Specifications

151051 i
Content
Section 1
Overview
...................................................................................................................................................... 1-1
1.1 SK-2224 Description ................................................................................................................................ 1-1
1.2 How to Contact Silent Knight .................................................................................................................. 1-1
Section 2
Agency Requirements
............................................................................................................... 2-1
2.1 FCC Warning ........................................................................................................................................... 2-1
2.2 Underwriters Laboratories (UL) .............................................................................................................. 2-1
2.2.1 Requirements for All Installations ................................................................................................ 2-1
2.2.2 Requirements for Local Protected Fire Alarm Systems ................................................................ 2-1
Section 3
Before You Begin Installing
............................................................................................... 3-1
3.1 What's in the Box? ................................................................................................................................... 3-1
3.2 Optional Accessories ................................................................................................................................ 3-2
3.3 SK-2224 Board Layout ............................................................................................................................ 3-3
3.4 Electrical Specifications ........................................................................................................................... 3-4
3.5 Environmental Specifications .................................................................................................................. 3-4
3.6 Mounting the SK-2224 ............................................................................................................................. 3-5
3.7 Assembly .................................................................................................................................................. 3-6
3.8 Wiring Specifications ............................................................................................................................... 3-7
3.9 Calculating Current Draw and Standby Battery ...................................................................................... 3-8
3.9.1 Worksheet Requirements .............................................................................................................. 3-8
Filling in the Current Draw Worksheet, Table 3-6 (Section 3.9.3) ............................................... 3-8
3.9.2 Maximum Battery Standby Load .................................................................................................. 3-8
3.9.3 Current Draw Worksheet .............................................................................................................. 3-9
Section 4
Hardware Installation
.................................................................................................................. 4-1
4.1 AC Power ................................................................................................................................................. 4-1
4.2 Battery Connection .................................................................................................................................. 4-2
4.3 Initiation Circuit Installation .................................................................................................................... 4-3
4.3.1 Contact Wiring .............................................................................................................................. 4-3
4.3.2 Two-Wire Smoke Detector Wiring ............................................................................................... 4-3
4.3.3 Four-Wire Smoke Detector ........................................................................................................... 4-4
4.3.4 Notification Circuit Installation .................................................................................................... 4-5
4.4 Alarm and Trouble Relays ....................................................................................................................... 4-5
4.5 Auxiliary Power Circuit ........................................................................................................................... 4-5
4.6 Door Release Wiring ................................................................................................................................ 4-6