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00RNO0333-B (U0625869)
EVO S -
Installation and Servicing
• Activate the DHW mode
Line No. Value
• Configuration
menu
Save the sensors
Save sensors
(6200)
Yes (switches back
to no automatically)
F. ELECTRICAL AND HYDRAULIC VALIDATION
•
Inputs/outputs test
menu
Check the outputs
Alarm relay
Relay test
(7700)
Relay output QX1
Tank pump Q15
Relay test
(7700)
Relay output QX3
Reset the outputs
Relay test
(7700)
No test
Check the sensor values
B3 DHW sensor
DHW temp B3/B38
(7750)
in °C
• Configuration
menu
Check the hydraulic diagram
Check no. heat source 1
(6212)
13
Check no. heat source 2
(6213)
0
Check no. storage tank
(6215)
4
Check no. heating circuits
(6217)
0
Diagram: VF23
page 4 / 5
Process description
The consuming circuit keeps the temperature of the tank at 63°C. In this case, the set point of the
boiler = the set point of the consuming circuit (63°C).
If the sensor inside the tank detects a temperature = the set point of the DHW (61°C) -5°C, the
DHW cycle starts. The output temperature of the boiler is then = the set point of the DHW (61°C)
+ over-value (7°C) = 68°C.
The DHW cycle stops when the sensor inside the tank reaches the DHW set point temperature
(61°C). The boiler then returns to the set point of the consuming circuit (63°).