Description
the DFS-243 airflow proving switch ensures precise fan interlock and heater safety without the risk of field-adjustment errors
000 BTU Monterey SRO models including the 2509622
"pressure switch stuck open" fault codes on the control board
Always verify the total amperage draw of all connected 24V components before installation
Watts 0066606 Expansion Tank Els PW 17895 the DFS-243 airflow proving switchThe Watts 0066606 (Model ETX 30) is a high performance hydronic expansion tank designed specifically for closed loop heating and cooling systems. As a veteran grade direct replacement for 0067411 and the legacy ETX 30 series, this 4. 5 gallon unit effectively manages thermal expansion by absorbing excess water volume to protect the boiler and system piping. Built with a rugged carbon steel shell and an epoxy finish, it features a heavy duty butyl