4.7.2.2 Topvex SR 09, 11, Topvex TR 09-15 External Connections
Table 2: Connections to external functions
Terminal
block
Description
Remark
PE
Ground
N
N
Earthed neutral (supply voltage)
L1
L1
Phase (supply voltage)
Used for phase 230V 1~
if the unit has this mains
supply
400V 3~/230V 3~
L2
L2
Phase (supply voltage)
400V 3~/230V 3~
L3
L3
Phase (supply voltage)
400V 3~/230V 3~
G0
G0
Reference (Water valve actuator mains
supply)
24V AC
G
G
Mains supply (Water valve actuator)
24V AC
10
DO ref
DO reference
G (24V AC)
12
1
DO 2
Outdoor/Exhaust air damper
24V AC
Max. 2,0 A continuous load
11
L1
Circulation pump hot water system
230V AC
14
1
DO 4
Cooling pump
24V AC
15
1
DO 5
DX Cooling step 1
24V AC
16
1
DO 6
DX Cooling step 2
24V AC
17
1
DO 7
Sum alarm output for DO signals
24V AC
30
AI Ref
AI reference
neutral
31
AI 1
Sensor supply air
Use terminal 30 as reference
40
Agnd
UI reference
neutral
41
2
UAI 1/(UDI 1)
Pressure transmitter extract air
Use terminal 40 as reference
42
2
UAI 2/(UDI 2)
Pressure transmitter supply air
Use terminal 40 as reference
44
UAI 3/(UDI 3)
Frost protection sensor water heating
battery
Use terminal 40 as reference
4
3
DI ref
DI reference
50
B
Exo-line B
Modbus, Exo-line
connection
51
A
Exo-line A
Modbus, Exo-line
connection
52
N
Exo-line N
Modbus, Exo-line
connection
53
E
Exo-line E
Exo-line connection
57
+
LON +
Option
58
-
LON -
Option
59
Egnd
LON Egnd
Option
71
3
DI 1
External alarm
Normally open contact
Use terminal 4 as reference
Topvex SR 09, 11, TR 09-15
Installation instructions
207577
16
Systemair AB