honeywell st799 7 day electronic programmer
|Price (ex VAT)
|Price (inc VAT)
ST799 7 Day Classic Programmer
The ST799 time control programmer can be used as a replacement programmer on gravity, primary or fully pumped systems. The ST799 offers a flexible 7 day programme. The front panel of the programmer will fit to the same backplate.
Programming the timing sequence is straightforward, using the top slider switch and [+] and [-] buttons. Please note it is recommended that, in order to comply with Part L1 Building Regulations central heating systems should be upgraded to fully pumped with a fully independent programmer e.g. ST9400C.
-Compact size, easy to operate
-Suitable for surface or switch box mounting
-Built-in battery back-up
-One or two On/Off periods per day
Fixings Included: Yes