Venstar VST4900 Thermostat 320819-301 it prevents downstream equipment damage
Baker’s notes & crumb story
Description
it prevents downstream equipment damage
Specifically built with a BJ240CS actuator and a functional junction box connection
which protects the valve stem from pitting and crevice corrosion in treated boiler water or cooling tower applications
If you notice the furnace is short-cycling or the blower fan runs continuously while the burner remains off
Venstar VST4900 Thermostat 320819-301 it prevents downstream equipment damageThe Venstar VST4900 Thermostat is a professional grade digital programmable thermostat engineered for high performance climate management in residential and light commercial applications. Serving as the primary Venstar VST2900 replacement, this Slimline Series controller handles complex HVAC configurations, including 4 stage heating and 2 stage cooling. Technicians will find the non volatile memory critical for retaining program settings during power