3 zone control pack comprising of 1 no. 3 channel programmer, 3 no. 2 port motorised valves, 2 no. room thermostats, 1 no. pipe/cylinder thermostat and a wiring centre. Also options for unvented cylinders. Hardwired pack c/w 1 x R37-HW- 2 x CM2- 1 x WRP- 1 x WC2 & 3 x V221P
