Is this a 2 pole or 4 pole motor? it should say the rpm on the motor plate.
It should not be able to run any faster than it is capable of on 60hz, this is what decided the rpm, not the connection.
Hook it up to 220 the way the digram shows and check the off load current.
The symbols are star (wye) and delta for the triangle.
The 220 appears to be both delta windings in parallel.
Al.
CNC, Mechatronics Integration and Custom Machine Design
“Logic will get you from A to B. Imagination will take you everywhere.”
Albert E.