Saskatchewan Tenders #ECS-027-10-26

Estevan Comprehensive School HVAC Replacement, Electrical Upgrades, and Associated Structural Work

South East Cornerstone School Division No. 209 is seeking bids for a comprehensive HVAC and electrical upgrade at Estevan Comprehensive School in Estevan, Saskatchewan. - Government buyer and project team - Buyer: South East Cornerstone School Division No. 209. - 1080 Architecture, Planning & Interiors and HDA Engineering Ltd. are identified in the drawing package; 1080 Architecture, Planning & Interiors is also identified as the tender response address and design firm. - Scope of work - Replace and upgrade heating, ventilation, air-handling, hydronic, plumbing, and related electrical systems; remove or decommission designated existing equipment. - Includes controls integration with the building’s EMCS/BMS, equipment connections, air balancing, commissioning, and coordination with existing systems. - Structural work includes demolition, excavation, slabs and foundations, friction piles, structural steel, and new intake/exhaust openings. - Separate-price work includes replacing rooftop AHU-4 and kitchen make-up air unit MUA-1. - Named OEMs and specified products - Viessmann: three Vitocrossal 300 commercial condensing boilers, model CA3B 5.0. - Rosenberg: three AHU-1 supply array fans and one return array fan, with ECM motors and BACnet-capable controls. - Haakon: one each of custom AHU-2 and AHU-3; one AHU-4 is identified as separate-price work. - Captive Aire: one kitchen MUA-1, model CAS-HVAC3-1.6 85-20-15T-DOAS, identified as separate-price work. - Wilo: nine hydronic heating pumps across models IL4 45-610 4, NL-HE 6x5x10, IL3 80-620 2, IL2.5 35-280 4, and IPL2.5 23-240 4. - Daikin: scheduled heating and cooling coils, including ten 5WH1003A heating coils across listed coil tags, two 5WH0903A coils, one 5WH1202C coil, two 5WS0903A heating coils, one 5WS1303A heating coil, two 5WD1206A cooling coils, one 5WD1108A cooling coil, and one 5WD1008A cooling coil. - Other named manufacturers and specified equipment include Caleffi separator model 548250; Myers sump pumps model ME45MC-11, basins model SB24MW50, and covers model BC2S-24; Axiom Industries condensate neutralization tank model NT25 and glycol fill system model SF100; Amtrol two model 1400-L expansion tanks; Shelco side-stream filter model 4FOS1C-316-222-2MNPT-Tabs-B; Engineered Air cabinet heaters model CUH-11 and horizontal unit heaters models HUH-10 and HUH-11; Price / E.H. Price louvers and DDS dual-duct VAV boxes; Griswold Flowcon flow-limiting valves; Nexus strainers; Armstrong circuit balance valves; and Tamco Series 9000 BF insulated motorized dampers. - Notable technical requirements - Heating system requires a 30% inhibited propylene-glycol and water solution; cooling system requires a 40% glycol/water mix. - New equipment and controls must be coordinated with existing building systems; specified work includes verification, air balancing, commissioning, and maintaining positive building pressurization. - Boiler, separator, and expansion-tank specifications include stated capacities and applicable pressure, ASME, or CRN requirements. - Detailed mechanical, electrical, and structural drawings define equipment schedules, installation, and building work.

Description

SECPSD and 1080 Architecture are calling for tenders to replace the HVAC system and complete electrical upgrades at Estevan Comprehensive School in Estevan, Saskatchewan. The tender scope includes mechanical and electrical work, with tender specifications and mechanical and structural drawings provided as attachments. Contractors submitting a tender are required to attend a mandatory site walk-through on November 3, 2026, at 10:30 a.m. The response deadline is November 13, 2026, at 2:00 p.m. CST.

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