Description
Construction type
Electronically regulated ventilated motor double pump with inline construction, flange connection and automatic performance adaptation
Application
Pumping of heating water (according to VDI 2035), cold water and abrasive-free water/glycol mixtures in heating, air conditioning and refrigeration systems.
Equipment/Operation
Modes of operation
·Δp-c for constant differential pressure
·Δp-v for variable differential pressure
·PID Control
·Operation as a servo motor (n = constant)
Command Level
·Green button and display
Manual functions
·Setting the differential pressure delivery value
·Speed setting (manual selection mode)
·Setting the Operating Mode
·Pump on/off setting
·Configuration of all operating parameters
·Confirm errors
External control functions
·Control input "Priority Off"
·Control input "external pump exchange" (only effective with double pump operation)
·Analog input 0–10 V, 0–20 mA for servo motor operation (DDC) and remote control of the delivery value
·2–10 V, 4–20 mA analog input for servo motor operation (DDC) and remote control of the delivery value
·0–10 V analog input for pressure sensor true value signal
·2–10 V, 0–20 mA, 4–20 mA analog input for pressure sensor true value signal
Signaling and display functions
·SSM Cumulative Block Signaling
·Cumulative SBM Operation Signaling
Data exchange
·Infrared communication port for wireless data exchange with IR monitor/IR stick
·Plug-in compartment for Wilo IF modules (Modbus, BACnet, CAN, PLR, LON) for connection to the building automation system
Safety features
·Integral motor protection with integrated trip electronics
·Access Lock
Double pump management (double pump or 2 single pumps)
·Main/backup operation (automatic pump exchange for block)
·Main/backup operation pump exchange after 24 hours
·Pump addition function
·Parallel operation (addition/deactivation, optimized peak load at best performance)
Key to reading
Example
|
DL-E 50/170-7,5/2-R1
|
DL-E
|
Double inline pump with electronic control
|
50
|
Nominal diameter DN of the mouth
|
170
|
Nominal impeller diameter
|
7,5
|
Rated power of the P2 engine in kW
|
2
|
Number of poles
|
R1
|
Version without pressure sensor
|
Technical data
·Permissible temperature range from -20 °C to +140 °C
·Mains power supply
or 3~440 V ±10%, 50/60 Hz
or 3~400 V ±10 %, 50/60 Hz
or 3~380 V -5 % +10 %, 50/60 Hz
·Compliance with electromagnetic compatibility without additional measures:
or Electromagnetic interference emission for residential environments according to EN 61800-3:2018
or Interference immunity for industrial environments according to EN 61800-3:2018
·IP55 rating
·Nominal diameter from DN 40 to DN 200
·Max. operating pressure 16 bar up to +120 °C, 13 bar up to +140 °C
Materials
·Pump body and lantern: EN-GJL-250
·Impeller:
or Standard Version: EN-GJL-200
or Special version: CuSn 10 bronze
·Tree: 1.4122
·Mechanical seal: AQEGG; other mechanical seals on request
Construction
Single-stage double pump with low head in inline version with
·Changeover valve
·Mechanical seal
·Flange connection
·Lantern
·Joint
·Engine with integrated electronic speed control
Supply
·Pump
·Assembly, use and maintenance instructions
Options
·Variant ...-R1 without differential pressure transducer
·Variant ...-L1 with bronze impeller (for an extra charge)
Fixings
·3 shelves with fixing material for base mounting
·Blind flanges for double pump casing
·IR Monitor, IR Pen
·PLR IF module for connection to PLR/communication port converter
·LON IF module for connection to the LONWORKS network
·BACnet IF Form
·Modbus IF module
·IF CAN module
·VR-HVAC control system
·CCe-HVAC control system
·SCe-HVAC control system
·Pressure Difference Transducer (DDG)