Overview Product Videos Reviews Product Description Circuit board assembly for the Overhead Door RHZ commercial operator. 1 Phase, 115/230V, 1/2 hp. Product Videos Videos Hide Videos Show Videos Initial Set Up Programming for Standard or Heavy Duty Commercial Operator In this video we will walk you through the initial set-up prog... Product Reviews Write a Review Write a Review × CIRCUIT BOARD KIT - 1PH, 115/230V, 1/2HP Review Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments * Recaptcha: