SystemAir Topvex TR20 User Manual

24
| 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
T14:AI6 0..10V
Analog input max. 550mA
T14:0V -0V 0V DC Power
T15:24V +24V
Duct pressure sensor
Exhaust air
24V DC Power
T15:AI5 0..10V
Analog input max. 550mA
T15:0V -0V 0V DC Power
T16:24V +24V
Duct pressure sensor Supply
air
24V DC Power
T16:AI4 0..10V
Analog input max. 550mA
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 L
Cooling pump start DO Relay Max 4A
T63: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
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 -
Sum alarm control
DO Relay Max 4A
T66:COM -
Sum alarm signal circuit
254050 | A001

SystemAir Topvex TR20 Specifications

General

Brand	SystemAir
Model	Topvex TR20
Category	Air Handlers
Language	English