Trouble Analysis
Use the tables in this section to assist in identifying the cause or causes of a malfunction in Air Handler operation. The column
header RECOMMENDED ACTION will suggest repair procedures.
Note: These tables are intended as a diagnostic aid only. For detailed repair procedures, contact your local Trane Service
Company.
General
41
Symptom
Probable Cause
Recommended Action
Bearing noise
Poor alignment
Loosen bearing setscrews and realign
Inadequate lubrication
Grease bearing(s) (Plummer block)
Bearing is excessively hot
Overtensioned belts
No lubricant (plummer block type)
Overlubrication
Misaligned bearing
Retension belts
Apply grease
Clean surface of grease and purge
Correct alignment and check that shaft is level
Motor stalls
Low line voltage
Short circuit, phase to earth (open Phase)
Overloaded motor
Check across AC line. Correct voltage if possible
Check line phases and terminal block connection.
Reduce system load, fan driven speed or increase
motor capacity
Motor overheats
Motor fan is clogged with dirt preventing
proper ventilation
Overloaded motor
Motor fan damaged
Remove fan cover, clean fan and replace cover
Reduce load or replace with larger motor
Replace motor fan / clean
Excessive vibration
Poor pulley alignment
Transport brackets not removed
Overtensioned belts
Fan / unit vibration isolator collapsed
Check pulley alignment
Remove items used for transport only
Retension belts
Replace vibration isolator
Excessive vibrator
Misalign drive
Align drive
Excessive motor noise
Motor mounting bolts loose
Worn motor bearings
Fan rubbing on fan cover
Tighten motor mounting bolts
Replace bearings and seals
Remove interference in motor fan housing
Excessive fan noise
Fan rubbing on inlet cone or guard
Worm fan bearings
Loose impeller
Remove item and repair
Replace bearings and seals
Retighten hub
Premature belt wear
Incorrect tension or alignment
Dirt or grease on belts
Belts rubbing
Odd belts being fitted
Re-tension and align
Clean belts and pulleys; check for grease leaks
Remove obstruction
Replace with full set
Filter collapsing
Blocked with dirt
Air velocity too high
Filter wrong size
Change at advised dirty condition
Check unit running conditions Replace
with filter sizes as supplied from Trane
Summary of Contents for CLCP Euro 25
Page 18: ...Assembly Installation CLCP EURO CLCP EURO XP Paneling 18...
Page 22: ...Assembly Installation CLCP EURO XP CKD At Jobsite 22...
Page 23: ...23 Assembly Installation CLCP...
Page 24: ...Assembly Installation CLCP 24...
Page 40: ...Maintenance 40 Figure 20 Belt Tension Measurement...
Page 42: ...Trouble Analysis 42...
Page 43: ...43 Trouble Analysis Pulley and Belt...
Page 44: ...Appendix A Fan and Arrangement 44 Fan Discharge Arrangement...
Page 51: ...Typical Motor Wiring Diagram 51...
Page 52: ...52 Service Light and Door Switch Wiring...
Page 53: ...Factory Installed VFD TR200 Wiring Setting 53...
Page 54: ...Factory Installed VFD TR200 Wiring Setting 54 TR200 BASIC SETTING_OPEN LOOP...
Page 56: ...Pre Start Up Checklist 56...
Page 57: ...Pre Start Up Checklist 57...