Fontana Chrome Thermostatic 3-Way Mixing Valve FAQ
Temperature Calibration, Three-Way Routing & Concealed Valve Commissioning
This concealed thermostatic shower valve combines pressure-balanced temperature regulation,
dual-handle control, a ceramic cartridge, and three-way outlet distribution.
How should the thermostatic cartridge be calibrated after installation?
The valve should be operated under normal flowing conditions and checked with a calibrated thermometer, then the cartridge and adjustable temperature limit stop should be set before the control handle is secured.
How should the three water outlets be coordinated during rough-in?
The rainfall shower, hand shower, and tub-spout lines should be individually identified, flushed, pressure-tested, and connected to the correct diverter ports before the wall is closed.
What installation depth is required for correct trim alignment?
The concealed brass valve body must be positioned relative to the final finished-wall plane so the faceplate seats flat and both control knobs engage their valve stems without excessive projection or binding.
How should pressure and temperature stability be tested at handover?
Each outlet should be operated separately while nearby fixtures are cycled to confirm stable mixed-water temperature, unrestricted flow, positive diverter engagement, and prompt thermostatic correction during supply-pressure changes.
