High-efficiency close-coupled pump with EC motor of energy efficiency class IE5 in accordance with IEC 60034-30-2 and electronic power adjustment in glanded pump design. The pump is configured as a single-stage low-pressure centrifugal pump with flange connection and mechanical seal. The Stratos GIGA B has been predominantly designed for pumping heating water (acc. to VDI 2035), chilled water and water-glycol mixtures without abrasive substances in heating, air-conditioning and cooling systems.

Design:

• Single-stage low-pressure centrifugal pump with one-piece shaft in close-coupled design including foot on pump housing
• Flange and housing measurements according to EN 733
• PN 16 flange – drilled according to EN 1092-2
• Pressure measuring connections (R 1/8) for mounted differential pressure sensor (version ...-R1 without differential pressure sensor)
• Pump housing and motor flange with cataphoretic coating as standard
• Mechanical seal for pumping water up to Tmax = +140 °C. Up to T ≤ +40 °C, a glycol admixture of 20 % to 40 % by volume is permissible. An alternative mechanical seal must be provided for water-glycol mixtures with a glycol content of > 40% to max. 50% by volume and a fluid temperature of > +40 °C to max. +120 °C or other fluids that differ from water. When using water-glycol mixtures, the use of an S1 variant with a corresponding mechanical seal is generally recommended.
• Connection voltages: 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

Accessories:

• 1 Mounting bracket with fixation material for installation on a base
• Installation aid for mechanical seal
• IR-Stick
• IF module PLR for connecting to PLR/interface converter
• IF module LON for connection to the LONWORKS network
• IF module BACnet
• IF module Modbus
• IF module CAN
• Control system VR-HVAC
• Control system CCe-HVAC
• Control system SCe-HVAC
• Differential pressure sensor (DDG)

Standard equipment:

• Green button manual operation level for:
  • Pump On/Off
  • Selecting the control mode: Δp-c (constant differential pressure), Δp-v (variable differential pressure), PID controller, n-constant (constant speed)
  • Setpoint and speed adjustment
  • Configuration of operating parameters
  • Fault acknowledgement
• Pump display for indication of:
  • Control mode
  • Setpoint (e.g. differential pressure or speed)
  • Error and warning messages
  • Actual values (e.g. power consumption, actual value of the sensor)
  • Operating data (e.g. operating hours, energy consumption)
  • Status data (e.g. status of SSM and SBM relay)
  • Device data (e.g. pump name)
  • Operating mode (for Y-piece installation only: main/standby operation, parallel operation)

Additional functions:

Interfaces:

• 1x “Overriding Off” control input,
• 1x “External pump cycling” (effective only in twin-head pump operation),
• 1x Analogue input 0–10 V, 2–10 V, 0–20 mA, 4–20 mA for constant speed (DDC) or remote setpoint adjustment,
• 1x Analogue input 0–10 V, 2–10 V, 0–20 mA, 4–20 mA for actual value signal from pressure sensor,
• IR interface for wireless communication with Wilo-IR-Stick operating and service device,
• Slot for Wilo IF modules for connection to the building automation system,
• Configurable, potential-free fault and operating/standby signal,
• 1x Interface to dual-pump communication
• Three-phase AC motor with frequency converter
• Integrated dual-pump management
• Adjustable time interval for pump cycling (in dual-pump operation)
• Integrated full motor protection
• Different operating modes for heating (HV) or air-conditioning (AC) applications
• Access disable
• Different operation levels: Standard/Service
• Standard condensate drainage holes in the motor housing (closed upon delivery)