resideo Braukmann NK300S, Installation Instructions Manual

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GB
MU1H-1556GE23 R0420 3
5 Start-up
5.1 Filling up the system
1. Slowly open shut-off valves on inlet and outlet
Because of casual fluctuation of pressure dripping
water at discharge valve can occur!
This is no malfunction and therefore no reason for
complaint!
5.2 Setting outlet pressure
Pressure reducing valve is set to 1.5 bar by factory.
The pressure of the system should be at least 2 bar
above the set outlet pressure.
1. Close ball valve on inlet and outlet.
2. Release pressure on outlet side
• e.g. loosen the pressure gauge
• afterwards screw in pressure gauge again
3. Slacken tension in compression spring
• Turn adjustment handle counter clockwise (-) until
it does not move any more
4. Slowly open shut-off valve on inlet
5. Turn adjuster knob until the manometer shows the
desired value
6. Slowly open shut-off valve on outlet
6 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:
6.1 Inspection
Inspection with a test control unit and maintenance-
set
6.1.1 Testing pressure reducing valve
1. Close shut-off valve on outlet
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 (See 6.2 Maintenance)
3. Slowly open shut-off valve on outlet
6.1.2 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.
6.1.3 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
6.2 Maintenance
Do not use any cleansers that contain solvents and/or
alcohol for cleaning the plastic parts, because this can
cause damage to the plastic components - water
damage could result.
Detergents must not be allowed to enter the
environment or the sewerage system!
6.2.1 Valve insert
1. Close shut-off valve on inlet and outlet
2. Release pressure on outlet side
• e.g. loosen the closing plug 1
• afterwards screw in closing plug again
3. Slacken tension in compression spring
• Turn adjustment handle counter clockwise (-) until
it does not move any more
CAUTION!
There is a spring in the spring bonnet. It may cause
injuries if the spring is derailing.
• Make sure tension in compression spring is
slackened!
4. Unscrew spring bonnet
• Use spanner
5. Remove slip ring
6. Remove valve insert with a pair of pliers
7. Check that sealing ring, edge of nozzle and slotted
ring are in good condition, and if necessary replace
the entire valve insert
8. Reassemble in reverse order
9. Set outlet pressure
6.2.2 Cartridge insert
1. Close shut-off valve on inlet and outlet
2. Remove blanking plugs
3. Backflow preventer is released
4. Remove cover from cartridge insert
5. Remove cartridge insert and strainer
6. Remove strainer from cartridge insert
7. Clean or replace strainer and cartridge insert