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 twin-head 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 pumps):

• Main/standby operation (automatic fault-actuated switchover)
• Pump cycling main/standby operation after 24 hours
• Parallel operation
• Parallel operation (efficiency-optimised peak-load activation and deactivation)

Scope of delivery:

• Pump
• Installation and operating instructions

Technical data:

• 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
• Nominal diameter DN 40 to DN 100
• 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 or EN-GJL-200 depending on the type
• Shaft: 1.4122
• Mechanical seal: AQEGG; other mechanical seals on request