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Grohe Grohtherm 1000 Cosmopolitan Manual

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Application
Thermostat mixers are designed for hot water supply via
pressurised storage heaters and, utilised in this way, provide
the best temperature accuracy. With sufficient power output
(from 18 kW or 250 kcal/min), electric or gas instantaneous
heaters are also suitable.
Thermostats cannot be used in conjunction with
non-pressurised 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).
Specifications
Minimum flow pressure without
downstream resistances 0.5 bar
Minimum flow pressure with
downstream resistances 1 bar
Max. operating pressure 10 bar
Recommended flow pressure 1 - 5 bar
Test pressure 16 bar
Flow rate at 3 bar flow pressure approx. 13 l/min
Max. water temperature at hot water supply 80 °C
Recommended max. flow temperature (energy saving) 60 °C
Hot water temperature at supply connection min. 2 °C higher
than mixed water temperature
Cold water connection right
Hot water connection left
Minimum flow rate = 5 l/min
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)!
Screw-mount the mixer, see fold-out page II, Fig. [1].
Refer to the dimensional drawings on fold-out page I.
The projection can be increased by 20mm with an extension,
see Replacement Parts, fold-out page I, Prod. no. 07 130.
For better fixing into dry-lined walls a mounting frame
can be used (see Replacement Parts, fold-out page I,
Prod. no.: 18 153).
With pillar union 18 121 or 18 066 (see Replacement Parts,
fold-out page I) fitting distance 150mm can be switched to
180mm bathtub rim.
Adjustment
Temperature adjustment, see Figs. [2] and [3].
1. Open the shut-off valve and check the temperature of the
water with a thermometer, see Fig. [2].
2. Lever out cap (A), see Fig. [3].
3. Remove screw (B).
4. Detach temperature control handle (C).
5. Turn regulating nut (D) until the water temperature has
reached 38 °C.
Install in reverse order.
Check operation of automatic diverter (E), see fold-out
page III, Fig. [4].
Flow is diverted automatically from shower outlet to bath inlet
when the fitting is closed.
Prevention of frost damage
When the domestic water system is drained, thermostat
mixers 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 valve grease.
Shut off the hot and cold water supply.
I. Non-return valve (F) or (G), see fold-out page III, Fig. [5].
• Remove connection nipple (H) by turning clockwise (left-hand
thread) using a 12mm allen key.
• Remove connection nipple (I) by turning clockwise (left-hand
thread) using a 15mm allen key.
Install in reverse order.
II. Thermostatic compact cartridge (J), see fold-out page III,
Fig. [6].
• Loosen screw ring (K) using a 34mm tool.
• If necessary, lever out thermostatic compact cartridge (J) via
recess (J1).
• Remove screw ring (K).
Install in reverse order.
Observe the correct installation position of the
thermostatic compact cartridge (J), see detail (J2).
Readjustment is necessary after every maintenance operation
on the thermostatic compact cartridge (see Adjusting).
III. Ceramic headpart (L), see fold-out page III, Fig. [7].
IV. Unscrew and clean flow straightener (47 908),
see fold-out page I.
Replacement Parts, see fold-out page I
( * = special accessories).
Care
Dear Customer,
We want to ensure that you get long-lasting satisfaction and
pleasure from your GROHE fitting. Therefore, please read the
following care instructions because damage to the surface and
underlying material resulting from improper treatment is not
covered by warranty.
Do not use any abrasive sponges or scouring agents for
cleaning. We also advise you not to use cleaning agents
containing solvent or acid, limescale removers, household
vinegar and cleaning agents with acetic acid in them. They are
aggressive to the surface - and will leave your fitting dull and
scratched. As the formulations of commercially available
cleaning agents frequently change, we cannot guarantee they
will provide the gentle care our fitting deserves.
Clean the fitting with a little soap and a moist cloth only, then
simply rinse off and wipe dry. You can avoid lime spots by
drying the fitting each time it is used. If lime deposits do occur,
remove them with GrohClean, our environment-friendly
cleaning liquid. GrohClean is specially formulated to clean the
surface of our fittings gently. GrohClean is available from your
supplier.
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