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The Central Cabinet is constructed for desk mounting Page.8 or wall mounting Page. 9.
The central cabinet of one unit, containing:
1. Working lamp 2. Two or Six detector groups - 1 accommodation and 1 engine room
or 2 accommodation of 2 engine rooms with belonging indication for fire and fault.
3. Internal acoustic sounder 4. Relay for control of fire bell, fire and fault relay
with each a set of potential free change over switches. 5. Function test respectively of fire and for fault in the
two detector groups. B. M O D E O F O P E R A T I O N
The central cabinet is in normal state: The central cabinet is connected to primary and secondary power supply with 24 V DC rated voltage. All lamps are dark, except for the green working lamp mark "Mains". At voltage drop-out from either primary or secondary power supply the following is indicated:
A. Green pilot lamp labelled "Mains" flashes B. Internal acoustic signal C. Faulty relay changes over
You can reset by the push button labelled "Reset". Then: A. The internal acoustic signal stops B. Fault relay change back to normal condition
The green pilot lamp does not stop flashing until both primary and secondary voltage is connected to the central cabinet and you have reset by the push-button labelled "Reset".
Mode of operation of the detector groups:
The detector groups are working after the one-loop-principle where the detectors are parallel connected to the line and the line is finished with an end resistor. The end resistor determines the current of rest in the loop. If the fault has stopped the light in the yellow lamp mark "Fault" of the group in question stops, if the fault is stationary, nothing happens.
The yellow fault lamp of the group in question will not stop lighting until the fault has been repaired and the button mark "Reset" has been pushed.
Fire Alarm: Fire Alarm occurs when a detector has been released. At release of a detector a resistance is connected parallel on the line (parallel with the end resistor) then the current (no-signal current) will increase.
Fire Alarm is indicated by:
A. Internal acoustic signal B. External acoustic signal C. Fire relay changes over D. Light in the red fire lamp of the group in question
You can reset by pushing the button mark "Reset", then: A. The internal acoustic signal stops B. The external acoustic signal stops C. Fire relay changes back to normal condition D. If the detector is in normal state, light in the red fire
lamp of the group in question stops lighting - if the Detector is in alarm state, nothing happens.
The red fire lamp of the group in question will stop lighting until the detector is in normal state and the button mark "Reset" has been pushed.
If the central cabinet looses it is working voltage, the green working lamp mark "Mains" goes out.
C. F U N C T I O N T E S T
Test of fire is achieved by pushing the button placed below the red fire lamp.
Indication as mentioned in the passage about fire alarm.
Test of fault in the detector loop is achieved by pushing the button placed below the yellow fault lamp.
Normal state. A fixed current of rest passes through the loop. Both the fault and fire alarm lamps are dark.
Fault Alarm If a loop is broken the current of rest ceases and the group in question will indicate "Fault".
Fault is indicated by
A. Internal acoustic signal B. Fault relay changes over C. Light in the yellow lamp mark "Fault" of the group in
question
You can see reset by pushing the button mark "Reset", then: A. The internal acoustic signal stops B. Fault relay changes back to normal condition
Indication as mentioned in the passage about fault alarm.
Test to fire alarm bells are achieved at the same time as test of fire is done. Test of power supply fault: Is obtained by switching-off of primary and secondary power supply of by removing primary of secondary fuse in central cabinet.
D. RESET OF DETECTOR WITH ELECTRICAL MEMORY Detectors with electrical memory and which are connected with the central cabinet can be reseted by pushing the function test button "Fault" of the group in question, then te detector loop is broken and the connected detectors are reseted.
E. D A T A E1. Voltage
The operating voltage is 2x 24 V DC +30% -25 % E2. Current consumption
Normal state, detectors not incl. app. 100 mA Alarm state, detector and bells not incl. app. 250 mA Detector, normal state app. 0,1 mA Detector, alarm state app. 40 mA
E3. Limits
Max. load of fire bell output 2,0 A Max. number of detectors per group 25 pcs Max. number of man call points unlimited
F. D E T E C T O R L I S T Engine room
Opt. Smoke detector Type 130A + 143 AS Type SLR-EM+ YBM-R4M+ MBB-1
Heat detector Type 215A + 143 AS
Type DCD-1EM+ YBM-R4M+ MBB-1 60°C Type DCD-1REM+ YBM-R4M+ MBB-1 90°C Manual call point Type NS-CPWP WR 4072 UV-Flame Detector Type 810A + 133 AS
Type 1121+1411+1421 NS DUV Accommodation
Opt. Smoke detector Type 130A + 143 A Surface Type 130A + 143 UH Flushm. Type SLR-EM+ YBM-R4M.
Heat detector Type 215 A + 143 A Surface Type 215 A + 143 UH Flushm. DCD-1EM+ YBM-R4M 60°C DCD-1REM+ YBM-R4M 90°C
Manual call point Type NS-CP WR 2072
G. I N S T A L L A T I O N I N S T R U C T I O N
Installation instruction for automatic fire alarm and fire indication system, type 815.5-6 (2) GL.
1. The central is mounted on the navigation bridge as the screw
for the 2 upper holes in the cabinet are screwed in the bulk- head until approx. 3 mm from the bulkhead surface.
The cabinet is "pulled" down over the screws and kept to the bulkhead by means of internal mounted plate springs.
Further the cabinet is fastened with a third screw at the bottom in the middle.
2. The detector group/s is/are connected with the central
cabinet; remember the end resistance at the last detector in each group; and so are fire bells and voltage supply 24 V.
The central cabinet is put back into normal state.
3. The system is ready for tests, which are to be done according
to the check list, see this.
Type Approval Certificate
Company DECKMA GmbH
D-21224 Rosengarten-Klecken
Bahnhofstraße 79
Product Description Fire Detection System
Type 815.5
Environmental Category C, EMC1
Test Standard Guidelines for the Performance of Type Approvals, Edition 2003