Honeywell ST699

Product Information

So, for example, if you set your heating to come on at 5pm and go off at 10pm, but only want hot water on from 6pm to 7pm. The ST699 is an electronic central heating time control programmer that can be used on gravity primary, or fully pumped systems having separate heating and hot water temperature control. Programming the timing sequence is straightforward, using the top slider switch and [+] and [-] buttons.

Connect L and N, 6 on old connects to 3 on new back plate, 3 on old connects to 4 on new back plate.We're sorry but this product has now been discontinued by Honeywell Heating Supplies and can no longer be purchased. To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. You can change your choices at any time by visiting Cookie preferences, as described in the Cookie notice. Whilst system delivers Heating and Hot Water, it will not deliver Hot Water when HW only is selected (despite green LED being illuminated) i. This is currently controlling a Honeywell S plan system - CH and DHW (and has done for ages) with absolutely no probs on a Worcester system oil boiler.

If this is the first time you have used PayPal Credit, you will be asked to complete a short application form to apply for PayPal credit.My system comprises 8 year old Bosch Worcester boiler, Drayton MA1 Mid level valve, new Honeywell DST90E room therm. The programmer is suitable for surface or switch box mounting and comes complete with a built-in battery back-up. Just looking for something as low cost as possible that I can control via the internet connection if I'm away from the home. Simply remove the front panel, where the circuit board and controls are, and pop the new panel back on.

We find the physical slider switches so much easier to use than having to press a couple of buttons repeatedly for the various functions. The ST electronic dual zone timer is used to control gravity,primary or fully pumped central heating systems requiring a single 24 hour programme with two ON/OFF periods per day. So i will also need to move the programmer when i upgrade it, but im not sure what cable to use to extend the length. before it packed in and I didn't think I would find a suitable switch for the wall but this was perfect. The Honeywell ST699 is an excellent product when new, but over the years the settings back-up battery fails so that if there is a power cut -off only for seconds, the settings have to be reset.it fitted the hole perfect, was exactly the right make and fit and works brilliant plus it looked very smart. As I had not checked the part when it was delivered I was expecting a lot of hassle to get it changed. We are sorry but the office had been closed over the Christmas period which would reflect why there had been none of our usual communication.

We had the wiring diagrams for both units, and we carefully worked out where the different wires went. The 103 third parties who use cookies on this service do so for their purposes of displaying and measuring personalized ads, generating audience insights, and developing and improving products. Bought this as a replacement for the same unit which had burned out (I suspect following a number of power cuts in the area). When I examined the old control unit, I noticed the battery inside was dead and leaking so badly that the connection to the circuit board had corroded and loosen off. The programming sequence for the ST699 is straightforward, using the top slider switch and [+] and ['] buttons.The front control unit has spring loaded contacts to the base plate, so you don't even need to do any rewiring. Yes, there are cheaper, more up to date timer controls available but what you are paying for is ease of replacement. The engineer scheme is here to support you and your clients, simply save yourself time and money on finding parts and gain access to our massive catalog of over 110,000 parts.