Page 74 - IOM / ROOFTOP BALTIC Series - 0704 - E
HEATING : gas burner
GAS BURNER TROUBLESHOUTING
If faults reported on CLIMATIC
-Reset the CLIMATIC.
-Check voltage: 230V after circuit breaker.
-Check GAS isolation shut-off valves are open.
-Check GAS pressure at the inlet of the GAS valves. It must be >20 mbar when the Burners shut down.
-Adjust the set points to priorities the burner. Increase the value of the room temperature set point to a temperature higher
than actual room temperature.
STAGE NORMAL POSSIBLE POSSIBLE
OPERATION FAULT ACTION SOLUTION
All L.E.D. OFF + Check connections
= fault on the on the blower + Replace
blower thermostat thermostat thermostat
Yellow & red + Check valve's
Heating Green, yellow & L.E.D. OFF opening + Restore
Requested red L.E.D. ON = lack of gas & supply gas supply
supply pressure
Red L.E.D.OFF
= fault on the + Check thermostat's + Replace
superheat thermostat operation after thermostat
on the gas burner manual reset
support bar
After 10 seconds + Check connections of the control
safety shutdown block on the gas valve + Repositioning of
are running + Check impedance of electro the control
by the ignition valve's coils: block on the valve
control block (1) = 2.90k
; + Replace
(2) = 1.69k
(fig. n° 21, p 71) valve
L.E.D ON Extraction Fans Nothing happens + Check the free movement
of the fan wheel
+ Check Electrical connection + Replace fan
on the Gas Ignition
Control Block and + Replace EF
on EF connection Board connection
+ Check the Fan supply voltage board If necessary
+ Check the fire-up electrode
+ Check the pressure drop + Re-position the
After 30 to at the pressure switch: pressure switch tube
45 seconds : Continuous It must be higher than 165 Pa
Extraction Fan pre-ventilation Ventilation +Check the good operation + Change the
is ON the fire-up without sparks of the pressure switch pressure switch
electrode from fire-up using an Ohmmeter and
should spark electrode by artificially creating a
depression in the tube
After 4 seconds + Check injection pressure + Remove the air from
the GAS Burner during start-up the Gas pipe-work
still not operating (Value for High Heat) + Adjust the injection
and safety pressure to
shutdown +Remove the control box high heat value
by the Ignition from the gas block + Change the Control
Continuous Control Block Box if the Gas
ventilation After a few valve is OK
and sparks seconds the Within 4 seconds + Check the Position and +Check the whole
from fire up gas burner the gas Burner connection of the Ionisation electrical supply
electrode fires-up fires-up BUT Probe. It must not
safety shutdown be Earthed (230V) + Adjust the supply
from the Ignition + Check that R.C circuit and injection pressure
Control Block of the gas burner's if gas is different
transformer is well from natural gas
connected to the neutral polarity G20 :( G25 Gas of
+ Measure the Ionisation Current : Groningue for example)
It must be higher
than 1.5 microAmps.
+ Check the Type of GAS
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