Operating Instructions and Installation Instructions

VARINO GRANDE 350 - 600
We reserve the right to make changes to dimensions and construction 22 Edition 10.07.2015
© Copyright YGNIS AG CH-Ruswil
9. Operation
Read this section of the manual with great care and get an installer to explain the heat producing system in all its
different aspects: regulation and control.
9.1. Explanation of the control unit
RESET - Key Release key - fault
PROG - Key Selector key - program
►> - Key Step key
OK - Key Store key
+ - Key Increase parameter value
- - Key Reduce parameter value
Status display
Pressing the "PROG" key changes the program level. Each time the PROG key is pressed, the program changes
one level further.
- Operating level (status display). This program level shows the current status with the boiler temperature.
- Parameter level. In this program level, the different parameters can be called up.
- Information level. This program level gives information about the current statuses and sensor values.
If no key is pressed, the display automatically switches to the operating level (standard picture) after 20 min.
Service plug
Interface for service diagnostics system. The interface is protected against damage by a plastic cover. (only for
expert personnel)
9.2. Operating level (status display)
The first figure shows the status, the last two figures the boiler temperature in °C.
Display Current status of the condensing unit
(figure 1)
0 Waiting status, no heat requirement
1 Pre-flushing, burner ventilates the combustion chamber
2 Ignition procedure of the burner
3 Burner in operation
4 Burner in operation, status "Intelligent Modulation Control"
5 Waiting status for - minimum gas pressure
- air pressure
- desired burner position