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Content
Section 1
Overview
...................................................................................................................................................... 1-1
1.1
SK-4224 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 Protected Premises (Local) 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-4224 Board Layout ............................................................................................................................ 3-3
3.4
Electrical Specifications ........................................................................................................................... 3-4
3.5
Environmental Specifications .................................................................................................................. 3-4
3.6
Mounting the SK-4224 ............................................................................................................................. 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
Initiating Circuit Installation .................................................................................................................... 4-3
4.3.1 Contact Wiring .................................................................................................................................. 4-3
4.3.2 Two-Wire Smoke Detector Wiring ................................................................................................... 4-3
4.3.3 Class A Smoke Detector Installation ................................................................................................ 4-4
4.3.4 Four-Wire Smoke Detector ............................................................................................................... 4-5
4.3.5 Notification Appliance Circuit Installation ....................................................................................... 4-6
4.3.6 Class A Notification Appliance Circuit Installation ......................................................................... 4-7
4.4
Alarm and Trouble Relays ....................................................................................................................... 4-7
4.5
Auxiliary Power Circuit ........................................................................................................................... 4-7
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