Fast RCF Series, Руководство пользователя

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Heat recovery unit with cooling circuit - RCF -
0208-6180549-rev. 02
13
GB
Controls manual
The control device can perform a comple-
te check of the unit giving a list of possible
alarms. Alarms can be activated and reset
using parameters Pa A01 – Pa A26
Some alarms can be de-activated for a preset
interval of time that is determined by the
relative parameter. The unit is also able to
count the number of events for specific alar-
ms: if the number of alarms in the last hour
exceeds the threshold set for the parameter,
the alarm switches from automatic to manual
reset mode.
Alarms are sampled every 225 seconds.
Example: if the number of events is set to 3,
the duration of the alarm must last between
2*225 seconds and 3*225 seconds for the
alarm to be switched from automatic to
manual reset.
Diagnostics
225 s 225 s 225 s 225 s
1 2 3
Time
Sampling
Alarm
A M
A: automatic reset
M: manual reset
ALARM: alarm
SAMPLING: alarm sampling
TIME: time
If an alarm is triggered more than once
within one sampling period (225 seconds), it
will only be counted once.
To reset alarms configured for manual reset-
ting, press the ON-OFF button and then
release it.
Manual resetting shuts down corresponding
loads and requires operator intervention
(alarm reset using the ON-OFF button).
Manually reset alarms are used to signal
potential problems that could damage the
system.