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� � � • '• <br /> SILENT SK-4 � SK-4E Fire Alarm <br /> KNIGHT Control Panel <br /> �, <br /> by Honeywell 4-zone fire protection at a price <br /> that won't burn your budget. <br /> The SK-4 and SK-4E (SK-4/E) are four zone conventional fire alarm control panels (FACPs) that bring the latest <br /> in microprocessor technology to conventional fire controls. The SK-4 is a 120 VAC FACP and the SK-4E is a <br /> 240 VAC FACP. These FACPs provide reliable fire signaling protection for small-to medium-sized commercial, <br /> industrial, and institutional buildings. <br /> For more information about the SK-4/E system, or to locate your nearest source, please call <br /> 1-800-328-0103. <br /> Description • Selectable for S stem Sensor, <br /> Y ` .. <br /> Wheelock, and Gentex protocols ���i�l��l � <br /> The four zone SK-4/E is a 24 VDC �I I ' I <br /> FACP that provides four Class B • Selective silence feature allows <br /> initiating device circuits and two Class manual silence of horns while strobes <br /> B notification appliance circuit(NAC). continue to flash on the same NAC <br /> • Program for combination tamper <br /> The SK-4/E NAC protocol includes the supervisory monitor and waterflow <br /> ability to silence audible devices while alarm on one zone <br /> strobes continue to flash, using only a . Silent or audible walk test operation <br /> single pair of wires.The SK-4/E is also mode <br /> compatible with conventional input • Alarm verification selectable per zone <br /> devices such as two-and four-wire <br /> smoke detectors, pull stations, • Program each zone for supervisory or <br /> waterflow devices,tamper switches and LEDsth separate red and yellow <br /> other normally-open contact devices. . Disable switches provided per zone � <br /> Activation of a compatible smoke • Program NACS for <br /> detector or any normaiiy-open fire —Silence inhibit <br /> alarm initiating device activates audible _Auto silence SK-4 <br /> and visual signaling devices, illuminates _Strobe synchronization <br /> an indicating LED, sounds the piezo _Temporal or steady signal NACs <br /> sounder at the FACP, activates the Signaling Current: 2.5A @ 24 VDC <br /> FACP alarm relay, and operates an —Silenceable or nonsilenceable with standard transformer or 5A <br /> optional module used to notify a remote —Disable total (2.5A per NAC)with additional <br /> station or initiate an auxiliar control • Form C alarm, trouble, and optional transformer, power-limited <br /> y supervisory relays EOL Resistor:4.7K I, 1/2 watt <br /> function. Form C Relays <br /> The SK-4/E is compatible with System ' 3A total usable current Types:Trouble, alarm, and <br /> Sensor�13 detectors providing • 6A total usable current with optional supervisory <br /> advanced features such as drift second transformer(PN SK-TRM24 Contact Ratings: 2A @ 30 VAC, <br /> or SK-TRM24E) resistive <br /> compensation, maintenance alert, and , Optional dress panel (PN SK-DP2/4) Auxiliary Output <br /> freeze warning.Automatic Resettable and non-resettable <br /> synchronization of audio/visual devices Electrical Specifications Operating Voltage: 24 VDC nominal <br /> is provided, using three selections for SK-4 Primary AC: 120 VAC @ 50/60 Current: 500 mA max, power-limited; <br /> manufacturer protocol. Hz, 2.3A total current for nonresettable power, <br /> Features SK-4E Primary AC: 240 VAC @ 50 Hz, resettable�ow�K;anzl two NACs must <br /> 1.15A not exceed� O�reqt�iresatiditi��l <br /> • Four Style B (Class 6) initiating Wirin 14 AWG 2.0 mmz with 600 V <br /> device circuits IDCs g' � � transforme�;)� ; � ; <br /> � � insulation min � ��� � � ; � <br /> • Two Style Y(Class B)notification Initiating Device Circuits (IDCs) �' ���$ f i J f <br /> appliance circuit(NAC) Operating Voltage: 22 VDC nominal; ��/ <br /> • Optional module converts all IDCs poWer-limited �"r��i ��,�; �.,,, � <br /> and NACs to Class A PN SK-CAC4 Standby Current:4 mA � , . ' �-��':��d <br /> � ) �•G_il,a�� `�;, ,'s,s;�,,r <br /> • Support for synchronization of Alarm Current: 15 mA min <br /> standard ANSI audible signals and Short-circuit Current: 40 mA max <br /> ADA compliant strobes per NFPA 72 Loop Resistance: 1001 max <br /> EOL Resistor: 4.7K S2, 1/2 watt <br /> .�,� ' <br /> .��_ <br />