Fb Function
WE
Anl
Comment
Function block parameter/Range of values (default)
7
Sensor F7,
exhaust air or room
humidity
0 to 9 Fb7 = ON: Sensor active; always active with
exhaust air, exhaust air cascade, room or room
cascade control
Fb7 = OFF: Sensor inactive; always inactive if
Fb18 = ON with AE4F7
8
F8, Potentiometer
Temperature set point
OFF 0 to 9 Fb8 = ON: Set point adjustable by ±5 °C
(with 1000 to 2000
Ω
)
9
F9, Potentiometer
Outdoor air rate
OFF
2, 4
Fb9 = ON: Proportion of outdoor air adjustable
between
Minimum outdoor air rate
(PA) and 100 %
(with 1000 to 2000
Ω
)
F9, Potentiometer
Humidity set point
OFF 6, 8, 9 Fb9 = ON: Set point adjustable by ±20 % rH
(with 1000 to 2000
Ω
)
10 Night purge
OFF 0 to 9 Fb10 = ON: Only with outdoor and room
temperature;
Function block parameters:
START (Night purge enabled)/STOP up to 50 °C;
(24 °C)
STOP (Night purge ends)/10 to START (18 °C)
Temperature difference to outdoor temperature:
0 to 50 °C (5 °C)
11
2-speed fans over
BA2/BA3
OFF 0 to 9 Fb11 = ON:
Select:
BA2 = BA3 = ON; BA2 = AUS, BA3 = ON
Function block parameters:
Delay time
/0 to 60 sec (0 sec)
12 Cold storage
OFF
Fb12 = OFF:
Function block parameters:
START
(Cold storage enabled at outdoor
temperature)/0 to 30 °C (18 °C)
90
EB 5477 EN
Appendix