What do they mean by "The temperature dial doesn’t work"?
It seems like they might mean it doesn't control the air temperature of the HVAC, but that isn't what it is supposed to do, it's the thermostat.
If they mean it's broken, well there you go.
It seems like they might mean it doesn't control the air temperature of the HVAC, but that isn't what it is supposed to do, it's the thermostat.
If they mean it's broken, well there you go.
> The temperature dial doesn’t work, the building controls whether its heating or cooling time.
> The fluid temperature is out of our control since the building adjusts it based on the outside temperature.
It doesn't sound like the device they have available is actually a proper thermostat- rather, it's just a control device for a water heater + radiator + fan. The switch adjusts how fast air is blowing over the radiator, and the dial is supposed to adjust the temperature of the fluid in the radiator.
But if I understand correctly, the building sets their radiator fluid temperature for the whole building, and it sounds like the fan speed is apparently useless, so the only control the author has over their unit's temperature is whether or not the fan is on or off.
So, what they built is the actual thermostat, which mechanically actuates the on/off switch based on a temperature measurement.
The likely function of the dial is to set a temperature where the fan turns on and off.
http://www.pecomanufacturing.com/controls/hvac-thermostats/T...
The dial is a thermostat that reads room temperature and turns the heat source on and off accordingly.