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Stratos PICO-Z 20/0,5-4 | Wilo
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  4. Stratos PICO-Z 20/0,5-4

Stratos PICO-Z 20/0,5-4

Article number: 4255430
Technical data
Hydraulic data
Maximum operating pressure PN 10 bar
Max. fluid temperature Tmax 95 °C
Min. fluid temperature Tmin 2 °C
Min. ambient temperature Tmin -10 °C
Max. ambient temperature Tmax 40 °C
Temperature range at max. ambient temperature +40 °C T +2...+70
Max. permitted total water hardness 3.57 mmol/l (20°dH)
Motor data
Mains connection 1~230 V, 50/60 Hz
Rated power P2 0.02 kW
Rated current IN 0.26 A
Min. speed nmin 700 1/min
Max. speed nmax 3400 1/min
Power consumption P1 min 3 W
Power consumption P1 max 20 W
Emitted interference EN 61000-6-3
Interference resistance EN 61000-6-2
Electromagnetic compatibility EN 61800-3
Insulation class F
Protection class motor IPX4D
Speed control Frequency converter
Motor protection integrated
Materials
Pump housing 1.4409
Impeller PPO-GF30
Shaft Oxide ceramic
Bearing Carbon-graphite
Installation dimensions
Pipe connection on the suction side DNs G 1¼
Pipe connection on the discharge side DNd G 1¼
Port-to-port length L0 150 mm
Function
Control mode
  • Δp-c for constant differential pressure
  • T-const. for constant temperature control
  • Constant speed (n-const.)
Special features of the series
  • Key locking function
  • Reset function for electricity meter
  • Reset function to factory setting
  • Qmin for T const. control mode
  • Automatic detection of thermal disinfection
Display
  • Setpoint
  • Actual delivery head
  • Actual volume flow
  • Actual power consumption
  • Energy consumption
  • Actual speed
  • Manually activated restart or pump venting function
  • Warning messages in plain text (display status: yellow)
  • Error messages in plain text (display: red)
  • Control mode
  • Active influences (e.g. STOP)
Pump venting function Manual
Equipment
Approvals and labels
  • CE
  • VDE
  • EAC
  • UKCA
  • TR
  • RCM
Display Graphic colour display (2 inches)
Display information Comfort Version: LCD display (large) for showing the head, flow volume, actual und cumulated current.
Pump control Electronic-controlled pump
Quick electrical connection Wilo Connector
Thermal insulation shell Yes
Blocking-current proof motor yes
Key lock yes
Operating elements Green button and back button
Connectivity
Access via the Wilo-Assistant app Via accessory Wilo-Smart Connect Module BT
Analogue signal as standard 0-10 V (via BMS Connect module accessories)
Digital input Ext. OFF/Ext. MIN/ Ext. MAX (via BMS Connect module accessories)
Digital output SSM/SBM (via BMS Connect module accessories)
wire data exchange and remote operation Via accessories Wilo-Smart Connect Module BT

Stratos PICO-Z 20/0,5-4

Blocking current-proof motor

Single-phase motor (EM) 2‐pole ‐ 1~230 V, 50 Hz

Product data
Brand Wilo
Product description Stratos PICO-Z 20/0,5-4
Article number 4255430
EAN number 4062679266053
Colour Green
Minimum order quantity 1
Date of sales availability 2023-01-01
Previous model article number 4255430
Previous model designation Stratos PICO-Z 20/0,5-4
Packaging
Packaging type Cardboard box
Packaging property Sales packaging
Pieces per pallet 146
Number per layer 20
Dimension, weight
Length with packaging 194 mm
Length L 156 mm
Height with packaging 121 mm
Height H 115 mm
Width with packaging 213 mm
Width W 164 mm
Gross weight, approx. m 2 kg
Net weight, approx. m 1.7 kg
Tender text

This circulator is suitable only for drinking water.

Maintenance-free domestic hot water circulator (glandless pump version) with screwed connection, blocking-current proof synchronous motor according to ECM technology and built-in electronic power control for continuous differential pressure control. With the highest efficiency levels and high starting torque, including automatic deblocking function. Suitable for all domestic hot water systems (+2 to +95 °C).

Control modes:

  • T-const. for temperature-controlled mode
  • Δp-c for constant differential pressure
  • Constant speed (n-const.)

Functions:

  • Detection of thermal disinfection of the domestic hot water storage tank
  • Fault/warning message display including description and error code in plain text
  • Venting routine for automatic venting of the rotor chamber
  • Manual restart function for additional deblocking of the pump as required
  • Key lock
  • Function for resetting the electricity meter or for resetting the settings to the factory settings
  • Automatic deblocking function and integrated motor protection

Display:

  • Control mode
  • Setpoint
  • Volume flow
  • Delivery head
  • Speed
  • Temperature
  • Power consumption
  • Electric consumption
  • Active influences (e.g. thermal disinfection, deaeration)

Version:

  • Graphic colour display with operation via one button manual operation level
  • Slot for Wilo communication modules as an interface for e.g. Bluetooth
  • Use the Wilo-Assistant app to read and set operating data and –among other things– set up a commissioning protocol through the Bluetooth interface (as an accessory)
  • Minimal consumption only 3 W
  • Equipped as standard with a thermal insulation shell

Optional accessories:

  • Wilo-Smart Connect module BT for Bluetooth connection to mobile devices via Wilo-Assistant app
  • The Wilo-Connect module BMS expands the interface for use in building management systems (BMS)
  • Wilo-Connect module Modbus RTU expands the interface for use in building management systems
Operating Data
Max. fluid temperature Tmax 95 °C
Min. fluid temperature Tmin 2 °C
Min. ambient temperature Tmin -10 °C
Max. ambient temperature Tmax 40 °C
Temperature range at max. ambient temperature +40 °C T +2...+70
Maximum operating pressure PN 10 bar
Max. permitted total water hardness 3.57 mmol/l (20°dH)
Motor data
Emitted interference EN 61000-6-3
Interference resistance EN 61000-6-2
Mains connection 1~230 V, 50/60 Hz
Power consumption P1 max 20 W
Max. speed nmax 3400 1/min
Rated current IN 0.26 A
Protection class motor IPX4D
Threaded cable connection 1 x PG11
Materials
Pump housing 1.4409
Impeller PPO-GF30
Shaft Oxide ceramic
Bearing Carbon-graphite
Installation dimensions
Pipe connection on the suction side DNs G 1¼
Pipe connection on the discharge side DNd G 1¼
Port-to-port length L0 150 mm
Ordering information
Brand Wilo
Product description Stratos PICO-Z 20/0,5-4
Net weight, approx. m 1.7 kg
Article number 4255430
Documents

Installation and operating instructions

Wilo-Stratos PICO-Z

Article Number 4258257
Edition 2023-02
Number of pages 36
Language en
PDF (5 MB)

Wilo-Stratos PICO-Z - Quick Guide

Article Number 4252893
Edition 2022-11
Number of pages 80
Language bg, cs, da, de, el, en, es, et, fi, fr, hr, hu, it, lt, lv, nl, no, pl, pt, ro, ru, sk, sl, sr, sv, tr, uk
PDF (20 MB)

Group Statement

Group Statement REACH

Edition 2021-05
Number of pages 5
Language language neutral
PDF (327 KB)
BIM/CAD
Accessory

Pipe installation (1)

Screwed connections/adapters
Screwed connections/adapters
Screwed connection Rp ¾ x G 1¼, 1 Set
    
4233251

Screwed connections for drinking water pumps and solar heating pumps with threaded connection

Brass screws, inserts with female threads for connection to copper pipes (DIN EN 1057) with Whitworth pipe threads according to DIN EN 10226-1.

Scope of delivery

  • 1 set of brass screwed connections consisting of:
  • 2 union nuts
  • 2 inserts (screw connection)
  • 2 flat gaskets

Pump control (1)

Pump control/interface module (2)

Plug (1)

Services

With Wilo as your partner, you can not only be sure of choosing high-quality product solutions, but also of benefiting from a comprehensive, worry-free package of well thought-out services. We collaborate to develop a service concept tailored to your individual needs; with our expertise and personal consultancy, we make sure that the operation of your systems is as energy-efficient, reliable and economical as possible. All the while our competent Wilo service technicians are ready to assist you with fast, reliable and on-time support.

Read more

Recommended services

Wilo-Live Assistant
Wilo-Live Assistant Service
    
2216415

The Wilo-Live Assistant is a technical advisor at your side during pump service. By using the Wilo-Live Assistant, our expert advisers can support you in the boiler or equipment room via video transmission – live and in real time. You use your smartphone to show the installation set-up, while the Wilo expert follows everything on their screen. They can see the components as well as other details and can thus determine where the fault or breakdown originates. We prevent downtime and ensure operational reliability of your pumps and systems!

The Wilo-Live Assistant includes:

  • Interactive live support via video chat
  • Direct contact with an expert
  • Just-in-time solution to ensure maximum operational reliability of your pumps and systems
System Optimisation
System Optimisation Glandless pumps
    
2219250

The Wilo Service offers proactive system optimisation by optimising settings and doing minor adjustments to ensure operational reliability. System Optimisation includes among others:

  • Overhaul of pumps/systems to restore full performance
  • Addition of new technologies or functions in older systems to save on capital expenditures (retrofitting)
Energy Solutions
Energy Solutions Glandless pumps
    
2219285

Wilo Service offers a proactive support to point out possible energy savings. Our service creates an overview of all installed assets to show how the energy consumption of pumps or systems can be reduced. We offer targeted consultancy and analysis, including the involvement of subsidies as well as comprehensive support around the changeover to high-efficiency technologies. Wilo-Energy solution includes:

  • Detailed assessment of the life cycle costs (LCC analysis)
  • Energy audit including information about energy saving potential
  • Proactive recommendation of replacement options
  • Improving the environmental performance of your system
  • Support in the changeover to Wilo high-efficiency pumps

More suitable services

Extended Warranty
Extended Warranty Glandless pumps
    
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In combination of a new pump or system Wilo offers an extended warranty of up to five years in combination with commissioning and maintenance by the Wilo Service.

Extended warranty includes:

  • Full protection and predictable cost security
  • Regular maintenance work by the Wilo Service
Supervision
Supervision Glandless pumps
    
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Wilo supports during the concept phase to ensure quality work and cost efficiency. Our competent and qualified Wilo Service will support you with recommendations and technical advice throughout the entire project.

Supervision includes:

  • Regular on-site visits ensure the quality of information and advice
  • Technical consultancy, also available on site
  • Status report with recommendations after the visit
  • Comprehensive support from a Wilo expert
Installation
Installation Glandless pumps
    
2219355

The Wilo service offers installation of our pumps or pumping systems. We offer an end-to-end process from gathering information on site to installing our product in the overall plant. An optimal installation set-up and the interaction of various individual factors lay the foundation for long-term operational safety.

Installation includes:

  • Professional inspection
  • Provision of components/materials from Wilo and third-party suppliers
  • Installation of pipelines and electronics
  • Test runs
Commissioning
Commissioning Glandless pumps
    
2219390

For perfect functioning of the pump(s) / system(s), it is recommended to have the commissioning carried out by the works' own WILO SE Customer Service Department. Optimum setting and efficient operation of the system are ensured as a result. Commissioning is comprised of the following points:

  • Commissioning of system(s) according to checklist
  • Parameterisation and setting of switchgear
  • Testing and adaptation of initial compressing of pressure tanks (filling up to 80 litres incl.)
  • Functional check of fitted system(s)
  • Practice-oriented operation instruction
  • Wilo commissioning protocol

The price for commissioning only applies to system(s) which have been installed in accordance with the installation and operating instructions and state-of-the-art technology. No costs for any materials which may be required are included.

Maintenance
Maintenance BASIC Glandless pumps
    
2219530

In order to ensure and guarantee operational reliability of the pumps/systems, it is recommended to have regular and DIN-compliant inspections and maintenance carried out by the works' own WILO SE Customer Service Department. The tasks are carried out in accordance with DIN 31051 / DIN EN 13306. The tasks comprise the following points:

  • Visual inspection of the pumps/systems
  • Mechanical check
  • Electrical check
  • Testing pressure vessels that may be on hand
  • Review and, if necessary, adjustment of the system parameters
  • Creating a maintenance protocol

Scheduling and organisation is performed by WILO. Other individual maintenance offers are possible on request.

Maintenance COMFORT Glandless pumps
    
2219416

In order to ensure and guarantee operational reliability of the pumps/systems, it is recommended to have regular and DIN-compliant inspections and maintenance carried out by the works' own WILO SE Customer Service Department. The tasks are carried out in accordance with DIN 31051 / DIN EN 13306. The tasks comprise the following points:

  • Visual inspection of the pumps/systems
  • Mechanical check
  • Electrical check
  • Testing and possible filling of pressure vessels that may be on hand
  • Review and, if necessary, adjustment of the system parameters
  • Creating a maintenance protocol
  • Consumable materials are included in the contract price
  • Elimination of payroll and travel expenses for deployments between maintenance intervals (during normal service hours)

Scheduling and organisation is performed by WILO. Other individual maintenance offers are possible on request.

Maintenance PREMIUM Glandless pumps
    
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In order to ensure and guarantee operational reliability of the pumps/systems, it is recommended to have regular and DIN-compliant inspections and maintenance carried out by the works' own WILO SE Customer Service Department. The tasks are carried out in accordance with DIN 31051 / DIN EN 13306. The tasks comprise the following points:

  • Visual inspection of the pumps/systems
  • Mechanical check
  • Electrical check
  • Testing and possible filling of pressure vessels that may be on hand
  • Checking the system parameters
  • Creating a maintenance protocol
  • Consumable materials are included in the contract price
  • Elimination of payroll and travel expenses for deployments between maintenance intervals (during and outside normal service hours)
  • Software updates
  • Includes wearing parts

Scheduling and organisation is performed by WILO. Other individual maintenance offers are possible on request.

Repair
Repair Glandless pumps
    
2219609

Wilo Service draws on their competence and experience while consulting on site to decide whether the pump can actually be repaired on site or has to be sent in for a factory repair. Wilo also provides spare parts or a replacement pump to restore the operational reliability of the system.

Repair includes:

  • Verification and elimination of error causes by experienced Wilo experts
  • Non-binding estimate for repairs
  • Electric-hydraulic test run to ensure correct data regarding functionality, quality and performance of the pump or system
  • Coating of various pump or system components for an optimised efficiency factor
  • Use of genuine spare parts only
  • Documentation of the repair in the service report