Page 26 - IOM / ROOF-TOP FLEXY™ Series
BRULEUR GAZBRULEUR GAZ
BRULEUR GAZBRULEUR GAZ
BRULEUR GAZ
BURNER DISASSEMBLY FOR SERVICE
AND MAINTENANCE PURPOSES
Please refer to the enlarged diagrams at the end of the
section (Figures 29 to 31) for further help.
- Stop the unit, switch off the main switch and
disconnect the gas supply.
- Disconnect the PCB
switches (Figure 29).
- Remove the flared
flange nuts either on
the solenoid valves
or on the supply float
rails. Do not tamper
with the joints.
- Remove the nozzle
float rail and the
control box. Be
careful not to
damage or change
the setting of the
ionisation sensors or
ignition electrodes.
- Remove the limiters (2) and deflectors (3) (see
Figures 30 to 32).
- Remove the strip crossed by the fume
discharges.
- Release the pressure tap pipes from the pressure
controllers.
- Loosen the screws on the fume box and remove
the assembly with the fans by slightly raising to
release the screws before pulling it towards you.
Always make sure not to damage the PCB.
- Using a clamp, remove the turbines from the
tubes on the fume box side.
- Use a 50 mm diameter nylon brush to sweep
inside the upper and lower tubes. Extract the dust
with a vacum cleaner.
REASSEMBLY
Use the supplied rod in the compartment to reassemble
the turbines. Place the pointed end of the rod inside
Figure 29
the hole on the turbine end. Once inside the tube, push
until the turbine contact the tube. Pull back the rod and
withdraw 2 cm first before giving it ¼ turn. If the rod
unhooks during the procedure, pull out the turbine with
the hook and repeat all the aforementioned steps.
TROUBLESHOOTING
The fan does not work.
- Check the electrical supply as well as the
CLIMATIC™ which should show a heat demand.
- Check the fan motor.
- Check the supply and ensure it can rotate freely.
- Make sure that B17/18 minigas pressure
controller is closed.
- Make sure that B45/46 klixon is neither damaged
nor too hot.
The fan starts without an ignition spark
- Check the ignition electrode position (see Figures
25 & 26).
- Clean any oxide on the electrode.
- Check that the wire or electrode connections are
not earthed.
The fan starts with an ignition spark but without a flame
- Check the gas supply pressure.
- Check the injection gas pressure. Adjust the
pressure on the solenoid regulator, if necessary.
- YV51/52 solenoid valve does not work: check the
supply voltage. Replace it if necessary.
- Bleed the gas line.
The fan rotates, the flame is lit but goes out without
disconnecting
- Gas flow is too low, the pressure drops when the
solenoid valve opens.
The fan rotates, the flame is lit but goes out with
disconnecting (Figure 20)
- Incorrect position of the ionisation sensors.
- Faulty connections of the ionisation electrode.
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