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Subject to change without prior notice
EN
TEMPERATURE SENSOR INSTALLATION
INSTALLATION IN A SOCKET
BALL VALVE INSTALLATION
The thermal energy meter is equipped with two digital probes that comply with the MID 2014/32/EC
directive and the EN1434 standard.
The HYDROCAL-M4 is equipped with dedicated sections for the measurement of thermal energy of a
heating/cooling circuit and the volume measurement given by the domestic hot and cold-water meters.
The meter is suitable for domestic applications with two-pipe systems, in a thermal power plant or any
other compatible application.
For a correct installation, always proceed in compliance with the directives prescribed by current
regulations.
In the standard version (e.g mounting on return pipe), the return probe is already incorporated inside the
brass case. The supply probe must be installed in a ball valve or in a socket mounted on the flow pipe
and complies with the requirements of the sensor itself.
Vice versa, the version for installation on the inlet pipe the probe inserted inside the brass case will be
the flow, the return probe will need to be installed in a valve or a socket on the return pipe.
For a correct temperature measurement, the tip of the probe must be in the center of the pipe. In
addition, the axis of the probe must be perpendicular to the pipe axis (see figure).
The temperature sensor must be sealed when the installation is complete.
Before installing the ‘free’ probe (the one not inserted in the meter case), it is necessary to intercept
the flow (close the ball valve or the appropriate shutters).
1. Screw the socket in the pipe
2. Insert the temperature sensor
3. Tighten the screw
1. Insert the probe into the threaded nut
2. Insert the closing pin
3. Unscrew the valve closing screw, and place the seal
4. Insert the probe by screwing it on the thread
4. Functionality
