Wilo Wilo-Para Series Manuale utente

4 530 831-Ed.01 / 2018-02

Wilo-Para

Pioneering for You

de Einbau- und Betriebsanleitung

en Installation and operating instructions

fr Notice de montage et de mise en service

Fig. 1:

Para.../iPWM

Para.../LIN

Para.../SC

Fig. 2:

Fig. 3:

Fig. 4:

30 Wilo SE 02/2018

1General

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 requirement

for intended use and correctly operating the product. All

specifications 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 section contains basic information which must be

adhered to during installation, operation and mainte-

nance. Additionally, the instructions and safety instruc-

tions in the other sections must be followed.

Failure to follow the installation and operating instruc-

tions will result in the risk of injury to persons and dam-

age 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:

• Injury to persons from electrical, mechanical and bac-

teriological factors as well as electromagnetic fields

• Environmental damage from leakage of hazardous

substances

• 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, which are displayed in different

ways:

• Safety instructions relating to personal injury start

with a signal word and are preceded by a corre-

sponding symbol.

Installation and operating instructions Wilo-Para 31

• Safety instructions relating to property damage start

with a signal word and are displayed

without

a symbol.

Signal words DANGER!

Failure to observe safety instructions will result in seri-

ous injury or death!

WARNING!

Failure to follow instructions can lead to (serious) injury!

CAUTION!

Failure to follow instructions can lead to property dam-

age and possible total loss.

NOTICE

Useful information on handling the product

Symbols These instructions use the following symbols:

Personnel

qualifications

Personnel must:

• Be instructed about locally applicable regulations

governing accident prevention.

• Have read and understood the installation and oper-

ating 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/fluids

Warning of magnetic fields

Notices

32 Wilo SE 02/2018

• 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 techni

cal training, knowledge and experience who can identify

and prevent electrical hazards.

Electrical work • Electrical work must be performed by a qualified

electrician.

• Nationally applicable guidelines, standards and regu-

lations as well as specifications issued by the 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 safeguard it from 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

operating elements.

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 by people with reduced physical, sensory or mental

capacities 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 can occur. Children are

not allowed to play with the device. Cleaning and user

maintenance must not be carried out by children without

supervision.

Installation and operating instructions Wilo-Para 33

3 Product description and function

Overview Wilo-Para (Fig. 1)

1 Pump housing with screwed connections

2 Glandless motor

3 Condensate drain openings

(4x around circumference)

4Housing screws

5 Control module

6 Rating plate

7 Operating button for pump adjustment

8 Run signal/fault signal LED

9 Display of selected control mode

10 Display of selected characteristic curve (I, II, III)

11 PWM or LIN signal cable connection

12 Mains connection: 3-pin plug connection

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-Para 15-130/7-50/SC-12/I

Para High-efficiency circulator

15 15 = screwed connection DN 15 (Rp ½)

DN 25 (Rp 1), DN 30 (Rp 1¼)

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

7 7 = maximum delivery head in m at Q = 0 m³/h

50 50 = max. power consumption in watts

SC SC = Self-Control

iPWM1 = external control via iPWM1 signal

iPWM2 = external control via iPWM2 signal

12 Position of the control module at 12 o’clock

I Individual packaging

34 Wilo SE 02/2018

Technical data

Indicator

lights (LEDs)

•Signal display

• LED is lit up in green in normal operation

• LED lights up/flashes in case of a fault

(see chapter 10.1)

• Display of selected control mode

Δp-v, Δp-c and constant speed

• Display of selected pump curve (I, II, III) within the

control mode

• LED indicator combinations during the pump venting

function, manual restart and key lock

Connection voltage 1 ~ 230 V +10 %/-15 %, 50/60 Hz

Protection class IPX4D

Energy efficiency index EEI See rating plate (6)

Fluid temperatures at

max. ambient temperature +40 °C -20 °C to +95 °C (Heating/GT)

-10 °C to +110 °C (ST)

Ambient temperature +25 °C 0 °C to +70 °C

Max. operating pressure 10 bar (1000 kPa)

Min. inlet pressure at +95 °C/+110 °C 0.5 bar / 1.0 bar (50 kPa / 100 kPa)

Installation and operating instructions Wilo-Para 35

Operating button

Press

•Select control mode

• Select pump curve (I, II, III) within the control mode

Press and hold

• Activate the pump venting function

(press for 3 seconds)

• Activate manual restart (press for 5 seconds)

• Lock/unlock button (press for 8 seconds)

3.1 Control modes and functions

Variable

differential

pressure

Δp-v (I, II, III)

Recommended for two-pipe heating systems with radi-

ators to reduce the flow noise at thermostatic valves.

The pump reduces the delivery head to half in the case of

decreasing volume flow in the pipe network.

Electrical energy saving by adjusting the delivery head to

the volume flow requirement and lower flow rates.

There are three pre-defined pump curves (I, II, III) to

choose from.

Constant

differential

pressure

Δp-c (I, II, III)

Recommended for underfloor heating for large-sized

pipes or all applications without a variable pipe network

curve (e.g. storage charge pumps), as well as single-pipe

heating systems with radiators.

The control keeps the set delivery head constant irre-

spective of the pumped volume flow.

There are three pre-defined pump curves (I, II, III) to

choose from.

III

H/m

Q/m³/h

III

H/m

Q/m³/h

36 Wilo SE 02/2018

Constant

speed (I, II, III) Recommended for systems with fixed system resistance

requiring a constant volume flow.

The pump runs in three prescribed fixed speed

stages (I, II, III).

External control

via iPWM signal The required setpoint/actual value comparison for con-

trol is performed by an external controller.

A PWM signal (pulse-width modulation) is fed as a cor-

recting variable to the pump.

The PWM signal generator gives the pump a periodic

sequence of impulses (the duty cycle) in accordance

with DIN IEC 60469-1.

iPWM 1 mode (heating application):

In iPWM 1 mode, the pump speed is controlled according

to the PWM input signal.

Behaviour in the event of a cable break:

If the signal cable is disconnected from the pump,

e.g. due to a cable break, the pump accelerates to maxi-

mum speed.

PWM signal input [%]

< 5: Pump runs at maximum speed

5-85: The speed of the pump decreases linearly

from nmax to nmin

85-93: Pump runs at minimum speed (operation)

85-88: Pump runs at minimum speed (starting)

93-100: Pump stops (standby)

III

H/m

Q/m³/h

NOTICE

Factory setting:

Constant speed, pump curve III

55 (45)%

45 (55)%

5 (95)%

65 (35)%

35 (65)%

75 (25)%

85 (15)%

15 (85)%

25 (75)%

H/m

Q/m³/h

% PWM 1 (% PWM 2)

3:0

max

¹/min

min

0 5 85 88 93 100 PWM

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