This makes the TD-MIXVENT series the ultimate solution for small to medium sized ventilation installations, which require a high airflow to pressure ratio and occupy only the minimum space possible. Example: false ceiling voids, cabinets and many other limited space environments. Product Features: Removable body for repair or cleaning without the need to touch the ducts. The low profile of the fans makes them the ideal product for installation with low height limits Construction The TD-MIXVENT model 100 is manufactured in tough reinforced plastic, as well as the TD fan duct connection flanges. Impellers The impeller blades are molded in tough ABS plastic. Motors Single-phase, 120V 60Hz, shaded pole induction asynchronous motor in die cast aluminum. Motor includes direct two speed connection and is also suitable for voltage speed control. Class II electrical insulation IP 44 Protection Class B Motor Insulation Safety auto reset Thermal Overload Protection (fuse type) Self-lubricating sleeve bearings. Suitable for working airstreams up to 104° F (40°C). If fan does not operate properly or is excessively noisy, check fan wiring. If unit is returned to S&P in good condition or is only in need of re-wiring and/or re-setting, there will be a minimum $20.00 handling fee along with the freight COD charges assessed at the time of return.