Forced-flow circulation of sanitary blocks when not being used as intended - no consumption meter in floor
KEMPER KHS-hygiene flushing and KHS-Multi-Circ Distribution Unit in the riser branch
KHS-hygiene flushing is used in riser branch installations up to five floors and ten sanitary blocks. Two KHS-hygiene flushing systems each are recommended in the upper sanitary blocks. The flushing volume flow of 0.24 l/s (one KHS hygiene flushing = 0.12 l/s) is implemented independent of the precompression. At this volume flow, a sufficiently large flow velocity can be ensured to be able to flawlessly operate the piping system hygienically.
To achieve use of the CW system as intended, KHS-Multi-Circ Distribution Units are integrated in the CW riser branches. Based on their structure with simultaneous looping of all CW consumers they ensure there is a complete flow through of the sanitary block during flushing in normal operation (e.g., taking a shower). That also applies to a controlled flushing using KHS-hygiene flushing.
Automated riser branch flushing with consumption measurement
- e.g. apartment construction
Drinking water hygiene by flushing in the riser branch and continuous withdrawal in the sanitary blocks
Securely flow in the distribution and riser lines along with integrating suitable KEMPER KHS-VAV/-plus Maximum flow isolating ball valve with spring-reset servo drive actuators at the end of the branch ensures use as intended in the individual sanitary blocks by regularly activating the tapping points.
Recommendation:
To use the accruing flushing water, collect the water in a storage tank (e.g. systems for using rain water, watering outdoor facilities, etc.)
Forced-flow circulation of sanitary blocks for multi-storey buildings - without a consumption meter in floor
Operating method: time controlled flushing process
In the time-controlled flushing process, flushing can be present and logged on defined days of the week and at defined times (e.g., Monday 10 min. flush duration from 12 pm to 12:10 pm).
Operating method: volume controlled flushing process
Drinking water hygiene by periodically flushing the CDW system with a preset flush volume
In the volume-controlled flushing process, the KEMPER KHS-Logic Control System can be programmed to the calculated flushing volume. The entire CDW system can be flushed in that manner. For this system variant, the KHS-vortex flow sensor (with a measuring range of 5-100 l/min. or 10-200 l/min.) is needed in combination with one each terminal flushing valve (KHS-VAV-plus Maximum flow isolating ball valve with spring-reset servo drive).
Operating method: temperature controlled flushing process
Drinking water hygiene by flushing the CDW system up to temperature constancy at any desired point in the system
In the temperature-controlled flushing process, a reference temperature (e.g. at the CDW building connection) is constantly compared with several temperatures in the piping system (preferably in the feed line before the most remote sanitary blocks). The system control triggers flushing if the temperature difference exceeds the preset target temperature difference.
Example:
CDW at the building connection 15 °C, CDW most remote sanitary block 21 °C, default target temperature difference 3 K.
KHS-Logic Control System reaction
Flushing is triggered until the target temperature difference of 3 K is reached.
Result
CDW at the building connection 15 °C, CDW most remote sanitary block 18 °C
Flushing terminal or seldom-flowed pipeline sections
Drinking water hygiene by flushing terminal pipelines
Recommendation:
To use the accruing flushing water, collect the water in a storage tank (e.g. systems for using rainwater, watering outdoor facilities, etc.)
To use the accruing flushing water, collect the water in a storage tank (e.g. systems for using rainwater, watering outdoor facilities, etc.)