Unigas HP91A, Manual Of Installation - Use - Maintenance

Page: 43 / 87

C.I.B. UNIGAS - M039140CE
43
Adjusting the electrodes position
Adjust the electrodes position, according to the quotes shown on the next picture.
Fig. 34
Cleaning and replacing the detection probe
The photocell working life is about 10000 working hours (about 1 year), at max 50°C after
which it must be replaced.
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 picture);
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.
Checking the detection current
To check the detection current follow the diagram on Fig. 35. 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.
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
Burner disposal
In case of disposal, follow the instructions according to the laws in force in your country about the “Disposal of materials”.
Fig. 35
U
E
TG
Keys
E
electrodes
TA air pipe
TG ignition gas pipe
U nozzle
TA
Control box Minimum detection signal
Siemens LFL1.3..
70µA (with UV detector)
TERMINAL BOARD
MC