Operation of the MD70-15 Liquid Transfer Station
Contents
1. sssssesessss 15 Liquid Transfer SIalolN eo dcl eec Ral tee dt de A E dU 15 Filter Maintenance seseeesssssesseseeeeeeeenn nennen nennen nnn n innt nnne 15 Holding Tank Maintenance icc itte roc bu tur aute tue Un Rene ut udis 15 Pump Head Maintenance ccccccceeeeeeeeeeeceeeeeeeeeeeeeseaaaaaeeeeeeeeeeeeeneeaaeees 15 Specifications for the MD70 15 Liquid Transfer Station 17 Illustration 1 Illustration 2 Illustration 3 Illustration 4 Illustration 5 Illustration 6 Illustrations Specifications for Installing the Liquid Transfer Station 4 Schematic for Soft Plumbing the Liquid Transfer Station 6 Operational Schematic of the MD70 15 cccceeeeeeeeeeeeeeeeeeeeeees 8 Exploded View of the Y Strainer Assembly 9 Exploded View of the MD7ORLT Iwaki Walchem Pump 10 Wiring Schematic for the MD70 15 Control Box 16 HALLMARK REFINING CORPORATION 2 MD70 15 Liquid Transfer Station Overview of the MD70 15 Liquid Transfer Station HRC pump stations are designed to resist leakage and corrosion from all photo processing chemicals Magnetic Drive Pumps do not use seals eliminating leakage through the pump assembly They are thermally protected and within reasonable limits can be run dry without pump damage They are CPVC constructed with the mot2. 1 210 002 SS Hex Nut 10 211 002 SS Hex HD Cap Screw 10 32 807 010 Elbow 1 Slip x FPT D HALLMARK REFINING CORPORATION 1 MD70 15 Liquid Transfer Station TROUBLE SHOOTING LEDS POWER LED CIRCUIT BREAKER PUSH TO RESET X HIGH LEVEL ALARM SWITCH PUMP MOTOR ON SWITCH SS PUMP MOTOR OFF SWITCH a Illustration 3 Operational Schematic of the MD70 15 HALLMARK REFINING CORPORATION MD70 15 Liquid Transfer Station Parts List for the MD70 15 Y Strainer Assembly Reference Part Part Description Quantity Number Number 1 NA Y Strainer Housing 1 2 540 014 Retainer Clip 1 3 540 012 Filter Screen 1 4 NA Filter Body 1 5 540 013 O Ring 1 6 NA Cap 1 7 NA Support Ring 1 540 008 Complete Y Strainer Assembly Includes 2 preassembled elbows and tubing The entire assembly must be purchased These parts are not available separately Illustration 4 Exploded View of the Y Strainer Assembly HALLMARK REFINING CORPORATION MD70 15 Liquid Transfer Station Parts List for the MD70RLT Iwaki Walchem Pump Item Description Quantity Part Number 1 Bolts and Washers 6 Sets 210 075 2 Front Casing 1 702 094 3 O Ring 1 702 069 4 Impeller with Spindle 1 702 073 5 Rear Casing 1 702 074 6 Magnetic Drive Assembly 1 702 075 6 Sp C 4 3 MD 40RLT RLXT 4 MD 55 100RLT x x
3. MD TORLT Illustration 5 Exploded View of the MD70RLT Iwaki Walchem Pump HALLMARK REFINING CORPORATION 10 MD70 15 Liquid Transfer Station Instructions for Using Iron Out in Photo Lab Applications Iron Out should be used as a preventative measure to reduce iron build up in photo labs that use steel wool type silver recovery units Photo labs that operate a liquid transfer station are at the most risk of damage from iron build up Excessive iron buildup will cause liquid transfer station malfunction and clogged pipes It is recommended that Iron Out be used weekly for best results Items needed Warm water 1 cup of Iron Out 2 5 Gallon Container 1 Slowly mix 1 cup of Iron Out with 1 gallon warm water in a container Be sure the Iron Out dissolves completely 2 Pour the dissolved solution down the drain preferably after the lab has closed This allows the Iron Out sufficient time to sit in the liquid transfer station s holding tank or pipes and dissolve iron buildup DO NOT pour the powdered Iron Out down the drain first then flush the sink with water Undissolved Iron Out tends to crystallize and contributes to the buildup problem Iron Out will not solve current drainage problems It is intended as a preventative measure only Current problems need to be addressed and resolved before Iron Out can be effective HALLMARK REFINING CORPORATION 11 MD70 15 Liquid Transfer Station Troubleshooting Guide for the
4. MD70 15 Liquid Transfer Station PROBLEM POSSIBLE SOLUTION The pump is running but is Y Strainer screen could be plugged See Filter Maintenance moving little or no solution The red LED is blinking and the Pick up tube inside the tank could be clogged alarm is sounding Ball valves see diagram may have been left closed after last maintenance procedure See Holding Tank Maintenance The impeller assembly may be worn or damaged See Pump Head Maintenance The pump may have lost it s prime With the system on twist the Y Strainer screen cap off until a drip of liquid comes out This should remove any air locks Tighten the cap immediately How many elbows are on the discharge side of the MD70 15 motor No more than two are recommended Refer to the installation guide in this manual for further information The discharge pipe should be no smaller than 1 and no larger than 2 If the pipe is smaller than 1 a plumber cannot snake the line If the pipe is larger than 2 too much head pressure is created on the system Refer to the installation chart in this manual for further information The float switches need to be The system is probably hard plumbed It is recommended that checked but the holding tank is a plumber install flexible plumbing or a quick disconnect As a not accessible temporary solution try jiggling the holding tank to dislodge debris The 9 volt battery needs The system is probably hard plumbed It
5. operation of the unit no Alarm e The middle float switch has activated the pump to run without the bottom float switch being activated Refer to Holding Tank Maintenance Blinking Light A fault has occurred in the operation of the unit The with Alarm top float switch has been activated e There are many reasons that the top float switch could be activated Refer to the troubleshooting guide for possibilities The most common problem is that the Y Strainer filter needs to be cleaned Under normal operating conditions the unit should turn on and off without activating the high level alarm HALLMARK REFINING CORPORATION 14 MD70 15 Liquid Transfer Station Maintenance Procedures for the MD70 15 Liquid Transfer Station Filter Maintenance The Y Strainer screen should be cleaned daily Heavy algae or other particulate build up will necessitate more frequent cleaning Failure to service this screen will result in a reduced pumping rate and could damage the pump head assembly Service this assembly using the following procedure 1 Disconnect the pump station from the power supply 2 Close the 1 valve from the holding tank to the Y Strainer see diagram and the 1 valve to the drain 3 Unscrew the filter assembly from its housing 4 Remove the retaining cap at the bottom of the filter assembly it snaps off and slide the screen out of the filter assembly The screen can then be cleaned by rinsing it in a stream of tap
6. the valve Y I 2 1 Ball Valve LI 4 EN 28 Pick up intake hose for the pump This Q MUST be directed toward the bottom El i of the tank L lo J Illustration 2 Schematic for Soft Plumbing the Liquid Transfer Station CT HALLMARK REFINING CORPORATION 6 MD70 15 Liquid Transfer Station Parts List for the MD70 15 Liquid Transfer Station Reference Part Part Description Quantity Number Number 1 905 170 Holding Tank Assembly 1 Complete with base plate rubber feet pick up tube assembly and gasket 914 500 Tank Cover Small 8 14 x 5 v7 914 502 Tank Cover Large 8 14 x 8 v7 200 014 Holding Tank Gasket 3 915 120 Control Box Assembly 915 049 MD70 15 Drop in Assembly 436 020 Male Adapter for Sink and Vent 741 005 5 Amp Circuit Breaker 728 018 Power Cord 740 006 Circuit Board 14 502 010 Check Valve 1 730 003 Alarm Buzzer 808 010 PVC Elbow FPT x FPT 19 505 010 Ball Valve 1 836 010 Male Adapter 1 336 010 Hose Fitting 1 522 012 Hose Clamp 23 540 008 Complete Y Strainer Assembly 540 012 Y Strainer Screen Orange 540 014 Y Strainer Retainer Clip 519 010 Tank Adapter 1 918 003 Pick Up Tube Assembly 25 915 017 Float Switch Assembly 524 001 Liquid Level Switch 28 702 285 MD70RLT Pump 702 046 MD70 Impeller Assembly SS Ss CO Sa Ss 884 005 PVC Nipple
7. HALLMARK REFINING CORPORATION 13 MD70 15 Liquid Transfer Station Interpretation of the LED s on the Control Box As stated in the Operations section of this manual the MD70 15 Liquid Transfer Station has a series of LED s on the face of the control box that indicate certain conditions are present during operation of the system The following table explains these LED indicators in greater detail Appearance Condition Present Green Solid Light Electrical current is present at the system The unit LED has power e fthe system is completely full of liquid and the light is still solid green and no other lights are present the circuit board is inoperable Blinking Light The unit is operating normally The circuit board in the system is performing as programmed Yellow Solid Light The pump has been activated to run LED e f the pump is not running the pump motor may be burnt out Blinking Light The top float switch has been activated and a time out sequence has occurred e f the top float switch is activated for more than five minutes the pump will shut off to avoid burning out the pump motor An alarm will sound The red LED will be blinking The alarm can be cancelled The system will turn on and repeat this cycle every thirty minutes for five minutes at a time until the problem is cleared Refer to the troubleshooting guide for possible solutions Red LED Blinking Light A fault has occurred in the
8. Hallmark Refining REFINING Corporation EM OPERATING INSTRUCTION MANUAL Liquid Transfer Station Hallmark Refining Corporation 1016 Dale Lane PO Box 1446 Mount Vernon WA 98274 Phone 360 428 5880 Toll Free 800 255 1895 Fax 360 424 8118 www hallmarkrefining com Revised June 2008 MD70 15 Liquid Transfer Station Statement of Warranty and Liability All equipment manufactured by HRC is guaranteed against defects in materials and workmanship for a period of six months from the date of shipment from our factory Any claimed defects must be reported and the materials and or equipment must be returned freight prepaid to our plant within the guarantee period Our liability for defects in material and or workmanship shall be limited to the replacing or repairing at our option such defective materials and or equipment at no cost to the purchaser Any damages or loss occurring during shipment are not covered by this warranty but are the responsibility of the carrier s Please report all shipping damage to the carrier s immediately All materials and or equipment furnished by other suppliers carry no warranty except said supplier s warranty as to materials and workmanship Transportation handling damage wear and tear and other causes of damage outside the control of the manufacturer are not covered by this warranty Under no circumstances will HRC be responsible for any damage loss or liability of any nature arising out
9. ecessary to remove sludge Reattach the lid assembly to the holding tank with the wing nuts Reconnect the pump station to the power supply Open the valves that were closed prior to the maintenance procedure and check for leaks NOTE When reassembling the lid be certain that the float switches are not obstructed by the pick up tube assembly at the bottom of the holding tank The float switches must operate freely Los Pump Head Maintenance On certain occasions it may be necessary to change the liquid end of the MD70 15RLT pump Follow this procedure to minimize the difficulty in accessing the liquid end of the pump If components are being replaced it is highly advisable to replace the complete liquid end LMD70RT to prolong the life of the other components 1 Disconnect the pump station from the power supply 2 Close the 1 valve from the holding tank to the Y Strainer see diagram and the 1 valve to the drain 3 Unscrew and remove check valve from the pump 4 Remove screws holding the front casing of the pump 5 Carefully pull the front case away from the pump motor There is a certain amount of flex in the tubing to the holding tank which will allow the pump head to be pulled away from the pump motor 6 The impeller rear case and O Ring can now be removed and the front case unscrewed from its connection point 7 Replace worn parts and reassemble making certain to wrap the threaded fitting which attaches to the f
10. is recommended that replacing but the control box a plumber install flexible plumbing or a quick disconnect lid cannot be removed The pump station does not have Has the breaker at the main power panel been thrown Check a green power light and reset if necessary Has the breaker at the pump station been thrown Reset the circuit breaker on the control box and check for the reason it blew The four most common reasons are the red handled ball valves are closed the check valve is not operating installed properly the impeller is damaged or the pipes after the liquid transfer station are blocked Is there a switch in the lab that controls power to the electrical outlet Has the GFI circuit breaker at the outlet been checked HALLMARK REFINING CORPORATION 12 MD70 15 Liquid Transfer Station PROBLEM POSSIBLE SOLUTION The pump station is overfilling The pump may have lost it s prime With the system on twist or appears to be leaking The the Y Strainer filter cap off until a drip of liquid comes out This red LED is blinking and the alarm should remove any air locks Tighten the cap immediately is sounding Airlocks occur because of the introduction of too much liquid at one time If this is a continuous problem the drain hole of the sink may need to be shrunk Hire a plumber to restrict the size of the drain hole in the sink so that too much liquid cannot be introduced into the pump station at one time Y Strainer fil
11. level drops below the bottom float switch The pump will then stop running until it is activated again by the addition of fluid to the holding tank As mentioned in the overview of this manual there are certain maintenance procedures that must be followed for the optimal performance of the liquid transfer station More detail of these maintenance procedures can be found immediately following the troubleshooting section in this manual In an effort to simplify the troubleshooting process there are lights on the control box of the MD70 15 that indicate certain conditions are present Green LED A solid green LED indicates that the unit has AC electrical power Under normal operating conditions the green LED will flicker continuously when the circuit board is ready to run Yellow LED The yellow LED indicates that the pump has been activated If this light is blinking the pump was activated in an abnormal sequence and a system error condition exists Refer to the troubleshooting guide for additional information Red LED The blinking red LED indicates a fault has occurred in the operation of the unit Usually this is an indicator that the high level alarm has been activated In this case an alarm will sound to inform the user that the holding tank contains too much liquid As a safety precaution the top float switch will activate the pump to run if the middle or bottom float switch did not activate to turn on the pump After 2 minutes of the
12. of the installation and or use of the materials and or use of equipment furnished There are no other warranties expressed or implied except as stated above The warranty becomes null and void if any devices or accessories other than those distributed or officially recommended by HRC are installed or attached to this equipment HALLMARK REFINING CORPORATION 1 MD70 15 Liquid Transfer Station Table of Contents Statement of Warranty and Liability seesssssessssessess 1 Overview of the MD70 15 Liquid Transfer Station 3 Installation of the MD70 15 Liquid Transfer Station 4 Operation of the MD70 15 Liquid Transfer Station 5 Parts List for the MD70 15 Liquid Transfer Station 7 Parts List for the MD70 15 Y Strainer Assembly sssssssse 9 Parts List for the MD70RLT Iwaki Walchem Pump sssssse 10 Instructions for Using Iron Out in Photo Lab Applications 11 Troubleshooting Guide for the ssssssseeeeeeee 12 MD70 15 Liquid Transfer Station esssssssssssseeee 12 Interpretation of the LED s on the Control Box 14 Maintenance Procedures for the MD70 15
13. or totally enclosed and fan cooled The MD70 15 pump station is equipped with an in line filter screen The trouble free operation of this pump station is critically dependent on the proper maintenance of its in line filler screen system Y Strainer The pump station must be installed so that the screen is easily accessible This manual s page on pump station maintenance further elaborates on the details of cleaning the Y Strainer screen The procedure is quite simple and absolutely essential In most instances this pump station will arrive configured with a sealed lid The lid is attached to the tank with stainless steel bolts and nuts and functions as a barrier against gases which may be present in your drain system The sealed lid is not intended as a barrier against solution overflow The pump is also equipped with a high liquid level alarm system should the incoming solution reach the level of this alarm switch an audible buzzer will sound Do not disable this switch If an audible alarm is experienced regularly the pump station is not working properly The filter may be blocked or the pump station may be unable to keep up with the incoming flow of solution Consult the troubleshooting guide for further information This system has been designed to function as an under the sink transfer station It is therefore frequently hard plumbed making it very difficult to perform service work at a later time In order to service the in line fil
14. pump operating while the unit contains too much liquid the pump will turn off This is intended to reduce the likelihood of the pump motor burning out from running continuously for extended periods of time The high level alarm can be silenced but the station will continue to turn on the pump and alarm every thirty minutes for two minute intervals until the situation is resolved and the float switch has been released Refer to the troubleshooting guide and the interpretation guide of the LED s for additional information HALLMARK REFINING CORPORATION 5 MD70 15 Liquid Transfer Station Vent Inlet aL 1 Ball Valve l 2 Rubber Couplers QO TTL Available at any hardware store or plumbing supply house Use all stainless clamps LLII lalc an 3 f 1 Z A 1 Outlet Il 19 vem 0 3j X U E Venting tube prevent s the 1 True Union Check Valve pump from X This valve is directional E vaporlocking Arrow indicating flow direction gt v4 is on the side of
15. ront case with teflon tape HALLMARK REFINING CORPORATION 15 MD70 15 Liquid Transfer Station 9V BATTERY TOP SWITCH ALARM LEVEL PUMP ON ALARM SOUND ND MIDDLE SWITCH BLACK AC TRANSFORMERI PUMP ON Fy i SPEAKER BOTTOM SWITCH LOW LIQUID LEVEL CIRCUIT BREAKER 120 VAC 50 60 Hz Illustration 6 Wiring Schematic for the MD70 15 Control Box HALLMARK REFINING CORPORATION 16 MD70 15 Liquid Transfer Station Specifications for the MD70 15 Liquid Transfer Station 20 L x 14 W x 20H 3 Gallons 39 Ibs 25 6 Gallons 1 8 ft 2 GPM Q 25 ft 15 VAC 60Hz Connections 1 NPTM HALLMARK REFINING CORPORATION 17
16. ter could be plugged See Filter Maintenance The pick up tube inside the tank could be plugged There is an 8 piece of 1 diameter tubing on the elbow inside the holding tank This tubing is cut on the bias so it can lie on the floor of the tank and prevent debris from being sucked into the pump inlet line If this tubing is removed for cleaning it MUST be replaced and angled toward the bottom of the tank Is Iron Out being used on a regular basis It is recommended that one cup of ron Out be pre mixed with one gallon of water and poured down the sink This should be done weekly Refer to the Instructions for Using Iron Out in Photo Lab Applications in this user manual for further instructions The float switches may be dirty blocked or detached See Holding Tank Maintenance The red handled ball valves may have been left closed after last maintenance procedure Make sure they are open Power to the pump station may be connected to a switch and the switch is turned off Breaker at control box or main circuit breaker may be thrown Reset breaker and investigate the cause The discharge pipe should be no smaller than 1 1 2 and no larger than 2 If the pipe is smaller than 1 77 a plumber cannot snake the line If the pipe is larger than 2 too much head pressure is created on the system The pump is making a loud noise The impeller assembly on the pump may be worn and in need of replacement See Pump Head Maintenance
17. ter screen as well as perform any other needed repairs it is recommended that this station be installed with either quick disconnect fittings or short sections of reinforced tubing A receptacle outlet should be installed near the equipment and should be easily accessible Avoid the use of long extension cords HALLMARK REFINING CORPORATION 3 MD70 15 Liquid Transfer Station Installation of the MD70 15 Liquid Transfer Station When installing the MD70 15 Liquid Transfer Station several things should be taken into consideration 1 The MD70 15 Liquid Transfer Station must be soft plumbed Quick disconnects must be installed on all PVC inlet fittings so the unit can be removed for routine maintenance procedures The discharge pipes on the unit must be the proper diameter for the unit to function properly Refer to Illustration 1 for further information The chart indicates the amount of head pressure the pump can accommodate at various pipe diameters Do not exceed these specifications The unit must be installed near an electrical outlet use of extension cords is not recommended As the unit is normally under a sink a GFI outlet is preferred The red handled ball valves and filter screen assembly must be accessible The Y strainer on the MD70 15 Liquid Transfer Station should be cleaned daily for the proper trouble free operation of this unit The discharge pipes from the unit should not contain more than t
18. water and manually removing any sediment build up DO NOT CLEAN THE SCREEN IN THE SINK WITH THE MD70 15 5 Replace the screen in the assembly and snap the retaining cap in place This retaining cap MUST be present or the screen is useless 6 Screw the filter assembly into the Y Strainer housing 7 Reconnect the pump station to the power supply 8 Open the valves that were closed prior to the maintenance procedure and inspect for leaks Holding Tank Maintenance Under certain conditions and particularly after extended use it will be necessary to clean the holding tank Service this using the following procedure 1 Disconnect the pump station from the power supply 2 Close the 1 valve from the holding tank to the Y Strainer see diagram and the 1 valve to the drain 3 Disconnect the pump station from inlet and vent plumbing This will require the help of a plumber if these connections have been hard plumbed The plumber should install flexible tubing or a quick disconnect 4 Remove wing nuts holding the lid to the holding tank and lift the entire lid assembly from the tank The assembly will still be attached to the pump station via the power cord to the pump Use care not to damage the exposed float switches 5 Check the operation of the float switches Clean the switches and the inside of the holding tank An old toothbrush works well 6 Rinse the holding tank of any accumulated sludge like material Use a Wet Dry Vacuum if n
19. wo elbows one of which is included with the unit following the check valve Additional fittings significantly reduce the ability of the pump to perform its job properly Approximately two feet of head can be subtracted for each additional fitting Hallmark Refining Corporation recommends that all pipe entering or exiting the MD70 15 Liquid Transfer Station be Schedule 80 or higher Product 1 Exit Pipe 1 Exit Pipe 2 Exit Pipe MD70RLT 26 Feet 22 Feet 21 Feet 15 GPM 15 GPM 15 GPM MD70RLZT 26 Feet 25 Feet 24 Feet 10 GPM 10 GPM 10 GPM MD100RLT 29 Feet 22 Feet 21 Feet 18 GPM 23 GPM 24 GPM Illustration 1 Specifications for Installing the Liquid Transfer Station HALLMARK REFINING CORPORATION MD70 15 Liquid Transfer Station Operation of the MD70 15 Liquid Transfer Station The MD70 15 Liquid Transfer Station is a pump station used to move liquid from one place to another In the most common case scenario liquid enters the holding tank of the liquid transfer station from a pipe at the sink The holding tank contains three float switches The bottom float switch turns the system off The middle float switch turns the system on and the top float switch activates an alarm that sounds when there is too much liquid in the holding tank When there is enough liquid in the holding tank to cover both the bottom and the middle float switch the pump is activated The pump will continue to run until the liquid
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