Maintenance - Grohe Grohtherm 3000 19 250 Instructions Manual

GB
Installation
Be careful about the concealed mixer housing, see
fold-out page II.
- Plaster and tile the wall, excluding the area occupied by the
mounting template. Seal any apertures in the wall so that
they are watertight to spray water.
• Tiles laid in mortar should be pointed so that the joint is
tapered towards the outside.
• Seal prefabricated walls with a permanently plastic
compound.
Shut off cold and hot water supplies.
- Remove the mounting template, see fold-out page I fig. [1].
- Remove clip (A) and pull off stop ring (B).
- Install stop ring (C) supplied so that mark (C1) is at right, fit
clip (A) and sleeve (D), see fig. [2].
- Install holder (E) and fit sleeve (F), see fig. [3].
- Grease the seals (G1) for the escutcheon mounting
bracket (G2) with the special grease supplied and install
escutcheon mounting bracket (G2) with srews (K), see
fig. [4].
- Fit the escutcheon (G).
Open cold and hot water supplies.
If the thermostat has been installed at too great a depth,
this can be adjusted by 27.5mm with an extension set (see
fold-out page II, ref. No. 47 653).
Installation of the flow control knob and adjustment of the
economy stop, see fold-out page I figs. [5] to [7].
• The flow rate is limited by the economy stop (H) supplied,
see fig. [5].
To install the flow control knob, proceed as follows:
1. Close the ceramic headpart (J) by turning clockwise.
2. Install the economy stop (H) in the desired position.
For possible settings, see fig. [6].
3. Fit scale ring (M1), see fig. [7].
4. Fit splined adapter (L).
5. Install flow control knob (M) so that the button (N) is at top.
6. Reinstall screw (O).
7. Fit cap (P).
If a higher rate is desired, the stop can be overridden by
depressing the button (N).
Adjustment
Installation of the thermostat knob and temperature
adjustment, see fold-out page III figs. [8] and [9].
• Before the mixer is put into service if the mixed water
temperature measured at the point of discharge varies from
the specified temperature set on the thermostat.
• After any maintenance operation on the thermoelement.
1. Open the shutt-off valve and check the temperature of the
water with a thermometer, see fig. [8].
2. Turn the adjusting nut (Q) clockwise or anticlockwise until
the water temperature reaches 38 °C.
3. Fit scale ring (R1), see fig. [9].
4. Install temperature control handle (R) so that the button (V)
is at top.
5. Reinstall screw (S).
6. Fit cap (T).
Reversed union (hot on right - cold on left).
Replace thermoelement (W), see replacement parts fold-out
page II, ref. No. 47 657 (1/2").
Temperature limitation
The safety stop limits the temperature range to 38 °C.
If a higher temperature is desired, the 38 °C limit can be
overridden by depressing the button (V), see fig. [9].
Temperature limit stop
If the temeprature limit stop should be 43 °C, use handel ref.
No. 47 757 (see fold-out page II).
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.
The complete thermostat assemblies and non-return valves
must be unscrewed and removed.

Maintenance

Inspect and clean all parts, replace if necessary and grease
with special valve grease.
Shut off cold and hot water supplies.
I.Thermoelement (W), see fold-out page III fig. [10].
Readjustment is necessary after every maintenance operation
on the thermoelement (see Adjustment).
Reassemble in reverse order.
The overload unit (Q1) must be screwed as far as possible in
the adjusting nut (left-hand thread) (Q).
Install stop ring (C) so that mark (C1) is at right.
II. Non-return valve (X), see fold-out page III fig. [11], [12]
and [13].
Reassemble in reverse order.
III. Ceramic headpart (J), see fold-out page III fig. [11], [12]
and [13].
Reassemble in reverse order.
Observe the correct mounting positions!
Replacement parts, see fold-out page II ( * = special
accessories).
Care
For directions on the care of this fitting refer to the
accompanying Care Instructions.
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