Wilo-Varios PICO-STG

The most versatile replacement pump of all time.

The Wilo-Varios PICO-STG is the universal replacement solution in the heating, air conditioning and cooling sector for residential dwellings, as well as for solar and geothermal installations. Either working in standard mode or external control mode it facilitates replacement also thanks to the Sync function to adopt the characteristic curves from the replaced pump. Its compact design, the adjustable Electrical connection and simple HMI with Green Button Technology make installation and commissioning particularly easy.

Your advantages

  • The most compatible replacement solution for all applications, including solar and geothermal, thanks to compact design, innovative control modes (such as iPWM) and the new Sync function
  • Maximum operating convenience thanks to its LED display and Green Button Technology featuring a button for control mode and a button for setting the pump
  • Easy installation owing to a compact design, adjustable Electrical connections and maintenance functions such as venting
  • Maximum operational reliability based on proven technology
Wilo-Varios PICO STG_Feature_1_EN
Wilo-Varios PICO STG_Feature_2_EN
Wilo-Varios PICO STG_Feature_3_EN
Installer Sascha

"I always have a Varios PICO-STG in my car. Thus I always have the perfect solution at hand if the customer has a broken pump."

The Wilo-Varios PICO-STG Sync function:

The Wilo-Varios PICO-STG includes a variety of Wilo pumps and their individual pump curves. The pump curve of the Wilo pump to be replaced can be reproduced by the Sync function using the Sync function Assistant here or in the Wilo-Wilo-Assistant App.

As today with Yonos PICO or Stratos PICO, Varios PICO-STG can be of course used also as replacement pump for comparable products from competition.

But only when replacing Wilo-pumps, the additional feature “Sync function” can be used to increase compatibility.

These includes the stand alone pumps Wilo-Star RS, Wilo-Star STG, Wilo-Stratos ECO, Wilo-Yonos PICO, Wilo Yonos PICO-STG Wilo-Stratos PICO and the integrated pumps Wilo-RS, Wilo-Yonos PARA, Wilo-Yonos PARA RKC, Wilo-Yonos PARA RKA and Wilo-Yonos PARA PWM.

In doubt please refer to the product list in the Sync function tool.

Varios PICO Sync-Funktion

Only 3 Steps necessary with the Sync Function Assistant:

1) Check if your old Wilo-pump curves are included in Sync function database.

2) Follow the guided instructions of the Sync Function Assistant step by step.

3) If the programming is complete please to not forget to set the pump correctly and select the desired characteristic curve in operating mode.

Use the Sync function assistant also for your mobile devices.

The “Wilo Assistant” makes the entire world of high-efficiency pump technology available on smartphones and tablets for sanitation, heating and air-conditioning specialists and specialist consultants of technical building equipment.

The free “Wilo Assistant” app is an easy-to-use mobile application and offers support in designing, customer consultation and installation. It also delivers a wealth of strong sales arguments for energy-efficient, economical and environmentally friendly pump technology for heating, air conditioning and domestic hot-water circulation.

Download the Wilo-Assistant as an app version on your mobile phone!

Download on the App Store (iOS)Android App on Google play
Sync function screen of the Wilo Assistant

Series description

Your advantages

  • The most compatible replacement solution for all applications, including solar and geothermal, thanks to compact design, innovative control modes (such as iPWM) and the new Sync function
  • Maximum operating convenience thanks to its LED display and Green Button Technology featuring a button for control mode and a button for setting the pump
  • Easy installation owing to a compact design, adjustable Electrical connections and maintenance functions such as venting
  • Maximum operational reliability based on proven technology

The most versatile replacement pump of all time.

The Wilo-Varios PICO-STG is the universal replacement solution in the heating, air conditioning and cooling sector for residential dwellings, as well as for solar and geothermal installations. Either working in standard mode or external control mode it facilitates replacement also thanks to the Sync function to adopt the characteristic curves from the replaced pump. Its compact design, the adjustable Electrical connection and simple HMI with Green Button Technology make installation and commissioning particularly easy.

Construction

Glandless circulator with screwed connection, blocking-current proof EC motor and integrated electronic power control.

Application

All hot-water heating systems, air-conditioning applications, industrial circulation systems. Primary circuits of solar and geothermal energy.

Equipment/function

Operating modes

  • Constant differential pressure (3 pre-defined characteristic curves)
  • Variable differential pressure (3 pre-defined characteristic curves)
  • Constant speed (3 speed stages)
  • External control by iPWM signal
    • iPWM GT (Heating/Geothermal, not with Varios PICO-STG .../1-13)
    • iPWM ST (Solar)

Manual functions

  • Setting the operating mode in accordance with the application
  • Setting of pump output (curve)
  • Setting the constant speed
  • Activation of sync function and LED coding
  • Pump venting function
  • Manual restart

Automatic functions

  • Automatic restart

Signal and display functions

  • Display of selected control mode
  • Display of selected stage of control mode or iPWM type
  • Display of activated sync function and LED coding
  • Status display of the manual restart or pump venting function
  • Operation and fault display

Equipment

  • Cataphoretically-coated pump housing
  • Wrench attachment point on pump body
  • Electrical connection cable with 3-pole pump plug and Wilo-Connector
  • iPWM connection
  • Pump venting function
  • Manual restart
  • Blocking-current proof motor
  • Particle filter

Scope of delivery

  • Pump
  • Cable with 3-pole pump plug and Wilo-Connector connection
  • Wilo-Connector
  • Gaskets
  • Installation and operating instructions

Type key

Example:

Wilo-Varios PICO-STG 25/1-8-130

Varios PICO

High-efficiency pump (screw-end pump), electronically controlled

-STG

Compatible with heating, solar and geothermal application

25/

Nominal connection diameter

1-8

Nominal delivery head range [m]

130

Port-to-port length

Technical data

  • Fluid temperature:
    • -20 °C to +95 °C (Heating/Geothermal)
    • -10 °C to +110 °C (Solar)
  • Mains connection 1~230 V, 50 Hz
  • Protection class: IPX4D
  • Screwed connection Rp ½, Rp 1 and Rp 1¼
  • Max. operating pressure 10 bar

Materials

  • Pump housing: Grey cast iron (EN-GJL-200)
  • Impeller: Plastic (PP - 40% GF)
  • Pump shaft: Stainless steel
  • Bearing: carbon, metal impregnated

Duty chart

Wilo-Varios PICO-STG

Downloads

REACH regulation

Edition 2019-10
Page format 209.9 x 296.7 mm
Number of pages 4

PDF (853 kB)

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General overview 2019 International version

Article Number 2200591
Edition 2018
Version number 1
Page format 209.9 x 297.0 mm
Number of pages 74

PDF (42 MB)

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Wilo-Varios PICO-STG

Article Number 4232828
Edition 2019-05
Version number 01
Page format 105.1 x 148.2 mm
Number of pages 76

PDF (8 MB)

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Wilo-Varios PICO-STG

Article Number 4235775
Edition 2019-05
Version number 01
Page format 105.1 x 148.2 mm
Number of pages 32

PDF (5 MB)

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