Pre-heating operation
In addition to post-heating, the CTR-
ADVANZ
control is capable to operate a pre-heating system (through a
PWM-controlled electric resistance) that is automatically triggered when the temperature taken by the
exhaust probe (
Tx
) drops below 1° C and is then goes off when the temperature returns above 3° C. These
are factory set values. The screen shows the pre-heating state:
Pre-heating OFF Pre-heating ON
Alarms
In case of alarms, a flashing icon and writing are displayed; and the alarm will be also indicated by a
flashing red led. The writing may indicate
Dirty filters
or suggest to
Call service
in case of more serious
problems.
In case of problems when reading a temperature probe, the corresponding value will be not displayed on
the screen. The said operation will be inhibited only in case of problems with the exhaust air temperature
probe (
Tx
).
System state display
The synoptic window also shows the heat-recovery VMC unit configuration and operating state. In addition
to the features described in above paragraphs, please note:
