Orion System SA Controller - Manual (Page 23)

SA Controller Technical Guide
Installation & Wiring
23
SA Expansion Module Binary Inputs
The SA Expansion Module provides 8 Binary Inputs. See Figure 19
below for detailed wiring.
The transformer used for powering the SA Expansion Module must also
be used to power the binary inputs.
Figure 19: OE333-23-SA – SA Expansion Module 8 Binary Inputs Wiring
Warning: Do not apply any voltage greater than 24 VAC to the
binary inputs. Higher voltages will damage the expansion module
and possibly other components on the system.
BI8
BI7
BI6
BI5
BI3
BI4
BI1
BI2
Modular Cable
Connect To SA Controller
Modular Cable
Connect To E-BUS
Distribution Module
(When Used)
24 VAC
GND
SA Expansion Module
10 VA Minimum Power Required
For SA Expansion Module
WARNING!!
Observe Polarity! All boards must be wired with GND-to-GND and 24VAC-to-24VAC. Failure to observe
polarity will result in damage to one or more of the boards. Expansion Module must be wired in such a
way that the expansion module and the controller are always powered together. Loss of power to the
expansion module will cause the controller to become inoperative until power is restored to the
expansion module.
SA
Emergency Shutdown - N.C. Input
Drain Pan Overflow A - N.O. Input
Drain Pan Overflow B - N.O. Input
Water Proof of Flow B - N.O. Input
Air Proof Of Flow - N.O. Input
Remote Forced Occupied - N.O. Input
Water Proof of Flow A - N.O. Input
Dirty Filter - N.O. Input
SA Expansion Module Binary Inputs Wiring
Revised 6/21/11