Infloor Thermostatic regulating unit 31093-31094 - Manual (Page 3)

Configuration with
Sepcoll served
from the right
Configuration with
Sepcoll served
from the left
0
20 40 60
80 0
20 40 60
80 0
20 40 60
80 0
20 40 60
80
T T
0
20 40 60
80 0
20 40 60
80 0
20 40 60
80 0
20 40 60
80
Thermostatic
regulating unit
code
31093
Thermostatic
regulating unit
code
31094
Thermostatic
regulating unit
code 31093
Thermostatic
regulating unit
code 31094
Operating principle
The regulating element of the three-way thermostatic valve is a
temperature sensor, which is completely immersed in the outlet
chamber of mixed water. It continuously regulates the correct
proportions of hot water from the boiler and of return water from the
panel circuit by expanding or contracting.
It regulates these flows by means of a shutter which slides in a
special cylinder located between the hot water and the water
returning from the panel circuit passage seats.
Even if the thermal load of the secondary circuit or the temperature
of the water coming from the boiler changes, the mixing valve will
automatically regulate the flow of water to provide water at the
temperature that has been set.
Construction details
Reduced pressure loss
The three way mixing valve is fitted with a special shutter which
operates in special seatings where the water passes.
It therefore guarantees high flow rates with reduced obstruction,
while maintaining accurate temperature regulation.
Replaceable cartridge
The internal cartridge which contains all the regulation components
is pre-assembled in a single unit and can be easily inspected for
cleaning or replacement if required without the need to remove the
valve body from the piping.
Anti-stick surfaces
All the functional parts, such as the shutter, the seatings and guides
have chemically nickel plated surfaces. This surface treatment
reduces the wear of moving parts to a minimum and guarantees
high performance and long life.
Low heat inertia thermostat sensor
The element that is sensitive to temperature change, the “engine”
of the three-way thermostatic valve, has low thermal inertia; it
therefore reacts quickly to changes in the temperature and
pressure of the inlet water which allows the valve to respond
rapidly.
Temperature regulation and lock device
The temperature can be set between minimum and maximum with
one turn of the control knob (360°). There is also a tamper-proof
device for locking the temperature set.
Installation