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...ect - Consider the case where HW cylinder has attained temperature and the programmer subsequently removes the call for HW. With the published wiring, this would

* controls fault? - programmer, thermostats etc * programmer?

...un-standby button. You can't control the unit from inside the house, so no programmer or thermostat.

...systems are relatively easy to extend. The first option uses the existing programmer / time switch, but adds an additional conventional thermostat for the new z ...re is no real difference between something described as a time switch or a programmer for a heating system. The purpose of the device is to pre-set at what times

...for a changeover tank stat, and a "hot water not required" output from the programmer). Regardless of the position of either switch, AC will be supplied to the m

* Programmer and room thermostat

# Set the [[Central heating operation|programmer]] to OFF for both CH and [[Domestic Hot Water|HW]]. The programmer was set back on and [[inhibitor]] was put in the CH header tank (the little

...emp setpoints at different times, and include all the fuctionality of a CH programmer except hot water control. [[image:IMAG2030-2 CH programmer.jpg|right|175px|Programmable thermostat]]

...eheating times are restricted to certain times of day (i.e. via a CH timer/programmer or immersion timeswitch)

...ter cylinder in the upstairs airing cupboard, a 3-way diverter valve and a programmer-timer for a 7-day cycle.

...ases of the cycle - filling and draining, and with various clicks from the programmer as expected. Only the drum was not turning. Listening to the machine sugges

...day morning, it is feeling a bit nippy. I glanced at the main VR470 stat / programmer / weather compensation control in the hall, expecting it to tell me all was

: A combined programmer and thermostat that allows different temperatures to be set for different t ;Programmer