Grohe Vitalio System 27 298 Technical Data Manual page 5

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.
Installation
Flush piping system prior and after installation of fitting
thoroughly!
Required dimensions, see fold-out page I, Fig. [1].
Install S-unions and screw-mount the mixer, see fold-out
page I, Fig. [2] to [4].
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").
Adjusting
For temperature adjustment (calibration), see fold-out
page I, Fig. [5] and fold-out page II, Fig. [6].
1. Open the shut-off handle (B) by pressing the button (B1)
towards the hand shower and measure the temperature of
the running water using a thermometer, see Fig. [5].
2. Remove the temperature control handle (C), see Fig. [6].
3. Turn regulating nut (D) until the water temperature
reaches 38 °C.
4. Fit temperature control handle (C) so that the 38 °C marking
coincides with the marking (C1), see Fig. [5].
Temperature limitation
The safety stop limits the temperature range to 38 °C. The 38 °C
limit can be overridden by pressing the button (E), see Fig. [5].
Shut-off handle (B) operation, see Fig. [5].
Head shower
Hand shower
Installation of the shower rail, see fold-out page II, Figs. [7]
to [11].
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.
1. Insert pipe (F) in the mixer body, see Fig. [7].
2. Align pipe (F) and mark position of bores.
3. Drill holes and insert plugs, see Fig. [8].
0.5 bar
4. Pull O-ring (G1) onto backplate (G) and fasten with
10 bar screws (H) using seal (I), see Fig. [9].
5. Push escutcheon (J) onto bracket (K) and insert pipe (F) into
1 - 5 bar
mixer body, see Fig. [10].
16 bar
6. Push bracket (K) onto backplate (G), align, and fasten with
set screw (G1).
approx. 14.5 l/min
7. Push the escutcheon (J) against the wall.
approx. 12 l/min
8. Push the shower arm (L) onto the pipe connection from
80 °C
above and secure with set screw (L1), see Fig. [11].
9. Attach hand shower (M) to hose (N) using the supplied
60 °C
filter (M1) and connect to mixer.
38 °C
Installation of the head shower, see fold-out page II,
Fig. [12].
right
Insert seal (O1) and filter (O2) and screw head shower (O)
left
onto shower arm.
= 5 l/min
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 (Q) or (R), see fold-out page II, Fig. [13].
• Remove connection nipple (P) by turning clockwise (left-hand
thread) using a 12mm allen key.
Install in reverse order.
II. Shower, see fold-out page II, Fig. [14].
The function of the SpeedClean nozzles is guaranteed for a
period of five years.
Simply rub SpeedClean nozzles in order to remove limescale
deposits from rose.
Please contact your installer in the event of faults not
described here.
Replacement parts, see fold-out page I ( * = special
accessories).
Care
For directions on care, refer to the accompanying Care
Instructions.
= Turn the shut-off handle
= press button (B1) and turn the
shut-off handle
2