District heating leakage protection

System WLP-2

System WLP-2

Application

Closed heating installations in institutions, factories and apartment buildings.

Components:
  • WLP-2 computer
  • Intake and outlet flow meters
  • Cutoff valve(s)
  • Check valve for Return pipe

Options
E: Technical energy calculation
F: Freeze protection during cutoff
P: Cut-off on operating pressure fault
V: Liquid sensor type LS-X for
    point protection (max 4/6/8)
spacer

Monitoring functions

Leakage:
Forward and Return flows are monitored continuously, compensating for volume and meter differences. If a preset flow difference limit is exceeded, leakage alarm is issued, and the installation is cut off.

Seepage: OptiTight®
The patented OptiTight® mechanism employs individual control of the cut-off valves to test the installation tightness one or more times daily, whereby even minute seepage may be detected.

Alarm functions

Cut-off:
Cutoff valves are closed in the alarm state, which is indicated on the front panel, and a detailed error description is displayed.

Alarm Outputs:
WLP-2 features four uncommitted alarm relay switching outputs, three of which may be configured to selectively respond to any given error type.

Remote Signalling:
WLP-2 may be delivered with an analog or GSM/GPRS modem, whereby on alarm a callout can be made to modems or other technical equipment, or a text message can be sent.
spacer
Valves:
All systems feature actuated forward and return cutoff valves, and perform a complete tightness check of components and installation (OptiTight®).
Systems may be delivered on request with a drain valve for particularly vulnerable buildings.

System error:
WLP-2 continually monitors for meter and supply errors, and regularly for valve errors.

Registration:
WLP-2 continuously logs events, system changes, key values and consumption characteristics which may be read out in the display or via remote communication.

SCADA/BM systems:
WLP-2 features scalable outputs for flow meter impulse repetition and (Opt. E) 1kWh energy impulse output for SCADA/BM systems.

Further technical information

Elaborate WLP system description here.

Download WLP-2 datasheet in pdf-format

Download WLP system description in pdf-format

spacer