Burnham 3wfh, These are one of the few fittings that can be used with gray polybutylene plastic tubing.

Burnham 3wfh, View online or download Burnham SERIES 3 Boiler System Installation, Operating And Service Instructions View and Download Burnham SERIES 3 installation, operating and service instructions online. Floor construction should have adequate load bearing characteristics to bear the weight of the boiler filled with water. The coil pull space must be maintained at the front of units equipped with tankless coils. Check the pressure gauge; it should read about 15 psi and 190°F temperature. U. With an optional Energy Saving control package. Also for: Es2, 303, 304, 305, 306, 307, 308, 309. Qest compression fittings by Zurn can be used to connect gray polybutylene, PEX, CPVC or copper tubing in any combination. Fitting sizes listed are for the inside diameter of the tubing. BEFORE installing, read all instructions in this manual and all other information shipped with the boiler. nfk, lvlu, fpyb5, i4, lwwp, 0jb, uk6, sdffg, gd, yycomi,