Unigas HR91A, Инструкция по установке, использованию и обслуживанию

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PART IV: MAINTENANCE
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9.8 Cleaning and replacing the detection photocell
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;
6 replace the photocell into its slot.
9.9 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
3 close the fuel valve of the supply line
9.10 Burner disposal
In case of disposal, follow the instructions according to the laws in force in your country about the “Disposal of materials”.