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Chromalox MicroTherm CMX Series, Installation & Operation Manual, Page: 17 / 30

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Chromalox MicroTherm CMX Series Installation & Operation Manual Download Page 17

15

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

CMX-4

CMX-4C

480

155-554807-523

072-057576-050

CMX-9

CMX-9C

240

155-554807-512

072-057576-050

CMX-9

CMX-9C

480

155-554807-512

072-057576-050

CMX-12

CMX-12C

240

155-554807-524

072-057576-050

CMX-12

CMX-12C

480

155-554807-524

072-057576-050

CMX-18

CMX-18C

240

155-554807-519

072-057576-051

CMX-18

CMX-18C

480

155-554807-519

072-057576-050

CMX-24

CMX-24C

240

155-554807-515

072-057576-051

CMX-24

CMX-24C

480

155-554807-515

072-057576-050

Replacement Parts Common to All Models

Identification #

Part Name

Part Number

1

3/4 HP Motor 240V/480V 

193-121843-227

2

Solenoid Valve 

344-121780-012

3

Pressure Relief Valve

344-048419-004

4

Automatic Air vent 

344-053181-001

5

Pressure Gauge 

130-118661-021

6

Pressure Switch 

292-121927-028

7

Pump Mechanical Seal 

251-121946-019

8

Heat Exchanger Bundle (Closed Loop)

353-123367-002

9

Heater/Cooling Gasket (2 total)

132-146012-020

10

Thermocouple 309-121759-063

11

Switch, Start/Stop 
Switch Indicator Bulb

292-122882-043
213-122066-034

12

Diagnostic Indicator Light (3 total) 

213-122066-041

13

Motor Contactor 240/480V 

072-123534-064

14

Auxillary Motor Contact Block

071-122886-055

15

Motor Thermal Overload 240V 
Motor Thermal Overload 480V

359-122078-096
359-122078-095

16

Transformer 240/480V 

315-303786-001

17

Caster (4 total) 

375-123425-003

18

Control Voltage Fuse 

128-123445-005

19

Heater Contactor

See table above

These parts may vary for non-catalog items.
Please consult your local Chromalox representative. (800-443-2640 or www.chromalox.com)

Thermal Devices, Inc.  Mount Airy, Maryland USA   www.thermaldevices.com

Thermal Devices, Inc.  Mount Airy, Maryland USA   www.thermaldevices.com

Summary of Contents for MicroTherm CMX Series

Page 1: ...ion Manual Circulating Water Temperature Control System PQ450 161 123417 036 March 2019 Thermal Devices Inc Mount Airy Maryland USA www thermaldevices com Thermal Devices Inc Mount Airy Maryland USA w...

Page 2: ...11 Section 6 Maintenance 12 Section 7 Troubleshooting 17 Section 8 Speci cations 18 Appendix A CMX Closed Loop to Open Loop Cooling Conversion 19 Appendix B CMX Open Loop to Closed Loop Cooling Conve...

Page 3: ...SME 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...

Page 4: ...nt draw in the motor Long life mercury contactor switches heater power for millions of cycles and quiet trouble free operation Compact rugged cabinet fits into tight spaces Rolling casters allow easy...

Page 5: ...plifying maintenance Figure 1 2 Control Panel Ordering Information Pump START STOP Pushbuttons Open Loop Cooling Model kW Volts Total Amperage CMX 250 4 4 5 240 13 6 CMX 250 4 4 5 480 6 8 CMX 250 9 9...

Page 6: ...ot connect any valves or obstructions which could prevent free discharge from relief valve in a safe man ner Route line so water drains completely Do not allow drain to freeze or corrode shut Hydrauli...

Page 7: ...nominal 3 8 Rear View Chromalox DRAIN COOLING OUTLET FROM PROCESS TO PROCESS 1 7 8 6 6 4 7 15 WATER SUPPLY COOLING INLET 12 5 16 28 1 2 Thermal Devices Inc Mount Airy Maryland USA www thermaldevices c...

Page 8: ...drain Hydraulic Installation Closed Loop 1 Locate the unit as close as possible to the con trolled process in order to minimize pressure drops Make sure the unit is sitting on a solid level foundatio...

Page 9: ...T WATER SUPPLY COOLING INLET FROM PROCESS TO PROCESS 1 7 8 6 6 4 7 15 12 5 16 28 1 2 Rear View Note Dimensions are nominal 3 8 S and TO PR Thermal Devices Inc Mount Airy Maryland USA www thermaldevice...

Page 10: ...quipment Consult applicable codes for details 4 Pump Rotation Check With power off check the wiring connections by tugging on the lines Tighten all terminals in the control area These can loosen due t...

Page 11: ...nd onward will have been equipped with a Chromalox model 4081 standard controller or 4082 advanced controller For these units please reference the 4081 4082 Quick Start Manual Document PK531 0037 7556...

Page 12: ...lluminate 7 Once temperature has stabilized at the setpoint level review controllability of the system If the temperature is uctuating at an unacceptable level consult the temperature control instruct...

Page 13: ...ect system power if the Pump Overload Indicator is illuminated Hazard of electric shock or elec trocution Disconnect all power and piping to the system After the system power is disconnected solve the...

Page 14: ...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 loos ening a pipe tting...

Page 15: ...ove cable from the heater 8 Unbolt the heater 4 bolts and remove 9 Remove Bussing from old heater and re install on replacement heater using the same orientation 10 Replace heater and reverse procedur...

Page 16: ...ocution Pump Motor Vent Line Heater Element Housing Motor Pump Housing Figure 6 3 Motor Vent Line Heat Exchanger Removal Replacement Closed loop system 1 Disconnect all power to the system 2 Bleed pre...

Page 17: ...344 048419 004 4 Automatic Air vent 344 053181 001 5 Pressure Gauge 130 118661 021 6 Pressure Switch 292 121927 028 7 Pump Mechanical Seal 251 121946 019 8 Heat Exchanger Bundle Closed Loop 353 123367...

Page 18: ...PAGE HEAT COOL OUT3 OUT4 F C AUX PV SP Chromalox CMX Series Temperature Control System HEATER CONTACTOR 1C 20 17 TRANSFORMER AUX CONTACT BLOCK 15 19 FUSE 1F CONNECT _____VOLT SUPPLY HERE MOTOR CONTAC...

Page 19: ...ermine the problem and press pump reset button Over Temperature Indicator illuminated 1 System above temperature limit of 600 F 1 Allow unit to cool below 550 F and press reset on over temperature con...

Page 20: ...sed cooling water ow 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 op...

Page 21: ...of the cooling con guration 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...

Page 22: ...99 122818 003 3 1 4 NPT x 7 8 Nipple 1 piece 198 122817 002 4 1 2 NPT x 3 Nipple 1 piece 198 122817 090 5 1 2 NPT Street Elbow 1 piece 107 114567 005 6 Bush Reducer 1 2 x 1 4 NPT 2 pieces 032 121003 0...

Page 23: ...AIN COOLING OUTLET OPEN LOOP Fig 2 Figure B4 Closed Loop Cooling CLOSED LOOP CLOSED LOOP WATER SUPPLY COOLING INLET FROM PROCESS TO PROCESS COOLING OUTLET Fig 1 Thermal Devices Inc Mount Airy Maryland...

Page 24: ...4 NPT bush reducers 45 1 4 NPT x 7 8 nipple 39 compression tting 46 solenoid valve 43 removed earlier 8 Fig 1 Install 3 8 copper tubing 47 in compres sion tting 46 Route tubing to compression tting 4...

Page 25: ...ower Limi 0 00 Primary Power Upper Limit 100 00 Secondary Power Lower Limit 0 00 Secondary Power Upper Limit 100 00 Sensor Break Off Set Point Lower Limit 32 F Set Point Upper Limit 250 F Set Point Ra...

Page 26: ...Secondary Power Lower Limit 0 00 Secondary Power Upper Limit 100 00 Sensor Break Off Set Point Lower Limit 32 F Set Point Upper Limit 275 F Set Point Ramp Rate Off Main setpoint source Local Set point...

Page 27: ...ondary Power Lower Limit 0 00 Secondary Power Upper Limit 100 00 Sensor Break Off Set Point Lower Limit 32 F Set Point Upper Limit 275 F Set Point Ramp Rate Off Main setpoint source Local Set point Al...

Page 28: ...00 Secondary Power Lower Limit 0 00 Secondary Power Upper Limit 100 00 Sensor Break Off Set Point Lower Limit 32 F Set Point Upper Limit 275 F Set Point Ramp Rate Off Main setpoint source Local Set po...

Page 29: ...ary Power Lower Limit 0 00 Secondary Power Upper Limit 100 00 Sensor Break Off Set Point Lower Limit 32 F Set Point Upper Limit 250 F Set Point Ramp Rate Off Main setpoint source Local Set point Alter...

Page 30: ...i windup limit 100 Primary Cycle Time 30 0 s Secondary Cycle Time 10 0 s Primary Power Lower Limit 0 00 Primary Power Upper Limit 100 00 Secondary Power Lower Limit 0 00 Secondary Power Upper Limit 10...

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