Grohe 34 507, Installation Manual

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1
English
Application
Thermostat mixers are designed for hot water supply via
pressurised storage heater and utilised in this way provide the
best temperature accuracy. With sufficient power (from 18 kW
or 250 kcal/min) electric or gas instantaneous heaters are also
suitable.
Safe limitation of the max. outlet temperature via preset
thermostats on every standard wash basin mixer
(thermal
scalding protection) .
Thermostat mixers cannot be used in conjunction with low-
pressure storage heaters (displacement water heaters).
All thermostats are adjusted in the plant at a flow pressure on
both sides of 43.5 psi.
If temperature deviations should occur on account of special
installation conditions, the thermostat must be adapted to local
conditions (see Adjustment).
Specifications
• Minimum flow pressure with downstream resistances:
14.5 psi
• Max. operating pressure: 145 psi
• Recommended flow pressure: 14.5 - 72.5 psi
• Test pressure: 232 psi
• Flow rate at 43.5 psi flow pressure: approx. 5.3 gpm
• Max. water temperature at hot water inlet: 158 °F
• Thermal disinfection possible
• Pre-adjustment: 102 °F
• Max. mixed water temperature: 115 °F
• Minimum flow rate: = 1.3 gpm
Hot water temperature at supply connection at least 3.6 °F
higher than mixed water temperature.
A pressure reducing valve must be fitted in the supply line if
static pressures exceed 72.5 psi to satisfy noise level ratings.
Installation
Refer to the dimensional drawing on fold-out page I.
Flush pipes thoroughly before and after installation!
Screw thermostat on hot water service valve, see fold-out
page II, Fig. [1].
Connection to pillar tap, see Figs. [2], [3a] and [4a].
Connection to mixer faucet, see Figs. [2], [3b] and [4b].
Open the hot and cold water supply and check that
connections for leakage!
Adjustment
Before the faucet is put into service and after any maintenance
operation on the thermostatic compact cartridge the
thermostat must be adjusted.
For pillar taps the mixed water temperature is adjusted at the
thermostatic compact cartridge.
For mixer fittings the max. hot water temperature is adjusted
at the thermostatic compact cartridge.
Temperature setting, see fold-out page II, Fig. [5].
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 thermostat must be removed from the unions.
Thermal disinfection
With the special accessory key [Prod. no. 48 234] a thermal
disinfection can be carried out without changing the setted
temperature. A subsequent adjustment is not necessary.
Thermal disinfection, see fold-out page II, Fig. [6].
- Start by turning the key to the left.
The flushing time during the thermal disinfection depends on
the water temperature. National standards must be
observed.
- Terminating by turning the key to the right until it stops.
Maintenance
Inspect and clean all components and replace if necessary.
Shut off cold and hot water supply.
I. Non-return valves, see fold-out page II, Fig. [7].
II. Thermostatic compact cartridge, see fold-out page II,
Fig. [8].
- If necessary, lever out thermostatic compact cartridge via
recess (A), see detail.
Assemble in reverse order.
Observe the correct installation position of the
thermostatic compact cartridge,
see detail (B).
Readjustment is necessary after each maintenance operation
on the thermostatic compact cartridge (see Adjustment).
Assemble in reverse order.
In order to ensure long-term protection from scalding, at
least once a year must be checked that the pre-adjusted
outlet temperature is not exceeded.
If the temperature has been exceeded, it must be readjusted
(see Adjustment).
Spare parts, see fold-out page I ( * = special accessories).
Care
Instructions for care of this faucet will be found in the Limited
Warranty supplement.