Preliminary Checks; Air Pressure Switch Setting, Ionisation Current Measurement - elco EK01B.9 G/F-ZT Betriebsanleitung

Start up

Preliminary checks

Air pressure switch setting / Ionisation current measurement
Preliminary checks
Before starting up the burner the
following tests and checks must be
carried out.
Operating regulations of the heat
–
generator manufacturer
Adjustment of :
–
– the temperature controller
– the pressure controller
– the limiter
– the safety switches
Gas connection pressure
–
min. 20mbar flow pressure.
Tightness of the gas-carrying
–
elements elements
Ventilation of the fuel-carrying pipes
–
Open waste-gas path
–
adequate fresh air supply.
–
Test of the burner program run
before the first gas release
• Close gas shut-off valve before the
gas valve assembly.
• If there is no adequate gas pressure
before the compact gas assembly,
override the gas pressure switch
(clamp 2 and 3). Release voltage
from burner to do so.
• Start burner by switching on the heat
generator and check program run.
• Blower starts with a delay which
depends on the position of the
control and safety unit.
Air pressure switch setting
Factory setting : 1.0mbar
The release point must be controlled
and if necessary set during burner start
procedure.
• Install pressure gauge, for this
operation install T-piece in pressure
tube.
• Start the burner.
• Set the release point ca. 15% under
the now valid release pressure.
• Release point modification per
rotation : ca. 0.2mbar.
Rotate setting screw to the right :
higher pressure
Rotate setting screw to the left :
lower pressure.
Ionisation current measurement
The ionization current can be measured
at the measuring point provided for this
purpose. Remove measuring bridge B1
and connect a multimeter with a
measuring range of 0-100µA.
The monitor current must be at least
8µA.
0304 / 13 011 289A
• Pre-ventilation time (24s)
• Pre-ignition time (3s)
• Valves open
• Safety time (3s)
• Fault after expiry of the safety time
with locking of the control and safety
unit (fault lamp illuminates)
• Release voltage from burner by
disconnecting the power supply and,
if required, remove the gas pressure
switch wire override.
• Reconnect power supply
• Press the fault clearance button R to
unlock the control unit.
EN
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