Infloor Thermostatic regulating unit 31093-31094 - Manual (Page 4)

∆p (m w.g.)
0
1 2 0,5 0 1,5
1
2
3
4
5
6
7
8
G (m 3 /h)
(kPa)
0
10
20
30
40
50
60
70
80
6
5
4
3
2
1
Min 1 2 3 4 5 6 7 Max
20 25 30 35 40 45 50 55 58
Position
Temp. (°C)
Temperature setting
The temperature is set to the desired temperature by using
the graduated adjustment knob fitted on the three-way
thermostatic valve.
Reference: T
boiler
= 70°C
Locking the setting
Set the knob on the desired
number, remove the screw on
the top, pull the knob off and
push it back on so that the
groove on the inside fits over
the ridge on the knob holder.
By-pass flow curves
Differential by-pass
The differential by-pass valve is used to control the head in
the secondary circuit. When the differential pressure set for
the valve is reached, the valve opens and allows fluid to pass
between the flow and return of the circuit, limiting the
differential pressure at the value set.
If the individual circuits to panels are shut-off by automatic
two way on/off or modulating valves, the valve prevents
excessive fluid velocities and the pump from overheating.
MIN
MAX
7
1
2
3
Cartridge replacement
The internal cartridge containing all the regulation components
can be inspected and replaced if necessary without the need
to remove the valve from the piping.
1) Close the hot and cold inlet shut-off valves
2) Remove the internal cartridge for inspection or replacement
by turning the nut as shown.
3) Replacement cartridges come complete with adjustment
knobs.
4) Open the shut-off valves again and set the mixing valve at
the temperature desired.
➧ Setting positions