42
Safety and Important Information
Hansgrohe products are safe provided they are installed, used and maintained in
accordance with these instructions and recommendations.
Please read these instructions thoroughly and retain for future use.
The plumbing installation of this thermostat mixing valve must comply with the
requirements of UK.
Water Regulations/Bylaws (Scotland), Building Regulations or any other regulations
specified by the local Water Authority and supplier.
The installation of thermostatic mixing valves must comply with the requirements of
the Water Supply (Water Fittings) Regulations 1999.
We strongly recommend that you use a plumber registered with or a member of an
Association:
Chartered Institute of Plumbing and Heating Engineering (CIPHE)
Water Industry Approved Plumber Scheme (WIAPS)
Dispose of plastic bags carefully.
Keep children well away from the work area.
Check for hidden pipes and cables in the wall before drilling holes.
The unit must be mounted on a finished waterproofed wall surface (usually tiles).
If you are using power tools (e.g. to drill holes) wear safety glasses and always
disconnect tools from the power supply after use.
Do not operate the shower unit if the hand shower or spray hose has been dam-
aged or is blocked.
Do not block the flow of water from the hand shower, by placing it on your hand or
any other part of your body or foreign object.
The thermostatic unit should be serviced annually by a qualified person to ensure
maximum safety during use.
The thermostatic mixing valve will be installed in such a position that maintenance
of the TMV and its valves and the commissioning and testing of the TMV can be
undertaken.
The mixer is fitted with check valves (page 41 pos. 95773000). There are filters on
the thermostatic element too (page 41 pos. 98282000).
The fitting of isolation valves is required (preferred location page 43 Installation
Requirements).
Technical Hotline
(for UK only)
Tel: 01372465655
Email: Technical@hansgrohe.co.uk
(Diese Servicehotline ist nur für das Vereinigte Königreich Großbritannien, nicht
z. B. für Deutschland)
Technical Data
This thermostatic valve will suit supplies of:
HIGH PRESSURE (HP-S / HP-T)
Type 3 High Pressure shower HP-S only
Type 2 High Pressure shower or tub as appropriate HP-S and or HP-T
Operating pressure:
max. 10 bar
Recommended operating pressure:
1 - 5 bar
Test pressure:
16 bar
Hot water temperature:
max. 60°C
Recommended hot water temp.:
55 - 60°C
Rate of flow from bath spout:
20 l/min. @ 3 bar
Rate of flow from shower outlet:
18 l/min. @ 3 bar
Maximum outlet temperature:
43°C +/-*
Safety check:
40°C
Hot water connection:
Left hand
Cold water connection:
Right hand
Mixed water temperature
Application
Mixed water temperature
(at point of discharge).
Shower
41°C max.
Washbasin
41°C max.
Bath (44°C fill)
44°C max.
Minimum difference between hot
water and mixed water temperature:
6 K
Hot and cold supply pressure should be balanced
* For preset outlet temperature adjustment – See page 35.
NB.
If a water supply is fed by gravity then the supply pressure should be verified
to ensure the conditions of use are appropriate for the valve.
Recommended outlet temperatures
The TMV scheme recommends the following set maximum mixed water outlet tem-
peratures for use in all premises:
44°C for bath fill but see notes below;
41°C for showers;
41°C for washbasins.
The maximum mixed water temperature can be 2°C above the recommended
maximum set outlet temperatures.
Note:
46°C is the maximum mixed water temperature from the bath tap. The maxi-
mum temperature takes account of the allowable temperature tolerances inherent in
thermostatic mixing valves and temperature losses in metal baths.
It is not a safe bathing temperature for adults or children.
The British Burns Association recommends 37 to 37.5°C as a comfortable bathing
temperature for children. In premises covered by the Care Standards Act 2000, the
maximum mixed water outlet temperature is 43°C.
Installation Requirements
This thermostatic mixer valve must be installed in compliance with current Water
Regulations. If you have any doubts about the Water Regulation requirements con-
tact your local water services provider or use the services of a professional plumber.
This mixer valve is suitable for use with the following water supply systems:
Gas Combination Boiler (multi-point) 1.0 - 10 bar*
Unvented System (pressure balanced) 1.0 - 10 bar
Pumped System 1.0 - 10 bar
IMPORTANT:
If you install this mixer with a gravity fed system, there must be a
minimum head (vertical distance) from the underside of tlie cold water storage tank
to the showerhead position of at least 5 metre.
Before connecting the mixer, water should be flushed through the system to remove
all debris that might otherwise damage the valve.
* If pressure is in excess of 3.5 bar, a pressure-reducing valve should be fitted.
Supply Conditions TMV Type 2
Operating pressure range
High pressure
Maximum static pressure - bar
10
Flow pressure, hot and cold - bar
0.5 to 5
Hot supply temperature - °C
55 to 65
Cold supply temperature - °C
5 to 25
Valves operating outside these conditions cannot be guaranteed to operate as Type
2 or Type 3 valves.
Commissioning and in-service tests
Commissioning
Purpose
Since the installed supply conditions are likely to be different from those applied
in the laboratory tests it is appropriate, at commissioning, to carry out some simple
checks and tests on each mixing valve to provide a performance reference point for
future in-service tests.
Procedure
1.
Check that:
a) the designation of the thermostatic mixing valve matches the intended ap-
plication
b) the supply pressures are within the range of operating pressures for the
designation of the valve
c) the supply temperatures are within the range permitted for the valve and by
guidance information on the prevention of legionella etc.
2.
Adjust the temperature of the mixed water in accordance with the manufac-
turer’s instructions (page 35) and the requirement of the application and then
carry out the following sequence:
a) record the temperature of the hot and cold water supplies
b) record the temperature of the mixed water at the largest draw-off flow rate
On the following pages 42 - 43
you can find important information
only for the installation in UK
TMV
