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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 109 °F (43 °C). The product includes an
appropriate temperature end stop. It is generally
recommended that the temperature of shower-systems should
not exceed 100 °F (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).
Specifications
• Minimum flow pressure:
• Max. operating pressure:
• Recommended flow pressure:
• Test pressure:
• Flow rate at 43.5 psi flow pressure:
- bath
• Max. water temperature at hot water supply:
• Recommended max. flow temperature
(energy economy):
• thermal desinfection possible
• Safety stop:
• Hot water temperature at supply connection 4 °F higher than
mixed water temperature.
• Cold water connection:
• Hot water connection:
• Minimum flow rate:
If static pressure exceeds 72.5 psi, 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.
Install S-unions and screw-mount the mixer, see fold-out
page II, Fig. [2] and [3].
Open cold and hot-water supply and check connections
for water-tightness.
Reversed connection (hot on right - cold on left). Replace
thermostatic compact cartridge (A), see Replacement Parts,
fold-out page I, Prod. no. 47 175 (1/2").
English
7.25 psi
145 psi
14.5 psi - 72.5 psi
232 psi
approx. 20,0 L/min or 5.3 gpm
158 °F
140 °F
100 °F
right
left
1.3 gpm
Adjusting
For temperature adjustment (calibration), see fold-out
page II, Figs. [4] and [5].
1. Open the shut-off handle (B) by turning towards the bath
and measure the temperature of the running water using a
thermometer, see Fig. [4].
2. Remove the temperature control handle (C).
3. Turn regulating nut (D) until the water temperature
reaches 100 °F.
4. Fit temperature control handle (C) so that the 100 °F
marking coincides with the marking (C1).
Temperature limitation
The safety stop limits the temperature range to 100 °F.
The 100 °F limit can be overridden by pressing the button,
see Fig. [5].
Temperature end stop
If the temperature end stop is at 109 °F (43 °C), insert
accompanying temperature limiter in temperature selection
handle, see Fig. [5].
Installation of the shower rail, see fold-out page II,
Figs. [6] to [10].
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.
Shut-off handle (B) and diverter (G) operation,
see fold-out page III, Fig. [11] and [12].
Hand shower = Press button (B1), turn the shut-off handle to
bath and pull the diverter
Bath
= Press button (B1) and turn the shut-off handle
Head shower = Turn the shut-off handle
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.
Maintenance
Inspect and clean all parts, replace if necessary and lubricate
with special grease.
Shut off the hot and cold water supply.
I. Non-return valve (H) or (J), see fold-out page III, Fig. [13].
• Remove connection nipple (K) by turning clockwise (left-hand
thread) using a 12mm allen key.
Install in reverse order.
II. Thermostatic compact cartridge (A), see fold-out
page III, Fig. [14].
Install in reverse order.
Observe the correct installation position of the
thermostatic compact cartridge (A), see details, Fig. [14].
Readjustment is necessary after every maintenance
operation on the thermostatic compact cartridge
(see Adjusting).
III. Aquadimmer (N), see fold-out page III, Figs. [15].
Install in reverse order.
Observe correct installation position of individual
components, see details.
Replacement parts, see fold-out page I ( * = special
accessories).
Care
For directions on care, refer to the accompanying Care
Instructions.
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