Robur Next-R, Инструкция по установке, использованию и техническому обслуживанию

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Maintenance
44
7
If it is stuck, replace it. Otherwise, check the correct in-
stallation of fl ue gas exhaust and air intake ducts (likely
excessive pressure drops).
10. After 40 seconds from blower start, check the electrodes for
sparks. If the electrodes do not spark:
„ Check connection cable.
„ Check the ignition box fuse. If it is broken, replace it.
„
If the fuse is intact but the electrodes do not spark, check
that the ignition box gives consent to the transformer
(contacts J7, see wiring diagram Paragraph 1.4 p. 15).
In this case, replace the transformer, if not, replace the
ignition box.
11.
If the burner starts but stops immediately after sparking:
„
Check that the phase and the neutral of the power sup-
ply are not reversed.
„ Check the position and the integrity of the detection and
ignition electrodes and, if necessary, replace them.
12.
If the burner does not start or no gas fl ows from it:
„
Check gas supply.
„
If gas is being supplied, check the gas valve for voltage
during sparkling. If the correct voltage is applied and the
blower is running, check that the nozzle is not obstruct-
ed. If the nozzle is free, replace the gas valve.
„
If the gas is still being supplied, but no voltage is sup-
plied to the gas valve, check the ignition box fuse. If it
is broken, replace it, otherwise replace the ignition box.
13.
After the burner ignition, check that the fan starts (wait a few
minutes):
„
If it does not start, check the correct operation of the fan
thermostat (except for R15 and R20 models) and, if nec-
essary, replace it. For R15 and R20 models, check the igni-
tion box fuse. If it is broken, replace it, otherwise replace
the ignition box.
„
Check the fan motor condenser and, if necessary, replace
it.
„ If this does still not solve the problem, replace the fan
motor.
7.5
PERIODS OF INACTIVITY
Should you foresee to leave the appliance inactive for a long pe-
riod of time, disconnect it from the electrical and gas mains.
How to deactivate the appliance for long periods of
time
1. Switch the appliance o ff (Paragraph 6.2 p. 40).
2. Only when the appliance is completely o ff , power it o ff
with the main switch/disconnector switch (Detail GS in
Figure 4.1
p. 29).
3.
Close the gas valve.
How to reactivate the appliance after long periods of
inactivity
Before reactivating the appliance, the operator/mainte-
nance technician of the system must fi rst of all:
„ Check whether any maintenance operations are required
(contact the TAC; see Paragraph 7.2 p. 43).
„
Ensure that the fl ue gas exhaust duct and the air intake
are not obstructed.
After completing the above checks:
1.
Open the gas valve and ensure there are no leaks; should
gas smell be noticed, close the gas valve again, do not
switch any electrical devices on and request intervention
by quali fi ed personnel.
2. Power on with the main power supply switch (GS, Figure
4.1
p. 29).
3.
Switch on the appliance by means of the provided con-
trol device (Paragraph 6.2 p. 40).