For Low Temperature Heating Zones Controlled by 3-Way Thermostatic Mixing. Use in closed loop design. Flow up to 860 L/min (3.8 USgpm).
K33-Low Temperature Module with 3-way Thermostatic Mixing Valve Product Specification
F33 - Installation & User Manual
Low temperature zone modules F33 equipped with adjustable thermostatic actuator. The F33 is designed to provide constant supply temperatures to the radiant system.
Depending on the geographic location of the installation, periodic adjustments to the temperature may or may not be necessary.