WattMaster WCC II - Manual (Page 16)

Section 1: General Instructions
WCC II Operator’s Guide
Operator Interfaces 1-6
Binary Outputs
A binary output on the SAT II controller is the electronic equivalent
of a relay contact which is used to complete a 24 VAC circuit to
activate on/off devices such as relays, 2-position valves, etc. The
binary output contacts cannot be used to complete a DC voltage
circuit; they will work with AC circuits only. The binary output
terminals are labeled H, COM, and C.
The SAT II controller is capable of providing 16 binary (on/
off) outputs. Each binary output requires 1 chip switch which is
purchased separately and is fi eld installed.
The terminals for the binary outputs are found at the lower left hand
corner of the SAT II controller. The “COM” to “H” contacts are
referred to as K1h-K8h. The “COM” to “C” contacts are referred
to as K1c-K8c.