Fontana Oil Rubbed Bronze 2-Function Thermostatic Mixer FAQ
Thermostatic Calibration, Dual-Outlet Control & Concealed Rough-In Testing
This oil rubbed bronze concealed shower mixer combines a solid brass valve body,
automatic thermostatic regulation, and two independently controlled shower-function outlets.
How should the thermostatic temperature control be calibrated?
Run the selected outlet until the mixed-water temperature stabilizes, verify the discharge with a calibrated thermometer, and realign the handle so the 38°C reference corresponds with the measured output.
How should the two concealed outlet branches be commissioned?
Operate each outlet control independently, confirm the correct rough-in branch activates, and verify that the inactive outlet remains isolated without pressure migration or internal cross-flow.
What supply preparation is required before cartridge operation?
Flush the hot and cold supplies independently, confirm hot-left and cold-right inlet orientation, clear construction debris, and establish balanced inlet pressure before commissioning the thermostatic cartridge.
Which concealed components require testing before wall closure?
Pressure-test the inlet unions, brass valve body, thermostatic cartridge housing, outlet-control valves, threaded seals, and both concealed outlet branches while every connection remains accessible.
