Custom control system

Summary

Product identification

• Series: DP-Control
• Type: DP-Control
• Manufacturer: DP-Pumps
• Article number: 77870040

Intended Use and Functioning

The DP-Control unit is designed for controlling a Hydro-Unit system comprising DP-Control pumps within its specified working range. It is suitable for:

• Hydro-Unit, Break-Unit, or Fire-Unit installations with 1, 2, or 3 pumps.
• The WSD-Sensor option is for installations with a maximum of 3 membrane tanks.

The control unit senses system pressure to switch pumps on or off, optimizing switch-off delay for energy saving. It ensures equal operating hours across all pumps, including backup pumps, by prioritizing the pump with the fewest hours for activation and the most hours for deactivation. An automatic test run procedure prevents pumps from prolonged inactivity.

Optional features:

• WSD-Sensor: Generates a failure message if there's insufficient refreshment of the membrane switch vessel, a defective membrane, no air in the vessel, or incorrect installation/settings.
• Temperature-sensor: Can generate a temperature-dependent failure message.

Custom settings and parameters are accessible via a service port using a special service port cable (Art. nr. 6147117698).

Operating limits

DP-Control

• Maximum ambient temperature: 50 °C
• Relative atmospheric humidity: 20 - 90 % (no condensation)
• Maximum height: 1000 m above sea level

WSD-Sensor (option)

• Maximum ambient temperature: 30 °C
• Medium temperature: 5 - 30 °C
• Switching flow: ± 14 l/min

Electrical

DP-Control

• Connecting voltage: 1 x 230 V (± 10%)
• Frequency: 50 - 60 ± 5% Hz
• Relay outputs: 5 max. A
• Fuse: 500 mA (250V)

WSD-Sensor (option)

• Voltage and frequency are not specified in the extracted text.

Mechanical / Hydraulic

• Dimensions (HxWxD): 157 x 187 x 51 mm
• Protection class: IP55 (when built into an IP55 control panel)

Parameters and Settings

The DP-Control unit is factory programmed with default settings. A comprehensive list of parameters is available for configuration, including:

• Configuration: Number of pumps (1, 2, or 3), Inlet type (Switch, Flow switch), Discharge configuration (Fixed speed), WSD configuration (OFF, 1-3 tanks, with/without temperature sensor).
• System settings: Automatic run-dry protection (RDP) reset, pressure sensor calibration (4 mA, 20 mA), number of pumps to start on sensor failure, maximum power limitation.
• WSD settings: Number of refreshments and refresh time span for membrane tanks, average room temperature and its time span.
• Pressure settings: System pressure set point, hysteresis (pressure differential), maximum set point, high/low pressure alarm thresholds and actions (shut down or notification only), pressure flow control.
• Time settings: Optimum number of pump starts per hour, minimum/maximum run time, start/stop delays, RDP delay, high/low alarm delay, WSD pulse lengths.
• Check run mode: Interval-based check runs for pumps not in operation, check run interval, and duration.
• Maintenance interval: Setting for service/maintenance intervals.

Factory Default Settings: Specific factory default values for various installation types (e.g., HU2, HU3, HU2 PLUS/HR, with or without WSD/TEMP options) are available for parameters such as number of pumps, WSD mode, set point, bandwidth, and run times. See the official PDF for exact tabulated values.

EC Declaration of Conformity

The DP-Control unit, as a standalone product, conforms to the following standards and directives:

• Standards: EN 61000-6-1, EN 61000-6-3, EN 61000-6-4
• Directives: Low voltage directive 2014/35/EU, EMC directive 2014/30/EU, RoHS II 2011/65/EU

If the control unit is integrated into an appliance or other installations, it should not be operated until the complete appliance complies with these directives.

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Disclaimer: This summary is based solely on the provided text extract. It may not include all figures, footnotes, or the latest revisions found in the complete OEM PDF datasheet. Contractual data must always match the specific OEM PDF revision used for the project.

Official datasheet (PDF)

Lenntech datasheet mirror