MU1H-1248GE23 R1114
6
Honeywell GmbH
GB
8. Maintenance
8.1. Inspection
Inspection with a test control unit and maintenance-set (see
accessories)
8.1.1. Testing discharge valve
1. Install test adapter on outlet (see maintenance-set)
2. Procedure according to instruction of the test control unit
TKA295 resp. TK295
8.1.2. Testing outlet check valve
1. Install test adapter on outlet (see maintenance-set)
2. Procedure according to instruction of the test control unit
TKA295 resp. TK295
8.2. Maintenance
8.2.1. BA-functional parts
1. Close shutoff valve upstream the valve
2. Slightly open test plug to release pressure
3. Remove discharge connection
4. Remove seal brackets
5. Loosen retaining clip
6. Pull replacement unit downwards
• Replace complete replacement unit
7. Insert new replacement unit
8. Install new retaining clip and seal brackets
9. Insert discharge connection
10. Open shutoff valve upstream the valve
8.3. Operational maintenance
8.3.1. Strainer
If necessary, the strainer can be cleaned or replaced.
1. Close shutoff valve upstream the valve
2. Slightly open test plug to release pressure
3. Remove seal brackets
4. Loosen retaining clip
5. Pull lower housing part downwards
6. Remove strainer and clean or replace it
7. Insert lower housing part
8. Install retaining clip and seal brackets
9. Open shutoff valve upstream the valve
8.3.2. Cartridge insert
If necessary, the cartridge insert can be cleaned or replaced.
1. Close shutoff valve upstream the valve
2. Slightly open test plug to release pressure
3. Remove seal brackets
4. Loosen retaining clip
5. Pull lower housing part downwards
6. Remove cartridge insert and clean or replace it
7. Reinsert cartridge insert
• push down the cartridge insert till it snaps in
8. Insert lower housing part
9. Install retaining clip and seal brackets
10. Open shutoff valve upstream the valve
11. Test function (see chapter inspection)
8.3.3. Check valve
If necessary, the outlet check valve can be replaced.
1. Close shutoff valve upstream the valve
2. Slightly open test plug to release pressure
3. Remove threaded adapter
4. Remove and exchange check valve
5. Install threaded adapter
6. Open shutoff valve upstream the valve
7. Test function (see chapter inspection)
9. Disposal
• Dezincification resistant brass housing
• High-quality synthetic material valve cartridge
• High-grade synthetic material check valve
• Sealing elements made of elastomer materials suitable for
drinking water
We recommend a planned maintenance contract with
an installation company
• Frequency: every 6 month (depending on local
operating conditions)
• To be carried out by an installation company
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
- 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
• To be carried out by an installation company
• To be carried out by the operator
• Frequency: at least once a year (depending on local
operating conditions)
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.
Observe the local requirements regarding correct waste
recycling/disposal!