EH-105
AH output control priorities
Controller controls:
0, ½ or 1/1.
Controller controls:
0, ½ or 1/1.
0, ½ or 1/1 by the
according to the CO2 content, room temperature or room humidity
when ”
” has been selected. See page 29.
according to the
content if time controls do not start up the AH unit.
controls using the
(Mo-Su or Sd).
according to the week clock.
continuous
timed
Forced controls
special calendar.
Air handling enhancement
Auto overrid
The AH unit starts up
CO2
Special calendar
day change
Time control
1
2
3
4
5
6
7
If the controller receives AH unit running
information, AH unit control begins even though the controller
itself has not given the AH unit start up command.
Attention!
8
The AH unit may receive contradicting output controls at the same time. The
controls are prioritised as listed below. The control that is listed higher is
stronger than the control listed at a lower level.
The stop commands in group 1 can only be deleted from the place where it has
been given. An exception is the stop command from the monitor, which can also
be deleted from the controller.
8
9
10
11
12
13
14
STRONGEST
WEAKEST
The AH unit is shut down either by the ”
" switch or when the controller is at
”
” or when a STOP command comes from the bus. An
also shuts
down the AH unit. The AH unit is shut down by relays 1 and 2
Emergency-STOP
Maintenance-STOP
A-alarm
as well as running permit relay 3.
AH output limiting
determined by the outdoor temperature, HRU defrost or cascade control.
Night heating and preheating.
Can only start up the AH unit, if the AH unit receives no
other start up commands. (Exception: night heating and preheating are not activated if
”Switch control Auto is taken into use and the switch connected to the controller is not in
the A position, see p. 44).
A
0
½
1/1
A
0
½
1/1
B-alarm
that shuts down the AH unit.
15
h
1/1
A
0
½
1/1
Air handling enhancement
Sw. override
according to the CO2 content, room temperature, or room humidity
when ”
” has been selected.
(can override external switch controls see p. 29).
1/1 or 1/2 switch control
(press button or timer) connected to the controller
or AC freq. converter override switch SF fConvOverr/ EF fConvOverr.
The output controls' post run delays operate as stipulated by item 9.
”Auto” control is taken into use and the switch connected to the controller is not in the
A-position. The controller drives the AH unit to 0 output. The AH unit output depends
on the position of the selector switch.
Night ventilation, night cooling (can start up the AH unit if the unit is not running according to the time
programs).
