Programmer wiring

ericmark said:
That is not a programmer, it is a thermostat and programmer combined. Where the thermostat is not built into programmer that is not required.
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Yes, but that's how this controller appears to be wired up, and so was the controller in the previously linked thread.

If there were a thermostat, it wouldn't really matter if it broke the C/H wire. It would be expected that the hot water was going to be on, regardless.
 
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