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Building Technologies Basic documentation LMV37.4... CC1P7546en
HVAC Products 22 Operation of basic unit via AZL2… 01.12.2009
22.1.4.4. Error with safety shutdown
P
Vhmins%
Bild 2 3/0707
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Vhmins%
Bi ld 2 4/0707
The display
shows Err:.
The unit initiates safety shutdown.
The display shows current error code
c: alternating with
diagnostic code
d:.
Press
reset
to return to the normal display.
Example: Error code
12 / diagnostic code 0
22.1.4.5. General information
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Vhmins%
Bild 25/0707
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Vhmins%
Bild 26/0707
The unit displays an event which does not lead to
shutdown.
The display shows current error code
c: alternating with
diagnostic code
d:.
Press
reset
to return to the display of phases.
Example: Error code
111 / diagnostic ode 0
&
Note
For meaning of the error and diagnostic codes, refer to chapter Error code list. When an error
has been acknowledged, it can still be read out from the error history.
22.1.4.6. Start prevention
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Vhmins%
Bild 19 6/0208
A non-programmed or not completely parameterized unit,
or a unit whose operating mode was reset or changed,
displays
OFF UPr.
22.1.4.7. Safety loop
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Vhmins%
Bild 19 7/0208
A unit whose safety loop and / or burner flange contact is
open, and a controller ON signal is present, displays
OFF
S
.
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