User`s Manual Part Number: 161-123417-023 Sales
Contents
1. PAGE Diagnostic Indicators Temperature Controller System shuts down if any diagnostic Top Display reads current system outlet indicator is illuminated temperature Low Water Pressure Bottom Display reads setpoint System water pressure is temperature below 20 pol Disabled Press N to increase setpoint CMX 180 models temperature Pump Overload Press M to decrease setpoint Pump has drawn too much temperature current OUT 1 yx Over Temperature Heatis being applied System temperature has exceeded 260 F x OUT 2 Cooling is being applied OUT 3 Y f OUT 4 Indicates overtemp condition Press 45531 to continue operation after overtemp AUX Indicates system is in Standby microTHERM User Instructions 13 Temperature Controller Operation Figure 3 2 Controller Displays and Pushbuttons 35 OUT1 Indicates Heat OUT 2 Indicates Cool ON LEDs indicate Overtemperature RESET Pushbutton Resets Overtemperature Alarm 14 The Chromalox 2104 1 4 DIN temperature controller is a high performance single loop controller used in the CMX system The 2104 controller has two control outputs for heating and cooling that can be configured separately and provide flexible temperature control for the CMX Additional outputs give the 2104 the ability to provide an over temperature alarm A dual digital display of current process temperature and setpoint te2. alox microTHERM PRECISION HEAT AND CONTROL micro gt Circulating Water Temperature Controller System Model Number and Rating Part Number Serial Number Customer Customer Order Number Date User s Manual Issue Date Part Number 161 123417 023 January 2012 Sales PQ445 5 microTHERM User Instructions Table of Contents Section Topic Page 1 ESTEE 1 2 3 3 Temperature Control 13 4 ea NU e 19 5 Diagnostics as cn cen 21 6 23 7 sudiste 31 8 eat OBS ue eto ad palm 33 9 Warranty and Limitation of Remedy and Liability 31 10 39 Appendix A CMX 180 Model for Low Pressure Applications 42 Appendix B Closed Loop to Open Loop Cooling Conversion 43 Appendix C Open Loop to Closed Loop Cooling Conversion 44 microTHERM User Instructions Illustrations Figure Topic Page 1 1 SYSE PHOTO os 2 14 Control P tiel iiie 3 2 1 Syst m PIPINE ennem
3. 3 Press to start the pump 2 Adjust the temperature setpoint to desired level microTHERM User Instructions 19 5 Assure that Pump Rotation Check was performed per instructions on page 12 6 Start the pump by pressing on the front panel The pump indicator light will illuminate 7 Once temperature has stabilized at the setpoint level review controllability of the system If the temperature displayed in the top display of the temperature controller is fluctuating at an unacceptable level consult the temperature control instruction manual for details on tuning the controller Heat and cooling action is indicated via the L E D s on the left side of the controller OUT 1 for heat OUT 2 for cooling 8 If the system temperature is below the current setpoint heat will be applied by the controller to the heater elements If the temperature is above the setpoint the cooling solenoid will open open and closed loop to reduce the system temperature Operating systems at temperatures above 140 F will create surface temperatures on pipes that can cause burns Precautions should be taken to prevent operator contact with hot pipes Also bleed valves should be locked down to prevent release of hot fluid amp Note This is a PID type controller and cycling of the heat and cool can be expected below and above setpoint 9 For system shutdown lower the setpoint to 90 F or lower see pages 15 17 Allow
4. Correction Unit will not start control display does not light 1 Unit not wired correctly 2 Disconnect switch OFF 3 Blown fuse 4 Wrong voltage 1 Check wiring 2 Turn disconnect ON 3 Check disconnect fuses and 120V fuse on terminal block blown fuse indicator will light if fuse is blown 4 Check supply voltage and unit s rated voltage Control display lights unit will not start 1 Cooling water off or below 20 psi CMX 250 models only 2 Pump motor overload 3 System above temperature limit of 260 F 190 F on CMX 180 models 1 Open cooling water valve check to assure pressure is above 30 psi 2 Determine problem and press pump reset 3 Allow unit to cool below 260 F and press 1334 Unit stops while running 1 Cooling water drops below 20 psi 2 Pump motor overload 3 System exceeds temperature limit of 260 F 190 F on CMX 180 models 1 Check cooling water valve check to assure above 30 psi 2 Determine problem press pump reset and restart 3 Allow unit to cool below 260 F press Hay and restart Low Water Pressure Indicator illuminated 1 Cooling water below 20 psi CMX 250 models only 1 Check that pressure is above 30 psi microTHERM User Instructions continued gt 31 Troubleshooting Guide For qualified personnel only Symptom Probable Cause Correction Pump Overload Indicator il
5. NPT bush reducer 38 from the bottom port on the inlet chamber Fig 4 Install 1 NPT pipe plug 37 in bottom port of the inlet chamber Fig 3 Remove the following labels from the CMX back panel e Water Supply Cooling Inlet from bottom port on inlet chamber Drain Cooling Outlet from bottom heat exchanger opening Fig 4 Apply new labels 50 to CMX back panel Cooling Outlet to top heat exchanger opening e Water Supply Cooling Inlet to bottom heat exchanger opening Test all connections for leaks microTHERM User Instructions
6. decrement through the PAGEs and PAGE will be displayed in the lower display After reaching the CTRL PAGE press RESET to move through the MENUs The alpha cue for the MENU will appear on the upper display and the current value will appear in the lower display SP 250 RESET AUX 7 Hold Press A or V microTHERM User Instructions 15 Security Code To change a MENU value After the MENU is selected and displayed use the pushbuttons to change the value For large adjustments for example 100 to 200 hold the pushbutton pressed and the display will change more quickly SP SP 1005 gt NBN RESET AUX M b RESET AUX A M To return to Operating Mode Press and hold for more than 3 seconds The controller will automatically return to operating mode after 10 minutes of no pushbutton activity Hold for at least 3 seconds Every parameter or selection in the 2104 controller s setup PAGES has an identifying MENU The MENU are accessible only if the correct Security Code is entered This allows you to set the Security level that is apprpriate for your operating environment prohibiting unauthorized access to or accidential changing of control parameters The microTHERM system is factory preset to security code 123 To adjust any of the controller s setup parameters the security code must be set to 458 The Security Code is entered on the Control P
7. 240 or 480 volts 3 phase 60 cycle and 4 5 to 24 kW See the system nameplate for the appropriate voltage and wattage ratings The System Photo and Control Panel Illustrations on the following pages show the CMX and identifies all key components microTHERM User Instructions 1 Figure 1 1 System Photo Operating temperatures of ASME pressure relief valve Incoloy sheath Chromalox 50 to 250 F for a wide opens if system pressure heating elements variety of applications exceeds 125 psi ensuring safe operation Integral solenoid valve for precise temperature control and optimum flow Automatic air purge cycle removes accumulated air from water lines Standard 3 8 sq ft heat exchanger closed loop cooling Cabinet design allows access to all components without removing a single fastener Compact rugged cabinet fits into tight spaces Rolling casters allow easy transfer Low pressure switch disables Custom cast pump for between locations system when supply pressure is optimum flow minimum low preventing cavitation in pump leakage and long life and protecting the system Not provided on CMX 180 models 2 microTHERM User Instructions Figure 1 2 Control Panel Dual pressure gauges for monitoring of both to process and from process pressures Series Temperature Control System Pump Diagnostic Indicators Chromalox s 2104 Temperature START STOP and Process Controlle
8. Reconnect the system 13 Perform Pump Rotation Check see Section 2 page 12 14 Replace top panel Figure 6 3 Motor Vent Line WARNING Close the front electrical enclosure door and retighten the locking screw This must be done to limit access to high voltage components Failure to comply could lead to electric shock or electrocution Heater Element Housing Pump Housing Pump Motor Vent Line 26 microTHERM User Instructions Heat Exchanger 1 Disconnect all power to the system Removal Replacement Closed loop system Bleed pressure and drain all water from the system 3 Remove top panel 4 Remove cover on the cooling solenoid see Figure 6 4 Heat Exchanger 5 Disconnect COOLING INLET and COOLING OUTLET piping 6 Disconnect copper tubing connected to the heat exchanger 7 Unbolt the heat exchanger and remove 4 bolts 8 Place new heat exchanger in system and bolt down 9 Reconnect COOLING INLET and COOLING OUTLET piping 10 Reconnect wires to the cooling solenoid 11 Reconnect copper tubing 12 Replace cover on cooling solenoid and top panel 13 Replace system water and reconnect the system WARNING Close the front electrical enclosure door and retighten the locking screw This must be done to limit access to high voltage components Failure to comply could lead to electric shock or electrocution Figure 6 4
9. Schematic 1 L1 111 Customer Heater Supplied o2 112 9 KW 480 VAC 10 8 AMP L3 113 1M 1 OL e o OH o 2F 2 2T1 o X o GND 3T1 2121 2 2 Pump 3 4 GND 5 Motor 1 7 FLA 2L3 2T3 X o 9 SN 80 VA CY Y Y NY NY 480 120 VAC 9 See Transformer Wire Diagram 2 1F 9 1 por 27 2 Customer 1PB 2 9 Pump 10TC 1 1 Connection Start xi AMA Thermal Stop Remote Stop 6 OL 5 6 Le o 7 1M 6 14 Motor Control 13 xnl 1 1 At 89 1M 1 4 Customer 14 mole Stan Output 4 erm 7 7 5 13 See Note 2 1M 2 1 TC 8 9 fe Heater 53 1 54 Control Snubber 7 8 is Cooling Solenoid See Note 1 Snubber 9 bs 2104 TT110 10 11 Output 3 Heater Overtemp 11 OL 1 12 ol 12 Les 4 Pump 98 97 gt Overload 42 microTHERM User Instructions Appendix B microTHERM CMX Closed Loop to Open Loop Cooling Conversion Note All warnings and cautions denoted throughout this user s manual also apply to the modifications listed below Gen eral instructions and specifications referring to the open and closed loop systems appl
10. above issues please contact Chromalox Product Service at 866 736 6686 from 9 A M to 5 P M EST 32 microTHERM User Instructions Section 8 Specifications Standard 3 4 HP Pump Pump Nominal Heating Standard Process Drain supply Approximate Size Flow Capacity Voltages Connections Dimensions gpm kW inches dia inches dia inches 4 5 240 or 480 9 240 or 480 29 height 3 4 30 12 240 or 480 1 1 4 NPT 1 4 NPT 25 depth 18 240 or 480 15 width 24 240 or 480 Optional Pump Sizes Optional Nominal Pump Sizes Flow HP gpm 1 5 40 3 50 5 60 75 80 microTHERM User Instructions 33 Other Options e Alternate Voltages 208 380 575 VAC 3 phase Expanded Open Loop Cooling increased cooling water flow Expanded Closed Loop Cooling 6 3 sq ft heat exchanger Solid State Power Control SCR heater switching Surge Reduction valve reduces water pressure spikes Door Interlock prevents operation with service door open Digital Communications for interface with ChromaSoft or remote PC PLC systems Style Contactor for dry contact power switching Isolation Valve Kit 1 ball valve for system isolation figure 8 1 Pump Capacity Five pump sizes available for the flow rate appropriate to your process application 7 5 HP 5 3 1 5 HP 3 4 HP 0 40 60 80 00 0 Pump Capacity 34 microTHERM User Instructions ALVOI
11. cover off of the heat transfer system and locate the top of the pump motor 6 With the supply water connected and adequate pressure present press the and buttons in quick succession Watch the rotation on the pump motor to insure it matches the label on its top 7 lfrotation is incorrect disconnect power to the system and swap any two of the supply lines Repeat rotation check WARNING Close the front electrical enclosure door and retighten the locking screw This must be done to limit access to high voltage components Failure to comply could lead to electric shock or electrocution Control Voltage Fusing Terminal block 1 see Figure 2 5 contains a 120V fuse for the control circuitry this fuse protects the control transformer and circuitry 1 Should the fuse blow an indicator will light on the terminal block 2 Disconnect power from the system 3 Determine the cause of the blown fuse 4 Replace with an equivalent fuse 5 Reconnect power microTHERM User Instructions Section 3 Temperature Control Operations Figure 3 1 Control Panel Layout 2 START STOP Pushbuttons Press to start the pump Indicator will illuminate while pump is running Press to stop the pump gt Control Panel gt Temperature Controller Operation Inlet Pressure Outlet Pressure 2 To Process CMX Series Temperature Control System
12. is disconnected solve the electrical current problem To put the pump back on line open the front electrical enclosure and press the pump reset switch See Figure 5 2 Overload Switch Figure 5 2 Pump Reset Switch TIM COOOL 1212 Pump Reset Switch A WARNING Close the front electrical enclosure door and retighten the locking screw This must be done to limit access to high voltage components Failure to comply could lead to electric shock or electrocution If the system temperature exceeds 260 F 127 C the Over Over Temperature Temperature Indicator will illuminate When the system Indicator temperature drops below 260 F pres 3 on the controller face The controller will not reset until the temperature is below 260 F 190 F on CMX 180 model s 22 microTHERM User Instructions Section 6 Maintenance Section Contents Shut Down Shut Down Heater Removal Replacement Pump Removal Replacement Heat Exchanger Removal Replacement closed loop systems WARNING Disconnect all power before servicing or performing maintenance to the system Do not attempt to service system while it is operating Failure to comply can result in a Electrical shock or electrocution b Burns from hot heating elements piping and hot water c Injury from operating or rotating pump and motor Maintenance is to be performed by qualified personnel only Thoroughly read and understa
13. not connect any valves or obstructions which could prevent free discharge from relief valve in a safe manner Route line so water drains completly Do not allow drain to freeze or corrode shut microTHERM User Instructions Hydraulic Installation Open Loop Figure 2 1 Open Loop System Piping Locate the unit as close as possible to the controlled process in order to minimize pressure drops Make sure the unit is sitting on a solid level foundation Using 1 1447 NPT or larger schedule 40 pipe flexible hose suitable for 150 psi and 250 F minimum service conditions can be used connect the 1 NPT FROM PROCESS and TO PROCESS ports to the mold mold manifold or other process Pipe the entire system to minimize air pockets Provide air bleed valves at high points and drains at low points Connect the plant water supply 30 psi to 80 psi to the unit s 1 2 NPT WATER SUPPLY COOLING INLET port with suitable pipe or hose Hazard of Explosion Fire and Scalding Burns Connect the NPT port identified as DRAIN COOLING OUTLET to an open or plant drain that contains no valves or obstructions that could impede discharge Review the condition of potential hot water or steam going down a plant drain Verify that local codes and materials are acceptable for this service Locate floor drain under unit The air bleed and relief valve may discharge hot water or steam from the bottom of the u
14. number 299 122818 001 2 1 2 NPT Tee 1 piece Chromalox part number 299 122818 003 3 1 4 NPT x 7 8 Nipple 1 piece Chromalox part number 198 122817 002 4 1 2 NPT x 3 Nipple 1 piece Chromalox part number 198 122817 090 5 1 2 NPT Street Elbow 1 piece Chromalox part number 107 114567 005 6 Bush Reducer 1 2 x 1 4 NPT 2 pieces Chromalox part number 032 121003 005 7 Compression Fitting 2 pieces Chromalox part number 119 114570 001 1 4 NPT x 3 8 tube 8 Tubing 3 8 copper 2 Feet Chromalox part number 318 511965 001 9 Gasket 1 piece Chromalox part number 132 146012 020 10 Heat Exchanger Tube Bundle 1 piece Chromalox part number 353 123367 002 11 1 NPT Pipe Plug 1 piece Chromalox part number 218 075439 066 12 Labels 1 piece Chromalox part number 170 122103 040 Replacement Steps Figures 1 2 3 and 4 show the layout of the cooling configuration for both closed and open loop cooling These parts are located on the top of the cooling chamber and the pump inlet Use pipe tape or other sealing compound when attaching threaded connections Figure 1 Closed Loop Cooling Figure 2 Open Loop Cooling Note Refer to Figures 3 and 4 for location of components 44 microTHERM User Instructions oran COOLING OUTLET 4 0 FROM TO PROCESS PROCESS OPEN LOOP OPEN LOOP Figure 3 Open Loop Coolin
15. 00 123617 001 292 122882 043 213 122066 034 213 122066 041 072 123534 064 071 122886 055 Motor Thermal Overload 240V 359 122078 096 Motor Thermal Overload 480 359 122078 095 Transformer 240 480 315 303786 001 cR Caster 4 total nics 375 123425 003 Control Voltage FUSE us ssssserrsrsesrsrssrsaseressisnsnrens 128 123445 005 6 M Heater Contactor 7 See table above These parts may vary for non catalog items Please consult your local Chromalox representative 800 443 2640 or www chromalox com microTHERM User Instructions 29 Figure 6 6 Replacement Parts Identification CB Sarles Temperature Control System Low Water Pressure Pump Overload Chromalox CONNECT 2 VOLT FUSE AUX CONTACT BLOCK MOTOR CONTACTOR OVERLOAD Lo HEATER TRANSFORMER CONTACTOR 30 microTHERM User Instructions Section 7 Troubleshooting Troubleshooting Guide For qualified personnel only Symptom Probable Cause
16. 001 889 SONILI3S 8019 4 14510 11118 1145 3492 9 5035 Ad 0453 ny 454 1881 quay 4 agny 4881 pun 14 1530 2384 24H 29d 2H Ad jun 45 H207 129 14510 Hddn 1 04135 58519084 LIANT 3 01 1 104155 5532094 188440 1 9 SLINA AV ldSIQ 0193155 LAdNI YOSNAS 9 1009 5 8350 LNAWNOISSY LAdLNO 901VNV NOLLONP LNdNI LN3A3 1 104155 3101 38 WNIGSW 003 8311081 09 NOLLVHO3INISIO 4001 114110 YOSNAS 340 21801 AZZNA 18538 QNv8 13539 QNV8 1VNOILHOdOHd 3199 1 13538 1 1 0 4084 4135 1 04 135 1 04 135 3003 39vd 40135 1081 09 35 THERM User Instructions micro Notes 36 microTHERM User Instructions Section 9 CMX Warranty and Limitation of Remedy and Liability Warranty Chromalox warrants only that the Products and parts manufactured by Chromalox when shipped and the work performed by Chromalox when performed will meet all applicable specification and other specific product and work requirements including those of performance
17. AGE CTRL at the MENU LOCH This code determines which MENUs may be adjusted microTHERM User Instructions To access and enter the Security Code 1 Press and hold for more than 3 seconds to enter Setup Mode Security Lock is the first menu that will appear LOCH 2 change the Security Code press N Or until the correct security code is displayed 458 to change controller setup 3 Reference the factory preset MENU settings Figure 8 2 page 35 when replacing the controller or if the settings have been changed Control Page Menu Description Available Settings Factory Settings Security LOCH Security Lock 0 to 9999 123 A SP Setpoint Instrument sensor span 32 F B Alarm Relay Action Output relays 3 and 4 are set as over temperature latching alarms If the microTHERM system encounters an over temperature condition in excess of 260 F or 190 F on CMX 180 models both alarms will trip disabling the system Output 3 provides operator indication of an overtemp condition and Output 4 disables the system Do not change any of the settings for either output 3 or 4 The system will not reset until the process temperature drops below the alarm value The pushbutton must be pressed and the temperature must be below 260 F or 190 F on CMX 180 models in order to restart microTHERM User Instructions 17 Notes 18 microTHERM User Instructions Section 4 Syst
18. GNI SI 39NVH2 ON 41 N3A3 SAN TWA 031511 TV N338 3AVH 539 83H10 8 3009 5 JONVHO 1 SONILI3S AHOLOV 410 d l 4 092 3 001 3 001 Tu pu quou TV 440 410 31 1 090 1 0010 3 001 pu quou TV 310 10 07001 5295 06 5995 01 10 07001 5295 001 5995 01 OL 9 14510 3 1 hu hop h ha 18 hR 12 h IB hdR3 h3 D Eu E HH E074 ERT EdR3 3392 210 27h gd 34 110 363 1300 AV IdSIa Yaddn ALON V SIS3431SAH 1 04 13S HOIH 1 04 135 MOT WuvT LA vin 10 910 SIS3431SAH 1 04 135 1 04 135 MOT 1f 135440 1002 LIAN 1949 LN tin 145440 IN av1 910 dfi 910 din 910 din L 1N 910 V V V V 0 0 V V V V 0 0 0 0 1108110 1N3IN 4910 0409 28 1 082 1 46 pino 8098 0 00 3 01 098 0 1 81 380438 1310 338 601 FONVHO 1 0010 3 001 10 0 49 3uou 3uou 30 5295 01 0000 uo 0 i8 5295 0 10 1 14 5295 0 10 1 40 4 001 3
19. Top Panel Heat Exchanger Cooling Solenoid Heat Exchanger microTHERM User Instructions 27 Figure 6 5 microTHERM Open and Closed Loop Electrical Schematic 1 L1 1T1 9 L2 1L2 1T2 L 113 3 Customer Supplied 1 1 OL Heater Voltage 4 5 KW to 24 KW aL 211 exe 3T1 Pump O 213 2T3 ex Pump Pump Contactor Overload Optional Door Interlock 120V er DI 1 Fuse 2 1F i re d ui Low vw Pressure Low 4 Vay Pressure 1 5 Indication Pump ON bond Sn xi Pump Stop OL 5 o 8 7 1M Motor 11 12113 14 ett Pos Control 1 1 Output 4 Heater 15 3 1 44 Contactor 1M 2 1 1ITC 8 9 e Heater ba 54 KA Control 1M 2 2 1 19 10 y 7 5 2 1 Output 1 21 12 4 22 13 Output 2 Cooling LS 23 14 Solenoid 6 24 15 19 e Cooling 2 25 ys Control Type J ele We TIC 9 27 18 P E Heater Overtemp 11 Output 3 Overtemp Indication e 9 Pump Overload OL 1 P j2 Yay overioas Indication ww 28 microTHERM User Instruc
20. agnetic coil from top of 43 solenoid valve and leave wired to system Remove 43 solenoid valve from top of heat exchanger and keep for reinstallation Remove four 9 bolts and lift 42 heat exchanger from cooling chamber Reuse rubber gasket and 9 bolts to attach new 42 cooling flange to cooling chamber Attach new 40 1 1 2 nipple to flange Attach 43 solenoid and magnetic coil to nipple 9 Attach new 15 close nipple and new 39 elbow to solenoid 10 Replace 1 pipe plug from lower cooling chamber port with 1 x 1 2 reducer 11 Lower cooling chamber port becomes the new cooling inlet 4 amp D microTHERM User Instructions 43 Appendix C microTHERM CMX Open Loop to Closed Loop Cooling Conversion Note All warnings and cautions denoted throughout this user s manual also apply to the modifications listed below General instructions and specifications referring to the open and closed loop systems apply to the field modified units below This sheet details the steps taken and material required to convert a Chromalox CMX microTHERM hot water system from open loop cooling to closed loop cooling The basic operation involves removing the flat plate and replacing it with a heat exchanger bundle Please contact the Chromalox Customer Service department 1 800 368 2493 for more information and to order the necessary materials New Material Required 1 1 4 NPT Tee 1 piece Chromalox part
21. and expenses therefore including but not limited to attorney s fees and indemnifies Chromalox against any liability to Chromalox s vendors arising out of such litigation microTHERM User Instructions 37 Limitation of Remedy Upon Buyer s submission of a claim as provided above and its substantiation Chromalox shall at its option either i repair or replace its Products parts or work at the original f o b point of delivery or ii refund an equitable portion of the purchase price THE FOREGOING IS CHROMALOX S ONLY OBLIGATION AND BUYER S EXCLUSIVE REMEDY FOR BREACH OF WARRANTY AND IS BUYER S EXCLUSIVE REMEDY AGAINST CHROMALOX FOR ALL CLAIMS ARISING HEREUNDER OR RELATING HERETO WHETHER SUCH CLAIMS ARE BASED ON BREACH OF CONTRACT TORT INCLUDING NEGLIGENCE AND STRICT LIABILITY OR OTHER THEORIES BUYER S FAILURE TO SUBMIT A CLAIM AS PROVIDED ABOVE SHALL SPECIFICALLY WAIVE ALL CLAIMS FOR DAMAGES OR OTHER RELIEE INCLUDING BUT NOT LIMITED TO CLAIMS BASED ON LATENT DEFECTS IN NO EVENT SHALL BUYER BE ENTITLED TO INCIDENTIAL OR CONSEQUENTIAL DAMAGES AND BUYER SHALL HOLD CHROMALOX HARMLESS THEREFROM ANY ACTION BY BUYER ARISING HEREUNDER OR RELATING HERETO WHETHER BASED ON BREACH OF CONTACT TORT INCLUDING NEGLIGENCE AND STRICT LIABILITY OR OTHER THEORIES MUST BE COMMENCED WITHIN ONE 1 YEAR AFTER THE DATE OF SHIPMENT OR IT SHALL BE BARRED 38 microTHERM User Instructions Section 10 Index Alarm latching 17 Overtemper
22. ature 13 14 17 Relay Action 17 Cabinet 2 Cavitation 2 21 Closed loop Heat Exchanger 1 Control Output 1 Heat 13 14 28 Control Output 2 Cool 13 14 28 Control Setpoint 13 14 15 Control Voltage Fusing 11 12 Controller Temperature Controller 3 9 13 14 19 23 29 Cooling Chamber 1 Cooling Control 28 Cooling Solenoid 20 27 28 Cooling Water Valve 31 32 Diagnostic Functions 13 21 Diagnostic Indicators 3 13 19 21 28 29 Low Water Pressure 13 19 21 28 Over Temperature 3 13 19 21 22 28 Pump Overload 3 13 19 21 22 28 Draining 24 Electrical Installation 11 Fusing 11 12 31 Control Voltage 11 12 Heat Exchanger 2 27 Closed loop 2 Open loop Removal Replacement 27 microTHERM User Instructions Incoloy sheathed heater 1 2 Indicators Diagnostic 3 13 19 21 Low Pressure 3 13 19 21 28 Overtemp 3 13 19 21 22 28 Pump Overload 3 13 19 21 22 28 Low Pressure Switch 2 MENU selections 13 16 Control PAGE 15 Display PAGE 15 MENU value 16 Motor 30 31 32 Motor Contractor 29 Motor Control 26 28 29 Motor Vent Line 26 Open Loop Heat Exchanger 1 Operating Mode 16 Operating Temperature 1 2 Output Relay 3 17 28 Output Relay 4 17 28 Overtemperature Indicator 13 21 22 28 31 Power requirements 1 Pressure gauges 3 13 19 29 Pressure Indicator Low water 13 19 21 Pressure Relief Valve 1 2 5 6 8 9 19 Pro
23. cess Temperature 13 14 Pump 2 6 8 9 21 24 26 28 32 Pump Indicator Light 18 Removal Replacement 26 Rotation Check 10 18 26 Pump Cavitation 2 21 Pump Housing 1 2 6 9 24 25 26 27 Pump Motor 5 6 8 9 20 21 24 29 31 32 wires 24 Pump Reset Switch 22 39 Replacement Heating Elements and Contactors 29 Replacement Parts 29 Security Code 16 Access 17 Change 17 Security Lock 15 Setpoint 13 14 15 19 20 Change 15 Control 15 Temperature 14 19 Setup Mode 15 Shutdown 20 21 23 Solenoid Valve 2 9 28 Specifications 33 Switch Low Pressure 2 Pressure 1 5 Pump Reset 22 Valve check 5 7 cooling 31 32 pressure relief 1 2 5 6 8 9 19 solenoid 2 9 28 Vent automatic vent line 26 Water Pressure 5 6 diagnostic light 3 13 19 21 regulator 5 Water Temperature 1 40 microTHERM User Instructions Appendix A General Instruction Low Pressure Application Element Over Temperature Cutout Diagnostic Indicator Page reference 13 22 Alarm Relay Action Page Reference 17 Controller 2104 Menu Trouble Shooting All warnings and cautions denoted throughout this user s manual also apply to the CMX 180 model General instructions and specifications referring to the CMX 250 also apply to the CMX 180 with specific differences outlined below The CMX 180 is designed to operate at pressures below 20 psi and tem
24. d diameter fittings may be used if they do not reduce flow rate and increase pressure drop significantly Galvanized steel unions are recommended at all connections If water pressure falls below 20 psi a pressure switch will interrupt pump motor and heater operation Use an external water pressure regulator and back pressure relief valve or regulator set at maximum 125 psi 150 psi with 7 5 hp motor connected in the external fill line to reduce excessive water pressure Not provided on CMX 180 models WARNING Hazard of Explosion Fire and Scalding Burns The water feed line on both open and closed loop systems must not have any obstructions which could prevent expanding water from backing up into the feed line Do not use oils or other synthetic heat transfer fluids This system is for use with water or ethylene glycol and water mixture for freeze protection only as the heat transfer fluid When installing system allow sufficient room to remove the heater element and other serviceable items when necessary 18 inches clearance on sides of unit recommended If the water source is a potable water source a back flow preventer and back pressure relief valve regulator should be installed and may be required by local code Do not install a check valve only on the fill line The inability of the system to flow back into the fill line can lead to excessive pressure Back pressure relief is required To avoid excessive pressures do
25. e Control System This system has been thoroughly engineered carefully built and fully tested to assure years of service Introduction The CMX can be operated at a maximum temperature of 250 F at a minimum pressure of 30psi CMX 180 models do not require minimum pressure Water temperature is maintained by a micro processor based temperature controller which applies heating and cooling as needed Heat is applied by a long life Incoloy9sheathed heater Cooling is either via direct injection in an open loop or through a closed loop heat exchanger Every system is equiped with an automatic vent that removes unwanted air from the system during operation and an ASME pressure relief valve that is factory set to 125 psi 150 psi with 7 5 hp motor A pressure switch ensures adequate water pressure in the system to help prevent pump cavitation and steam buildup on the heater elements which can shorten the lives of the heater and pump The switch is factory set to 20 psi This switch is not included on CMX 180 models Electrical and hydraulic components are located in distinctly separate areas in the system to better manage heat buildup and prevent component damage The pump housing heater and cooling chambers are single cast pieces designed to drastically reduce the chance of leaks and provide ease of service and maintenance Standard casters make it easy to move the system from machine to machine Power requirements for the system are
26. em Operation WARNING On both open Closed loop systems turn on water and insure the water supply lines are free of obstructions BEFORE energizing the heater Such obstructions could prevent the thermal expansion of water from backing up into this line thereby increasing system pressure until the relief valve opens Note This system is equipped with an ASME safety pressure relief valve factory preset at 125 psi or 150 psi with 7 5 hp motor 1 Apply power to the system via the remote disconnect The temperature controller and LOW WATER PRESSURE diagnostics light should illuminate 2 Open supply water line and process valving to allow system to fill Auto air bleed will remove air from the system Any remote air bleed valves should be opened to remove air from process and associated piping 3 LOW WATER PRESSURE diagnostic light should go out when the system is filled and has reached 20 psi The system will not start when light is illuminated 4 Adjust the temperature setpoint to the desired level via the controller front panel arrow keys see page 15 For complete details on operation of temperature control consult the separate 2104 Technical Manual P N 0037 75276 included with the unit Figure 4 1 System Operation CMX Series Temperature Control System 1 Low Water Pressure Indicator will light when power is first applied Indicator will go out when system is filled and reaches 20 psi
27. g COOLING OUTLET COOLING 4 INLET 7 60 4 FROM PROCESS PROCES NIB v CLOSED LOOP CLOSED LOOP Figure 4 Closed Loop Cooling microTHERM User Instructions 45 10 11 12 13 Installation Steps Drain fluid from system and disconnect all power Fig 2 Remove 1 4 NPT elbow 39 nipple 15 and nipple 40 from solenoid valve and keep solenoid valve for reinstallation Fig 2 Remove flange 42 Fig 3 Remove 1 4 coupling 30 from pump inlet nipple 31 and remove coupling from pressure switch 29 Keep pressure switch for reinstallation Fig 4 Install 1 4 NPT tee 14 on pump inlet nipple 31 install compression fitting 46 in 1 4 NPT tee 14 Reinstall pressure switch 29 into top of 1 4 NPT tee 14 Fig 1 Install heat exchanger 42 using new gasket and existing bolts Fig 1 Install the following items onto the heat exchanger 1 2 NPT street elbow 44 1 2 NPT x 3 nipple 40 1 2 NPT tee 38 1 2 x 1 4 NPT bush reducers 45 1 4 NPT x 7 8 nipple 39 compression fitting 46 solenoid valve 43 removed earlier Fig 1 Install 3 8 copper tubing 47 in compression fitting 46 Route tubing to compression fitting 46 near pump inlet shown in Fig 4 Do not kink tubing Fig 3 Remove the x 1 2
28. he heater then remove wires L1 L2 L3 6 Loosen compression fitting on the heater power supply cable Remove cable from the heater 1 Unbolt the heater 4 bolts and remove Remove bussing from old heater and re install on replacement heater using the same orientation 10 Replace heater and reverse procedure A WARNING Close the front electrical enclosure door and retighten the locking screw This must be done to limit access to high voltage components Failure to comply could lead to electric shock or electrocution Figure 6 2 Heater Chamber Photo Remove Top Panel Remove Top Cover on Heater microTHERM User Instructions 25 A WARNING Hazard of electric shock or electrocution Disconnect all power and piping to system Disconnect all power to the system Pump Removal Replacement Bleed pressure and drain all water from the system Remove top and side panels Remove pump motor wiring cover panel 2 screws Note location of pump motor wires and remove ib I9 Loosen and remove vent line see Figure 6 3 Motor Vent Line 7 Remove bolts holding pump motor to the casting 4 bolts and lift motor out of casting 8 Remove impeller and install new mechanical seal and impeller on the new motor 9 Place new motor in system and bolt down 10 Replace vent line and tighten 11 Reconnect wires and replace wiring cover and side panels 12
29. ie 6 2 2 Open Loop Piping 7 249 Closed Loop System d s 9 2 4 Closed Loop Piping Connections disons 10 243 Power Connection en tM 11 31 Control Panel 55 lt 13 24 Controller Displays and 14 33 Controller PAGE MENU Selections ss 15 4 1 Control 19 5 1 Diagnostic due 21 5 2 Pump Reset Re 22 6 1 Chamber Photo uias i 24 6 2 Heater Chamber Photo 25 6 3 Motor Vent 26 6 4 Heat UA OH ER Pep 27 6 5 micro THERM Open and Closed Loop Electrical Schematic 28 6 6 Replacement Pace iar endete itera ied qae ien 30 8 1 ntes tuna tota t nita onn De e 34 82 Controller MENU manie 35 microTHERM User Instructions Section 1 Getting Started Section Contents gt Introduction p System Photo p Model Identification Important Read and understand all instructions in this user s manual and the enclosed 2104 temperature control instruction manual before attempting to install or operate system Congratulations on purchasing the Chromalox CMX Series mi croTHERM Temperatur
30. if any and will be free from defects in material and workmanship under normal conditions of use All claims for defective or nonconforming both hereinafter called defective Products parts or work under this warranty must be made in writing immediately upon discovery and in any event within one 1 year from delivery provided however all claims for defective Products and parts must be made in writing no later than eighteen 18 months after shipment by Chromalox The temperature controller heater and pump chamber casting warranty is extended to three 3 years from date of shipment Defective and nonconforming items must be held for Chromalox s inspections and returned to the original f o b point upon request THE FOREGOING IS EXPRESSLY IN LIEU OF ALL OTHER WARRANTIES WHATSOEVER EXPRESS IMPLIED AND STATUTORY INCLUDING WITHOUT LIMITATION THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE Limitation of Liability Notwithstanding the provisions of this WARRANTY AND LIMITATION Clause it is specifically understood that Products and parts not manufactured and work not performed by Chromalox are warranted only to the extent and in the manner that the same are warranted to Chromalox by Chromalox s vendors and then only to the extent that Chromalox is reasonably able to enforce such warranty it being understood Chromalox shall have no obligation to initiate litigation unless Buyer undertakes to pay all cost
31. luminated 1 Pump motor overload 1 Determine problem and press pump reset button Over Temperature Indicator illuminated System above temperature limit of 260 F 190 F on CMX 180 models 1 Allow unit to cool below 260 F and press 1531 Unit runs but fails to pump water Ihcoming phase reversed on pump motor Swap any two legs on the incoming power Unit will not heat to setpoint Cooling valve stuck open Heater element failure Heater output insufficient Controller needs to be tuned Check for cooling water flow during heat cycle Check current at heater contactor during heating Excessive losses in process or incorrectly sized unit for application Check factory MENU settings page 35 of this manual Refer to 2104 Controller Technical Manual page 35 for further information Unit will not cool to setpoint 1 Inadequate cooling water flow Cooling outlet obstructed Heater contactor fused closed Controller needs to be tuned Open cooling water supply line more and assure adequate pressure Check cooling outlet for obstructions Check voltage across contactor during cooling cycle Check factory MENU settings page 35 of this manual Refer to 2104 Controller Technical manual page 35 for further information If you continue to have problems with the system after review of the
32. mperature make the system easy to understand and operate The 2104 controller has extended capabilities and functions for more technically advanced applications To learn more about how these controller capabilities may be used consult the enclosed 2104 Controller Technical Manual part number 0037 75276 System Outlet Temperature Display Alphanumeric Menu Display in Setup Mode LEDs indicate F or C selected for Process Temperature LED indicates the controller is in Standby mode Setpoint Temperature Display microTHERM User Instructions PAGE MENU Setup Figure 3 3 Controller PAGE MENU Selections All control parameters selections and calibration procedures for the temperature controller are accomplished through simple MENU selections These MENU selections are organized into PAGES The Display PAGE DISP allows you to view the status of the controller The Control Page CTRL allows you to change the control setpoint and security lock Display Control Accessing the Security Lock or Setpoint MENU is accomplished by entering the Setup Mode then selecting the Control PAGE and the desired MENU To enter Setup Mode Hold down the pushbutton for longer than 3 seconds LOCH 123 RESET M Hold for at least y seconds To change the PAGE Setup Mode entered Press and hold the pushbutton while pressing the or M pushbutton the upper display will increment or
33. nd employing wiring by a qualified electrician in accordance with National Electric Code Failure to comply can result in electrical shock or electrocution Hazard of electric shock Disconnect all power before servicing the heat transfer system Failure to comply can result in electrical shock or electrocution Fusing or other over current protection must be supplied to the system by the user The unit is completely wired when shipped The only wiring nec essary is to the blue colored terminals L1 L2 L3 and the green and yellow colored ground To make these connections Figure 2 5 Power Connection Terminals Control Voltage fuse Loosen the screw on the front electrical enclosure door to unlock the latch Open the front electrical enclosure door Using 90 C wire sized per National and local codes run each leg of the three phase supply power and ground to the appropriate terminals as shown in Figure 2 5 A separate fused disconnect is required Locate this fused disconnect near the equipment Codes may require the location of disconnect in sight of operation standing next to the equipment Consult applicable codes for details microTHERM User Instructions 11 Pump Rotation Check 4 With power off check the wiring connections by tugging on the lines Tighten all terminals in the control area These can loosen due to vibration in shipping 5 Close the front electrical enclosure door Pull the top
34. nd these instructions Consult the factory if you have any questions To take the unit out of service the following steps must be done in sequence 1 Set the temperature controller setpoint to 90 F or lower Allow to cool 2 Turn off power to the unit The controller will turn off 3 Turn off the water supply to the unit 4 Disconnect electrical supply to the unit 5 Carefully bleed pressure from the system by loosening a pipe fitting WARNING System may be pressurized Use extreme care while removing piping Disconnect water supply drain and process connections 6 Drain all water from the system microTHERM User Instructions 23 Draining Figure 6 1 Chamber Photo 24 Drain the unit before taking it out of service for a period of time or if it is exposed to freezing temperatures while out of service 1 To drain the unit completely move it to an inclined position with the front of the system raised 2 Remove the lower plugs on cast chambers see Figure 6 1 Chamber Photo Remove these plugs microTHERM User Instructions Heater A WARNING Removal Replacement Hazard of electric shock or electrocution Disconnect all power and piping to system Disconnect all power to the system 1 2 Bleed pressure and drain all water from the system 3 Remove top panel 4 Remove red top cover on the heater see Figure 6 2 Heater Chamber Photo 5 Note location of wires on t
35. nit Do not locate materials that could be damaged by hot water or steam adjacent to the unit Temperature Controller Cooling 1 Valve Thermocouple Probe ressure From Process Relief Valve AT 1 1 4 NPT O To Process 1 1 4 NPT and Water Supply Cooling Inlet gt 1 2 NPT Open Loop Cooling microTHERM User Instructions Figure 2 2 Open Loop Cooling Piping Connections D Chromalox 1 T DRAIN COOLING OUTLET 6 FROM PROCESS TO PROCESS 289 12 Jie WATER SUPPLY COOLING INLET 6 lt 4 lt gt lt 15 gt Rear View Note Dimensions are nominal 3 microTHERM User Instructions Before Before proceeding with the installation of the Closed loop Closed Loop system please take note of the following information rune instalation 1 Reduced diameter fittings may be used if they do not reduce flow rate and increase pressure drop significantly Galvanized steel unions are recommended at all connections 2 If water pressure falls below 20 psi a pressure switch will interrupt pump motor and heater operation Use an external water pressure regulator and back pressure relief valve or regulator set at maximum 125 psi 150 psi with 7 5 hp moto
36. op continued Figure 2 3 Closed Loop System Piping 4 Connect the cooling water supply 30 psi to 80 psi to the unit s 1 NPT WATER SUPPLY COOLING INLET port with suitable pipe or hose Connect the NPT port identified as COOLING OUTLET to a cooling water return line or plant drain that contains no valves or obstructions that could impede discharge Review the condition of potential hot water going down a plant drain Verify that local codes and materials are acceptable for this service Temperature of discharge water could reach 250 F and create steam at atmospheric pressure Temperature Controller Solenoid 1 Cooling Outlet 1 4 NPT Water Supply 1 Cooling Inlet 1 1 2 NPT 1 Thermocouple Pressure 7 Relief Valve rom Process 4 mf 12 4 NPT LE E ee Closed Loop Cooling microTHERM User Instructions 9 Figure 2 4 Closed Loop Piping Connections 0 COOLING OUTLET 177 Chromalox WATER SUPPLY COOLING INLET FROM PROCESS TO PROCESS 2 28 12 li 15 gt Rear View Note Dimensions are nominal 3 3 10 microTHERM User Instructions Electrical Installation 1 2 WARNING Hazard of electric shock The heat transfer system must be grounded using grounding means provided in control box a
37. peratures up to 8 It is constructed with the same quality components as the CMX 250 but the pressure switch is not provided This allows the pump to operate in low pressure applications The Low Water Pressure indicating light on the control panel is disabled A cutout in the heater housing protects the elemnts from damage due to over temperature The over temperature cutout will shut the system off if the heaters are not completely immersed in water Over Temperature indicator is illuminated System temperature has exceeded 190 F instead of 260 F Replace 260 F with 190 E Refer to Section 8 Specifications Fig 8 2 Controller Menu Settings Lower Display Upper Factory Change Display Settings to INPUT PAGE Process Setpoint Upper Limit SPUL 2100 F 180 F OUTPUT 3 Alarm High Setpoint RHi3 2100 F 210 F OUTPUT 4 Alarm High Setpoint AHH 2100 F 210 F Trouble Shooting Guide Page Reference 31 32 Unit stops running but temperature indicator light is not illuminated Replacement Parts Replaces 260 F with 190 F Probable Cause Heating element not immersed no flow Correction Allow unit to cool Check that the element is immersed and flow is adequate Page reference 29 Additional part Identification Part Name Part Over temperature cutout 300 012172 008 microTHERM User Instructions 41 Appendix A microTHERM CMX 180 Open and Closed loop Electrical
38. r connected in the external fill line to reduce excessive water pressure Not provided with CMX 180 models Hazard of Explosion Fire and Scalding Burns 1 To avoid excessive pressures do not connect any valves or obstructions which could prevent free discharge from relief valve in a safe manner Route line so water drains completly Do not allow drain to freeze or corrode shut 2 Do not install a check valve on the fill line The inability of the system to flow back into the fill line can lead to excessive pressure If back flow preventer or check valve is required install back pressure regulator rated for 250 F water with a pressure setting of 30 to 80 psi Back pressure regulator setting must be approximately 10 psi above water supply pressure to minimize water flow directly from supply to drain Hydraulic Installation 1 Locate the unit as close as possible to the controlled process Closed Loop in order to minimize pressure drops Make sure the unit is sitting on a solid level foundation 2 Using 1 1 4 NPT or larger schedule 40 pipe flexible hose suitable for 150 psi and 250 F minimum service conditions can be used connect the 1 1 4 NPT FROM PROCESS and TO PROCESS ports to the mold mold manifold or other process 3 Pipe the entire system to minimize air pockets Provide air bleed valves at high points and drains at low points 8 microTHERM User Instructions Hydraulic Installation Closed Lo
39. r Pushbuttons microTHERM User Instructions 3 Ordering Information Model KW Volts Total Amperage Open Loop Cooling CMX 250 4 4 5 240 13 6 CMX 250 4 4 5 480 6 8 CMX 250 9 9 240 24 5 CMX 250 9 9 480 12 2 CMX 250 12 12 240 31 7 CMX 250 12 12 480 15 8 CMX 250 18 18 240 46 1 CMX 250 18 18 480 23 1 CMX 250 24 24 240 60 5 CMX 250 24 24 480 30 3 Closed Loop Cooling CMX 250 4C 4 5 240 13 6 250 4 4 5 480 6 8 250 9 9 240 24 5 250 9 9 480 12 2 250 12 12 240 31 7 250 12 12 480 15 8 250 18 18 240 46 1 250 18 18 480 23 1 CMX 250 24C 24 240 60 5 CMX 250 24C 24 480 30 3 All voltages are 3 phase 120V control transformer provided with each unit for control power C Suffix indicates 3 8 sq ft heat exchanger for cooling All systems equipped with 30 GPM 20 psi TDH pump standard Optional Pump flows up to 80 GPM and 70 psi TDH available For low pressure applications 250 in the model number is replaced by 180 Pressure switch is not provided 4 microTHERM User Instructions Section 2 Installation Section Contents Before Open Loop Hydraulic Installation gt gt gt Hydraulic Installation Open Loop Cooling Hydraulic Installation Closed Loop Cooling Electrical Installation Before proceeding with the installation of the open loop system please take note of the following important information 1 Reduce
40. the system to cool to this temperature level 10 Press to de energize the pump and disable the system 11 Disconnect power to the unit WARNING Do not leave system unattended in a HOT electrical condition and do not leave system unattended in HOT environmental conditions microTHERM User Instructions Section 5 Diagnostics Section Contents Figure 5 1 Diagnostic Indicators Diagnostic Functions Low Water Pressure Indicators gt Lower Water Pressure gt Pump Overload gt Over Temperature All diagnostic functions will shut down the system and require the operator to remedy the problem before it can be restarted The pump heater and cooling will not operate while the pressure is low The Low Water Pressure Indicator will illuminate when the system pressure is below 20 psi This warning system is designed to reduce the possibility of pump cavitation and boiling on the heater element at higher operating temperatures Disabled on CMX 180 models microTHERM User Instructions 21 Pump Overload The Pump Overload Indicator will illuminate when the pump Indicator draws too much current Low line voltage single phase power input and a seized pump motor are all possible causes for pump overload AN WARNING Disconnect system power if the Pump Overload Indicator is illuminated Hazard of electric shock or electrocution Disconnect all power and piping to the system After the system power
41. tions Replacement Heating Elements and Contactors microTHERM Model Replacement Parts Open Loop Closed Loop Voltage Heating Element Heater Contactor CMX 4 CMX 4C 240 155 554807 523 072 057576 050 480 155 554807 523 072 057576 050 CMX 9 CMX 9C 240 155 554807 512 072 057576 050 480 155 554807 512 072 057576 050 CMX 12 CMX 12C 240 155 554807 524 072 057576 050 480 155 554807 524 072 057576 050 CMX 18 CMX 18C 240 155 554807 519 072 057576 051 480 155 554807 519 072 057576 050 CMX 24 CMX 24C 240 155 554807 515 072 057576 051 480 155 554807 515 072 057576 050 Replacement Parts Common to Most Models Identification Part Name Part are 3 4 HP Motor 240V 480V 193 121843 227 Solenoid Valve 344 121780 012 eee Pressure Relief Valve 344 048419 004 Automatic Air Vent 344 053181 001 Pressure 130 118661 021 Q Pressure Switch 292 121927 028 Pump Mechanical Seal 251 121946 019 Q E Heat Exchanger Bundle Closed Loop 353 123367 002 Heater Cooling Gasket 2 total 132 146012 020 eee eee Thermocouple 309 121759 063 Temperature Controller 3
42. y to the field modified units below This sheet details the steps taken and material required to convert a Chromalox CMX microTHERM hot water system from closed loop cooling to open loop cooling The basic operation involves removing the heat exchanger bundle and replacing it with a flat plate Please contact the Chromalox Customer Service department for more information and to order the necessary materials New Material Required 1 1 4 NPT Pipe Plug 1 piece Chromalox part number 218 075439 036 2 1 4 NPT x 1 1 2 Nipple 1 piece Chromalox part number 198 122817 013 3 1 4 NPT Elbow 1 piece Chromalox part number 107 122815 001 4 1 4 NPT Close Nipple 1 piece Chromalox part number 198 122817 002 5 1 1 2 NPT Reducer 1 piece Chromalox part number 032 120942 019 6 Open loop cooling flange 1 piece Chromalox part number 121 510702 017 Replacement Steps Figures 1 and 2 show the layout of the cooling configuration for both closed and open loop cooling These parts are located on the top of the cooling chamber Use pipe tape or other sealing compound when attaching threaded connections Figure 1 Closed Loop Cooling Figure 2 Open Loop Cooling Note Refer to Figures 3 and 4 for location of components Remove 47 3 8 copper tube and compression fittings from heat exchanger and tee above pump inlet Place 1 4 pipe plug into tee above pump inlet where copper tube was connected Pop m
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