Grohe Atrio 21 059 Manuel D'installation page 5

Install handles, see Fig. [8].
- Grease o-ring of handle with special grease supplied.
- Install handles (21 072) or (21 073) and fasten using set
screws (K1) and (K2).
Adjusting thermostats
• Before putting into service
• Following all maintenance operations on the thermostatic
cartridge
- Open the shut-off valve via shut-off handle (L1) and check
the temperature of the water using a thermometer, see
Fig. [9].
- Turn regulating nut (M1) clockwise or counter-clockwise until
the water temperature has reached 100 °F.
- Attach temperature control handle (K) so that the 100 °F
marking points towards the front.
- Attach snap insert (L) and fasten using screw (M).
- Attach handle (N3).
- Insert set screw (K2) using a 4mm allen wrench.
Temperature limitation
The safety stop limits the temperature range to 100 °F.
If a higher temperature is desired, the 100 °F stop can be
overridden by pressing the button (K3).
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 removed.
Maintenance
Maintenance, see Figs. [10] to [13].
Inspect and clean all parts, replace if necessary and apply
special grease (order no. 18 012).
Shut-off hot and cold water supply; also possible by
closing the isolating valves, see fold-out page I, Figs. [2]
and [3].
1. Loosen set screw (K2) and detach handle (N3), see fold-out
page II, Fig. [9].
2. Loosen screw (M) and detach snap insert (L), see fold-out
page I, Fig. [3].
3. Detach temperature control handle (K).
4. Remove escutcheon (J).
5. Remove mounting set (J3) and remove escutcheon
mounting base (J2).
6. By loosening bolts (E), the thermostat unit can be moved to
the right and to the left, see Fig. [2].
7. Close both isolating valves (O1) using an 8mm allen
wrench, see fold-out page II, Fig. [10].
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English
I. Thermostatic cartridge, non-return valve and isolating
valves, see Fig. [10].
Caution Shut-off main pipes.
1. Same procedure as for closing isolating valves, steps 1 - 5.
2. Detach sleeve (H).
3. Remove clip (P1).
4. Detach stop ring (P2).
5. Detach regulating nut (M1) with overload unit (M2).
6. Loosen extension set (Q1) using a 2.5mm allen wrench and
remove.
7. Remove thermostatic cartridge (R1) using a 22mm open-
ended wrench.
8. Remove non-return valve (S1) using a 10mm allen wrench.
9. Remove isolating valve (O1) using an 8mm allen wrench.
Caution Shut-off main pipes before.
Assemble in reverse order.
It must be ensured that the overload unit (M2) is screwed as
far as possible into the regulating nut (M1) (left-hand thread).
Observe correct installation position of stop ring (P2).
Readjustment is necessary after each maintenance operation
on the thermostatic cartridge (see Adjustment).
II. Headpart, see Fig. [11].
1. Loosen set screw (K1) and remove handle (N4).
2. Completely remove pre-mounted spindle & sleeve (P).
3. Remove escutcheon (O).
4. Unscrew extension (T3).
5. Remove headpart (U2) using a 17mm socket wrench.
III. Spray hose and filter, see Fig. [12].
1. Remove spray hose (B1) and detach handspray (F1) from
the handshower adaptor (D1).
2. Clean or replace filter (E1).
3. Remove guide (B2).
4. Pull out the spray hose (B1) until the spray hose protrudes
from the lower part.
5. Secure the spray hose against the lower part to prevent
sliding back.
6. Remove spray hose (B1).
IV. Diverter, see Fig. [13].
1. Remove diverter knob cap (V1).
2. Remove nut (V2) using a 7mm socket wrench.
3. Detach diverter knob (V3).
4. Remove escutcheon hold down (W) using a 19mm open-
ended wrench.
5. Remove escutcheon (V).
6. Remove diverter (V4) using a 17mm socket wrench.
V. Remove and clean flow regulator (13 907), see fold-out
page III.
Assemble in reverse order.
Replacement parts, see fold-out page III ( * = special
accessories).
Care
For directions on the care of this fitting, please refer to the
accompanying Care Instructions.
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