Orion System SA Controller - Manual (Page 21)

SA Controller Technical Guide
Installation & Wiring
21
SA Expansion Module Output Wiring
Figure 17: OE333-23-SA – SA Expansion Module Output Wiring
The SA Expansion Module must be connected to 24 VAC as shown in
the wiring diagram below. Please see Table 1 on page 10 for correct VA
requirements to use when sizing the transformer(s) used for powering
the expansion module.
Also please note that when wiring the SA Expansion Module, its contacts
must be wired as wet contacts (connected to 24 VAC).