Operating Instructions and Installation Instructions

VARINO GRANDE 350 - 600
We reserve the right to make changes to dimensions and construction 25 Edition 10.07.2015
© Copyright YGNIS AG CH-Ruswil
9.5. Explanations of the operating hours and pulse counter display
Operating hours 9999 = 0-9,999 hours
999.9 = 10,000-99,999 hours
display in steps of 10
99.99 = 100,000 - 279,000 hours
display in steps of 100
Pulse counter 9999 = 0-9,999 pulses
999.9 = 10,000-99,999 pulses
display in steps of 10
99.99 = 100,000 - 279,000 pulses
display in steps of 100
The operating hours and start pulses are overwritten in the EPROM in a 24-hour cycle. After a power failure, the
counter shows the value that was stored before the failure occurred.
The maximum counter reading is 279,000 hours or approx. 32 years. After that, it returns to 0.
9.6. Display of interruptions in the condensing unit
When an error occurs this appears automatically on the display. All figures flash in the display.
The first figure shows E for ERROR, the two following figures designate the error code.
For help in the event of errors see chapter 9.9, for the various error codes with their meaning see Annex 1: Error
codes.
9.7. Start process of the condensing unit
9.7.1. Normal starting sequence
step
display
process
a
1
The mechanical ventilation is started (optional)
b
Check whether the differential pressure monitor of the room ventilation is closed
(optional)
c
The external safety gas valve is opened
d
The burner moves to 50% load position
e
5
The gas pressure monitor is inspected
f
The air pressure monitor is inspected (must be open)
g
The combustion air fan is started and run to maximum speed
h
The air pressure monitor is inspected (must be closed)
i
1
The burner ventilates the combustion chamber for 30 seconds
k
The burner moves to start position
l
The combustion air fan is run to the starting speed
m
2
The preliminary heating time is started (approx. 10 seconds)
n
The gas valve (multiblock) is opened
o
The burner ignites
p
Switching over from ignition by incandescence to ionisation measurement
q
3
Release of the O
2
correction
r
Release of the power modulation of the burner
If a defect or irregularity is noted during the starting procedure then the start is repeated or interrupted, a
corresponding error code is shown in the display.