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USE AND FUNCTIONS OF THE CONTROLLER
ABOUT THE CONTROLLER
The controller enables efficient use and operational control of the mixer system.
Intelligent control of the two parallel primary circuit pumps optimises energy consumption and ensures 60% system perfor-
mance even in the event of a malfunction in one of the pumps.
- When DHW is drawn off, the controller switches on the first pump. If this pump is not able to provide the required flow,
the controller then switches on the second pump to increase the flow and satisfy the user’s request. The controller also
switches the second pump on if DHW temperature fails to reach the setpoint within 5 seconds of the first pump being
switched on.
- If the demand for DHW falls significantly, the controller switches the second pump off to save energy and optimise
control of DHW temperature.
- A heating curve can be set for the primary circuit using dedicated control parameters (default min. temp. 48 °C; max.
temp. 60°C) to satisfy hot water requests instantly while avoiding the heat loss typically encountered with fixed setpoint
mixing systems.
At the time of the product being supplied, all the above parameters are factory set at default values; these can be re-
programmed, by an expert service technician, according to the demand at the point of use. The controller is not only
functional but extremely easy to use thanks to a virtually self-explanatory user interface. For each of the single setting
procedures, the keys are assigned to specific functions and explained. The controller menu contains key words for the
measured values and settings, as well as help texts and graphs.
MAIN CHARACTERISTICS:
- 0 - 10V output for pump speed control
- Backlit display showing text and graphic content
- Simple viewing of current measurement values
- Analysis and monitoring of the system by means of sta-
tistical graphs, etc.
- Extensive setting menus with explanations
- Menu lock: activated to prevent unintentional alteration
of settings
CONTROLLER TECHNICAL SPECIFICATIONS
Electrical specifications:
Voltage
/- 10%
Frequency 50...60Hz
Current draw
2V A
Contact capacity:
- total
460 VA (outputs 1-4)
- per relay
460 VA for AC1 / 185 W for AC3
- pump speed control
0-10 V output, internal load 10 kΩ
Internal fuse
2Aslow-blow 250V
Ingress protection/class
IP40/II
Input sensors
4 x 1 x VFS (vortex flow sensor)
Temperature sensors:
Immersion sensor
Pt1000, e.g. TT/P4 up to 95 °C
Pipe-mounted sensor
Pt1000, e.g. TR/P4 up to 95 °C
Vortex flow sensor
return flow and temperature measurement
Sensor distance
PT1000:2x1mm² up to 30 m max.
Maximum VFS cable length
up to 3 m max.
Temperature resistance table for Pt1000 sensors
°C
0
10
20
30
40
50
60
70
80
90
100
Ω
1000
1039
1077
1116
1155
1194
1232
1270
1308
1347
1385
b
The controller must only be installed, put into service, repaired and changed by trained and qualified technical
personnel.
Содержание SC ACS 160 E
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