![Watts Industries Isomix-HC Installation And Operating Manual Download Page 6](http://html.mh-extra.com/html/watts-industries/isomix-hc/isomix-hc_installation-and-operating-manual_877275006.webp)
6
ISOMIX HC-IM-DE-W-DE-10-2018-Rev1_enUS | Art. No. 10070436
EN
ENGLISH
5 Function
The set value for the flow temperature, determined by the
heating controller using the current external temperature
and the heating curve, is monitored continuously by the flow
sensor. If there are temperature fluctuations, the controller
causes the 3-point actuator to open or close the valve, or to
maintain the valve position when the set value is reached.
The hot water fed in from the primary circuit via the valve
is mixed directly with the water from the underfloor heating
return. The mixed medium is distributed by the pump to the
heating circuit manifold and from there to the connected
heating circuits.
The underfloor heating flow temperature can be seen on the
heating controller.
There is a non-return valve between the primary feed and the
return connection on the mixer valve, which prevents a short-
circuit in the primary circuit.
6 Installation and commissioning
Electrical energy!
Risk of death from electric shock.
• Work on parts carrying live voltage must
be carried out by qualified electricians
only.
• Disconnect the power supply of the
system and secure it to prevent it from
being switched on again before carrying
out any installation, maintenance, cleaning
or repair work.
The installation and commissioning of
the Isomix must be carried out only
by trained personnel who have been
authorized by the manufacturer.
When repairing the unit or replacing
parts, be sure to observe the specified
installation positions and flow directions
of the parts being replaced!
Material damage!
Pressure shocks may occur if the stop
valve is opened or closed quickly.
• Always open and close the stop valves
slowly and in a controlled way.