09/2018 - Art. Nr. 4200 1092 1400A 25
Commissioning
Checks before start-up
Ionisation current measurement
Checks before start-up
Before commissioning the burner, the
following checks and inspections are to
be carried out
- Operating instructions of the heat
generator manufacturer
- Setting of
- temperature regulator
- pressure regulator
- limiter
- safety guard
- Gas connection pressure min. 20 mbar
flow pressure.
- Leaks in the gas supply elements
- venting of the fuel supply pipes.
- Open flue gas ducts, an adequate
supply of fresh air.
Testing the burner program
sequence before initial gas release
• Close the manual shut-off valve
upstream of the compact gas unit.
• Bridge the gas pressure switch
(terminal 2 and 3) if necessary if there
is insufficient gas pressure upstream
of the compact gas train. Disconnect
the burner from the power supply first.
• Start the burner by switching on the
heat generator and test the program
sequence.
• The blower starts after a delay,
depending on the automatic combus-
tion control unit setting.
• Pre-ventilation period (54s)
• Pre-ignition period (3s)
• Solenoid valves open
• Safety time (3s)
• Safety shutdown at the end of the
safety time with locking of automatic
combustion control unit (malfunction
lamp lit)
• Disconnect the burner from the power
supply by disconnecting the electrical
connection and remove the wire
jumper for the gas pressure switch if
necessary.
• Reconnect the electrical connection.
• Unlock the automatic combustion
control unit by pressing the reset
• button R.
Ionisation current measurement
The ionisation current can be measured
at the measuring point intended for this
purpose. To do this, remove measuring
bridge B1 and connect a multimeter with
a measuring range of 0-100 µA.
The monitoring current must be at least
8 µA.
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