Geotech Small Diameter Probe Scavenger with Water Table
Contents
1. gt 5 eo EN BS D Po E e 88 Ola 690 030 870 Ao ila EN eJojoojojlo 5970 4600 6500 7510 5020 5840 Emm 555 ojojo or eo gs el e 2160 1470 1140 lt 3440 4160 4710 5340 180 3110 2450 3400 3640 2680 3120 460 Ww E e 6020 Ep Ba e e eo oj ojoj Iuo es a co eo o ojoj Q e Mii Oj 920 E 5 840 1030 1170 1330 00 850 970 LL 8020 9680 2610 3160 3590 4100 1780 2150 2440 2 760 1110 4850 5870 780 1380 1680 1910 2 1120 1360 1540 1 1980 2160 2520 930 1130 1280 1470 1650 1800 2110 2730 1350 2300 3670 60 Hz Three Phase eo eo 68 5770 1700 2710 1300 2070 Three Wire 4240 3240 N U x1 c co 915 ped bard o Wis eo wor ojojo 1000 1600 2520 590 950 420 680 1500 1070 CO ojojo 60 9 64 ov N 5 500 e e 90 540 ae 5 0 96 34 ejoojojo 050 9 AAA Sj 4810 eoo 410 01091 TAIN H o ol ojjj 02. 14 EXE fen EXTERNAL L1 L2 L3 EXTERNAL POWER SOURCE Figure 2 4 Wiring the 3 Phase Water Pump and the 12VDC Product Pump Motors 14 Wiring 12VDC Product Pump w o Water Pump Wire the product pump motor leads from a PSCAV system through a wellhead junction box optional and attach the leads to positions 4 blue common and 5 orange ground on terminal strip TB2 within a 115 or 230VAC Power Supply enclosure Wire the GECM to the Power Supply by attaching a pair of HOT leads to positions 1 and 2 on TB1 AC power to be converted to 12VDC for the product pump These leads will generally come from labeled relays or terminal strips built onto the back panel of the GECM Attach a ground wire from a designated ground lug to position 5 on TB1 yellow ground Figure 2 5 shows an example of a 115VAC PSCAV wiring diagram for a product pump only 12VDC POWER SUPPLY GECM WELLHEAD JUNCTION BOX B 1 POWER TERMINAL aE BLOCK PRODUCT PUMP NUETRAL FOR 115V GROUND LUG Figure 2 5 Wiring for Product Only pump motor Wire Downwell Probe Run the probe cable leads to a wellhead junction box and then to the GECM control panel Run the cable through the access port on the side of the enclosure and attach its leads to the terminals on the PCB as shown on the GECM Field Wiring Diagram Small Diameter Probe standard mounted to the PSCAV Float function Wires Status Product Blue Red Normally Op
3. ee ee ee ee ee 10000 Viscosity 550 21 prm m MM RIP CF Figure 6 1 Viscosity chart and temperature 28 New PSCAV Specification Sheet System Type Product Only WTDP Ready ETFE Cable Polyamide Gear Set Installed WTDP Power Requirements Voltage __ Phase HP Hz Downwell Probe Y N Part No Connector Attached Y N Intake Assembly Y N Power Supply Y N 120V 230V Winch Assembly Y N Standard Heavy Duty Cable Hose Lengths Power Cord Length ft m Product Only WTDP Ready Discharge tubing length ft m Serial No 1 0 Inspected by 29 Section 7 Winch Assembly and Operation Winch assemblies are available for the SDFS system Mount the winch on the well casing as shown in Figure 7 1 Attach the winch cable to the lift cable on the unit Carefully lower the unit into the well and suspend at the desired level The cable on a standard winch has a rated breaking strength of 2000 Ib 907 kg using the recommended design ratio of 1 to 5 The rated break strength gives a maximum hanging weight of 400 Ib 181 kg Because each application is different it is impossible for Geotech to anticipate the exact hanging weight of your system Hanging weight is the sum of pump weight the weight of all discharge piping and the weight of any water trapped inside the piping Although it is unlikely that you will exceed the 400 Ib 181 kg maximum Geotech
4. Product pumps are available only in 12VDC and are built and installed internally to the PSCAV by Geotech If applicable refer to the GECM Field Wiring Diagram and to the wiring diagrams on the following pages for installation and wiring instructions specific to your system Do not run any power wires within 2 inches 5 cm of intrinsically safe IS wires or terminals Reference NEC Article 508 for relevant codes When wiring to a GECM control panel run the pump power wires through the bottom of the enclosure and attach them to the WATER PUMP and PRODUCT PUMP POWER OUT terminals Attach the ground wire to the chassis grounding lug next to the terminal block Check tightness of terminal screws 11 CONTROL MODULE 12 VDC POWER SUPPLY NETWORK CONNECTIONS TO OTHER PANELS d ery ELECTRICAL SERVICE TANKFULL PROBE AT RECOVERY TANK CONDUIT SEALS el PROBE CONDUIT R CONDUIT SEALS PUMP POWER CONDUIT POWER JUNCTION BOX EXPLOSION PROOF START JUNCTION BOX INTAKE STRAINER PROBE LIFTING RING LEG PRODUCT PUMP CEN WATER PUMP WATER INTAKE hn Figure 2 1 AWTDP ready PSCAV deployed with the optional GECM power supply Tankfull probe and explosion proof accessories Wiring a Single Phase 115 or 230VAC PSCAV with Water Pump and 12VDC Product Pump Motors Wire the water pump motor leads for a single phase 115 or 230VAC motor through a wellhead junction box
5. caustic or alkaline compounds amines hydrazines Dilute Bases Acidic compounds phenols thiols some nitro and sulfonic compounds Organic solvents Non polar compounds such as some organic compounds The use of organic solvents is not recommended because 1 Organic solvents can permeate and or degrade the protective clothing and 2 They are generally toxic and may result in unnecessary employee exposure to hazardous chemicals When in doubt use a dish washing liquid detergent As a decontamination solution it is readily available is the safest of all the above and is usually strong enough if used generously The use of steam can also be effective for decontamination A water lazer pressurized water is exceptionally valuable The following substances are noted for their particular efficiency in removing certain contaminants or for decontaminating certain types of equipment Solution Effective Against Penetone PCB Contamination since penetone may also remove paint it is a good idea to spot test before use Phosphate free detergent Contaminated pumps Ivory liquid Oils Diluted HTH Cyanides Radiac Low level radioactivity Isopropanol Biological agents should not be used on rubber products since it will break down rubber Hexane Certain types of lab or sampling equipment use of hexane is discouraged due to its flammability and toxicity Zep General Purpose cleaning Phosphate free detergent General Purpose cleaning 4
6. optional and attach the leads to labeled terminal strip TB2 within a 115 or 230VAC Power Supply Single phase motor leads from a WTDP ready PSCAV will be black red and yellow ground and will be connected color for color to positions 1 2 and 3 on TB2 Wire the GECM to the Power Supply by attaching a pair of HOT leads to positions 1 and 2 on TB1 AC power to be converted to 12VDC for the product pump and a pair of HOT leads to positions 3 and 4 on TB1 115 or 230VAC single phase power to run the water pump motor These leads will generally come from labeled relays or terminal strips built onto the back panel of the GECM Attach a ground wire from a designated ground lug to position 5 on TB1 yellow ground Figures 2 2 AND 2 3 show examples of 115 and 230VAC WTDP ready PSCAV wiring diagrams Terminal positions are labeled on all GECM back panels and on all Power Supply panels provided by Geotech See the GECM Field Wiring Diagram and the Power Supply diagram for additional wiring instructions Alternatively the water pump power leads can also be run directly to a separate motor starter within the GECM bypassing the Power Supply enclosure all together 12 12VDC_POWER SUPPLY ENCLOSURE 115V WIRING DIAGRAM GECM WELLHEAD JUNCTION BOX POWER TERMINAL BLOCK 72 GROUND LUG CHASSIS GROUND GND p ALTERNATE WIRING Figure 2 2 Wiring the 115VAC 2 Wire Water
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8. 0 530 830 1300 1620 1990 2450 3010 3700 4470 5430 fee Teo hore Too Fest Boso ben roo 00 490 980 1490 1830 2250 2710 3290 3730 4250 fo so fan fcn 670 1020 1250 1540 1850 2240 2540 2890 em AES 840 1030 1260 1520 1850 2100 2400 2700 2950 3440 0 620 760 frao x di AES 2550 o p 0 740 890 1000 1220 1390 1560 4700 1960 0 e 1340 1460 1690 0 930 1060 1190 1300 1510 0 810 920 1030 1130 1310 575V cr SOO Three Wire 3260 4060 650 2520 3140 5830 520 830 1300 2030 2530 3110 1710 430 680 1070 1670 2080 2560 8880 1770 5780 7030 8000 1190 1460 1770 2150 2440 2790 3140 3430 3990 950 1160 1400 1690 1920 2180 2440 2650 3070 800 990 1190 1440 1630 1860 2080 2270 870 1050 1270 1450 1650 1860 2030 2360 o 920 1110 1260 1440 1620 1760 2050 2770 5940 e 460V 60 Hz E 0 0 Three Phase Six Wire 575V 60 Hz 150 Three Phase 175 o 0 700 860 1060 1300 1570 1910 2170 2480 2780 Six Wire 38 62 28V AOE 31VIS 4105 191 501 ZHO9 AOE 10 110 3dd 101 t 10 3dd 560 800 344 10 810 3dd 01056
9. 14 75 JACKET 37 5 cm APPROX 20 51 cm PRODUCT ONLY WTDP READY Inl MODEL MODEL Figure 1 1 Small Diameter Probe Scavenger with Water Table Depression Pump When used with the optional Geotech Environmental Control Module GECM the standard PSCAV system will consist of a downwell assembly that includes a product pump an intake assembly optional a product water probe optional a Tankfull probe optional and a water pump optional Section 8 contains a breakdown diagram of a standard PSCAV unit followed by a list of definitions and part numbers An extended list of optional components is also included Major system components are described on the following pages 4 PSCAVs built for either Product only use WTDP ready with water pump and motor In either case throughout the rest of this manual the term PSCAV will be used to describe the system in general PSCAV Modifications for Diverse Environments For well environments that could cause premature wear to various PSCAV components Geotech can provide limited upgrades to a standard PSCAV to increase the life of the unit For example a PSCAV unit modified for use with chlorinated LNAPL applications will have the following parts replaced Standard part Upgraded part Cable assembly ETFE coated cable Product water Probe Large diameter probes with PTFE coated cables and Stainless steel floats Kevlar gear set product pump Polyamide gea
10. SUBMERSIBLE WATER PUMPS 21 3 YOLOY 901 1 3 ONINNNY YOLOW 1v 1 YOLOW LY I1N3MMno YOLOW LY 1 YOLOW LY 1 uuo 71 66 93 03 wyo 951 071 MOTI3A 034 uo 961 61 uo Z 8 MOTI3A 93 Q38 uwgog gz v gz WYO 11 46 MOTI3A 93 3 uuo g z cc MOTI3A 01 MOVIE uuo yg c 901 X2Y 18 wyo 25 uuo g 01 MOTT3A MOVIE wyo 7 09 WYO 61 61 MOTI3A 01 MOVIE YOLOW LY S3ONVISIS33 YOLOW LV SFONVLSISSY YOLOW LY S3ONVISIS3H YOLOW LV 53 15153 55 355 2 0 2 dHv OvAOCC OVASIIL 53 18 355 1 IVAOEZ VASIL 1 39 9MG 33 11 32 OMG 334 9 30 9 12 S MA 34 76 39 18 302 53 18 355 S MA 334 Figure A 1 39 11 800 3dd 20 810 3dd 040 990 393 14V1S 100 110 3dd 0I 10 3dd 0 800 0 990 DWV 28 2 09 7062 OVA OLE 4702 DVAOSE 437921 01 2 09 40 2 66065706 3NON ayvis avis 10 10 3dd 01 10 3 20 800 3dd 600 800 3dd v0 810 3dd 2502 02 100 990 3dd NIVW dWY 98v 2 09 HOIN 2VAUZ 3701 5 022 7941 6501 ZH09 A0 Z dH S I STIVWAFHL 3215 3504 AV T38l LYVLS dvO LYVIS YOLOW dWNd ATEWISSV LYVHO 335 AVI3H LYVLS 39 LYVH 335 ASSV YOLOW dW
11. can be designated for product only collection from the surface of water within a well It is recommended that you use the PSCAV system to collect product that is acceptable to the internal 100 mesh screen of the intake The Viscosity Chart Figure 6 1 lists all of the products easily recovered with this intake assembly technology If well conditions require something more aggressive then contact your Geotech Sales Representative The intake assembly comes with a unique set of modified worm clamps which allow the intake and probe to be easily attached together on the PSCAV center pipe A 6 15 cm piece of 3 8 poly tubing and brass compression fittings complete the connection Figure 1 3 shows an example of the intake assembly along with a standard probe The stop collar that is just above the Water HI switch must be placed horizontally centered to the weld of the intake screen to maximize product intake from the water surface Downwell Probe The product and water pumps cycle on and off in response to signals sent to the control panel by a level sensing probe Figure 1 3 shows an example of a standard product and water probe which is commonly used with either a WTDP ready PSCAV or a PSCAV with a separate water pump The probe when properly attached to the optional intake assembly uses float actuated switches to assure that the product pump delivers hydrocarbon only The Product float must be suspended in hydrocarbon for the product pump
12. cartridge or damage the water pump degrading their performance e Never run the product or water pump dry for more than 5 seconds at a time Position the water pump so that the intake is no closer than 1 30cm from the bottom of the well Inspection Inspect the SDFS unit and accessories upon arrival If any items are missing or damaged make note of this on the shipping papers and immediately notify your Sales Representative at Geotech Also in preparation for installation remove any shipping straps and cable ties from around the intake float cartridge prior to deployment System Wiring Throughout the wiring procedures described below refer to the site installation drawing in Figure 2 1 the various wiring diagrams within this section and to the separate Field Wiring Diagram provided with your GECM control panel All wiring must be carried out by a qualified electrician and be in accordance with the state and local codes Conduit runs must conform to Article 501 5 of the 1990 National Electrical Code NEC Install GECM In preparation for installation mount the GECM control module under cover to protect the unit from the elements Power must be disconnected and locked out at the panel or services before any installation procedures are attempted Wiring Product and Water Pump Connections The PSCAV system can be ordered with a variety of Grundfos water pumps attached These pumps are operated with single and three phase motors
13. highly recommends that you take the time to calculate the hanging weight of your system before deployment Use the following procedure to calculate hanging weight 1 2 Weigh your pump assembly including the intake and any attached probes The weight of the discharge piping can be calculated by weighing a sample length and multiplying by the number of feet suspended in the well For example 1 5 ID rubber hose weighs approximately 1 Ib 45 kg per foot 3 Therefore 100 30 m of this hose will weigh 100 165 45 kg The weight of the water in the discharge piping can be estimated by calculating the volume of water in the piping and then converting the volume to weight as follows Volume in gallons Volume in x x inside radius of pipe in x length of pipe in Gallons 0 00433 x Volume in3 1 Gallon water 8 325 lbs Weight of Water Ibs 2 8 325 x Gallons Volume in liters Volume cm inside radius of pipe cm P x length of pipe cm Liters 2 0 001 x Volume cm 1 Liter water 1 kg Weight of Water kg Total number Liters Find the sum of the pump weight piping weight and water weight This sum will provide a close approximation of the total hanging weight If the total hanging weight approaches or exceeds 400 16 181 kg then contact Geotech to discuss an optional winch cable with an increased break strength rating 30 15 5 39 4 cm 10 4 26 4 Hand
14. message WARNING A raised hand icon indicates CAUTION information that relates to a situation or condition that could lead to equipment malfunction or damage You should not proceed until you read and thoroughly understand the CAUTION message CAUTION A note icon indicates NOTE information Notes provide additional or supplementary information about an activity or concept NOTE READ THE FOLLOWING CAUTIONS amp SUGGESTIONS BEFORE PROCEEDING The Small Diameter Probe Scavenger is a sophisticated piece of equipment which must be installed operated and maintained according to the procedures described in the system manual Failure to follow these procedures or to observe the cautions included in this manual may result in personal injury and will void the Standard Equipment Limited Warranty Installation Do deploy the PSCAV until the well has been developed by qualified personnel Silt and grit can damage the water pump and degrade its performance e Before deploying the system in the well briefly test the water pump by turning the control switch to HAND Do not run the water pump dry for more than 5 seconds at a time e Mount your GECM or other control panel under cover and in a location where it will never be submerged in water e All system wiring is to be carried out by a qualified electrician For systems using a GECM or other control panel with an integrated Tankfull probe the PSCAV system will not run when the Ta
15. to run Once the Product float reaches the upper switch the product pump will turn on until the float magnet falls back below the switch This assures that the product pump only runs when sufficient hydrocarbons are present in the well The next float HI LO Water is buoyant in water only and disables the product pump when it reaches the Water High switch This prevents the product pump from running if the hydrocarbon water interface in the well rises to the level of the product pump intake PRODUCT WATER PROBE ATTACHED TO INTAKE ASSEMBLY INTAKE ASSEMBLY STRAINER N EA TM PRODUCT SWITCH WELD m P PRODUCT FLOAT width of stop collar BLUE WATER HIGH SWITCH ai WATER LOW SWITCH B WATER HI LO FLOAT INTAKE HOUSING onm ORANGE STOP COLLAR OVERRIDE SWITCH cat OVERRIDE FLOAT ORANGE Figure 1 3 Intake assembly with downwell probe The water pump is controlled by the Water HI LO and Override floats The water pump turns when the Water HI LO float rises to the top of its travel The pump continues to run until the float falls to the bottom of its travel If a probe fault should cause the pump to continue running the Override float will fall and shut off the pump The stop collar that is just above the Water HI switch must be placed horizontally centered to the weld of the intake screen to maximize product intake from the water surfa
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17. 1 Decontamination Solutions to Avoid Some decontamination solutions should be avoided because of their toxicity flammability or harmful effects to the environment Halogenated hydrocarbons such as carbon tetrachloride should not be used because of their toxicity possible incompatibility and some because of their flammability Organic decontamination solutions should not be used on personal protective equipment PPE because they may degrade the rubber or other materials comprising the PPE Mercurials are sometimes used for sterilization They should be avoided because of their toxicity Chemical leaching polymerization and halogen stripping should be avoided because of possible complications during decontamination Sand blasting a method of physical removal should be avoided because the sand used on the contaminated object usually needs to be disposed of as hazardous waste a very costly proposition Also sand blasting exposes personnel to silica a carcinogen Freon is known to be particularly effective for the cleansing of PCB s but its effect on the ozone layer is extremely harmful Its use is discouraged Strong acids or bases should not be used when cleaning metals and gaskets or tools or other equipment because of the possibility of corrosion Disposal of Decontamination Solutions and Waste Water All solutions and water used for decontamination must be collected If lab analysis indicates that the water and or solution
18. 506 m dv oz28v X AOS 915 0105 OVAO Z 2 09 27062 dHr i 85 0334 290 800 309 190 010 399 S CNY SL GV noez auz i 3191 anos niz es 2 09 1 901202 1 00 100 3dd 660 10 344 9 0 800 3dd 910 810 3dd dA 28V ASIL dHZ 1 AVIS 5 ZH09 ASIL dHZ 1 801002 00 10 34 860 10 344 180 800 399 6902802 NV GL OGY uvis aros 2 062 5 ZHO9 AO Z 1 60 90 34 i at 958 ASHI 5 anos QVASHE 3716 6561 Hdl ZH09 ASIL AVTIM 1415 MdOllOVdVO LYVLS 355 210 02 ASSV 307 35 3 1 2 335 3502 375 3505 X08 1415 4 1 2 335 13 5 2101802 800550 5 ATENISSV 0905 YMOd 0909 YMOd SNIGNM LYVLS MOVIE 1 Kowa 910 400 90151534 03318 LYVHO 335 LYVLS 1 33S ASSY MOLOW dMWnd 1229005 YMOd Bl OL DA 3OMnOS YIMOd Bl AO C OL 1 3 2 YOLOY 201 1 3 02 30104 7201 DWV 155 dWY 09 LNIYYND SOLOS 3201 91 8 7 LNIYYND NINNNY 9 1 3 ININNNY dWv 8 96 1 2 S E 07 START BOX SCHEMATICS FOR 60Hz DEEP WELL
19. EVLAR PRODUCT PUMP 16100001 5 INTAKE ASSY FOR PSCAV 2240023 6 CONN INTAKE SST ORS698001 7 PROBE TOP CLAMP ASSY 2240014 8 PROBE BOT CLAMP ASSY 2240020 9 INTAKE COMP FTG CLAMP 2240015 10 CHECK VALVE SST 1 4 1 2 5 PSI CRACKING PRESSURE PPP006032 CHECK VALVE 3 8 NPT VITON SEAT ACETAL BODY SST SPRING 006003 11 NIPPLE SS 25 xCLOSE PPP009100 BUSHING SS4 375 x 25 PPP012057 12 CMPRSN BRS 3 8x1 4MPT PPP019002 13 HOSE NYL 375 OD 05 WALL PPP001051 14 CAP WATER JKT SS 3 50D ORS689002 15 BOLT SS8 1 4 20x2 EYE FORGED PPF067003 16 WATER JACKET SS 16 WTDP READY ORS689001 17 WATER JACKET 16 3 8 00290 18 PLUG SST 1 4 MPT SQ HD PPP038014 19 WELDMENT CABLE EXIT SDFS ORS758002 20 NIPPLE SS4 1 5 x24 009102 21 COUPLING SS4 1 5 x1 BAR STOCK ONLY PPP021036 22 QDISC BRS 1 Mx1 FNPT PPP007041 23 NIPPLE SS 1 x3 PPP009093 33 Figure 8 2 Upgraded system with ETFE power cord polyamide gearset and a larger probe with SS floats 34 Components for modified units Item Part Description Part Number 24 CABLE 14 4 ETFE YELLOW 00357 KIT GEAR SET MP POLYAMIDE PRODUCT PUMP 16100002 PROBE DENS WATER W FEP 2005 56120001 25 PROBE DENS PRODUCT W FEP 2005 56120002 FLOAT SS 938G WATER ORS190004 FLOAT SS 60 SG 1 0 DIA PRODUCT ORS190005 26 CLAMP SS3 WORM GEAR 65 89MM 11400007 27 See Appendix A for available water pumps Additional Parts and Accessories Part D
20. Nd 016 2 NOLOY LNIYYNI YOLON LY 1NIYYNI 12 29 0 03 uuo 52 9 Xov YOLOW LV 530 15153 ATENISSY OVAOEZ dHZ SNIGNM LYVLS 6 30 33 QILVNAHIS dH 2 SNIONM NIVH M 910 400 3dd MO1SIS34 03318 1 2 335 LYVLS 000 610 344 0153 3940 LYVHI 33S TIWNYFHL LYVLS 335 NIVW 6200102 ASSY YACIOH 3504 33S 3Sf LYVHO 33S dVO NNY LYVHO 33S AV I3M LYVLS ASSY YOLOW dWNd 006 LNIYYND YOLOY 32071 dWv L6 1 ININNNY YOLOW 1v 1 uuo 68 279 MOTI3A 93 Q38 wyo 6 5 01 xov 18 YOLOW LY S3ONVISIS3H ATEW3SSV OVAOFZ 01 39 ONIMVSJO 434 OLLVWAHOS dH GT 10 15 SNIONM NIVH lt 910 00 40151534 03318 LYVHI 33S dVO 14 15 33 NIVW 100 lt 0 34 0153 3991 Figure 2 40 START BOX SCHEMATICS FOR 60Hz DEEP WELL SUBMERSIBLE WATER PUMPS Appendix Decontamination Procedures Some common decontamination solutions are listed below along with the contaminants they are effective against Solution Effective Against Water Short chain hydrocarbons inorganic compounds salts some organic acids other polar compounds Dilute Acids Basic
21. Pump and the 12VDC Product Pump Motors 12VDC_POWER SUPPLY ENCLOSURE 230V WIRING DIAGRAM GECM POWER TERMINAL 21 BLOCK WELLHEAD JUNCTION BOX ALTERNATE WRING Figure 2 3 Wiring the 230 2 Wire Water Pump and the 12VDC Product Pump Motors 13 Wiring a Three Phase PSCAV with Water Pump and 12VDC Product Pump Motors Wire the water pump motor leads for a three phase 230VAC motor through a wellhead junction box optional and attach the leads to T1 T2 and T3 of an appropriate start box or to a motor starter labeled WTDP within the GECM Wire the GECM to a 230VAC Power Supply by attaching a pair of HOT leads to positions 1 and 2 on TB1 AC power to be converted to 12VDC for the product pump These leads will generally come from a labeled relay or terminal strip built onto the back panel of the GECM Figure 2 4 shows an example of a 230VAC three phase WTDP ready PSCAV wiring diagram Terminal positions are labeled on all GECM back panels and on all Power Supply panels provided by Geotech See the GECM Field Wiring Diagram and the Power Supply diagram for additional wiring instructions An 115VAC Power Supply can also be used if the GECM has an appropriate transformer installed 12VDC POWER SUPPLY peace B 1 l 120 1A B 1A GECM POWER TERMINAL LELI lis ES BLOCK PRODUCT PUMP V MOTOR STARTER GROUND LUG T3
22. Qeotecr Small Diameter Probe Scavenger with Water Table Depression Pump Installation and Operation Manual Rev 2 28 2013 Part 10438 TABLE OF CONTENTS Section 1 System Description 32 er et Do v ata auc 3 TIeoIy 3 Systeri COIbponelils Ide 4 Section 2 System x expen Eo A i 11 Section 3 System Operation 20 Section 4 System Maintenance 22 Section 5 System Troubleshooting 24 Section 6 System Specifications c uos io ape Gen rete 28 Section 7 Winch Assembly and Operation eene enne 30 Section 8 Replacement Parts and Accessories 04 7 32 Appendix A Submersible Water Pumps Hmmm 36 Appendix B Decontamination Procedures eee 41 Warranty Equipment Return and seed etu ee it cox tec 44 DOCUMENTATION CONVENTIONS This manual uses the following conventions to present information An exclamation point icon indicates a WARNING of a situation or condition that could lead to personal injury or death You should not proceed until you read and thoroughly understand the WARNING
23. TIFIER SS TRANSFORMER Es e pL F SNUBBER e F1 e F2 FUSES CAPACITOR TB1 TERMINAL STRIPS TB2 919191919 919191919 OISISISISISIO 0 9 6 9 9 6 0 12345 12345 Figure 1 6 Example of the components to 230VAC to 12 power supply Hoses 100 30 m of 3 8 nylon hose for attachment to the discharge tube fitting is provided with each PSCAV system built Additional discharge hoses and fittings supporting both product and water pump use can be obtained from Geotech also Additional Accessories A variety of options and accessories are available to the PSCAV system including globe valves and flow meters Refer to the section on System Accessories for a list of parts provided to the PSCAV system A larger selection of accessories can be found in the Geotech catalog 10 Section 2 System Installation The PSCAV system must be installed operated and maintained according to the procedures described in this manual Failure to follow these procedures or to observe the Warnings and Cautions included in this manual may result in personal injury and will void the Standard Equipment Limited Warranty e Do not deploy any pumps until the well has been developed by qualified personnel Excessive silt and grit can clog the intake float
24. able is considered to be jacketed cable Maximum lengths shown maintain motor voltage at 95 of service entrance voltage running at maximum nameplate amperes If service entrance voltage will be at least motor name plate voltage under normal load conditions 50 additional length is permissible for all sizes This table is based on copper wire If aluminum wire is to be used it must be two sizes larger Example If the table calls for 12AWG copper wire 1OAWG aluminum wire would be required The portion of the total cable length which is between the supply and single phase control box with line contactor should not exceed 25 of the total maximum allowable to ensure reliable contactor operation Single phase control boxes without line contactors may be connected at any point in the total cable length 36 Lengths represent a 5 voltage drop 3 is required multiply by 6 for maximum feet Contact manufacturer for 75 C or 90 C cable lengths The portion of the total cable between the service entrance and a 30 motor starter should not exceed 25 of the total maximum length to assure reliable started operation Use of smaller than recommended cable voids warranty can cause failure of the motor to start and operate properly and may cause cable overheating Three Phase Cable 60 Hz Service Entrance to Motor Maximum Length in Feet Motor Rating 12 Three Wire 10 Copper Wire Size 3 MCM Copper Wire Size 0
25. ailure Installation can be carried out without removing the downwell pump assembly from the well The backup checkvalve will consist of a white Acetal valve two stainless steel reducer bushings and two brass compression fittings This specific valve is not interchangeable with the checkvalve installed on the unit and is mounted as a back up only Contact your Geotech Sales Representative for these parts when a backup checkvalve is needed To install an inline checkvalve oU RON Cut the nylon discharge line at a convenient accessible location next to the well head Thread the stainless steel reducer bushings into the valve ends using PTFE tape on all male threads Orient the valve so that the arrow points in the direction of fluid flow Thread the compression fittings into the reducer bushing using PTFE tape Insert the cut ends of the discharge line into the compression fittings and tighten 3 8 TUBE x 1 4 MPT JI EFRSENNIPPEE COMPRESSION FITTING PSCAV CHECKVALVE FLOW 3 8 x 3 8 CHECKVALVE STAINLESS STEEL INLINE BACKUP 3 8 MPT x 1 4 FPT REDUCER 3 8 TUBE x 1 4 MPT CHECKVALVE gt COMPRESSION FITTING 3 8 x 3 8 FPT CHECKVALVE WHITE Acetal Figure 4 1 Parts configuration for standard and back up checkvalves 23 Section 5 System Troubleshooting These procedures are meant to be carried out by personnel qualified to work on electrical circuitry If in doubt obtain the services o
26. ase motors only Remedy 1 Open valve 2 Locate blockage and clear 3 Reverse any two of the three power legs at the connection between the water pump power cord and the control panel Problem Product Pump Performs Poorly Cause 1 The product pump motor is running backwards 2 Voltage drop caused by long wire runs 3 Product pump is worn from pumping grit and debris Remedy 1 Check the Field Wiring Diagram supplied with your GECM and confirm that the product pump is not wired backwards 2 Increase gauge of pump power wires if runs are longer than approximately 100 30 m 3 Remove pump from well and check gears for wear Pressure test the pump for discharge head capability see Figure 1 2 for pump performance curve If gears are worn pump head must be replaced by a Geotech technician 26 Tankfull Probe 1 The following applies to control panels with a Tankfull receptacle As a safety measure systems with an integrated Tankfull probe will shut down when the probe is disconnected or the cable is cut Normally Closed connection Simulates that the Tankfull float is down Pump will run Removing the B jumper connection will simulate a Tankfull float up Shuts pump off One common problem with the Tankfull probe not working is the float being installed upside down after cleaning Figure 5 1 8 pin Tankfull Probe receptacle 27 Section 6 System Specifications
27. bar and 105 PSI 7 2 bar or greater 90 6 2 bar to 95 PSI 6 5 bar is therefore the maximum pressure obtainable depending on the viscosity of the hydrocarbons being pumped Factors that may reduce decoupling pressure and therefore reduce maximum output pressure include temperatures above 75 F 24 C high fluid viscosities abrasive fluids and pump wear Once decoupling has occurred the pump and motor can be recoupled by completely stopping and then restarting the unit Product Pump Performance Curves Normal Decoupling Pressures 70 degrees F water 80 Decoupling Zone above 110 PSI Flow GPH 0 10 20 30 40 50 60 70 80 90 100 110 120 130 PSI Range Figure 1 2 1 Product Pump performance curve gallons per hour PSl Product Pump Performance Curves Normal Decoupling Pressures 21 degrees C water 160 140 120 Decoupling Zone 400 above 7 6 BAR 80 Flow LPH 60 40 20 0 1 2 3 4 5 6 7 8 9 10 11 12 13 BAR Range Figure 1 2 2 Product Pump performance curve liters per hour BAR System Accessories The following accessories must be ordered separately from the basic PSCAV system Refer to Section 6 of this manual for a listing of available accessories for your PSCAV system Water Pump A set of HI and LO water sensors are located on the downwell probe see Figure 1 3 These sensors indicate the water level during installation and operation When
28. ce All probe wiring is rated Intrinsically Safe for Class 1 Div 1 Group D hazardous locations Tankfull Probe A second probe is used to shut off the product pump if the product recovery tank becomes full This tankfull override probe Figure 1 4 is a float actuated level sensor installed in the top of the recovery tank When used with a GECM or other control panel the PSCAV system will shut down whenever the Tankfull probe is disconnected or the line is cut RELIEF Sass 2 NPT BUSHING 7 5 19 HILEVEL SWITCH MAGNET 4 375 11 cm TANKFULL FLOAT BLUE Figure 1 4 Tankfull Probe Assembly Junction Boxes To facilitate the wiring of the PSCAV system Geotech offers ready to install power and signal junction boxes Figure 1 5 The optional junction boxes contain terminal strips that allow the PSCAV cable assembly and downwell probe cable to be joined to customer installed conduit enclosed wire runs from the well head Explosion proof junction boxes can be provided as shown in Figure 1 5 items A and C or terminal connections can be housed within a NEMA 4 junction box item B Figure 2 1 contains a generic example of a common site installation showing power and signal junction box placement STRAIN RELIEF 3 4 EXPLOSION PROOF JUNCTION BOX WITH RECEPTACLE Figure 1 5 Junction boxes availabl
29. e for use with the PSCAV system A Explosion proof power junction box B NEMA 4 signal junction box C Explosion proof junction box with receptacle Refer to the System Accessories section for part numbers Product Pump 12VDC Power Supply Power Supply s are used to operate the 12VDC product pump motors built into the PSCAV system An 115VAC or 230VAC Power Supply is available from Geotech Power requirements are dependent on either the main power or an installed transformer within the GECM A Power Supply is designed to receive two power leads from the GECM HOT and NEUTRAL for 115VAC or two HOT leads for single phase 230VAC The voltage is then converted to 12VDC with an average output of 14 5VDC for product pump operation Figure 1 6 shows an example of a 230VAC to 12VDC Power Supply panel Each panel comes housed in a NEMA 4 enclosure with labeled terminal strips A wiring diagram can be found the inside cover of the enclosure Power Supplies should be installed as near to the well as possible to reduce DC line loss between it and the product pump Two AC power wires will then run from a relay or terminal strip within the GECM to terminal strip TB1 on the Power Supply panel Single phase motors can be wired through the Power Supply box or directly to a motor starter within the GECM Three phase water pump motors are wired directly to a designated motor starter within the GECM bypassing the Power Supply e e BRIDGE REC
30. en NO Water High Blue White NO Water Low Blue Black Normally Closed NC held open by float Water Override Green Orange NC held open by float ground or casing 15 Large Diameter Product Probe mounted to the PSCAV Float function Product Water High Water Low Water Present continuity function Wires Green Orange Blue amp Yellow White Blue amp Yellow Black Blue amp Yellow ground or casing Large Diameter Water Probe shipped separately Float function Water High Water Low Water Override Water Present continuity function GECM PANEL CONNECTIONS ORANGE Wires Blue amp Yellow White Blue amp Yellow Black Green Orange Blue amp Yellow ground or casing PRODUCT WIRED WATER HIGH WIRED N O WATER LOW HELD OPEN WATER OVERRIDE NC HO PROBE WIRING WIRED WTDP Status NO NO NC held open by float Status NO NC NC PROBE SCAVENGER WATER PUMP PROBE PRODUCT SWITCH PRODUCT FLOAT BLUE WATER HIGH SWITCH WATER LOW SWITCH WATER HI LO FLOAT ORANGE OVERRIDE SWITCH OVERRIDE FLOAT ORANGE Figure 2 6 Wiring a standard PSCAV Downwell Probe to a GECM requires Field Wiring Diagram Wire Tankfull Probe After mounting the Tankfull probe in the product recovery tank run the probe cable through the access port on the upper side of the GECM enclosure and attach the leads to a designated IS terminal strip on
31. escription Part Number POWER SUPPLY 115V 12V 2391055 POWER SUPPLY 230V 12V 2392055 ASSY WINCH STD DUTY 71FT 1000LB MAX 2020005 ASSY WINCH HEAVY DUTY 110FT 2500LB MAX 2030001 JUNCTION BOX SIGNAL 2390065 JUNCTION BOX XP 2390066 POWER RECEPTACLE ASSY 115V EP 1011907 POWER RECEPTACLE ASSY 230V EP 1022903 TANKFULL PROBE 25 NO CONN 2390073 TANKFULL PROBE 2005 56020009 MANUAL TEST KIT HYDROCARBON VISCOSITY 26030020 TEST KIT HYDROCARBON VISCOSITY 86020001 MANUAL GECM 16110163 MANUAL SD PROBE SCAVENGER WTDP READY 10438 35 Appendix A Submersible Water Pumps Refer to the installation and operation manuals included with your pump and motor The following pages will include cable and motor specifications as well as start box schematics Two or Three Wire Cable 60 Hz Service Entrance to Motor Maximum Length in Feet Motor Rating AWG Copper Wire Size 0000 Lengths without the asterisk meet the U S National Electrical Code for either individual conductors or jacketed 60 C cable Lengths marked meet the NEC ampacity only for individual conductor 60 C cable in free air or water not in conduit If cable rated other than 60 is used lengths remain unchanged but the minimum size acceptable for each rating must be based on the NEC Table column for that temperature cable Flat molded c
32. f a qualified electrician Getting Help e Read the entire manual and become thoroughly familiar with all system components before intitiating any of the following troubleshooting procedures e the troubleshooting procedures in this section indicate a component failure prepare a written list of all problems encountered while operating the equipment then call Geotech Environmental Equipment for assistance Service Locations Geotech Field Service personnel are trained on all aspects of the equipment and are dedicated to helping you maximize the efficiency and cost effectiveness of your PSCAV system For technical support call our Geotech Service office Geotech Environmental Equipment Inc 2650 East 40 Avenue Denver CO 80205 Toll Free Phone 800 833 7958 Commercial Phone 303 320 4764 Fax 303 322 7242 www geotechenv com Troubleshooting Procedures In the process of troubleshooting it may be necessary to open the GECM control panel In such cases always disconnect the power before proceeding Avoid shorting any power to the PCB or PCB cover Since all probe wiring is rated Intrinsically Safe probe connectors may be disconnected from their receptacles without disconnecting the power Troubleshooting the PSCAV is primarily a matter of checking the function of the intake strainer and the probes The is designed to be maintenance free The water pump motor is factory sealed with no field replaceable parts Before p
33. hould be valved to approach continuous operation while maintaining the desired water level E Adjust the position of the downwell assembly as explained in Section 2 8 Start the product pump by turning the PRODUCT PUMP CONTROL switch to AUTO If the product float is up and H2O Hi is not product pump will start Once startup has been achieved the PSCAV system should function automatically Refer to the GECM User Manual for details of control panel operation 20 GECM Display Messages for the PSCAV The following display messages are common to the operation of a WTDP ready PSCAV system PSCAV Displays Line 1 messages HAND Px 20 ORx AUTO Px 20 ORx AUTO TANKFULL condition AUTO OVERRIDE fault AUTO PROBE FAULT fault Line 2 messages PRODnnnn H20nnnn Where high M middle or L low nnnn ON OFF or HAND The Px 20 ORx portion of the display is representative of the fluid as read by the float positions along the probe represents the product level within the reservoir 2 represents the position of the water float ORX represents the override float Multiple PSCAV Systems Line 1 messages PSCAV SYSTEM PSCV TANKFULL condition PSCV OVERRIDE fault PSCV PROBEFAULT fault Line 2 messages PRODnnnn H20nnnn Where 1 2 3 4 PSCAV number nnnn ON OFF HAND Additional Messages for Multiple PSCAV Syste
34. inants equipment was exposed to and decontamination solutions methods used Geotech reserves the right to refuse any equipment not properly decontaminated Geotech may also choose to decontaminate equipment for a fee which will be applied to the repair order invoice 44 Geotech Environmental Equipment Inc 2650 East 40 Avenue Denver Colorado 80205 303 320 4764 e 800 833 7958 e FAX 303 322 7242 email sales geotechenv com website www geotechenv com
35. ing between receptacle sockets A and B If the pump runs on HAND with the Tankfull disconnected then the problem is most likely a faulty Tankfull probe or cable 3 Itis also possible that the recovery tank is just full or that the float on the probe has been re installed upside down after being cleaned 4 Ifthe problem is not in the GECM or Tankfull probe then a faulty product pump motor or cord should be suspected Remove the pump assembly from the well move it and the GECM to a non hazardous location and check the pump operation and its power cord A faulty product pump motor should be replaced If the pump will not run after carrying out these procedures the wiring or the pump motor itself may require repair or replacement Call your Geotech Sales Representative for assistance 25 Problem Pump Runs HAND but not AUTO Cause The most likely source of trouble in the AUTO mode is a probe circuit fault or a bad connection at the wellhead junction box Remedy 1 Usea continuity meter to check probe connections at the panel or at the terminal strip inside the wellhead junction box If no bad connections are found proceed as follows to determine if the probe fault is in one of the probes or in the panel s control circuitry 2 If the probe is faulty then call Geotech for assistance Problem Water Pump Runs Dry Cause 1 Discharge valve is closed 2 Discharge hose kinked or blocked 3 Pump motor is running backwards 3 ph
36. le Radius 13 0 33 0 cm 17 5 44 5 cm 25 2 64 0 cm Well Casing Note Winch is 9 22 9 cm wide with handle attached Figure 7 1 Standard winch assembly attached to well head 31 Section 8 Replacement Parts and Accessories This section lists standard components and optional accessories supporting a PSCAV system and the upgraded ETFE PSCAV Additional accessories and fittings not listed can be found within the Geotech catalog Water pump requirements can be obtained from your local Geotech Sales Representative PUMP END MOTOR PRODUCT PUMP WITH GEAR SET AND SS TUBING INSIDE WATER JACKET Figure 8 1 Standard PSCAV system components 32 ltem Part Description Part Number 1 ASSY CABLE PRODUCT PUMP 100 FIELD REPLACEABLE 2104100 2 ASSY CABLE WTDP 100 FIELD REPLACEABLE 2104101 3 STRAIN RELIEF NYL 3 4 NPT 10519 4 PROBE ASSY SD 50 2390056 4 PROBE ASSY SD 100 2390072 4 PROBE SM DIA COND 25 2005 56120003 4 PROBE SM DIA DENS 100 2005 56120009 4 PROBE SM DIA DENS 25 2005 56120010 4 PROBE SM DIA COND 100 2005 5612001 1 4 PROBE SM DIA DENS 50 2005 56120013 ASSY WATER FLOAT SM DIA 2020101 PRODUCT FLOAT ASSY SM DIA 2020102 PRODUCT PUMP MOTOR ASSEMBLY 2020104 TUBING SS4 3750Dx1 625 ORS090008 KIT GEAR SET MP K
37. ms PSCAV LEVELS fault OVERRIDE PSCAV LEVELS fault PROBE FAULT PSCAV EVELS 20 OR Where 1 2 3 4 PSCAV number high middle or L low 21 Section 4 System Maintenance Clean Intake Strainer The intake is a two stage strainer that can easily be disassembled for cleaning This should be done periodically to insure that the product pump will not run dry Time elapsed between cleanings will depend upon well conditions In the event that frequent strainer cleanings are not considered a cost effective maintenance procedure the inner 100 mesh strainer can be removed By using MPT FPT threaded reducer bushing the 60 mesh outer strainer can be used alone However the long term effects on the product pump must be considered when the 100 mesh inner strainer is not used Pumping damaging debris will quickly diminish the performance of the pump gears lead to the need for pump repair or replacement and increase the overall down time of the system With proper usage and servicing the two stage intake strainer should substantially increase the life of the pump 4 It is recommended that you use the PSCAV system to collect product that is acceptable to the internal 100 mesh screen of the intake see also the Viscosity Chart in Figure 6 1 If well conditions require something more aggressive then contact your Geotech Sales Repre
38. nkfull probe is cut or disconnected Section 1 System Description Function and Theory The Small Diameter Probe Scavenger PSCAV built with a Water Table Depression Pump WTDP is an automatic pumping system designed to simultaneously recover water and hydrocarbons A specially designed probe differentiates between hydrocarbons and water allowing for retrieval of virtually 100 water free oil The water pump creates a cone of depression in the well drawing in the hydrocarbons that contaminate the surrounding groundwater The product pump then recovers the hydrocarbons floating on the water and pumps them into a product recovery tank When the tank becomes full an optional Tankfull probe can be used to shut down the product pump to prevent overflow The PSCAV can be built for product only applications where a separate WTDP pump may be installed or when there isn t a need for a water pump Figure 1 1 is an example shown attached to the WTDP ready unit in this diagram of both units the water pump and motor is not DOWNWELL MODULES 4 SDPSCAV 3 5 OD 9 cm OD i DISCHARGE FITTING POWER CORD ___ PROBE SIGNAL CABLE PRODUCT __ DISCHARGE TUBING APPROX f 40 101 6 cm PRODUCT WATER APPROX PROBE 50 127 cm INTAKE ASSEMBLY APPROX 15 5 39 4 cm LIFTING RING CHECKVALVE H PRODUCT PUMP WITHIN WATER
39. ole may be required 18 INTAKE DISCHARGE TUBE PROBE COMPRESSION FITTING Ld ES Figure 2 8 Location of Discharge Hose Section 3 System Operation System Startup Verify product discharge line is securely connected to the product recovery containment vessel Before starting the pump read your GECM control panel manual and become thoroughly familiar with all panel controls and indicators Proceed as follows to start the system 1 Visually inspect all power wire terminations are tied down and no loose wire ends are left unterminated 2 System pre check and deployment are complete 3 Turn all Hand Off Auto switches to OFF 4 Apply power to system through on site breaker or integrated disconnect 5 Open the water pump discharge valve completely by turning it counter clockwise 6 Turn the WATER PUMP CONTROL switch to AUTO The water pump side of the system should be purged if free phase hydrocarbon is present in the well at deployment To do this place the output hose in a suitable container and run the pump on HAND until the water runs clear Dispose of purged hydrocarbon according to local codes 7 With the water pump running on AUTO establish a pumping level and throttle down the outflow by adjusting the discharge valve Reduce the rate of pump cycling as far as possible without going below the minimum flow rate recommended by the pump s manufacturer Ideally the pump s
40. r set PTFE check valve SS check valve These upgrades can provide longer life to the operational parts on the PSCAV Discuss the possible need for any modifications to your PSCAV system with your Geotech Sales Representative System Components Product Pump The Geotech product pump with motor is a magnetically coupled gear pump system that operates on 12VDC The product pump turns on and off in response to signals sent to the GECM by an attached conductivity density probe and a second separate Tankfull probe Descriptions of these probes can be found later in this section The following chart represents a Gallons per Minute GPM per PSI Pounds per Square Inch average for the product pump However flow results can vary for a variety of reasons i e new gear set worn gear set worn motor bushings line loss or low voltage to product pump motor An example of the Product Pump performance curve is shown in Figure 1 2 PSI Range GPM LPM Flow Rate Amps Open flow 77 2 9 2 30 20 PSI 1 4 bar 7212 7 3 00 40 PSI 2 7 bar 70 2 6 3 70 60 PSI 4 bar 66 2 5 4 45 65 PSI 4 5 bar a functional product pump motor will stay under 5 amps at 65 PSI 4 5 bar 80 PSI 5 5 bar 61 2 3 5 10 100 PSI 6 9 bar a product pump motor will decouple between 95 PSI and 105 PSI 6 9 bar Test results were obtained using a Geotech Power Supply with an average output of 14 5VDC The product pump is designed to decouple between 95 PSI 6 5
41. roceeding with this section refer to the troubleshooting section of your GECM User Manual Possible malfunctions are listed as follows 24 Problem Water pump running but no water delivered Cause 1 Discharge valve closed 2 Discharge hose kinked or blocked 3 Pump motor running backwards 3 phase motors only 4 Debris clogging intake 5 Cut wire Remedy 1 Open valve 2 Locate blockage and clear 3 Reverse any two legs at the connection between the pump power cord and the control panel 4 Pull unit and inspect all wiring Problem Product pump will not run on AUTO runs dry on HAND Cause 1 The intake is plugged with debris 2 The product pump is mounted too low with respect to the intake 3 The pump has decoupled from the motor Remedy 1 Remove the pump assembly from the well disassemble the intake and clean the 100 mesh intake screen 2 Remove the pump assembly from the well and confirm that the HI Product switch on the Downwell Probe is positioned above the weld on the product pump intake screen see Figure 1 3 3 Refer to Figures 1 2 1 and 1 2 2 and confirm that the output pressure generated by your system does not exceed the decoupling pressure of the pump Problem Pump will not run on HAND or AUTO Remedy 1 Confirm that power is reaching the GECM or other control panel 2 If power is reaching the GECM then check for a faulty Tankfull probe by unplugging its connector at the GECM and jumper
42. s exceed allowable contamination levels they must be treated as hazardous waste Alternatively the solutions and water may be treated on site to lower the contamination levels and render them non hazardous Containers such as 55 gallon drums should be available for storage of wastes Spent decontamination solutions can be collected by using heavy duty plastic sheets visqueen sheets kiddie pools or if needed a larger containment basin The decontamination of equipment must be performed on the sheets or in the basins They could be placed on a slight angle so that the spent decontamination solutions drain into a collection basin or drum Recommended Supplies for Decontamination of Personnel Clothing and Equipment The list below contains recommendations for supplies which would be on hand for the decontamination of personnel clothing and equipment Depending on the site activities not all of these items may be needed Alternatively some additional items not listed here may be required e Drop cloths of plastic or other suitable material such as visqueen for heavily contaminated equipment e Disposal collection containers such as drums or suitably lined trash cans for disposable clothing and heavily contaminated personal protective clothing or equipment to be discarded e Lined box with adsorbent for wiping or rinsing off gross contaminants and liquid contaminants e Wash tubs of sufficient size to enable workers to place booted foot in and
43. sembly into the well As you place the unit into position ensure that the water pump intake WTDP applications is no closer than 1 30 cm from the bottom of the well This will prevent debris from entering the pump intake which can cause premature wear to the pump impellers Under no condition should a PSCAV system be suspended down the well by its power cord or discharge hoses 2 Confirm that the output hose of the water pump is connected to suitable collection point or proper runoff Check local regulations 3 Run the 3 8 nylon product discharge hose to the product recovery tank 4 Set both the product and water pumps to OFF Apply power to the GECM This will allow you to observe the control panel display for float positions See page 21 for display information 5 Adjust the position of the PSCAV assembly in the well until the product float is suspended in product 6 GECM display will read water and product levels Refer to the GECM User Manual or Section 3 of this manual for display definitions You may need to run the water pump in HAND until a stable cone of depression within the water table has been established gt When the pump assembly passes through the hydrocarbon water interface fluid displacement will artificially raise the level of the interface in the well This condition can persist for up to 48 hours depending upon the permeability of the earth surrounding the well Readjustment of the PSCAV system level as a wh
44. sentative Since the downwell pump assembly must be removed from the well to perform maintenance on the intake strainer such occasions should be used to carry out a general inspection of the entire assembly It is particularly important that the flexible product hose be carefully checked This hose should be replaced if leaks or major kinks are discovered Clean Probes It is essential that the probe shafts and floats be cleaned on a regular basis Use phosphate detergent warm water and a soft brush The required frequency of cleanings is highly site specific and must be determined by the user Failure to clean the probe will result in fouling that could cause system malfunction Water Pump Maintenance The following is a schedule of water pump maintenance Water Table Depression Pump System Frequency of Maintenance Tasks Quarterly Calendar Task Week 1 2 3 4 5 6 7 8 9 10 11 12 Check flow rate to ensure minimum cycling frequency x K M i Remove cover from probe and M i clean floats conductivity sensors Check start box for moisture T accumulation Take current draw readings and 4 compare with motor specification Inspect hoses and wires for cracks cuts and abrasions 22 Backup Checkvalve It is recommended that an alternate checkvalve be installed in the event of a primary checkvalve f
45. the GECM PCB as shown in the GECM Field Wiring Diagram Refer to Figure 2 7 for additional wiring details PROBE SHAFT BLACK HIGH LEVEL SWITCH WIRED N C OPEN IN ALARM TANKFULL FLOAT Figure 2 7 Wiring a Tankfull probe to the GECM requires Field Wiring Diagram 17 System Pre check If you have ordered an Intake Assembly and Downwell Probe these parts will already be attached to the PSCAV center pipe as shown in Figure 1 1 Confirm that the Intake Assembly and probe are firmly mounted to the unit and that the stop collar above the HI Water switch Figure 1 3 is horizontally centered to the weld on the intake screen This will maximize product intake from the water surface Before deploying a PSCAV system into the well carry out the following unit preparation procedures On Product Only Systems Fill the pump water jacket with clean water by turning the PSCAV assembly upside down and removing the plug at the bottom of the water jacket Check all wiring On product only applications the orange and green wires will not be used or wired to the GECM For WTDP ready PSCAV verify exposed wiring to the water pump motor are zip tied and out of the way from catching on the walls of the well System Deployment 1 Attach one end of the 3 8 nylon product hose to the compression fitting on the checkvalve see Figure 2 8 2 Attach a winch cable to the eyebolt of the PSCAV system and carefully lower the as
46. the water level becomes too high a signal is sent to the GECM to turn on the water pump for WTDP ready systems The water pump will automatically lower the cone of depression in the well and shut off when the water float reaches the lower sensor This function keeps the opening on the intake assembly as close to the product layer as possible However it may be necessary to re adjust the PSCAV position within the well also Water pumps are available with 2 wire or 3 wire motors and range in power from 1 3 to 20 horsepower 2 wire motors are available in single phase only and feature built in start components and thermal overload protection 3 wire motors through 1HP include built in thermal overload protection 3 phase deep well submersible pump motors which require an external start component can come with either an external start box or designated motor starter installed within the GECM Start boxes and motor starters are supplied by Geotech as an option Most motor pump scenarios including multiple pumps can be controlled by one GECM with the appropriate motor starter s installed Refer to Appendix A for a list of water pumps available from Geotech Intake Assembly The intake assembly is designed with an outer 60 mesh screen and a removeable inner 100 mesh screen Together they allow product or water to be captured and pumped to the surface via the product pump When used in conjunction with the downwell probe assembly the PSCAV system
47. urchase price thereof Geotech will have no warranty obligation if the product is subjected to abnormal operating conditions accident abuse misuse unauthorized modification alteration repair or replacement of wear parts User assumes all other risk if any including the risk of injury loss or damage direct or consequential arising out of the use misuse or inability to use this product User agrees to use maintain and install product in accordance with recommendations and instructions User is responsible for transportation charges connected to the repair or replacement of product under this warranty Equipment Return Policy A Return Material Authorization number RMA is required prior to return of any equipment to our facilities please call our 800 number for appropriate location An RMA will be issued upon receipt of your request to return equipment which should include reasons for the return Your return shipment to us must have this RMA clearly marked on the outside of the package Proof of date of purchase is required for processing of all warranty requests This policy applies to both equipment sales and repair orders FOR A RETURN MATERIAL AUTHORIZATION PLEASE CALL OUR SERVICE DEPARTMENT AT 1 800 833 7958 Model Number Serial Number Date Equipment Decontamination Prior to return all equipment must be thoroughly cleaned and decontaminated Please make note on RMA form the use of equipment contam
48. wash off contaminants without a drain or with a drain connected to a collection tank or appropriate treatment system 42 e Rinse tubs of sufficient size to enable workers to place booted foot in and wash off contaminants without drain or with a drain connected to a collection tank or appropriate treatment system e Wash solutions selected to wash off and reduce the hazards associated with the contaminated wash and rinse solutions e Rinse solution usually water to remove contaminants and contaminated wash solutions e Long handled soft bristled brushes to help wash and rinse off contaminants e Lockers and cabinets for storage of decontaminated clothing and equipment e Storage containers for contaminated wash and rinse solutions e Plastic sheeting sealed pads with drains or other appropriate method for containing and collecting contaminated wash and rinse water spilled during decontamination e Shower facilities for full body wash or at a minimum personal wash sinks with drains connected to a collection tank or appropriate treatment system e Soap or wash solution wash cloths and towels e Clean clothing and personal item storage lockers and or closets 43 The Warranty For a period of one 1 year from date of first sale product is warranted to be free from defects in materials and workmanship Geotech agrees to repair or replace at Geotech s option the portion proving defective or at our option to refund the p
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