26
| Connect accessories in Control unit CU27-C
CU27-C
External accessory connection
Notes
T1:0
1
Smoke detector (Calactro
UG-3-0)
Dedicated input for smoke detection
Analog
inputs
T1:+
2
T14:24V
+24V
CO2/Humidity sensor
24V DC Power max. 550mA
T14:AI6
0..10V
Analog input
T14:0V
-0V
0V DC Power
T15:24V
+24V
Duct pressure sensor
Exhaust air
24V DC Power max. 550mA
T15:AI5
0..10V
Analog input
T15:0V
-0V
0V DC Power
T16:24V
+24V
Duct pressure sensor Supply
air
24V DC Power max. 550mA
T16:AI4
0..10V
Analog input
T16:0V
-0V
0V DC Power
T27:DI6
NO
Preheater alarm
NO Contact
Digital
inputs
T27:REF
COM
T28:DI5
NO
Cooling feedback
NO Contact
T28:REF
COM
T29:DI4
NO
Fire damper actuator
feedback
NO Contact
T29:REF
COM
T30:DI3
NO
External fire alarm
NO Contact
T30:REF
COM
T31:DI2
NO
Extended run
NO Contact
T31:REF
COM
T32:DI1
NO
External stop
NO Contact
T32:REF
COM
T61:DO1
L
Circulation pump heating
DO Relay Max 4A
Digital
outputs
T61:N
N
T61:PE
PE
T62:DO2
+24V
Outdoor damper
DO Relay Max 4A
T62:COM
X2:24V
Terminal row X2
24VDC supply from X2
X2:0V
0V
Outdoor damper
0V supply from X2
T63:DO3
+24V
Exhaust damper
DO Relay Max 4A
T63:COM
X2:24V
Terminal row X2
24VDC supply from X2
X2:0V
0V
Exhaust damper
0V supply from X2
T64:DO4
-
Fire damper control
DO Relay Max 4A
T64:COM
-
Fire damper signal circuit
T65:DO5
-
Run indication
DO Relay Max 4A
T65:COM
-
Run indication signal circuit
T66:DO6
L
Cooling pump start
DO Relay Max 4A
T66:COM
X2:L
Terminal row X2
230VAC supply from X2
X2:N
N
Cooling pump start
N supply from X2
X2:PE
PE
Cooling pump start
PE supply from X2
254050 | A004
Summary of Contents for Topvex SR
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