baltur TBML 80 PN Manual Instructions For Use page 61

CHECKS
After starting up the burner, check the safety devices (photoresistance,
block, thermostats).
• The photocell is the flame control device and so it should trip if
the flame extinguishes during operation (this check should be
made after at least 1 minute after ignition).
• The burner should be capable of blocking itself and remain
so when a normal flame does not come on during start-
up cycle and within the preset time on control box. The
"lock-out" causes the motor and the burner to stop imme-
diately and corresponding "lock-out" warning led lights up.
To check the function flame detector and lock-out system pro-
ceed as follows:
- Start the burner.
- After at least one minute, remove the photocell from its hous-
ing and simulate flame failure by wrapping a dark rag around it.
(use a rag to close the specific opening on the flame detector).
The burner flame must go out. The device should lock-out
within the time indicated in the program. The control box can
be reset only manually by pressing the specific button.
• To check the thermostat efficiency, run the burner until the water
in the boiler reaches a temperature of at least 50 °C and then turn
the thermostat control knob to reduce the temperature until an
opening click is heard and simultaneous stopping of the burner.
The thermostat should trip within a maximum tolerance of 5 to 10
°C in respect to the control thermometer (boiler thermometer);
if not, change the setting on the thermostat scale to match that
of the thermometer.
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