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Temperature Control Units Service Manual

1. DVANTAGE MAKING WATER WORK 525 East Stop 18 Road Greenwood Indiana 46142 317 887 0729 Fax 317 881 1277 Service Department Fax 317 885 8683 www AdvantageEngineering com FRONT VIEW SIDE VIEW BACK VIEW TO PROCESS DRAIN CONNECTION CONNECTION SENTRA FROM PROCESS sm WATER SUPPLY WATER SUPPLY MANIFOLD SEEE E 1 CONNECTIONS TO PROCESS CONNECTION Le DRAIN SENTRA ncn CONNECTION ZENTER FROM PROCESS CONNECTION WATER SUPPLY CONNECTION ft in 3 da e wr 21 5 gt PLANT WATER SUPPLY PLANT DRAIN ADVANTAGE ENGINEERING INC Page 77 THIS PAGE INTENTIONALLY BLANK Page 78 Temperature Control Units Sentra with HE Series Instrument 8 0 APPENDIX 8 1 SPECIFICATIONS 8 2 SENTRA MODEL AND SUFFIX CODING 8 3 INTERPRETATION OF PROCESS PRESSURE GAUGES 8 4 OPERATION OF MOLD PURGE 8 5 CLOSED CIRCUIT OPERATION 8 6 DIP SWITCH USE 8 7 ADVANCE INSTRUMENT USE 8 8 SPI COMMANDS 8 9 COMMUNICATIONS CABLE 8 10 SECOND SETPOINT OPERATION 811 OPTIONAL ALARM OPERATION 8 12 Valve components 813 SENTRA AS5 PUMP PARTS LIST 1 2 HP TO 1 HP 814 SENTRA AS5 PUMP PARTS LIST 1 5 HP TO HP 815 SENTRA PARTS LIST HE INSTRUMENT ADVANTAGE ENGINEERING INC Page 79 525 East Stop 18 Road Green
2. 081 1 08 INSTRUCTION MANUAL INSTALLATION OPERATION e MAINTENANCE SUN Inia TEMPERATURE CONTROLLER SK Series CONTROLLER i Covers Models with HE Series Instrument Series _ DVANTAGE MAKING WATER WORK ADVANTAGE ENGINEERING INC 525 East Stop 18 Road Greenwood IN 46142 317 887 0729 fax 317 881 1277 Service Department fax 317 885 8683 www AdvantageEngineering com e mail sales AdvantageEngineering com 2 UNO RLA TEMPERATURE CONTROLLER ii SK Series INSTRUCTION MANUAL SENTRA SK HE SERIES INSTRUMENT COVERING INSTALLATION OPERATION MAINTENANCE MAKING WATER WORK ADVANTAGE ENGINEERING INC 525 East Stop 18 Road Greenwood IN 46142 317 887 0729 fax 317 881 1277 Service Department fax 317 885 8683 www AdvantageEngineering com e mail sales 9 AdvantageEngineering com Temperature Control Units Sentra with Series Instrument TABLE OF CONTENTS SENTRA QUICK START UP GUIDE SENTRA QUICK TROUBLESHOOTING GUIDE 1 0 GENERAL 1 1 Safety 1 2 Efficiency 1 3 Typical Label Placement 1 4 Component placement 2 0 INSTALLATION 2 1 General 2 2 To and from process connections 2 3 Water supply connection 2 4 Drain connection 2 5 Electrical connection 3 0 START UP SEQUENCE 3 1 General 3 2 System fill operations procedure 3 3 Instrument operation 3 4 Shut down
3. er 25 N D X X X NA 9 5 AN NA 2 w u c 2 o VK dk 118 32 x 3 4 Hex Head ADVANTAGE ENGINEERING INC Page 94 525 East Stop 18 Road Greenwood Indiana 46142 317 887 0729 Fax 317 881 1277 Service Department Fax 317 885 8683 www AdvantageEngineering com e DVANTAGE MAKING WATER WORK Temperature Control Units Sentra with Series Instrument 813 SENTRA AS5 PUMP PARTS LIST 1 2 HP TO 1 HP PART 6206995 414 771599 3444400 3444401 4310601 4757861 5486522 5622271 6490000 6491000 6207000 414 771599 3444400 3444401 4310602 4757862 5486522 5622271 6490000 6491000 6207010 414 771599 3444400 3444401 4310603 4757863 5486522 5622271 6490000 6491000 DESCRIPTION MOTOR PUMP ASSEMBLY 1 2 5 2 4 3 60 Adapter iron C2 4551 AS5 Pump case iron D2 1839 AS5 Tank gasket 2 3 8 A 9159 AS5 Tank gasket 4 1 2 A2 8748 AS5 Impeller B2 5264 4 37 AS5 Motor AE5 AS5 A5W 1HP S 2771R Nut 5 4989 AS5 O ring Case S 5091 55 Shaft seal 101 173 5 8 EPT Shaft seal EPT Ceramic 4949 AE5 AS5 MOTOR PUMP ASSEMBLY 55 3 4HP ODP 230 460 Adapter iron C2 4551 AS5 Pump case iron D2 1839 AS5 Tank gasket 2 3 8 A 9159 AS5 Tank gasket 4 1 2 A2 8748 AS5 Impeller B2 5264 4 5 AS5 Motor AE5 AS5 A5W 3 4 S 2772R Nut 5 4989 AS5 O ring Case S 5091 A
4. ExCHANGER DRAIN ADVANTAGE ENGINEERING INC Page 84 525 East Stop 18 Road Greenwood Indiana 46142 317 887 0729 Fax 317 881 1277 Service Department Fax 317 885 8683 MAKING WATER WORK www AdvantageEngineering com Temperature Control Units Sentra with HE Series Instrument 8 6 DIP SWITCH USE A DESCRIPTION 1 The 5 position DIP switch is located in the center of the CPU board and is used to set options for machine operation The switches should only be changed when the instrument is turned OFF Definitions of the 5 DIP switches are listed below B DEFINITIONS 1 SW1 code page for EPROM ON default code page is active OFF code page 1 is active 2 SW2 extended configuration ON default extended configuration is disabled OFF extended configuration is enabled The display will show AFL no yes Internal Alternate Flow Sensor SP2 no yes Disable Enable 2nd Setpoint Disable Enable Remote Setpoint 3 SW3 valve size ON default 1 2 3 8 500 step valve is enabled The display will show ULU 50 for 500 step small valve OFF 3 4 1000 step AVT valve is enabled The display will show ULU 100 for 1000 step large valve 4 SWA remote start stop ON default remote start disabled OFF remote start enabled 5 SW5 heat only mode ON CL
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6. to process and ice water bath are equal the calibration procedure is complete Shut down the unit The operator must be certain to remove the 1 2 plug and replace the sensor probe Restart operations ADVANTAGE ENGINEERING INC Page 54 525 East Stop 18 Road Greenwood Indiana 46142 317 887 0729 Fax 317 881 1277 Service Department Fax 317 885 8683 MAKING WATER WORK www AdvantageEngineering com Temperature Control Units Sentra with HE Series Instrument 5 5 VOLTAGE CHANGEOVER A The unit can undergo a field voltage conversion by qualified technicians Consult factory for 380 volt conversions B For a field voltage changeover the following items will require replacement or rewiring 1 Heater rewiring 2 Motor rewiring 3 Transformer rewiring 4 Motor overloads replacement The operator should follow this procedure to complete a field voltage changeover 1 Disengage process operations and verify all system pressure is relieved and the unit s pressure gauges read 0 2 Disengage main power supply Follow proper lock out procedures The operator must verify the Power light on the display is off 3 Remove the lift off access panel and set aside 4 Rewire the heater to the new voltage Figure 5 5A shows the wiring for 230 and 460 volt heaters 240 VOLT WIRING 480 VOLT WIRING Wiring schematics for 230 and 460 volt heaters Revised 9 98 Figure 5 5A 5 Remove the t
7. 4 Remove the thermoformed panel It is attached to the stainless steel cabinet by 4 small screws figure 5 1 5 Drain machine by removing the pump casing drain plug 6 Remove the three motor wire leads from the motor wiring terminals The operator should map the wire terminal locations to ensure correct rewiring The power cord should be removed from the motor housing figure 5 1D Remove lift off access panel Figure 5 1B Thermoformed panel Figure 5 1C removed and electrical cabinet open Motor leads Figure 5 1D ADVANTAGE ENGINEERING INC Page 44 525 East Stop 18 Road Greenwood Indiana 46142 317 887 0729 Fax 317 881 1277 Service Department Fax 317 885 8683 MAKING WATER WORK www AdvantageEngineering com Temperature Control Units Sentra with Series Instrument T 10 11 12 DVANTAGE MAKING WATER WORK Locate and remove the 4 pump casing bolts These bolts secure the motor and motor adapter to the pump casing figure 5 1E Separate the motor and adapter from the pump casing to expose the pump impeller figure 5 1F Remove the motor and adapter from the unit and place on a workbench to continue the procedure Locate and remove the dust cap from the motor to expose slotted motor shaft The motor shaft is free to rotate but must be secured to remove the impeller To secure the motor shaft insert a flat bladed screw driver in slot to
8. HE Series Instrument G CAPACITY 96 DISPLAY figure 3 3F CAPACITY COOL Figure 3 3F 1 The Capacity display shows information concerning the in use heating and cooling capacity of the unit Heat and Cool indicating lights determine which capacity percent is displayed a HEAT when illuminated the unit is in the heating mode heater on The number displayed in the Capacity window is percent of on time use of the heater b COOL when illuminated the unit is in the cooling mode heater off and the valve is opening The number displayed in the Capacity 6 window is how much the AVT valve is open DEAD BAND when illuminated the unit is not in the Heat and Cool mode H PROCESS DISPLAY 3 36 1 The process display is an alarm PROCESS indication for Temperature Deviation and Flow TEMP FLOW DEV Figure 3 3G a TEMP this light will be Solid Green when the process temperature is within the programmed setting The light will be Solid Yellow if the process temperature deviates outside the programmed setting If the temperature remains out of band for 90 seconds or more the light will Flash Red and activate the alarm b FLOW this light will be Solid Green when the process flow is within the programmed setting The light will Flash Red if the flow deviates beyond the programmed setting The light will be Solid Red if the flow once had deviated but is now
9. Several important references are made to safety considerations in this manual It is the owner s responsibility to assure proper operator training installation operation and maintenance of the water temperature controller with instrument 1 2 EFFICIENCY A Long term efficiency of operation is largely determined by proper maintenance of the mechanical parts of the unit and water quality We recommend filtering where required to prevent solids from plugging critical parts such as pumps heaters and seals The services of a competent water treatment specialist must be obtained and his recommendations followed Advantage accepts no responsibility for inefficient operation damage caused by foreign materials or failure to use adequate water treatment 1 3 TYPICAL LABEL PLACEMENT Warning Label Summarizes the safety precautions when unit is in use Process Connection Label Details process connections hook up Unit Data Tag Details unit Serial Number voltage and other important unit information ADVANTAGE ENGINEERING INC Page 10 525 East Stop 18 Road Greenwood Indiana 46142 317 887 0729 Fax 317 881 1277 Service Department Fax 317 885 8683 e MAKING WATER WORK www AdvantageEngineering com Temperature Control Units Sentra with HE Series Instrument 1 4 COMPONENT PLACEMENT A The temperature controller is designed to circulate temperature stabilized water through the process system to result in proces
10. continue with steps 6 12 6 The motor gearbox assembly is mounted to the valve bracket and is secured by 2 mounting screws NOTE it will also be necessary to remove the 2 screws that secure the micro switch to completely remove the motor since they are hard wired together T Remove the 2 mounting screws The motor and gearbox will now be loose Carefully separate the motor gearbox from the attached coupling from the valve assembly 8 Align the motor gearbox and coupling to the valve assembly 9 Align the motor gearbox assembly mounting holes to the holes in the cooling cylinder Replace the 2 mounting screws and loosely install the microswitch screws 10 Reconnect the wiring harness Home base is the reference point from which the controller is able to open the valve incrementally If the unit is not able to find home a valve fault ULU will appear in the Temperature display window Adjust the home switch to clear the fault ADVANTAGE ENGINEERING INC Page 50 525 East Stop 18 Road Greenwood Indiana 46142 317 887 0729 Fax 317 881 1277 Service Department Fax 317 885 8683 MAKING WATER WORK www AdvantageEngineering com Temperature Control Units Sentra with HE Series Instrument 11 Adjusting the home switch Apply power The coupling should begin to turn When the lobe on the coupling is directly under the roller for the microswitch turn off the power Adjust the microswitch so that the roller fully
11. display will read 100 If the automatic purge cycle does not result in the venting of all entrained air to the drain evidenced by a rattling sound in the unit and fluctuating pressure gauges the operator must manually vent the process Forced venting is done by holding the Start or Stop push button for more than 5 seconds If the To Process temperature exceeds 100 F the automatic air purge cycle is bypassed The operating setpoint temperature is selected by using the Select push button to index to the Temp indicating light ADVANTAGE ENGINEERING INC Page 28 525 East Stop 18 Road Greenwood Indiana 46142 317 887 0729 Fax 317 881 1277 Service Department Fax 317 885 8683 MAKING WATER WORK www AdvantageEngineering com Temperature Control Units Sentra with Series Instrument Depress the Up Arrow push button or Down Arrow push button until the preferred setpoint temperature is indicated in the Setup Display window Setpoint temperatures can be adjusted anytime during the process temperature control cycle Note the operator may directly adjust the setpoint without using the Se ect push buttons when the To Process temperature light is on 6 The Temp Dev temperature deviation light will remain off unit the setpoint temperature is achieved and maintained 7 Press the Stop key to halt unit operations C INSTRUMENT CONTROLS cricure 3 38 1 START starts unit operations by engaging electrical suppl
12. iron 2 4551 55 Pump case iron D2 1839 AS5 Tank gasket 2 3 8 A 9159 AS5 Tank gasket 4 1 2 A2 8748 AS5 Impeller B2 5264 5 25 AS5 Motor AE5 AS5 A5W 2HP S 2775R Nut S 4989 AS5 O ring Case S 5091 55 Shaft seal 101 173 5 8 EPT Shaft seal EPT Ceramic 4949 AE5 AS5 MOTOR PUMP ASSEMBLY AS5 2 4 3 60 Adapter iron C2 4551 55 Pump case iron D2 1839 AS5 Tank gasket 2 3 8 A 9159 AS5 Tank gasket 4 1 2 A2 8748 AS5 Impeller B2 5264 5 25 AS5 Motor AE5 AS5 A5W 3HP 4551R Nut S 4989 AS5 O ring Case S 5091 AS5 Shaft seal 101 173 5 8 EPT Shaft seal EPT Ceramic 4949 AE5 AS5 ADVANTAGE ENGINEERING INC Page 96 525 East Stop 18 Road Greenwood Indiana 46142 317 887 0729 Fax 317 881 1277 Service Department Fax 317 885 8683 www AdvantageEngineering com Temperature Control Units Sentra with HE Series Instrument 8 15 SENTRA PARTS LIST HE INSTRUMENT PART DESCRIPTION 299080 AVT Drip Cover DWG MD 480 299081 AVT Home Switch Bracket DWG MD 468 781000 Caster 2 Swivel EY459R 1835050 Contactor 3030APS 30 AMP 1843600 AVT coupling DWG MD 464 2735358 Sentra Top SS DWG EP 103 2746237 SK Cabinet DWG EP 103 2746238 Electrical Enclosure Door SS DWG EP 103 2761201 Electrical Sub Panel DWG EP 103 2851112 Gauge Panel DWG EP 103 2877542 Base DWG EP 103 3581000 Pressure Gauge 0 160 PSI 2 Face 3708505 Plastic Handle P2 41 3775510 Heater 10kw 2 4 3 60 Square Flange 3520005 Heat
13. 198 200 208 208 213 223 275 290 SENTRA SPECIFICATIONS SK 1620 1635 1645 1665 1675 1680 1690 16100 KW 16 16 16 16 16 16 16 16 PROCESS PUMP HP Ye 3 1 12 2 3 5 7 20 35 45 62 75 80 90 100 PSI 30 30 30 30 30 30 34 54 FULLLOAD AMPERAGE 230 volt 42 0 42 8 43 6 45 2 46 8 49 6 55 4 62 2 G3o 60hz 460 volt 21 0 21 4 21 8 22 6 23 4 248 27 7 31 1 DIMENSIONS inches Height 27 27 27 27 27 27 44 44 Width 11 11 11 11 11 11 16 16 Depth 16 16 16 16 16 16 24 24 CONNECTIONS inches 1 4 1 4 1 4 ha 1 4 1 2 17 2 S D 12 1 2 1 2 12 12 12 12 1 2 WEIGHT pounds Shipping 200 205 210 210 220 225 285 300 SENTRA SPECIFICATIONS SK 2435 2445 2465 2475 2480 2490 24100 HEATER KW 24 24 24 24 24 24 24 PROCESS PUMP HP 1 12 2 3 5 71 2 35 45 65 75 80 90 100 PSI 30 30 30 30 30 34 54 FULL LOAD AMPERAGE 230 volt 63 1 63 9 65 5 67 1 69 9 75 5 82 3 3o 60hz2 460 volt 31 6 32 0 32 8 33 6 35 0 37 8 41 2 DIMENSIONS inches Height 44 44 44 44 44 44 44 Width 16 16 16 16 16 16 16 Depth 24 24 24 24 24 24 24 CONNECTIONS inches 1 4 a ha 1 4 1 2 172 S D4 1 2 12 12 1 2 1 2 WEIGHT pounds Shipping 270 275 280 285 290 295 310 SENTRA SPECIFICATIONS SK 3435 3445 3465 3475 3480 3490 34100 HEATER KW 34 34 34 34 34 34 34 PROCESS PUMP HP 34 1 1 2 2 3 5 712 35 45 65 75 80 90 100 PSI 30 30 30 30 30 34 54 FULL LOAD AMPERAGE 230 volt 88 2 89 0 90 6 92 2 95 0 100 6 107 4 30 60hz 460 volt 44 1 44 5 45 8 46 1 47 5 50
14. 2D 10 Set new heater into tank Aligning the bolt pattern of the heater and tank flanges 11 Replace the 4 heater mounting bolts Alternate to the opposite bolt while tightening 12 Reconnect the power cable to the heater terminals Be certain to tighten the power cord junction box connector Replace the junction box cover and the lift off cover panel D When complete restart the unit ADVANTAGE ENGINEERING INC Page 48 525 East Stop 18 Road Greenwood Indiana 46142 317 887 0729 Fax 317 881 1277 Service Department Fax 317 885 8683 MAKING WATER WORK www AdvantageEngineering com Temperature Control Units Sentra with Series Instrument 5 3 AVT COOLING VALVE SERVICE A The AVT cooling valve is a two component assembly consisting of the motor gearbox and valve assembly mated with a machined aluminum coupling The AVT valve assembly is sheltered by an thermoformed drip cover figure 5 3A The drip cover is secured by two nuts and can be removed When removed the AVT valve components can be viewed figure 5 3B ABS drip cover Square drive stem Mounting flange Stainless valve body Cooling Cylinder One piece Coupling Valve Home switch 1 Motor Gearbox 4 Figure 5 3B B The conditions that require servicing of the AVT modulating valve are as follows 1 Motor gearbox assembly defective This condition is evidenced by non movement of the motor when
15. 4 PROBE CALIBRATION A DVANTAGE MAKING WATER WORK The temperature probe figure 5 4A is a temperature transducer The transducer is embedded into a threaded bulb well The transducer converts the temperature of the water into a proportional current output which the microprocessor controller reads displays and bases it controlling functions The gain is automatically calibrated within the microprocessor Typical sensor probe Figure 5 4 electronics The zero adjustment potentiometer is located on the CPU The temperature transducer and instrument circuitry is very stable A small drift may occur over time To ensure correct temperature reading calibrate the probe annually or per your facility calibration standards Operation in high humidity and high vibration environments may require more frequent calibration The operator should follow this procedure to calibrate the probe 1 Disengage process operations and verify all system pressure is relieved and the unit s pressure gauges read 0 2 Disengage main power supply and verify the Power light on the display is off 3 Remove the Process temperature probe and insert a 1 2 plug in its place figure 5 4B To complete the calibration procedure the unit will be operated at full flow and pressure The plug is to maintain the mechanical integrity of the unit during the calibration procedure Plug Figure 5 4B 4 Prepare an ice wa
16. 6 2B PRESSURE SWITCH The electric panel mounted pressure switch will close when sufficient pressure is supplied to the unit 20 psi A closed pressure switch will consent the control circuit to the instrument controller to allow process operations figure 6 2B SENSOR PROBES The unit uses two sensor probes The to process temperature sensor and the high temperature limit safety switch are housed in the same assembly and mounted in the heater pump discharge tank figure 6 2C The from process probe is mounted in the suction tank POWER CORD The supplied power cord is factory installed to the unit The power cord is a 3 Heater Motor start and Contactor overload relay Transformer Pressure switch Figure 6 2B Instrument service connections Sensor probe and high temperature limit Figure 6 2C conductor with 1 ground wire sized for the unit and 10 in length ADVANTAGE ENGINEERING INC 525 East Stop 18 Road Greenwood Indiana 46142 317 887 0729 Fax 317 881 1277 Service Department Fax 317 885 8683 www AdvantageEngineering com Page 69 THIS PAGE INTENTIONALLY BLANK Page 70 Temperature Control Units Sentra with HE Series Instrument 7 0 RELATED DRAWINGS 7 1 SENTRA PHYSICAL 7 2 SENTRA ELECTRICAL 7 3 SENTRA CIRCUIT SCHEMATIC 7 4 SENTRA REGULATOR BYPASS INSTALLATION 7 5 SENTRA DUAL ZONE DOLLY 7 6 SENTRA STACKING RACK ADVANTAGE ENGINEERING INC Page 71 525 East Sto
17. ADVANTAGE ENGINEERING INC Page 75 525 East Stop 18 Road Greenwood Indiana 46142 317 887 0729 Fax 317 881 1277 Service Department Fax 317 885 8683 MAKING WATER WORK www AdvantageEngineering com Temperature Control Units Sentra with Series Instrument 7 5 SENTRA DUAL ZONE DOLLY SENTRA 1 DRAIN CONNECTION SENTRA 2 FROM PROCESS CONNECTION DRAIN CONNECTION TO PROCESS CONNECTION TO PROCESS CONNECTION FROM PROCESS CONNECTION WATER SUPPLY CONNECTION WATER SUPPLY CONNECTION WATER SUPPLY MANIFOLD WATER SUPPLY CONNECTION TO 1 WATER SUPPLY MANIFOLD CONNECTION ELECTRICAL CABINET WATER SUPPLY CONNECTION TO SENTRA 2 STRUCTURAL STEEL BASE DRAIN CONNECTION TO SENTRA 1 CASTER DRAIN MANIFOLD CONNECTION WATER SUPPLY MANIFOLD DRAIN CONNECTION TO SENTRA 2 ADVANTAGE ENGINEERING INC Page 76 525 East Stop 18 Road Greenwood Indiana 46142 317 887 0729 Fax 317 881 1277 Service Department Fax 317 885 8683 MAKING WATER WORK www AdvantageEngineering com Temperature Control Units Sentra with HE Series Instrument 7 6 SENTRA STACKING RACK 64
18. CONNECTOR DB 9 FEMALE EIA48S DRIVER ELECTRONICS MACHINE CONNECTORS 3RD COND 4 ADVANTAGE ENGINEERING INC Page 91 525 East Stop 18 Road Greenwood Indiana 46142 317 887 0729 Fax 317 881 1277 Service Department Fax 317 885 8683 www AdvantageEngineering com e DVANTAGE MAKING WATER WORK Temperature Control Units Sentra with HE Series Instrument 8 10 SECOND SETPOINT OPERATION A The SENTRA SK instrument is available with optional second setpoint capability The second setpoint is activated by a contact closure between the red and black wires on the remote cable The remote adjustable setpoint is activated by the input of 0 10 volts B The instrument must be configured for second setpoint or remote setpoint before use To access the extended configuration menu the second DIP switch located on the top edge of the CPU board must be toggled to the off position C To activate the second setpoint function use the select key to access the SP2 prompt in the extended menu With the up arrow select yes to enable the second setpoint option D To activate the remote setpoint use the select key to access the RSP prompt in the extended menu With the UP arrow select yes to enable the remote setpoint function CUSTOMER SUPPLIED INPUT SIGNAL WHITE REMOTE 0 10 VOLTS de O 4 ON CLOSED BLACK REMOTE GROUND MEM
19. Units Sentra with Series Instrument 5 6 SENSOR PROBE SERVICE A Each temperature probe figure Probe 5 6A is a temperature transducer The transducer is embedded into a bulb well which is threaded into the tank The transducer converts the temperature of the water into a proportional current output which the microprocessor controller reads displays and bases it controlling functions The gain is automatically calibrated within the controller electronics the zero Service connection Figure 5 6A adjustment potentiometer is located on the CPU Sensor probe errors are indicated by the Probe light on the instrument with a Flashing Hed display When a sensor probe error is displayed take the following steps to correct 1 RECONNECTION If the service connection of the sensor probe becomes saturated with water Simply unplug the connection shake out the water to clear the service connection and replug If this was the problem the error display should change to Solid Red which can be cleared by pressing the Start push button If not continue with replacement REPLACEMENT Replacement of the sensor probe involves ceasing process operations as outlined in section 3 4 of this manual and removing the defective sensor probe All factory supplied replacement probes are complete with the service connection Unit with HE Series instruments use two sensor probes to process and a from process The h
20. WORK www AdvantageEngineering com Temperature Control Units Sentra with HE Series Instrument could be incorrect or damaged Probe connections are at the instrument panel Correct wiring is from top to bottom white black white black red red If probe connections are correct and the error condition remains the probe may be faulty and should be replaced b Valve Error indicates the instrument cannot verify valve position Refer to section 5 3 for service Phase Error follow the procedure outlined in section 3 2 paragraph B Electric Motor Phasing to correct a phase error If a phase error can not be cleared even though the pump motor is rotating correctly the three phase monitor is defective and should be replaced Disconnect the unit until a replacement is obtained 4 After a Flashing Red fault indication is diagnosed and repaired the indication will turn Solid Red The operator can clear the fault indication by pressing the Start push button 5 When the Start push button is pressed the instrument will check the status of the water supply pressure switch Water Press light the motor overload switch Pump OL light and the high temperature safety switch Hi Temp light for acceptable operating conditions If these are found to be ok the lights will be Solid Green and the unit will begin operation If a system is not ok the light will Flash Red
21. and the unit will not start 6 Conditions that will prevent the unit from starting process temperature control operations are a Water supply pressure inadequate The Water Press indicator light is Flashing Red The unit can not operate without adequate water supply pressure Sufficient water supply pressure must be present to close the water pressure switch b Motor overload switch opened The Pump OL indicator light is Flashing Hed The pump motor is protected from excessive flow by a set of thermal overload relays which open trip with excessive amperage If the overload relay is open the overload relay must be reset before operations can continue An excessive flow condition must be corrected immediately High temperature limit switch open The Hi Temp indicator light is Flashing Red The unit is prevented from operating with process temperatures exceeding 256 F by the high temperature limit ADVANTAGE ENGINEERING INC Page 27 525 East Stop 18 Road Greenwood Indiana 46142 317 887 0729 Fax 317 881 1277 Service Department Fax 317 885 8683 MAKING WATER WORK www AdvantageEngineering com Temperature Control Units Sentra with Series Instrument switch This switch is installed in the To Process temperature sensor If a high temperature condition exists the unit must first cool down before the high temperature limit switch can automatically reset B INSTRUMENT OPERATION 1 The operator mu
22. back together continue with step 17 Aligned the valve assembly coupling to the motor gearbox and place on the cooling cylinder A gasket or seal is not required ADVANTAGE ENGINEERING INC Page 51 525 East Stop 18 Road Greenwood Indiana 46142 317 887 0729 Fax 317 881 1277 Service Department Fax 317 885 8683 MAKING WATER WORK www AdvantageEngineering com Temperature Control Units Sentra with Series Instrument 17 Replace the top plate the micro switch mounting plate and the 4 mounting bolts Tighten the 4 mounting bolts alternating to the opposite bolts 18 Once power is reapplied the instrument will align the AVT modulating valve to home base Home base is the reference point from which the controller is able to open the valve incrementally Process operations can resume If the unit is not able to find home a valve fault ULU will appear in the temperature display Readjust the home switch to clear the fault Adjust the home switch as needed as outlined in Step 11 SNAP RING gt BELLVILLE gt STEM PAKCING nm M B STEM PAKCING BODY SEAT SEAL RINC SEAT BALL SEAL RING ADVANTAGE ENGINEERING INC Page 52 525 East Stop 18 Road Greenwood Indiana 46142 317 887 0729 Fax 317 881 1277 Service Department Fax 317 885 8683 MAKING WATER WORK www AdvantageEngineering com Temperature Control Units Sentra with Series Instrument 5
23. bolts alternating to the opposite bolt when tightening Reinstall the pressure gauge line the AVT cable and the pressure switch line Restart the unit as outlined in sections 2 and 3 of this manual Check the system for any leaks around the process connections and repair if required ADVANTAGE ENGINEERING INC Page 63 525 East Stop 18 Road Greenwood Indiana 46142 317 887 0729 Fax 317 881 1277 Service Department Fax 317 885 8683 MAKING WATER WORK www AdvantageEngineering com THIS PAGE INTENTIONALLY BLANK Page 64 Temperature Control Units Sentra with HE Series Instrument 6 0 SENTRA COMPONENTS 6 1 MECHANICAL SYSTEM 6 2 ELECTRICAL SYSTEM ADVANTAGE ENGINEERING INC Page 65 525 East Stop 18 Road Greenwood Indiana 46142 317 887 0729 Fax 317 881 1277 Service Department Fax 317 885 8683 www AdvantageEngineering com DVANTAGE MAKING WATER WORK Temperature Control Units Sentra with Series Instrument 6 1 MECHANICAL SYSTEM A MOTOR PUMP ASSEMBLY The unit pump is a multi component assembly serving to circulate water through the process system The pump will increase the system pressure between 35 50 PSI over the plant water supply pressure The pump is driven by an electrical motor 1 Pump Casing Pump casing The pump casing is an exclusive design The casing is cast of iron and flanged to accept the heater discharge and cooling tanks The casing is the
24. depresses the microswitch Turn on the power and the valve should turn forward and backwards a few times and then stop at the home position The valve light should be green and you may begin operation See diagram on next page NOTE Important the valve stem should be in this position as indicated in the diagram and the valve should be CLOSED If the valve is open manually turn the square stem 90 so that the valve is closed MTG Screws Switch Lobe Coupling E To service the valve components continue with steps 13 20 12 13 14 15 16 Be certain the unit is totally depressurized with the unit s pressure gauges reading 0 The unit should be drained if possible The valve assembly is a ball valve specially designed only to work with the AVT motor The valve assembly is secured to the cooling cylinder by a top plate and 4 mounting screws The drain connection originates at the valve top plate with a brass elbow and close nipple fitting The connection can be maintained when servicing the valve Remove the 4 mounting screws The top plate mounting bolts valve assembly and the mounting plate with the attached micro switch will now be loose Carefully separate the valve from the motor gearbox At this step the valve can be rebuilt or replaced To rebuild the valve order PN 8764939 and install new stem packing O ring seal rings and seats see diagram below Once the value is
25. determined at the unit s location by reading the unit s 0 160 PSI pressure gauges when the unit s pump motor is OFF E If water supply pressure as read on the unit s pressure gauges exceeds 75 PSI a pressure reducing valve must be installed in the water supply line refer to section 7 4 of this manual for installation information The factory recommended regulated pressure out is 55 PSI figure 2 20 DRAIN CONNECTION Typical pressure reducing valve Figure 2 2 A Connect the unit s DRAIN port to installation shown on S 925 one of the following determined by the water supply source 1 Open drain for well or city water supply 2 Tower water system return for tower system water supply 3 Chilled water system return for chilled water system supply ADVANTAGE ENGINEERING INC Page 15 525 East Stop 18 Road Greenwood Indiana 46142 317 887 0729 Fax 317 881 1277 Service Department Fax 317 885 8683 MAKING WATER WORK www AdvantageEngineering com Temperature Control Units Sentra with Series Instrument B The factory recommends a minimum of 10 psi pressure differential between the water supply and drain line for proper cooling For most applications the drain line should not be valved However for installations with a pressurized drain system it may be necessary to install a valve in the drain line In such cases the installed valve must be fully opened after installation and the valve h
26. disconnect sequence 4 0 TROUBLESHOOTING 4 1 Unit will not start Power light off 4 2 Unit will not start Power light on 4 3 Unit stops 4 4 Unit overheats 4 5 Unit underheats 4 6 Pressure relief valve leaks 4 7 Cooling valve fault 5 0 MAINTENANCE 5 1 Pump seal replacement 5 2 Heating cylinder replacement 5 3 AVT modulating valve service 5 4 Probe calibration 5 5 Voltage changeover 5 6 Sensor probe service 5 7 Pressure switch service 5 8 Instrument service 5 9 Flow meter service 6 0 SENTRA COMPONENTS 6 1 Mechanical system 6 2 Electrical system ADVANTAGE ENGINEERING INC 525 East Stop 18 Road Greenwood Indiana 46142 317 887 0729 Fax 317 881 1277 Service Department Fax 317 885 8683 MAKING WATER WORK www AdvantageEngineering com Page 4 Temperature Control Units Sentra with HE Series Instrument 7 0 RELATED DRAWINGS 8 0 APPENDIX Sentra physical Sentra electrical Sentra circuit schematic Sentra regulator bypass installation Sentra dual zone dolly Sentra stacking rack Specifications Sentra Model and suffix coding Interpretation of process pressure gauges Mold purge operation Closed Circuit Operation DIP Switch Setup Advanced Instrument Use SPI commands Communications Cable Second setpoint operation Optional alarm operation AVT Valve Components Sentra AS5 pump parts list 1 2 HP to 1 HP Sentra AS5 pump parts list 1 1 2 HP to 3 HP Sentra parts list HE instrumen
27. ground Control circuit transformer fuse Figure 2 5C connections to the unit are properly affixed A proper connection to earth ground is required A conduit ground is not a reliable conductor Make certain the power conductor disconnecting means and fusing are properly sized according to the unit s power supply requirements Make certain all electrical connections are tightly affixed Any loose wiring connections must be tighten before engaging the power supply Make certain no moisture or standing water is present inside the electrical cabinet ADVANTAGE ENGINEERING INC Page 17 525 East Stop 18 Road Greenwood Indiana 46142 317 887 0729 Fax 317 881 1277 Service Department Fax 317 885 8683 MAKING WATER WORK www AdvantageEngineering com Temperature Control Units Sentra with Series Instrument Transformer Transformer Fuse Motor Contactor Power Entry ar Oke Instrument Pressure Heater Sensor Probe Connector Overload Reset Overload Relay Switch Contactor Connector ADVANTAGE ENGINEERING INC Page 18 525 East Stop 18 Road Greenwood Indiana 46142 317 887 0729 Fax 317 881 1277 Service Department Fax 317 885 8683 MAKING WATER WORK www AdvantageEngineering com Temperature Control Units Sentra with HE Series Instrument 3 0 OPERATIONS 3 1 GENERAL 3 2 MACHINE START UP OPERATIONS PROCEDURE 3 3 HE INSTRUMENT OPERATION 3 4 SHUT DOWN DISCONNECT PROCEDURE MAKING WATE
28. lt OFF OPEN RED 2ND SETPOINT BLACK 2ND SETPOINT CUSTOMER SUPPLIE Sentra SK HE with Remote and 2nd Setpoint DRY CONTACT Extended configuration display enable by SW 2 1 AFL Alternate Flow Sensor no Internal small flow sensor 3 yes X Alternate large flow sensor 1 Int NO Internal small flow sensor selected 2 SSS Calibration factor for small flow sensor 1 ALT YES Alternate large flow sensor selected 2 LLL Calibration factor for large flow sensor SP2 2nd Setpoint Enable Disable no Disable 2nd Setpoint 2 YES Enable 2nd Setpoint 1 Remote Setpoint Enable Disable 2 no Disable Remote Setpoint 2 YES Enable Remote Setpoint ADVANTAGE ENGINEERING INC Page 92 525 East Stop 18 Road Greenwood Indiana 46142 317 887 0729 Fax 317 881 1277 Service Department Fax 317 885 8683 MAKING WATER WORK www AdvantageEngineering com Temperature Control Units Sentra with HE Series Instrument 8 11 OPTIONAL ALARM OPERATION A The SENTRA HE and SENTRA LE are standard with a 110 volt AC alarm output The alarm output can be connected to customer provided alarm annunciation plant wide monitoring system or optional annunciation provided by ADVANTAGE BEACON ALARMS used when both visual and audible alarm annunciation is n
29. more than one second the value will increase slowly at first and then faster after about two seconds D TEMPERATURE DISPLAY igure 3 30 TEMPERATURE e e FROM SE Figure 3 3C 1 TO illuminates when the To Process water temperature is displayed and is the default setting of the Temperature display window 2 FROM illuminates when the From Process water temperature is selected Note The instrument will revert back to the To temperature display after 10 seconds if the From process temperature was selected and displayed and the instrument was left in that state Use the Select key to Scroll to the From display The From Process temperature will be displayed in the Temperature window 3 illuminates when the Celsius temperature display parameter is selected 4 F illuminates when the F Fahrenheit temperature display parameter is selected and is the default setting E SETUP DISPLAY 3 30 SETUP FLOW NETWORK MACHINE Figure 3 3D 1 Temp illuminates when the setpoint temperature is displayed and is the default display setting of the Setup display window 2 The setpoint temperature can be adjusted by a Use the Select key to index to the SP display in the Temperature window the Temp light is illuminated ADVANTAGE ENGINEERING INC Page 30 525 East Stop 18 Road Greenwood Indiana 46142 317 887 0729 Fax 317 881 1277 Service Department Fax 317 885 8683 MAKING WATER
30. or defective heating elements Heater Figure 5 2A D The operator should follow this procedure to replace the heater 1 MAKING WATER WORK Disengage operations and be certain all system pressure is relieved and the unit s pressure gauges read 0 Disengage main power supply Verify the Power light on the display is off Remove the lift off access panel and set aside Drain machine The machine can be drained by removing the pump casing drain plug Remove heater s junction box cover to located wiring connections The operator should map the wiring connections to ensure correct reinstallation figure 5 2B Disconnect the three power leads from the heater terminals Remove the power cord from the junction box Remove the 4 heater mounting bolts figure 5 2C Remove heater figure 5 2D ADVANTAGE ENGINEERING INC 525 East Stop 18 Road Greenwood Indiana 46142 317 887 0729 Fax 317 881 1277 Service Department Fax 317 885 8683 www AdvantageEngineering com Heater junction wires Figure 5 2B Heater mounting bolt Figure 5 2C Page 47 Temperature Control Units Sentra with Series Instrument 9 Before the new heater is installed the mating surface of the cast tank should be cleaned Once cleaned place the new heater gasket onto the tank mating surface Coat the mating surface with a high temperature gasket sealant Remove heater Figure 5
31. prompted by the instrument This is evident when power is engaged to ADVANTAGE ENGINEERING INC Page 49 525 East Stop 18 Road Greenwood Indiana 46142 317 887 0729 Fax 317 881 1277 Service Department Fax 317 885 8683 www AdvantageEngineering com DVANTAGE MAKING WATER WORK Temperature Control Units Sentra with Series Instrument the instrument The instrument will turn the motor in an attempt to find home base If no movement is observed most likely the motor gearbox assembly is defective To be certain remove the motor as outlined below maintain the electrical connection and supply power to the instrument If the motor does not turn the motor gearbox should be replaced If the motor does turn the operator can determine the valve assembly is defective 2 Valve assembly defective The valve assembly may become fouled with process debris or the internal components may be defective C The components of the AVT valve can be serviced separately To begin the AVT valve service procedure proceed with steps 1 5 1 Disengage process operations and verify all system pressure is relieved and the unit s pressure gauges read 0 2 Disengage main power supply and verify the Power light on the display is off 3 Remove the lift off access panel and set aside 4 Disconnect the valve wiring harness 5 Remove the AVT valve s drip cover D To service the motor driver gearbox components
32. support element in the pump motor assembly and is secured to the unit base figure 6 14 Electric Pump Figure 6 1A Pump adapter The pump Motor Adapter adapter is the mating element between the pump casing the electric motor The adapter is machined to accept the pump seal flush line The stationary pump seal member is set in the seal cavity of the pump adapter figure 6 14 Electrical motor The electric motor is a dual voltage 3 phase ODP motor The motor serves to turn the pump impeller creating process flow figure 6 14 Impeller The impeller is custom designed for the unit and creates the higher flow gpm from standard HP ratings figure 6 1B Impeller Figure 6 1B Pump Seal The pump seal prevents water leakage from the pump adapter The seal is made up of three items the stationary member seated in the seal cavity the rotating member placed on the motor shaft and the tension spring figure 6 1C shows the stationary member only Stationary member Figure 6 1C ADVANTAGE ENGINEERING INC Page 66 525 East Stop 18 Road Greenwood Indiana 46142 317 887 0729 Fax 317 881 1277 Service Department Fax 317 885 8683 MAKING WATER WORK www AdvantageEngineering com Temperature Control Units Sentra with HE Series Instrument 6 Pump seal flush The pump seal flush is a flow diverter which serves to cleanse the pump seal assembly of debris which may lodge on the seal
33. the home position At start up the instrument turns the valve until it finds the home position Once found it then knows how far to step the valve open and closed Home is established by two screws 180 apart on the valve coupling When the screw head raises the wheel on the home microswitch it closes the circuit to establish home position If the switch is not adjusted properly or is defective home base cannot be established and a fault will be displayed To resolve this fault see section 5 3 for AVT valve service ADVANTAGE ENGINEERING INC Page 38 525 East Stop 18 Road Greenwood Indiana 46142 317 887 0729 Fax 317 881 1277 Service Department Fax 317 885 8683 MAKING WATER WORK www AdvantageEngineering com Temperature Control Units Sentra with HE Series Instrument 4 3 UNIT STOPS A The operator should determine the main power supply to the unit is ON by an illuminated Power light on the display With the main power supply the unit will be prevented from starting by the following conditions 1 WATER PRESS light flashing red water supply pressure inadequate pressure switch is open The unit is prevented from operation without adequate water supply pressure by the electrical panel mounted pressure switch Sufficient water supply pressure must be present to close the switch 2 PUMP light flashing red motor overload switch opened The electric motor is protecte
34. to be connected in an SPI Protocol network is simple Each device must have a unique address for its device type and it must use the same data transfer rate as the other pieces of equipment in the network There are many acceptable ways used to set the device address and data rate ADVANTAGE equipment provides access to the information via the front panel operators and displays Other manufacturers may use internal DIP switches or jumpers A typical cell may be configured as follows Data Transfer Rate 9600 bits per second bps Mold Temperature Controller Qty 2 Addresses 1 and 2 Chiller Qty 1 Address 1 Note in the above example that different device types may have the same address This is because the SPI Protocol uses the device type as part of its internal address NETWORK TROUBLESHOOTING Troubleshooting a network is best done by verifying the setup of each piece of equipment and insuring that the network is installed with the correct electrical interconnection Here are some basic things to do if equipment isn t talking as expected 1 Verify that each piece of equipment is properly grounded to its power source ADVANTAGE ENGINEERING INC Page 88 525 East Stop 18 Road Greenwood Indiana 46142 317 887 0729 Fax 317 881 1277 Service Department Fax 317 885 8683 MAKING WATER WORK www AdvantageEngineering com Temperature Control Units Sentra with HE Series Instrument 2 DVANTAGE MAKING WATE
35. within the programmed settings ADVANTAGE ENGINEERING INC Page 33 525 East Stop 18 Road Greenwood Indiana 46142 317 887 0729 Fax 317 881 1277 Service Department Fax 317 885 8683 MAKING WATER WORK www AdvantageEngineering com Temperature Control Units Sentra with Series Instrument l MACHINE STATUS figure 3 39 MACHINE STATUS PROBE WATER HI PUMP VALVE PHASE PRESS OL Figure 3 3H 1 Machine status lights indicate the operating status of several machine components For each component A Solid Green light indicates an acceptable run condition A Flashing Red light indicates that the component is currently in an unacceptable run condition A Solid Red light indicates the component had once been in an unacceptable run condition but is now in an acceptable run condition A Flashing Red light can be cleared to a Solid Green light by pressing the Start key a indicates the status of the To Process and From Process sensor probes b WATER PRESS indicates the status of the water supply pressure switch HI TEMP indicates the status of the high temperature limit switch d PUMP OL indicates the status of the pump motor overload relay See section 3 2 paragraph C 2 for more information on the motor overload relay e VALVE indicates the status of the AVT modulating cooling valve f PHASE indicates the status of the electrical phasing of the unit See section 3 2
36. 17 887 0729 Fax 317 881 1277 Service Department Fax 317 885 8683 MAKING WATER WORK www AdvantageEngineering com Temperature Control Units Sentra with Series Instrument 2 1 GENERAL A All process piping materials such as hose rigid piping valves or filters used in process water piping circuitry must be rated for 350 F minimum temperature and 200 PSI minimum pressure B Be certain all process piping materials have the equivalent or larger diameter of the particular process connection Drain connection connect to one of the following depending on water supply source plant s open drain tower water system return chilled water system return To process connection connect to water in on process manifold From process connection connect to water out on process manifold Water supply connection connect to one of the following plant s city water source well water source tower water supply chilled water supply 2 2 TO AND FROM PROCESS CONNECTIONS A Connect the unit s To Process port to the Water In port on the process manifold B Connect the unit s From Process port to the Water Out port on the process manifold C Please note process water piping circuitry should be designed to avoid an excessive use of elbows and or lengths of pipe or hose If hose is the material of choice avoid tight twists or curls and excessive lengths D Valves and filters may be installed i
37. 3 53 7 DIMENSIONS inches Height 44 44 44 44 44 44 44 Width 16 16 16 16 16 16 16 Depth 24 24 24 24 24 24 24 CONNECTIONS inches a 174 19 4 1a 14 1 2 1 2 S D4 2000 h h Ma WEIGHT pounds Shipping 280 285 290 295 300 305 320 Notes 1 Derate heater output by 25 for 208 3 60 operation 2 Consult factory for 5Ohz operations 3 T to process F from process 4 S water supply D drain 5 Approximate unit shipping weight MAKING WATER WORK ADVANTAGE ENGINEERING INC 525 East Stop 18 Road Greenwood Indiana 46142 317 887 0729 Fax 317 881 1277 Service Department Fax 317 885 8683 www AdvantageEngineering com Page 80 Temperature Control Units Sentra with HE Series Instrument 8 2 HEATER KILOWATTS SENTRA MODEL AND SUFFIX CODING MODEL SUFFIX SK 1045 HE 4 1CX 6 6 KW 10 10 KW 16 16 KW 24 24 KW 36 36 KW GPM BY HP 35 35 GPM 3 4 HP 45 45 GPM 1 HP 65 65 GPM 1 1 2 HP 75 75 GPM 2 HP 90 90 GPM 5 HP 100 100 GPM 7 1 2 HP INSTRUMENTATION LE LE instrument HE HE instrument VOLTAGE 2 208 230 3 60 3 380 3 50 4 460 3 60 5 575 3 60 6 415 3 60 ELECTRICS 1 1 2 12 D VALVE SIZE None 1 4 3 8 1 2 3 4 Fat SPECIAL OPTIONS Consult factory for more information MAKI
38. 5 02 1840 8240000 Transformer 9T58B42 8764949 AVTTM Drive Kit for 3 8 and 5 8 Valves 977700 8764950 AVTTM Valve Body with Coupling 3 8 9060000 Pressure Relief Valve 150 ADVANTAGE ENGINEERING INC Page 97 525 East Stop 18 Road Greenwood Indiana 46142 317 887 0729 Fax 317 881 1277 Service Department Fax 317 885 8683 MAKING WATER WORK www AdvantageEngineering com THIS PAGE INTENTIONALLY BLANK Page 98 2009 ADVANTAGE ENGINEERING INC RE 3 11 09
39. ATURE CONTROLLER 5 2000 HE HE display Figure 3 3A 1 When the correct electrical power and adequate water supply pressure are supplied the unit can be started 2 When the electrical power supply is engaged the instrument figure 3 3A will momentarily illuminate all indicating lights and digits on the display After a short delay the controller software version number will be displayed in the Temperature window At this time the operator can verify that all lights and digits are functioning If an indicating light or digit does not illuminate the instrument must be removed and sent to the factory for repair 3 With electrical power supplied to the unit the Power light will illuminate Before the Start push button is pressed the display will remain dark expect for the Probe Valve and Phase lights which will be Solid Green if their conditions are OK This is the normal stop state of the instrument If the Probe Valve and Phase lights are Flashing the operator must determine the reason and correct a Probe Error a possible cause of a probe error is the probe service connection is wet Locate the 2 pin white plug service connection open and dry with compressed air If this does not remove the error indication inspect the probe wiring which ADVANTAGE ENGINEERING INC Page 26 525 East Stop 18 Road Greenwood Indiana 46142 317 887 0729 Fax 317 881 1277 Service Department Fax 317 885 8683 MAKING WATER
40. DVANTAGE ENGINEERING INC Page 16 525 East Stop 18 Road Greenwood Indiana 46142 317 887 0729 Fax 317 881 1277 Service Department Fax 317 885 8683 MAKING WATER WORK www AdvantageEngineering com Temperature Control Units Sentra with HE Series Instrument B NEMA 12 MODELS 1 Nema 12 units are designated by the letter J in the model number suffix These units are constructed with a dust tight electrical enclosure and branch circuit fusing Electrical power supply requirements are identified on the equipment data tag Verify that available voltage supply is the same as the unit s voltage requirements WARNING DO NOT CONNECT THE UNIT TO A VOLTAGE SUPPLY SOURCE NOT EQUAL TO THE UNIT S VOLTAGE REQUIREMENTS AS SPECIFIED ON THE UNIT S DATA PLATE Use of incorrect voltage will void the unit s warranty and cause a significant hazard that may result in damage to the unit or serious personal injury Appropriate conduit and fittings should be selected which will maintain the integrity of the cabinet Supply a power conductor sized according to the unit s power supply requirements Connect the power conductor to the unit s power supply entry terminal block C CONTROL CIRCUIT WIRING 1 D GENERAL 1 The unit s supplied control circuit is 110 volt 1 phase 60 cycle The control circuit is supplied by the factory installed transformer A control circuit fuse is provided figure 2 5C Make certain all
41. ENTRA HE CIRCUIT SCHEMATIC ae HEATER TO PROCESS PRESSURE GAUGE 1 55 PRESSURE VALVE gt A ZZA DRAIN INN eo Z AVT COOLING 4 C3 COUPLING AVT COOLING VALVE TO PROCESS BALL VALVE ASSEMBLY zr cm CJ a SENSOR PROBE W HIGH TEMPERATURE LIMIT NN MOTOR GEARBOX ASSEMBLY hy SUCTION TANK 4 FROM PROCESS SENSOR PROBE WATER SUPPLY Q N 2 m DISCHARGE TANK E Q A SEAL FLUS ADVANTAGE ENGINEERING INC Page 74 525 East Stop 18 Road Greenwood Indiana 46142 317 887 0729 Fax 317 881 1277 Service Department Fax 317 885 8683 MAKING WATER WORK www AdvantageEngineering com FROM PROCESS E lt 4 CONNECTION e AVT COOLING VALVE FLOW METER ROTOR HALL EFFECT SENSOR Temperature Control Units Sentra with HE Series Instrument 7 4 SENTRA REGULATOR BYPASS INSTALLATION TO PROCESS FROM PROCESS 52 9 DRAIN Y C CO sv x WATER PRESSURE REGULATOR VALVE SUPPLY TYPE WATTS U5B 1 2 BYPASS VALVE 25 75psi RANGE TYPE WATTS BP 30 1 2 45 100psi RANGE
42. F To adjust the process flow rate FLOW 9 e PUMP ON LPM a Determine the CARREY maximum flow rate e This is indicated by sno the last two digits www listed in the model Flow display window Figure 3 2F number of the unit The model number is on the unit s data plate For example if the model of the unit is SK 1035 35 indicates the pump s maximum flow rate 35 GPM The indicated flow rate should not be exceeded during operations If it is a possible overload condition may develop Refer to section 8 2 for additional information on the unit s model number b Start the unit and observe the indicated flow rate see section 3 3 of this manual for instrument operation instructions If the indicated flow is higher than the maximum flow rate for the unit a throttling valve must be installed in the from process water line The throttling valve can be a gate valve or a ball valve With the throttling valve installed fully close the valve and then engage the pump motor Slowly open the throttling valve and monitor the indicated flow rate until the flow rate is below the pump s maximum flow rate At this point the process flow is now correctly adjusted The valve should remain in this position during operations 4 An alternative method to set the process flow rate is to measure the pump motor amperage and adjust the process flow rate via the motor amperage a Open electrical cabinet panel door The pan
43. M ON OFF POLL SELECT C1C2 C1C2 COMMAND DESCRIPTION 204A 204B Protected mode machine 15 14 i2 e 7 6 s 4 2 1 0 POLL SELECT C1C2 C1C2 COMMAND MACHINE ON OFF ON OFF ALLOWED ALARM ACKNOWLEDGE DESCRIPTION 20 70 Temperature to process 20 72 Temperature from process 20 78 Flow rate from unit GPM 20 Blanket Poll Returns 20 30 Setpoint 20 32 High alarm deviation 20 34 20 40 20 70 ADVANTAGE ENGINEERING INC 525 East Stop 18 Road Greenwood Indiana 46142 317 887 0729 Fax 317 881 1277 Service Department Fax 317 885 8683 www AdvantageEngineering com MAKING WATER WORK Low alarm deviation Status process To process temperature Page 90 Temperature Control Units Sentra with HE Series Instrument 8 9 COMMUNICATIONS CABLE Common Jt J2 1 2 32 2 A3 32 3 TO RO JY 4 42 4 TO Rb 1 5 42 5 6 gt 22 6 gt a2 2 7 8 gt 2 8 9 gt 32 9 Termination Resistor Molding Machine or PC SKHE MTC SKHE SKHE MTC SPI MASTER SPI Auxiliary Slove SPI Auxillary Stave SP Auxillory Slove VERSION 3 01 MACHINE CONNECTIONS PRIMARY MACHINE CONNECTIONS SHIELD COMMON TERMINATION RESISTOR gt 2 lt RESISTOR CONNECTOR TERMINATION N His DB 9 FEMALE DB 9 FEMALE DB 9 FEMALE DB 9 FEMALE EIA485 DRIVER ELECTRDNICS JUMPER PLUG AUXILIARY MACHINE CONNECTIONS
44. NG WATER WORK ADVANTAGE ENGINEERING INC 525 East Stop 18 Road Greenwood Indiana 46142 317 887 0729 Fax 317 881 1277 Service Department Fax 317 885 8683 www AdvantageEngineering com Page 81 Temperature Control Units Sentra with Series Instrument 8 3 INTERPRETATION OF PROCESS PRESSURE GAUGES A READ AVAILABLE WATER PRESSURE AT UNIT S LOCATION When a temperature control unit is attached to the process with the water supply on and the pump off both gauges will read the water supply pressure at the unit s location figure 7 3A B READ PRESSURE DROP ACROSS PROCESS GP With the pump on the to process pressure gauge will rise to read the sum of the water supply pressure and pump generated pressure The from process pressure gauge reads the effect of water supply pressure and pump suction pressure The difference between the to and from process gauges is the pump generated circulating pressure which is also equal to the pressure drop across the process Pressure gauges Figure 7 3A C PUMP ROTATION INDICATION If the pump is running and both gauges are close to same value it is likely that the pump is rotating backward or the pump is generating such a high flow that an overload condition will result D PUMP MOTOR OVERLOAD CONDITION If the ZP is low with the pump rotating correctly then the flow rate is high which probably will result in a motor overload Refer to the representati
45. NT FFF FLOW CCC CAPACITY BN When the Select key is pressed the 1 and 2 display will cycle through the following combinations Display 3 and 4 will remain Flow and Capacity as above Where indicated with the value of display 2 can be modified by pressing the Up Arrow and Down Arrow push buttons If no keys are pressed within 5 seconds the display will return back to the normal To Process display NORMAL Display Mode 1 TO PROCESS temperature 2 555 SETPOINT local or remote SP2 if enabled FFF FROM process temperature 2 555 SETPOINT local or remote SP2 if enabled 1 5 Setpoint only when equals 2 555 SETPOINT local 0 to 250 1 SP Remote Setpoint Select Only when extended configuration is enabled 2 Loc Local Setpoint Enabled SP equals yes 2 REn Remote Setpoint Enabled 1 5 Local Setpoint Only when equals yes 2 SSS Local Setpoint Value SP Remote Setpoint Only when rSP equals yes 2 555 Remote Setpoint Value 1 SP2 2nd Setpoint Only when SP2 equals yes 2 SSS 2nd Setpoint offset 99 bounded by Setpoint HI High temp deviation limit 2 HHH limit 0 to 30 ADVANTAGE ENGINEERING INC Page 86 525 East Stop 18 Road Greenwood Indiana 46142 317 887 0729 Fax 317 881 1277 Se
46. OSED DIP SWITCH I i OFF OPEN ON default AVT valve operation is enabled The display will show Ho no OFF AVT valve operation is disabled The display will show yes Code Page Page 0 00000 0FFF Extended confriguration Disabled Valve Size iii Small Valve Remote Start ua q sm Disabled 1 2 em Heat Only os Disabled 1 2 5 m Heat Enabled L Remote Start Enabled Valve Size em Large Valve Extended Configuration Enabled Code Page amam Page 1 10000 1FFFF ADVANTAGE ENGINEERING INC Page 85 525 East Stop 18 Road Greenwood Indiana 46142 317 887 0729 Fax 317 881 1277 Service Department Fax 317 885 8683 MAKING WATER WORK www AdvantageEngineering com Temperature Control Units Sentra with HE Series Instrument 8 7 ADVANCED INSTRUMENT USE A DVANTAGE MAKING WATER WORK When the instrument powers up the display will go through a WOW mode where all LEDs are turned on for approximately 4 seconds The version will scroll from right to left in the first top and second display windows The display will then go into a Stop mode where all displays are OFF except the Probe Valve Phase and Power LEDs When the Start push button is pressed the instrument will enter the Run mode display as described below RUN mode display TTT TO process temperature SSS SETPOI
47. R WORK ADVANTAGE ENGINEERING INC 525 East Stop 18 Road Greenwood Indiana 46142 317 887 0729 Fax 317 881 1277 Service Department Fax 317 885 8683 www AdvantageEngineering com Page 19 Temperature Control Units Sentra with Series Instrument 3 1 GENERAL A Failure to follow the factory required operation procedures may adversely affect the unit s ability to adequately control process temperature and may create a hazardous operating condition which may result in unit damage or serious operator injury B The Operations segment of this manual is outlined below 3 2 3 3 3 4 Machine start up operations procedure follow this segment to start the unit after the initial installation or to restart the unit after reinstallation to the same or different process This section includes information on system fill electric motor phasing pump rotation and process flow adjustments HE instrument follow this segment to start up and operate the instrument This section includes information on automatic and manual venting setpoint selection and adjustment and feature explanations Shut down procedure follow this segment to shut down the unit This segment includes information on system cool down shut down electrical power supply precautions and disconnection from the system 3 2 MACHINE START UP OPERATIONS PROCEDURE A SYSTEM FILL 1 Engage the water supply source by opening the water suppl
48. R WORK Inspect cables inside and outside the electrical cabinet Repair or replace as necessary The cable scheme used by most manufacturers allows the communication signals to pass through each piece of equipment Therefore when a piece of equipment is disconnected from the middle of the network all the equipment after that one will be disconnected too If a piece of equipment is being permanently removed the device cables should be rearranged at the molding machine to reconnect the other equipment Check the Data Transfer Rate and Address of each piece of equipment For example if both Temperature Controllers have the same address they will both try to talk at the same time and garble each other s data Verify the network is properly terminated and that it is configured as a multi drop This is best achieved by following the molding machine manufacturer s installation instructions and use extension cables provided by them or us Attach each device singly to the molding machine and see if it talks Add additional devices until a problem is seen SENTRA SK Temperature CONTROLLER SPI COMMANDS POLL SELECT C1C2 C1C2 COMMAND DESCRIPTION 2020 2021 Echo Controller integrity command 20 20 Version Controller version command 20 30 2031 Setpoint Desired process temperature 2032 20 33 High temp Hi temperature deviation alarm 2034 2035 Low temp Low temperature deviation alarm 20 36 2037 Flow Ala
49. S5 Shaft seal 101 173 5 8 EPT Shaft seal EPT Ceramic 4949 AE5 AS5 MOTOR PUMP ASSEMBLY AS5 1HP AS5 2 4 3 60 Adapter iron C2 4551 AS5 Pump case iron D2 1839 AS5 Tank gasket 2 3 8 A 9159 AS5 Tank gasket 4 1 2 A2 8748 AS5 Impeller B2 5264 4 75 AS5 Motor AE5 AS5 A5W 1 HP S 2773R Nut 5 4989 AS5 O ring Case S 5091 55 Shaft seal 101 173 5 8 EPT Shaft seal EPT Ceramic 4949 AE5 AS5 ADVANTAGE ENGINEERING INC Page 95 525 East Stop 18 Road Greenwood Indiana 46142 317 887 0729 Fax 317 881 1277 Service Department Fax 317 885 8683 MAKING WATER WORK www AdvantageEngineering com Temperature Control Units Sentra with HE Series Instrument 814 SENTRA AS5 PUMP PARTS LIST 1 5 HP TO 3 HP PART 6207020 414 771599 3444400 3444401 4310604 4757864 5486522 5622271 6490000 6491000 6207030 414 771599 3444400 3444401 4310605 4757865 5486522 5622271 6490000 6491000 6207040 414 771599 3444400 3444401 4310605 4757866 5486522 5622271 6490000 6491000 DVANTAGE MAKING WATER WORK DESCRIPTION MOTOR PUMP ASSEMBLY AS5 1 5HP 2 4 3 60 Adapter iron 2 4551 55 Pump case iron D2 1839 AS5 Tank gasket 2 3 8 A 9159 AS5 Tank gasket 4 1 2 A2 8748 AS5 Impeller B2 5264 5 06 AS5 Motor AE5 AS5 A5W 1 1 2 5 27748 Nut S 4989 AS5 O ring Case S 5091 AS5 Shaft seal 101 173 5 8 EPT Shaft seal EPT Ceramic 4949 AE5 AS5 MOTOR PUMP ASSEMBLY 55 2HP 2 4 3 60 Adapter
50. Stop 18 Road Greenwood Indiana 46142 317 887 0729 Fax 317 881 1277 Service Department Fax 317 885 8683 www AdvantageEngineering com Temperature Control Units Sentra with Series Instrument 8 8 SPI COMMANDS A INTRODUCTION In 1987 a group of member companies of the Society of the Plastics Industries began development of communication protocol for use by their processing and auxiliary equipment Their goal was to allow the exchange of information between various pieces of equipment from different manufacturers to be simple and reliable The result of their work was released in 1990 and has made the interconnection of equipment much easier and straightforward There are now over 40 companies that offer the SPI Protocol in their products This document details the implementation of the SPI Protocol available in the SENTRA SK temperature controllers and MAXIMUM MK portable chillers with HE instruments PROTOCOL BASICS The SPI Protocol is described by a 2 part specification The largest portion of the SPI Protocol specification deals with how basic information is exchanged between equipment The second part of the specification details the actual pieces of information exchanged using the protocol Items such as Process Temperature Process Setpoint and Process Status are detailed in this part This FYI will list the commands that are supported by ADVANTAGE equipment EQUIPMENT SETUP The setup of equipment
51. TOOLING OR MOLD EXCESSIVE PIPE FITTINGS CHECK FOR WATER IN REPLACE PROBE PROBE CONNECTION SENTRA UNDERHEATS 1 PROCESS WATER roja CHECK FORA DEFECTIVE iae SAKING WATER PRESSURE LEAKAGE AVT COOLING VALVE RELIEF VALVE E HEATER ELEMENT ES REPLACE HEATER DEFECTIVE HEAT LOSS ves 4 CHECK FOR EXCESSIVE on dd DETERMINE IF UNIT UNIT RADIATION CAPACITY TOO LOW CONTROL PROBE 5 4 CHECK FOR WATER IN DEFECTIVE PROBE CONNECTION INSTRUMENT DEFECTIVE REPLACE ADVANTAGE ENGINEERING INC Page 7 525 East Stop 18 Road Greenwood Indiana 46142 317 887 0729 Fax 317 881 1277 Service Department Fax 317 885 8683 www AdvantageEngineering com DVANTAGE MAKING WATER WORK THIS PAGE INTENTIONALLY BLANK Page 8 Temperature Control Units Sentra with HE Series Instrument 1 0 GENERAL 1 1 SAFETY 1 2 EFFICIENCY 1 3 TYPICAL LABEL PLACEMENT 1 4 COMPONENT PLACEMENT ADVANTAGE ENGINEERING INC Page 9 525 East Stop 18 Road Greenwood Indiana 46142 317 887 0729 Fax 317 881 1277 Service Department Fax 317 885 8683 MAKING WATER WORK www AdvantageEngineering com Temperature Control Units Sentra with Series Instrument 1 1 SAFETY A It is important to become thoroughly familiar with this manual and the operating characteristics of the equipment
52. WORK www AdvantageEngineering com Temperature Control Units Sentra with HE Series Instrument The setpoint temperature value is displayed in the Setup window Use the Up Arrow or Down Arrow push buttons to select the value b When the instrument is in the default state To Process temperature display the operator may adjust the setpoint temperature with the Up Arrow or Down Arrow push buttons without using the select key if the instrument is in any other state i e the Network state Otherwise the operator must use the Select key to index to the Temp indication to adjust the setpoint 3 and LOW temperature alarm values are programmed by a Use the Select key to index to the display in the Temperature window the Temp light is illuminated The high temperature alarm value is displayed in the Setup window Use the Up Arrow or Down Arrow push buttons to select the value 1 30 units selectable b Use the Select key to index to the LO display in the Temperature window the Temp light is illuminated The Low Temperature Alarm value is displayed in the Setup window Use the Up Arrow or Down Arrow push buttons to select the value 1 30 units selectable 4 FLOW illuminates when the Flow Parameter is selected This is an alarm trigger Once the flow setting is programmed an alarm signal is generated if the flow decreases to the programmed value 30 seconds of flow stability must be maintained b
53. Y veo ad Drew LIGHT ON ON FUSE 5 5 WATER SUPPLY PRESSURE SWITCH OPEN PRESSURE LOW SUPPLY UNIT WITH 15 PSI ENGAGE POWER E MOTOR OVERLOAD RELAY OPEN E HIGH TEMP LIMIT SWITCH OPEN E INSTRUMENT DEFECTIVE REPLACE RESET OVERLOADS ADJUST PROCESS FLOW TEMPERATURE OVER 256 ALLOW UNIT TO COOL AAA SENTRA STOPS MAIN POWER SUPPLY Eie nct LIGHT ON 3 ON FUSE 5 4 WATER SUPPLY PRESSURE SWITCH OPEN PRESSURE LOW SUPPLY UNIT WITH 20 PSI ENGAGE POWER E MOTOR OVERLOAD RELAY OPEN E HIGH TEMP LIMIT SWITCH OPEN E INSTRUMENT DEFECTIVE REPLACE RESET OVERLOADS ADJUST PROCESS FLOW TEMPERATURE OVER 256 ALLOW UNIT TO COOL Cil SENTRA OVERHEATS INADEQUATE WATER SUPPLY PRESSRE E WATER SUPPLY PRESSURE MUST BE ISUFFICIENT FOR OPERATING TEMPERATURE AVT COOLING VALVE CHECK VALVE WIRE CLEAN REPLACE on 4 REPLACE MOTOR amp DEFECTIVE HARNESS BALL VALVE ASSEMBLY GEARBOXASSEMBLY DRAIN OBSTRUCTED DRAIN LINE VALVE LINE PRESSURE R LOW PROCESS FLOW RATE R CONTROL PROBE DEFECTIVE INSTRUMENT DEFECTIVE REPLACE CHECK FOR A CLOSED PROCESS VALVE OPEN23 CLOSED on 4 REDUCE HIGH DRAIN KINKED HOSE OR Tee WATER CHANNEL IN
54. ana 46142 317 887 0729 Fax 317 881 1277 Service Department Fax 317 885 8683 www AdvantageEngineering com Temperature Control Units Sentra with Series Instrument b Once the electrical power supply is disengaged reverse any two power leads of the power cord at the fused disconnect terminals operator must reverse the power leads at the disconnect only and not at the power entry terminals on the unit s electrical panel figure 3 2C The unit s internal Do not reverse power leads Figure 3 2C electrical System at the unit s power entry to Ben correct phase wiring is phased correctly at the factory and must not be altered in the field 4 To visually verify pump rotation press the Start button to engage the unit and observe the pressure gauges To Process pressure will indicate 35 50 PSI more than the From Process pressure In this state the pump rotation is correct clockwise If this is not evident the unit is not correctly phased and should be corrected as outlined in step 3 5 An alternate method of determining pump rotation is to visually inspect the rotation of the pump motor shaft a Supply electrical power to the unit by engaging the unit s disconnect switch Once the correct voltage is supplied to the unit the Power light on the display will illuminate b Remove the thermoformed cover panel and open the hinged electrical cabinet panel cover Note that the elect
55. and create a leak figure 6 1D HEATER The heater is a dual voltage flange mounted immersion heater set in the pump discharge Seal flush tube Figure 6 1D cylinder The heater elements have a stainless steel sheath Electrical supply to the heater is provided via a mercury contactor figure 6 1E HEATER PUMP DISCHARGE CYLINDER The heater pump discharge cylinder is a custom cast tank The tank is flanged mounted to the pump casing Reinforced machined bosses accept the to process high temperature limit sensor probe and the to process Heater Figure 6 1E connection figure 6 1E COOLING CYLINDER cooling cylinder is a custom cast tank The tank is flanged mounted to the pump casing Reinforced machined bosses accept the pressure relief valve the from process pressure gauge and pressure switch capillary connector AVT modulating cooling valve the water supply connection and the from process connection figure 6 1F Figure 6 1F PRESSURE RELIEF VALVE The pressure relief valve is a 150 psi relief valve serving to discharge excessive unit pressure to atmosphere The valve can be manually activated by lifting the actuating lever figure 6 1F VALVE The AVT valve is a patented Advantage design using a motor gearbox assembly to open in minute increments from to 100 a custom ball valve assembly The AVT valve is controlled by custom programm
56. andle removed to prevent operating the unit with a closed drain valve The valve handle can be reattached to Typical drain valve installation Figure 2 3A the valve body when it is necessary shown on 5 925 to close the valve figure 2 34 CAUTION the unit must never be operated with a closed drain line valve A closed drain line valve prevents adequate system cooling and will lead to unit overheating Overheating of the unit may lead to unit damage and or serious personal injury 2 5 ELECTRICAL CONNECTION A NEMA 1 MODELS 1 Electrical power supply requirements for Nema 1 units are identified on the equipment data tag Verify that available voltage supply is the same as the unit s voltage requirements WARNING DO NOT CONNECT THE UNIT TO A VOLTAGE SUPPLY SOURCE NOT EQUAL TO THE UNIT S VOLTAGE REQUIREMENTS AS SPECIFIED ON THE UNIT S DATA PLATE Use of incorrect voltage will void the unit s warranty and cause a significant hazard that may result in serious personal injury and or unit damage 2 For units with 10 and 16 KW heaters a four conductor cable 10 foot in length has been provided for connection to an operator supplied fused disconnect 3 For units with 24 and 34 KW heaters the operator must provide a four conductor power cable and the fused disconnect 4 The owner supplied fused disconnect must be sized and installed according to the unit s power supply requirements and local electrical codes A
57. ase where the instrument is determined to be defective the operator must remove the assembly according to instructions outlined in section 5 8 and return the assembly to the factory The instrument is not a field serviceable component 4 6 PRESSURE RELIEF VALVE LEAKS A The unit has a 150 psi pressure relief valve mounted in the cooling cylinder If the valve is found to be leaking the operator should check the following 1 Water supply pressure exceeds 75 psi The unit is designed to operate with water supply NOT exceeding 75 psi See section 2 3 paragraph B for specific water supply pressure requirements at corresponding setpoint temperatures If the plant water supply pressure exceeds 75 psi the pressure relief valve may leak Static water supply pressure can be determined at the unit s location by reading the unit s 0 160 PSI pressure gauges when the unit s motor pump is OFF If the water supply pressure at the unit s location exceeds 75 PSI a pressure reducing valve must be installed in the water supply line The factory ADVANTAGE ENGINEERING INC Page 41 525 East Stop 18 Road Greenwood Indiana 46142 317 887 0729 Fax 317 881 1277 Service Department Fax 317 885 8683 MAKING WATER WORK www AdvantageEngineering com Temperature Control Units Sentra with Series Instrument recommended regulated pressure out is 55 PSI Refer to section 7 4 for regulator installation drawing Back flow preve
58. ating member are aligned before the impeller is fully tightened and the impeller retaining Screw is reinstalled Stationary member Figure 5 1J 17 Clean the pump casing cavities impeller and O ring before reassembly 18 Mate the motor and adapter to the pump casing Reinstall the 4 pump casing bolts Rotating member Figure 5 1K 19 Reconnect the motor power cord and leads 20 Replace the thermoformed front panel and the lift off cover E When this procedure is complete the operator may restart the unit In many cases a new pump seal will experience a small amount of leakage for a short time This is normal After a few moments the new seal will take seat and the leak will stop Aligning impeller and spring Figure 5 1L ADVANTAGE ENGINEERING INC Page 46 525 East Stop 18 Road Greenwood Indiana 46142 317 887 0729 Fax 317 881 1277 Service Department Fax 317 885 8683 MAKING WATER WORK www AdvantageEngineering com Temperature Control Units Sentra with HE Series Instrument 5 2 HEATING CYLINDER REPLACEMENT A The heater is a flange mounted assembly and inserted into the cast cylinder tank and secured by 4 bolts figure 5 2A B The operator can determine if the heater requires replacement when the heater draws 0 amps or when a continuity check of each heater element is negative C Generally heaters fail due to low water flow low water pressure air in the system
59. d from overload conditions by a set of thermal overload relays These relays will open trip If the overload relay is open it must be reset before operation can continue An excessive flow condition must be isolated and corrected immediately 3 HI TEMP light flashing red high temperature limit switch open The unit is prevented from operations at temperatures exceeding 256 by a high temperature limit switch This switch is installed in the To Process temperature sensor If this switch is open due to a high temperature condition the unit cannot be started and must cool down before the high temperature limit switch will automatically reset The operator should check the Power light on the display The operator should check the following conditions 1 One or more fuses at the main disconnect device are open blown Determine continuity at each fuse If continuity is not determined replace the fuse Then determine cause of blown fuse 2 Control circuit transformer fuse is open blown Determine continuity at the control circuit transformer fuse If continuity is not determined replace the fuse 4 4 UNIT OVERHEATS A This is evidenced by To Process temperatures consistently above the selected setpoint temperature Overheating is also evidenced by a To Process temperature that continues to escalate above the setpoint temperature with no apparent cooling action even though the Cool light is on Extreme ov
60. diana 46142 317 887 0729 Fax 317 881 1277 Service Department Fax 317 885 8683 MAKING WATER WORK www AdvantageEngineering com Temperature Control Units Sentra with HE Series Instrument 5 0 SERVICE MAINTENANCE 5 1 PUMP SEAL REPLACEMENT 5 2 HEATING CYLINDER SERVICE 5 3 AVT COOLING VALVE SERVICE 5 4 PROBE CALIBRATION 5 5 VOLTAGE CHANGEOVER 5 6 SENSOR PROBE SERVICE 5 7 PRESSURE SWITCH SERVICE 5 8 INSTRUMENT SERVICE 5 9 FLOW METER SERVICE ADVANTAGE ENGINEERING INC Page 43 525 East Stop 18 Road Greenwood Indiana 46142 317 887 0729 Fax 317 881 1277 Service Department Fax 317 885 8683 MAKING WATER WORK www AdvantageEngineering com Temperature Control Units Sentra with Series Instrument 5 1 PUMP SEAL REPLACEMENT A The pump seal is a carbon ceramic shaft seal assembly including a stationary member rotating member and tension spring figure 5 14 B The life cycle of the pump seal is Rotating Member Tension Spring determined by hours of Stationary member Figure 5 1 use operating temperature and water quality Poor water quality is the primary reason for premature pump seal failure D The operator should follow this procedure to replace the pump seal 1 Disengage process operations and relieve all system pressure 2 Disengage main power supply Verify the Power light on the display is off 3 Remove the lift off access panel and set aside Figure 5 1B
61. e motor amps as displayed on the amp meter until the actual motor amps equal the listed full load amp rating of the motor The process flow is now correctly adjusted The valve should remain in the position during operations 5 LOW PROCESS FLOW The minimum recommended process flow rate is 10 GPM The flow indicator will not accurately read below 5 GPM Process restrictions may limit the flow to less than 10 GPM We recommend the addition of bypass lines to raise the flow rate to 10 GPM The best place to add bypass lines are on the extra ports on the molding machine manifold If these extra ports are not available add a tee in the To Process and From Process lines install a bypass line between the two tees with a throttling valve Adjust the valve for a minimum of 10 GPM Some models offer an internal bypass and it is not necessary to add a bypass on the manifold ADVANTAGE ENGINEERING INC Page 25 525 East Stop 18 Road Greenwood Indiana 46142 317 887 0729 Fax 317 881 1277 Service Department Fax 317 885 8683 MAKING WATER WORK www AdvantageEngineering com Temperature Control Units Sentra with HE Series Instrument 3 3 HE INSTRUMENT OPERATION A START UP TEMPERATURE e FROM FLOW NETWORK MACHINE FLOW e PUMP ON LPM CAPACITY COOL PROCESS MACHINE STATUS COMM ALARM TEMP FLOW PROBE WATER HI PUMP VALVE PHASE DEV PRESS TEMP OL TEMPER
62. eeded The ADVANTAGE beacon is an integral light and buzzer assembly to provide high visibility in a busy noisy shop The beacon will signal until the alarm condition is acknowledged by the operator AUDIBLE ALARMS provide a loud signal when an alarm condition is present The ADVANTAGE audible alarm is mounted on the from cover of the SENTRA CONDITIONS THAT TRIGGERED AN ALARM OUTPUT ON SENTRA MOLD Temperature CONTROLLERS CONTROLLER CONDITION HE LE Incorrect 38 power entry Yes No Pump overload tripped Yes Yes High temperature fault Yes Yes Water supply pressure fault Yes Yes Temperature deviation Yes Yes valve malfunction Yes Yes Sensor probe malfunction Yes Yes BEACON AND AUDIBLE ALARMS ARE SILENCED DURING AN ALARM CONDITION BY PRESSING THE START BUTTON ON MICROPROCESSOR CONTROLLER ADVANTAGE ENGINEERING INC Page 93 525 East Stop 18 Road Greenwood Indiana 46142 317 887 0729 Fax 317 881 1277 Service Department Fax 317 885 8683 MAKING WATER WORK www AdvantageEngineering com Temperature Control Units Sentra with Series Instrument 8 12 AVT VALVE COMPONENTS Cooling Cylinder 188 32 Lock Nut 55 gt a 5 IZ Ta opo NG 0 OH xg gt 28 oF 25 zm os Os gt 9 gt go gt gt 5 Sez k asia S 52 o8 2 NO x0
63. efore the controller will arm the flow alarm Use the Select key to index to the LoF display in the Temperature window the Flow light is illuminated The value is displayed in the Setup window Use the Up Arrow or Down Arrow push buttons to select the value 0 999 units selectable 5 NETWORK illuminates when the Communications Parameters are selected Available are Communications Address Baud Rate and Protocol a Communication Address this is the number assigned to the unit in a network Use Select to scroll to the Adr display in the Temperature window the Network light is illuminated The value is displayed in the Setup window Use the Up Arrow or Down Arrow push buttons to select the value 1 99 units selectable ADVANTAGE ENGINEERING INC Page 31 525 East Stop 18 Road Greenwood Indiana 46142 317 887 0729 Fax 317 881 1277 Service Department Fax 317 885 8683 MAKING WATER WORK www AdvantageEngineering com Temperature Control Units Sentra with Series Instrument b Baud rate this is the data transfer rate of between the unit and the host computer Use Select to scroll to the rAt display in the Temperature window the Network light is illuminated The value is displayed in the Setup window Use the Up Arrow or Down Arrow push buttons to select the value 1200 2400 4800 9600 units selectable Protocol this is the data format for communication between the unit and the host computer Use Select
64. el cover is hinged and held open by a support cable Note that the electrical power is engaged at this point and caution must be observed while the cabinet panel is open b Identify the motor starter block This block consists of the motor starter contactor and the overload relay ADVANTAGE ENGINEERING INC Page 24 525 East Stop 18 Road Greenwood Indiana 46142 317 887 0729 Fax 317 881 1277 Service Department Fax 317 885 8683 MAKING WATER WORK www AdvantageEngineering com Temperature Control Units Sentra with HE Series Instrument Place amp meter a single power lead emanating from the overload relay d Locate the motor name plate on the pump motor housing figure 3 2G The full load amp rating for the motor is listed on the name plate e Engage the electrical power supply and start the electrical Motor name plate Figure 3 2G pump motor by pressing the Start push button f The amp meter will display the motor amps Compare the actual motor amps as displayed on the amp meter to the full load amp rating as listed on the motor name plate g If the amp draw is excessive higher than the listed name plate amp rating a throttling valve must be installed in the from process water line The throttling valve can be a gate valve or a ball valve h With the throttling valve installed fully close the valve and then engage the pump motor Slowly open the throttling valve and monitor th
65. er Flange Gasket 4 50 OD 4440100 Instrument Kit Complete Sentra 2000 247200 752000 Remote Display Cable 20ft 239920 752976 Cable Kit for Oversize Units 247402 4360096 Temperature Sensor Threaded Body 910500 4405004 Three Phase Sensor 934100 4406003 Temp Sensor High Temp Limit 230400 4406013 SK HE Flow Sensor Cable 979800 4406014 SK HE Probe Cable 979900 4406015 SK HE AC Cable 979700 4440002 Sentra 2000HE Instrument Only 239300 4440097 Instrument MK RK SK HE 239300 4440099 Remote Display 239600 7163580 Electronic Filter Quench Arc 933400 6207000 Motor Pump Assembly AS5 3 4HP ODP 230 460 414 Adapter Iron C2 45551 55 771599 Pump Case Iron 137 001 166 AS5 3444400 Tank Gasket 2 2 3 A 9159 AS5 3444401 Gasket Tank Flange 4 1 2 AS5 4310602 Impeller B2 5264 4 5 55 4310611 Impeller 55 100345 4 5 MFG after 2 97 4714466 Motor 3 4HP 113 000 354T 2 4 3 60 4757862 Motor AS5 ABW 3 4HP S 2772R 5486522 Nut 5 4989 55 5622271 O Ring Case 116 000 252 6490000 Pump Seal Niresist 5 8 6491000 Pump Seal Ceramic 5 8 6748201 Cap Screw 102RO3A2 9118502 Impeller Washer 100301 6671005 Ring 30455 Flow Meter Mount 6745560 Rotor Magnet 4 Pole with Bronze Bearing 6930100 Flow Sensor 17762N 7274530 Spindle 30355 7370000 Motor Starter CR35AB3AA1B 1733456 Auxiliary Contact Kit 353XAAA 7541100 Panel Mount Pressure Switch 82681 7732250 Heater Cylinder AS5 02 1841 7732260 Cooling Cylinder AS
66. erheating is evidenced by To Process temperatures over 256 F The operator should check for the following conditions ADVANTAGE ENGINEERING INC Page 39 525 East Stop 18 Road Greenwood Indiana 46142 317 887 0729 Fax 317 881 1277 Service Department Fax 317 885 8683 MAKING WATER WORK www AdvantageEngineering com Temperature Control Units Sentra with Series Instrument 1 Inadequate water supply pressure The unit must be supplied with adequate water flow to provide cooling when required The minimum pressure differential between the water supply and drain to achieve full cooling capacity is 10 PSI The minimum water supply pressure is 20 PSI A drop in water supply pressure operation will cause the pump to stop and a safety fault to be displayed 2 AVT valve defective The instrument opens and closes the AVT cooling valve in incremental steps between 0 to 100 as prescribed by the current process load continual discharge stream of process water to drain is present under most operating conditions except at full heat up This allows the unit to maintain virtual straight line control of process water temperature If the AVT valve becomes clogged with process water debris or scaled with mineral deposits its operation is hindered or fully prevented and adequate process water discharge to drain is prevented The operator must remove the AVT valve and remove any loose debris Massive debris or scale deposi
67. he fuse 4 2 UNIT WILL NOT START POWER LIGHT IS ILLUMINATED A Power supply is ON The operator can determine that electrical power supply to the unit is by an illuminated Power light on the display Even with the main power supply on the unit is prevented from operating by one of the following conditions 1 WATER PRESS light flashing red water supply pressure inadequate pressure switch is open The unit is prevented from operation without adequate water supply pressure by the electrical panel mounted pressure switch Sufficient water supply pressure must be present to close the switch PUMP light flashing red motor overload switch opened The electric motor is protected from overload conditions by a set of thermal overload relays These relays will open trip If the overload relay is open it must be reset before operation can continue An excessive flow condition must be isolated and corrected immediately HI TEMP light flashing red high temperature limit switch open The unit is prevented from operations at temperatures exceeding 256 F by a high temperature limit switch This switch is installed in the To Process temperature sensor If this switch is open due to a high temperature condition the unit cannot be started and must cool down before the high temperature limit switch will automatically reset VALVE light flashing red indicates the valve is not able to find
68. hermoformed front panel and open the electrical cabinet panel door Unplug the instrument connectors to fully extend the hinged panel ADVANTAGE ENGINEERING INC Page 55 525 East Stop 18 Road Greenwood Indiana 46142 317 887 0729 Fax 317 881 1277 Service Department Fax 317 885 8683 MAKING WATER WORK www AdvantageEngineering com Temperature Control Units Sentra with Series Instrument 6 Rewire the pump motor for the new voltage Most Sentra pump motors are dual voltage Figure 5 5B shows the wiring schematic for 230 and 460 voltages 208 230 460 480 Wiring schematics for 230 and 460 volt pump motors Figure 5 5B T Rewire the transformer to the proper voltages a shown by the schematic on the transformer figure 5 5C 8 Replace the motor overloads with a set sized for the proper current draw figure 5 5D The motor overload heaters must be Transformer Figure 5 5C sized for the proper voltage and current draw being used 9 Once a voltage change is complete be certain the unit is properly connected to the voltage supply as outlined in section 2 5 of this manual Restart unit operations according to section 3 of this manual Motor overloads Figure 5 5D ADVANTAGE ENGINEERING INC Page 56 525 East Stop 18 Road Greenwood Indiana 46142 317 887 0729 Fax 317 881 1277 Service Department Fax 317 885 8683 MAKING WATER WORK www AdvantageEngineering com Temperature Control
69. hold the shaft stationary figure 5 1G Locate and remove impeller locking screw figure 5 1H Using a socket and ratchet the impeller retaining screw can be removed Once removed the impeller can be unthreaded from the motor shaft to expose the pump seal assembly Remove all seal parts figure 5 11 Note seal component arrangement to facilitate reassembly Clean the motor shaft and lubricate with a mild soap solution Note oil must never be used as a lubricant as it will damage the rubber parts of the seal assembly ADVANTAGE ENGINEERING INC 525 East Stop 18 Road Greenwood Indiana 46142 317 887 0729 Fax 317 881 1277 Service Department Fax 317 885 8683 www AdvantageEngineering com Pump casing bolts Figure 5 1E Impeller Motor shaft Figure 5 1G Removing impeller locking screw with ratchet Figure 5 1H Page 45 Temperature Control Units Sentra with Series Instrument 13 Install new stationary seal member in pump casing cavity figure 5 1J Be certain the stationary seal member is fully squared and seated in cavity 14 Slide the rotating member onto the lubricated pump shaft figure 5 1K Be certain not to damage or Seal components Figure 5 11 tear the rubber bellows assembly 15 Place the spring onto the rotating member 16 Align the tension spring and rotating member before reinstalling the impeller figure 5 1L Be certain the spring and rot
70. igh temperature limit safety switch is a part of the to process sensor probe To replace any sensor probe follow the procedure as outlined below a Stop process operations as described in section 3 4 of this manual b Determine that all process pressure is relieved and the unit s pressure gauges read 0 pressure Drain the unit removing the pump casing plug The unit can be drained only to below the sensor probe mount if preferred d Disconnect the sensor probe service plug e Using a crescent wrench remove the sensor probe ADVANTAGE ENGINEERING INC Page 57 525 East Stop 18 Road Greenwood Indiana 46142 317 887 0729 Fax 317 881 1277 Service Department Fax 317 885 8683 MAKING WATER WORK www AdvantageEngineering com Temperature Control Units Sentra with Series Instrument from the cylinder To install a new sensor probe continue as follows f The new sensor probe threads should be lined with teflon tape and coated with leak preventative sealant Using a crescent wrench thread the new sensor into the machined boss of the cylinder g Reconnect the service connection Restart the unit as outlined in section 3 of this manual ADVANTAGE ENGINEERING INC Page 58 525 East Stop 18 Road Greenwood Indiana 46142 317 887 0729 Fax 317 881 1277 Service Department Fax 317 885 8683 www AdvantageEngineering com DVANTAGE MAKING WATER WORK Temperature Control Uni
71. in of the rotor and the instrument interprets and SES Figure 6 111 displays the flow figure 6 1H 6 2 ELECTRICAL SYSTEM A INSTRUMENT The instrument is a custom designed and assembled microprocessor controller The instrument is mounted to the electrical panel cover The instrument controls the cycling of the heater motor pump and AVT valve System and setpoint temperatures are displayed continually System parameters are programmable figure 6 2A Typical instrument with Service connections B TRANSFORMER The transformer supplies 110 volts to the controlling instrument figure 6 2B Figure 6 2A C MOTOR STARTER OVERLOAD RELAY The electrical motor is engaged when the motor starter contacts close on command by the instrument The electric motor is protected from excessive amperage by a set of thermal overload relays which open when excessive amperage heats the overloads and the relay opens figure 6 2B ADVANTAGE ENGINEERING INC Page 68 525 East Stop 18 Road Greenwood Indiana 46142 317 887 0729 Fax 317 881 1277 Service Department Fax 317 885 8683 MAKING WATER WORK www AdvantageEngineering com Temperature Control Units Sentra with Series Instrument D DVANTAGE MAKING WATER WORK HEATER CONTACTOR The heater contactor is a mercury contactor On command from the instrument the mercury contactor will close and voltage will be supplied to the heater figure
72. ing of the instrument figure 6 1F PRESSURE GAUGES and from process pressure gauges display the system pressure To process pressure originates at the heat pump discharge cylinder From process pressure originates at the cooling cylinder The gauges accurately display system pressures from 0 to 160 PSI figure 6 1G ADVANTAGE ENGINEERING INC Page 67 525 East Stop 18 Road Greenwood Indiana 46142 317 887 0729 Fax 317 881 1277 Service Department Fax 317 885 8683 MAKING WATER WORK www AdvantageEngineering com Temperature Control Units Sentra with Series Instrument H CASTERS The unit is mounted on 4 swivel ball bearing casters The casters allow the unit to be portable and easily move from location to location STAINLESS STEEL CABINETRY The stainless steel cabinetry prevents unsightly rust and metal decay The electrical cabinet cover is hinged The unit base is made of Figure 6 1G pressed steel with galvanized zinc coating The lift off access panel is secured to the unit base by 5 screws figure 6 1G Hall effect sensor Magnetic rotor J FLOW METER The flow meter is an assembly made of non ferrous material designed to detect and display process flow A rotor with 4 magnetic poles with a bronze bearing spins on a stainless steel spindle ring assembly This assembly is set inside the cooling cylinder The rotor spins with the process flow A hall effect sensor records each sp
73. low Meter Figure 5 9B casing 4 Disconnect the AVT valve cable the hall effect sensor cable the pressure gauge and pressure switch lines 5 Remove the 4 mounting bolts that hold the cooling cylinder to the pump volute Lift the cooling cylinder vertically off the ADVANTAGE ENGINEERING INC Page 62 525 East Stop 18 Road Greenwood Indiana 46142 317 887 0729 Fax 317 881 1277 Service Department Fax 317 885 8683 MAKING WATER WORK www AdvantageEngineering com Temperature Control Units Sentra with HE Series Instrument 10 11 12 PM to expose the Magnetic rotor magnetic rotor assembly Inspect the magnetic rotor for damage or accumulation of debris and contaminants Clean or replace the rotor as necessary figure 5 9C The magnetic rotor may be detached from the spindle by removing the lock nut Clean the tip of the hall effect sensor The sensor is mounted in the cooling cylinder Stainless steel spindle Figure 5 9C Clean the spindle and ring assembly Stainless steel ring The pump casing provides a recessed mounting for the magnetic rotor assembly When reassembling the cooling cylinder to the pump casing be certain the stainless steel ring and magnetic rotor assembly is secured in the recess mounting Care should be taken when reinstalling the cooling cylinder as not to disturb the alignment of the magnetic rotor assembly Replace the tank gasket Reinstall the 4 mounting
74. mold purge kits are supplied as a factory installed option or a field retrofitted kit B The operation of the mold purge is as follows see illustration 1 Stop the pump maintain electrical power to unit AIR AND WATER MOVEMENT DURING MOLD PURGE OPERATION 2 Close the water supply ball valve 3 Connect a regulated air supply to lt mold purge compressed air B connection Me PP R R s D u Note air supply should be P regulated approximately 10 PSI A SS v above drain line pressure 4 Activate mold purge with button located on electrical cabinet 5 When water is purged disconnect air supply 6 Depress and hold vent button approximately 30 seconds to release air pressure T Disconnect power to unit LINE TO DRAIN CHECK VALVE prevents compressed air from purging unit DRAIN CONNECTION AVT VALVE closed to prevent purge of unit MOLD PURGE SWITCH turns on off mold purge feature Located on electrical cabinet WATER SUPPLY CONNECTION valve must be closed during mold purge operation FROM PROCESS CONNECTION TO PROCESS CONNECTION CHECK VALVE prevents water bleed to air line during normal run cycle COMPRESSED AIR CONNECTION SOLENOID VALVE opens to allow compressed air to enter during mold purge operation SOLENOID VALVE opens to purge water to drain ADVANTAGE ENGINEERING INC Page 83 525 East Stop 18 Road Gree
75. n the process water piping circuitry to facilitate service and maintenance provided that such devices maintain the full inside diameter of the process connection If installed all such devices must be open and clean during unit operation ADVANTAGE ENGINEERING INC Page 14 525 East Stop 18 Road Greenwood Indiana 46142 317 887 0729 Fax 317 881 1277 Service Department Fax 317 885 8683 MAKING WATER WORK www AdvantageEngineering com Temperature Control Units Sentra with Series Instrument 2 3 2 4 WATER SUPPLY CONNECTION A Connect the unit s Water Supply port to the plant s city water well water tower water or chilled water supply B Water supply pressure requirements vary with operating temperatures Figure 2 2A shows the required operating water supply pressures for various operating process temperatures The required water supply pressure retains process water in a liquid state at temperatures over 180 F Failure to maintain the required water supply pressure will cause premature failure of and increase maintenance in susceptible areas such as the shaft seal and heater OPERATING TEMPERATURE 180 F 1909 2009 21005 220 2305 240 F 250 F 20PSI 25PSI 30PSI 35PSI 40PSI 45PSI 50PSI 55PSI WATER SUPPLY PRESSURE Figure 2 2A C The factory recommended minimum operating water supply pressure requirement is identified on the unit s data tag figure 2 2B D Static water supply pressure can be
76. njury or death to operating personnel and damage to the unit could result if a hot and pressurized unit is disconnected from the system B UNIT SHUT DOWN without system disconnect 1 Adjust the setpoint temperature to 32 F The instrument will disengage the heater contactor if engaged and fully open the AVT valve Operate the unit until process temperature as indicated on the Temperature display is at the ambient water supply temperature or below 85 F Stop unit operations by pressing the Stop push button Disengage the water supply to the unit by closing the water supply valve if installed or by turning off the water supply source at the central control point If any residual pressure is evident open the pressure relief valve figure 3 4A to dissipate Pressure relief valve Figure 3 4A ADVANTAGE ENGINEERING INC Page 35 525 East Stop 18 Road Greenwood Indiana 46142 317 887 0729 Fax 317 881 1277 Service Department Fax 317 885 8683 MAKING WATER WORK www AdvantageEngineering com Temperature Control Units Sentra with Series Instrument 4 Disengage the power at the fused disconnect Determine the Power light on the display is OFF 5 Before disconnecting and removing the process circuitry be certain all system pressure is vented and the pressure gauges read 0 When the process circuitry is disconnected and removed from the unit a small amount of water will be discharged from the
77. ntion device in water supply line If a back flow prevention device check valve pressure regulator closed valve is installed in the water supply line increased pressures from thermal expansion are unable to move into the water supply line This will increase the unit s internal pressure causing the pressure relief valve to leak Refer to section 7 4 for regulator installation drawing Valve contamination The pressure relief valve may become contaminated with water debris causing the valve not to close properly If this is the case flushing the valve for a moment will cleanse the seat and allow it to work properly If flushing the valve does not remedy the leaking the valve must be replaced Extreme internal system pressure If the internal pressure in the Sentra unit is elevated the pressure relief valve will leak as a safety measure to dissipate excessive pressure If this is the case the operator must determine why the system internal pressure is excessive and correct the condition 4 7 COOLING VALVE FAULT A AVT FAULT When power is applied the AVT valve begins a homing process The valve is turned forward and backward across a limit switch to establish the valve position If valve position cannot be established a fault will be displayed in the Temperature display window as ULU Refer to section 5 3 for AVT service and repair instructions ADVANTAGE ENGINEERING INC Page 42 525 East Stop 18 Road Greenwood In
78. nwood Indiana 46142 317 887 0729 Fax 317 881 1277 Service Department Fax 317 885 8683 MAKING WATER WORK www AdvantageEngineering com Temperature Control Units Sentra with Series Instrument 8 5 CLOSED CIRCUIT OPERATION A TO PROCESS BYPASS VALVE Standard Sentra SK mold temperature controllers are supplied as open circuit units SK units can be used on closed circuit applications with the installation of the SE kit Factory installed SE kits place a heat exchanger into system to separate the cooling water loop from the process circulation loop Cooling water from plant water supplies circulate only through the tube side of the heat exchanger Process water circulates through the shell side of the heat exchanger To control process water temperature a microprocessor controlled AVT modulating valve is installed on the heat exchanger drain line The closed circuit kit will add 10 to the overall height of the unit The width and depth do not change although the length of connection hose extending from the back of the unit N must be accounted for A 55 v3 IM p 1 I EOM PROCESS ki WATER cc SUPPLY DRAIN
79. ory should be installed by continuing with step 7 Thread one 1 2 nut onto the pressure switch and then place the pressure switch through the panel in the original mounting hole Thread the second 1 2 nut from the bottom of the pressure switch Tighten to lock the pressure switch in place Install the brass elbow fitting Teflon tape and leak preventative paste should be used to prevent water leakage Install the capillary tube and resume operations ADVANTAGE ENGINEERING INC Page 59 525 East Stop 18 Road Greenwood Indiana 46142 317 887 0729 Fax 317 881 1277 Service Department Fax 317 885 8683 MAKING WATER WORK www AdvantageEngineering com Temperature Control Units Sentra with Series Instrument 5 8 INSTRUMENT SERVICE A The instrument controller is a microprocessor based instrument designed to cycle the heater and AVT modulating cooling valve to maintain process temperature at setpoint figure 5 8A B The instrument is not a field serviceable component If the instrument is determined to be in need of repair the operator must Sentra HE instrument Figure 5 8A remove the assembly and return it to the factory for repair C To service the instrument take the following steps 1 Disengage process operations according to the procedure outlined in section 3 4 The operator must be certain all System pressure is relieved and the unit s pressure gauges read 2 Disengage main power s
80. p 18 Road Greenwood Indiana 46142 317 887 0729 Fax 317 881 1277 Service Department Fax 317 885 8683 MAKING WATER WORK www AdvantageEngineering com Temperature Control Units Sentra with Series Instrument 7 1 SENTRA PHYSICAL Left Side View 19 1 2 Left Side View To Process Instrument 1 fX Drain Pressure Gauges From Process 26 5 8 Water Supply DOODOODONOOOODO 000 000000000000 1 Rear View Right Side View 12 1 2 ADVANTAGE ENGINEERING INC Page 72 525 East Stop 18 Road Greenwood Indiana 46142 317 887 0729 Fax 317 881 1277 Service Department Fax 317 885 8683 MAKING WATER WORK www AdvantageEngineering com SENTRA ELECTRICAL 7 2 Temperature Control Units Sentra with HE Series Instrument X18W3SSV 3ATVA Page 73 HOH 38OHd SS300Hd WOH4 55300 8 OL LAV H313W MOTH LL YOSNAS 193443 LER JENG 2506565 e 29852
81. paragraph B for more information J COMMUNICATION DISPLAY igure 3 31 1 This display indicates the kind of exchange between the host computer and the unit A single light is used a GREEN FLASH indicates the unit is sending information to the host computer Figure 3 31 ADVANTAGE ENGINEERING INC Page 34 525 East Stop 18 Road Greenwood Indiana 46142 317 887 0729 Fax 317 881 1277 Service Department Fax 317 885 8683 MAKING WATER WORK www AdvantageEngineering com Temperature Control Units Sentra with HE Series Instrument b YELLOW FLASH indicates the host computer is sending information to the unit K ALARM DISPLAY figure 3 33 1 ALARM when Solid an unacceptable ALARM condition has developed A 115 volt alarm output is provided for external factory or customer installed alarm beacon or buzzer The alarm can be silenced by pressing the Start push button Figure 3 3J 3 4 SHUT DOWN DISCONNECT SEQUENCE A PRECAUTIONS WARNINGS 1 The operator must precisely follow all shut down procedures outlined in this manual If the operator fails to do so an unsafe condition can develop resulting in damage to the unit or injury and or death to operating personnel When disconnecting the unit from the process system the operator must determine the unit s process temperature is at ambient or below 85 F and all system pressure is relieved and the unit s pressure gauges read 0 I
82. rical power is engaged at this point and caution must be observed while the electrical supply is engaged and the cabinet panel is open Locate the electric motor figure 3 2D and identify the motor shaft inside the electric motor housing The motor shaft can be seen through the vent Remove shaft cover to view Figure 3 2D the motor shaft ADVANTAGE ENGINEERING INC Page 22 525 East Stop 18 Road Greenwood Indiana 46142 317 887 0729 Fax 317 881 1277 Service Department Fax 317 885 8683 MAKING WATER WORK www AdvantageEngineering com Temperature Control Units Sentra with HE Series Instrument slots in the motor housing or by removing the shaft cover d Toggle the Start and Stop push buttons This will cycle the electrical motor on and then off e Observe the motor shaft as it slows to a stop to identify the rotation Correct rotation is clockwise when viewed from the rear of the motor Incorrect rotation is counter clockwise when viewed from the rear of the motor If the shaft does not rotate when the Start switch is pressed the operator must identify the cause as outlined in this manual s troubleshooting and repair section f If the unit is phased correctly continue with the start up procedure at step C If the unit is phased incorrect continue with step 3 PROCESS FLOW ADJUSTMENTS 1 The operator must determine and set proper water flow rate for the most efficien
83. rm Low flow alarm setpoint 20 40 Status Process 15 14 13 12 11 10 9876543210 PROCESSING ALARM SYSTEM ALARM PROCESS ALARM MACHINE ALARM HIGH TEMPERATURE ALARM LOW TEMPERATURE ALARM LOW FLOW ADVANTAGE ENGINEERING INC Page 89 525 East Stop 18 Road Greenwood Indiana 46142 317 887 0729 Fax 317 881 1277 Service Department Fax 317 885 8683 www AdvantageEngineering com e Temperature Control Units Sentra with Series Instrument SENTRA SK Temperature CONTROLLER SPI COMMANDS POLL SELECT C1C2 C1C2 COMMAND DESCRIPTION 20 42 Status Machine 1 15 14 13 12 11 109 8 7 6 5 4 3 21110 PROCESSING ALARM SYSTEM ALARM PROCESS ALARM MACHINE ALARM HIGH TEMPERATURE ALARM LOW LOW PRESS ALARM HIGH CURRENT ALARM PHASE POLL SELECT C1C2 C1C2 COMMAND DESCRIPTION 20 44 Status Machine 2 15 14 13 12 11 109 8 7 6 5 3 21110 PROCESSING L ALARM SYSTEM ALARM PROCESS ALARM MACHINE ALARM SENSOR POLL SELECT C1C2 C1C2 COMMAND DESCRIPTION 2048 2049 Machine 15 14 13 12 11 109 817 6 51413 21110 ALARM ACKNOWLEDGE ALAR
84. rvice Department Fax 317 885 8683 www AdvantageEngineering com Temperature Control Units Sentra with HE Series Instrument 1 Lo Low temperature deviation limit 2 LLL Limit 0 to 30 1 LoF Low flow limit 2 Limit O to 999 1 Pro Protocol 2 SPP for SPI 2 for CAMAC 1 Protocol Address 2 1 thru 99 for SPI 2 O thru 99 for CAMAC 1 Protocol Baudrate 2 96 where 96 9600 48 4800 24 2400 12 2400 1 Unt Temperature Flow Units 2 FP Fahrenheit GPM 2 C JCentigrade LPM 1 Ho Heat Only based on SW 5 2 Notenable 2 YES Enabled 1 ULU Valve size based on SW 3 2 50 small AVT valve 100 large valve D Extended Configuration Enabled by SW 2 1 Alternate Flow sensor 2 Internal small flow sensor 2 YES Alternate large flow sensor 1 nt No internal small flow sensor selected 2 SSS Calibration factor for small flow sensor 1 Yes alternate large flow sensor selected 2 LLL Calibration factor for large flow sensor 1 SP2 2nd setpoint enable disable 2 Disable 2nd setpoint 3 YES Enable 2nd setpoint 1 SP Remote Setpoint enable disable 2 Disable remote setpoint 2 YES Enable remote setpoint MAKING WATER WORK ADVANTAGE ENGINEERING INC Page 87 525 East
85. s temperature control B Please note that the ability of the equipment to achieve this objective is significantly affected by the method of installation C If the operator has any questions contact the Sales or Service Department at 317 887 0729 Instrument Not visible in this photograph Pressure Gauges Thermoformed Cover Panel Heater AVT Cooling Valve Electrical Panel Inside stainless steel cabinet Flow Meter Inside cooling cylinder Pump Motor Pump Vented Stainless Steel Cabinet t Caster DVANTAGE MAKING WATER WORK ADVANTAGE ENGINEERING INC Page 11 525 East Stop 18 Road Greenwood Indiana 46142 317 887 0729 Fax 317 881 1277 Service Department Fax 317 885 8683 www AdvantageEngineering com Temperature Control Units Sentra with HE Series Instrument anual amp Quick Start Guide Electrical Panel Lift Off Cover Panel ADVANTAGE ENGINEERING INC Page 12 525 East Stop 18 Road Greenwood Indiana 46142 317 887 0729 Fax 317 881 1277 Service Department Fax 317 885 8683 www AdvantageEngineering com MAKING WATER WORK Temperature Control Units Sentra with HE Series Instrument 2 0 INSTALLATION 2 1 GENERAL 2 2 TO AND FROM PROCESS CONNECTIONS 2 3 WATER SUPPLY CONNECTION 2 4 DRAIN CONNECTION 2 5 ELECTRICAL CONNECTION ADVANTAGE ENGINEERING INC Page 13 525 East Stop 18 Road Greenwood Indiana 46142 3
86. sary the instrument to restore the preferred operating parameters ADVANTAGE ENGINEERING INC Page 61 525 East Stop 18 Road Greenwood Indiana 46142 317 887 0729 Fax 317 881 1277 Service Department Fax 317 885 8683 www AdvantageEngineering com e DVANTAGE MAKING WATER WORK Temperature Control Units Sentra with Series Instrument 5 9 FLOW METER SERVICE A The HE instrument uses a flow meter assembly mounted at the base of the cooling cylinder Figure 5 9A shows a cut away view of cooling cylinder with the flow meter assembly installed B The operator can determine if the flow meter requires service when the Flow display on the HE instrument reads 0 or unusually erratic readings during operations C The performance of the flow meter may be hindered due to excessive water pressure excessive water velocity and poor water quality D The operator should follow this procedure to service the flow meter components Figure 5 9A Magnetic rotor Hall Effect sensor 1 Reduce process water temperature to below 85 F Disengage process operations and verify all system pressure is relieved and the pressure gauges read 0 2 Disengage main power supply and verify the Power light on the display is off 3 Remove the lift off access panel to access the cooling cylinder figure 5 9B The cooling cylinder is mounted to the suction side of the pump F
87. st verify the Probe Valve and Phase lights are Solid Green If these lights are Flashing Red the operator must determine why and correct Process temperature control operation is started by pressing the Start push button a The instrument will display the previously selected setpoint temperature in the Set Up display window as indicated by the Temp light The selected setpoint temperature is displayed continuously unless the operator selects Flow Network or Machine setup displays After 10 seconds of inactivity in these setup areas the display will automatically revert to the Temp display b The instrument will also display the To Process temperature as read by the temperature probe which is mounted at the top of the heater discharge tank All control functions are based on this temperature The operator can select between the To Process or From Process temperature for display in the Temperature window The display reverts to the To Process temperature after 10 seconds of inactivity if the From Process temperature was displayed The display can be programmed for Fahrenheit or Celsius as indicated by the F or the lights If the indicated To Process temperature is less than 100 F the instrument will automatically open the AVT modulating cooling valve for 30 seconds to purge entrained air from the System This is effective in most process situations Air purging is indicated by a flashing Cool light Note that the Capacity
88. t ADVANTAGE ENGINEERING INC 525 East Stop 18 Road Greenwood Indiana 46142 317 887 0729 Fax 317 881 1277 Service Department Fax 317 885 8683 MAKING WATER WORK www AdvantageEngineering com Page 5 Temperature Control Units Sentra with Series Instrument SENTRA QUICK START UP GUIDE UNIT INSTALLED TO pRRECT ELECTRICAL SUPPLY UNIT ELECTRICAL SUPPLY EQUIREMENTS LISTED ON DATA du BE CERTAIN UNIT IS INSTALLED TO PROPER ELECTRICAL SUPPLY z UNIT INSTALLED TO PROCESS CORRECTLY A A PROCESS WATER ON PROCESS MANIFOLD kaf ROM PROCESS WATER OUT ON PROCESS MANIFOLD z WATER SUPPLY OPEN AND PRESSURE ADEQUATE i ATER SUPPLY PRESSURE MUST OVER 15 PSI FOR UNIT TO START z DRAIN LINE CORRECTLY INSTALLED CONNECT DRAIN LINE TO PROPER RETURN SYSTEM z ENGAGE POWER SUPPLY POWER LIGHT ON A CHECK DISCONNECT FUSE OR TRANSFORMER FUSE z TURN UNIT ON AND SELECT SETPOINT DVANTAGE MAKING WATER WORK ADVANTAGE ENGINEERING INC 525 East Stop 18 Road Greenwood Indiana 46142 317 887 0729 Fax 317 881 1277 Service Department Fax 317 885 8683 www AdvantageEngineering com Page 6 Temperature Control Units Sentra with Series Instrument SENTRA QUICK TROUBLESHOOTING GUIDE SENTRA WILL NOT START MAIN POWER SUPPL
89. t and trouble free operation a Water flow rate through the process is determined by the pressure losses in the process loop Generally higher flow rates result in turbulent flow achieving maximum temperature control and lower maintenance b If the flow rate exceeds the motor HP capacity the electric motor will draw excessive amps This is a result of the process loop s ability to flow water at a greater rate than can be provided by the pump This will eventually result in tripping the thermal motor overload relay and the unit will shut down The Pump light will be illuminated on the display 2 If a excessive flow situation is encountered and the motor overload circuit has tripped the operator must reset the overload relay This is done by removing the thermoformed cover panel and opening the electrical panel Locate the reset lever on the overload relay figure 3 2E and Motor overload relays and Figure 3 2E pushing the reset lever in reset lever until the overloads are reset evidenced by a clicking sound as they reset 4 X 4 ADVANTAGE ENGINEERING INC Page 23 525 East Stop 18 Road Greenwood Indiana 46142 317 887 0729 Fax 317 881 1277 Service Department Fax 317 885 8683 MAKING WATER WORK www AdvantageEngineering com Temperature Control Units Sentra with Series Instrument 3 The instrument displays the process flow rate in the Flow display window figure 3 2
90. ter bath The operator should place an accurate digital thermometer in the ice water bath to read the temperature of the bath The probe will be calibrated to the temperature of the ice water bath 5 Place the probe in the ice water bath 6 Start the unit ADVANTAGE ENGINEERING INC Page 53 525 East Stop 18 Road Greenwood Indiana 46142 317 887 0729 Fax 317 881 1277 Service Department Fax 317 885 8683 www AdvantageEngineering com Temperature Control Units Sentra with Series Instrument T 10 Reduce the unit s set point via the Down Arrow push button to 32 F With the unit in the operations mode the to process temperature on the display should equal the temperature of the ice water bath as indicated by the digital thermometer If not the operator must change the calibration of the probe a To access the calibration potentiometer open the electrical cabinet panel door The panel door is secured by a support strap Caution must be employed when the the electrical panel door is open since power is applied to the unit b Locate the instrument CPU The calibration pot is located on the mother board of the instrument assembly figure 5 4C Use non conductive device to adjust the potentiometer j Adjust the Calibration port Figure 5 4C potentiometer until the to process temperature on the display equals the temperature of the ice bath When the two temperatures
91. to scroll to the Pro display in the Temperature window the Network light is illuminated The value is displayed in the Setup window Use the Use the Up Arrow or Down Arrow push buttons to select the value Available values are SPI CAC SPI is the standard Society of Plastics Industry Inc protocol CAC is the CAMAC protocol used on older CMI machines 6 MACHINE illuminates when the Machine Parameters are selected Available are Fahrenheit with GPM flow display or Celsius display with LPM flow display a Use the Select key to index to the Unt display in the Temperature window the Machine light is illuminated The value is displayed in the Setup window Use the Up Arrow or Down Arrow push buttons to select the value F or C are selectable F FLOW DISPLAY figure 3 3D FLOW PUMP ON LPM Figure 3 3E 1 The Flow display shows information concerning the pump generated flow The flow measuring mechanism is installed in the cooling cylinder a PUMP ON illuminates when the pump is operating b LPM Liters per minute illuminates when the C machine parameter is selected Gallons per minute illuminates when the F machine parameter is selected ADVANTAGE ENGINEERING INC Page 32 525 East Stop 18 Road Greenwood Indiana 46142 317 887 0729 Fax 317 881 1277 Service Department Fax 317 885 8683 MAKING WATER WORK www AdvantageEngineering com Temperature Control Units Sentra with
92. ts Sentra with HE Series Instrument 5 7 PRESSURE SWITCH SERVICE A The unit is protected from low pressure operations by a pressure switch figure 5 7A This switch is mounted at the bottom of the electrical cabinet B The switch will close and consent the control circuit when sufficient water supply pressure is presented The switch is factory set to 20 psi C If insufficient water supply pressure is present the switch will open and Pressure switch Figure 5 7A prevent operations In cases where sufficient water supply pressure is present as indicated by the unit s pressure gauges and the pump is off and if the pressure switch fails to close the pressure switch may be defective To replace the pressure switch follow the steps outlined 1 Shut down unit operations according to section 3 4 in this manual Be certain proper lock out procedures are followed Also be certain system pressure is eliminated and the unit s pressure gauges read 0 pressure Drain unit by removing the pump casing drain plug A capillary runs from the cooling cylinder to the pressure switch Remove the capillary connection The brass elbow mounted on the pressure switch must be removed Remove the electrical connections to the pressure switch The pressure switch is mounted onto the electrical cabinet with two 1 2 nuts in series Remove the nuts to remove the pressure switch A new pressure switch from the fact
93. ts may necessitate replacement of the AVT valve The procedure for servicing the AVT valve is outlined in Section 5 3 of this manual 3 Drain line obstruction The operator must determine if the drain line is obstructed by the following conditions Section 2 4 outlines the parameters of correct drain line installation a Closed drain line valve An installed but partially or fully closed valve in the drain line prevents full discharge to drain and contributes to an overheating condition The operator should determine the drain line is open b High drain back pressure Pressurized plant drain lines will prevent flow to drain if the differential between the water supply pressure and the drain line pressure is inadequate The factory recommended minimum differential is 20 psi If the differential is less than the factory recommendation plant service personnel should take measures to reduce drain line pressure 4 Instrument defective The instrument is designed and manufactured exclusively by Advantage The instrument is life tested and found to be field reliable However in the case where the instrument is determined to be defective the operator must remove the assembly according to instructions outlined in section 5 8 and return the assembly to the factory The instrument is not a field serviceable component ADVANTAGE ENGINEERING INC Page 40 525 East Stop 18 Road Greenwood Indiana 46142 317 887 0729 Fax 317 881 1277 Ser
94. ture The operator can determine all entrained air is purged when no pressure spikes are evident via the unit s pressure gauges 5 Adequate water fill and pressure must be supplied to the unit for efficient and safe operation To ensure sufficient water fill an electrical panel mounted pressure switch figure 3 2A is supplied with the unit A capillary line feeds the pressure switch If the m water supply pressure is Panel mounted pressure Figure 3 2A not adequate the unit can Switch not be operated This prevents operation with inadequate water fill and pressure If the unit is operated without adequate water fill and pressure the unit may be susceptible to overheating and could result in unit damage and or serious injury to operating personnel B ELECTRIC MOTOR PHASING PUMP ROTATION 1 The HE instrument has electronic circuitry to determine if the unit is phased correctly 2 Identify the Phase indicating light on the display figure IN s 5 3 2B If the light is Flashing Red the unit is incorrectly phased To correct continue with step 3 If the light is Solid Green the unit is correctly VALVE PHASE phased 3 To correct unit phase MAKING WATER WORK Phase light Figure 3 2B a Disengage the electrical power supply to the unit at the unit s disconnect switch Follow proper lockout procedures before proceeding ADVANTAGE ENGINEERING INC Page 21 525 East Stop 18 Road Greenwood Indi
95. unit Please note that this water should not be warm or pressurized if all shut down and disconnecting procedures were followed Remaining process water can be discharged by removing the pump casing drain plug ADVANTAGE ENGINEERING INC Page 36 525 East Stop 18 Road Greenwood Indiana 46142 317 887 0729 Fax 317 881 1277 Service Department Fax 317 885 8683 www AdvantageEngineering com DVANTAGE MAKING WATER WORK Temperature Control Units Sentra with HE Series Instrument 4 0 TROUBLESHOOTING 4 1 UNIT WILL NOT START POWER LIGHT IS NOT ILLUMINATED 4 2 UNIT WILL NOT START POWER LIGHT IS ILLUMINATED 4 3 UNIT STOPS 4 4 UNIT OVERHEATS 4 5 UNIT UNDERHEATS 4 6 PRESSURE RELIEF VALVE LEAKS 4 7 COOLING VALVE FAULT ULU ADVANTAGE ENGINEERING INC 525 East Stop 18 Road Greenwood Indiana 46142 317 887 0729 Fax 317 881 1277 Service Department Fax 317 885 8683 MAKING WATER WORK www AdvantageEngineering com Page 37 Temperature Control Units Sentra with Series Instrument 4 1 UNIT WILL NOT START POWER LIGHT IS NOT ILLUMINATED A One or more fuses at the main disconnect device are open blown Determine continuity at each fuse If continuity is not determined replace the fuse Then determine cause of blown fuse Control circuit transformer fuse is open blown Determine continuity at the control circuit transformer fuse If continuity is not determined replace t
96. upply and verify the Power light on the display is off 3 Remove the thermoformed front panel and set aside The panel is attached to the stainless steel cabinet by 4 small Screws 4 Open the hinged electrical cabinet panel cover The panel is opened by removing four small screws 5 The instrument is mounted on the electrical cabinet panel cover The instrument is secured by four mounting bolts A series of electrical connections link the instrument to the mechanical components of the unit Figure 5 8B Connections Figure 5 8B 5 Remove the large molex connector 6 Remove the ground terminals 7 Remove the sensor plug ADVANTAGE ENGINEERING INC Page 60 525 East Stop 18 Road Greenwood Indiana 46142 317 887 0729 Fax 317 881 1277 Service Department Fax 317 885 8683 MAKING WATER WORK www AdvantageEngineering com Temperature Control Units Sentra with HE Series Instrument 8 Remove the four mounting nuts The instrument is now loose and can be removed To reinstall a factory issued instrument continue with step 9 9 Place the instrument into the panel mount aligning the four mounting stems Once the instrument is aligned tighten the nuts to secure the instrument 10 Connect the sensor plug 11 Connect the ground terminals 12 Connect the large molex connector 13 The operator can now start the unit as outlined in section 3 of this manual The operator must reconfigure if neces
97. ve pump curve below E WATER HAMMER COMPETITIVE SOLENOID VALVE UNITS On competitive mold temperature controllers when gauges are supplied the water hammer effect of on off solenoid valves can be seen When the solenoid valve is open both to and from process pressure gauges will fall as the system depressurizes When the valve closes there will be a momentary spike that will be seen on both pressure gauges then they will settle back to normal values This spike is called water hammer Generally centrifugal pumps use HP most efficiently in the center portion of the curve Normally motor overload occurs in this area FLOW IN GPM I In centrifugal pumps as compared to positive displacement pumps flow rate increases as pressure decreases macoori mu ADVANTAGE ENGINEERING INC Page 82 525 East Stop 18 Road Greenwood Indiana 46142 317 887 0729 Fax 317 881 1277 Service Department Fax 317 885 8683 www AdvantageEngineering com DVANTAGE MAKING WATER WORK Temperature Control Units Sentra with HE Series Instrument 8 4 OPERATION OF MOLD PURGE A Advantage supplies an optional MOLD PURGE kit for Sentra temperature control units The mold purge kit contains several solenoid valves and check valves When activated and supplied with compressed air the mold purge kit will expel process water from the mold to the central water supply or drain Advantage
98. vice Department Fax 317 885 8683 MAKING WATER WORK www AdvantageEngineering com Temperature Control Units Sentra with HE Series Instrument 4 5 UNIT UNDERHEATS A This is evidence by operations with To Process temperatures consistently below the selected setpoint temperature 1 Process water leakage When the instrument engages the heater to elevate process temperature the input of heat into the process can be offset by a defective AVT valve If the AVT valve is defective it may pass a larger than required stream to drain thus providing unwanted cooling A defective AVT valve should be repaired immediately Heater element failure A failed heater element will not input adequate heat into the process to elevate the process water temperature The operator must check the amps at the heater contactor with the contactor energized Zero amps at the contactor indicate a failed heater or burnt wire connections The operator should remove the failed heater and replace with a new heater according to the procedure outlined in section 5 2 Unit capacity too low This occurs when the process requires more heat than the unit is capable of producing The only option in such cases is to install a unit with an adequate heater KW rating for the load Instrument defective The instrument is designed and manufactured exclusively by Advantage The instrument is life tested and found to be field reliable However in the c
99. wood Indiana 46142 317 887 0729 Fax 317 881 1277 Service Department Fax 317 885 8683 MAKING WATER WORK www AdvantageEngineering com Temperature Control Units Sentra with Series Instrument 8 1 SPECIFICATIONS SENTRA SPECIFICATIONS SK 620 635 645 665 675 680 HEATER KW 6 6 6 6 6 6 PROCESS PUMP HP 12 3 4 1 12 2 3 GPM 20 35 45 62 75 80 PSI 30 30 30 30 30 30 FULL LOAD AMPERAGE 230 volt 17 0 17 8 18 6 20 2 21 8 24 6 3o 60hz2 460 volt 8 5 8 9 9 3 10 1 10 9 12 3 DIMENSIONS inches Height 27 27 27 27 27 27 Width 11 11 11 11 11 11 Depth 16 16 16 16 16 16 CONNECTIONS inches 174 1 M 1 114 5 04 1 2 1 2 12 12 12 WEIGHT pounds Shipping 195 200 205 205 210 220 SENTRA SPECIFICATIONS SK 1020 1035 1045 1065 1075 1080 1090 10100 KW 10 10 10 10 10 10 10 10 PROCESS PUMP HP 12 3 4 1 1 2 3 5 7 20 35 45 62 75 80 90 100 PSI 30 30 30 30 30 34 54 FULL LOAD AMPERAGE 230 volt 27 0 27 8 28 6 30 2 31 8 346 40 3 47 1 30 60hz 460 volt 13 5 13 9 143 151 15 9 17 3 20 2 23 5 DIMENSIONS inches Height 27 27 27 27 27 27 44 44 Width 11 11 11 11 11 11 16 16 Depth 16 16 16 16 16 16 24 24 CONNECTIONS inches 14 a 14 1 4 iis 1 1 2 S D Yo 1 1 2 1 2 1 2 12 WEIGHT pounds Shipping
100. y to the pump heater and AVT SELECT modulating cooling valve Depress and hold the Start push button to initiate a forced vent of the unit by opening the AVT modulating cooling valve to quickly cool the unit on demand or purge entrained air 2 STOP stops unit operations by disengaging electrical supply to the pump heater and AVT modulating cooling valve Depress and hold the Stop push button to initiate a forced vent of the unit by opening the AVT modulating cooling valve to quickly cool the unit on demand or purge entrained air 3 SELECT scrolls through available setup parameters Parameters appear in the Temperature window and the value will appear in the Setup window 4 UP ARROW depress and hold to increase the selected parameter If this push button is pressed momentarily the value is incremented by one unit If the push button is held down for more than one second the value will increase slowly at first and then faster after about two seconds 5 DOWN ARROW depress and hold to decrease the selected parameter If this push button is pressed momentarily the value is incremented by one unit If the ADVANTAGE ENGINEERING INC Page 29 525 East Stop 18 Road Greenwood Indiana 46142 317 887 0729 Fax 317 881 1277 Service Department Fax 317 885 8683 MAKING WATER WORK www AdvantageEngineering com Temperature Control Units Sentra with Series Instrument push button is held down for
101. y valve customer installed at the unit s location If a valve is not installed engage the water supply source at the plant s water supply central control point Once the water supply source is open the unit will fill automatically Allow a few moments for the the unit to completely fill The operator can determine the unit is properly filled when the To Process pressure gauge and the From Process pressure gauge stabilize at equal or closely similar pressure The operator must check for any water leakage in the unit s mechanical system the process and throughout the plant s water supply system If a water leak is observed the operator must disengage the water supply system relieve all pressure and repair the leak The operator must verify the leak is repaired by refilling the system as outlined in this procedure ADVANTAGE ENGINEERING INC Page 20 525 East Stop 18 Road Greenwood Indiana 46142 317 887 0729 Fax 317 881 1277 Service Department Fax 317 885 8683 MAKING WATER WORK www AdvantageEngineering com Temperature Control Units Sentra with HE Series Instrument 4 During system fill air is trapped at various places in the water system Air is purged automatically via the AVT valve during initial pump start up outlined below air must be purged before the unit is engaged for process temperature control Entrained air in the system will adversely affect the unit s ability to control process tempera

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