SilentKnight SK-4 User Manual

MODELS

SK-2/E & SK-4/E

Fire Alarm Control Panels

Instruction Manual

Document 52604		B
9/14/2010	Rev:

P/N 52604:B

ECN 09-722

Fire Alarm System Limitations

While a fire alarm system may lower insurance rates, it is not a substitute for fire insurance!

An automatic fire alarm system—typically made up of smoke detectors, heat detectors, manual pull stations, audible warning devices, and a fire alarm control panel with remote notification capability—can provide early warning of a developing fire. Such a system, however, does not assure protection against property damage or loss of life resulting from a fire.

The Manufacturer recommends that smoke and/or heat detectors be located throughout a protected premise following the recommendations of the National Fire Protection Association Standard 72 (NFPA 72), manufacturer's recommendations, State and local codes, and the recommendations contained in the Guides for Proper Use of System Smoke Detectors, which are made available at no charge to all installing dealers. These documents can be found at http://www.systemsensor.com/html/applicat.html. A study by the Federal Emergency Management Agency (an agency of the United States government) indicated that smoke detectors may not go off in as many as 35% of all fires. While fire alarm systems are designed to provide early warning against fire, they do not guarantee warning or protection against fire. A fire alarm system may not provide timely or adequate warning, or simply may not function, for a variety of reasons:

Smoke detectors may not sense fire where smoke cannot reach the detectors such as in chimneys, in or behind walls, on roofs, or on the other side of closed doors. Smoke detectors also may not sense a fire on another level or floor of a building. A second-floor detector, for example, may not sense a firstfloor or basement fire.

Particles of combustion or “smoke” from a developing fire may not reach the sensing chambers of smoke detectors because:

•Barriers such as closed or partially closed doors, walls, or chimneys may inhibit particle or smoke flow.

•Smoke particles may become “cold,” stratify, and not reach the ceiling or upper walls where detectors are located.

•Smoke particles may be blown away from detectors by air outlets.

•Smoke particles may be drawn into air returns before reaching the detector.

The amount of “smoke” present may be insufficient to alarm smoke detectors. Smoke detectors are designed to alarm at various levels of smoke density. If such density levels are not created by a developing fire at the location of detectors, the detectors will not go into alarm.

Smoke detectors, even when working properly, have sensing limitations. Detectors that have photoelectronic sensing chambers tend to detect smoldering fires better than flaming fires, which have little visible smoke. Detectors that have ion- izing-type sensing chambers tend to detect fast-flaming fires better than smoldering fires. Because fires develop in different ways and are often unpredictable in their growth, neither type of detector is necessarily best and a given type of detector may not provide adequate warning of a fire.

Smoke detectors cannot be expected to provide adequate warning of fires caused by arson, children playing with matches (especially in bedrooms), smoking in bed, and violent explosions (caused by escaping gas, improper storage of flammable materials, etc.).

Heat detectors do not sense particles of combustion and alarm only when heat on their sensors increases at a predetermined rate or reaches a predetermined level. Rate-of-rise heat detectors may be subject to reduced sensitivity over time. For this reason, the rate-of-rise feature of each detector should be tested at least once per year by a qualified fire protection specialist. Heat detectors are designed to protect property, not life.

IMPORTANT! Smoke detectors must be installed in the same room as the control panel and in rooms used by the system for the connection of alarm transmission wiring, communications, signaling, and/or power. If detectors are not so located, a developing fire may damage the alarm system, crippling its ability to report a fire.

Audible warning devices such as bells may not alert people if these devices are located on the other side of closed or partly open doors or are located on another floor of a building. Any warning device may fail to alert people with a disability or those who have recently consumed drugs, alcohol or medication. Please note that:

•Strobes can, under certain circumstances, cause seizures in people with conditions such as epilepsy.

•Studies have shown that certain people, even when they hear a fire alarm signal, do not respond or comprehend the meaning of the signal. It is the property owner's responsibility to conduct fire drills and other training exercise to make people aware of fire alarm signals and instruct them on the proper reaction to alarm signals.

•In rare instances, the sounding of a warning device can cause temporary or permanent hearing loss.

A fire alarm system will not operate without any electrical power. If AC power fails, the system will operate from standby batteries only for a specified time and only if the batteries have been properly maintained and replaced regularly.

Equipment used in the system may not be technically compatible with the control panel. It is essential to use only equipment listed for service with your control panel.

Telephone lines needed to transmit alarm signals from a premise to a central monitoring station may be out of service or temporarily disabled. For added protection against telephone line failure, backup radio transmission systems are recommended.

The most common cause of fire alarm malfunction is inadequate maintenance. To keep the entire fire alarm system in excellent working order, ongoing maintenance is required per the manufacturer's recommendations, and UL and NFPA standards. At a minimum, the requirements of NFPA 72 shall be followed. Environments with large amounts of dust, dirt or high air velocity require more frequent maintenance. A maintenance agreement should be arranged through the local manufacturer's representative. Maintenance should be scheduled monthly or as required by National and/or local fire codes and should be performed by authorized professional fire alarm installers only. Adequate written records of all inspections should be kept.

Limit-C1-2-2007

2	SK-2 & SK-4 Series Manual — P/N 52604:B 9/14/2010

Installation Precautions

Adherence to the following will aid in problem-free installation with long-term reliability:

WARNING - Several different sources of power can be connected to the fire alarm control panel. Disconnect all sources of power before servicing. Control unit and associated equipment may be damaged by removing and/or inserting cards, modules, or interconnecting cables while the unit is energized. Do not attempt to install, service, or operate this unit until manuals are read and understood.

CAUTION - System Re-acceptance Test after Software Changes: To ensure proper system operation, this product must be tested in accordance with NFPA 72 after any programming operation or change in site-specific software. Reacceptance testing is required after any change, addition or deletion of system components, or after any modification, repair or adjustment to system hardware or wiring. All components, circuits, system operations, or software functions known to be affected by a change must be 100% tested. In addition, to ensure that other operations are not inadvertently affected, at least 10% of initiating devices that are not directly affected by the change, up to a maximum of 50 devices, must also be tested and proper system operation verified.

This system meets NFPA requirements for operation at 0-49º C/32-120º F and at a relative humidity 93% ± 2% RH (noncondensing) at 32°C ± 2°C (90°F ± 3°F). However, the useful life of the system's standby batteries and the electronic components may be adversely affected by extreme temperature ranges and humidity. Therefore, it is recommended that this system and its peripherals be installed in an environment with a normal room temperature of 15-27º C/60-80º F.

Verify that wire sizes are adequate for all initiating and indicating device loops. Most devices cannot tolerate more than a 10% I.R. drop from the specified device voltage.

Like all solid state electronic devices, this system may operate erratically or can be damaged when subjected to lightning induced transients. Although no system is completely immune from lightning transients and interference, proper grounding will reduce susceptibility. Overhead or outside aerial wiring is not recommended, due to an increased susceptibility to nearby lightning strikes. Consult with the Technical Services Department if any problems are anticipated or encountered.

Disconnect AC power and batteries prior to removing or inserting circuit boards. Failure to do so can damage circuits.

Remove all electronic assemblies prior to any drilling, filing, reaming, or punching of the enclosure. When possible, make all cable entries from the sides or rear. Before making modifications, verify that they will not interfere with battery, transformer, or printed circuit board location.

Do not tighten screw terminals more than 9 in-lbs. Overtightening may damage threads, resulting in reduced terminal contact pressure and difficulty with screw terminal removal.

This system contains static-sensitive components.

Always ground yourself with a proper wrist strap before handling any circuits so that static charges are removed from the body. Use static suppressive packaging to protect electronic assemblies removed from the unit.

Follow the instructions in the installation, operating, and programming manuals. These instructions must be followed to avoid damage to the control panel and associated equipment. FACP operation and reliability depend upon proper installation.

Precau-D1-9-2005

FCC Warning

	WARNING: This equipment generates, uses, and can	Canadian Requirements
	radiate radio frequency energy and if not installed and	This digital apparatus does not exceed the Class A limits
	used in accordance with the instruction manual may
		for radiation noise emissions from digital apparatus set
	cause interference to radio communications. It has been
		out in the Radio Interference Regulations of the Cana-
	tested and found to comply with the limits for class A
		dian Department of Communications.
	computing devices pursuant to Subpart B of Part 15 of
		Le present appareil numerique n'emet pas de bruits radi-
	FCC Rules, which is designed to provide reasonable
	protection against such interference when devices are	oelectriques depassant les limites applicables aux appa-
	operated in a commercial environment. Operation of this	reils numeriques de la classe A prescrites dans le
	equipment in a residential area is likely to cause interfer-	Reglement sur le brouillage radioelectrique edicte par le
	ence, in which case the user will be required to correct	ministere des Communications du Canada.
	the interference at his or her own expense.

Silent Knight® is a registered trademark of Honeywell International Inc. Echelon® is a registered trademark and LonWorks™ is a trademark of Echelon Corporation. ARCNET® is a registered trademark of Datapoint Corporation. Microsoft® and Windows® are registered trademarks of the Microsoft Corporation.

©2010 by Honeywell International Inc. All rights reserved. Unauthorized use of this document is strictly prohibited.

SK-2 & SK-4 Series Manual — P/N 52604:B 9/14/2010

3

Software Downloads

In order to supply the latest features and functionality in fire alarm and life safety technology to our customers, we make frequent upgrades to the embedded software in our products. To ensure that you are installing and programming the latest features, we strongly recommend that you download the most current version of software for each product prior to commissioning any system. Contact Technical Support with any questions about software and the appropriate version for a specific application.

Documentation Feedback

Your feedback helps us keep our documentation up-to-date and accurate. If you have any comments or suggestions about our online Help or printed manuals, you can email us.

Please include the following information:

•Product name and version number (if applicable) •Printed manual or online Help

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Send email messages to:

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Please note this email address is for documentation feedback only. If you have any technical issues, please contact Technical Services.

4	SK-2 & SK-4 Series Manual — P/N 52604:B 9/14/2010

Table of Contents
Section 1: Product Description .............................................................................................	10
1.1: Product Features ..........................................................................................................................................	10
1.2: Specifications...............................................................................................................................................	11
1.3: Controls and Indicators................................................................................................................................	12
1.4: Circuits.........................................................................................................................................................	14
1.5: Components .................................................................................................................................................	14
1.6: Optional Modules and Accessories .............................................................................................................	14
Section 2: Installation.............................................................................................................	17
2.1: Backbox Mounting ......................................................................................................................................	17
2.2: Operating Power ..........................................................................................................................................	19
2.3: Input Circuits ...............................................................................................................................................	20
2.4: Output Circuits.............................................................................................................................................	22
2.4.1: Notification Appliance Circuits.........................................................................................................	22
2.4.2: Special Application DC Power Output Connections.........................................................................	23
2.4.3: Relays ................................................................................................................................................	23
2.5: Power-limited Wiring Requirements ...........................................................................................................	24
2.6: Installation of Optional Modules .................................................................................................................	25
2.6.1: CAC-4 Class A Converter Module (SK-4 only) ...............................................................................	25
Installation ............................................................................................................................................	25
Wiring NACs and IDCs for Class A ....................................................................................................	25
2.6.2: 4XTMF, 4XLMF and 4XZMF Option Modules...............................................................................	26
4XTMF Transmitter Module Installation.............................................................................................	27
4XZMF Zone Relay Module (SK-4 only)............................................................................................	29
4XLMF LED Interface Module (SK-4 only) .......................................................................................	30
Section 3: Program Options via DIP Switch.........................................................................	32
3.1: DIP Switch Settings.....................................................................................................................................	33
3.1.1: SW1 DIP Switch Settings..................................................................................................................	35
Silence Inhibit.......................................................................................................................................	35
Auto-silence..........................................................................................................................................	35
Temporal Coding..................................................................................................................................	35
Selective Silence...................................................................................................................................	35
Trouble Reminder.................................................................................................................................	35
AC Trouble Delay ................................................................................................................................	35
Autoresettable Supervisory ..................................................................................................................	35
IDC Combination Circuit .....................................................................................................................	36
3.1.2: SW2 DIP Switch Settings..................................................................................................................	36
IDC1 Verification (SK-4 only)............................................................................................................	36
IDC1 Supervisory (SK-4 only).............................................................................................................	36
IDC1 Verification for SK-2 or IDC2 Verification for SK-4 ................................................................	36
IDC1 Supervisory for SK-2 or IDC2 Supervisory for SK-4 ................................................................	37
IDC2 Verification for SK-2 or IDC3 Verification for SK-4 ................................................................	37
IDC2 Supervisory for SK-2 or IDC3 Supervisory for SK-4 ................................................................	37
IDC4 Verification (SK-4 only).............................................................................................................	37
IDC4 Supervisory (SK-4 only).............................................................................................................	37
3.1.3: SW3 DIP Switch Settings..................................................................................................................	37
NAC1 Nonsilenceable ..........................................................................................................................	37
NAC1 Disable ......................................................................................................................................	37
NAC2 Nonsilenceable (SK-4 only)......................................................................................................	37
NAC2 Disable (SK-4 only) ..................................................................................................................	38
Strobe Synchronization ........................................................................................................................	38
Nonsilenceable Waterflow for Combination Circuit............................................................................	38
Spares ...................................................................................................................................................	38

SK-2 & SK-4 Series Manual — P/N 52604:B 9/14/2010

5

Table of Contents
Section 4: Operating Instructions .........................................................................................	40
4.1: Switch Functions in Normal Mode ..............................................................................................................	40
4.1.1: ACK - Acknowledge .........................................................................................................................	40
4.1.2: Silence................................................................................................................................................	40
4.1.3: Zone Enable/Disable..........................................................................................................................	40
4.1.4: Reset/(Lamp Test) .............................................................................................................................	40
4.1.5: Walktest .............................................................................................................................................	41
4.2: Walktest........................................................................................................................................................	41
4.3: Status LEDs..................................................................................................................................................	42
4.4: Operation......................................................................................................................................................	43
4.4.1: Fire Alarm Response .........................................................................................................................	44
4.4.2: Fire Alarm Restoral ...........................................................................................................................	44
4.4.3: System Supervisory Condition Response..........................................................................................	44
4.4.4: System Supervisory Restoral Response.............................................................................................	44
4.4.5: Trouble Condition Response .............................................................................................................	44
4.4.6: Trouble Condition Restoral ...............................................................................................................	45
Section 5: Power Supply Calculations .................................................................................	46
5.1: Overview......................................................................................................................................................	46
5.2: Calculating the AC Branch Circuit ..............................................................................................................	46
5.3: Calculating the System Current Draw .........................................................................................................	47
5.3.1: Overview............................................................................................................................................	47
5.3.2: How to Use Table 5.3 on page 48 to Calculate System Current Draw .............................................	47
5.4: Calculating the Battery Size.........................................................................................................................	48
5.4.1: NFPA Battery Requirements .............................................................................................................	49
5.4.2: Selecting and Locating Batteries .......................................................................................................	49
Appendix A: NFPA Standard-Specific Requirements .........................................................	50
A.1: Central Station/Remote Station Transmitter: Connection to FACP Dry Contacts......................................	50
Index ........................................................................................................................................	51

6	SK-2 & SK-4 Series Manual — P/N 52604:B 9/14/2010

It is imperative that the installer understand the requirements of the Authority Having Jurisdiction (AHJ) and be familiar with the standards set forth by the following regulatory agencies:

•Underwriters Laboratories Standards

•NFPA 72 National Fire Alarm Code

Before proceeding, the installer should be familiar with the following documents.

NFPA Standards

This Fire Alarm Control Panel complies with the following NFPA Standards:

NFPA 72 National Fire Alarm Code for Local Fire Alarm Systems and Remote Station Fire Alarm Systems (requires an optional Remote Station Output Module)

Underwriters Laboratories Documents for Reference:

UL 38 Manually Actuated Signaling Boxes

UL 217 Smoke Detectors, Single and Multiple Station

UL 228 Door Closers–Holders for Fire Protective Signaling Systems UL 268 Smoke Detectors for Fire Protective Signaling Systems

UL 268A Smoke Detectors for Duct Applications

UL 346 Waterflow Indicators for Fire Protective Signaling Systems UL 464 Audible Signaling Appliances

UL 521 Heat Detectors for Fire Protective Signaling Systems

UL 864 Standard for Control Units for Fire Protective Signaling Systems UL 1481 Power Supplies for Fire Protective Signaling Systems

UL 1638 Visual Signaling Appliances

UL 1971 Signaling Devices for Hearing Impaired

Other:

NEC Article 250 Grounding NEC Article 300 Wiring Methods

NEC Article 760 Fire Protective Signaling Systems Applicable Local and State Building Codes

Requirements of the Local Authority Having Jurisdiction (LAHJ)

Silent Knight Documents

Silent Knight Device Compatibility DocumentDocument #52612

411 Digital Alarm Communicator/TransmitterDocument #50921

411UD Digital Alarm Communicator/TransmitterDocument #50759

This product has been certified to comply with the requirements in the Standard for Control Units and Accessories for Fire Alarm Systems, UL 864, 9th Edition. Operation of this product with products not tested for UL 864, 9th Edition has not been evaluated. Such operation requires the approval of the local Authority Having Jurisdiction (AHJ).

SK-2 & SK-4 Series Manual — P/N 52604:B 9/14/2010

7

Two Zone Main Circuit Board

IDC (4.7 K , ½ watt ELR)

(supervised, power-limited)

Zone 2 B-

Zone 2 B+

Zone 1 B-

Zone 1 B+

NAC (4.7KW, ½ watt ELR) 2.5A max.

(supervised, power-limited)

B-

B+

24 VDC Special Application

Resettable Power

500 mA max. (nonsupervised, power-limited)

- 24 VDC

+ 24 VDC

Trouble Relay (fail-safe) 2 amps @ 30 VAC (nonsupervised)

Common

Trouble (Normally Open) Normal (Normally Closed)

Alarm Relay

2 amps @ 30 VAC (nonsupervised)

Common Normally Closed Normally Open

JP3 - Cut to disable Ground Fault detection (only with approval of AHJ)

J3 and J5

4XTMF Option

Module

Connectors

120 VAC, 2.3A or

220/240 VAC, 1.15A

J7 Transformer

Earth

Connector

Neutral

Hot

(supervised,

nonpower-limited)

J8 Battery Connector

(supervised, nonpower-limited)

18 Amp Hour max.

ms2bord.wmf

SW1, SW2 and SW3

Programming DIP Switches

Note: Factory-installed cover removed for illustration purposes only!

Module Placement Supervision (if installed) JP1 - cut to supervise module on J3 & J5

Charger Fault LED

Battery Fault LED

Earth Fault LED

8	SK-2 & SK-4 Series Manual — P/N 52604:B 9/14/2010

4 Zone Main Circuit Board

IDC (4.7 K , ½ watt ELR) TB3 (supervised, power-limited)

Zone 4 B-

Zone 4 B+

Trouble Relay TB5 (fail-safe)

Zone 3 B-

2A @ 30 VAC (nonsupervised)

Zone 3 B+

Common

NAC (4.7K , ½ watt ELR)

Zone 2 B-

Trouble (Normally Open)

Zone 2 B+

Normal (Normally Closed)

TB2 2.5A max. per NAC

Zone 1 B-

(supervised, power-limited)

Zone 1 B+

NAC 2 B-

Alarm Relay TB6

NAC 2 B+

2A @ 30 VAC

NAC 1 B-

(nonsupervised)

NAC 1 B+

Common

24 VDC Special Application

Normally Closed

Power TB1

Normally Open

500 mA per circuit

Supv. Relay TB7

(nonsupervised, power-

limited)

2A @ 30 VAC

- Reset

(nonsupervised)

+ Reset

Common

- Nonreset

Normally Closed

+Nonreset

Normally Open

TB1

+

-

+

-

TB2

B+ B-

B+

B-

TB3

B+

B-

B+

B-

B+

B-

B+

B-

C TRBL NORM

C

NC

NOTB6 C

NC NO TB7

TB5

Nonreset

Reset

NAC 1

NAC 2

ZONE 1 ZONE 2

ZONE 3 ZONE 4

TROUBLE

ALARM

SUPV

CLASS A

JP3

CONVERTER

Class A

J1

JP3 - Cut to disable

Converter Module

Ground Fault

J3

detection (only with

ZONE 1

approval of AHJ)

FIRE ALARM

SUPERVISORY

TROUBLE

MAINTENANCE

J5

ZONE 2

FIRE ALARM

SUPERVISORY

TROUBLE

MAINTENANCE

J3 and J5

ZONE 3

Option Module

FIRE ALARM

SUPERVISORY

TROUBLE

MAINTENANCE

Connectors

			ZONE 4
FIRE ALARM		SUPERVISORY		TROUBLE		MAINTENANCE
AC	NAC	ZONE	NAC	SYSTEM	POWER	WALK	ALARM
POWER	DISABLE	DISABLE	FAULT	TROUBLE	TROUBLE TEST		SILENCE

2 TRANSFORMER

J9

1 TRANSFORMER

J7

J7 Transformer

Connector

J9 Transformer

(optional)

120 VAC, 2.3A or 220/240 VAC, 1.15A

Hot Neutral Earth

(supervised, nonpower-limited)

ACK	ALARM	RESET	WALK
	SILENCE	ZONE	TEST
1	ENABLE/DISABLE		4
	2	3				J4	J4 and J6
			JP2	JP1		J6	Option Module
TB8							Connectors
			SW187654321 ON	SW287654321 ON	SW387654321 ON		ms4bord.wmf
HOT NEUT EARTH		BATTERY
		EARTH BATT CHG
		J8

J8 Battery

Connector

(supervised, nonpower-limited)

18 Amp Hour max.

SW1, SW2 and SW3

Programming DIP Switches

Note: Factory-installed cover removed for illustration purposes only!!

Module Placement Supervision (if installed) JP1 - cut to supervise module on J3 & J5 JP2 - cut to supervise module on J4 and J6

Charger Fault LED

Battery Fault LED

Earth Fault LED

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Section 1: Product Description

The SK-2 is a two zone FACP (Fire Alarm Control Panel) and the SK-4 is a four zone FACP. The information in this manual refers to both the SK-2 and SK-4 unless otherwise specified. These control panels provide reliable fire signaling protection for small to medium sized commercial, industrial and institutional buildings. The FACP is compatible with System Sensor’s i3 detectors which are microprocessor-based conventional smoke detectors that can transmit a maintenance trouble signal to the FACP indicating the need for cleaning and a supervisory ‘freeze’ signal when the ambient temperature falls below the detector rating (refer to System Sensor’s i3 Installation and Maintenance Instructions document I56-1800-00 for device specifications). In addition, the control panel is compatible with conventional input devices such as two-wire smoke detectors, four-wire smoke detectors, pull stations, waterflow devices, tamper switches and other normally-open contact devices. Refer to the Silent Knight Device Compatibility Document for a complete listing of compatible devices.

Outputs include one NAC (Notification Appliance Circuit) on the SK-2 and two NACs on the SK- 4. Each FACP has a Form-C Alarm and Trouble relay and 24 VDC special application resettable power. In addition, the SK-4 has a Form-C Supervisory relay and a nonresettable special application power output. The FACP supervises wiring, AC voltage and battery level.

Activation of a compatible smoke detector or any normally-open fire alarm initiating device will activate audible and visual signaling devices, illuminate an indicating LED, sound the piezo sounder at the FACP, activate the FACP alarm relay and operate an optional module used to notify a remote station or initiate a auxiliary control function. The SK-2E and SK-4E offer the same features as the SK-2 and SK-4 but allows connection to 220/240 VAC.

NOTE: Unless otherwise specified, the terms SK-2 and SK-4 are used in this manual to refer to the SK-2 and SK-2E as well as the SK-4 and SK-4E FACPs respectively.

1.1Product Features

•Style B (Class B) IDC (Initiating Device Circuit)

one zone programmable for combination supervisory and waterflow

SK-2 - two IDCsSK-4 - four IDCs

•Style Y (Class B) NAC (Notification Appliance Circuit)

SK-2- one NACSK-4 - two NACs

• Form-C Alarm Relay

•Form-C Trouble Relay

•Form-C Supervisory Relay (SK-4 only)

•3.0 amps total system current standard for SK-2 and SK-4

•6.0 amps total system current available for SK-4 with optional second transformer

•Dress Panel DP-MS2/4

•Optional Trim Ring P/N: TR-1-R for semi-flush mounting the cabinet

•Control Buttons

ACK (Acknowledge)

Alarm Silence

Reset

Walktest

10	SK-2 & SK-4 Series Manual — P/N 52604:B 9/14/2010

Specifications	Product Description

Zone Enable/Disable (one per zone)

•LED Indicators

Fire Alarm (one per zone)

Supervisory (one per zone)

Trouble (one per zone)

Maintenance (one per zone)

AC Power

NAC Disable

Zone Disable

NAC Fault

System Trouble

Power Trouble

Walktest

Alarm Silence

Earth Fault LED (on circuit board) lights if zero impedance between FACP and ground exist

Battery Fault (on circuit board)

Charger Fault (on circuit board)

•Piezo sounder for alarm, trouble and supervisory

•24 volt operation

•Low AC voltage sense

•Alarm Verification

•NACs Programmable for:

Silence Inhibit

Auto-Silence

Strobe Synchronization

Selective Silence (horn-strobe mute)

Temporal or Steady Signal

Silenceable or Nonsilenceable

•Automatic battery trickle charger

•Silent or audible walktest capabilities

•Optional NAC Class A converter module (SK-4 only)

•Optional 4XTMF Transmitter Module (SK-2 and SK-4)

•Optional 4XZMF Zone Relay Module (SK-4 only)

•Optional 4XLMF Module for RZA-4XF Remote LED Annunciator (SK-4 only)

1.2Specifications

AC Power - TB8

SK-2/SK-4: 120 VAC, 50/60 Hz, 2.3 amps SK-2E/SK-4E: 240 VAC, 50 Hz, 1.15 amps

Wire size: minimum #14 AWG (2.0 mm2) with 600V insulation

Battery (sealed lead acid only) - J8

Maximum Charging Circuit - Normal Flat Charge: 27.6 VDC @ 0.8 amp

Maximum Charger Capacity: 18 Amp Hour battery (two 7 Amp Hour batteries can be housed in the FACP cabinet. Larger batteries require a separate battery box such as the BB-17F.)

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11

Product Description	Controls and Indicators

Initiating Device Circuits - TB3

Alarm Zones 1 & 2 (SK-2 and SK-4) Alarm Zones 3 & 4 (SK-4 only) Power-limited circuitry

Operation: All zones Style B (Class B)

Normal Operating Voltage: Nominal 20 VDC, Maximum 27 VDC Alarm Current: 15 mA minimum

Short Circuit Current: 40 mA maximum Maximum Loop Resistance: 100 ohms

End-of-Line Resistor: 4.7K , 1/2 watt (Part #71252) Standby Current: 4 mA

Refer to the Silent Knight Device Compatibility Document for listed compatible devices

Notification Appliance Circuit(s) - TB21

One NAC on SK-2, two NACs on SK-4 Operation: Style Y (Class B) Power-limited Circuitry

Normal Operating Voltage: Nominal 24 VDC, Maximum 27 VDC

Maximum Signaling Current: 2.5 amps total with standard transformer. 5.0 amps total (2.5 amp maximum per NAC) with optional transformer on SK-4 only

Maximum Line Impedance: 1.5 volt drop end-of-line End-of-Line Resistor: 4.7K , 1/2 watt (Part #71252)

Refer to the Silent Knight Device Compatibility Document for compatible listed devices

Form-C Relays

Trouble Relay TB5 (fail-safe) Alarm Relay TB6

Supervisory Relay TB7 (SK-4 only)

Relay Contact Ratings: 2 amps @ 30 VAC (resistive)

Resettable Special Application Power - TB1

Operating Voltage: Nominal 24 VDC

Maximum Available Current: 500 mA - appropriate for powering 4-wire smoke detectors (see Footnote 1.)

Power-limited Circuitry

Refer to the Silent Knight Device Compatibility Document for compatible listed devices

Nonresettable Special Application Power - TB1 (SK-4 only)

Operating Voltage: Nominal 24 VDC

Maximum Available Current: 500 mA (see footnote 1 on page 12.) Power-limited Circuitry

Refer to the Silent Knight Device Compatibility Document for compatible listed devices

1.3 Controls and Indicators

Front Panel Membrane Buttons

•Acknowledge

•Alarm Silence

•Reset

1. Total current for resettable power and one Notification Appliance Circuit must not exceed 3.0 amps for the SK-2. Total current for nonresettable power, resettable power and two Notification Appliance Circuits must not exceed 6.0 amps for the SK-4 (requires optional second transformer).

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Controls and Indicators	Product Description

•Walktest

•Zone Enable/Disable - Zone 1

•Zone Enable/Disable - Zone 2

•Zone Enable/Disable - Zone 3 (SK-4 only)

•Zone Enable/Disable - Zone 4 (SK-4 only)

LED Indicators

•Fire Alarm Zone 1 - red LED

•Fire Alarm Zone 2 - red LED

•Fire Alarm Zone 3 - red LED (SK-4 only)

•Fire Alarm Zone 4 - red LED (SK-4 only)

•Supervisory Zone 1 - yellow LED

•Supervisory Zone 2 - yellow LED

•Supervisory Zone 3 - yellow LED (SK-4 only)

•Supervisory Zone 4 - yellow LED (SK-4 only)

•Trouble Zone 1 - yellow LED

•Trouble Zone 2 - yellow LED

•Trouble Zone 3 - yellow LED (SK-4 only)

•Trouble Zone 4 - yellow LED (SK-4 only)

•Maintenance Zone 1 - yellow LED

•Maintenance Zone 2 - yellow LED

•Maintenance Zone 3 - yellow LED (SK-4 only)

•Maintenance Zone 4 - yellow LED (SK-4 only)

•AC Power - green LED

•NAC Disable - yellow LED

•Zone Disable - yellow LED

•NAC Fault - yellow LED

•System Trouble - yellow LED

•Power Trouble - yellow LED

•Walktest - yellow LED

•Alarm Silence - yellow LED

•Earth Fault - yellow LED (on main circuit board) lights if zero impedance between FACP and ground exists

•Battery Fault - yellow LED (on main circuit board)

•Charger Fault - yellow LED (on main circuit board)

Local Piezo Sounder

A piezo sounder provides separate and distinct sounds for alarm, trouble, maintenance and supervisory conditions as follows:

•Alarm - on steady

•Trouble - pulse 1 second on and 1 second off

•Maintenance - pulse ½ second on and ½ second off

•Supervisory - pulse ½ second on and ½ second off

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Product Description	Circuits

1.4 Circuits

Input Circuits

Two input IDCs (Initiating Device Circuits) on the SK-2 and four IDCs on the SK-4 provide Style B (Class B) configurations. All IDCs accept i3 detectors as well as conventional two-wire smoke detectors, four-wire smoke detectors and normally-open contact devices.

Output Circuits

•24 VDC resettable special application power output - 500 mA

•24 VDC nonresettable special application power output (SK-4 only) - 500 mA

•24 volt battery charger (up to 18 Amp Hour batteries)

Notification Appliance Circuits

One NAC (Notification Appliance Circuit) Style Y (Class B) on the SK-2

Two NACs Style Y (Class B) on the SK-4

Relays

Alarm Relay

Trouble Relay (fail-safe)

Supervisory Relay (SK-4 only)

Form-C contacts rated 2.0 amps @ 30 VAC (resistive)

1.5 Components

Main Circuit Board

The main circuit board contains the system’s CPU, power supply, other primary components and wiring interface connectors. Optional modules plug in and are mounted to the main circuit board.

Cabinet

The backbox measures 14.5” (36.8 cm) x 15.218” (38.65 cm) x 2.875” (7.3 cm) and provides space for two batteries (up to 7 Amp Hours). Also included is a dress panel which mounts inside the cabinet.

Transformer Assembly

One 100VA transformer is provided standard with the FACP. An optional second 100VA transformer is available for the SK-4 to provide maximum accessory power.

Batteries

The cabinet provides space for two 7 Amp Hour batteries (larger batteries up to 18 Amp Hour, require use of a UL listed battery box such as the BB-17F). Batteries must be ordered separately.

1.6 Optional Modules and Accessories

CAC-4 Class A Converter Module (SK-4 only)

The CAC-4 Module can be used to convert the Style B (Class B) Initiating Device Circuits to Style D (Class A) and Style Y (Class B) Notification Appliance Circuits to Style Z (Class A). The module connects to J1 on the SK-4 main circuit board.

4XTMF Transmitter Module (SK-2 and SK-4)

The 4XTMF provides a supervised output for local energy municipal box transmitter and alarm and trouble reverse polarity. It includes a disable switch and disable trouble LED. A module jumper option allows the reverse polarity circuit to open with a system trouble condition if no alarm

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Optional Modules and Accessories	Product Description

condition exists. The 4XTMF mounts to the SK-2 main circuit board option module connectors J3

&J5 or the SK-4 main circuit board, occupying one of the two sets of option module connectors J3

&J5 or J4 & J6.

4XLMF LED Interface Module (SK-4 only)

The LED Interface Module supports the RZA-4XF Remote Annunciator module. Annunciator wiring is supervised for open conditions by this module. The 4XLMF mounts to the SK-4 main circuit board option module connectors J3 and J5 only.

RZA-4XF Remote Annunciator (SK-4 only)

The Remote Annunciator mounts on a standard single-gang electrical box and provides LED indication of the following:

•Alarm Zone 1 (red LED)

•Alarm Zone 2 (red LED)

•Alarm Zone 3 (red LED)

•Alarm Zone 4 (red LED)

•System Trouble (yellow LED)

A Local Trouble Sounder and Silence Switch are also provided. All LED wiring is supervised for open conditions. Any open condition will cause the System Trouble LED to illuminate. Slide-in paper labels permit an easy change of zone information.

NOTE: The RZA-4XF Remote Annunciator requires the use of the LED Interface Module (4XLMF).

4XZMF Zone Relay Module (SK-4 only)

The Zone Relay Module provides Form-C relay contacts for the following:

•Alarm Zone 1

•Alarm Zone 2

•Alarm Zone 3

•Alarm Zone 4

•System Alarm

•System Trouble

As a jumper option, the first four relays described above can be made silenceable. The 4XZMF mounts to the SK-4 main circuit board, occupying one of the two sets of option module connectors.

Dress Panel DP-MS2/4

A dress panel DP-MS2/4 is optional. The dress panel restricts access to the system wiring while allowing access to the membrane switch panel.

Battery Box

The BB-17F battery box may be used to house two batteries greater than 7 Amp Hour to a maximum of 18 Amp Hour. The battery box mounts directly below the control panel cabinet, centered to the main circuit board. The BB-17F is red and is provided with knockouts.

411 and 411UD Digital Alarm Communicator/Transmitter

The three input/channel 411 and the four input/channel 411UD are dual line, digital alarm communicator/transmitters which can be used as slave communicators with the SK-4 FACP. The inputs/channels are compatible with normally open relay contacts, require ELRs (End-of-Line Resistors), are supervised and are fully programmable. The communicators interface with the public switched telephone network and are compatible with most central station receivers. Power supplied must be 12 or 24 volts, filtered and nonresettable. The communicators are mounted in a small metal enclosure, providing a variety of mounting options. Refer to the 411 or 411UD manual for additional information.

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Notes

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Section 2: Installation

The cabinet can be surface mounted or semi-flush mounted using the optional Trim Ring P/N: TR- 1-R. The door is removable during the installation period by opening and lifting if off the hinges. The cabinet mounts using two key slots at the top of the backbox and two additional 0.250” diameter holes located at the bottom.

Carefully unpack the system and check for shipping damage. Select a location for the cabinet that is in a clean, dry, vibration-free area where extreme temperatures are not encountered. The area should be readily accessible with sufficient room to easily install and maintain the control panel. Locate the top of the cabinet approximately five feet above the floor with the hinge mounting on the left.

Determine the number of conductors required for the devices to be installed and determine the appropriate knockouts. All wiring must be in accordance with the National and/or Local codes for fire alarm systems and power supplies.

2.1Backbox Mounting

1.Mark and predrill holes for the top two keyhole mounting bolts

2.Install two upper fasteners in the wall with the screw heads protruding approximately Ľ”

3.Using the upper keyholes, mount the backbox over the two screws

4.Mark the lower two holes, remove the backbox from the wall and drill the mounting holes

5.Mount the backbox, install the remaining fasteners and tighten all screws

		Top
2.875” (7.3 cm)
		Depth = 3.000”
	Backbox = 14.5”	(7.62 cm)
	(36.8 cm)
0.75”(1.9 cm)
		2.7”
	9.1” (23.1 cm)	(6.86cm)
10.375”
(26.35 cm)
Height=15.000”	Pem Studs
(38.10 cm)
	Backbox Mounting Holes	4cab.wmf-ms2
Bottom		1.125” (2.868 cm)

Figure 2.1 Backbox Mounting Dimensions

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