Wilo Yonos PICO-Z User manual

Pioneering for You
·
Wilo-Yonos PICO-Z
4258256 • Ed.01/2023-02
en Installation and operating instructions

Yonos PICO-Z
https://qr.wilo.com/336

en
Installation and operating instructions • Wilo-Yonos PICO-Z • Ed.01/2023-02 3
Table of contents
1 General information...................................................................4
1.1 About these instructions ..................................................... 4
1.2 Copyright ............................................................................... 4
1.3 Subject to change................................................................. 4
2 Safety...........................................................................................4
2.1 Identification of safety instructions................................... 4
2.2 Personnel qualifications....................................................... 5
2.3 Electrical work .......................................................................5
2.4 Operator responsibilities...................................................... 6
3 Description of the pump............................................................6
3.1 Overview ................................................................................ 6
3.2 Operating and display elements .........................................7
3.3 Type key................................................................................. 7
3.4 Technical data .......................................................................8
3.5 Control mode and functions................................................ 8
4 Application/use...........................................................................8
4.1 Intended use.......................................................................... 8
4.2 Misuse..................................................................................... 9
5 Transportation and storage.......................................................9
5.1 Scope of delivery................................................................... 9
5.2 Transport inspection ............................................................9
5.3 Transport and storage conditions ......................................9
6 Installation and electrical connection......................................9
6.1 Installation ............................................................................. 9
6.2 Electrical connection..........................................................11
7 Commissioning .........................................................................13
7.1 Venting.................................................................................13
7.2 Setting the control mode and the delivery head............13
8 Shutdown ..................................................................................14
8.1 Shutting down the pump...................................................14
9 Maintenance..............................................................................14
10 Faults, causes and remedies....................................................14
10.1 Warning messages..............................................................15
10.2 Fault messages....................................................................15
11 Disposal .....................................................................................16
11.1 Information on the collection of used electrical and elec-
tronic products....................................................................16

en
4 Installation and operating instructions • Wilo-Yonos PICO-Z • Ed.01/2023-02
1 General information
1.1 About these instructions These instructions form part of the product. Compliance with the instructions is essential
for correct handling and use:
•Read the instructions carefully before all activities.
•Keep the instructions in an accessible place at all times.
•Observe all product specifications.
•Observe the markings on the product.
The language of the original operating instructions is German. All other languages of these
instructions are translations of the original operating instructions.
1.2 Copyright WILO SE © 2023
The reproduction, distribution and utilization of this document as well as the communica-
tion of its contents to others without express authorization is prohibited. Offenders will be
held liable for the payment of damages. All rights reserved.
1.3 Subject to change Wilo shall reserve the right to change the listed data without notice and shall not be liable
for technical inaccuracies and/or omissions. The illustrations used may differ from the ori-
ginal and are intended as an example representation of the device.
2 Safety This chapter contains basic instructions for the individual life
cycles of the product. Failure to observe this information carries
the following risks:
•Danger to persons from electrical, mechanical and bacteriolo-
gical effects as well as electromagnetic fields
•Environmental damage from discharge of hazardous sub-
stances
•Damage to property
•Failure of important product functions
•Failure of required maintenance and repair procedures
Failure to observe the instructions will result in the loss of any
claims for damages.
The directions and safety instructions in the other sections
must also be observed!
2.1 Identification of safety
instructions
These installation and operating instructions set out safety in-
structions for preventing personal injury and damage to property,
which are displayed in different ways:
•Safety instructions relating to personal injury start with a signal
word and are preceded by a corresponding symbol.
•Safety instructions relating to property damage start with a
signal word and are displayed without a symbol.
Signal words
•DANGER!
Failure to follow the instructions will result in serious injury or
death!
•WARNING!
Failure to follow instructions can lead to (serious) injury!
•CAUTION!
Failure to follow instructions can lead to property damage and
possible total loss.

en
Installation and operating instructions • Wilo-Yonos PICO-Z • Ed.01/2023-02 5
•NOTICE!
Useful information on handling the product
Symbols
These instructions use the following symbols:
General danger symbol
Danger of electric voltage
Warning of hot surfaces
Warning of magnetic fields
Notices
2.2 Personnel qualifications Personnel must:
•Be instructed about locally applicable regulations governing ac-
cident prevention.
•Have read and understood the installation and operating in-
structions.
Personnel must have the following qualifications:
•Electrical work: Electrical work must be performed by a quali-
fied electrician.
•Installation/dismantling work: The installation/dismantling
must be carried out by a qualified technician who is trained in
the use of the necessary tools and fixation materials.
•The product must be operated by persons who are instructed
on how the complete system functions.
Definition of “qualified electrician”
A qualified electrician is a person with appropriate technical edu-
cation, knowledge and experience who can identify and prevent
electrical hazards.
2.3 Electrical work •Electrical work must be performed by a qualified electrician.
•Nationally applicable guidelines, standards and regulations as
well as specifications issued by the local energy supply com-
panies for connection to the local power supply system must be
observed.
•Before commencing work, disconnect the product from the
mains and secure it against being switched on again.
•The connection must be secured by means of a residual-cur-
rent device (RCD).
•The product must be earthed.
•Have defective cables replaced immediately by a qualified elec-
trician.
•Never open the control module and never remove operating
elements.

en
6 Installation and operating instructions • Wilo-Yonos PICO-Z • Ed.01/2023-02
2.4 Operator responsibilities •Have all work carried out by qualified personnel only.
•Ensure on-site guard against hot components and electrical
hazards.
•Have defective gaskets and connection pipes replaced.
This device can be used by children from 8years of age as well as
people with reduced physical, sensory or mental capacities or lack
of experience and knowledge if they are supervised or instructed
on the safe use of the device and they understand the dangers
that can occur. Children are not allowed to play with the device.
Cleaning and user maintenance must not be carried out by chil-
dren without supervision.
3 Description of the pump High-efficiency circulator for drinking water systems with integrated differential pressure
control. Control mode and delivery head (differential pressure) are adjustable. The differen-
tial pressure is controlled via the pump speed. For all control functions, the pump continu-
ously adapts to the system’s changing power requirements.
3.1 Overview
4
9
6
3
2
1
5
7 1112
810
Fig.1: Overview
Item Name Explanation
1. Pump housing With screwed connections
2. Glandless motor Drive unit
3. Thermal insulation shell 2half shells
4. Rating plate
5. Housing screws 4 pieces for motor fixation
6. Control module Electronic unit with LED display
7. LED display Display of operating statuses
8. Operating button Settings of all parameters
9. Wilo-Connector Electrical mains connection
10 Function key Start additional functions
11 Function LED Lights up if additional function is activated
12 Fault signal LED Lights up red in case of fault message

en
Installation and operating instructions • Wilo-Yonos PICO-Z • Ed.01/2023-02 7
3.2 Operating and display elements Operating button
Turn:
•Select control mode.
•Set setpoint H of the delivery head (differential pres-
sure).
•Select the constant speed (continuous or fixed).
LED display
m³/h
Display of the setpointH of the delivery head (differ-
ential pressure) inm.
m³/h
Display of constant speed level
(c1 = I, c2 = II, c3 = III).
m³/h
Display of the speed with continuous setting.
The speed (n) corresponds to the default value
x100[rpm].
m³/h m³/h
Display of the current power consumption in W, al-
ternating with the current flow rate inm³/h.
m³/h m³/h
Display of warning and fault signals.
m³/h
Display when pump venting function is activated
(The horizontal segments run as bars from bottom to
top).
m³/h
Display when pump restart is activated
(The outer segments run clockwise).
Function key
Press:
•Start pump venting function (press once).
•Activate pump restart (press twice).
3.3 Type key Example: Yonos PICO-Z 20/0.5-4 150
Yonos PICO High-efficiency pump
-Z Circulator for drinking water systems
20 Nominal diameter of screwed connection:
15 (G 1), 20 (G 1¼), 25 (G 1½)
0,5-4 0.5 = minimum delivery head in m
4 = maximum delivery head in m at Q = 0m³/h
150 Port-to-port length in mm

en
8 Installation and operating instructions • Wilo-Yonos PICO-Z • Ed.01/2023-02
3.4 Technical data Connection voltage 1 ~ 230V ± 10%, 50/60Hz
Protection class IP See rating plate (4)
Fluid temperatures at max. ambient tem-
perature +40°C
+2°C to +95°C
Permitted ambient temperature -10°C to +40°C
Max. operating pressure 10bar (1000kPa)
Minimum inlet pressure at +95°C 0.3bar (30kPa)
3.5 Control mode and functions
H max
H
H min
Hs
Q
Constant differential pressure (Δp-c)
The control keeps the set delivery head constant at the set differential pressure setpoint Hs.
Recommended for systems with balancing valves.
max
H
min
II
III
I
Q
I II III
Constant speed I II III
The pump runs uncontrolled in three prescribed fixed speed stages.
Recommended for systems with fixed system resistance requiring a constant volume flow or
for systems with balancing valves.
max
H
min
Q
Hs
Constant speed
The pump is running uncontrolled via a continuously adjustable value at constant speed. The
speed (n) corresponds to the default value x100[rpm].
Recommended for systems with fixed system resistance requiring a constant volume flow or
for systems with balancing valves.
NOTICE
Factory setting: ½ nmax [rpm]
Pump venting function
The pump venting function is activated via the function key and automatically vents the
pump for a period of 10minutes.
The pump venting function removes accumulated air from the pump rotor chamber.
The domestic hot water circulation system is not vented using the pump venting function.
Manual restart
A manual restart is activated via the function key and unblocks the pump as required.
4 Application/use
4.1 Intended use High-efficiency circulators from this series are only used for pumping drinking water in re-
circulation loop systems in industry and building services.
These pumps are specially adapted to the operating conditions in domestic hot water cir-
culation systems through the selection of materials and their design, taking into account
the national guidelines.

en
Installation and operating instructions • Wilo-Yonos PICO-Z • Ed.01/2023-02 9
Permitted fluids:
•Drinking water according to EC Drinking Water Directive.
•Clean, non-aggressive, low-viscosity fluids in accordance with national drinking water
provisions.
Regulations:
The current editions of the following regulations must be observed during installation:
•Accident prevention regulations
•DINEN806-5
•DVGW worksheet W551 and W553 (in Germany)
•VDE 0700/Part 1 (EN 60335-1)
•More local regulations
4.2 Misuse The operational reliability of the supplied product is only guaranteed for intended use. The
values must never fall below or exceed the limit values specified in the catalogue/data
sheet.
Misuse of the pump can lead to dangerous situations and damage:
•Never use non-specified fluids.
•Highly flammable materials/fluids should always be kept at a safe distance from the
product.
•Never allow unauthorised persons to carry out work.
•Never operate the pump beyond the specified limits of use.
•Never carry out unauthorised conversions.
•Never operate with phase angle control.
•Use authorised Wilo accessories and genuine spare parts only.
Intended use also includes observing these instructions and the specifications and mark-
ings on the pump.
Any use beyond the intended use is considered misuse and will void any warranty claims.
5 Transportation and storage
5.1 Scope of delivery •High-efficiency circulator
•Thermal insulation shell
•2gaskets
•Wilo-Connector
•Installation and operating instructions
5.2 Transport inspection Check delivery immediately for damage and completeness. Where necessary make a com-
plaint immediately.
5.3 Transport and storage conditions Protect against moisture, frost and mechanical loads.
Permissible temperature range: -10°C to +40°C
6 Installation and electrical con-
nection DANGER
Risk of fatal injury!
Incorrect installation and improper electrical connections can be life-
threatening.
• Installation and electrical connection only by qualified personnel.
• Carry out work in accordance with locally applicable regulations.
• Adhere to accident prevention regulations.
6.1 Installation
WARNING
Risk of burns from hot surfaces!
Pump housing and glandless motor may become hot and cause burns if
touched.
• During operation only touch the control module.
• Allow the pump to cool down before commencing any work.

en
10 Installation and operating instructions • Wilo-Yonos PICO-Z • Ed.01/2023-02
WARNING
Risk of scalding from hot fluids!
Hot fluids can cause scalding.
Before the installation or removal of the pump or the dismantling of the
housing screws, observe the following:
• Allow the drinking water system to cool down completely.
• Close shut-off valves or drain the drinking water system.
6.1.1 Preparation
Fig.2: Installation positions
CAUTION
An incorrect installation position may damage the pump!
• Select the installation site according to the permitted installation posi-
tion(Fig.2).
• The motor must always be installed horizontally.
• The electrical connection must never face upwards.
•Choose an installation point that is easily accessible.
•Observe the pump's permitted installation position(Fig.2), rotate the motor head(2+6)
if necessary.
•Install shut-off valves upstream and downstream of the pump to facilitate pump replace-
ment.
CAUTION
Leaking water may damage the control module!
Align the upper shut-off valve on the side so that leaking water cannot
drip onto the control module(6).
•Provide non-return valves.
•Complete all welding and soldering processes.
•Flush the pipeline system.
6.1.2 Rotating the motor head
1
5
2
6
Fig.3: Rotating the motor head
WARNING
Risk of fatal injury from magnetic field!
Highly magnetic components are fitted inside the pump; they can cause
fatal injury to people with medical implants if the pump is dismantled.
• Never remove the rotor.
Rotate the motor head(Fig.3) before installing and connecting the pump.
•If necessary, remove the thermal insulation shell.
•Hold the motor head(2+6) and unscrew the 4housing screws(5).
CAUTION
Damage to the inner gasket causes leakage!
Carefully rotate the motor head without removing it from the pump hous-
ing.
•Carefully rotate the motor head(2+6).
•Observe the permitted installation position(Fig.2) and the direction of flow arrow on the
pump housing(1).
•Tighten the 4housing screws(5).