Z2NZ--659-24-203: Extend Chilled Water to Hospice and Audiology

2 and 43, bypassing the existing chillers in 42 and 43 during normal operation. Normal Operation (Primary from Building 31) Building 42 and Building 43 are served directly from building 31 chilled-water plant. The existing chillers for 42 and 43 are isolated and not in use. Valves and actuators shall be connected to the Building Management System (BMS) and automatically controlled for mode selection. Bypass Mode (Local Chillers in Service) Building 42: The existing chiller serves the 2" chilled-water line supplying Audiology. Glycol shall be replenished through the pot feeder. Building 43: The existing chiller serves the 3" chilled-water line supplying the building. Glycol shall be replenished through the pot feeder. New Work / Modifications Install additional pumps in Building 42 to serve the 2" chilled-water line to Audiology. Run new 4" chilled-water supply and return lines from Building 31 to Building 43. Provide emergency backup chilled-water access: Building 42: Quick-connect ports. Building 43: Bolted flange connection. All new valves and actuators shall be BMS-integrated for automatic operation and remote monitoring. Contractor Trades: Division 01 General Requirements Rig, hoist, and place pumps, long pipe runs, and large valves especially for elevated or exterior segments. Develop and execute functional performance tests for both modes, including BMS sequences, alarms, failover, and remote monitoring. Produce pre-functional checklists, FPT scripts, deficiency logs, and final Cx report. Implement Infection Control Risk Assessment (ICRA) measures near Audiology and any patient-care areas: barriers, negative air, dust control, HEPA, clean paths. Noise/vibration management during coring and pump installation; off-hours work planning if needed. Maintain life safety (egress, fire alarm impairments) and hot work permits. Mechanical/Electrical permits, right-of-way if exterior work crosses public domain, and VA safety protocols. Badging and security clearances for contractors working on campus. Division 2: Existing Conditions Hazardous materials handling for penetrations in older construction (asbestos/lead). Perform pre-work survey and abate if found. Preconstruction survey of pipe routing; locates for existing utilities; as-builts for final turnover. Division 03 -Concrete Install housekeeping pads for pumps or associated equipment in Bldg. 42. Perform core drilling, sleeves, and wall/floor penetrations; patch and restore finishes. Division 23: HVAC Install new 4" chilled-water supply and return from Building 31 to Building 43 (routing, piping, valves, bolted flange connection at Bldg. 43). Add pumps in Building 42 to serve the 2" CHW line to Audiology (set pumps, suction/discharge fittings, check valves, balancing valves). Install quick-connect ports at Building 42 and bolted flange at Building 43 for emergency backup CHW access. Provide/replace valves and actuators; isolate existing chillers in 42 and 43 for normal operation; configure bypass tie-ins. Hot work (welding/brazing), threaded/flanged connections, equipment anchorage, and system rinsing/flush. Integrate valves and actuators into BMS for automatic mode selection (Normal vs. Bypass). Provide points list, sequences of operation, graphics, and alarm/notification setup. Program interlocks between Building 31 plant and local chillers; ensure remote monitoring visibility. Coordinate network connectivity to VA systems (per IT/security requirements). Insulate new and modified CHW piping, valves, and fittings; provide condensation control and energy code compliance. Apply pipe identification (color bands, flow arrows) and valve tags. Hydronic balancing of flows for both Normal Operation (from Bldg. 31) and Bypass Mode (local chillers). Verify T, pump head/curve alignment, and distribution performance to Audiology and Bldg. 43 loads. Provide glycol supply and concentration management (both buildings use pot feeders in Bypass Mode). Test inhibitor levels, pH, and conductivity; provide documentation and labels for glycol concentration. Touch-up coatings on exposed piping and supports; ASME A13.1 compliant pipe marking and valve tags. Division 26: Electrical Provide power to new pumps, actuators, and any control panels (breakers, disconnects, conduit, wiring). Install VFDs (if specified/required for pump control), control power transformers as needed. Bond/ground all new mechanical equipment and supports; label circuits. Division 27: Communications Run and terminate BMS cabling (twisted pair, network, I/O), install field panels, power supplies for actuators. Support the controls contractor with panel mounting, device terminations, and point-to-point checkout. Division 31 - Earthwork Trenching or directional boring, routing, backfill, and site restoration (hardscape/landscape). Coordinate utility locating (public + private locates) and storm/sanitary separation clearances. Division 32 Exterior Improvements Coordinate erosion & sediment control, site concrete/flatwork restoration: asphalt cut & patch; pavement markings. List of Deliverables: 1. Project Administration Deliverables Project Schedule (Preliminary + Baseline CPM) Phasing Plan (if applicable) Site Logistics / Staging Plan Contractor s Quality Control (CQC) Plan Accident Prevention Plan (APP) Activity Hazard Analyses (AHAs) Infection Control Risk Assessment (ICRA)/PCRA coordination documentation Emergency Response Plan Daily Reports 2. Submittals (01 33 23) Submittal Register (RFI/Submittal log) Product Data for all mechanical/electrical components Shop Drawings (piping layout, hangers, valves, insulation, electrical routing, controls) Samples (insulation, labeling, coatings if any) Certifications (welders, equipment, materials) O&M Manuals (Mechanical, Electrical, Controls) Training Materials (videos, agendas, attendance logs) 3. Safety Deliverables (01 35 26) Safety Orientation Documentation Hot Work Permits Fire Watch Logs Daily Safety Inspection Reports TB Testing Records (as required by VA) 4. Quality Control Deliverables (01 45 00) Preparatory Meeting Minutes Initial Phase Meeting Minutes Follow up QC Inspection Reports Testing Reports (pressure test, chemical cleaning, flushing, electrical testing, TAB reports) Deficiency/Punch list Logs 5. Environmental Controls Deliverables (01 57 19) Erosion and Sediment Control Plan Wastewater/Dewatering Plan Noise/Dust Control Measures 6. Waste Management Deliverables (01 74 19) Construction Waste Management Plan Waste Diversion Reports (monthly or final) 7. Division 23 Mechanical Deliverables Hydronic Piping Shop Drawings Valve & Equipment Schedules Pump Submittals (curves, motor data, VFD data) Insulation Submittals Water Treatment Plan & Reports Test, Flush, and Chemical Cleaning Reports TAB Report (Final) 8. Division 26 Electrical Deliverables Panel Schedules One Line Diagrams Conductor/Conduit Shop Drawings Grounding/Bonding Submittals Motor/Starter/VFD Submittals Electrical Testing Results (megger, torque logs, breaker verification) 9. Division 27 Communications / Controls Deliverables DDC Sequences of Operation DDC Shop Drawings & Network Architecture Controls Point to Point Checkout Sheets BACnet/IP Integration Documentation Graphics Screens (ECC) Controls Acceptance Test 10. Closeout Deliverables As Built Drawings (redlines + final CAD/PDF) Final O&M Manuals (Mechanical, Electrical, Controls) Warr