
4.1
System code number 9
Control of heat recovery unit (HRU), heating coil, cooling coil and humidification
4
Two control loops: Temperature and humidity control
4
Humidification or humidifying and dehumidifying operation (–> section 5.2)
4
Summer compensation (–> section 6.7)
4
Automatic reversal of operating action for HRU configurable (–> section 5.4.2)
4
Fan operation, 2-speed (–> section 6.8 and 6.11.4)
36
EB 5477 EN
Systems
T
T
rF
rF
rF
T
L
T
T
T
F3
(AE2)
BA2
Y2
Y1
BA5 BA1
F4
AE4
BE3
(BA4)
BE2
BA2 BA3
BE1
BE4
(BE7)
F1
(AE1)
F6
(AE2)
AA
Y3
F8
F9
F7
(AE4)
F2
(AE3)
F5
(AE3)
(F7)
Speed 1
On/off
Speed 2
Ext. ON
Ext. speed 2
Set point T Set point rH
Fig. 13 ·
Anl 9 (system code no. 9) (air-conditioning, only humidification)
Specifications in parentheses
can be selected as an alternative
Antifreeze required
heat exchanger.