Wilo Yonos Para Circulator; Troubleshooting; Declaration Of Conformity - emmeti TM3 Mixing Unit Manuel D'installation Et D'utilisation

5. WIlO YONOS PaRa CIRCUlaTOR

5.1 Commissioning
Burn hazard!
The circulator can become very hot, depending on the oper-
ating temperature of the circulating fluid; this results in burn
hazards upon contact with the circulator.
Filling and bleeding the system.
Fill and bleed the system completely. The rotor compartment is usually al-
ready emptied automatically after it has been operating for a short amount
of time. However, if it is necessary to ventilate the rotor compartment di-
rectly, it is possible to start the ventilation procedure.
Select the ventilation symbol by turning the red selector on the symbol
indicated here below.
air
The ventilation process lasts for 10 minutes and can generate noise. Dur-
ing this period of time the circulator operates alternatively between the
minimum and maximum speed. At the end of the process, set the selected
mode by turning the selector.
The value of the differential pressure generated by the circulator increases,
in the field indicating the allowed flow rate, from 50% to 100% in relation
to the value set with the red selector.
Setting the control mode.
Select the symbol of the control mode by turning the red selector.
VARIABLE DIFFERENTIAL PRESSURE "Δp-v"
(default setting).
This mode is particularly suitable for
heating systems with radiators, as
it reduces the noise due to the flow
of water on the thermostatic valves.
CONSTANT PRESSURE DIFFERENCE "Δp-c"
The differential pressure generated
p Variabile
H [m]
by the circulator is maintained con-
6
stant (at the value set with the red
5
selector) within the allowed flow rate
range, up to the maximum flow rate. 4
3
2
This is the recommended option for
1
floor heating systems or old heating
0 0,5 1,0 1,5 2,0 2,5 3,0
systems with large pipes.
Q [m /h]
3
p Variabile
H [m]
6
5
4
3
2
1
0 1,0
0,5 1,5 2,0 2,5 3,0
Q [m /h]
3
p Costante
H [m]
6
5
4
3
2
1
0
0,5 1,0 1,5 2,0 2,5 3,0
Q [m /h]
3
Self-protection
80
70
60
50
40
30
70
Fluid temperature (°C)
Example: when the temperature of the fluid reaches 90°C and the ambient
temperature reaches 59°C, the prevalence can be reduced by 0.5 m in rela-
tion to the system's pressure drops.

5.2 Troubleshooting

Failure Cause
The circulator does Faulty fuse
not work
when it is powered on
The circulator is not
receiving power from
the mains
The circulator is noisy Cavitation due to
insufficient incoming
pressure
The building does not Heating capacity from
warm up the radiant panels is
p Costante
too low
H [m]
6
5
4
3
The circulator covered in this instruction manual complies with the
2
following directives and standards:
1
– Electromagnetic Compatibility Directive 2004/108/EC;
- Low Voltage Directive 2006/95/EC;
0 0,5 1,0 1,5 2,0 2,5 3,0
– ErP directive 2009/125/EC Q [m /h]
3
– Applied harmonised standards, namely: EN 60335-2-51,
EN 61000-3-2, EN 61000-3-3, EN 55014-1&2.
5.3 Declaration of conformity of the circulator
The conformity certificate is on the last page of this manual.
GB GB
Normal operating conditions
80 90 100
Solution
Check the fuses
Clear the power
interruption
Increase the incoming
pressure within the
allowed range
Check the head setting
(if necessary set a
lower head)
Increase the head
value by using the red
selector
Set the control mode
Δp-c
110
15