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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
Media
Medium:
Pressure values
Inlet pressure:
Operating temperatures
Max. operating
temperature medium:
Specifications
Installation position:
Discharge pipe connection: HT 40
3
Options
For Options visit homecomfort.resideo.com/europe
4
Assembly
4.1 Installation Guidelines
•
Install shut-off valves before and after backflow
preventer
•
Install in horizontal pipework with the discharge valve
downwards
•
Ensure good access
– Simplifies maintenance and inspection
•
Backflow preventers of this type have an integral
strainer which protects the device from the ingress of
dirt. With highly polluted water a fine filter should be
installed upstream to ensure the correct function of
the device
– This protects the appliance against dirt
•
Do not install in places where flooding can occur
•
The installation environment should be protected
against frost and ventilated well
•
Install discharge pipework which has adequate
capacity
MU1H-1225 GE23 R0320
Drinking water
1.5 - 10 bar
up to 65 °C (WRAS max.
60 °C)
Horizontal with discharge
valve downwards
GB
•
In order to avoid flooding, it is recommended to
arrange a permanent, professionally dimensioned
wastewater connection
•
These armatures need to be maintained regularly
4.2 Assembly instructions
The rules of the drinking water regulation must be
considered during the assembly!
1.
Thoroughly flush pipework
2.
Install backflow preventer
•
Install in horizontal pipework with discharge
connection directed downwards
• Note flow direction (indicated by arrow)
• Install without tension or bending stresses
3.
Attach drain pipe to discharge connection (plastic pipe
HT 40)
5
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:
5.1 Inspection
5.1.1 System disconnector
1.
Close shut-off valve on inlet
2.
Open the drain point on the inlet side of the shut-off
ball valve.
• If the differential pressure between middle and
inlet chambers is less than 10 % of the inlet
pressure, the system disconnector moves into
disconnect position (back suction). The inlet side
backflow preventer closes and the discharge valve
opens.
Discharge valve does not open, replace backflow
preventer!
3.
Close the drain point on the inlet side of the shut-off
ball valve
4.
Slowly open shut-off valve on inlet
5.1.2 Tightness
1.
Open sampling point
• Backflow preventer changes into flow position.
2.
Optical control backflow preventer of location and
tightness.
Water is escaping from backflow preventer call
Technical Customer Service!
6
Disposal
Observe the local requirements regarding correct waste
recycling/disposal!
3
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