Technical Data; Maintenance - Grohe 27 032 Installation Manual

GB
Safety notes
Protection against scalding
It is recommended that near points of discharge with
particular sensitivity to the outlet temperature
(hospitals, schools, nursing and retirement homes)
thermostatic devices should be installed which can limit the
water temperature to 43 °C. The product includes an
appropriate temperature end stop. It is generally
recommended that the temperature of shower-systems should
not exceed 38 °C in nurseries and specific areas of care
centres. Use Grohtherm Special thermostats with special
handle to facilitate thermal disinfection and appropriate safety
end stop. Applicable standards (e. g. EN 806-2) and technical
regulations for drinking water must be observed.
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 27 032/27 966/27 967/27 968 approx. 14,5 l/min
head shower 27 174
hand shower
Max. water temperature at hot water supply
Recommended max. flow temperature
(energy economy)
Thermal disinfection possible
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.
Installation
Flush piping system prior and after installation of fitting
thoroughly (Consider EN 806)!
Required dimensions, see dimensional drawings on fold-out
page I and Fig. [1] on fold-out page II.
1. Install S-unions and attach the sleeve together with the
escutcheon, see fold-out page II, Fig. [2].
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.
Open cold and hot-water supply and check connections
for water-tightness.
Reversed connection (hot on right - cold on left). Replace
thermostatic compact cartridge, see Replacement Parts,
fold-out page I, Prod. no. 47 175 (1/2").
When using this thermostatic compact cartridge,
the Cool Touch function is no longer available.
Adjusting
Temperature adjustment, see fold-out page II, Fig. [3].
Temperature limitation
The safety stop limits the temperature range to 38 °C. The 38 °C
limit can be overridden by pressing the button, see Fig. [4].
Temperature limit stop
If the temperature end stop is at 43 °C, insert accompanying
temperature limiter in temperature selection handle,
see Fig. [4].
Installation of the shower rail, see fold-out page II, Figs. [5]
to [9].
When installing e.g. on plasterboard walls (not solid walls) it
must be assured that an appropriate reinforcement is in place
to ensure sufficient strength.
Installation of the head shower, see fold-out page III, Fig. [10].
Shut-off handle operation, see Fig. [11].
Prevention of frost damage
When the domestic water system is drained, thermostats must
be drained separately, since non-return valves are installed in
the hot and cold water connections. For this purpose, the
mixer must be removed from the wall.
0.5 bar
10 bar

Maintenance

1 - 5 bar
16 bar
Inspect and clean all parts, replace if necessary and lubricate
with special grease.
Shut off the hot and cold water supply.
approx. 16,5 l/min
Non-return valve, see fold-out page III, Fig. [12].
approx. 12 l/min
Install in reverse order.
70 °C
Thermostatic compact cartridge, see fold-out page III,
60 °C
Fig. [13].
Install in reverse order.
38 °C
Readjustment is necessary after every maintenance
operation on the thermostatic compact cartridge
(see Adjusting).
right
Aquadimmer, see fold-out page III, Fig. [14].
left
Install in reverse order.
= 5 l/min
Shower, see fold-out page III, Figs. [15] and [16].
Install in reverse order.
The function of the SpeedClean nozzles is guaranteed for a
period of five years.
Thanks to the SpeedClean nozzles, which must be regularly
cleaned, limescale deposits on the rose can be removed by
simply rubbing with the fingers.
Replacement parts, see fold-out page I ( * = special
accessories).
Care
For directions on care, refer to the accompanying Care
Instructions.
2