Setting Outlet Pressure; Pressure Reducing Valve - Honeywell NK295C Notice De Montage

6.2. Assembly instructions
To avoid stagnating water, the refilling combination must
be connected as directly as possible to the supply line!
The guidelines of drinking water regulations apply for
installation!
1. Thoroughly flush pipework
2. Remove the isolation shell
3. Install refilling combination
• Install in horizontal pipework with discharge connection
directed downwards
• Note flow direction (indicated by arrow)
• Install without tension or bending stresses
4. Attach drain pipe to discharge connection (plastic pipe HT
40)
5. Install isolation shell
7. Start-up

7.1. Setting outlet pressure

1. Close shut off valve on inlet and outlet
2. Slacken tension in compression spring
• Insert the available adjuster knob and turn to the left
3. Open and close drain cock at the shut off ball valve down-
stream.
Pressure reducing valve is decompressed.
4. Slowly open shutoff valve on inlet
5. Turn adjuster knob until the manometer shows the
desired value.
6. Remove adjuster knob
7. Slowly open shutoff valve on outlet
8. Maintenance
We recommend a planned maintenance contract with an
installation company
In accordance with DIN EN 1717 a regular maintenance must
be taken.
8.1. Inspection

8.1.1. Pressure reducing valve

Interval: once a year
To be carried out by an installation company or the
operator.
1. Close ball valve on the outlet side of the refilling combina-
tion
2. Check outlet pressure on pressure gauge when no flow is
occurring
• If the pressure is increasing slowly, the valve may be
dirty or defective. In this instance, carry out servicing
and cleaning
3. Slowly open the ball valve on the outlet side of the refilling
combination
MU1H-1548GE23 R1012
GB
8.1.2. System disconnector
Interval: once a year
To be carried out by an installation company or the
operator.
1. Close shutoff 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.
Does not open the discharge valve Replace refilling
combination!
3. Close the drain point on the inlet side of the shut-off ball
valve
4. Slowly open shutoff valve on inlet
8.1.3. Leak-tightness
Interval: once a year
To be carried out by an installation company or the
operator.
1. Open sampling point.
Refilling combination changes into flow position.
2. Optical control refilling combination of location and tight-
ness.
If water exits at the refilling combination, call the tech-
nical customer support service!
9. Disposal
• Dezincification-resistant brass housing
• Discharge connection, valve cartridge, valve insert and
spring bonnet in high-grade synthetic material
• High-grade synthetic material check valve
• Seals made of NBR
• Spring steel adjustment spring
• Isolation shell in EPP
Observe the local requirements regarding correct waste
recycling/disposal!
6 Honeywell GmbH