Hussmann ISLA IM-04-I3-S, Инструкция по установке и эксплуатации

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17. Troubleshooting General Issues
Condition Troubleshooting
Water is on the Floor Caution! W ater on fl ooring can cause much damage! Until cause is determined (and
repaired), following these procedures:
Use wet-dry vacuum (or mop & bucket) to remove standing water.
Use 'catch pans' for water to drain into. Swap out regularly until case has completely
drained.
Check that the drain trap is free of debris.
Check that the PVC drain pipes are correctly positioned over evaporator pan.
Check store conditions. To prevent condensation in NSF® Type 1 environments,
maximum conditions are to be 55% humidity / 75° Fahrenheit. For NSF® Type 2,
maximum conditions are to be 60% humidity / 80° Fahrenheit. See serial label (at case
rear near main power switch) for NSF® Type of your case.
Check that evaporator pan is plugged in.
Caution! Evaporator pan may be malfunctioning. If so, water will overfl ow pan and seep
onto fl ooring causing damage! Until evaporator pan is functioning (or is replaced).
Caution! Disruption of power can cause water to overfl ow pan and seep onto fl ooring
causing damage! Check that power to case is constant. Until power is restored,
following these procedures:
When power to case is restored, evaporator pan should function properly and water will
no longer overfl ow onto fl ooring.
Fan Emits Excessive
Noise Check that the case is aligned, level and plumb.
Check evaporator fan for cleanliness.
Unplug fan motors; check motor shaft for excessive bearing wear.
Check the fan motors are securely mounted in brackets.
Verify that fan blades are securely mounted to fan motor.
Check that nothing is preventing blade rotation.
Check that the fan shroud is properly secured.
Fans are not Working Check that the MAIN power switch (if present) is ON.
Check that fans are plugged into fan shroud.
Check for foreign material obstructing fan performance.
Check that fan blades freely rotate within fan shrouds.
Check that power is going to fans.
Check that fan wiring is connected on terminal blocks.
System is not Operating Check that the utility power is on.
Check the circuit breaker box for tripped circuits.
Case is not Holding
Temperature If a large amount of warm product was added to the case, it will take time for the
temperature to adjust. Product should be pre-chilled before placing in display case.
Check Temperature Controller section in this manual
Check that the case is not in the sun or near heat or air conditioning vent.
If case is located near outside doors, temperature fl uctuation can hinder unit's ability to
maintain temperature.
Check Set Point Temperature; it may be adjusted too high.