Lift-Master 65 20 User Manual

TEFC MOTOR

MODIFICATION

66552200

FUNCTIONS

A standard door operator is provided with an Open Drip-Proof (ODP) motor. The Totally Enclosed Fan Cooled (TEFC) modification replaces the ODP motor with a fully enclosed motor for applications where the door operator is expected to be located in a harsh environment (moisture, spray, flying particles, dirt). A fan is attached to the back of the motor for cooling purposes but is not enclosed itself. May be used with all standard model T, GT, J, H, GH, SD, or GSD operators. Must be factory installed.

WIRING

Refer to the wiring diagram provided with the operator. If this diagram is missing or you are unsure of wiring requirements please call Technical Service at 1-800-528-2806.