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Les langues disponibles
COMMISSIONING ACTUATOR:
During commisioning it might be useful to turn the valve manualy by pulling
ARA600 knob, picture A. Reset to operation mode by pushing and adjusting the
knob back, picture B.
1
r to have the
raadplegen.
ermometer op de
COMMISSIONING FIXED TEMPERATURE OPERATION
To set the mixed water temperature, see recommendations in the table below.
All temperature settings must be measured at suitable location with a
a tabla abajo.
thermometer to have the correct mixing temperature of the valve
ermometro para
conditions.
atie en kan
ar bajo ciertas
22°C
25°C
33°C
40°C
WILO
- CIRCULATION PUMP
DESCRIPTION OF THE PUMP
The pump consists of a hydraulic system, a glandless pump motor with a
permanent magnet rotor, and an electronic control module with an integrated
frequency converter. The control module contains both an operating knob for
setting the control mode and the setpoint and a speed control, which can be
carried out via an external PWM signal of a controller. The pump is equipped with
a LED Indicator to show the operating status of the pump.
FUNCTIONS
All functions can be set, activated or deactivated using the operating knob or via
an external PWM signal.
1
4
6
7.5
SETTINGS VIA OPERATING KNOB
Variable differential pressure (Δp-v)
The differential-pressure setpoint H is increased linearly over the permitted
volume flow range between ½H and H (Fig. A). The differential pressure
generated by the pump is adjusted to the corresponding differential-
pressure setpoint.
Constant speed
The pump is operating continuously with the preset speed (Fig. B)
Venting function:
During automatic venting function (10min) the pump runs alternately with
high and low speeds to help air bubble from the pump to agglomerate and to
lead direct to the venting valve of the installation.
PWM 1 mode - heating
In PWM 1 mode – heating, the pump speed is controlled depending on the
PWM input signal (Fig. C).
PWM 1
Behaviorin the event of a cable break:
If the signal cable is separated from the pump, e.g. due to a cable break, the
pump accelerates to maximum speed.
PWM 1 mode - geothermal
In PWM 1 mode – geothermal, the pump speed is controlled depending on
the PWM input signal (Fig. C).
Behaviorin the event of a cable break:
If the signal cable is separated from the pump, e.g. due to a cable break, the
pump accelerates to maximum speed.
PWM 2 mode - Solar
In PWM 2 mode – solar, the pump speed is controlled depending on the
PWM input signal (Fig. D).
Behaviorin the event of a cable break:
If the signal cable is separated from the pump, e.g. due to a cable break, the
pump stops.
The mixing temperatures
are only a reference and might
be different under certain
conditions.
Mixing temperatures are
dependent on boiler temperature
and return temperature from
heating circuit.
47°C
54°C
60°C
1
4
Led Indicator
6
7.5
External control via a PWM signal
The actual/setpoint level assessment required for control is
referred to a remote controller. The remote controller sends a
PWM signal as an actuating variable to the Pump.
The PWM signal generator gives a periodic order of pulses to
the pump (the duty cycle), according to DIN IEC 60469-1. The
actuating variable is determined by the ratio between pulse
duration and the pulse period. The duty cycle is defined as a
ratio without dimension, with a value of 0 ... 1 % or 0 ... 100 %.
See PWM signal logic 1 (heating and geothermal) fig. C and
PWM signal logic 2 (solar) fig. D.
RECOMMENDED PUMP SETTINGS
1
1
1
4
4
4
6
6
7.5
7.5
1,5 – 4
Please revise the correct position of maximum pressure to
avoid damage or flow noises in the system.
CIRCULATION UNIT PERFORMANCE
A
Variable pressure
Variabel Pressure
70
60
7,5
50
6
40
5
30
20
10
0
0,0
0,5
1,0
B
Constant speed
Constant speed
80
7,5
70
60
6
50
40
5
30
4
20
10
1
0
0,0
0,5
1,0
C
80
70
5%
60
50
15%
40
25%
30
35%
20
45%
10
55%
65%
0
0,0
0,5
1,0
D
80
70
98%
60
85%
50
40
75%
30
65%
20
45%
10
35%
0
0,0
0,5
1,0
4 (28)
Applications
1
1
1
1
1
1
4
4
4
4
4
4
6
6
6
6
7.5
7.5
7.5
7.5
1 – 3
1,5 – 4
4
3
2
1,5
2,0
2,5
3,0
3,5
4,0
m3/h
WM 1
3
2
1,5
2,0
2,5
3,0
3,5
4,0
m3/h
PWM1
1,5
2,0
2,5
3,0
3,5
4,0
m3/h
PWM2
7.5
55%
1,5
2,0
2,5
3,0
3,5
4,0
m3/h
1
1
4
4
6
6
7.5
7.5
PWM 1
PWM 1
PWM 2
1
1
4
4
6
6
7.5
7.5
PWM 1
PWM 2
1
1
4
6
7.5
1
1
4
4
6
6
7.5
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