Bedienungsanleitung Grohe Grohtherm 1000 Cosmopolitan (Seite 4 von 6) (Englisch)

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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 3 bar 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 0.1 bar

• Maximum operating pressure 10 bar

• Test pressure 16 bar

If static pressure is greater than 5 bar, fit pressure reducer.

Avoid major pressure differences between cold and hot water

supply.

• Maximum difference between cold- and hot water supply

pressure: 1: 5

• Flow rate at 0.1 bar flow pressure without downstream

restrictor: approx. 5.5 l/min

• Flow rate at 3 bar flow pressure: approx. 42 l/min

• Temperature

-Hot water inlet (maximum): 80 °C

-Recommended (energy saving): 60 °C

-Safety stop: 38 °C

• Water connection cold - right

hot - left

• Minimum flow rate: = 5 l/min

Installation

Flush piping system prior and after installation of fitting

thoroughly (Consider EN 806)!

Install S-unions and screw-mount the mixer, see fold-out

page I, Fig. [1].

Refer to the dimensional drawings on fold-out page I.

The projection can be increased by 20mm with an extension,

see Replacement Parts, fold-out page II, Prod. no. 07 130.

For better fixing into dry-lined walls a mounting frame

can be used (see Replacement Parts, fold-out page II,

Prod. no.: 18 153).

Adjustment

Temperature adjustment, see Figs. [2] and [3].

1. Open the shut-off valve and check the temperature of the

water with a thermometer, see Fig. [2].

2. Lever out cap (A), see Fig. [3].

3. Remove screw (B).

4. Detach temperature control handle (C).

5. Turn regulating nut (D) until the water temperature has

reached 38 °C.

6. Install temperature control handle (C) so that button (E)

points towards the front, see Fig. [2].

7. Screw in screw (B), see Fig. [3].

8. Refit cap (A).

Temperature limitation

The safety stop limits the temperature range to 38 °C. The

38°C limit can be overridden by pressing the button (E).

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. For this

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 (F), see fold-out page III, Fig. [4].

• Remove connection nipple (G) by turning clockwise (left-

hand thread) using a 12mm allen key.

Install in reverse order.

II. Thermostatic compact cartridge (H), see fold-out page III,

Fig. [5].

• Loosen screw ring (J) using a 34mm tool.

• If necessary, lever out thermostatic compact cartridge (H)

via recess (H1).

• Remove screw ring (J).

Install in reverse order.

Observe the correct installation position of the

thermostatic compact cartridge (H), see detail (H2).

Readjustment is necessary after every maintenance operation

on the thermostatic compact cartridge (see Adjusting).

III. Headpart (K), see fold-out page III, Fig. [6].

Replacement Parts, see fold-out pages II

( * = special accessories).

Care

For directions on the care of this fitting, refer to the

accompanying Care Instructions.

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