GB
2 MU1H-1034GE23 R0120
1 Safety Guidelines
1. Follow the installation instructions.
2. Use the appliance
• according to its intended use
• in good condition
• with due regard to safety and risk of danger.
3. Note that the appliance is exclusively for use in the
applications detailed in these installation instructions
(see 2 Technical Data). Any other use will not be
considered to comply with requirements and would
invalidate the warranty.
4. Please take note that any assembly, commissioning,
servicing and adjustment work may only be carried
out by authorized persons.
5. Immediately rectify any malfunctions which may
influence safety.
2 Technical Data
3 Options
For Options visit homecomfort.resideo.com/europe
4 Assembly
4.1 Installation Guidelines
• Horizontal and vertical installation position possible
– In vertical installation position spring bonnet with
adjustment knob facing upwards
• Install shut-off valves
• The installation location should be protected against
frost and be easily accessible
– Pressure gauge can be read off easily
– Simplified maintenance and cleaning
• To guarantee perfect functioning, a filter must be
inserted ahead of the pressure reducing valve
• Provide a straight section of pipework of at least five
times the nominal valve size after the pressure
reducing valve (in accordance with EN 806-2)
• Requires regular maintenance in accordance with
EN 806-5
4.2 Assembly instructions
CAUTION!
When using soldering connections, do not solder
the connections together with the pressure
reducing valve! High temperature will irreparably
damage important internal working components!
1. Thoroughly flush pipework
2. Install pressure reducing valve
• Note flow direction
• Install without tension or bending stresses
3. Set outlet pressure
5 Start-up
5.1 Setting outlet pressure
Set outlet pressure min. 1 bar under inlet pressure.
1. Close shut-off valve on inlet
2. Release pressure on outlet side (e.g. through water
tap)
3. Fit pressure gauge (optional)
4. Close shut-off valve on outlet
5. Loosen slotted screw
• Do not remove slotted screw
6. Slacken tension in compression spring
• Turn adjustment handle counter clockwise (-) until
it does not move any more
7. Slowly open shut-off valve on inlet
8. Turn adjuster knob until the manometer shows the
desired value
9. Retighten slotted screw
10. Slowly open shut-off valve on outlet
6 Maintenance
In order to comply with EN 806-5, water fixtures must
be inspected and serviced on an annual basis.
As all maintenance work must be carried out by an
installation company, it is recommended that a
servicing contract should be taken out.
In accordance with EN 806-5, the following measures must
be taken:
6.1 Inspection
1. Close shut-off valve on outlet
2. Check outlet pressure using a pressure meter when
there is zero through-flow
Media
Medium: Drinking water
Connections/Sizes
Connection sizes: 1/2" - 2"
Nominal sizes: DN15 - DN50
Pressure values
Max. inlet pressure: 25 bar
Outlet pressure: 1.5 - 6 bar
Preset outlet pressure: 3 bar
Min. pressure drop: 1 bar
Operating temperatures
Max. operating temperature
medium accord. to EN 1567:
30 °C
Max. operating temperature
medium (10 bar):
70 °C
