Unit Status Output Wiring - S&P Duovent Series Wiring Manual

5. UNIT STATUS OUTPUT WIRING

The unit status output wiring has four outputs that can go back to a building management system, the relay outputs
are a run, fault, filter and sensor relay. The contacts is normally open, with the following diagrams providing the
functionality and connection details.
The fault relay will operate depending on the following faults:
Fault Number
1 Electrical heater over-heating
2 Antifreeze protection of water heating
3 Supply fan error
4 Exhaust fan error
5 Regenerator freezing
6 Temperature sensor error – Supply (SUP)
7 Temperature sensor error – Space (MB)
8 Temperature sensor error – Drain (ETA)
9 Temperature sensor error – Outdoor (ODA)
10 Temperature sensor error – Comparative (COMP)
11 Temperature sensor error – Water (RTN)
12 Temperature sensor error – Waste (EHA)
13 Temperature sensor error – External (EXT)
14 Temperature sensor error – Space (CP)
15 Controller battery low
16 SD card error
Description
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