Honeywell ST699

Product Information

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.

Yes, there are cheaper, more up to date timer controls available but what you are paying for is ease of replacement. Bought this as a replacement for the same unit which had burned out (I suspect following a number of power cuts in the area).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. If you are unsure on the parts we have a technical team which can assist you at any time during the working day.

The ST699 is a 24-hour dual zone timer that is designed to replace the programmer on both gravity primary systems and fully pumped systems, with separate heating and hot water temperature controls. My system comprises 8 year old Bosch Worcester boiler, Drayton MA1 Mid level valve, new Honeywell DST90E room therm. 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.before it packed in and I didn't think I would find a suitable switch for the wall but this was perfect. 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. The front control unit has spring loaded contacts to the base plate, so you don't even need to do any rewiring. 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. You can change your choices at any time by visiting Cookie preferences, as described in the Cookie notice.

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.The HONEYWELL ST699B1002 ELECTRONIC PROGRAMMER 230V - Now Use 4201085 is a genuine, brand new Honeywell Heating Supplies product, covered by a Honeywell Heating Supplies manufacturer's guarantee.