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Systems
4.1
System code number 9
Antifreeze required
heat exchanger.
T
BA2
BA5 BA1
F3
(AE2)
Y2
Y1
Fig. 13 · Anl 9 (system code no. 9) (air-conditioning, only humidification)
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
T
T
BE3
BE2
(BA4)
On/off
Speed 1
F4
Y3
AA
Ext. ON
T
rF
BE1
BA2
BA3
Speed 2
F1
F6
(AE1)
(AE2)
Ext. speed 2
rF
Set point T Set point rH
L
T
BE4
(BE7)
F8
F9
(F7)
F5
AE4
(AE3)
Specifications in parentheses
can be selected as an alternative
rF
T
F7
F2
(AE4)
(AE3)
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