Maintenance - Grohe Grohtherm 1000 34 335 Montageanleitung

I952553.book : I95255GB.FM Seite 4 Donnerstag, Juli 15, 1999 10:51 AM
Adjusting the economy stop
For flow rate adjustment, see figs. [4] to [7]
• The flow rate is limited by a stop, adjusted by the factory.
If a higher rate is desired, the stop can be overridden by
depressing the economy button (X), see fig. [4].
If the stop is required to be adjusted, proceed as follows:
1. Close shut-off valve.
2. Remove screw (C), see fig. [4].
3. Remove shut-off knob (F), splined adapter (D) and
economy stop (H), see fig. [5].
4. Reinstall economy stop (H) in the desired position. For
adjustment range, see fig. [6].
5. Fit splined adapter (D) and shut-off knob (F) with
economy button (X) facing to the front and reinstall
screw (C), see fig. [7].
Check function of automatic diverter (R) of bath mixer
34 335, see also fig. [8].
The water supply is turned on by lifting the lever.
The water will always emerge from the bath outlet first of
all. Pulling the changeover selector (R) closes the water
passage to the bath and the water is diverted to the
shower outlet.
When the mixer is turned off, the diverter is automatically
reset to its starting condition, with the result that the water
always flows out of the bath tap when the mixer is turned
on again.
In addition, the diverter assembly can be secured
manually (advantageous at pressures below
0,5 bar or at low rates of discharge). In this case, pull the
diverter knob of the diverter assembly (R) and turn it anti-
clockwise, see also fig. [9].
Prevention of frost damage
When the domestic water system is drained, thermostat
mixers must be draind 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

For maintenance, see fold-out page I and
fig. [10] and [11].
Shut off hot and cold water supplies.
I. Non-return valve
1. With a 30 mm open-ended spanner, unscrew and
remove mixer from unions.
2. Remove dirt strainer (U).
3. With a 12 mm hexagon socket spanner, remove union
nipple (S) by turning clockwise (left-hand thread).
4. Remove non-return valve (V).
Reassemble in the reverse order.
II. Thermoelement
1. Unscrew and remove (G) and pull off thermostat
knob (E).
2. Unscrew and remove adjusting nut (B).
3. Pull off stop ring (A).
4. With a 24 mm open-ended spanner, unscrew and
remove thermoelement (Z).
Reassemble in the reverse order. In doing so, take care to
ensure that the stop ring (A) is installed in its original
position [groove (P) offset by 45°], see fig. [10].
Readjustment is necessary after every maintenance
operation on the thermoelement (see Adjustment).
III. Ceramic headpart
1. Remove screw (C).
2. Remove shut-off knob (F), splined adapter (D) and
economy stop (H).
3. With a 17 mm open-ended spanner, unscrew and
remove ceramic headpart (Y).
Reassemble in the reverse order.
IV.Diverter assembly, see fig. [11].
1. Unscrew and remove cap (N).
2. With an open-ended 7 mm spanner, unscrew and
remove nut (O) and remove diverter knob (I).
3. With an open-ended 13 mm spanner, remove head
nut (J) and remove circlip (T).
4. Pull off lock washer (K) from diverter spindle (L).
5. With a 12 mm socket spanner, remove outlet nipple (M).
Reassemble in the reverse order.
V. Unscrew and clean aerator (13 927), see fold-out
page I.
Inspect and clean all parts, replace if necessary and
grease with special valve grease (ref. No. 18 012).
Use only genuine Grohe replacement parts.
Replacement parts, see fold-out page I ( * = special
accessories).
Care
For directions on the care of this thermostat mixer, please
refer to the accompanying Care Instructions.
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