A three channel programmer for use in a 3 zone central heating system. Designed to operate hot water, central heating and a 3rd zone. Its functions include frost protection, holiday mode, boost and summer/winter changeover. Configurable for 5/2 day or 7 day programming. Complete with 1 year battery backup which retains program and time settings (replaceable lithium cell CR2032 battery).
|Manufacturer Part Number||PR3-C|