IOM, DIAGRAM,STANDARD WIRING | Greenheck Parts About Greenheck Parts. Menú IOM, DIAGRAM,STANDARD WIRING. Greenheck Part # 457298. IOM, DIAGRAM,STANDARD WIRING. This part is now obsolete. No replacement part available, please consult factory. California Residents - Prop 65 Warning. Can't find what you were looking for? Visit Greenheck[PDF] information page number. Vari-Green Motor - Greenheck-USA Wiring 1. All high and low voltage wiring connections are made inside the motor control box at the factory. Normally, there is no reason to enter the control box of the motor. If there is a need to enter the control box, disconnect power and wait at least five minutes to allow the capacitors to discharge. 2.