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2) 2.0 T/H – 3.0 T/H
There are 5 electric bar for water level.
Signal condition method : When electric bar is under water for 1 sec, there is water.
When electric bar is out of water for 1 sec, there is no water.
(Water Level Control for Superheating Prevention)
* Note:
Careful attention is required not so as to be incorrect length and position of the lighting bar when connected 3
terminal after cleaning.
(2) Superheating Prevention Switch
If the boiler main body temperature is raised up abnormally,
the superheating prevention switch is operated and shut off the
burner combustion circuit for protecting the boiler main body
and the risk of fire.
( If the boiler main body temperature is raised up to 200
°
C,
the power is cut off).
(Superheating Prevention Switch)
4-2 Freezing Prevention
For the place where is possible to freeze in the winter time, the blowing-off after operation finished should be
performed and preserve the boiler with the blow valve and main steam valve closed. And also open the upper and
lower cock of the feed water pump and drain the water in the water feeding pipe(refer to figure of feed water pump
on P.11). and also open the plug of the feed water tank blowing-off and the feed water strainer, and then drain the
water in them completely.
* Note:
The water in the softener is impossible to be drained and have high risk of freezing in the winter time. Therefore,
external insulation is required. The pressure gauge and the pressure switch have antifreezing solution in the pipe line.
Therefore after using for period before coming to winter, the antifreezing solution must be refilled.
