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Application
Surface mounted thermostatic mixers are designed for
hot water supply via pressurized storage heater and
utilized in this way provide the best temperature
accuracy. With sufficient power (from 18 kW
or 250 kcal/min) electric or gas instantaneous heaters
are suitable.
Thermostats cannot be used in connection with low
pressure storage heaters.
All thermostats are adjusted in the plant at a flow
pressure on both sides of 3 bar.
If temperature deviations should exist due to special
installation conditions, then the thermostat is to be
adjusted to the local conditions (see Adjustment).
Specifications
Minimum flow pressure without
downstream resistances
Minimum flow pressure with
downstream resistances
Max. working pressure
Recommended flow pressure
Test pressure
Flow rate at 3 bar flow pessure
Max. water temperature at hot water inlet
Recommended max. stored
temperature (energy saving)
Safety check
Hot water temperature at supply connection
min. 2 °C higher than mixed water temperature
Cold water connection
Hot water connection
Minimum flow rate
At a flow pressure over 5 bar it is recommended that a
pressure reducing valve be fitted in the supply line.
3
Installation
Flush pipes thoroughly!
Install S-unions and fit mixer, for required
dimensions, see fold-out page II, Fig. [1].
1. Install the S-unions and sleeve, preassembled with
the escutcheon.
2. Screw-mount the mixer and check connections for
leakage.
3. Push the sleeve with escutcheon onto the union nut.
4. Screw the escutcheon flush against the wall.
Refer to the dimensional drawing on fold-out page I.
Reversed union (hot on right - cold on left).
Replace thermoelement (A), see replacement parts
fold-out page II, ref. No. 47 657 (1/2").
Adjustment
For temperature-adjustment, see figs. [2] and [3].
0.5 bar
• Before the mixer is put into service if the mixed
water temperature measured at the point of
1 bar
discharge varies from the specified temperature set
on the thermostat.
10 bar
• After any maintenance operation on the thermostatic
1 - 5 bar
cartridge.
1. Open the shutt-off valve and check the temperature
16 bar
of the water with a thermometer, see fig. [2].
approx. 20 l/min
2. Lever out cap (B), see fig. [3].
80 °C
3. Unscrew screw (C).
4. Pull off temperature control handle (D).
60 °C
5. Turn adjusting nut (E) until the water temperature
reaches 38 °C.
38 °C
6. Install temperature control handle (D) in such a way
that the button (G) facing the front.
7. Reinstall screw (C).
8. Fit cap (B) back on.
right
left
= 5 l/min
Temperature limitation
The safety stop limits the temperature range to 38 °C.
If a higher temperature is desired, the 38 °C limit can
be overridden by pressing the button (G).
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