Volume Adjustment - Grohe GROHTHERM 2000 34 523 Manual De Instrucciones

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 45 psi 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
Minimum flow pressure with
downstream resistances
Max. operating pressure
Recommended flow pressure
Test pressure
Flow rate: approx. 17 L/min or 4.5 gpm/20 psi
approx. 26 L/min or 6.8 gpm/45 psi
approx. 38 L/min or 10 gpm/100 psi
Max. water temperature at hot water supply
Recommended max. flow temperature (energy saving) 140 °F
Safety stop
Hot water temperature at supply connection min. 4 °F higher
than mixed water temperature
Cold water connection
Hot water connection
If static pressure exceeds 72.5 psi, a pressure reducing valve
must be fitted.
Installation
Flush piping system prior and after installation of fitting
thoroughly (Consider EN 806)!
1. Install S-unions and attach the sleeve together with the
escutcheon, see fold-out page I, Fig. [1].
2. Screw-mount the mixer and test the connections for
watertightness.
3. Push the sleeve with escutcheon onto the union nut.
4. Screw the escutcheon flush against the wall.
5. Install rack, see Fig. [2].
The projection can be increased by 1 3/16" (30mm) with an
extension, see Replacement Parts, fold-out page II,
Prod.no.: 46 238.
Reversed connection (hot on right - cold on left).
Replace thermostatic compact cartridge (A), see Replacement
parts, fold-out page II, Prod. no.: 47 175 (1/2").
When using this thermostatic compact cartridge, the Cool
Touch function is no longer available.
Adjusting
Temperature adjustment, see Figs. [3] and [4].
1. Open the shut-off valve and check the temperature of the
water with a thermometer, see Fig. [3].
2. Lever out cap (B), see Fig. [4].
3. Remove screw (C).
1
English
4. Detach temperature control handle (D).
5. Turn regulating nut (E) until the water temperature has
reached 100 °F.
6. Install temperature control handle (D) so that button (F) is at
the top, see Fig. [3].
7. Screw in screw (C), see Fig. [4].
8. Refit cap (B).
Temperature limitation
The safety stop limits the temperature range to 100 °C. The
100 °F limit can be overridden by pressing the button (F).

Volume adjustment

Adjusting the economy stop, see fold-out page I, Fig. [5].
• The flow rate is limited by a stop adjusted at the factory. If a
higher flow rate is desired, the stop can be overridden by
pressing the button (G)
7.25 psi
To adjust the stop, proceed as follows:
1. Close shut-off valve.
14.5 psi
2. Lever out cap (H).
145 psi
3. Remove screw (I) and detach shut-off handle (J).
14.5 psi -72.5 psi
4. Remove splined adapter (K) and economy stop (L).
232 psi
5. Reinstall economy stop (L) in the desired position. See
adjustment range.
6. Fit splined adapter (K).
7. Fit shut-off handle (J) so that the button (G) is at top.
158 °F
8. Screw in screw (I).
9. Refit cap (H).
100 °F
Prevention of frost damage
When the domestic water system is drained, thermostat
right
mixers must be drained separately, since non-return valves
are installed in the hot and cold water connections. For this
left
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 (M), see fold-out page III, Fig. [6].
• Remove connection nipple (N) by turning clockwise (left-hand
thread) using a 12mm allen key.
Install in reverse order.
II. Thermostatic compact cartridge (A), see fold-out page III,
Fig. [7].
Install in reverse order.
Observe the correct installation position of the
thermostatic compact cartridge (A), see detail.
Readjustment is necessary after every maintenance operation
on the thermostatic compact cartridge (see Adjusting).
III. Ceramic headpart (O), see fold-out page III, Fig. [8].
Replacement Parts, see fold-out pages II ( * = special
accessories).
Care
Instructions for care of this faucet will be found in the Limited
Warranty supplement.