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54
2.4.3 BURNER THERMOSTICKER
°C
°F
°C
°F
60
140
65
149
70
158
75
167
80
176
85
185
90
194
°C
°F
°C
°F
60
140
65
149
70
158
75
167
80
176
85
185
90
194
°C
°F
°C
°F
60
140
65
149
70
158
75
167
80
176
85
185
90
194
Fig. 42
Viewing of the sticker with the temperature of the combustion chamber
under normal operating conditions.
Viewing of the sticker with the temperature of the combustion chamber
between 60° and 65°C.
Viewing of the sticker with the temperature of the combustion chamber
between 80° and 85°C.
2.4.4 FEED TUBE THERMOSTICKER
°C
104
°F
219
THERMAX
°C
104
°F
219
THERMAX
Fig. 43
The thermosticker is used to meas-
ure the operating temperature of the
burner body in a certain area. The
temperature measurements pro-
vide indirect information regarding
the condition of the heating system
and the need for preventive action
or maintenance of the burner and
exhaust ducts.
For example: a high temperature of
the burner may indicate a high ash
deposit.
Once the normal operating condi-
tions are restored, the thermosticker
returns to its normal colour (black).
The burner thermosticker must be
checked on a regular basis, and after
any maintenance procedures carried
out on the boiler and/or burner oper-
ating with pellets.
The thermosticker indicates an over-
heating of the pellet feed tube.
The activation of this thermostick-
er may occur if the flue gases flow
into the pellet tube due to a greater
resistance of the exhaust pipe and/or
decrease in the chimney draft.
In these cases, the flexible connection
tube between the screw feeder and
burner body could be damaged.
When activated, the thermosticker
can not return to its initial condi-
tion. Replace the thermosticker once
the normal operating conditions are
restored.
Viewing of the sticker in the initial con-
dition: if the active segment is white,
the temperature has not reached the
activation level (104°C).
Viewing of the sticker in the initial
condition: if the active segment is
dark, the temperature has exceeded
the activation level (104°C).
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