O
PERATION
VIA
B
-
TOUCH
H
EAT
RECOVERY
UNIT
en-40
en
60. Function of input
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
O
PTION
D
ESCRIPTION
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).)
6
Heating off
The heating is switched OFF when the contact is closed.
9
Release - NO
The user is allowed to switch the unit on and off when the contact
is closed.
10
Dirty filter - NO
Displays a ‘dirty filter’ warning if the contact is closed.
21
Switch all units on
All units are switched ON when the contact is closed.
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 sys-
tem.
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.
40
Smoke alarm
When the contact is closed:
• an alarm signal (smoke) is sent to the building management sys-
tem.
41
Fire alarm
When the contact is closed:
• an alarm signal (fire) is sent to the building management system.
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).)
56
Heating on
(dependent on software
version)
The heating is switched ON when the contact is closed.
59
Release - NC
The user is allowed to switch the unit on and off when the contact
is open.
60
Dirty filter - NC
Displays a “dirty filter” warning if the contact is open.
71
All units off
All units are switched OFF when the contact is closed.
