27th Chase Lift Station HVAC Drywell

Description

Project: 27th & Chase Drywell – HVAC InstallationLocation: Gary Sanitary District – 27th & Chase FacilityRequesting Department: Operations / FacilitiesRequested By:David L Walton Date: March 20, 20261. PROJECT OVERVIEWThis requisition is for the installation of a complete HVAC system within the drywell structure at the 27th & Chase facility. The work includes mechanical, electrical, structural, and controls integration in a high-risk, gas-prone wastewater environment.All work shall comply with OSHA, IDEM, NEC, and applicable local/state codes, including hazardous location requirements.2. SCOPE OF WORKA. HVAC EQUIPMENT INSTALLATIONInstall (1) 5-ton air handler unit with electric heat kit (equipment provided by Gary Sanitary District)Install (1) 5-ton condenser unit (provided by Gary Sanitary District)Full system integration and operational setupB. ELECTRICAL INSTALLATIONInstall dedicated 50-amp circuit for air handler heat kitInstall 30-amp electrical service for condenser unit (120/24/240 VAC)Provide and install:Electrical disconnectsBreakersSafety shutoffsControl transformers and wiringAll electrical components shall be:Explosion-proof / hazardous-location rated (NEMA compliant)Suitable for environments containing:Hydrogen Sulfide (H₂S)Oxygen-enriched atmospheresLower Explosive Limit (LEL) gasesCarbon Monoxide (CO)C. MECHANICAL & REFRIGERATION WORKInstall refrigerant line set, including:Proper sizingInsulationProtection and routingInstall condensate drain system, including:Proper slopeCorrosion-resistant pipingSafe discharge routingD. CONTROLS & THERMOSTATInstall Wi-Fi-enabled thermostat (provided by Gary Sanitary District)Complete:Low-voltage wiringControl inte