Honeywell GmbH
6
MU1H-1241GE23 R0710
GB
8. Maintenance
8.1 Inspection
8.1.1 Testing discharge valve
1. Fit blind plug on outlet
1. Procedure according to instruction of the test control
unit TKA295 resp. TK295
8.1.2 Testing outlet check valve
1. Fit blind plug on outlet
1. Procedure according to instruction of the test control
unit TKA295 resp. TK295
8.2 Maintenance
8.2.1 Cartridge insert
2. Close inlet shutoff valve
o Pressure in backflow preventer relieves
3. Unscrew the plug
4. Exchange cartridge insert, lip seal and filter
o push down the cartridge insert till it snaps in
5. Reassemble in reverse order
6. Test function (see chapter inspection)
8.2.2 Check valve
7. Close inlet shutoff valve
o Pressure in backflow preventer relieves
8. Exchange shutoff facility
9. Test function (see chapter inspection)
8.3 Cleaning
If necessary, the cartridge insert and the strainer can
be cleaned.
10.Close inlet shutoff valve
o Pressure in backflow preventer relieves
11.Unscrew the plug
12.Remove strainer
13.Remove cartridge insert
14.Clean cartridge insert and strainer
15.Reinsert cartridge insert.
16.Reassemble in reverse order
17.Test function (see chapter inspection)
9. Disposal
• Dezincification resistant brass housing, fully
chromed
• High-quality synthetic material valve cartridge
• High-quality synthetic material or red bronze check
valves
• Sealing elements made of elastomer materials
suitable for drinking water
We recommend a planned maintenance contract
with an installation company
Disassemble ball valves after maintenance!
• Frequency: every 6 month (depending on local
operating conditions)
• To be carried out by an installation company
• Inspection with a test control unit and mainte-
nance-set (see accessories)
For testing the shutoff valve must be fully open.
Take note of the instructions of the test control unit
TKA295 or TK295
Quick test for the discharge valve:
• Lower the inlet pressure
o if the discharge valve opens (it drops), the
function is o.k.
For testing the shutoff valve must be fully open.
Take note of the instructions of the test control unit
TKA295 or TK295
• Frequency: at least once a year (depending on
local operating conditions)
• To be carried out by an installation company
• Don’t disassemble cartridge insert to indivi-
dual parts!
• To be carried out by an installation company
• To be carried out by the operator
Do not use any cleaning agents containing
solvents and/or alcohol to clean the plastic parts!
Detergents must not be allowed to enter the envi-
ronment or the sewerage system!
• Don’t disassemble cartridge insert to indivi-
dual parts!
Observe the local requirements regarding
correct waste recycling/disposal!