Hotstart OCLA, Installation & Operation Manual

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18
installation
&
operation manual
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ocle
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ocla heating system
4.5 TROUBLESHOOTING
SYMPTOM POSSIBLE CAUSES SOLUTION
System fault Pump not primed properly Bleed all trapped air from lines. Restart system.
Isolation valves may be closed Open valves. Restart system.
Hose kinked or crushed Remove obstruction. Restart system.
Leak in suction line Repair leak. Restart system.
Pump motor turning
backwards
Reverse any two leads on power (in three-phase system).
Restart system. See
SECOIO 3.3.1
.
Control TCR failure: closed Check and replace if necessary. See
SECOIO 4.2.9
.
Motor failure Check and replace if necessary. Restart system.
Motor contactor failure Check contacts and replace if needed. Restart system.
Motor protection switch
tripped
Check and reset switch. If problem occurs again, check
motor. Restart system.
RTD failure Check TCR and RTD. See SECOIO 4.2.9 .
RTD cable failure Check TCR and RTD. See SECOIO 4.2.9 .
Fluid temperature
too low
Motor failure Check motor. Replace if necessary.
Heater has been turned off
and fluid is cold
Allow time for the heating system to heat fluid.
Heating element failed Check elements for continuity. Replace element if
necessary.
Element breaker tripped Check for element short to ground. If no short, reset
breaker.
Element contactor failed Check contacts and coil. Replace if necessary.
Motor contactor failed Check contacts and coil. Replace if necessary.
Control TCR failure: open Check and replace if necessary. See SECOIO 4.2.9 .
Control TCR set point too low Adjust set point for control TCR. See SECOIO 3.2.2.
RTD failure Check TCR and RTD. See
SECOIO 4.2.9
RTD cable failure Check TCR and RTD. See
SECOIO 4.2.9
.