CORRIGO VENTILATION 3.6 MANU

52 Chapter 5 Functional description Manual Corrigo Ventilation, revision V
DO
Outdoor air damper
DO
Exhaust air damper
DO
Fire damper
DI
Fire alarm
DI
Fire damper end switch monitoring
5.7 Extended running and External switch
The digital inputs for extended running can be used to force the unit to start although the timer says
the running mode should be “Off”. Normal running always takes precedence over reduced speed.
"Extended Operation, Normal" takes precedence over the timer output for reduced speed.
For 2-speed fans and pressure/flow controlled fans there are inputs for normal speed and reduced
speed. The unit will run for the set time. If the running time is set to 0 the unit will only run as long
as the digital input is closed.
The signal ”External switch” will stop the unit, even if the timer or one of the signals "Extended
Operation, Normal" or "Extended Operation, Reduced" says it should stay in running mode.
In- and outputs
DI
Extended Operation, Normal
DI
Extended Operation, Reduced
DI
External switch
5.8 Time-switch outputs
Up to five digital time-switch outputs can be configured. Each timer channel has a separate scheduler
with two periods per week-day.
Timer output five can be used to control the function Recirculation. See 5.1.11.
In- and outputs
DO
Extra time channel 1
DO
Extra time channel 2
DO
Extra time channel 3
DO
Extra time channel 4
DO
Extra time channel 5
5.9 Alarms
Alarm handling
Alarms are indicated by the red alarm LED on the front or on E3-DSP.
All alarms can be monitored, acknowledged and blocked using the display and buttons or via E3-
DSP. There is also a digital input for acknowledging all alarms.
Alarm priorities
Alarms can be given different priority levels, A-alarm, B-alarm, C-alarm or not active. Digital outputs
can be bound to act as alarm outputs for A-alarms or B/C-alarms or both A- and B/C alarms. The
digital outputs can be inverted, so that an inoperative alarm gives a high output and vice versa. A- and
B-alarms must be acknowledged to reset. C-alarms automatically reset as soon as there is no longer a
cause for alarm.