40 CompTrol Interface V4.0.x | Issue 21-05-2021 | 1000932
Program 2 – temperature setpoint denition with window contact function
8.4 Window contact function Auto ON
If no signal is applied at digital input X2a-D1, the running indoor unit switches o as soon as a
window with a connected window contact is opened. The air conditioning unit cannot be switched
back on as long as the window remains open. What happens next depends on whether the
Auto ON function is activated.
Auto ON function deactivated:
– Indoor unit is running.
– Window is opened.
Indoor unit switches o. As long as the window remains open, the indoor unit cannot be
switched on again via the wired remote control.
– Window is closed.
Indoor unit remains o but can be switched on again via the wired remote control.
Auto ON function activated:
– Indoor unit is running.
– Window is opened.
Indoor unit switches o. As long as the window remains open, the indoor unit cannot be
switched on again via the wired remote control.
– Window is closed.
Indoor unit switches on again if it was running before the window was opened.
If the indoor unit was o before the window was opened, it stays o.
8.5 Digital input assignment in program 2
Input Function Description
X2a-D1
Window contact
signal
The interrupted signal switches o the running indoor unit.
The unit cannot be switched on while the window contact signal is inter-
rupted (see“8.4 Window contact function Auto ON” on page 40).
X2a-D2 Cooling mode
The signal switches the indoor unit to Cooling mode. The mode can
then no longer be changed using the wired remote control.
X2b-D3 Heating mode
The signal switches the indoor unit to Heating mode. The mode can
then no longer be changed using the wired remote control.
X2a-D2
and
X2b-D3
Fan mode
When both the heating and cooling signals are applied simultaneously,
the indoor unit switches to Fan mode. The mode can then no longer be
changed using the wired remote control.
X2b-D4
Analog input
evaluation
Analog input X3-S is only evaluated if a signal is applied to X2b-D4 (see
“5.2.1 Evaluating the analog input” on page 25). If no signal is
applied, a setpoint can be specied via the wired remote control.
X2c-D5
Fan speed F1
(low)
The signal switches the indoor unit to fan speed F1. The fan speed can
then no longer be changed using the wired remote control.
X2c-D6
Fan speed F2
(medium)
The signal switches the indoor unit to fan speed F2. The fan speed can
then no longer be changed using the wired remote control.
X2c-D5
and
X2c-D6
Fan speed F3
(high)
If fan speed F1 and fan speed F2 signals are both applied simultane-
ously, the indoor unit switches to fan speed F3. The fan speed can then
no longer be changed using the wired remote control.
Table 21: Digital inputs in program 2
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