Change Order No. 1 - PW Service Center Roofing Proj No R124-032B - Slatile Roofing

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et VIKUL vaired, �WPYI%Afjte? n� Plarmbing • Heating • Air Conditioning • Boilers Commercial • Residential • hiditstrial April 30, 2025 Slatile Roofing & Sheet Metal Co. Attn: Ken Hoy 1703 S. Ironwood Dr. South Bend, IN 46613 Re: A/C System Replacements Dear Mr. Hoy: We are pleased to quote you on the work associated with the replacement of the air conditioning systems for AC-1 and AC-4, as well as the furnaces associated with AC-4, on the site of the City of South Bend Traffic & Lighting Building at 731 South Lafayette Boulevard in South Bend, Indiana. To provide clarity to our quotation, all items are laid out in a start -to -finish work sequence. We propose to perform the following: • Disconnect and remove the existing Carrier twinned vertical cased coils from furnace systems AHU-1 and AHU-4 and discard off -site. o All utilities will be taken back to a point suitable for reconnection. • Disconnect and remove the existing humidifiers and discard off -site. o All utilities associated with the humidifiers will be demolished and removed. The water lines will be permanently capped to prevent future leaks. • Disconnect and remove the twinned furnaces for system AHU-4 and discard off -site. • Modify the existing return air base for AHU-4 as required to accommodate the new furnaces. • Furnish and install two (2) Carrier 96% efficient, 60k BTU furnaces for system AHU-4 and set on the original return air plenum base. o Carrier Furnace M#: 59SC6A060M17-16 • Furnish and install two (2) Carrier twinned, cased vertical coils with thermal expansion valves (TXV's) and set on top of the new and existing furnaces. o Carrier Coil M#: CAVTCOIL408A00 • Furnish and install two (2) Carrier 7.5 Ton, 460V/30, single circuit condensers with two -stage compressors and set on the wood supports on the roof. o New wood supports furnished and installed by Slatile. We will add additional wood supports on top of these to support our new units as needed. o New units are to be hoisted to the roof by Slatile when they are setting the other existing units. • Furnish and install all applicable sheet metal as required to build new supply air transition pieces to connect between the new cased coils and the existing supply air ductwork. • Furnish and install 1%" thick x %# density foil faced fiberglass ductwrap on the new supply ductwork transition pieces and tie-in to the existing duct insulation. • Furnish and install 2" Schedule 40 PVC pipe with DWV pattern solvent welded fittings to connect the new furnaces to the existing furnace 2" intake and exhaust pipes. • Furnish and install Schedule 40 carbon steel pipe and fittings to connect the new furnaces to the existing furnaces. • Furnish and install Schedule 40 PVC pipe with pressure pattern solvent welded fittings to connect the new furnaces and cased coils to the existing condensate piping system. ,10E VqUI�r 1011 South Michigan Street • South Bend, IN 46601 Phone: (574) 289-6351 • Fax: (574) 289-3755 OQ ® www.ejwhiteinc.net Licensed— Bonded— Insured IN License #CP81021273