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ST-37 – Instruction Manual
III.f) Fuel Container Protection
At the fuel container screw or the fuel container slate (in slate boilers), an
additional temperature sensor is mounted. If the temperature rise is high
(above 65°C), the alarm is sounded: the feeder is activated for 10 minutes
with the fuel being moved into the combustion chamber. The screw sensor
protects the fuel from being combusted in the grate.
ATTENTION:
in the case of a prolonged voltage loss, it is recommended to
empty the boiler furnace in order to prevent the screw sensor or the grate
sensor from being damaged.
III.g) Fuse
The regulator has a network protection WT 6.3A tube fuse.
ATTENTION:
Higher current ratings may cause damage to the controller.
IV. Maintenance
Before and during the heating season, the ST-37 controller should be checked
for condition of its cables. You should also check if the controller is properly
mounted and clean it if dusty or dirty. It is advisable to measure grounding
parameters for the motors (central heating pump, hot consumption water
pump, fan and feeder).
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A LA R M
Feeder Sensor
it is not advisable to use fuses with higher current ratings.
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