Grohe Chiara Manual Del Usuario página 6

GB
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 piping system prior and after installation of fitting
thoroughly (Consider EN 806)!
Install S-unions and fit mixer, for required dimensions, see
fold-out page I, 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].
• Before the mixer is put into service if the mixed water
temperature measured at the point of discharge varies from
the specified temperature set on the thermostat.
• After any maintenance operation on the thermostatic
cartridge.
1. Open the shutt-off valve and check the temperature of the
0.5 bar
water with a thermometer, see fig. [2].
2. Lever out cap (B), see fig. [3].
1 bar
3. Unscrew screw (C).
10 bar
4. Pull off temperature control handle (D).
1 - 5 bar
5. Turn adjusting nut (E) until the water temperature
16 bar
reaches 38 °C.
approx. 27 l/min
6. Install temperature control handle (D) in such a way that the
80 °C
button (G) facing the front.
7. Reinstall screw (C).
60 °C
8. Fit cap (B) back on.
38 °C
right
left
Temperature limitation
= 5 l/min
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).