OPERATION VIA B-TOUCH HEAT RECOVERY UNIT
en-46
en
60. Function of inputs The unit has an input (terminal block X1) which can be used
to enable a function to be controlled by an external accessory
such as a smoke or fire alarm.
Values for input
V
ALUE OPTION DESCRIPTION
0 No function The input has no function.
1 Unit off locally - NO The unit is switched OFF when the contact is closed. (This only works in
units to which the input signal is directly connected (locally).)
51 Unit off locally - NC The unit is switched OFF when the contact is open. (This only works in
units to which the input signal is directly connected (locally).)
21 Switch all units on All units are switched ON when the contact is closed.
71 All units off All units are switched OFF when the contact is closed.
6 Heating off The heating is switched OFF when the contact is closed.
56 Heating on
(dependent on software
version)
Heating is available when the contact is closed.
7 change-over signal, cool-
ing
The unit switches from heating to cooling when the contact is closed.
In the event of conflicts between different inputs, cooling has priority.
57 change-over signal, heat-
ing
The unit switches from cooling to heating when the contact is closed.
In the event of conflicts between different inputs, cooling has priority.
9 Release - NO The user is allowed to switch the unit on and off when the contact is
closed.
59 Release - NC The user is allowed to switch the unit on and off when the contact is open.
10 Dirty filter – NO Displays a “dirty filter” warning if the contact is closed for longer than 60
seconds.
60 Dirty filter – NC Displays a “dirty filter” warning if the contact is open for longer than 60
seconds.
30 Smoke extraction When the contact is closed:
•air is extracted.
• no air is supplied.
• an alarm signal (smoke) is sent to the building management system.
31 Fire mode When the contact is closed:
• the unit is switched off.
• any air dampers are closed.
• an alarm signal (fire) is sent to the building management system.
41 Fire alarm When the contact is closed:
• an alarm signal (fire) is sent to the building management system.
40 Smoke alarm When the contact is closed:
• an alarm signal (smoke) is sent to the building management system.
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