Wilo Yonos PICO Manuale utente

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4 209 895-Ed.01 / 2017-03

Wilo-Yonos PICO

Pioneering for You

en Installation and operating instructions

Fig. 1:

1 9

671112

810

Fig. 2: Fig. 3a:

Fig. 3b:

PE NL

Fig. 3c:

Fig. 3d:

Fig. 3e:

Fig. 3f:

Fig. 4:

4Wilo SE 03/2017

1 General information

About these

instructions

These installation and operating instructions are an

integral part of the product. Read these instructions

before commencing work and keep them in an accessi-

ble place at all times.

Strict adherence to these instructions is a precondition

for the intended use and correct operation of the pro-

duct. All information and markings on the product must

be observed.

The language of the original operating instructions is

German. All other languages of these instructions are

translations of the original operating instructions.

2Safety

This chapter contains basic information which must be

adhered to during installation, operation and mainte-

nance. Additionally, the instructions and safety instruc-

tions in the other chapters must be observed.

Failure to follow the installation and operating instruc-

tions will result in risk of injury to persons and damage to

the environment and the product. This will result in the

loss of any claims for damages.

Failure to follow the instructions will, for example, result

in the following risks:

• Danger to persons due to electrical, mechanical and

bacteriological factors as well as electromagnetic fields

• Environmental risks due to leakage of hazardous sub-

stances

• Property damage

• Failure of important functions of the product

Identification of

safety instructions

These installation and operating instructions set out

safety instructions for preventing personal injury and

damage to property that are displayed in different ways:

• Safety instructions relating to personal injury start

with a signal word and are preceded by a

corresponding symbol.

Installation and operating instructions Wilo-Yonos PICO 5

• Safety instructions relating to property damage start

with a signal word and are displayed

without

a symbol.

Signal words DANGER!

Failure to observe the safety instructions will result in

serious injuries or death!

WARNING!

Failure to follow the instructions can lead to (serious)

injuries!

CAUTION!

Failure to follow the instructions can lead to property

damage and a possible total loss.

NOTE

Useful information on handling the product.

Symbols These instructions use the following symbols:

Personnel

qualifications

Personnel must:

• Be instructed in the locally applicable accident pre-

vention regulations.

• Have read and understood the installation and

operating instructions.

Personnel must have the following qualifications:

• Electrical work must be carried out by an authorised

electrician (in accordance with EN 50110-1).

Danger due to electrical voltage

General danger symbol

Warning of hot surfaces/media

Warning of magnetic fields

Notes

6Wilo SE 03/2017

• Installation/dismantling must be carried out by a

qualified technician who is trained in the use of the

necessary tools and mounting materials.

• The product must be operated by persons who are

instructed in the functioning of the complete system.

Definition of “qualified electrician”

A qualified electrician is a person with appropriate techni

cal education, knowledge and experience who can iden

tify and prevent electrical hazards.

Electrical work • Electrical work must be performed by a qualified elec-

trician.

• Nationally applicable guidelines, standards and regu-

lations as well as specifications by local energy supply

companies 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 protected by means of a

residual-current device (RCD).

• The product must be earthed.

• Have defective cables replaced immediately by a

qualified electrician.

• Never open the control module and never remove

control elements.

Obligations of the

operator

• Have all work carried out by qualified personnel only.

• Ensure on-site contact protection from hot com-

ponents and electrical hazards.

• Have defective gaskets and connecting cables replaced.

This device can be used by children from 8 years old as

well as persons with limited physical, sensory or mental

capabilities or lack of experience and knowledge, if they

are supervised or instructed in the safe use of the device

and they understand the dangers that may arise. Chil-

dren are not allowed to play with the device. Cleaning

and user maintenance may not be carried out by children

without supervision.

Installation and operating instructions Wilo-Yonos PICO 7

3 Product description and function

Overview Wilo-Yonos PICO (Fig. 1)

1 Pump housing with screwed connections

2 Glandless pump motor

3 Condensate drain openings

(4x around circumference)

4 Rating plate

5Housing screws

6 Control module

7 LED display

8Operating button

9 Wilo-Connector, electrical mains connection

10 Function key

11 Function LED

12 Fault signal LED

Function High-efficiency circulator for hot-water heating sys-

tems with integrated differential pressure control. Con-

trol mode and delivery head (differential pressure) are

adjustable. The differential pressure is controlled via the

pump speed.

Type key

Example: Wilo-Yonos PICO 25/1-6 130

Yonos PICO High-efficiency circulator

25 Screwed connection DN 25 (Rp 1)

1-6 1 = Minimum delivery head in m (adjustable down

to 0.5 m)

6 = Maximum delivery head in m at Q = 0 m³/h

130 Port-to-port length: 130 mm or 180 mm

8Wilo SE 03/2017

Technical data

LED display

• Display of the current power consumption in W.

• Display of the setpoint H of the delivery head

(differential pressure) in m.

• Display of selected constant speed

(c1 = I, c2 = II, c3 = III).

• Display of warning and fault signals.

3.1 Controls

Operating button Turn

• Select application/control mode.

• Set setpoint H of the delivery head (differential pres-

sure).

• Select constant rotation speed.

Connection voltage 1 ~ 230 V ± 10 %, 50/60 Hz

Protection class IP See rating plate (4)

Energy efficiency index EEI See rating plate (4)

Fluid temperatures at

max. ambient temperature +40 °C -10 °C to +95 °C

Fluid temperatures at

max. ambient temperature +25 °C -10 °C to +110 °C

Permitted ambient temperature -10 °C to +40 °C

Max. operating pressure 10 bar (1000 kPa)

Min. inlet pressure at +95 °C/+110 °C 0.3 bar/1.0 bar (30 kPa/100 kPa)

Installation and operating instructions Wilo-Yonos PICO 9

Function key Press

• Start pump venting function.

• activate pump manual restart.

3.2 Applications/control mode and functions

Radiator heating

system

Recommended for two-pipe heating systems with radi-

ators to reduce the flow noises at the thermostatic

valves.

Variable differential pressure (Δp-v):

The pump reduces the delivery head at a decreasing vol-

ume flow in the pipe network to half.

Electrical energy saving by adjusting the delivery head to

the volume flow requirement and lower flow rates.

Underfloor heating Recommended for underfloor heating.

Or for large-sized pipes as well as all applications with-

out changeable pipe network curve (e.g. storage charge

pumps) as well as single-pipe heating systems with radi-

ators.

Constant differential pressure (Δp-c):

The controller keeps the set delivery head constant

irrespective of the conveyed volume flow.

H max

H min

NOTE

Factory setting: Δp-v, ½ Hmax

H max

H min

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