GB
2
MU1H-1234 GE23 R0420
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
•
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
•
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
•
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
1.
Thoroughly flush pipework
2.
Install backflow preventer
•
Install in horizontal pipework with discharge
connection directed downwards
• Install without tension or bending stresses
•
Note flow direction (indicated by arrow)
•
Provide a straight section of pipework of at least five
times the nominal valve size after the backflow
preventer
3.
Attach drain pipe to discharge connection (plastic pipe
HT 50, HT 70)
4.
The appliance is ready for use
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
Inspection with a test control unit and maintenance-
set
5.1.1 Testing discharge valve
Take note of the instructions of the test control unit
TKA295
1.
Procedure according to instruction of the test control
unit TKA295
Quick test for the discharge valve:
•
Lower the inlet pressure
• if the discharge valve opens (it drops), the function
is o.k.
5.1.2 Testing outlet check valve
Take note of the instructions of the test control unit
TKA295
1.
Procedure according to instruction of the test control
unit TKA295
Media
Medium: Drinking
water
Connections/Sizes
Connection size:
1
/
2
" - 2"
Discharge pipe connection: DN50 for connection sizes
1
/
2
" - 1"
DN70 for connection sizes 1
1
/
4
" - 2"
Pressure values
Inlet pressure:
1.5 bar - 10 bar
Operating temperatures
Max. operating temperature
medium:
65 °C
Specifications
Installation position:
Horizontal with discharge
valve downwards
