IAT Level II credentialed person with access to the server. Coordinate with NEC for CAT5 drops, ports, IP/mac address, and switch installations. n. All controls shall be BACnet MS/TP (not over IP) o. Size provide and install non-proprietary open JACE 9000 series. Total number of used device/points shall not exceed 80% of installed JACE9000 series capacity. p. Any new JACE install shall be support by uninterrupted power supply (UPS) and be protected with (TSS). q. Provide temporary heating/cooling if building HVAC will be down longer than 8hrs. 2. Plumbing New Work (Plumbing Bid Option #1) a. Install wall mounted hand wash station near west wing exit to match existing hand wash station near east wing exit. 4. Electrical New Work a. Pull wire and install new breakers for circuits that were demoed due to not supporting new equipment requirements. The new wire and breaker shall support the new equipment. 3. Testing and Commissioning in B2943 a. Pressure test all new piping systems b. Test and Clean all ductwork c. Balance all air and water systems d. Verify proper operation of all equipment e. Check all safety controls f. Measure and document system performance g. Provide testing and balancing report include any ductwork deficiencies 4. Documentation Requirements a. Submit all equipment submittal data b. Updated submittal registry with all submittals c. Provide O&M manuals for all equipment d. Submit controls system documentation e. Provide warranty information f. Submit testing and balancing reports g. Draft DD1354 at IFC interim at 75%, final at final