Built with a robust frame for industrial and commercial longevity

Integrated Freeze Protection: Built-in frost setting prevents pipe bursts in unoccupied spaces during extreme weather

Field-verified for 50/60Hz applications

the switch must be fully functional for the system to operate

Millivolt valves like the 710-502 are designed to work solely with a thermopile/thermocouple circuit generating millivolts

Resideo TK30PV125NK Combo Trim Kit 318820-201 Built with a robust frameThe Resideo TK30PV125NK Combo Trim Kit offers a comprehensive solution for managing thermal expansion and air elimination in closed loop hydronic heating systems. This 4. 4 gallon expansion tank combo kit centers around the TK300 30 expansion tank, engineered to handle pressure fluctuations and prevent system relief valve discharge. The inclusion of the PV125NK 1. 25 inch NPT air separator is critical for high efficiency operation, as it utilizes