Specifications

Hardware Installation
151051 4-3
4.3 Initiation Circuit Installation
4.3.1 Contact Wiring
Wire normally open contacts as shown in Figure 4-3. This is the type of wiring that would
typically be used for water flow switches, heat detectors and other normally open devices.
Figure 4-3 N.O. Contact Wiring
4.3.2 Two-Wire Smoke Detector Wiring
Figure 4-4 shows how to connect two-wire smoke detectors to the SK-2224 loops. The figure
uses Silent Knight's SLK-24F with HSB-224 base as an example. You can use any detector
that has been UL listed for compatibility with the SK-2224. Refer to the Appendix for a list of
compatible devices. Refer to Section 5 for configuration options.
Figure 4-4 Two-Wire Smoke Detector Wiring