Dantherm Silencio 600, Руководство по обслуживанию

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57
018717 • Version
1.1 • 23.01.2007
How to replace the temperature sensors,
continued
Procedure,
return sensor
Follow these steps to replace the return temperature sensor:
Step Action
1 Switch of all the power to the unit
2 Release the control board by unscrewing the screw that hold it in place
3 Release the two locking mechanisms in each side of the control board and
carefully pull up the control board
4 Remove the internal front cover at the control board by unscrewing the 12
torx 25 screws
5 Remove the upper left side cover by unscrewing the two torx 25 screws that
hold it in place
6 Remove all cable binders on the faulty sensor
7 Join the sensor head on the faulty sensor with the wires from the new sensor
with adhesive tape or the like
8 Release the wires in terminal 7 and 8 in module X17
9 Draw carefully from inside and thereby lead the wires in place
10 Connect the wires from the new sensor in terminal 7 and 8 in module X17
11 Remount the front and side covers
12 Place the control board in the holder by pushing the control board in place.
Lock the two locking mechanisms in each side of the control board, and
finally tighten the screw that holds it in place
13 Connect the power
Result: The test program runs through all functions.
Check that the unit does not come out with an alarm signal.
In case of an alarm signal, please see section “Fault finding guide”, page 71
Procedure,
supply sensor
Follow these steps to replace the supply temperature sensor:
Step Action
1 Switch of all the power to the unit
2 Release the control board by unscrewing the screw that hold it in place
3 Release the two locking mechanisms in each side of the control board and
carefully pull up the control board
4 Remove the internal front cover at the control board by unscrewing the 12
torx 25 screws
5 Remove the VDI filter from internal side by gripping the lamellas carefully with
both hands from the inside, (or from the outside after having removed one of
the lower side covers – unscrew the two torx 25 screws) and lift up the filter
6 Remove all cable binders on the faulty sensor
Continued overleaf