PART IV: MAINTENANCE
30
Checking the detection current
To check the detection signal follow the scheme in the picture below. If the signal is less than the value indicated, check the position of
the detection electrode or detector, the electrical contacts and, if necessary, replace the electrode or the detector.
Minimum detection signal: 3.5Vdc
Fig. 12 - Detection with detector QRI...
Flame detection probe
To clean/replace the detection photocell, proceed as follows:
1
Disconnect the system from the electrical power supply.
2
Shut off the fuel supply;
3
remove the photocell from its slot (see next figure);
4
clean the bulbe if dirty, taking care not to touch it with bare hands;
5
if necessary, replace the bulb;
replace the photocell into its slot.
Burner service term
- In optimal operating conditions, and with preventive maintenance, the burner can last up to 20 years.
- Upon expiry of the burner service term, it is necessary to carry out a technical diagnosis and, if necessary, an overall repair.
- The burner status is considered to be at its limit if it is technically impossible to continue using it due to non-compliance with safety
requirements or a decrease in performance.
- The owner makes the decision whether to finish using the burner, or replacing and disposing of it based on the actual state of the
appliance and any repair costs.
- The use of the burner for other purposes after the expiry of the terms of use is strictly prohibited.
Seasonal stop
To stop the burner in the seasonal stop, proceed as follows:
1
turn the burner main switch to 0 (Off position)
2
disconnect the power mains
ATTENTION: avoid the electrode to get in touch with metallic parts (blast tube, head, etc.), otherwise the boiler
operation would be compromised. Check the electrode position after any intervention on the combustion head.
CE
P
B
E
Replacing the ignition electrode
5
1
To replace the ignition electrode, proceed as follows:remove the burner cover
2
disconnect the electrode (E) cable (CE);
3
remove the combustion head (see par. “Removing the combustion head”);
4
loose screw (B) that fasten the ignition electrode (E) to the burner pilot (P);
remove the electrode and replace it, referring to the values quoted on figure.
Содержание RG2050
Страница 26: ...PART III OPERATION 26 Pump flow rate Nozzle flow rate...
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Страница 37: ...Siemens LMV5x Service Manual M12920CC rev 2 1 08 2017...
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Страница 45: ...9 1 4 1 Servomotor wiring example 1 4 2 Bus cable wiring on LMV5x and AZL doors 1 4 3 EARTH connection example...
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Страница 84: ...Note Specifications and data subject to change Errors and omissions excepted...
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Страница 88: ...Annex 2 Example for sensor cable...
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