Technical Data - Grohe 35 500 Technical Manual

GB
Application
The Concealed System can be used in conjunction with:
• Pressurised storage heaters
• Thermally/hydraulically controlled instantaneous heaters
Operation with unpressurised storage heaters (displacement
water heaters) is not possible.
Use as:
• Bath installation/Shower installation/Central installation
All thermostats are adjusted in the factory at a flow pressure
of 3 bar on both sides.
If the Concealed System is installed as a central thermostat,
standard mixers can be installed at the draw-off points. In this
case, the thermostat mixer supplies hot water to which cold water
can be added.
An additional stopcock is only required if further discharge
points are to be connected via unused outlets.

Technical data

• Flow pressure
- Minimum flow pressure without
downstream resistances
- Minimum flow pressure with
downstream resistances
- Recommended
• Max. operating pressure
• Test pressure
If static pressure exceeds 5 bar, a pressure
reducing valve must be fitted.
Avoid major pressure differences between
hot and cold water supply.
• Flow rate at 3 bar flow pressure (with concurrent
use of all discharge points)
Note when installing the outlet:
• Minimum flow rate
• Temperature:
Hot water inlet
Recommended (energy saving)
• Safety stop
• Hot water temperature at supply connection
min. 2 °C higher than mixed water temperature
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. The complete thermostat assemblies
and non-return valves must be unscrewed and removed.
Note:
In the case of concealed shower mixers with bath filling and
overflow sets, observe the following:
• According to EN1717 an approved safety device is
stipulated. A special accessory can be used for this purpose
(see Replacement parts, fold-out page I, Prod. no.: 29 007).
• The approved safety device must be installed above the
bathtub rim!
Installation
Installation, see fold-out page II Fig. [1].
Refer to the dimensional drawing on fold-out page I.
For different installation options, see the pre-drilled holes
in Fig. [1].
When installing a GROHE Custom Shower system, an
orientation line for further installation boxes must be drawn at
the height of the marking, see detail (B1).
Prepare the holes for the thermostatic mixer and slots
for the pipes.
Install the thermostat using the fitting template,
see Figs. [2] and [3].
• The finished surface of the wall must lie within the area (A)
of the fitting template.
• The hot water supply must be connected on the left and the
cold water supply on the right.
Align the thermostat, see Fig. [1].
Place a spirit level on the cams (B) of the fitting template.
Connect the pipes, see Figs. [2] and [3].
• When installing as bath mixer, the plug (C) provided must be
sealed in the unused outlet (bottom), see Fig. [2].
• When installing as shower mixer, the plug (C) provided must
be sealed in the unused outlets (top and bottom),
see Fig. [2].
• When installing as central mixer, the plug (C) provided must
be sealed in the unused outlet (top), see Fig. [3].
The lower discharge point always requires an additional
stopcock.
A soldered connection is not permissible, as this could
damage the built-in non-return valve.
Open the cold and hot water supply and check the fitting
0.5 bar
connections for watertightness.
Rapido T in combination with bath filling and overflow
1 bar
sets, see Fig. [4] to [6].
1 - 5 bar
Stop waterflow to bath filling and overflow sets during the
10 bar
installation with attached plug (F):
16 bar
1. Remove cover (D), see Fig. [4].
2. Unscrew closer plug (E).
3. Fit plug (F) in the outlet for bath filling and overflow sets,
see Fig. [5].
4. Install in screw plug (E), see Fig. [6].
approx. 53 l/min 5. Fit cover (D).
Note:
5 l/min
When assembling the detailed installations, the plug (F) must
be removed.
max. 80 °C
Flush the pipes thoroughly before and after installation
60 °C
(observe EN 806), see Figs. [7] and [8].
38 °C
1. Remove the cover (D), see Fig.[7].
2. Close the hot and cold water supply.
3. Remove the screw plug (G).
4. Remove the non-return valve (H) and filter (I).
5. Install the flushing plugs (J) in non-return valve seat
recesses, see Fig. [8].
6. Open the hot and cold water supply and flush the pipes
thoroughly.
7. Close the hot and cold water supply and remove the
flushing plugs (J).
8. Install the filter (I) and non-return valve (H), see Fig. [7].
9. Replace the screw plug (G).
10. Open the cold and hot water supply.
Fit substrate for sealant, see Figs. [9] and [10].
1. Apply sealant or adhesive, see Fig. [9].
2. Remove the centre piece (K1) of the substrate (K) by cutting
through the tabs (K2).
3. Push the substrate (K) over the fitting template.
4. Apply sealant or adhesive again, see Fig. [10].
Plaster and tile the wall, see Fig. [11].
Do not cut the fitting template before final installation.
Replacement parts, see fold-out page I (* = special
accessories).
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