Zehnder ComfoVar Aero Manuel D'installation Et D'entretien page 61

function error or malfunction
ComfoNet no connection between CM
and VM-PCB
error code received from VM
Modbus Modbus connection error
operating failed to achieve flow set
system point within 10 minutes
difference between supply
and extraction air flows is
more than 2.5% for a basic
system and more than 5% for
a connect system
update update not successful
self-test failed to run self-test
everything general undefined and
non-critical errors (e.g. too
high current)
10001124369-0123-zw-zw-A4 ComfoVar Aero Installer_Service Zehnder-General_BOOK_2.indb 61 10001124369-0123-zw-zw-A4 ComfoVar Aero Installer_Service Zehnder-General_BOOK_2.indb 61
location visualisation
web server and web server: brief description of
LED the error and of the possible
cause
LED: ComfoNet LED flashes
fast
Web server and web server: display the
LED received error code
LED: the error LED is on
(critical error)
web server and web server: brief error
LED description
LED: Modbus LED flashes fast
(e.g. internal fault,
communication fault,
configuration fault)
web server and web server: brief description of
LED error
LED: error LED is on
(critical error)
web server and web server: brief description of
LED the error and of the possible
cause (e.g. open windows
and/or doors)
LED: the error LED is on
(non-critical error)
LED all LEDs on the CM-PCB are
flashing
web server brief description of the fault
and its possible cause (e.g. no
VMs, system not yet
commissioned)
(critical error)
web server and Web server: provide as much
LED information as possible
LED: the error LED is on
(non-critical error)
action
N/A
N/A
N/A
N/A
N/A
N/A
restart the self-test until it is
successful
N/A
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