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ANALOG BOILER
CONTROLLER

MODEL ABC 50

INSTALLATION
OPERATION
MAINTENANCE
INSTRUCTION

®

$5.00 USA $6.25 CANADA

©1997 Pulsafeeder

72-500-06

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Содержание ABC 50

Страница 1: ...ANALOG BOILER CONTROLLER MODEL ABC 50 INSTALLATION OPERATION MAINTENANCE INSTRUCTION 5 00 USA 6 25 CANADA 1997 Pulsafeeder 72 500 06 ...

Страница 2: ...ch fees and costs associated with replacement parts ABC WARRANTY Pulsafeeder Inc warrants ABC control systems of its manufacture to be free of defects in material or workmanship Liability under this policy extends for 24 months from date of shipment The manufacturer s liability is limited to repair or replacement of any failed equipment or part which is proven defective in material or workmanship ...

Страница 3: ...ntrollers are used to control total dissolved solids TDS in steam boiler systems in terms of electrical conductivity measured in microsiemens per cm µS cm They are designed using the latest technology with plug in circuit boards The units are very accurate and easy to use This simplified design provides automated control at an economic cost The ABC Series comes standard with connections for AC pow...

Страница 4: ...accessible by the operator for cleaning and maintenance The enclosure is corrosion resistant and will stand up to most industrial envi ronments Be sure unit is free from vapors and liquid spills Refer to Fig 1 Typical Installation Diagram Installation should comply with all national state and local codes 2 INSTALLATION Fig 1 Typical Installation Diagram ABC ABC 4 ...

Страница 5: ...low down valve solenoid and strainer or motor operated ball valve 2 Two needle valves or two orifice unions and plates for throttling blowdown 3 A full port gate valve for isolation of blowdown assembly 4 A flush valve for sensor D PLUMBING A flow rate of at least 1 3 gpm gallons per minute at the electrode is required for proper operation Install hand valves on both sides of electrode for easy re...

Страница 6: ... they change simultaneous ly and have a maximum output of 5 amps The ABC 50 has two fuses for protection a 1 amp fuse for the controller power supply and a 5 amp fuse for the relay output Part numbers can be found in the Trouble Shooting section Use the following table when connecting to JP4 JP5 and JP16 CIRCUIT DESIGNATOR CONNECTION TYPE BLK or NO NC Line WHT Return GRN Ground NOTE Always use cau...

Страница 7: ...the wire too far into the socket such that the insulation is clamped by the connector CIRCUIT DESIGNATOR CONNECTION TYPE PROBE WIRE COLOR RED Probe Red BLK Probe Black CLR Probe Temp Comp Clear Green or White SHD Probe Wire Shield Silver no Insulation NOTE Do not connect the ground wire to the Shield SHD input It is for the shield of the probe cable only NOTE The ABC 50 does not support temperatur...

Страница 8: ...ob to set desired trip point to activate bleed and feed This knob and scale is also used during calibration B CALIBRATION The ABC 50 controller will require calibration periodically due to changes in temperature and the electrodes becoming dirty Use the test switch to force a system blow down if necessary for gathering a sample of system water NOTE For best results calibrate the ABC 50 at a conduc...

Страница 9: ...e When the con trol led turns off stop turning the cal knob the unit is calibrated C SETTING CONDUCTIVITY TRIP POINT 1 Turn Trip Point Knob to position pointer on scale to desired trip point See Fig 9 NOTE All standard ABC units have a differential control that has been factory set to approximately 6 of the Trip Point This important fea ture prevents chattering the rapid on off switching of the re...

Страница 10: ...0 minutes A jumper in JP8 selects 24 hours JP9 selects 8 hours JP10 selects 2 hours and JP11 selects 30 minutes Jumper only one of the positions JP8 through JP11 In the Timed Mode there is a choice of 30 sec 1 2 or 4 minute blow down intervals A jumper in JP15 selects 30 seconds JP14 selects 1 minute JP13 selects 2 minutes and JP12 selects 4 minutes Jumper only one of the positions JP12 through JP...

Страница 11: ...1 Typical Installation Diagram 3 Open flush valve to drain water from the electrode piping This will help removal of the electrode 4 Unscrew electrode and remove electrode by pulling straight out See Fig 11 Electrode B CLEANING ELECTRODE 1 Wipe the electrodes with a clean cloth It is important to be sure to wipe the sides of the electrodes as well as the ends 2 Use fine grain emery cloth for stubb...

Страница 12: ...ller calibration at least once every two months The more frequent the maintenance the more assurance you have of reliable controller performance By observing readings before and after electrode cleaning you can determine how often to clean the electrode If no change or only a small change in read ings occurs clean the electrode less often If a large change in readings occurs clean the electrode mo...

Страница 13: ...ystem Check blow down valves come on Control light goes on and Electrode is air bound Bleed air from electrode by off every few minutes allowing water to completely fill and flow through it to drain Adjust throttling valve so that only water flows across the probe Check surface skimmer 4 to 4 inches below surface Wide variation in solution Poor circulation through Clean electrode conductivity elec...

Страница 14: ... 12 REF 05 057 02 KNOB 1 4 INSERT W SET SCREW 11 REF 06 151 00 SCREW 6 32 10 REF 03 005 18 O RING 441 OD 301 ID 070 THK 9 REF 11 006 01 ROLL PIN 8 REF 06 028 06 SCREW 7 REF 11 006 09 BRACKET WALL FLOW MTG 6 REF 01 060 02 ENCLOSURE 5 REF 02 092 04 MOUNTING PANEL 4 REF 08 986 0012 MAIN ASS Y ABC PCB 3 REF 02 092 00 PANEL MAIN PCB MTG 2 REF 03 005 60 GASKET ENCLOSURE 1 REF 02 092 02 COVER CONTROLLER ...

Страница 15: ...PROBE 5 1 03 131 00 UNION BOILER 1 2 L500 4 2 03 180 00 NIPPLE 1 2 X CLOSE GALVANIZED 3 1 03 180 20 GASKET ACCESS TEE 1 2 OLKRG 2 1 03 180 10 COVER ACCESS TEE 1 2 OL10 1 1 03 178 00 ACCESS TEE 1 2 OT 1 NOTE Use Teflon tape on all NPT fittings 1 VENT ONLY LEAVE OPEN 5 NOTE ARROW MUST BE IN DIRECTION OF FLOW 6 7 4 2 ...

Страница 16: ...ator LED Weather tight enclosure designed to NEMA 4X Wall mountable B ABC MODEL STANDARD FEATURES ABC 50 Dial conductivity controller 0 5 000 µS cm ABC 101 Dial conductivity controller selectable scale 0 500 1000 2000 5000 10 000 and 20 000 µS cm ABC 102 Analog meter conductivity controller selectable dual scale 0 500 1000 2000 5000 10 000 and 20 000 µS cm C OPTIONS SERIES AVAILABLE M 3 4 20 mA Is...

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