Dreizler marathon M 10001.1, Руководство пользователя

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Settings for marathon
®
burners with mechanical linkage
dreizler A 3001 E - 18.12.2015 | A 2070 - 1.12 | EN - 09.11.2012 36
12 Settings for marathon
®
burners with mechanical linkage
12.1 Preadjustment the gas and air dampers for small loads (MIN)
The gas damper must be opened approx. 10° for preadjustment MIN. A slot on the front side of the gas
damper shaft indicates the position of the gas damper.
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Fig. 12-1 Gas damper with linkage
1 Gas
2 Gas damper axis
3 Adjustment lever
4 Counter nut
5 Adjustment rod
6 Damper
Adjust the inclination of the gas damper as follows:
a) Release the adjustment rod at the air damper adjustment lever and and rotate the gas damper into the
correct position, or
b) release the adjustment rod at the gas damper and rotate the gas damper by way of the adjustment le-
ver, or
c) release the gas damper axis on the adjustment lever and rotate the gas damper with a screw driver.
Once MIN has been preset, ensure that the switching cams for MIN is set in such a way that the limit switch
is set to power interruption in MIN position, i.e. is not depressed. The setting of the air dampener as de-
scribed above is to be carried out simultaneously.

Open the servomotor by lifting its lid. The switching cams 1 and 2 act as limiters for the servomotor. Cam
2 stops in position MIN = small load on contact interruption, and cam 1 in position MAX = full load.

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The limit switches are set by rotating the cams on the motor axis in such a way that they depress the limit
switch in the selected step position and thus stop the motor.
NOTICE:
The presetting of MIN for the air and gas damper depend on the required control ratio. The higher the con-
trol ratio, the smaller the MIN position in both dampers.
12.2 Preadjustment the gas and air dampers for full loads (MAX)
In full load operation MAX, the gas damper must be open, i.e. not setting on the axis = vertical. A deviation
of +/- 10° will have hardly any effect on the gas flow rate.
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The servomotor is run into OPEN direction until the air damper is fully opened.

The lever ratio on the air damper adjustment lever and gas damper adjustment lever is to be set in such a
way that the gas damper carries out an according swivel motion into vertical position (i.e. to fully OPEN)
with a swivel range of 90° - 10° = 80°.