Silent Knight SK-2 Conventional 2-Zone Fire Alarm Panel

Silent Knight SK-2 Conventional 2-Zone Fire Alarm Panel
Item# SI_SK2

Product Description

Two Class B initiating device circuits.

One Class B notification appliance circuit.

Synchronization for System Sensor®, Gentex® and Wheelock® devices.

Silent or audible walk test operation.

Disable switches provided per zone.

Form C alarm and trouble relays. Description: The two zone SK-2 is a 24 VDC FACP that provides two Class B initiating device circuits and one Class B notification appliance circuit (NAC). The SK-2 NAC protocol includes the ability to silence audible devices while strobes continue to flash, using only a single pair of wires. The SK-2 is also compatible with conventional input devices such as two- and four-wire smoke detectors, pull stations, waterflow devices, tamper switches and other normally-open contact devices. Activation of a compatible smoke detector or any normally-open fire alarm initiating device activates audible and visual signaling devices, illuminates an indicating LED, sounds the piezo sounder at the FACP, activates the FACP alarm relay, and operates an optional module used to notify a remote station or initiate an auxiliary control function. The SK-2 is compatible with System Sensor® I3 detectors providing advanced features such as drift compensation, maintenance alert, and freeze warning. Automatic synchronization of audio/visual devices is provided, using three selections for manufacturer protocol.

Features: • Two Style B (Class B) initiating device circuits (IDCs)

• One Style Y (Class B) notification appliance circuit (NAC)

• Support for synchronization of standard ANSI audible signals and ADA compliant strobes per NFPA 72

• Selectable for System Sensor, Wheelock, and Gentex protocols

• Selective silence feature allows manual silence of horns while strobes continue to flash on the same NAC

• Silent or audible walk test operation mode

• Alarm verification selectable per zone

• Program each zone for supervisory or fire with separate red and yellow LEDs

• Disable switches provided per zone

• Program NACS for – Silence inhibit – Auto silence – Strobe synchronization – Temporal or steady signal – Silenceable or nonsilenceable – Disable

• Form C alarm and trouble relays

• 3A total usable current

• Optional dress panel (PN SK-DP2/4).

Electrical Specifications: SK-2 Primary AC: 120 VAC @ 50/60 Hz, 2.3A. Wiring: 14 AWG (2.0 mm2) with 600 V insulation min. Initiating Device Circuits (IDCs) Operating Voltage: 22 VDC nominal; power-limited. Standby Current: 4 mA. Alarm Current: 15 mA min. Short-circuit Current: 40 mA max. Loop Resistance: 100 max. EOL Resistor: 4.7K , 1/2 watt. NACs 2.5A @ 24 VDC with standard transformer, power-limited Signaling Current: 2.5A max with standard transformer EOL Resistor: 4.7K , 1/2 watt Form C Relays Types: Trouble and alarm Contact Ratings: 2A @ 30 VAC, resistive Auxiliary Output Resettable Operating Voltage: 24 VDC nominal Current: 500 mA max, power-limited