The Choice PR2n 2 channel programmer is designed for separate control of you heating and stored hot water. The heating and hot water programmes are independent of each other. This gives you the opportunity to save money and control you heating in the most energy saving manner possible.The programmer can be configured for 24 hour, 5/2 day or 7 day operation, and the flexibility of up to three on/off timings per day. Pre-programmed but can easily be changed to suit your particular lifestyle. Large and clear to read illuminated display. Attractive modern design that will suit all contemporary homes.Suitable for pumped and gravity fed systems. For fully pumped central heating systems using mid position valves, spring return valves or power open, power closed valves or Gravity hot water pumped heating systems with or without motorised valves fitted into the domestic hot water primary circuit. FEATURES 24 hour, 5/2 day and 7 day selectable2 or 3 ON/OFF periods selectable1, 2 or 3 hour boostAdvance to next programmed eventAutomatic Summer/Winter time changeStandard wall plate - simple plug in and replacePumped or gravity system selectable SPECIFICATION Power Supply: 230V AC, 50Hz Operating Temperature: 0°C to 40°C Switch Rating: 230V AC, 2(1)Amp (per channel) Contact Type: 1B , Micro-Disconnection Battery Type: Lithium Cell CR2032 Enclosure Protection: IP30 Plastics: Thermoplastic, flame retardant Insulation Class: Double Wiring: For fixed wiring only Backplate: Industry standard Dimensions: 140mm x 87mm x 37mm Clock: 12 hour am/pm, 1 minute resolution, accuracy +/- 1.5 sec/day BST/GMT time change: Automatic Program Cycle: 24hr, 5/2day or 7day selectable. Program On/offs per day: 2on/off, 3on/off selectable Program resolution: 10mins Program Selection: Auto, On all day, On constant, off Program Override: 1, 2 or 3 hour, Advance Heating System: Pumped or Gravity Complies with: EN60730-1, EN60730-2.7, EMC Directive 2004/108/EC, LVD Directive 2006/95/EC WIRING N – Neutral In (Clock)L – Live In (Clock)1 – HW Off2 – CH Off3 – HW On4 – CH On see instructions for example circuits DOWNLOADS Choice PR2n Datasheet [PDF] Choice PR2n Installation Instructions [PDF] Choice PR2n User Instructions [PDF] YouTube Video Guides