Twin City Fan (TCF) Centrifugal Square Inline Fan – Model DSI, 20" – w/ Motor, Springs, Damper & Hardware, NEW

Overview
Surplus, never-installed TCF Centrifugal Square Inline Fan – Model DSI. This is a heavy-duty, belt-drive inline fan assembly designed for high-pressure/ high-volume HVAC and process ventilation. Unit appears unused and comes with the factory hardware, spring isolators, a backdraft damper, transitions, and the printed IM-4205 installation/operation manual (see photos).
What’s included
• TCF Model DSI centrifugal square inline fan housing (approx. 20 in. inlet/ wheel class)
• Factory-mounted belt-drive motor & sheave set (nameplate present; buyer to verify voltage/HP)
• Spring isolator kit (blue springs) & mounting hardware
• Backdraft damper (boxed)
• Inlet/outlet round transition pieces
• Printed TCF IM-4205 manual
• Assorted fasteners as shown

Condition
• Physically clean with only minor storage marks.
• No duct residue, no corrosion—looks never used.
• Sold as surplus, untested; guaranteed to arrive as described.

Typical features (per DSI series)
• Square inline, double-width, single-inlet centrifugal design
• Belt-drive for flexible speed/CFM selection
• Galvanized steel construction for HVAC or light industrial service
• Suitable for ducted supply, return, or exhaust; mount in any orientation with isolators