Rectifying problems
35
8
Rectifying problems
Cleaning the strainer
If the performance of the heat transfer station
decreases during operation, often the strainer is
dirty. Therefore, clean the strainer first before carrying
out other measures.
The strainers are located on the primary and
secondary side. The following describes the cleaning
of the strainer on the primary side. This applies
accordingly to the secondary side.
1. Close the ball valves for flow and return of the
primary and secondary side in order to limit wa-
ter leakage.
2. Carefully remove the front panel.
3. Remove the cap on the strainer and catch the
escaping water with a towel. Hot water may leak
out.
Fig. 8-1: Strainer on the primary side
Fig. 8-2: Strainer on the secondary side
4. Clean the strainer and then reinsert it.
Fig. 8-3: Strainer
5. Fit the sealing cap and tighten it with a maximum
of 20-30 Nm. Do not use pipe wrenches for
tightening.
6. Reopen the flow and return ball valves.
