Thermal Care Aquatherm RQT Advanced Operation, Installation, And Maintenance Manual
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Thermal Care Aquatherm RQT Advanced Operation, Installation, And Maintenance Manual

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Summary of Contents for Thermal Care Aquatherm RQT Advanced

  • Page 2 Thermal Care makes no warranty of any kind with regard to this information, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose.

  • Page 3: Table Of Contents

    Ta b le of C onte nt s 1 - 1 I n t r o d u c t i o n Purpose of the User Guide..................1-2 How the Guide is Organized ..................1-2 Your Responsibility as a User .................. 1-2 Foreword ........................
  • Page 4 4 - 1 O p e r a t i o n The RQT Advanced Control ..................4-2 Start-up ........................4-3 Starting the RQT Advanced ..................4-4 Stopping the RQT Advanced ..................4-5 Normal Operation....................4-6 Seal Saver/Auto Cool Stop Sequence Initiation ............4-6 Using the Optional Mold Purge Option ..............
  • Page 5 6 - 1 T r o u b l e s h o o t i n g Before Beginning ....................6-2 A Few Words of Caution ..................6-3 Identifying the Cause of a Problem ................6-4 Controller Warnings ....................6-5 Controller Alarms ....................
  • Page 6 Ta b l e o f C o n t e n t s...

  • Page 7: I Ntrod Uc T I On

    S E C T I O N I ntrod uc t i on P u rpose of th e U s er G u i d e ........1 - 2 Ho w the G u i de i s O r g an i z e d ...

  • Page 8: Purpose Of The User Guide

    Pu rp ose of th e U se r Guide This User Guide describes the Thermal Care RQT Advanced and explains step-by-step how to install and operate this equipment. Before installing this product, please take a few moments to read the User Guide and review the diagrams and safety information in the instruction packet.

  • Page 9: Foreword

    F ore wo r d The RQT Advanced typically consists of a fluid pump, electric immersion heater, and temperature control valve in a compact packaged cabinet for easy location in industrial applications where fluid temperature control is required. This manual is to serve as a guide for installing, operating, and maintaining the equip- ment.
  • Page 10 ATT ENT ION : Re ad This So N o One Gets Hurt We design equipment with the user’s safety in mind. You can avoid the potential hazards identified on this machine by following the procedures outlined below and elsewhere in the User Guide.

  • Page 11: Zero Energy State (Zes)

    Z ero E n e r g y S t at e ( ZE S ) CAUTION: Before performing maintenance or repairs on this product, you should disconnect and lockout electrical power sources to prevent injury from unexpect- ed energizing or start-up. During maintenance, it is essential that the system be put into a state which eliminates the possibility of components making an unexpected and dangerous movement.

  • Page 12: How To Use The Lockout Device (If Equipped)

    Lockout is the preferred method of isolating machines or equipment from energy sources. Your Thermal Care product may be equipped with the lockout device pictured below. To use the lockout device: Stop or turn off the equipment.

  • Page 13: Des Crip T Io N

    S E C T I O N Des crip t io n Wh a t i s t he RQ T A d v an ce d ........2 - 2 Ty pi cal A ppl i ca ti o n s .

  • Page 14: What Is The Rqt Advanced

    Wha t i s the RQT Adva nce d The RQT Advanced circulates water at a temperature higher than the available water sup- ply. It will add or remove heat as needed to maintain a uniform temperature setpoint in the process.
  • Page 15 Ty pic al Ap p l i c a t i on s ( C ont inu ed) The limiting factor regarding the maximum cooling pressure is the presumed 150 PSI Rat- ing of industry-standard hose. The hose must be able to withstand the maximum possible process temperature at maximum possible pressure.

  • Page 16: How The Rqt Advanced Direct Injection Works

    Ho w the RQT Adva nce d D ir ec t Injec ti o n Wo rks Direct Injection models maintain the process temperature by electrically heating and/ or injecting cool water supplied to the RQT Advanced by a chiller, tower, or other water source.
  • Page 17 Ho w the C lo sed C i r cu i t C om m o n So ur c e Works Closed Circuit RQT Advanced models maintain the process temperature by electrically heating and indirectly cooling fluid in the process circuit. Cooling water supplied by a chiller, tower or other water source, is mixed with the process fluid only during the initial filling or when water is needed to make up process fluid loss.
  • Page 18 RQT Adva nc e d Co ntr o l Fe a tu res vs RQT Prem ium & Standard Control, RQT Advanced TW-E Thermolator Overlay Easy Access Second surface printed 10 mil Bayfol UV-1 Easy access to User Parameters 3M 468 adhesive backing on white carrier cns 01/27/21 modified for TW-E &...
  • Page 19 S p e c i fica tio n s : RQT Ad va n c e d Specifications Models RQT Advanced (direct injection) RQT Advanced(optional closed circuit) ‡ § Performance characteristics 40 {4} (with 100% water process fluid), optional lower temperatures Minimum setpoint temperature °F {°C} with various glycol mixtures are available - consult factory.
  • Page 20 Page intentionally left blank. D e s cr i p t i o n...

  • Page 21: I Nst A Llati On

    S E C T I O N I nst a llati on Un packi ng t he B ox e s ..........3 - 2 P re pari ng f or I n st a l l at i o n .

  • Page 22: Unpacking The Boxes

    Un packi ng the Bo xes RQT Advanced models come fully assembled. If it was specified at the time of the order, the optional purge valve is factory-installed. CA U T IO N : Lif t ing To avoid personal injury or damage to the RQT Advanced, lift the unit using a fork- lift or hoist with straps that have been positioned at the center of gravity.
  • Page 23 P rep arin g f o r In s t a l l a t i on The RQT Advanced is easy to install, if you plan the location and prepare the area properly. WA R NING : Im pr o pe r in s t a lla t ion , op er at i on, or s e r v i c - in g may re s u lt i n e qu i pm ent d am a ge o r pe r s ona l in j u r y.

  • Page 24: Preparing For Installation

    Pr epar i ng for I nsta l la tio n ( Conti nue d) U A source of water for cooling. City, tower or chiller water may be used, as long Pump HP Max Cooling (PSI) as the supply pressure is at least 30 PSI*. Refer to max cooling water pressure chart shown to the left.
  • Page 25 Prep ar in g f or I n s t a l l a t i on ( C ont i nue d) To avoid the unwanted side effects associated with water cooling, proper chemical treat- ment and preventive maintenance is required for continuous plant productivity. Unwanted Side Effects of Improper Water Quality Corrosion •...

  • Page 26: Fluid Distribution Piping

    RQT Advanced connections. Smaller line sizes are not recommended. Contact Thermal Care for more information about recommendations for your product. Fl uid Distrib u tio n Pip ing Proper insulation of any cooling fluid system where the supply cooling fluid temperature is below the dew point is crucial to prevent condensation.

  • Page 27: Installation - Electrical

    I n sta llatio n - E l e c t ri ca l As you prepare to power-up your RQT Advanced, there are a few steps you should take to ensure it will be compatible with you facility’s electrical power. U All wiring must comply with local codes and the National Electric Code (NEC).

  • Page 28: Connecting Process And Water Supply Lines Without Purge

    Install pipe to the rear of the RQT Advanced. Use male 1 -inch NPT piping for NOTE: Thermal Care recommends process connections and male 1-inch NPT piping for water connections. Pipe and using a second wrench, some- pipe threads must be clean and new. Clean threads with solvent, removing all oil, times referred to as a “back-up...

  • Page 29: Connections

    Con ne cti on s A mold purge valve is available as an option. This valve quickly evacuates fluid from the process circuit, allowing faster disconnection of the temperature controller from molds and TIP: Thermal Care recom- hoses. mends ordering the purge...

  • Page 30: Connecting The Main Power Source

    Co nnec ti ng th e M a in Pow er S ou rc e Before beginning, note the electrical specifications on the serial tag mounted to the side of Tools Required the unit. The electrical connection must match these specifications with +/- 10% (+/- 15% U Flashlight for 400 V/50 Hz) maximum voltage variance and <2% imbalance.

  • Page 31: Testing The Installation

    Tes ting th e I nst a l l a ti o n WA R NIN G : O n ly qu a l i f i ed pe r s o nn e l s h oul d pe r f or m t hi s p roc e dure .

  • Page 32: Initial Setup

    Ini tial Setup U Operating Mode U Temperature Units U Setpoint U Alarm Points CA U T ION : The RQT Advanced will not operate correctly if certain factory-set parameters are changed. Parameters should only be changed by qualified techni- cal personnel who are familiar with the operation of this type of equipment.
  • Page 33 I niti al Se tup (Co nti nue d) Tem p erat u re U ni t s To select the desired temperature units for your system (°F vs. °C), follow this procedure: Access the settings window by tapping on the warning symbol corresponding to the wrench icon.

  • Page 34: Setpoint

    Se tp oin t To select the proper setpoint of the system, follow this procedure: The temperature setpoint can be quickly adjusted by tapping on the Up and Down arrows on the right of the screen when on the main page. NOTE: From the factory the TCU will control the “To Process”...

  • Page 35: S Et Ti Ng U P Yo Ur C O Nt R Ol L E

    Set ting U p You r C on t rol l e r A larm Poi nt s To select the desired alarm points for your system (low alarm and high alarm), follow this procedure: Stop the RQT Advanced by going to the Home screen and pressing the button corresponding to the OFF icon.
  • Page 36 Sett ing Up You r Con troll e r (Co nt inue d) Additionally, users may set how the unit will react when temperature or flow deviates above or below the set values, whether by triggering an alarm or a warning. Also note that diagnostics, load defaults, and factory menu are located on screen 8.
  • Page 37 Set ting U p You r C on t rol l e r (Continued) U s e r Parame t e rs Tapping on the button corresponding to the wrench icon will open the User Parameters window screen. This is the start of the parameters screen where the user set- tings and alarms can be customized.

  • Page 38: Setting Up Your Controller

    Sett ing Up Your Co ntro lle r ( Cont inue d) U s er Para met e r s Wi nd o w S cr ee n 4 Process Value can be defined here as well as the default display temperature.
  • Page 39 S e ttin g U p Your C o nt rol l e r (Co ntinued) U se r Param e t e rs Wi nd o w S cr e e n 8 Warning/Alarm Settings on how the unit will react if set values deviate.
  • Page 40 Sett i ng Up Your Co ntro lle r (Co nt inue d) NOTE: These screens are for diagnostic/display purposes only. They can be helpful to monitor RQT Advanced performance and for troubleshooting any issues. D iagnos t i cs The Diagnostics Menu screen can be accessed in the User Parameters window screen 8 or by using the corresponding button next to DGS when the unit is...
  • Page 41 S e ttin g U p Your C o nt rol l e r (Co ntinued) Diag n os t ic s S cre e n 2 Checks for the following hardware inputs: From Process Pressure (always displayed in psi) Pump Overload Pump Contactor Auxilliary Hi Temp...
  • Page 42 Sett ing Up You r Con troll e r (Co nt inue d) Diagnos tic s S cr ee n 6 Checks for the following parameters: Runtime Hours for Pump and Cooling Valve. Number of Operations for Pump and Cooling Valve, and Mold Purge (if installed).
  • Page 43 S etti ng U p You r C on t ro l l e r (Co ntinued) Di agn o st i cs S c re e n 1 0 Checks for memory writes, loop time to execute the program and the power supply voltage. NOTE: You can set the maximum loop time to a lower number in order to trap the longest loop time while monitoring.
  • Page 44 Sett ing Up You r Con troll e r (Co nt inue d) Diagnos tic s S cr ee ns 1 6 t hr o ug h 22 A lar m Count s 3-24 I n st a l l a t i o n...
  • Page 45 Set ting U p You r C on t rol l e r (Continued) D i agn o st i cs S c re e n 2 3 PID Paramenters This display is helpful to diagnose PID operation by showing different values being used to properly regulate the temperature.
  • Page 46 Page intentionally left blank. 3-26 I n st a l l a t i o n...

  • Page 47: O Peratio N

    S E C T I O N O peratio n T he R Q T A dv a nc ed C on tr o l ........4 - 2 S ta rt-u p .

  • Page 48: The Rqt Advanced Control

    The RQT Adva nce d C o ntro l Process Temperature This shows the temperature from the process source Notification Status Bar selection. Selections such as Wrench Icon To/From/Remote Tempera- The TCU will indicate Setpoint Source ture readings are available Access to the User running/stopped status This shows the setpoint...

  • Page 49: Start-Up

    S tart-u p Every unit is factory set to deliver water in accordance with the standard operating speci- fications for that particular unit. Due to variables involved with different applications and different installations, minor adjustments may be required during the initial start-up to ensure proper operation.

  • Page 50: Starting The Rqt Advanced

    Sta rting th e RQT Adva nc ed NOTE: If minimum 30 psi Before starting the RQT Advanced, verify that the system has been installed correctly for cooling water supply pres- your application. See the Installation section of this User Guide.

  • Page 51: Stopping The Rqt Advanced

    S top pin g t he RQT Ad va n c e d WA R N ING : E l e c t r ic a l Sh o c k a nd H ot S u rfac e H az ar ds Before attempting maintenance of any kind on the RQT Advanced, you must stop the unit, disconnect and lockout the main power supply, and allow the unit to cool to less than 100°F {38°C}.

  • Page 52: Normal Operation

    Nor ma l Ope ra tio n For normal operation of the RQT Advanced, set the setpoint on the temperature controller using the the Up and Down arrow key buttons to the right of the screen. Sea l Save r/Auto C o ol Sto p S eque nce Initiati on The sequence reduces the water temperature before the unit shuts off to extend the life of the pump seal.

  • Page 53: Using The Optional Mold Purge Option

    Us i n g the O p t io na l M ol d P u rg e Opt ion Optional purge valve (Mold Purge) clears the process lines of fluid using compressed air. The valve is operated by an optional manual purge button on the control panel. IMPORTANT: Before purging the process lines, be sure that the cooling water source feed is closed.
  • Page 54 Page intentionally left blank. O p e r a t i o n...

  • Page 55: Ma Inten Anc E

    S E C T I O N Ma inten anc e Ma int enanc e o f You r R Q T Ad v a nc e d ...... 5 - 2 P re ve nti ve M a i nt en an c e S c he du le ..

  • Page 56: Maintenance Of Your Rqt Advanced

    Mai nte na n ce o f You r RQT Adva nce d Depending on which features, options, and additions you ordered with your unit, your maintenance procedures and necessities may differ from what is shown in this User Guide. Please note that all illustrations, photos, and instructions are based on a typical configura- tion of a RQT Advanced.

  • Page 57: Accessing The Rqt Advanced Enclosure

    Ac ce ss in g t h e RQT A dva nc e d Enclo su re Depending on which features, options, and additions you ordered with your unit, your RQT Advanced may appear different and operate differently from the illustrations and photos shown in this User Guide.

  • Page 58: Re Mo Ving Th E P Ump Mo To R A Nd Sea L

    Remove the motor and adapter from the pump adapter to volute. Remove the casing O-ring. Inspect for damage or wear. If in good condition, set aside for re-use. If a new part is needed, contact Thermal Care Parts. M a i n t e n a n ce...
  • Page 59 Re mo vi n g t h e P um p Mot or a n d Seal (3/4-2 HP, any frequency and 3HP, 60 Hz units) Continued Remove the dust cap from the bell end motor housing to expose the motor shaft. Using a locking pair of pliers, grip the flat sides of the motor shaft.

  • Page 60: Removing The Pump Motor And Seal (3/4-2 Hp, Any Frequency And 3Hp, 60 Hz Units)

    Re mo vin g the Pu mp M o to r a nd S ea l (3/4-2 HP, any frequency and 3HP, 60 Hz units) (Continued) Slide the rotating half of the shaft seal off of the shaft. Be careful not to contami- nate, chip, or scratch seal surfaces if it is to be re-used.
  • Page 61 Re as semb li n g t he Pu m p M ot o r an d Sea l ( 3/ 4-2 H P, an y fre que ncy and 3HP, 60 H z units) The following procedure can be used on all models with 3/4-2 HP, any frequency and 3HP, 60 Hz motors for reassembly: Tools Required U 9/16-inch wrench...

  • Page 62: Reassembling The Pump Motor And Seal (3/4-2 Hp, Any Frequency And 3Hp, 60 Hz Units)

    Re assem bli ng t he P ump Mo to r a nd S eal (3/4-2 HP, any frequency and 3HP, 60 Hz units) (Continued) Align the impeller and screw on to shaft. Place a small amount of Blue Loc-Tite #271 on the shaft end thread. Install the impeller jam nut on the shaft, and tighten to 12 ft-lbs {16.27 N·m}.

  • Page 63: Removing The Pump Motor And Seal (3 Hp, 50Hz And 5 To 10 Hp, Any Frequency Units)

    Re mo vin g t he Pu mp Mot or a nd S eal ( 3 H P, 5 0Hz a nd 5 to 10 HP, an y fre quency units) Tools Required U 9/16-inch wrench U Flat-blade screwdriver U 9/16-inch deep socket Motor Time Required Motor Bolts...
  • Page 64 Re mo vin g the Pu mp M o to r a nd S ea l ( 3 HP, 50 Hz a nd 5 t o 1 0 H P, a n y f r eque ncy uni ts) (C o nt i n ue d) This area interfaces with volute Witness line Clamp in this region if needed...

  • Page 65: Reassembling Pump Motor And Seal (3 Hp, 50Hz And 5 To 10 Hp, Any Frequency Units)

    Re as semb li n g P um p M ot or a nd Seal ( 3 H P, 5 0Hz a nd 5 to 10 HP, an y fre quency units) The following procedure can be used on all models with 3 HP, 50Hz and 5 to 10 HP, any Tools Required frequency motors for disassembly: U 9/16-inch wrench...

  • Page 66: Resetting Pump Overload

    Re setting Pump Ove rlo a d Tools Required Phillips Screwdriver The pump motor overload is located inside the unit’s electrical enclosure. Disconnect and lockout the main power. Open the electrical enclosure door. Turn the screw on the front panel counterclockwise to open. Check the overload.

  • Page 67: Replacing The Heater Contactor

    Re pl aci n g th e He a t e r C ont a c to r CAUTION: Before performing maintenance or repairs on this product, you should disconnect and lockout electrical power sources to prevent injury from unex- pected energization or start-up.

  • Page 68: Replacing The Controller Boards

    Re pla ci ng th e C o ntro lle r Bo a rds The HMI Controller on the Advanced units can be replaced if necessary. To R em o ve t h e H M I Cont r oll er : Disconnect and lockout the main power supply.

  • Page 69: Rqt Advanced Controller Abbreviations/Acronyms

    RQ T A dvan ce d C on t r o l l e r Ab br e viat ion s/ Ac r on ym s To Prc – To Process (Supply) Fr Prc – From Process (Return) MP – Mold Purge DGS –...

  • Page 70: Replacing Rtds

    Re pla ci ng RTD s WA R NI NG : H ot Sur faces Allow the RQT Advanced to cool to below 100°F {38°C} before servicing the unit. To replace an RTD: Disconnect and lockout the main power. Drain the unit of all water through the drain plug in the rear of the unit.

  • Page 71: Repairing Cooling Valves

    Re pa irin g Co ol i n g Val ve s Every RQT Advanced has a valve assembly that controls the cooling water out flow. Occasionally, this valve assembly may need to be cleaned, if clogged with debris, or replaced.

  • Page 72: Replacing Immersion Heaters

    Re pla ci ng I mm ers io n Hea t ers WA R NI NG : E le ct r ical Shock and Hot Sur fac e Hazar d Before attempting maintenance of any kind on the RQT Advanced, you must stop the unit;...
  • Page 73 =  Torque Re pl aci n g Im mer s i o n He a t e rs (C on tinu ed) Add‐On Heater Termination Studs  To Re-install add-on heater termination stud use a nut driver and use the same torque   you would use to tighten the standard stud nut. Do not overtighten!  ...
  • Page 74 Re pla ci ng I mm ers io n Hea t ers ( Co n ti n u e d ) Pa r t s Description Usage Small Add-On Heater Termination Stud For #8 & #6 wires. Medium Add-On Heater Termination Stud For #4 wires.
  • Page 75 Re pl aci n g Im mer s i o n He a t e rs (C on tinu ed) Lift the heating element out of the heater tank. Lift the element straight up. Heater Lid Immersion Heater Heater O-ring flange and O-ring Clean the heater tank.

  • Page 76: Removing The Pump

    Re mo vin g the Pu mp WA R NI NG : E le ct r ical Shock and Hot Sur fac e Hazar d Before attempting maintenance of any kind on the RQT Advanced, you must stop the unit; disconnect and lockout the main power supply; and allow the unit to cool to 100°F {38°C}.

  • Page 77: Tro Uble S H Oot I N G

    S E C T I O N Tro uble s h oot i n g Be f ore B e gi n ni n g........... 6 - 2 A F ew Wor d s of C au t i on .

  • Page 78: Before Beginning

    U Find any wiring, parts, and assembly diagrams that were shipped with your equip- Additional manuals and prints for your Thermal Care equipment may ment. These are the best reference for correcting a problem. The diagrams will note be ordered through the Customer any custom features or options not covered in this User Guide.

  • Page 79: A Few Words Of Caution

    A Fe w Wo r ds of C au t i o n WA R NING : I mp r o p er i ns t a llat io n, oper at i on o r se r vi c i ng m a y r e s ul t in equ ipm e n t da m age or p er so na l i nj u r y.

  • Page 80: Identifying The Cause Of A Problem

    Identifying the C a use of a Pro ble m The Troubleshooting section covers problems directly related to the operation and main- NOTE: Additional troubleshooting tenance of the RQT Advanced. This section does not provide solutions to problems that help can be found in the docu- originate with other equipment.

  • Page 81: Controller Warnings

    C ont ro ller Wa r ni ng s Warning Possible Cause Solution Pump Overload Pump current high. Check fluid loop for too much flow. Pump differential pressure too low. Reset pump overload protector. Heater Contactor Life Heater contactor is near to the end of life. Replace contactor soon.
  • Page 82 C on t ro ller War nin gs ( c ont inue d) Warning Possible Cause Solution High Flow Deviation Too much flow in process lines. Check for appropriate warning trigger settings. Low Flow Deviation Process lines are blocked or a valve is Check the process lines and appropriate closed.
  • Page 83 C ont ro ller A l ar m s Alarm Possible Cause Solution Over Temperature The process heater or SSR heatsink (if Disconnect power to the unit! Fault installed) is too hot. Check for low flow or failed cooling fan. Wait for unit to cooldown before at- tempting to restart.

  • Page 84: Controller Alarms

    Con tr oll er Alar ms (C on ti nue d) Alarm Possible Cause Solution Pump Overload Pump differential pressure too low. Check fluid loop for too much flow. Tripped Pump current high. Reset pump overload protector. To Process RTD Probe Possible OPEN CIRCUIT in “To Process”...

  • Page 85: Tro U Bl Eshoo T I

    C ont ro ller A l ar m s (Continued) Alarm Possible Cause Solution Analog Setpoint Error Possible CHANNEL FAULT in analog Check for CHANNEL FAULT in SETPOINT TEMPERATURE wiring or analog SETPOINT TEMPERATURE transmitter. wiring or transmitter. From Process Pressure Possible HIGH SIGNAL or OPEN/SHORT Check for HIGH SIGNAL or OPEN/ Sensor Open Circuit...

  • Page 86: Unit Will Not Power Up

    Uni t Wil l No t Pow e r Up If you press the control power button and the HMI Controller does not light, you have a problem with the main power circuit or the unit’s temperature controller. WA R NIN G : E l ect r i cal S h ock Haz ar d Di sco nn ect an d l o c kou t t he main pow e r supply be f or e pr oc eed i ng .

  • Page 87: Troubleshooting

    Trou bles h oot i ng Symptom Possible Cause Solution Alternating overheating and Poor water flow. Check connectors and increase overcooling or rapid cycling size if necessary. If there are a from heat to cool. large number of hoses and/or they are long, try to shorten hose runs and use as large of a hose as possible to minimize water-circuit...
  • Page 88 IMPORTANT: Always refer to the wiring diagrams that came with your RQT Advanced Tro u bl esho oti ng (C ontinue d) to locate specific electrical components. Illustrations in the User Guide are intended to be representative only. Symptom Possible Cause Solution Unable to cool properly.

  • Page 89: Replacing The Heater Contactor

    R e pla cin g th e He a t e r C on ta c t or See Replacing the Heater Contactor in the Maintenance Section of this User Guide. C he ck in g th e RTD WA R N ING : E le c t r i c a l S ho c k H az a r d Only qualified service personnel who have been trained on electrical testing and the procedures for avoiding the hazards should diagnose or correct problems that require opening the unit with power on.

  • Page 90: Checking The Rtd

    Checki ng th e RTD ( C on ti n u ed ) P t1000 Temp Resistance Resistance Resistance Resistance Resistance Resistance Resistance Resistance Resistance Resistance Temp at T at T+1°F at T+2°F at T+3°F at T+4°F at T+5°F at T+6°F at T+7°F at T+8°F at T+9°F...

  • Page 91: Appendix

    Ap p e n d ix A We’re Her e to He lp Thermal Care has made a large investment in customer support. Our Customer Service experts are available to help with any problem you might have installing and operating your equipment.
  • Page 92 A p p e n d i x A...

  • Page 93: Appendix

    Ap p e n d ix B PID Para me te r s The Thermal Care RQT Advanced features a PID (“proportional-integral-derivative”) control-loop algorithm implemented in the programming of the controller board. This algorithm is used to achieve the proper temperature of the process fluid quickly and ac- curately.
  • Page 94 PID Pa ram e te rs (Continued) Fa st R es po nd in g s y s t em Select the fast setting “Small” for small systems for parameter “System Size”. Less than 10 gallons {38 liters} and 700 pounds {318 kg} of steel might be considered a small system.

  • Page 95: Pid Parameters

    PID Paramete rs (Continued) I n teg ral Using only proportional control will cause the RQT Advanced to have steady-state error (it will never exactly reach setpoint). Integral response is used to eliminate this undesir- able condition. Integral logic introduces the awareness of the passage of time into the logic by looking into the past—and observing how far the process has been from the setpoint over time.
  • Page 96 PID Par ame te rs (Continued) STEPS: To Start a Test Navigate to the PID settings under the User Parameters window screen 7. Turn off all derivative control by setting the D-Gain to “0”. Minimize integral control by setting the I-Gain to “0”. Set P-Band to an initial value of approximately 10% of setpoint.
  • Page 97 PI D Par ame te rs (Continued) Continue the Test – Proportional + Integral + Derivative Cool down your system and repeat the experiment so you can truly observe the process temperature approaching setpoint. You will probably observe the tem- perature overshooting the setpoint.
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  • Page 99: Plumbing Diagrams

    Ap p e n d ix C Pl um bing D ia gr ams Direct injection In a direct injection arrangement, the cooling fluid is directly injected into the process loop whenever cooling is required. The immersion heater provides heat directly into the process fluid whenever needed.
  • Page 100 Pl um bing D ia gr ams ( C o nti nue d) Closed-circuit common-source In a closed-circuit common-source arrangement, the cooling fluid mixes with the process fluid only at initial fill- ing. After that, there is very limited interaction of process and cooling water, and the cooling function is achieved by transferring heat through a heat exchanger.
  • Page 101 Pl umbi n g Di agr ams ( C onti nue d) Direct Injection - In a direct injection arrangement, the cooling fluid is directly injected into the process loop whenever cooling is required. The immersion heater provides heat directly into the process fluid whenever needed. A ppendi x C...
  • Page 102 Pl umbin g D iag ra ms ( Conti nue d) Closed-circuit common-source - In a closed-circuit common-source arrangement, the cooling fluid mixes with the process fluid only at initial filling. After that, there is very limited interaction of process and cooling water, and the cooling function is achieved by transferring heat through a heat exchanger.

  • Page 103: Plumbing Curves

    Pl um bing Cu r ve s Direc t I njecti o n A ppendi x C...
  • Page 104 Pl umbin g Cur ve s ( C o nt i nue d) Clo s ed C ircuit S ta nd a r d P e r fo rm an c e A p p e n d i x C...

  • Page 105: External Interfaces

    Ap p e n d ix D External In te r face s Analog Re mo t e Se t p oi n t / P r oces s Temp Ret r ans mi t Co nnec ting t o t h e R Q T A dva nce d WAR NIN G : Imp r op er i n st a llat ion , oper at i on, or s er v ic - ing ma y r es ul t i n eq ui p ment d amage or per sonal injur y.
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  • Page 107: Flowmeter Installation Instruction Sheet

    Ap p e n d ix E Flowmeter installation instruction sheet PRH021-0915 Flowmeter Installation Instruction Sheet 1. Remove the plumbing connection from the unit to the process. PRH 021- 0 9 1 5 2. Add sealant to threads and attach flow meter and fittings to the unit according to the figure Remove the plumbing connection from the unit to the process.
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  • Page 109: Modbus Parameters

    Ap p e n d ix F Modbus Par ame te r s RQ T A dvance d Mo db us C o mm un i ca t i on R e g ist e r s Modbus RTU default settings: Station ID: Baudrate: 9600...
  • Page 110 Modbus Par ame te rs (Continu ed) R Q T Advance d Mo db u s C om mu n i ca t io n R e g ist er s Type Index Size Variable Data Security Comments Name Type fault Value InputRegister...
  • Page 111 Modbus Par ame te rs (Continu ed) R Q T Advance d Mo db u s C om mu n i ca t io n R e g ist er s Type Index Size Variable Data Security Comments Name Type fault Value DiscreteInput...
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  • Page 113  Niles, IL 60714   New Equipment Sales Customer Service  Parts Department 5680 W. Jarvis Ave.  •      847‐966‐2636   847‐966‐9358(fax)  847‐966‐2260  847‐966‐2260  847‐966‐8560  •      tcservice@thermalcare.com     www.thermalcare.com  sales@thermalcare.com  tcparts@thermalcare.com  February 2023     RQT Advanced TCUGH002‐022-Rev6 ...

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