Technical Data; Temperature Limitation - Grohe 27 032 Manual

GB
Application
Thermostatic mixers are designed for hot water supplies from
pressurised storage heaters and offer the highest temperature
accuracy when used in this way. With sufficient power output
(from 18 kW or 250 kcal/min), electric or gas instantaneous
heaters are also suitable.
Thermostats cannot be used in connection with unpressurised
storage heaters (displacement water heaters).
All thermostats are adjusted in the factory at a flow pressure
of 3 bar on both sides.
Should temperature deviations occur on account of special
installation conditions, the thermostat must be adapted to local
conditions (see Adjusting, Calibration.

Technical Data

• Minimum flow pressure:
• Max. operating pressure:
• Recommended flow pressure:
• Test pressure:
• Flow rate at 3 bar flow pressure
- head shower:
- hand shower:
• Max. water temperature at hot water supply:
• Recommended max. flow temperature
(energy economy):
• Safety stop:
• Hot water temperature at supply connection min. 2 °C higher
than mixed water temperature
• Cold water connection:
• Hot water connection:
• Minimum flow rate:
If static pressure exceeds 5 bar, a pressure reducing valve
must be fitted.
3
Installation
Flush pipes thoroughly.
Fit S-unions. Required dimensions, see dimensional
drawings on fold-out page I and Fig. [1] on fold-out page II.
Screw-mount the mixer, see Figs. [2] and [3].
1. Turn pre-mounted screw ring (A) by 30°. Press screw
ring (A) from the flat on the union of the wall connection (B),
see Figs. [2] and [3].
2. Screw wall connection (B) to the S-union using a 32mm
open-ended spanner until resistance is felt. Do not tighten
excessively, in order to avoid deformation of the wall
connection (B), see Fig. [3].
3. Press screw ring (A) onto the flat of the wall connection (B).
Turn screw ring (A) by 30° until it engages.
4. Screw escutcheon (C) to wall over screw ring (A).
Open cold and hot-water supply and check connections
for water-tightness.
Adjusting
0.5 bar
For temperature adjustment (calibration), see Figs. [4]
10 bar
and [5].
1 - 5 bar
• Before the mixer is put into service if the mixed water
16 bar
temperature measured at the point of discharge varies from
the specified temperature set on the thermostat.
approx. 14.5 l/min
• After any maintenance operation on the thermostatic
approx. 11.5 l/min
cartridge.
80 °C
1. Open the shut-off handle (D) by pulling the button (D1)
towards the hand shower, see Fig. [4].
60 °C
2. Measure the temperature of the running water using a
38 °C thermometer.
3. Detach the temperature control handle (E), see Fig. [5].
4. Turn regulating nut (F) until the water temperature
reaches 38 °C.
right
5. Fit temperature control handle (E) so that the 38 °C marking
left
coincides with the marking (E2) on the mixer body,
= 5 l/min
see Fig. [4].

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 pulling the button (E1), see Fig. [4].
Shut-off handle (D) operation, see Fig. [4].
Head shower
Hand shower
= Turn the shut-off handle
= Pull button (D1) and turn the
shut-off handle