Bunny Laroche
New Member
Hello, we have an outdoor reset module installed with its wired connected to our Westinghouse 80k BTUh boiler's O/S connections on its terminal block. A measurable voltage can be observed on these contact points. We assume this voltage equates to a temperature at which the boiler would operate if it was running with gas turned on. However, we also have a TT connection on the Taco Zone Controller connected to the boiler's terminal block at the appropriate TT connections. When my girlfriend puts the two zone's thermostat's into their test mode we observed that the Zone Controller opens the appropriate Zone Valves as well as the two circulators. However, there does not appear to be any measurable voltage observed on the TT connections. Is this because the boiler's outdoor sensor is present and connected? But my girlfriend said she still expected to measure a voltage on the Zone Controller's TT connections and is baffled why no voltage is present on these connection points at the Zone Controller when the Thermostats are calling for heat and the Controller does indeed open the Zone Vales and start the circulators.