McDonnell & Miller 847 Water Feeder R-410A With a fixed open temperature

With a fixed open temperature of 130 degrees F and a fixed close temperature of 90 degrees F

or flat surfaces

What is the difference between the SAN50D and SAN50S

Check the flame rod for carbon buildup

McDonnell & Miller 847 Water Feeder R-410A With a fixed open temperatureThe McDonnell & Miller 847 Make Up Water Feeder (Part Number 134300) is a mechanical float operated valve engineered specifically for boiler receiver tanks. Designed to maintain precise liquid levels, this mounting flange water feeder is rated for a maximum water supply pressure of 100 psi and a maximum vessel pressure of 25 psi. The Series 847 utilizes a high capacity feed mechanism to ensure consistent makeup water delivery, preventing dry run