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External Input Interlock Function
Window contact logic:
Window contact B1
Closed
Open
Key Card contact logic:
Window contact B1
Closed
Closed
Closed
NOTE
● The previous state consists of On/Off state, Operation mode, cooling and heating setpoint.
● The fan speed and the setback cooling and heating setpoint can be changed at any time
without losing the changes when using the contacts.
● The fan speed is stored for the two main operation modes independantly. Heating only has its
own saved fan speed and Cooling only, Dry and Fan only have their own fan speed.
● Changes made while the Key Card contact is open and the delay timer has not expired
(normal operation) are not saved when closing the contact again.
Installer reference guide
39
Key Card contact B2
Closed
Closed
Key Card contact B2
Closed
Open
Open
Time
/
/
Time
•
/
•
Delay timer < Time
< Reset timer
•
Time > Reset timer
Time < Delay timer
Time > Delay timer
Action
•
The unit is operating normally.
•
The unit returns to the previous
state before opening the contact.
The unit is forced off (operation off):
•
No delay and reset timer
functionality.
•
No setback functionality.
•
Not possible to turn the unit ON
with the On/Off button.
Action
•
The unit is operating normally.
•
The unit returns to the previous
state before opening the contact
if the reset timer has not expired.
•
The unit returns to the "Default
Reset Setting" state (menu
setting) if the reset timer has
expired.
The unit is operating normally.
The unit is forced off (operation off):
•
Depending on whether the
setback functionality is enabled,
setback will work or not.
•
Not possible to turn the unit ON
with the On/Off button.
•
The Reset timer starts counting
after the Delay timer has expired.
4P419250-1 – 2015.10
BRC1E53
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