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Rev. 4.2       4/10/2020 

Copyright © 2019 by Cool Air Incorporated.  All rights reserved. 

 

 

 

Wiring Diagram: LBW-50 

 

Installation wiring diagrams for the LBW-50.  The 100 to 240 VAC 

diagram is shown below, and the 24 VAC or 24 VDC diagram is on 

page 12. 

 

 

 

 

 

Summary of Contents for LBW-50

Page 1: ...L LB BW W 5 50 0 A Am mm mo on ni ia a L Le ea ak k D De et te ec ct to or r LBW 50 SS solid state sensor LBW 50 EC electrochemical sensor ...

Page 2: ...ifferent situations to avoid or not avoid for the proper operation of the equipment 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 ...

Page 3: ... 8 R RE EL LA AY Y L LE ED D S S 9 9 E EN NC CL LO OS SU UR RE E M MO OU UN NT TE ED D C CI IR RC CU UI IT T B BO OA AR RD D 9 9 R RE EL LA AY YS S 1 10 0 R RE EL LA AY Y S ST TA AT TU US S L LE ED DS S 1 10 0 E EX XT TE ER RN NA AL L C CO ON NN NE EC CT TI IO ON NS S 1 10 0 W WI IR RI IN NG G D DI IA AG GR RA AM M 1 11 1 I IN NS ST TA AL LL LA AT TI IO ON N A AN ND D S SE ET TU UP P 13 C CO ON NN...

Page 4: ... T TH HE E L LB BW W 5 50 0 D DE ET TE EC CT TO OR R C CA AU UT TI IO ON N Operating the detector in lower temperatures will slow the detector response rate and high humidity or excessive heat can cause the Minimal Concentration LED to light After applying power test the detector to ensure it is operating correctly Be sure the detector has been powered for at least 8 hours before testing Adequatel...

Page 5: ...onia concentrations Optionally available with an electrochemical sensor that is highly selective to ammonia Outputs are three dry contact relays S ST TA AN ND DA AR RD D F FE EA AT TU UR RE ES S The LBW 50 comes with these additional standard features Adjustable Alarm set point Normally open normally closed contacts for communicating with common industry alarm systems A NEMA 4X UL listed enclosure...

Page 6: ...the LBW 50 can be equipped with these options A remote ammonia sensor with cable allowing the sensor to be located a maximum of 500 feet away from the detector An internal back up battery to keep the detector working during loss of main power An ABS washdown tube installed over the sensor to minimize the chance of getting wet during washdown LBW 50 with Relief Line Sensor ...

Page 7: ...n how the display indicates ammonia concentrations see the sections on ammonia leak indication A Am mm mo on ni ia a S Se en ns so or r The detector comes with a solid state long life sensor that has a high sensitivity to amine compounds and a quick response to concentrations of ammonia The sensor is protected by a flame arrestor and has an integral heater and a ceramic base that is resistant to s...

Page 8: ... ou un nt te ed d C Ci ir rc cu ui it t B Bo oa ar rd d The front panel mounted circuit board contains the controls necessary for adjusting and operating the detector Each control is described in detail in the following pages When the detector enclosure is open this circuit board is on the left attached to the front panel ...

Page 9: ...er to set the service switch back to the Normal mode A Ad dj ju us st ta ab bl le e A Al la ar rm m P Po ot te en nt ti io om me et te er r There is one adjustment potentiometer that is provided to set the Alarm set point The Pre Alarm Early Warning is adjusted at the factory and locked into place The Alarm set point is also pre set at the factory but is field adjustable The adjustment procedure i...

Page 10: ...Mo ou un nt te ed d C Co om mp po on ne en nt ts s The enclosure mounted components include a AC to DC converter for 100 to 240 VAC 50 60 Hz operation An optional back up battery can be installed in the location shown and wired to the front panel circuit board Battery terminal P Po ow we er r S Su up pp pl ly y WARNING RISK OF ELECTRIC SHOCK DO NOT REMOVE COVER NO USER SERVICEABLE PARTS INSIDE REF...

Page 11: ...The Alarm Pre Alarm Early Warning and the Auxiliary relays The Auxiliary relay operates at the same time as the Alarm relay In the normal operating mode the relays are energized in a normally open state If a loss of power to the detector occurs the relays will de energize and the alarms if connected will activate R Re el la ay y S St ta at tu us s L LE ED D s s Each relay has a surface mounted LED...

Page 12: ...0 2020 Copyright 2019 by Cool Air Incorporated All rights reserved Wiring Diagram LBW 50 Installation wiring diagrams for the LBW 50 The 100 to 240 VAC diagram is shown below and the 24 VAC or 24 VDC diagram is on page 12 ...

Page 13: ...Page 12 Rev 4 2 4 10 2020 Copyright 2019 by Cool Air Incorporated All rights reserved ...

Page 14: ...he sensor in designated smoking areas as even a minute concentration of smoke will set off the alarm When power is first applied to the detector in the field it will immediately go into Alarm status and the LED s will indicate a large ammonia concentration This is normal When the sensor warms to normal operating temperature usually about a minute the detector will return to a non alarm status For ...

Page 15: ...clockwise to decrease the sensitivity 5 Slide the service switch back to the Normal setting 6 For testing and calibrating the leak detector see the TESTING CALIBRATION section on page 19 22 C CO ON NN NE EC CT TI IN NG G T TH HE E E EL LE EC CT TR RO OC CH HE EM MI IC CA AL L S SE EN NS SO OR R Connect wire 3 to BLK terminal Connect wire 2 to GRN terminal Connect wire 1 wire with blue stripe to WH...

Page 16: ...to the Remote Sensor are made at the LBW 50 terminal strip on the Front Panel Circuit Board using 4 conductor shielded cable Note specifically that the RED WIRE CONNECTS TO THE RED REM TERMINAL AND DOES NOT CONNECT TO THE RED TERMINAL Also the shield and or drain conductor connects to the GRN terminal along with the Green wire on the LBW 50 only do not connect in the Remote Sensor The Remote Senso...

Page 17: ...arm device is pictured next to the wiring diagram Backup Battery Testing Installation and Replacement The LBW50 can be supplied with an optional Backup Battery from Cool Air Incorporated This backup supply is good for approximately 1 hours of operating time During normal operation the backup battery is not used but is kept trickle charged In the event of a power failure the unit will seamlessly op...

Page 18: ...terminal plug the red wire to the red terminal and reconnect the leak detector power supply Allow 24 hours of leak detector operation time before testing the new battery A Am mm mo on ni ia a L Le ea ak k I In nd di ic ca at ti io on n In the event of a higher than normal ammonia concentration the front panel LEDs will indicate as follows If the Ammonia Concentration Then the And Equals or exceeds...

Page 19: ...ia sensor is installed the detector must be recalibrated All tests and calibrations must be documented TESTING To test the detector follow these steps 1 Open the detector enclosure and slide the service switch to the SERVICE position if needed This step deactivates the Early Warning Alarm and Auxiliary relays so that any attached strobe lights horns and or monitoring systems are not activated In s...

Page 20: ... shall light up Also the Alarm and Auxiliary relays shall de energize Remember during the calibration procedure the Early Warning LED lamp amber lamp will light up and the Early Warning relay shall de energize This is a factory set non adjustable setting 5 To fine tune the Alarm set point adjust the POT2 potentiometer large potentiometer until the Alarm LED lamp just lights up and the relays de en...

Page 21: ... 1 Open the detector enclosure and slide the service switch to the SERVICE position if needed This step deactivates the Early Warning Alarm and Auxiliary relays so that any attached strobe lights horns and or monitoring systems are not activated In some applications if alarming is required leave the service switch in the NORMAL position 2 Using precision Cal Gas of known ammonia concentration pres...

Page 22: ...r at 3LPM for two minutes The top LED lamp large lamp shall light up Also the Alarm and Auxiliary relays shall de energize at this time Remember during the calibration procedure the Early Warning LED lamp amber lamp will light up and the Early Warning relay shall de energize This is a factory set non adjustable setting 12 To fine tune the Alarm set point adjust the POT2 potentiometer large potenti...

Page 23: ...ctly from the Cool Air Incorporated T TE EC CH HN NI IC CA AL L S SU UP PP PO OR RT T For technical support contact Cool Air Incorporated using any of these methods Contact Sales coolinc com Phone 763 205 0844 USA Fax 763 432 9295 USA E mail sales coolairinc com Web site www coolairinc com Address Cool Air Incorporated 1544 134th Ave NE134th Avenue NE Ham Lake Ham Lake MN 55304 55304 USA ...

Page 24: ...n the cover of the detector Not installing maintaining repairing or operating the detector 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 DETECTOR MUST BE TESTED AT LEAST ONCE A MONTH IN CRITIC...

Page 25: ...Alarm Pre Alarm and Auxiliary auxiliary relay operates at same time as alarm relay Form C SPDT normally open normally closed energized in normally open state Rated 5A 115 VAC or 24 VDC Outputs Contacts for alarm pre alarm and auxiliary relays and external temperature sensor Operating Temperature 50 F to 125 F Solid State Sensor 10 F to 125 F Electrochemical Sensor Operating Humidity 5 to 95 RH non...

Page 26: ...ved L LB BW W 5 50 0 S SP PE EC CI IF FI IC CA AT TI IO ON NS S c co on nt t d d Pollution Degree 1 Options 1 Remote ammonia sensor with box and cable 500 ft max 2 Back up battery 3 ABS washdown tube 4 Remote alarm light and horn unit with box cable TEST NORMAL SILENCE toggle switch ...

Page 27: ...Page 26 Rev 4 2 4 10 2020 Copyright 2019 by Cool Air Incorporated All rights reserved THIS PAGE INTENINALY LEFT BLANK ...

Page 28: ... 53 30 04 4A Av ve en nu ue e N NE E H Ha am m L La ak ke e 5 55 53 30 04 4 U US SA A P Ph ho on ne e 7 76 63 3 2 20 05 5 0 08 84 44 4 F Fa ax x 7 76 63 3 4 43 32 2 9 92 29 95 5 i in nf fo o c co oo ol la ai ir ri in nc c c co om m w ww ww w c co oo ol la ai ir ri in nc c c co om m ...

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