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:
12
Para.../iPWM
Para.../LIN
11
8
1
2
3
4
58
9
10
7
Para.../SC
6
Fig. 2:
Fig. 3:
a
b
Fig. 4:
1
2
30 Wilo SE 02/2018
en
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
en
• 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
en
• 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
en
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
en
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
en
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.
II
III
I
H/m
Q/m³/h
III
I
II
H/m
Q/m³/h
36 Wilo SE 02/2018
en
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)
I
III
II
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
n
¹/min
min
0 5 85 88 93 100 PWM
%
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