15
ENG
“optiMist” +0300065EN - rel. 1.6 - 18/06/2021
3.5 Control signals from external voltage-free
contact, humidostat or thermostat type
ON/OFF (control C)
For humidifi cation / direct evaporative cooling (DEC):
DEC
G0
Fig. 3.d
Cabinet
DEC
NO (OFF) /NC (ON)
GO
COM
For indirect evaporative cooling (IEC):
IEC
G0
Fig. 3.e
Cabinet
IEC
NO (OFF) /NC (ON)
GO
COM
Priority humidifcation / cooling (PR):
G0
PR
Fig. 3.f
Cabinet
PR
NO (winter) /NC (summer)
GO
COM
Indirect evporative cooling enable (REC):
G0
REC
Fig. 3.g
Cabinet
REC
NO (OFF) /NC (ON)
GO
COM
Starting up damper
Fig. 3.h
ON/OFF and limit probe (control CH/CT)
For direct/winter (DEC) humidifi cation:
J9
J24
J2
J3
GR
PEN
GR
PEN
ROA
L
ROA
L
BKUP
BKUP
B
B
B
B
B
B
B
out H/T
M
+ (G)
ROEN
ROEN
CO
M
CO
M
ONOF
ONOF
RKEN
RKEN
FL
UX
FL
UX
G0B
G0B
G0A
G0A
G0A
G0A
G0A
G0A
G0B
G0B
1
2
Fig. 3.i
Key:
1.
humidistat ON/OFF
2.
humidity/temperature limit probe
ON/OFF and limit probe (control CH/CT)
For evaporative cooling / indirect humidifcation (IEC)
J2
J6
B6 B7 B8 GND
IEC
G0
1
2
+VDC
+(G)
M
out H/T
Fig. 3.j
Key:
1.
humidostat ON/OFF
2.
humidity/temperature limit probe or signal