Install Instructions

Caleffi North America, Inc.
3883 W. Milwaukee Road
Milwaukee, WI 53208
T: 414.238.2360 F: 414.238.2366
Maintenance/Setting change
The thermostatic element cartridge with thermostatic sensor can be easily removed for
maintenance or set point change, without removing the valve body from the pipe if not installed
vertically (1c) or horizontally on its side (1d), as follows:
- isolate the ThermoMix boiler protection thermostatic mixing valve from the system
- if the valve is installed on a vertical pipe (1c) or laying on a horizontal pipe (1d), remove the
valve from the pipe
- unscrew the lower body plug
- take out the cartridge consisting of the spring, inner valve and thermostatic element sensor
- perform maintenance or replace the thermostatic element cartridge with the desired
replacement cartridge, fitting it in the same position
- re-assemble the cartridge consisting of the factory-assembled spring, inner valve and
thermostatic sensor inside the valve body
- screw the lower body back onto the valve body
- if the valve is installed on a vertical pipe (1c) or laying on a horizontal pipe (1d), re-install the
valve onto the pipe
- if the thermostatic element cartridge is replaced with a cartridge featuring a different set
point, apply the label indicating the new set point to the lower body plug (this label is
supplied in the spare part packaging).