Special features/product advantages

• Innovative, high-efficiency pump for maximum overall efficiency with principal dimensions in accordance with EN 733
• High-efficiency EC motor with efficiency class IE5 according to IEC 60034-30-2
• High-efficiency hydraulics, optimally adapted to the EC motor technology, with optimised efficiency, minimum efficiency index (MEI) ≥ 0.7
• Control range is up to three times higher than that of conventional electronically controlled pumps
• Optional interfaces for bus communication using plug-in IF-Modules

Design type

High-efficiency monobloc pump with EC motor and electronic power adjustment in glanded pump design Version as single-stage low-pressure centrifugal pump with flange connection and mechanical seal.

Application

The pumping of heating water (in accordance with VDI 2035), cold water and water-glycol mixtures without abrasive substances in heating, cold water and cooling systems.

Equipment/function

Operating modes

• Δp-c for constant differential pressure
• Δp-v for variable differential pressure
• PID-Control
• Constant speed (n=constant)

Manual operation level

• Green button and display

Manual functions

• Differential pressure setpoint setting
• Setting the speed (manual control mode)
• Setting the operating mode
• Setting the pump ON/OFF
• Configuration of all operating parameters
• Fault acknowledgement

External control functions

• "Overriding Off" control input
• “External pump cycling” control input (only effective in double pump operation)
• Analogue input 0 – 10 V, 0 – 20 mA for constant speed (DDC) and remote setpoint adjustment
• Analogue input 2 – 10 V, 4 – 20 mA for constant speed (DDC) and remote setpoint adjustment
• Analogue input 0 – 10 V for actual value signal from pressure sensor
• Analogue input 2 – 10 V, 0 – 20 mA, 4 – 20 mA for actual value signal from pressure sensor

Signal and display functions

• Collective fault signal SSM
• Collective run signal SBM

Data exchange

• Infrared interface for wireless data exchange with IR-Monitor/IR-Stick
• Plug-in position for Wilo IF-Modules (Modbus, BACnet, CAN, PLR, LON) for connection to building automation

Safety functions

• Full motor protection with integrated trip electronics
• Access disable

Dual pump management (2 x single pump, Y-piece application only)

• Main/standby operation (automatic fault-actuated switchover)
• Pump cycling main/standby operation after 24 hours
• Parallel operation

Scope of delivery

• Pump
• Installation and operating instructions

Type key

Technical data

• Minimum efficiency index (MEI) ≥ 0.7
• Permitted temperature range of the fluid: -20 °C to +140 °C
• Mains connection 3~480 V ±10 %, 50/60 Hz, 3~440 V ±10 %, 50/60 Hz, 3~400 V ±10 %, 50/60 Hz, 3~380 V -5 % +10 %, 50/60 Hz
• Protection class IP55
• Max. operating pressure 16 bar up to +120 °C, 13 bar up to +140 °C

Materials

• Pump housing and lantern: EN-GJL-250
• Impeller: PPS-GF40
• Shaft: 1.4122
• Mechanical seal: AQEGG; other mechanical seals on request