Manual Essayons Smoke Detector 10-22-01 version.docx

Cerberus Smoke Detector System October 2001 Page 2 of 15

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Essayons Cerberus Smoke Detector System Table of Contents

System Overview Sanderson Safety Supply Co.

1101 S.E. 3 rd Avenue Portland, OR 97214 Ph #: (503) 238-5700 )The new system is based on Cerberus Pyrotronics System 3 modular technology. Cerberus is a Division of Siemens Building Technologies, Inc. Installation was during the lay up of 2000/2001 by Sanderson Safety Supply Co. and Cascade General Shipyard. A Siemens Technical Representative was also involved to insure proper installation. Sanderson should be considered the preferred source for spare parts, although other dealers carry Cerberus System 3 equipment. Jim Hitchcock was the lead man from Sanderson, and the contact person at Sanderson is Eric Axtell.

Siemens Building Technologies, Inc.

8 Fernwood Road Florham Park, NJ 07932 )The original piping used for sampling each space, the relay box, AC disconnects and the twin suction/blower with the Kidde System remains. Most of the original wiring from after steering to other spaces remains as well.

The major components comprising the new system include:

One 24 Module Enclosure, shock mounted, referred to as the Detection Cabinet which is located in After Steering.

One RR-35 Remote Reset Device located in the Detection Cabinet.

One BC-35 Battery Charger/Transfer Module, located in the Detection Cabinet.

One PS-35 Power Supply located in the Detection Cabinet.

Ten ZU-35TS Input Modules located in the Detection Cabinet.

One CP-35 Control Panel located in the Detection Cabinet.

Nineteen Air Duct Housings mounted on a plate in after steering.

Nineteen Model AD-11P Air Duct Detectors mounted in the Air Duct Housings.

Two NP7-12 Yuasa 12V 18AH batteries for backup.

Three SR-35 Supplementary Relay Modules located in the Detection Cabinet.

Three SR-35 Supplementary Relay Modules located in the Detector Relay Box.

One Cerberus Power Transfer Relay Assembly.

Two Square D disconnects for AC power, located in After Steering.

One Air Flow Inspection/Collector Chamber.

One Kirkland Annunciator located on the Bridge.

One Kirkland Annunciator located in the Card Room.

One Pressure Differential switch, Fairchild Part No PSF 100A, located in the Detection Cabinet.

System Operation Sampling Sampling is accomplished via the Twin Suction Blower, which pulls a vacuum on the inlet side. The outlet is to a gooseneck on the Poop Deck as well as a sampling tube routed to the Bridge. The Air Flow Inspection/Collector Chamber is connected directly to the vacuum side. Inlets are located at each of the 19 supervised zones. From the zone the piping is routed to the associated Air Duct Housing for that zone, through the AD-11P Air Duct Detector and then to the Air Flow Inspection/Collector Chamber. The Air Duct Detector performs the actual task of looking for smoke.

Each Duct Detector is wired in parallel with an End Of Line (EOL) capacitor, which is simply a 50MFD capacitor, and connected to one of the two zones available on each ZU-35TS Input Module. The capacitor provides a path for the 73mV supervisory signal.

Alarms There are two types of alarms. One is a generic Trouble alarm and the other is a specific Zone alarm.

System Trouble Alarms.

System Trouble Alarms can be monitored at the Detection Cabinet, Card Room and Bridge. They are initiated by numerous conditions that are listed under Alarm Conditions. They are meant to draw attention to the fact that some part of the system has malfunctioned. Action should be taken to determine the cause of the Trouble alarm as it could indicate that the system is incapable of detecting smoke. A standing Trouble alarm does not necessarily disable the ability of the system to detect smoke.

Indication At the Detection Cabinet Control Panel they are indicated by the yellow Trouble LED being lit and a built-in buzzer. On the Bridge and in the Card Room they appear on the Kirkland Annunciator as System Trouble.

Silence/Reset A Trouble Alarm can only be reset after the problem that caused it has been resolved.

System Trouble Alarms can be silenced by pressing Silence at the Kirkland Annunciator on the Bridge or Trouble Silence at the Detection Cabinet Control Panel.

There is no Silence in the Card Room.

System Trouble alarms can be reset on the Bridge at the Kirkland Annunciator or at the Detection Cabinet Control Panel.

Zone Alarms Zone Alarms can be monitored at the Detection Cabinet, FFS, Card Room, Bridge and CCS. Zone alarms are initiated by the ZU-35TS modules when it’s associated AD-11P Air Duct Detector detects smoke.

Indication A Zone alarm is indicated by a red Alarm LED at the Detection Cabinet along with a buzzer. The appropriate ZU-35TS will also have a red LED Alarm lit.

On the Bridge there will be a simultaneous alarm on the appropriate zone of the Kirkland Annunciator and a generic (summary) alarm at the Main Bridge Console Fire Fighting Summary Alarm panel.

At the Card Room there is an appropriate zone indication, as there is also in CCS, and the FFS.

Silence/Reset Zone alarms can only be reset after the AD-11P Air Duct Detector Smoke Alarm contacts open (there is no more smoke).

The Fire Fighting Summary Alarm on the Bridge can be silenced by pressing ‘Acknowledge’ on the Bridge or in the FFS. Either location accomplishes the same thing. The Silence button on the Kirkland Annunciator silences the bell on the after bulkhead of the Bridge.

Locally at CCS they can be silenced with the Acknowledge button located next to the Smoke Alarm Annunciator on the Auxiliary Console.

There is no Silence at the Card Room.

After silencing, if another zone detects smoke then the audio alarms will come on again.

Reset can be accomplished from the Bridge via the Reset on the Kirkland Annunciator or by the Reset at the Detection Cabinet in After Steering. If that is successful then the FFS Summary Alarm at the Fire Fighting section of the Main Bridge Console can be Reset.

Supervision Duct Detectors. Each detector runs a self test every 7 seconds. A green LED mounted on the detector pulses when this test is passed. If the test fails the LED will pulse yellow and a Trouble Alarm will be issued. It accomplishes this by breaking the supervisory circuit while leaving the smoke alarm circuit intact.

Duct Detector Wiring. The System 3 ZU-35TS uses a 73mV, 120 Hz saw tooth wave as supervisory for the connected detectors. In the event of a broken conductor, Duct Detector failure or bad connection the ZU-35TS will detect a loss of current (normally ≈9mA) through the circuit and respond with a Trouble Alarm.

Annunciators. None of these circuits are supervised. Each Annunciator position requires a 24VDC input which is applied by the normal (de-energized) open contact of the SR-35 Supplementary Relay Modules located in the Detection Cabinet. Therefore, a coil/circuit failure that results in a loss of action of that relay will not be detectable except by testing the circuit.

Tug Monitor. Not supervised. The relays that provide a dry contact for the Tug Monitor FFS are wired to the normal (de-energized) closed contacts of the SR-35 Supplementary Relay Modules located in the Relay Cabinet, so no supervision is provided in this circuit and a coil/circuit failure can only be identified by testing.

Audible Alarm Devices. There are two audible alarms driven by the CP-35; one on the Bridge (starboard aft bulkhead inboard of door) and one just aft and port of CCS (against the forward bulkhead of the elevator shaft). They are supervised by 24VDC at ≈5mA. (Full wave rectified with no smoothing.) However, both of these alarm devices are connected in parallel so that they both have to fail before there will be notification. Comment by Marv Bowman:

Verify this.

Normal Operation Under normal operation the system is continuously monitoring the 19 zones for smoke as well as performing various self-tests.

Most of the devices are designed in a ‘fail-safe’ manner so that in the event of a failure of a component or a bad circuit, then a System Trouble alarm will be generated thus bringing attention to the problem. However, there are certain failures that can occur that will not be detectable. For this reason the manufacturer recommends that the system be electrically tested at least once a month and Coast Guard regulations require a yearly functional test using actual smoke.

Testing The system should be tested each month for proper alarm operation and once a year by using a smoke test. Also once a year the system should be forced to operate on the battery for at least an hour to insure that the batteries are in good condition.

The monthly test takes 5 personnel to accomplish properly. There should be one person at each of the following locations:

After Steering. Test initiator, coordinator. Verifies lamps, buzzer operation, correct zone alarms, proper reset, Trouble alarms.

CCS. Verifies appropriate zone alarms and Tugmonitor indications. Also verifies that the audio alarm (siren) outside CCS operates.

Card Room. Verifies appropriate zone alarm operation, and System Trouble Alarm.

Bridge. Verifies appropriate zone alarms on Kirkland Annunciator, along with audio alarm operation and that Main Bridge Console Fire Fighting Summary is working.

FFS. Verifies appropriate zone alarms and reset operation.

The monthly test ordinarily consists of:

All stations verify that there is no alarm condition and that the lamps are working in CCS the FFS and at the Detection Cabinet. In the Detection Cabinet press the Reset/Lamp Test momentary contact rocker switch to verify that the lamps are working okay. All the LED lamps on the CP-35 Control Panel and on the 10 ZU-35TS Input Modules should light.

Perform the ZU-35TS Module tests by operating the slide switches located above the labels on each ZU-35TS in the ALARM direction. Note that there are two zones on each ZU-35TS and zone 1 (the left slide switch) is the LOWER zone. Test each Alarm function by momentarily moving the slide switch to the Alarm position and returning it. The alarm should lock in with an appropriate audio and visual indication at each station. Verify that each station has received the proper zone alarm and that all audio alarms are working. Bridge Resets the alarm, CCS can Acknowledge. When all zones have been tested operate the Reset/Lamp Test rocker switch to insure all alarms are reset.

Perform the ZU-35TS Module Trouble tests by operating the slide switches located above the labels on each ZU-35TS in the TRBL direction. Note that the left switch is for the LOWER zone lamp, and the right is for the UPPER one. The alarm should lock in with the yellow LED at the appropriate ZU-35TS and the yellow Trouble LED on the CP-35 Control Panel. The buzzer built into the CP-35 should also sound. Verify System Trouble alarms at the Bridge and Card Room. Bridge should get a buzzer also. Verify Reset from the Bridge. When all zones have been tested operate the Reset/Lamp Test rocker switch to insure all alarms are reset.

Test the local Air Flow Trouble Alarm by placing the Twin Blower/Suction select switch in the off position. The blowers should turn off and the Air Flow Trouble Alarm should sound within 30 seconds. Verify the CP-35 Trouble indications and System Trouble indications at the Bridge and the Card Room. Return the selector switch to the preferred blower. Operate the Reset/Lamp Test rocker switch to insure all alarms are reset.

Verify flopover of the Power Transfer Relay by opening the Normal AC Power Disconnect The Power Transfer Relay should switch to the Emergency source.

Verify operation of the BC-35 Loss of AC Trouble Alarm by opening the Emergency AC Power Disconnect. The CP-35 yellow Trouble Alarm LED should light and the buzzer should sound. Verify System Trouble Alarms at the Bridge and the Card Room. Bridge should also get an audio buzzer. Verify Silence at the Bridge.

Return to normal by closing the Emergency AC Power Disconnect, then the Normal AC Power Disconnect, verifying operation of the Power Transfer Relay back to normal. Operate the Reset/Lamp Test rocker switch to insure all alarms are reset.

Alarm Conditions System Trouble Alarm Conditions Air Flow Loss of suction from Twin Suction/Blower. This comprises a differential pressure switch with one end attached to the inlet of the Suction/Blower cabinet and the other end open to atmosphere. The normal open contact is connected to ZU-35TS #10 in series with a 50MFD 50VDC electrolytic capacitor. Upon a pressure differential the contacts close and the supervisory circuit is made up. The cap acts to limit current for the supervisory circuit and to make it impossible for that ‘zone’ to issue a Smoke Alarm. When there is a loss of vacuum the switch opens and the ZU-35TS issues a System Trouble Alarm. This alarm can be verified by the yellow LED being lit on the ‘Air Flow Trouble’ labeled ZU-35TS.

PE-11 Air Duct Detector Removal of an Air Duct Detector will cause a System Trouble Alarm. Also, the Air Duct Detector circuitry will issue this alarm if it is fails it’s self-test. It’s status LED will flash yellow if this happens. Reasons for this can be an internal circuitry failure, need for cleaning (although a dirty LED in the sampling chamber will more often cause a false Smoke Alarm) or malfunction due to environmental conditions. Verify this problem by checking the ZU-35TS units for a yellow LED and checking it’s associated Air Duct Detector’s LED.

Air Duct Circuit Any interruption of the this circuit (as with the removal of an Air Duct Detector) will cause a System Trouble Alarm, as will an open EOL capacitor.

ZU-35TS Input Module Removal of (having it’s harness plug disconnected) any of the ZU-35TS units will cause a System Trouble Alarm.

BC-35 Battery Charger/Transfer Module Failure of the charging system will cause a System Trouble Alarm, as will an interruption of the charging circuit (removing or disconnecting a battery or a blown fuse). Also, a System Trouble Alarm will be initiated for high or low battery voltage conditions or transfer to the batteries from the normal 24VDC source.

PS-35 Power Supply Loss of output from this unit will result in a transfer to battery power by the BC-35, and thus cause a System Trouble Alarm. Verify this by checking the AC input (there is an AC circuit breaker built into the unit) and the DC output, which is fused with a 15A fuse.

CP-35 Control Module If a ground occurs anywhere within the system, along with the yellow Ground LED there will be a System Trouble Alarm. Also, if the Trouble Silence rocker switch is in the silence position and there is no trouble present, then the System Trouble Alarm will sound.

Zone Alarm Conditions

1. Smoke Alarms The 19 monitored spaces are each tied via a PE-11 Duct Detector to one of two zones available on each ZU-35TS Module. The PE-11 will close the activation circuit of the ZU-35TS when it detects the presence of smoke (or, more rarely, if the light emitting element of the sampling chamber becomes dirty). The output on the ZU-35TS then goes high, which is connected to the input of one of the relays on the SR-35 Supplemental Relay Module. The SR-35 relay contacts change state to notify Annunciators and to provide the Tugmonitor with a Smoke Alarm input. One of the ZU-35TS zones (adjacent to zone 19) is used for the Air Flow Trouble Alarm and should never issue a Smoke Alarm, unless it’s series capacitor shorts out.

System Diagram Simplified Flow Diagram of the Cerberus System and interconnections.

Card Room A n nunciator Bridge Annunciator After Steering

CCS

Fire Fighting Station

(ACS)

Junction Box Relay Cab i net Smoke Detection Cabinet Duct Dete c tors

List of Zones The following table lists all the zones and their location. In addition one of the ZU-35TS zones is used for the Air Flow Trouble alarm, but is configured so that it can only generate a System Trouble Alarm.

Equipment Data Sheets The following documents cover the various major System 3 components that are installed in the Smoke Detector System. Note that the use of the Class A or Class B wiring styles. All the components on the Essayons are wired using the Class B style, which does not have a return loop for supervisory, but instead uses a supervisory current that passes though an EOL device (capacitor or resistor) that is located at the farthest downstream point in the supervised circuit.

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