Fontana Chrome 2-Function Thermostatic Mixer FAQ
38°C Calibration, Dual-Outlet Control & Thermostatic Valve Commissioning
This chrome concealed shower mixer combines a solid brass valve body,
automatic thermostatic temperature regulation, and two independently controlled shower outlets.
How should the thermostatic control be calibrated at the 38°C index?
Operate the mixer until the water temperature stabilizes, measure the outlet temperature at the marked 38°C position, and realign the control handle if the measured value differs from the index.
How should the two shower outlets be assigned during concealed rough-in?
Route and label each outlet branch for its intended shower function, then confirm that each individual control activates the correct overhead shower or hand shower before wall closure.
What supply preparation supports consistent thermostatic regulation?
Flush the hot and cold supply lines, connect them to the designated valve inlets, and maintain balanced operating pressure so the thermostatic cartridge can respond accurately to changing conditions.
Which concealed components require testing before waterproofing?
Pressure-test the inlet connections, brass valve body, thermostatic cartridge housing, function-control seals, and both concealed outlet branches while the complete assembly remains accessible.
