VariTrane™ Single and Dual Duct/Fan-Powered - Maintenance
Periodic maintenance of the VariTrane™ product is minimal, but necessary for efficient operation. Routine maintenance consists of inspecting/replacing the air filters of the fan-powered terminals.
Motors: Both the Permanent Split Capacitor( PSC) and the Electrically Commutated Motor (ECM) require no lubrication during its normal life of operation.
Source: MaintainX (Community Member)