If the display shows Error 09 or 15

it is not a dedicated A/C cooling relay

a specific LP conversion kit must be utilized to prevent over-firing

Durable Construction: Stamped galvanized steel housing and stainless steel components withstand corrosive flue environments

McDonnell & Miller 847 Water Feeder Els PW 29614 If the display shows ErrorThe 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