Behncke QWT - 6 Maintenance;Repair; Winter Storage of the WHE in Frost-Free Areas; Winter Storage of the WHE in Areas Exposed to Freezing; Heat Exchanger in Vertical Layout

Water/water heat exchanger – QWT, WTI, SWT, SWT-T
01.07.2015
20
Maintenance/repair
6 Maintenance/repair
Inspect the heat exchanger and connections for leaks once a week.
6.1 Winter storage of the WHE in frost-free areas
CAUTION!
Changes to technical systems by unqualified persons may result in injuries and
property damage.
If decommissioned in frost-free areas, the heat exchanger must be completely
filled with water.
6.2 Winter storage of the WHE in areas exposed to freezing
The heat exchanger can be stored under freezing conditions after the following preparations.
• Close stop valves in both water circuits.
• Drain the heat exchanger and connecting pipes to the stop valves.
6.2.1 Heat exchanger in vertical layout
• Completely drain the heat exchanger via the drain fittings.
6.2.2 Heat exchanger in horizontal layout
• Remove the heat exchanger in horizontal layout.
• Rinse the heat exchanger to remove contamination, and store dry.