Design

• High efficiency, single stage, low pressure, inline centrifugal pump
• Supplied with EC motor and electronic duty adaptation
• Available in glanded construction , mechanical shaft seal, and flanged connections

Application

Hot water heating systems, air conditioning, closed cooling circuits, industrial circulating systems without abrasive subtances.

Type key

Special features/product advantages

• Innovative high-efficiency pump for highest efficiency, based on a new Wilo glanded pump design
• Highly efficient EC motor (efficiency = IE4 limit values accordingto IEC TS 60034-31 Ed.1)
• New hydraulics ideally adjusted to the EC motor technology
• Integrated electronic power adjustment
• Extremely compact and space-saving design
• Easy-to-operate due to established red button technology and display
• Different control modes ?p-c, ?p-v, PID and n=const. (manual control mode)
• Control range is up to three times as high as for conventional electronically controlled pumps
• Analogue interfaces 0-10 V, 2-10V, 0-20 mA, 4-20 mA
• Optional interfaces for bus communication using plug-in IF-Modules
• Integrated double pump management with efficiency-optimized peak-load activation
• Two configurable signal relays for run and fault signals
• Fault management tailored to heating and air-conditioning applications
• Access disable on the pump can be activated
• Integrated full motor protection
• High corrosion protection due to cataphoretic coating
• Condensate drainage as standard
• Integral threaded pump feet for foundation installation

Technical data

• Permitted temperature range of the fluid:-4°F to 284°F [-20 °C to +140 °C]
• Mains connection
  • 3~460 V (±10 %), 60 Hz
  • 3~400 V (±10 %), 50/60 Hz
  • 3~380 V (-5 %/+10 %), 50/60 Hz
• Protection class IP 55, insulation class F
• Max. operating pressure 232 psi [16 bar] to 248°F [120 °C], 189 psi [13 bar] to 284°F [140 °C]

Materials

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

Equipment/function

Operating modes

• Δp-c for constant differential pressure
• Δp-v for variable differential pressure
• PID control
• Manual control mode (n=constant)

Manual operation level

• Red button and display

Manual functions

• Differential pressure setpoint setting
• Speed setting (manual control mode)
• Operating mode setting
• Pump ON/OFF setting
• Configuration of all operating parameters
• Error acknowledgement

External control functions

• "Overriding Off" control input
• "External pump cycling" control input (effective only in double pump operation mode)
• Analogue input 0–10 V, 0–20 mA for manual control mode (DDC) and remote setpoint adjustment
• Analogue input 2–10 V, 4–20 mA for manual control mode (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 IF-modules/IR monitor Plug-in position for Wilo IF-modules (Modbus, BACnet, CAN, PLR, LON) for connection to building automation

Protection functions

• Full motor protection with integrated trip electronics
• Access disable

Dual pump management (double pump or 2 x single pump)

• 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)

Equipment

• Wrench attachment point at pump body (for threaded pipe union pumps with P₂< 100 W)
• For flange-end pumps: Flange versions
  • Standard version for DN 32 to DN 65 pumps: PN 6/10 combination flange (PN 16 flange according to EN 1092-2) for PN 6 and PN 16 counter flanges
  • Standard version for DN 80/DN 100 pumps: PN 6 flange (designed for PN 16 according to EN 1092-2) for PN 6 counter flange
  • Special version for DN 32 to DN 100 pumps: PN 16 flange (according to EN 1092-2) for PN 16 counter flange
• Plug-in position for optional extension with Wilo-IF‐Modules
• Standard thermal insulation for heating applications

Scope of delivery

• Pump
• Installation, Operation, and Maintenance Manual

Options

R1 version without differential pressure sensor