Tutco SureHeat Serpentine II, Руководство по эксплуатации

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TROUBLESHOOTING AND HEATER REPLACEMENT
1.
Note that “TYPICAL” Element Life is APPROXIMATELY 5000 hours. This is based on heater
element operating at or below temperatures shown on PERFORMANCE CURVE. In addition to
normal end of life, elements can fail due to mechanical damage, or problems with the control system.
2.
If an element has failed prematurely, it should be inspected by SureHeat to determine the cause
of the element failure.
3.
When replacing or troubleshooting heaters, turn off power to the system and be sure to follow
lock-out/tag-out procedures.
a. For Troubleshooting Heater
i.) Use multi-meter to check continuity between:
1. Power terminals H1 to H2
2. Thermocouples positive (+ yellow) to negative (- red)
ii.) If there is continuity on all above tests, check system wiring:
1. Crossed thermocouple wires.
2. Reversed thermocouple wire polarity – Note: RED is NEGATIVE ( - ).
3. Verify inlet air temperature is below set point on INLET
TEMPERATURE controller.
iii.) If there is no continuity on any test, then contact your local TUTCO SureHeat
representative for assistance.
4.
Remove entire heater assembly from system. Internal components are typically not replaceable.
5.
Reconnect thermocouples, power and ground wires for new/replacement heater.
6.
Attach any covers and operate heater per operating manual.