American Dryer Corp. AD-830 User's Manual
Contents
1. American Dispensing Co AD 830 Electrical Troubleshooting 082396WS Manual 1995 1996 American Dispensing Company 88 Currant Road Fall River MA 02720 4781 Telephone 508 678 9000 Fax 508 678 9447 e mail service amdry com ADC Part No 182713 Retain This Manual In A Safe Place For Future Reference American Dispensing Company products embody advanced concepts in engineering design and safety If this product is properly maintained it will provide many years of safe efficient and trouble free operation ONLY properly licensed technicians should service this equipment Observe all safety precautions displayed on the equipment or specified in the installation operator s manual included with the water vending machine UNDER NO CIRCUMSTANCES should the pressure switch s or other safety devices ever be disabled We have tried to make this manual as complete as possible and hope you will find it useful ADC reserves the right to make changes from time to time without notice or obligation in prices specifications colors and material and to change or discontinue models Important For your convenience log the following information Model No AD 830 Date of Purchase Serial Number s Door Key Number s __ Coin Vault Number s Replacement parts can be obtained from your distributor or the ADC factory When ordering replacement parts from the factory you can2. FAX your order to ADC at 508 678 9447 or telephone your orders directly to the ADC Parts Department at 508 678 9010 Please specify the water vending machine model number and serial number in addition to the description and part num ber so that your order is processed accurately and promptly IMPORTANT YOU MUST DISCONNECT and LOCKOUT THE ELECTRIC SUPPLY BEFORE ANY COVERS or GUARDS ARE REMOVED FROM THE MACHINE TO ALLOW ACCESS FOR CLEANING ADJUSTING INSTALLATION or TESTING OF ANY EQUIPMENT per OSHA Occu pational Safety and Health Administration STANDARDS CAUTION LABEL ALL WIRES PRIOR TO DISCONNECTION WHEN SERVICING AD 830 WIRING ERRORS CAN CAUSE IMPROPER AND DANGEROUS OPERATION FOR YOUR SAFETY THE SYSTEM IS SHIPPED WITH A PRESERVATIVE SOLUTION MADE OF SODIUM BISULFITE AND IN THE WINTER MONTHS GLYCERINE MAKE SURE THE SYSTEM IS THOROUGHLY PURGED BEFORE LETTING ANYONE DRINK THE DISPENSED WATER REFER TO THE INSTALLATION SECTION ON PURGING PROCE DURE CAUTION Never look directly into the unprotected parts of the U V chamber when there is power to the sterilizer Serious burns to the eyes and the skin may result Always unplug power to the sterilizer before working on it IMPORTANT Please observe all safety precautions displayed on the equipment and or specified in the installation operators manual included with the AD 830 IMPORTANT The wiring diagram for the w
3. GAL selection key on the right you will confirm the new entries i The display will then show the new values j Turn the keyed program switch back to the run position 2 FILTER ERROR The R O Filter error message could be the result of the following a The R O Membrane is in need of replacement or cleaning Take a TDS measurement of the inlet and product side of the R O membrane The product TDS measurement should be 25 or less of the input TDS measurement The TDS measurement can only be taken after the 3 4 HP pump has run at least 1 minute b The R O Comparator has failed Test the Comparator with an ADC comparator tester The test cell has failed Remove and inspect both test cells for broken leads and corrosion Refer to wiring diagram Section A 1 through 5 for electrical reference R O Comparator Test Cells Outlet Test Cell oR 3 SUNNE NARRAN Inlet Test Cell Connection lh F a N g a H Test Cell Alarm Power i CEES Inlet Test Cell Soet ff S E Connection tials ve 3 FILTER ERROR The filter error message could be a result of the following a The sediment and or carbon filters are in need of replacement Monitor the pressure gauges while the machine is in operation Determine which filter has a 10 P S I differential pressure while the R O pump is running b The high pressure switch
4. No ADC Part No ADC Part No ADC Part No ADC Part No ADC Part No ADC Part No ADC Part No ADC Part No ADC Part No ADC Part No ADC Part No ADC Part No ADC Part No ADC Part No ADC Part No ADC Part No ADC Part No ADC Part No ADC Part No ADC Part No ADC Part No ADC Part No ADC Part No 123000 123001 123005 132077 132451 133356 137060 182000 182010 182012 182014 182016 182020 182049 182050 182060 182080 182081 182100 182101 182128 182129 182200 182298 182299 182305 182306 182307 182352 182355 182450 182451 182453 182455 182468 182470 182471 182804 182812 182820 Indicator Light 115 VAC Indicator Light 220 VAC Indicator Light 24 VAC 240v 50Hz 24 Voit Transformer MONA Contactor 24 VAC Power Cord 120 VAC Arc Suppressor A S Board Keypad Label Display Board Ribbon Connector Microprocessor Computer Changer Version Relay Board 24 VAC Coin Changer Power Converter Dispensing Circulation Solenoid 24 VAC Main Water Solenoid 24 VAC Trap Door Solenoid 24 VAC Reverse Osmosis R O Comparator with leads Reverse Osmosis R O Comparator Test Cells 37 4 HP Motor 115 240 VAC 60Hz 3 4 HP Motor 115 240 VAC 50Hz 3 5 GPM Pump 115 VAC 60Hz 3 5 GPM Pump 240 VAC 50Hz Ultraviolet U V Light with Alarm High Pressure Switch Low Pressure Switch Float Switch 24 VAC Internal Mount Float Switch
5. both the trap door and vending solenoids are opening Refer to wiring diagram Section C 5 through E 8 for Dispensing Pump Motor wiring Dispensing Pump CE und Fig 23 2 DRAIN PUMP MOTOR An inoperable drain pump could be a result of the following a Clogged drain b Unplugged spill switch c Incorrect positioning of the spill switch d Mechanical malfunction of the drain check valve When the spill switch is changed it is important that it is positioned correctly Incorrect positioning will change the switch into a normally closed contact causing the drain motor to continuously run refer to fig 25 Refer to wiring diagram Section B 3 B 4 for Spill Switch wiring Ks e Rod RA Spill Switch Drain Pump Fig 24 Fig 25 13 3 3 4 HP MOTOR An operable 3 4 hp pump could be a result of the following A No water supply to machine B Unplugged or defective low and or high pressure switches C Defective inlet solenoid D Defective relay board Defective motor contactor F Defective 3 4 hp motor G Defective inlet water solenoid Refer to wiring diagram Section A 8 A 9 for 3 4 HP motor wiring 14 mem ee Electrical Components List ADC Part No ADC Part No ADC Part No ADC Part No ADC Part No ADC Part No ADC Part No ADC Part No ADC Part No ADC Part No ADC Part No ADC Part No ADC Part No ADC Part No ADC Part No ADC Part No ADC Part
6. c The Base Float Switch has failed d The relay board has failed Refer to wiring diagram Section C 7 through C 8 for electrical reference Base Float Switch Base Float Switch Connection Fig 13 C Containment Tank Overflow Switch An Overflow error triggered by the Tank Overflow switch could be a result of the following a The Tank Overflow Float Switch has been disconnected b The Tank Overflow Switch has failed Refer to wiring diagram Section B 7 for electrical reference Overflow Switch D Vending Bay Tank Overflow Switch An Overflow error triggered by the vending bay Overflow Switch could be a result of the following a The Vending Bay Tank Overflow Switch is disconnected b The Vending Bay Tank Overflow Switch has triggered due to water not draining out of the tank The Vending Bay Tank Overflow Switch has failed d Unplugged drain pump e Defective drain pump f Defective relay board Verify that the drain pump is plugged in Confirm ALL connections to and from the relay board Verify that the board is operational Refer to wiring diagram Section B 3 for electrical reference a Switch Positioning Overflow Switch Fig 15 Vending Bay Tank Overflow l Float Switch Connection Fig 16 5 CHNGER UNPLUG ERROR The CHNGER UNPLUG error message could be a result of the following a Coin changer is unplugged b Defective coin changer c Defective power su
7. has been triggered Verify the pressure in the system is set at 175 psi If the pressure exceeds 175 psi check drain is not restricted also determine if check valve is stuck closed c The incoming water supply to the machine has decreased less than 35 psi Verify the incoming pressure while running never drops less than 35 psi Refer to wiring diagram Section C 5 through D 5 for high amp low pressure switch wiring Pressure Gage and Low Pressure Switch High Pressure Switch i Fig 7 High Low Pressure Switch Connections 4 OVERFLOW ERROR A U V Light An overflow error triggered by the U V light could be a result of the following a The U V light is not plugged in b The U V light is defective c The alarm connection to the relay board is not plugged in d The alarm on the U V Light has been triggered The bulb is not at the correct intensity and is in need of replacement refer to bulb replacement in the ADC Water Vending Machine Manual Part No 182714 e Defective Relay Board E Refer to wiring diagram Section C 5 through D 5 for electrical reference U V Intensity Indicator U V Light Alarm Connection serseri B Base Float Switch An Overflow error triggered by the Base Float Switch could be a result of the following a The Base Float Switch has been disconnected b The Base Float Switch has been triggered due to water flood in cabinet
8. 1 Dispensing Pump BERNA giie 2 2 ran Pump VIO COR 13 POAN NO OT aa a T O 14 Blectical Component EE 15 MICROPROCESSOR FAILURE CODES The microprocessor continually monitors the machine operation When an error occurs the machine will display a variety of failure codes which will lead the service technician to the potential prob lem The messages displayed do not pinpoint the problem within the wiring of the machine How ever they will indicate one or more possible failures Reference to the wiring diagram is necessary The possible OUT OF ORDER failure codes will consist of the following 1 FLOW METER this failure indicates the machine has a dispensing problem The microproces sor did not detect a flow of water on either side refer to Item 1 on page 4 2 R O FILTER this failure indicates the R O membrane filter is in need of service or may signify a problem with the R O comparator refer to Item 2 on page 6 3 FILTER this failure can indicate a variety of problems refer i Item 3 on page 7 a Sediment and or carbon filters are in need of replacement b High pressure switch has been triggered c Supply water is continuously less than recommended installation specifications 4 OVERFLOW this failure can indicate a variety of problems refer to item 4 on pg 8 a U V light has failed and is in need of serv
9. 24 VAC External Mount Normally Closed Door Switch 24 VAC Flow Meter Flow Meter Sensor Ground Fault Interrupter Push Mount Wire Tie 6 Amp Fast Acting Fuse 120V 60Hz 24 Volt Transformer 150VA Keyed Program Switch Flourescent Light 8 Watt Flourescent Lamp Replacement Coin Changer _ Australian Coin Changer Bill Validator 15 ADC 182713 1 06 04 96 30 2 08 26 96 100
10. ater vending machine is located behind the coin control door Water vending machine s must not be installed or stored in an area where it will be exposed to water and or weather Table of Contents Microprocessor SETI ra Go eo ee ee ee ee ae ee 2 Reiss 2 2 RO Filter E oad eects ct ace 2 OG tattle cs AE 2 2 OET SLAE pei N 2 6 Conger UNG sestren EEE 2 Pe E R 2 oystem Purge Do 3 Electrical Problems Associated with Microprocessor Failure Codes 4 Meter ineo eterna 4 PEE 1 Per Er TOT 6 7 eee wae T ee tee 9 C Containment Tank Overflow Switch 9 D Vending Bay Tank Overflow 10 hager Unplug cha ge esanian eee ret 1 Ov Oy Stem Renll Please 12 Pump Motors N EE ENE E E EEE N 17
11. ice b Base float switch has been triggered c Tank overflow float switch has been triggered d Vending bay tank overflow switch has been triggered e Relay board failure 5 USE OTHER SIDE this failure indicates the microprocessor does not detect a flow of water on the side that is in use The microprocessor will shut down this side and transfer the purchase to the other side refer to Item 1 on page 4 6 CHNGR UNPLUG this failure indicates there is a problem communicating with the coin changer refer to Item 5 on page 11 7 SYSTEM REFILL PLEASE WAIT this message indicates the water in the containment tank is low and is in the process of being refilled The message will automatically be reset when the system has enough water to cover the maximum amount of water that can be dispensed in one purchase refer to Item 6 on page 12 2 8 SYSTEM PURGE DO NOT DRINK this message will appear upon turn on of the machine It is not actually a failure but an installation safeguard This routine will flush out the preservatives that keep the R O Membrane contaminant free during storage The flushing will be accomplished by dispensing water for an extended period of time which will stop automatically NOTE With the exception of 6 ALL failure codes can be reset by entering the following key combinations 6 GAL left 6 GAL right 5 GAL left 5 GAL right 1 2 GAL left If the trigger failure is still presen
12. nding The counts per gallon in the program will have to be changed along with the flow meter If just the sensor element is replaced the recalibration may not be necessary To set just the calibration on both vending bays using teach mode proceed as follows Step 1 a Vend at least 1 gallon in both bays to purge out air pockets in the lines prior to calibration b Turn the keypad program switch to the program mode Press the 1 2 GAL selection key on the left then press the 1 2 GAL selection key on the right Both displays will flash TEACH MODE d Place two calibrated 1 gallon containers in the vending bay one on each side 5 6 Press and hold the 1 GAL selection key on right to activate the pulse count routine for both vending bays f When the gallon has filled completely release the key g If the two 1 gallon containers are not filled evenly you can vend small amount of water by pressing the 1 2 GAL selection key on the right for the left bay or the 2 GAL selection key on the right for the right bay h Press the 1 GAL selection key on the left then press the 1 GAL selec tion key on the right This is necessary to retain the information in memory NOTE After the counts have been derived the microprocessor will not override the previous values that are stored in memory The microprocessor needs an enter confirmation By pressing the 1 GAL selection key on the left then the 1
13. pply Refer to wiring diagram Section B1 C5 for coin changer wiring Coin Changer Microprocessor Panel br Coin changer T O Connection Coin changer Power Connection le et Fig 18 Fig 20 11 6 SYSTEM REFILL PLEASE WAIT The System Refill Please Wait message could be a result of the water level in the contain ment tank is below the low level switch If the machine is functioning correctly it should be refilling The message will automatically reset 1 minute after the water level has reached the low level switch A System Refill Please Wait message that does not reset could be the result of the a Shorted Low level float switch b Inoperative 3 4 hp motor refer to Item 3 on page 14 c Inadequate water supply to machine d Filters are in need of replacement Refer to wiring diagram Section Al A3 for Tank Low Level Float Switch wiring she on lank Microprocessor Panel vetes T ON ee f Low Level Switch k n Low level and left right flow meters input connection Fig 21 Fig 22 Pump Motors 1 DISPENSING PUMP MOTOR An Inoperable dispensing pump could be a result of the following a The polishing filter is in need of replacement b Unplugged Pump Motor c Vending problem refer to section 1 page 4 d Defective relay board NOTE You must verify the dispensing pump is plugged in Verify
14. t the code will not reset DO NOT RESET THIS SAFETY ROUTINE FOR THE INSTALLATION ELECTRICAL PROBLEMS ASSOCIATED with MICROPROCESSOR FAILURE CODES 1 FLOW METER ERROR The Flow Meter error message could be the result of the following a Flow meter failure 1 Flow meter sensor may need replacement 2 Flow meter housing may need replacement b A disconnected plug on the microprocessor panel c Failures with the dispensing solenoid valves d The trap door switch is defective or misadjusted e Defective trap door solenoid f Microprocessor output failure g Faulty dispensing pump 1 Unplugged dispensing pump 2 Defective dispensing pump 3 Defective relay board h Polishing filter is in need of replacement Verify that the dispensing pump is plugged in Confirm ALL connections to and from the relay board Refer to wiring diagram Section A 1 through B 3 for Flow meter Wiring Section D 1 through E 4 for Dispensing Valve trap door solenoid and switch and Section C 6 through E 8 for Dispensing Motor wiring Flow Meters 2855 Vending Solenoid Valve Low Level Right and Left Flow meter connection Trap Door Switch Trap Door Circulation Right and left vending solenoid Trap Door output connection Solenoid NOTE When a complete flow meter is changed some reprogramming is required The machine is relying on the information provided by the flow meter for accurate ve
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