Troubleshooting

Table 15 Dehumidification troubleshooting

 

 

 

 

Symptom

Possible Cause

Check or Remedy

 

 

 

 

Control not calling for

Check monitor status.

 

dehumidification

 

 

Compressor contactor not pulling in

See 7.5.1 - Compressor Functional

No dehumidification

 

Check and Table 14.

 

Compressor won't run; fuse blown or

See 7.5.1 - Compressor Functional

 

CB tripped

Check and Table 14. Check fuses or CBs

 

 

and contacts. Check line voltage

Table 16 Glycol pump troubleshooting

 

 

 

 

Symptom

Possible Cause

Check or Remedy

 

 

 

Suddenly stops pumping

Clogged strainer or impeller

Clean out debris.

 

 

 

Suddenly slow pumping

Clogged impeller, diffuser, or line

Clean out debris and use strainer.

 

 

 

Excessive leakage around the pump

Worn seal or packing

Replace seal or packing.

shaft while operating

 

 

 

Worn impeller or seal

Replace with new impeller or seal.

 

 

 

 

Suction lift too high

Relocate pump closer to supply.

Performance poor

 

 

Motor not up to speed; low voltage

Larger lead wires may be required. Check

 

for proper line voltage (±10%).

 

 

 

Worn bearings

Replace pump

 

 

 

 

Worn motor bearings

Replace pump

 

 

 

 

Low discharge head

Throttle discharge-improve suction

Noisy operation

conditions.

 

 

Debris lodged in impeller

Remove cover and clean out.

 

 

 

 

Cavitating pumps

Adjust system pressures.

 

 

 

Table 17 Infrared humidifier troubleshooting

 

 

 

 

Symptom

Possible Cause

Check or Remedy

 

 

 

 

 

Check water supply.

 

 

 

 

Humidifier pan not filling

Check fill valve operation

 

 

 

Check drain stand pipe adjustment

 

 

 

 

 

 

 

Check for clogged waterline

 

 

 

 

Control not calling for humidity

Check monitor status

 

 

 

 

 

Check visually. If contact is made, check

No humidification

 

line voltage after contactor and fuses or

 

 

CBs.

 

Humidity contact not pulling in

 

 

Check for open humidifier safety stat.

 

 

Jumper between terminals P35-6 and

 

 

P35-15. If contactor pulls in, replace

 

 

safety. Remove jumper.

 

 

Replace bulb. Loosen lead on old bulb.

 

Humidifier bulb burned out

Trim excess lead length on new bulb to

 

 

avoid shorts.

59

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Emerson 3000/ITR manual Dehumidification troubleshooting, Glycol pump troubleshooting, Infrared humidifier troubleshooting

3000/ITR specifications

The Emerson 3000/ITR is a powerful and versatile instrument designed for industrial automation and process control applications. This modular platform integrates advanced features and technologies tailored to meet the needs of diverse industries including oil and gas, pharmaceuticals, and manufacturing.

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