Dayton 1TDU2 PSC Direct-Drive Centrifugal Blower 1/2HP 115/230V 1162 CFM w/ Dual-Speed RPM

Condition: New, open box. Dayton 1TDU2 is a direct-drive centrifugal (squirrel-cage) blower assembly using a PSC (Permanent Split Capacitor) motor and a forward-curved wheel. It’s built for dependable airflow in HVAC equipment, appliance convection, cabinet ventilation, and general-purpose air movement where a compact, integrated blower housing is preferred over belt-driven systems. The label confirms dual-voltage (115/230V) operation and free-air airflow rating of 1162 CFM @ 60 Hz, making it a strong choice for replacement and retrofit work where performance and mounting geometry must match. Key Specifications Blower  Brand / Series: Dayton Model: 1TDU2 Airflow: 1162 CFM @ Free Air (60 Hz) Horsepower: 1/2 HP Voltage: 115/230 VAC Frequency: 50/60 Hz RPM: 1320 / 1380 Amps: 50 Hz: 4.8A (115V) / 2.5A (230V) 60 Hz: 7.3A (115V) / 3.7A (230V) Thermal protector: Auto-reset (thermal protector: AUTO on warning label) Made in: China Motor  Motor type: PSC (capacitor-run / permanent split capacitor) Insulation class: B Ambient rating: 40°C Bearings: Permanently lubricated ball bearings (no relubrication required) Motor safeguard: Auto (automatic thermal protection) Motor manufacturing model: MG1404340171210 Features PSC motor design for stable torque and reliable continuous operation Dual-voltage 115/230V flexibility for different installations Auto-reset thermal protection (motor will restart after cooling) Ball bearings, permanently lubricated (maintenance-friendly) Direct-drive blower wheel (no belts, fewer wear items) Forward-curved wheel suited to typical HVAC/static pressure ranges Applications HVAC air movers in packaged equipment or custom air handlers Appliance convection (stove/heater convection blowers) where geometry matches Equipment cabinet/enclosure cooling General ventilation retrofits requiring a compact centrifugal blower Spheres of Application Commercial HVAC service and maintenance Industrial controls and electrical cabinet ventilation Appliance repair and refurbishment OEM replacement/retrofit projects Cross-Referenced Models When cross-referencing blowers, the most accurate match is by Dayton model housing orientation wheel size outlet. Common cross-reference styles include: Dayton 1TDU2 (direct model match) Related Dayton OEM blower families with similar HP/voltage/CFM (verify wheel/housing dimensions) These are the model numbers you’ll most often see tied directly to 1TDU2 as the same fit/function family: Dayton 4C831 (commonly listed as the older/discontinued model that 1TDU2 replaces) Dayton 1TDU2A (listed by multiple aftermarket sellers as an interchange with 1TDU2) Fasco 7024-0788 (very commonly cross-referenced as equivalent to Dayton 1TDU2 / 4C831) Note: Some sellers also mention “PTDU2” as a “direct replacement” naming for the same style blower assembly; treat it as a seller/aftermarket label unless you can tie it to a manufacturer datasheet. Comparable Products Comparable PSC direct-drive centrifugal blowers in the 1/2 HP class, 115/230V, ~1300–1400 RPM range Similar “squirrel cage” blower assemblies from other HVAC aftermarket lines (Packard-style, Fasco-style, etc.) when dimensions and discharge match 1) Direct-fit aftermarket “complete blower assembly” replacements (closest match) These are marketed specifically as drop-in replacements for 1TDU2 / 4C831 (same application class, similar electrical airflow, typically include PSC motor housing/wheel): NBK-20531 (aftermarket) – explicitly listed as replacing Dayton 1TDU2 / 4C831 / 1TDU2A and Fasco 7024-0788, with ~1202 CFM, 1/2 HP, 115/230V. Direct OEM aftermarket replacements sold under “interchange replacement blower” listings (same fitment set: 1TDU2 / 1TDU2A / 4C831, often also calls out Fasco 7024-0788). 2) Same “Dayton OEM replacement blower” family (confirm spec point) If you’re comparing listings, note that the airflow is often stated at different static pressures: Grainger shows ~1,164 CFM (and also lists ~1,202 CFM @ 0.000 in SP on the same family listing). Zoro lists it as 1202 CFM and explicitly notes it replaces 4C831. 3) “Comparable style but NOT equivalent” Dayton model (different performance/voltage) If you’re okay with different CFM and/or voltage, these are similar-style Dayton centrifugal blower assemblies, but not a 1TDU2 swap: Dayton 1TDT3 / 4C870 cross-reference family (commonly shown as ~559 CFM and 230V-only on cross-reference pages). Larger System Use This blower commonly serves as a subassembly inside: Air handling units / furnaces / make-up air cabinets (blower section controls filters duct transitions) Heater/stove convection systems (blower thermal switch speed control where permitted/compatible) Enclosure ventilation packages (blower inlet filter thermostat/relay) Key match points when replacing: Voltage (115 vs 230), RPM/speed requirement, outlet orientation, mounting holes, and wheel/housing fit. Related direct drive squirrel cage blower PSC blower motor assembly 1/2 HP centrifugal fan housing with forward-curved wheel dual voltage 115/230V blower cabinet cooling air mover HVAC replacement blower wheel assembly “air mover for equipment enclosure” (alternate phrasing) Common Requests: “Dayton 1TDU2 blower replacement 1/2 HP 115/230V wiring diagram” “How to wire Dayton PSC blower motor for 115V vs 230V (brown/grey capacitor leads)” “Confirm Dayton 1TDU2 rotation CW/CCW from shaft end” “Centrifugal blower 1/2 HP ~1160 CFM replacement for HVAC cabinet” “PSC blower motor MG1404340171210 specs and compatible capacitor” P127; HT9; GT00169