6-1
UGH025-0504 Thermolator TW Series
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Before Beginning . . . . . . . . . . . . . . . . . . . . . .6-2
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A Few Words of Caution . . . . . . . . . . . . . . . .6-2
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Identifying the Cause of a Problem
for the TW Control . . . . . . . . . . . . . . . . . . .6-3
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Identifying the Cause of a Problem
for the TW-1, TW-2 Control . . . . . . . . . . . .6-4
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TW Control Alarms . . . . . . . . . . . . . . . . . . . .6-5
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TW Control Mechanical/Electrical Alarms .6-11
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TW-1, TW-2 Control Shut Down Alarms . .6-12
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TW-1, TW-2 Control Warning Alarms . . . . .6-13
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TW-1, TW-2 Control Other Warnings . . . . .6-15
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TW-1, TW-2 Control System Alarms . . . . .6-16
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Thermolator Will Not Power Up . . . . . . . . .6-17
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Replacing the TW Control . . . . . . . . . . . . .6-18
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Checking and Replacing Fuses . . . . . . . . .6-19
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Resetting Overloads . . . . . . . . . . . . . . . . . .6-20
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Replacing Pump Overload . . . . . . . . . . . . .6-20
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Replacing the Motherboard . . . . . . . . . . . .6-21
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Replacing the Heater
Contactor . . . . . . . . . . . . . . . . . . . . . . . . .6-22
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Checking Thermocouples . . . . . . . . . . . . . .6-23
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Replacing Thermocouples . . . . . . . . . . . . .6-23
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PT1000 Sensor Readings TW Control . . . .6-24
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Repairing Cooling Valves . . . . . . . . . . . . . .6-25
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Repairing Solenoid Valves . . . . . . . . . . . . .6-26
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Repairing Motorized Valves . . . . . . . . . . . .6-27
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Replacing Heater Elements . . . . . . . . . . . .6-28
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Removing the Pump . . . . . . . . . . . . . . . . . .6-30
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Disassembling and Assembling
3/4 - 2 HP Pumps . . . . . . . . . . . . . . . . . . .6-31
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Disassembling and Assembling
3 - 7.5 HP Pumps . . . . . . . . . . . . . . . . . . .6-32
TROUBLESHOOTING
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