Click to expand Tap to zoom R27 - 2 Zone Programmer Programmers [Pre 2023] by EPH CONTROLS SKU R27 R27 – 2 Zone Programmer [Pre 2023] 2 zone programmer with 3 operating modes – 24h, 5/2d & 7 day. Perfect for controlling 2 zones in a central heating system. PRODUCT CODE - R27 SWITCH OUTPUT - 230Vac PRODUCT WARRANTY - 5 Year SCREEN DIMENSIONS - 100 x 35mm Download R27 Installation Instructions R27 Operating Instructions Accessories