Stulz CRL 210 CW, Original Instructions Manual

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8
/08.2014/ humidifier EN
Do not touch electronical components, without taking care of protective ESD measures.
12.1.4 Fault elimination
Important! Most operational malfunctions are not caused by faulty equipment but rather by improper installation or
disregarding of planning guidelines. Therefore, a complete fault diagnosis always involves a thorough examination
of the entire system. Often, the steam hose connection has not been properly executed, or the fault lies with the
humidity control system.
12.1.4.1 Fault indication
LED on control unit ECCM/S Description
yellow red
blinks perma-
nently
–––
Drain/info key has been pressed shortly (manual draining in progress)
lights ––– Steam cylinder maintenance due or maintenance indication not reset.
lights lights
Steam cylinder maintenance not executed or maintenance indication not
reset.
––– lights Fatal malfunction.
If the yellow or red LED lights, press drain/info key (at least 3 seconds) until yellow (“Warning”) or red (“Error”) LED
starts blinking intermittently (info mode). The amount of “blinks” per interval indicates the type of malfunction.
– Yellow LED “Warning” blinks intermittently
A malfunction is present. The control unit checks whether there is a temporary problem (e.g. water supply interrupted
for a short time) or whether it can resolve the problem by taking necessary measures.
– Red LED “Error” blinks intermittently
The control unit, after several attempts, fails to solve the problem (number of attempts depends on the type of
malfunction) or the problem obstructs further operation. In this case the heating voltage is interrupted via the main
contactor.
12.1.4.3 Notes on fault elimination
DANGER! Danger of electric hazard!
For the elimination of faults set the steam humidifier out of operation as described in chapter 12.1.3.5, separate the
unit from the mains (test with voltage tester) and secure it against inadvertent power-up.
12.1.4.2 Resetting the maintenance indication
After completing maintenance work, the maintenance indication (yellow LED) must be reset as follows:
• De-energize the humidifier board.
• Press drain key and keep pressed.
• Switch on humidifier board.
• Keep drain key pressed until the system test is completed (approx. 10 seconds).