Renovation of an industrial development in Wheaton, Illinois. Completed plans call for the renovation of a industrial development.

LP Fueled Liquid Cooled Industrial Level Generator DuPage County Emergency Telephone System Board ("ETSB") is seeking a bidder to furnish, deliver, install, connect, test, and commission a complete, ready-for-service 25 kW liquefied petroleum (LP) fueled, liquid-cooled, single-phase 120/240V industrial level generator including weather and sound enclosure, battery, battery charger, block heater, and all associated mechanical, fuel, and electrical connections; and a new 100A Automatic Switch Company (ASCO) 300 series single-phase 120/240V automatic transfer switch (ATS). Awarded bidder shall be responsible for furnishing all parts, labor and materials needed to complete the installation in conformance with the specifications. January 13, 2026 4:00 p.m. Questions due to Buyer via email: sara.rogers@dupagecounty.gov January 14, 2026 4:00 p.m. Final Q&AAddendum Published Location Radio Tower Standby Generator Hidden Lakes Forest Preserve Southside Butterfield Road Downers Grove, East of Route 53 Building #36 Engine o Liquid cooled, spark ignited engine designed for continuous standby duty on propane. o 25 kW standby rating at 60 Hz, 120/240V single phase. o Mechanical or electronic governor maintaining voltage and frequency within industry standby limits. o Radiator and fan sized for ambient operation up to 40C; thermostatic control. o Engine meets applicable local emissions and safety standards for stationary standby use. o Electric starting system with heavy duty starter and adequate battery capacity for cold starts. Alternator o Brushless synchronous, self-ventilated, single bearing or two-bearing as recommended by manufacturer. o Class H or F insulation for industrial duty. o Solid state AVR for +-1.0% steady state regulation under varying load. o 120/240V, single phase, 60 Hz, rated for 25 kW standby at 1.0 pf. o Overcurrent and short-circuit protection integrated with controller; anti-condensation heater or space heater if required. Cooling System o Heavy duty radiator with shroud and corrosion-resistant finish. o Factory filled with extended life coolant; fill and test on site. o Rated continuous operation to 40C (or specify higher if requested). Fuel System o LP gas (propane) ready configuration. o Provide LP regulator and first stage piping from generator to customer-supplied LP source; include flexible fuel connector and shutoff solenoid. Final tie-in to site tank and LP piping by others unless specified otherwise. o Excess flow protection, solenoid valve interlocked with controller for emergency shutdown, and compliance with local fuel codes. Transfer Switch o ASCO 300 Series 100A, 120/240V single phase automatic transfer switch. o Installed inside existing shelter on west side; mounted per manufacturer torque and clearances. o National Electrical Manufacturers Association (NEMA) enclosure for indoor use, load monitoring contact, manual/auto transfer capability, provisions for generator exercise control and signal wiring to genset controller. Wiring and Connections o Provide power cable sized for 100A continuous plus inrush, cored through west wall using a fire-rated core and watertight bulkhead fitting. Terminate to new transfer switch load side lugs. o Run multiconductor control cable between genset controller and ASCO transfer switch for common start/stop and status interlocks. Provide labeled, color coded wiring in conduit. o Connect generator frame to site grounding system per National Electrical Code (NEC); provide isolated neutral or bonded neutral per system requirements and coordinate with site electrical engineer. o All feeders run in rigid or Electrical Metallic Tubing (EMT) conduit as required; support clamps and cable strain relief at penetrations. Controls and Instrumentation o Digital controller with auto/manual/remote start, runtime meter, oil pressure, coolant temp, battery voltage, frequency, voltage meters, event and fault logs, programmable inputs/outputs, and remote annunciation contacts. o High coolant temp, low oil pressure, overspeed, overcurrent, low battery, emergency stop. o Ethernet/serial remote monitoring port or cellular gateway ready interface for future remote telemetry. o Local mimic panel and display with pushbuttons for start/stop, lamp test, and fault reset. Battery, Charger, and Heater o Maintenance free lead-acid battery sized and installed per manufacturer recommendations for engine starting and system reliability at site minimum temperature. o Float/charge automatic charger sized for battery bank, with AC input breaker and status indicator. Temperature compensation optional. o 120 VAC or 240 VAC block heater rated to maintain engine startability in cold weather; thermostatically controlled and wired to a dedicated circuit or shelter power. Mechanical Installation o Concrete pad with anchor bolts; generator baseplate bolted to pad using vibration isolators. o Coordinate penetration location and routing with site; provide flexible exhaust connector and slip joints to isolate vibration. o Provide drip pans and secondary containment where required by local code.