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Grohe Somerset 20 133 Manual page 5

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Application
Operation is possible in conjunction with:
- Pressurized storage heaters
- Thermally controlled instantaneous heaters
- Hydraulically controlled instantaneous heaters
Operation with low-pressure storage heaters (displacement
water heaters) is not possible.
Specifications
• Max. flow
• Flow pressure
- min.
- recommended
- greater than 72.5 psi, fit pressure reducing valve
• Max. operating pressure
• Test pressure
• Temperature
- max. (hot water inlet)
• Water connection
Notes:
Major pressure differences between cold and hot water supply
should be avoided.
Installation
Refer to the dimensional drawing on page 1.
Flush piping system prior and after installation of faucet
thoroughly!
Side valves, see figs. [1] and [2].
• Valve with a groove on the top edge of the cartridge (A) and
in addition marked with COLD should be mounted on the
right (cold water) side.
• Valve without a groove on the top edge of the cartridge (A)
and in addition marked with HOT should be mounted on the
left (hot water) side.
1. Screw the mounting set (B) to the bottom of the thread of the
side valve (C), see fig. [1].
Make sure that the rubber washer (B1) is on the top of the
fiber washer (B2).
2. Insert the side valve (C) through the basin hole from below.
3. Slide on seals (D) and screw on nut (E).
Make sure that the fiber washer (D1) is on the top of the
rubber washer (D2).
4. With 32mm open-ended spanner fasten the side valve (C).
The distance between the top of the cartridge and the basin
must be 1 7/8", see fig. [2].
5. Screw the escutcheon (F) down to the side valve (C), see
fig. [1].
6. Close the cartridges (clockwise for the hot side and counter-
clockwise for the cold side).
English
5.7 L/min or 1.5 gpm/60 psi
7.25 psi
14.5 - 72.5 psi
145 psi
232 psi
176 °F
cold - Right hand
hot - Left hand
Mount lever (18 172), sold separately, see fig. [1].
1. Slide ring (G) on lever (H).
2. Push on lever (H) and tighten with set screw (I).
3. Screw the ring (G) into the escutcheon (F) until tight.
Hand tighten only!
It is recommended that the lever (H) be installed so they point
away from the spout when in the off position.
Spout, see figs. [3] to [5].
1. Place the O-ring (J) on the basin and insert the spout (K)
from above, see fig. [3].
2. Place the gasket (L) against the bottom of the basin and
fasten with the flange (M) and nut (N). Tighten nut (N) with
a 13mm socket wrench.
3. Connect flexible hoses (O) to the side valves, see figs. [4]
and [5].
Mount lift rod and pop-up drain, see fig. [4].
1. Insert the lift rod (P) through the spout and screw on the
lower lift rod (R).
2. The connector is at the lower lift rod (R).
3. Fit pop-up drain (28 957), see page 2.
Ensure that flange of pop-up drain is sealed.
Connect wideset
Connect the side valves to the water supply. Insure the
supplied washers are used for all connections.
The cold water supply should be connected on the right side
valve (marked COLD) and the hot water supply to the left valve
(marked HOT).
Open cold and hot water supply and check connections
for leakage!
Maintenance
Inspect and clean all parts, replace as necessary and grease
with special grease.
Shut off cold and hot water supply!
I. Ceramic cartridge, see fig. [6].
1. Unscrew ring (G) and remove set screw (I).
2. Pull off lever (H) and unscrew escutcheon (F).
3. Unscrew the ceramic cartridge (A) using a 17mm wrench.
4. Change complete ceramic cartridge (A) or O-ring (A1).
Observe the different replacement part numbers of the
cartridges, see page 2.
II. Laminar control, see page 2.
Unscrew and clean laminar control (48 159).
Assemble in reverse order.
Replacement parts, see page 2 ( * = special accessories).
Care
Instructions for care of this faucet will be found in the Limited
Warranty supplement.
4

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