Maintenance - Honeywell BA295 Installation Instruction

3. Attach drain pipe to discharge connection (plastic
pipe HT 50)
4. The appliance is ready for use

8. Maintenance

We recommend a planned maintenance
contract with an installation company
Maintenance of backflow preventer must be
carried out by authorized personnel!
8.1 Inspection
• 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)
8.1.1 Testing discharge valve
Take note of the instructions of the test control
unit TKA295 or TK295
1. Procedure according to instruction of the test control
unit TKA295 resp. TK295
Quick test for the discharge valve:
• Lower the inlet pressure
o if the discharge valve opens (it drops), the
function is o.k.
8.1.2 Testing outlet check valve
Take note of the instructions of the test control
unit TKA295 or TK295
1. Procedure according to instruction of the test control
unit TKA295 resp. TK295
8.2 Maintenance
We recommend a planned maintenance
contract with an installation company
In accordance with DIN EN 1717 a regular mainte-
nance must be taken.
Frequency: every 1-3 years (depending on local
operating conditions)
To be carried out by an installation company
8.2.1 Cartridge insert
1. Close shutoff valve on inlet
2. Release pressure on outlet side (e.g. through water
tap)
3. Close shut off valve on outlet
4. Remove ball valve
5. Remove cover
6. Replace cartridge insert and lip seal
• Don't disassemble cartridge insert to indivi-
dual parts!
Honeywell GmbH
GB
7. Reassemble in reverse order
o push down the cartridge insert till it snaps in
8. Test function (see chapter inspection)
8.2.2 Check valve
1. Close shutoff valve on inlet
2. Release pressure on outlet side (e.g. through water
tap)
3. Close shut off valve on outlet
4. Remove ball valve
5. Remove cover
6. Exchange check valve
Check valve will be destroyed after demounting
7. Test function (see chapter inspection)
8.3 Cleaning
• To be carried out by an installation company
• To be carried out by the operator
If necessary, the cartridge insert can be cleaned.
Do not use any cleaning agents containing
solvents and/or alcohol to clean the plastic
parts!
Detergents must not be allowed to enter the
environment or the sewerage system!
1. Close shutoff valve on inlet
2. Release pressure on outlet side (e.g. through water
tap)
3. Close shut off valve on outlet
4. Remove ball valve
5. Remove cover
6. Clean or replace cartridge insert and lip seal
• Don't disassemble cartridge insert to indivi-
dual parts!
7. Reassemble in reverse order
o push down the cartridge insert till it snaps in
8. Test function (see chapter inspection)
7 MU1H-1220GE23 R1207