Safety Guidelines; Technical Data; Options; Assembly - Resideo Braukmann R295 Instructions D'installation

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
Connection size:
Pressure values
Max. inlet pressure:
Opening pressure:
Min. inlet 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
• Install in horizontal pipework with spring bonnet
directed upwards
• Ensure good access
– Pressure gauge can be read off easily
– Simplifies maintenance and inspection
• No further unprotected mains water supply may be
connected downstream of the mechanical
disconnector
Cold drinking water
1
/ " - 2"
2
10 bar
0.5, 1, 1.5 or 2 bar as
required
Opening pressure + 1 bar
40 °C
Horizontal with spring bonnet
upwards
GB
• Mechanical disconnectors must not be fitted in any
areas or ducts where poisonous gases or vapours
may be present or where flooding can occur
• 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 opening pressure of the backflow preventer must
be correctly selected to match the system which is to
be protected. (see 4.3 Commissioning).
• Flush connecting pipework thoroughly before
installation
• Install the backflow preventer with good accessibility
and with flow in the correct direction
• Install the backflow preventer only in horizontal
pipework and with the discharge tundish downwards
• A clearance of A
backflow preventer for maintenance purposes
Rp 1/2" to 1"
A 100 mm
min
• It is recommended that a Y-strainer  (e.g. FY 30) be
fitted upstream to protect the changeover valve and
backflow preventer against dirt.
• Fit shut-off valves  and  either side of the
backflow preventer
• Connect discharge pipe (DN 40 plastics pipe or R1"
threaded pipe) to discharge tundish 
• The pressure gauge connection is fitted on the inlet
side of the backflow preventer.
CAUTION!
If there is a possibility, that at zero flow the water in
the downstream system may be heated, then a
safety valve must be fitted to allow for water
expansion and prevent the pressure rising above
the permitted level.
CAUTION!
If soldered union connectors are used the backflow
preventer must not be connected to the union
connectors during soldering.
4.3 Commissioning
As supplied the backflow preventer is in the shut-off position
Commissioning should be in the following sequence:
1. Slowly open shut-off valve  (when the minimum
inlet pressure is reached the backflow preventer goes
to the flow position)
2. Slowly open shut-off valve  . Fill and vent the
system.
4
must be provided above the
min
11/4" to 2"
150 mm
MU1H-1205GE23 R0320