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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:
Connections/Sizes
Nominal size diameter:
Discharge pipe connection:
Pressure values
Min. inlet pressure:
Max. operating pressure:
Operating temperatures
Max. operating temperature
medium:
Specifications
Installation position:
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
•
In order to avoid flooding, it is recommended to
arrange a permanent, professionally dimensioned
wastewater connection
•
The installation environment should be protected
against frost and ventilated well
•
Install discharge pipework which has adequate
capacity
Drinking water
DN65 - DN150
DN150
1.5 bar
10 bar
65 °C (WRAS 60 °C)
Horizontal with discharge
valve downwards
GB
•
These armatures need to be maintained regularly
4.2 Assembly instructions
1.
Thoroughly flush pipework
2.
Ensure that connections on back flow preventer are
clean
3.
Install backflow preventer
4.
Install in horizontal pipework with discharge
connection directed downwards
• Note flow direction (indicated by arrow)
• Install without tension or bending stresses
5.
Provide a straight section of pipework of at least five
times the nominal valve size after the backflow
preventer
6.
Observe required clearances
7.
Connect discharge pipework close coupled and
without tight bends according to connection
dimensions (see table)
8.
Install discharge pipework in such a way that the
discharge connection and the discharge valve can be
removed for inspection
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
Test with test kit
The inspection should also include ancillary equipment such
as strainers and shut-off valves.
5.1.1 Testing inlet check valve
Take note of the instructions of the test control unit
TKA295
1.
Procedure according to instruction of the test control
unit TKA295
5.1.2 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.
2
MU1H-1218GE23 R0420
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