Overview Reviews Product Description 220-240V, 50/60 HZ. 30 SEC POSTPURGE. 5 SEC PILOT STABILIZATION PERIOD. USE W/ST7800A.Honeywell Process Solutions products are only available in some markets. Please call for more information. Product Videos Custom Field Product Reviews (No reviews yet) Write a Review Write a Review × Honeywell Honeywell EC7850A1080/U Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name *Email *Review Subject *Comments