DCSAP Operation and Maintenance Manual
Contents
1. Remove the factory jumper between the terminal block pins amp Gnd Install a shielded 2 wire cable from terminal block Io to the PLC 4 20 ma input Install the second cable wire from the PLC 4 20ma input to DCSAP terminal block Gnd The 2 wire shielded cable must have the shield drain connected to a ground point at either end of the cable Page 10 Copyright 2013 by Cool Air Incorporated All rights reserved Digital Central Supervisory Alarm Panel DCSAP APPLYING POWER amp PANEL SET UP WARNING RISK OF ELECTRIC SHOCK DO NOT REMOVE COVER NO USER SERVICEABLE PARTS INSIDE REFER TO QUALIFIED SERVICE PERSONNEL AVIS RISQUE DE CHOC ELECTRIQUE NE PAS ENLEVER LE COUVERCLE AUCUN ENTRETIEN DE PIECES INTERIEURES PAR L USAGER CONFIER L ENTRETIEN AU PERSONNEL QUALIFIE Apply power to the panel by plugging the supplied power cord into a 115 VAC power source Programming the Range Selection There are six PPM ammonia concentration ranges available in the DCSAP which correspond to the six ranges available from the Cool Air LBW 420 420 1 ammonia leak detector s If the DCSAP and LBW 420 420 1 s are purchased as a system from Cool Air Incorporated both will be set to the appropriate range for the application and range selection will not be required in the field unless the LBW 420 420 1 range is changed If the DCSAP and ammonia leak detector s are purchased separately it is necessary to confirm2. 7 E Label FRONT PANEL CONTROLS amp INDICATORS Front Panel Display The front panel display is comprised of two digital displays a series of labeled indicating LEDs and several toggle switches The large seven segment four digit display indicates ammonia concentration for Cool Air model LBW 420 ammonia leak detectors for other detectors with 4 20 mA signals the display shows a value proportional to the 4 20 mA signal The smaller two digit display indicates the unit number detector selected for display on the large display Ammonia concentration is displayed in parts per million P The LEDs provide an indication of power ammonia concentration Early Warning and Alarm status at a glance Switches in the upper portion of the panel are provided for Lamp Test Early Warning Common Alarm Normal Silent acknowledgement and Page 13 Copyright 2013 by Cool Air Incorporated rights reserved Digital Central Supervisory Alarm Panel DCSAP Increment and Decrement switches for selecting a unit number or programming the unit number range selection see pages 20 21 Each unit number or room zone depends on how you label the panel has an Early Warning and Alarm LED for indication of alarming status and a Normal Silent switch for acknowledging and silencing an Alarm Four Digit Main Display The large four digit seven segment display on the front panel shows the value of the
3. Teach button The available ranges and equivalent scale factors are shown in the following table Range Scale Factor PPM mA IE3 1000 62 5 800 50 500 31 25 400 25 250 15 67 100 6 25 OFF N A LBW 50 and LBW RLV Ammonia leak detectors do not have a 4 20 mA signal so the Range should be set to OFF for these and any other detectors that do not have a 4 20 mA signal The Warning and Alarm indications will work normally The large four digit display will not display a PPM value Note that if any other range is selected for detectors that do not have a 4 20 mA signal the large four digit display will indicate Err1 for these channels When connecting an ammonia leak detector not manufactured by Cool Air Incorporated the scale factor must match one of the available ranges If not It is necessary to select the OFF mode for the channel In the OFF mode the Warning and Alarm indications will work normally The large four digit display will not display a PPM value Page 12 Copyright 2013 by Cool Air Incorporated All rights reserved Digital Central Supervisory Alarm Panel DCSAP DESCRIPTION Front Panel Display Lamp Test Power LED switch ES Unit Number Digital Display Early Warning amp Common Alarm Decrement Normal Silent switches switch Early Mont Warning amp Number Alarm LEDs Normal Silent Alarm Unit Number switches
4. Common relay for Early Warning and common relay for Alarm each with normally open N O normally closed N C dry contacts to send a signal to a fire or security monitoring system safety yellow NEMA4X UL listed enclosure Page 5 Copyright 2013 by Cool Air Incorporated All rights reserved Digital Central Supervisory Alarm Panel DCSAP AVAILABLE OPTIONS In addition to the standard features the Digital Central Supervisory Alarm Panel can be equipped with these options e Fieldbus connection to communicate status and ammonia concentration levels 4 20 mA level to connected building monitoring equipment Models are available to support the following field buses o Modbus RTU o ControlNet o Ethernet IP Contact Cool Air Incorporated technical support for more information or purchasing any of these options Page 6 Copyright 2013 by Cool Air Incorporated All rights reserved Digital Central Supervisory Alarm Panel DCSAP INSTALLATION AND SETUP Caution Do not apply power to the panel until instructed to do so The DCSAP enclosure comes standard with built in mounting feet Make sure the panel is securely fastened to a solid surface Also allow room around the panel for conduit runs The panel should be mounted in a location where it is protected from the extremes of heat and cold and protected from extreme radio frequency and or electro magnetic radiation Avoid locating the panel where it might be
5. 50 F to 125 F Operating humidity 5 to 95 RH non condensing Power Requirements 100 to 240 VAC 47 to 63 Hz 1 2 A Max at 115 VAC 0 6 A Max at 230 VAC 40 A Max Inrush at 115 V cold start 80 A Max Inrush at 230 V cold start Dimensions 8 16 24 or 32 zone models 14 12 W x 6 D Weight net not shipping DCSAP 8 11 165 DCSAP 16 11 5 Ibs DCSAP 24 12 lbs DCSAP 32 12 5 Ibs Enclosure NEMA 4 rated UL listed Options Optional Fieldbus connection Page 30 Copyright 2013 by Cool Air Incorporated All rights reserved COOL AIR T INCORPORATED QUALITY AMMONIA LEAK DETECTION SYSTEMS amp EQUIPMENT 1544 134 Ave NE Ham Lake MN 55304 USA Phone 763 205 0844 Fax 763 432 9295 E mail info coolairinc com Website coolairinc com
6. PIECES INTERIEURES PAR L USAGER CONFIER L ENTRETIEN AU PERSONNEL QUALIFIE Page 16 Copyright 2013 by Cool Air Incorporated All rights reserved Digital Central Supervisory Alarm Panel DCSAP Front Panel Mounted Circuit Boards The front panel mounted circuit boards consist of a control display board and one or more combination switch amp light boards The control display board has two seven segment LED displays and four toggle switches It also provides the mounting and interface to the optional field bus interface module which mounts as a daughter board on the left end of the rear side of the control display board Field bus modules are specific to the selected bus and also require specific support firmware in the control panel The first combination switch amp light board plugs into the bottom of the control display board Up to four switch amp light boards can be plugged together to support 8 16 24 or 32 ammonia leak detectors depending on the model that was purchased Control Display Circuit Board The Control Display Circuit Board is where the logics for the DCSAP reside The board not only provides the various control functions for the panel but also provides two digital displays for the unit number concentration of ammonia in PPM and any error codes When the panel enclosure access door is opened the control display circuit board is located at the top of the access door The control display circuit boa
7. Remove outer PVC insulation 2 back from end of cable 3 Unwrap each signal pair foil shield 1 from cable end and discard 4 Remove the shield drain wire from the black white and black green pair of wires 5 Dress up the stripped back cable end with shrink tube or electrical tape to prevent any cable shorting to adjacent terminal block signals 6 Strip back each wire 7 Install the wires into each terminal block using the table below Page 9 Copyright 2013 by Cool Air Incorporated All rights reserved Digital Central Supervisory Alarm Panel DCSAP At LBW 420 end n Remove outer PVC insulation 2 back from end of cable Unwrap each signal pair foil shield 1 from cable end Remove all drain wires Dress up the stripped back cable end with shrink tube or electrical tape to prevent any cable shorting to adjacent terminal block signals Strip back each wire Install wires into screw terminal blocks as shown below Wire pair Color DCSAP LBW 420 Terminal block Terminal block pin Black red Red Vo TB 2 Black red Black Ii TB 2 Black White White Wnc Pre alarm Relay NC Black White Black Com 2 wires Pre alarm Relay C Black Green Green Anc Alarm NC Black Green Black Com 2 wires Alarm Shield wire Bare Gnd Not connected NOTE If an external PLC is to share a 4 20 ma circuit with the DCSAP 1
8. damaged during washdown The panel operates without modification and or adjustment on a specified range of supply voltages and frequencies Refer to the specifications section for specific values and or contact the Cool Air Incorporated technical support Following installation the DCSAP associated wiring and ammonia leak detectors should be thoroughly tested to assure proper operation Samples of ammonia should be introduced to each connected ammonia leak detector and proper operation of the warning and alarm contacts of the ammonia leak detector and related unit number of the DCSAP should be confirmed If the ammonia leak detector is equipped with a 4 20 mA output connected to the DCSAP appropriate indications of signal level should be confirmed at the ammonia leak detector and DCSAP and both digital indicators if so equipped Page 7 Copyright 2013 by Cool Air Incorporated All rights reserved Digital Central Supervisory Alarm Panel DCSAP Example Application This Diagram shows an example DCSAP application Terminal Blocks Control Board Field Bus Module Ammonia Leak Detector 1 Ammonia Leak Detector n Alarm and Warning System PLC Building Mgmt Computer or other Fieldbus Terminal Copyright 2013 by Cool Air Incorporated rights reserved Digital Central Supervisory Alarm Panel DCSAP Wiring between the DCSAP and the ammonia leak detectors requires at least 5 conductors with a
9. hold the Lamp Test Switch and confirm that all lamps light as intended Note that all six digits on the two digital displays should indicate 8 eight with all decimal points on the four digit display also lit If any lamp does not light when the Lamp Test Switch is operated the panel should be returned to Cool Air Inc for service Lamps on the Display board will not respond to the Lamp Test Switch while an Early Warning or Alarm is active Note The small two digit display does not have decimal points Early Warning Common Alarm Normal Silent Switch The Early Warning Common Alarm Normal Silent switch is used when the Early Warning normal close dry contact from any ammonia leak detector that is wired into the panel changes state from normal close to open To silence the panel alarm horn move the switch to the right to the silent position When the Early Warning condition is corrected and the ammonia leak detector returns back to the normal operation the panel alarm horn will sound again until the Early Warning Common Alarm Normal Silent switch is returned to the left or normal position Increment amp Decrement switches The Increment and Decrement momentary toggle switches are used to select the unit number ammonia leak detector to be displayed on the large digital display The selected unit number is shown on the smaller two digit display Momentarily pushing the Increment switch will increase the unit number by one w
10. COOL AIR INCORPORATED PPM READING gt j d 7 gt E 3 Sa E m 2 5m gt m m 3 5 H v gt LJ m a gt Digital Central Supervisory Alarm Panel REV 2014 2 Digital Central Supervisory Alarm Panel DCSAP TABLE OF CONTENTS IMPORTANT READ THIS FIRST 4 CAUTIONS ie 4 STANDARD FEATURES 1 eere nennen entente 5 AVAILABLE OPTIONS 1 6 INSTALLATION AND 5 7 EXAMPLE APPLICATION 000ccsscsssssessssesssssessesesessessesessssssseseseseseeenees 8 APPLYING POWER amp PANEL SET UP 11 APPLY POWER TO THE PANEL BY PLUGGING THE SUPPLIED POWER CORD INTO A 115 VAC POWER SOURCE eese eene nennen nennen nnne 11 PROGRAMMING THE RANGE SELECTION cce 11 DESCRIPTION sissivsssssscsssssccassssssssscesscesssetens csssssiesssessevadeees sosdectsovesecssdesosesss 13 FRONT PANEL DISPLAY 0 cccccccscssssssscccccvecssssssccccecscevsscscsssceeeesees 13 Early Warning Common Alarm Normal Silent Switch 15 Increment amp Decrement switches 15 Ammonia Leak Detector I
11. COVER NO USER SERVICEABLE PARTS INSIDE REFER TO QUALIFIED SERVICE PERSONNEL AVIS RISQUE DE CHOC ELECTRIQUE NE PAS ENLEVER LE COUVERCLE AUCUN ENTRETIEN DE PIECES INTERIEURES PAR L USAGER CONFIER L ENTRETIEN AU PERSONNEL QUALIFIE Page 19 Copyright 2013 by Cool Air Incorporated All rights reserved Digital Central Supervisory Alarm Panel DCSAP Enclosure Mounted Circuit Board Terminal blocks for connecting Ammonia leak detectors Power LEDs Each Terminal Board contains eight terminal blocks one for each of eight connected ammonia leak detectors Please refer to appendix C for detailed information on the terminal blocks and techniques for making connections Each Terminal Board has a green LED that is lit to indicate that power is applied to the board Terminal block channels are numbered from left to right and from top to bottom The first row of terminal blocks is numbered from 1 to 8 the second row from 9 to 16 etc Page 20 Copyright O 2013 by Cool Air Incorporated rights reserved Digital Central Supervisory Alarm Panel DCSAP Checking the Firmware Version To display the firmware version first open the door press the Teach button on upper left corner of the Display board see illustration on page 11 The range value OFF r100 1250 r400 r500 r800 r1000 will be displayed on the large four digit display While holding the Teach button switch the Lamp Test switch The firmware ver
12. ING THE DIGITAL CENTRAL SUPERVISORY ALARM PANEL CAUTIONS WARNING RISK OF ELECTRIC SHOCK DO NOT REMOVE COVER NO USER SERVICEABLE PARTS INSIDE REFER TO QUALIFIED SERVICE PERSONNEL AVIS RISQUE DE CHOC ELECTRIQUE NE PAS ENLEVER LE COUVERCLE AUCUN ENTRETIEN DE PIECES INTERIEURES PAR L USAGER CONFIER L ENTRETIEN AU PERSONNEL QUALIFIE After previewing the section labeled INSTALLATION amp SET UP on page 8 of this manual apply power and test the panel to make sure it is operating correctly DO NOT store this manual in the panel enclosure as this might result in damage to components from excessive heat If you would like this manual in a pdf format please download it from our website www coolairinc com Page 4 Copyright 2013 by Cool Air Incorporated All rights reserved Digital Central Supervisory Alarm Panel DCSAP STANDARD FEATURES The Cool Air Incorporated Digital Central Supervisory Alarm Panel DCSAP is designed to monitor 8 16 24 or 32 independent ammonia leak detectors and provides a central location for monitoring alarms The panel comes with these additional standard features e Digital display to display the concentration level of connected ammonia detectors only for detectors with a 4 20 mA output signal like the Cool Air Incorporated LB W 420 420 1 detectors e Audible and visible warnings of excess leak levels Early Warning amp Alarm of any connected ammonia leak detector
13. ammonia concentration reported by the ammonia leak detector on the selected unit number If the connected leak detector is a Cool Air Incorporated LBW 420 420 1 the display is scaled in PPM parts per million ammonia concentration If the connected leak detector is another brand with a 4 20 mA output the displayed value may not be scaled in PPM but will be proportional to the 4 20 mA output signal Cool Air Incorporated ammonia leak detectors that have a 4 20 mA output signal are scaled to a pre calculated PPM mA value depending on the programmed range selection see pages 20 21 As an example if the range selection was programmed for factory default setting of 0 400 r400 range the corresponding PPM mA would be 25 PPM and the milli amp reading would be 4 mA The PPM value will displayed on the four digit display and the mA reading is measured with the appropriate meter Two Digit Display The smaller two digit seven segment display on the front panel shows the current selected unit number which is displayed on the large four digit display Power LED The green Power LED is on and lit whenever power is applied to the DCSAP Page 14 Copyright 2013 by Cool Air Incorporated All rights reserved Digital Central Supervisory Alarm Panel DCSAP Lamp Test Switch The Lamp Test Switch is used to confirm that all lamps LEDs on the panel are functional To test lamps be sure that no Early Warnings or Alarms are active then press and
14. ear Panel Terminal Board Terminals Terminals on the Rear Panel Terminal Board provide connection points to connect Ammonia leak detectors A terminal block is provided for each Leak Detector Each terminal block is arranged and labeled per the following table Terminal Label Function 1 Wnc Warning contact Connect to Leak Detector contact that opens on warning or pre alarm 2 Com Common Alarm Warning terminal 3 Anc Alarm contact Connect to Leak Detector contact that opens on Alarm 4 Vo Vo 24 VDC nominal for 4 20 mA circuit 5 Ii terminal for 4 20 mA circuit 6 Io terminal for 4 20 mA circuit 7 Gnd Common GND terminal for 24 VDC Vo supplies The top three terminals on each terminal block provide connection points for normally closed Warning and Alarm contacts from the associated Ammonia leak detector The upper terminal connects to the Warning contact in the Ammonia leak detector the second terminal connects to the common contact terminal while the third terminal connects to the Alarm contact in the Ammonia leak detector All Cool Air Inc Ammonia leak detectors have normally closed warning and alarm contacts For connections to other Ammonia leak detectors that may lack one of these contacts or may have normally open contacts please consult a qualified Electrical Engineer or other qualified design source The bottom four terminals are provided to connect a 4 20
15. hile momentarily pushing the Decrement switch will decrease the unit number by one Page 15 Copyright 2013 by Cool Air Incorporated All rights reserved Digital Central Supervisory Alarm Panel DCSAP Ammonia Leak Detector Indicators amp Controls When reviewing each ammonia leak detector that is wired into the panel both Early Warning yellow and Alarm red LEDs are provided for quick indication of a detector s Early Warning and Alarm status A Normal Silent switch is provided to silence the panel alarm horn when an ammonia detector reaches Alarm status Once the Alarm condition has been corrected the panel alarm horn will continue to sound until the Normal Silent switch is returned to the normal position A Label area white area between the Normal Silent switch and the Warning Alarm LEDS is also provided for each ammonia detector Labeling can either be by numbering each detector and or by the area being monitored For correlation with the two digit unit number display and also for wiring purposes the ammonia leak detectors on the front of the panel are numbered from left to right and from top to bottom The top row is numbered from 1 to 4 the second row from 5 to 8 etc CIRCUIT BOARDS AND TERMINATIONS WARNING RISK OF ELECTRIC SHOCK DO NOT REMOVE COVER NO USER SERVICEABLE PARTS INSIDE REFER TO QUALIFIED SERVICE PERSONNEL AVIS RISQUE DE CHOC ELECTRIQUE NE PAS ENLEVER LE COUVERCLE AUCUN ENTRETIEN DE
16. m the time of purchase Cool Air Incorporated guarantees that the Digital Central Supervisory Alarm Panel when connected to and operated in accordance with the instructions contained in this manual will perform in accordance with the warranty expressed on the cover of the panel Not installing maintaining repairing or operating the panel in accordance with the instructions in this manual will automatically void the warranty Cool Air Incorporated will not be held liable for any losses liabilities judgments attorney fees claims or damages including incidental and consequential damages THE PANEL MUST BE TESTED AT LEAST ONCE A MONTH TO ENSURE IT IS OPERATING ACCURATELY AND CORRECTLY TEST AND CALIBRATION RECORDS MUST BE RECORDED ON APPROPRIATE LOG SHEETS Page 29 Copyright 2013 by Cool Air Incorporated All rights reserved Digital Central Supervisory Alarm Panel DCSAP DIGITAL CENTRAL SUPERVISORY ALARM PANEL SPECIFICATIONS Display 0 8 7 segment LED 4 digit 0 X 7 segment LED 2 digit channel indicator Controls Lamp test momentary toggle switch Common Warning silence switch Increment and Decrement channel momentary toggle switches Alarm silence toggle switch for each channel Relays Alarm and pre alarm 5A form C SPDT normally open normally closed energized in normal non alarm or warning state Outputs Contacts for alarm and pre alarm Operating temperature
17. mA signal from the Ammonia leak detector The 4 20 mA signal is connected to the I1 and terminals The VO and Gnd terminals provide a power supply for the 4 20 mA circuit if required Several alternate 4 20 mA circuit connections are shown below Page 25 Copyright 2013 by Cool Air Incorporated All rights reserved Digital Central Supervisory Alarm Panel DCSAP 4 20 mA connection The 4 20 mA output is a simple series circuit that includes an Ammonia leak detector and the Digital Central Supervisory Alarm Panel a power supply and the 4 20 mA receiving device Two versions of the circuit are shown below Vo Digital Central k E Ammonia Supervisory Gnd Leak Alarm Detector Panel 4 20 mA Circuit Using Internal Power Supply Power Supply Vo 1 Digital Central ond Pavan Superviso See Text for Hom y connection Leak from lo to Panel Gnd Detector 4 20 mA Circuit Using External Power Supply Page 26 Copyright 2013 by Cool Air Incorporated rights reserved Digital Central Supervisory Alarm Panel DCSAP Using the internal power supply is preferred but the external power supply connection is available for those situations where other circuit considerations make an external supply preferable When using an external power supply it is not required that Io be connected to Gnd however the voltage between Io and Gnd must not exceed 24 VDC For best noise im
18. munity use shielded wire for 4 20 mA circuits Connect shields but do not ground at any location where cables tie together as shown on the External Power Supply example Ground the shield at the Central Supervisory Panel only Single Point Ground for Shield If an external Power Supply is used it is recommended that it be a 24 VDC low noise power supply for this application although power supplies providing a minimum of 8 VDC to a maximum 30 VDC can be used The voltage drop across the detector Digital Central Supervisory Alarm Panel and any other devices in the circuit must not exceed the power supply voltage The Digital Central Supervisory Alarm Panel presents a resistance of 100 nominal ohms to the 4 20 mA circuit resulting in a voltage drop of 2 volts at 20 mA Page 27 Copyright 2013 by Cool Air Incorporated All rights reserved Digital Central Supervisory Alarm Panel DCSAP Appendix D TECHNICAL SUPPORT For technical support contact Cool Air Incorporated using any of these methods Contact Customer Service Phone 763 205 0844 USA Fax 763 432 9295 USA E mail info coolairinc com Website www coolairinc com Address Cool Air Incorporated 1544 134 Avenue NE Ham Lake MN 55304 USA Page 28 Copyright 2013 by Cool Air Incorporated All rights reserved Digital Central Supervisory Alarm Panel DCSAP WARRANTY The Digital Central Supervisory Alarm Panel comes with a 12 month warranty fro
19. n the terminal block Gently pull on the wire to confirm that it is properly clamped in the terminal Alternately the black lever on the terminal can be pushed further in the direction shown or lifted from the lower end until it goes over center and remains open until being returned to its closed position after inserting the wire Page 23 Copyright 2013 by Cool Air Incorporated All rights reserved Digital Central Supervisory Alarm Panel DCSAP Control Board Terminals Terminals on the Control Board provide connection to the Common Alarm and Common Warning relays The table indicates the function of each terminal Terminal Location Function 1 Top Alarm N C opens on alarm on any channel 2 Common Alarm terminal 3 Alarm N O closes on alarm on any channel 4 Not used 5 Warning N C opens on alarm on any channel 6 Common warning terminal 7 Bottom Warning N O closes on alarm on any channel Alarm contacts switch on alarm and return to normal when signal is acknowledged contacts switch again when alarm signal is removed and return to normal when acknowledge switch is returned to normal Warning contacts switch on warning signal contacts switch again when warning signal is removed Warning contacts do not respond to the acknowledge switch position Page 24 Copyright 2013 by Cool Air Incorporated All rights reserved Digital Central Supervisory Alarm Panel DCSAP R
20. ndicators amp Controls 16 CIRCUIT BOARDS AND TERMINATIONG cccssscssscesssscsscesssccesce 16 FRONT PANEL MOUNTED CIRCUIT 5 ccc 17 Control Display Circuit see 17 Light Switch Circuit Board sse 19 REAR PANEL TERMINAL BOARD eene eene 19 CHECKING THE FIRMWARE VERSION eere 21 TESTING THE PANEL AND 22 APPENDIX C TERMINAL BLOCKS 23 CONTROL BOARD 24 4 20 mA senes essen 26 APPENDIX D TECHNICAL SUPPORT 28 E MAIL ro 28 WEBS Bitiscsicsssivsscecsevsccsdacsavessusceacssacsececossoscececbaseasdestausasessbueceesescecscstbacees 28 WARRANTY sists issiscsssscsssssccassesssaccesssestescees ssvsecesssossbeaceesssostecassossecsbdssssesss 29 DIGITAL CENTRAL SUPERVISORY ALARM PANEL SPECIEICATIONS 7 oc sceteclsssessssetessisebececsdescostaushe sess sa ei 30 Page 3 Copyright 2013 by Cool Air Incorporated All rights reserved Digital Central Supervisory Alarm Panel DCSAP IMPORTANT READ THIS FIRST PLEASE READ AND UNDERSTAND THIS SECTION BEFORE INSTALLING AND OPERAT
21. output the range setpoint needs to be set to OFF A series of horizontal lines will be shown on the panel display Teach button Terminal Block Power Connector Control Display Circuit Board Page 18 Copyright 2013 by Cool Air Incorporated All rights reserved Digital Central Supervisory Alarm Panel DCSAP Light Switch Circuit Board The Light S witch Circuit Board s is are designed to plug into each other in a stacking fashion for up to a total of four boards 32 maximum unit numbers ammonia leak detectors The single stacked Light S witch board s is are plugged into the Control Display board to communicate signal and contact status to the control display board Each Light Switch board is also connected to an adjacent rear panel Terminal board via a flat ribbon cable Each Light Switch circuit board supports eight ammonia leak detectors with two LEDs Early Warning amp Alarm and a Normal Silent switch for each detector LED and switch functionality 15 described in an earlier section of this manual under Ammonia Leak Detecor Controls amp Indicators page 10 Rear Panel Terminal Board The modular Terminal Board s are mounted in the rear panel of the enclosure and provide a convenient point to connect wiring from the remotely located ammonia leak detectors Outputs from the Terminal Boards are wired to the Light Switch boards via flat ribbon cables WARNING RISK OF ELECTRIC SHOCK DO NOT REMOVE
22. r hold a sample bottle of ammonia of concentration between 50 and 200 PPM over the sensor 2 Check the LEDs on the Ammonia leak detector and on the Digital Central Supervisory Alarm Panel and be sure they operate according to the pre alarm early warning and alarm set points Also check the status via the Fieldbus if so equipped e Check the Digital display on the Ammonia leak detector and on the Digital Central Supervisory Alarm Panel and be sure both show an increasing concentration of ammonia Also check the value via the Fieldbus if so equipped 3 Remove the ammonia sample and confirm that the warning and alarm contacts and digital indications all return to normal Confirm that status and digital values monitored via the Fieldbus also return to normal if so equipped Testing is now complete Page 22 Copyright 2013 by Cool Air Incorporated All rights reserved Digital Central Supervisory Alarm Panel DCSAP Appendix C Terminal Blocks Terminal blocks are spring loaded to accept stripped wires without additional tools and without requiring tightening of screws Terminal blocks will accept solid or stranded wire from 28 AWG to 14 AWG 0 3 to 1 4 mm dia Wire should be stripped 1 4 inch A finger or a medium sized flat blade screwdriver or similar blunt tool can be used to momentarily open the terminal for insertion of the wire as shown in the illustration After inserting the wire release the tool to clamp the wire i
23. rd has two cube relays mounted on the right side board The top relay is for the common Alarm and the bottom relay is for the common Early Warning In the normal operating mode the relays are energized in a normally open state If a loss of power to the panel occurs the relays will de energize and the alarms if connected will sound A terminal block is provided on the right side of the Control Display board for wiring into the common early warning and or alarm relays Seven terminals on the terminal block provide termination for a normally closed N C common and normally open N O contact per relay with the center terminal not being used Please refer to appendix C for detailed information on the terminal blocks and techniques for making connections Page 17 Copyright 2013 by Cool Air Incorporated All rights reserved Digital Central Supervisory Alarm Panel DCSAP The momentary Teach button located in the upper left side corner is used for programming the ranges With the all wiring properly terminated power to the panel has been applied and no error codes showing simply press and hold the button Use the Increment switch to toggle through to the required range and release the button Remember the range setpoint of the panel needs to match the range setpoint of the detector for the displays to match with each other See the manual for the detector to program the the range setpoint For detectors that do not have a 4 20 mA
24. sion will be displayed on the large four digit display as an example 1 0 would be for version 1 0 Appendix A Error Codes In some conditions a code will be displayed on the four digit LED display to indicate the condition as an aid in troubleshooting The codes are described in the following table Error Code Description Selected channel less than 3 5 mA 4 20 mA circuit En2 Selected channel greater than 20 4 mA on 4 20 mA circuit Err3 Range selection error EnF Fault in Fieldbus module only occurs after power off reset Page 21 Copyright 2013 by Cool Air Incorporated All rights reserved Digital Central Supervisory Alarm Panel DCSAP Appendix B TEST AND CALIBRATION Be sure to follow all codes and company procedures that pertain to the maintenance repair testing and calibration of all safety equipment including this panel At a minimum the system must be tested after installation allow at least 8 hours after first applying power to the Ammonia leak detectors and at least once a month thereafter to ensure the panel and system are operating correctly All tests must be recorded on an appropriate log sheet Not installing maintaining or testing the panel according to the schedules and procedures in this manual will automatically void the warranty Testing the Panel and System To test the panel and system follow these steps 1 Ateach Ammonia leak detecto
25. t least one shielded pair Minimum wire size is 28 AWG and maximum wire size is 14 AWG 0 3 to 1 4 mm dia with the larger size limited by the terminal blocks on the DCSAP Connections to a LBW 50 or LBW RLV ammonia relief line gas detectors require 18 AWG wire minimum One way to achieve the required connection is with a single cable with three shielded pairs in the cable Shields should be connected to the ground terminal of the DCSAP and SHOULD NOT be connected to any other ground Shields that are connected to more than one ground point can not function correctly to reduce noise and can actually increase the noise level of the 4 20 mA signal Wire and or cable must be selected and installed to comply with local codes and with the requirements of the installation plenum or non plenum etc One cable that meets the requirement is Belden 8777 22 AWG 7 30 stranded 3 individual shielded pairs with 1 drain wire per pair or equivalent This cable consists of 3 individual foil shielded pairs of wires black amp red black amp white black amp green Each pair of foil wrapped wires contains a 22 AWG drain wire The only drain that is used is the drain wire for the black amp red pair of wires 4 20 ma signal lines DCSAP terminal block wiring 1 Remove factory install wire jumper from Wnc gt Com gt Anc DO NOT remove the factory jumper in location Io gt Gnd unless daisy chaining the 4 20 ma circuit to an external PLC 2
26. that the 4 20 mA circuit that connects the two units is scaled to same range in both units or to adjust the range in one or both units until they are both set to the same range CAUTION If the DCSAP and ammonia leak detector 4 20 mA scale factors range are not the same the PPM value indicated on the DCSAP 4 digit display and transmitted via the Fieldbus will not be correct The range does not affect the 4 20 mA value transmitted via the Fieldbus Since it is possible for ammonia leak detectors on different channels to be set to different ranges the range must be confirmed and or adjusted for each channel Page 11 Copyright 2013 by Cool Air Incorporated All rights reserved Digital Central Supervisory Alarm Panel DCSAP To determine the range for a DCSAP channel first select the channel using the Increment and Decrement switches until the desired channel number is displayed on the small two digit display Next open the door press the Teach button on upper left corner of the Display board see illustration on page 11 The range value OFF r100 1250 r400 r500 r800 or r1000 will be displayed on the large four digit display To change the range press and hold the Teach button then use the Increment switch to cycle through the seven values OFF 100 250 400 500 800 or 1000 until the desired range is displayed on the large four digit display When the desired range is displayed release the
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