415004 Topvex TR Installation Instructions

Topvex TR800, TR1300, TR1800, TR4000 Installation instructions
Systemair Inc.
21
Connections to external function cont’d
Unit control voltage Description Remark
[TB3] Main [UC]
32 32 AI2 Sensor unit mounted Acts as outdoor air sensor
when no pre-heat equipped
Acts as extra unit sensor with
pre-heat equipped
- 33 Agnd AI reference Ground
34 34 AI4 Sensor outdoor air
Reserved input
2
For units with hydronic or
electric pre-heat equipped
35 35 AI5 Sensor CO2 (Shipped loose, mounted by
others)
Optional accessory
3
40 40 Agnd UI analog reference Ground
41 41 UAI1 Differential pressure transmitter, exhaust
air VAV accessory kit
Optional accessory
3
42 42 UAI2 Differential pressure transmitter, supply air
VAV accessory kit
Optional accessory
3
- 43 Agnd UI analog reference
44 44 UI3 Hydronic re-heat frost protection sensor
(AI)
OR
Electric re-heat overhead alarm (DI)
Reserved input
2
For units with hydronic or elec-
tric re-heat equipped
45 45 UI4 Hydronic pre-heat frost protection sensor
(AI)
OR
Electric pre-heat overhead alarm (DI)
Reserved input
2
For units with hydronic or elec-
tric re-heat equipped
50 B 50 B (+) BACnet MS/TP
51 A 51 A (-) BACnet MS/TP
52 N 52 N (shield) BACnet shield
53 E 53 E (earth ground) BACnet
60 B 60 B (+) EXOline expansion modules
connection (PTE & OTS)
61 A 61 A (-) EXOline expansion modules
connection (PTE & OTS)
- N 62 N (shield) EXOline expansion modules
connection (PTE & OTS)
- E 63 E (earth ground) EXOline expansion modules
connection (PTE & OTS)