Fontana Chrome 2-Function Thermostatic Shower Mixer FAQ
38°C Calibration, Dual-Outlet Selection & Thermostatic Valve Commissioning
This chrome concealed shower mixer combines a brass valve body,
automatic thermostatic temperature control, and two independently selected shower outlets.
How should the 38°C thermostatic reference be calibrated?
Run the mixed outlet until the temperature stabilizes, verify it with a calibrated thermometer, and reposition the control handle so the marked 38°C setting matches the measured discharge temperature.
What must be confirmed before the concealed wall is closed?
Check the hot and cold inlet orientation, secure the brass valve body at the correct finished-wall depth, and pressure-test both supply joints and outlet connections while they remain visible.
How should the two push-button shower functions be commissioned?
Operate each button independently under normal pressure and confirm positive activation, stable flow, complete shutoff, and correct routing to the overhead shower or hand shower branch.
Why should both water lines be flushed before final operation?
Flushing removes scale, solder particles, sealing compound, and construction debris that could obstruct the thermostatic element, restrict internal passages, or damage precision sealing surfaces.
