Änderungen an Schritt Nr. 1
Bearbeitet von Alan Nishioka –
Bearbeitung genehmigt von Alan Nishioka
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- Nachher
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Schritt-Zeilen
| + | [title] The Problem |
|---|---|
| + | [* black] The existing thermostat only used R and W wires. To turn heat on it connected R (24VAC power) to W (heating). |
| + | [* black] The Nest Thermostat has an internal battery that needs to be charged. If only two wires are connected it steals power from these lines. For some installations, it doesn't draw enough current to turn the heater on. Unfortunately, in my installation it draws too much current. |
| + | [* black] The Nest Base also uses power and steals it from two wire installations. In my case, simply plugging in the base ***''WITHOUT THE THERMOSTAT''*** was enough to activate the heater. |
| + | [* black] I had thought the Nest Base was passive and simply connected wires together. But it is not. It has a power supply, and integrated circuits, so it requires power too. |
| + | [* black] This meant the heater was always running even when the Nest Thermostat said it was not. |