| 摘要 |
A central heating control system includes a control panel 6 housing a timer 12. The timer 12 has three programme sequences for controlling three groups of radiators (TU1 to TU9) each group being independently controlled. The control panel (6) also includes switch units (32 to 66) which are selectively operable to isolate each radiator (TU1 to TU9). The switch units (32 to 66) are triggered by infrared signals transmitted by a portable control unit 8. The signals may be received directly by the panel 6 or indirectly through spaced windows 80 to 84 coupled to the control panel by an optical fibre network. The system provides an exceptionally convenient method of modifying a programmed heating system. <IMAGE> |
