Related Manuals for Trane LWHA
Summary of Contents for Trane LWHA
- Page 1 TRANE ® TRANE Installation Operation Maintenance Belt Driven & Direct Drive Low Height Air handler (LWHA) Model LWHA BC-SVX002-E4 (Sept 2011)
- Page 2 This manual covers the installation, cover all variations in systems, nor to operation and maintenance of the provide for every possible contingency Trane Chilled Water Blower coil Air to be met in connection with Handlers. LWHA is completely installation. Should further information...
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Page 3: Table Of Contents
TRANE ® Contents Model Nomenclature General Specification Unit Installation Dimension Data 9-12 Electrical Wiring Diagram Operation / Start Up Maintenance 15-17 Trouble Analysis 18-20... - Page 4 TRANE ® LWHA Model Nomenclature L W H A 0 1 3 E A 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30...
- Page 5 TRANE ® LWHA Model Nomenclature L W H A 0 1 3 E A 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30...
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Page 6: General Specification
TRANE ® General Specification - LWHA-013 thru 063-EE... - Page 7 TRANE ® General Specification - LWHA-013 thru 063-EE...
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Page 8: Unit Installation
RIGGING. DO NOT LIFT THE UNIT following: ABOVE PERSONNEL. FAILURE TO 1. LWHA shall be installed for hori- A field fabricated auxiliary drain pan OBSERVE THESE WARNINGS MAY zontal application only. may be installed under the unit, and RESULT IN PERSONAL INJURY, 2. - Page 9 Unit Installation Coil Connections shown in Figure 4. Drain Connection IMPORTANT size is 1” BSPT for all units. The water coils for LWHA units are of a TO AVOID DAMAGING THE COIL 1-Row(Heating), 4-Row CONNECTION IT IS ESSENTIAL Row(Cooling) design with high...
- Page 10 TRANE ® Unit Installation...
- Page 11 TRANE ® Unit Installation...
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Page 12: Dimension Data
TRANE ® Dimension Data Low Height Air Handling Unit Double Wall - Direct Driven LWHA 013/023 - LH Coil... - Page 13 TRANE ® Dimension Data Low Height Air Handling Unit Double Wall - Direct Driven LWHA 033/043/053 - LH Coil...
- Page 14 TRANE ® Dimension Data Low Height Air Handling Unit Double Wall - Belt Driven LWHA 013/023/033 - LH Coil...
- Page 15 TRANE ® Dimension Data Low Height Air Handling Unit Double Wall - Belt Driven LWHA 043/053/063 - LH Coil...
- Page 16 TRANE ® LWHA Electrical W iring Diagram Below are the wiring diagrams for Fan Motor Wiring Termination LWHA. (Six Terminal) Motors up to 2.2 kW or 3.0 HP are suitable for Direct-On-Line starting. Larger Motors are suitable for both autotransformer Star-Delta starting.
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Page 17: Operation / Start Up
TRANE ® Operation / Start-Up Pre-Start-Up Inspection Start-Up procedures Perform the following checks and After completing all items under "Pre- inspections before operating the unit. Start-Up", the unit may be started and the following checks and adjustments Inspection Checklist performed:... -
Page 18: Maintenance
TRANE ® Maintenance Change / Clean Filters readjust to the maximum value. WARNING To measure belt tension, use a belt Change or clean air filters at least twice tensioner as shown in Figure 6. WHEN INSTALLING a year. Filters will require more... - Page 19 TRANE ® Maintenance...
- Page 20 TRANE ® Maintenance Fan Belt Maintenance Maintenance Contract The equipment described in this Training manual is the result of many years of research continuous Clean fan belts and pulleys with a dry development. cloth. Oil and grease must be kept off...
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Page 21: Trouble Analysis
TRANE ® Trouble Analysis Use the tables in this section to assist WARNING in identifying the cause of causes of a malfunction in LWHA operation. The DISCONNECT ELECTRICAL column header RECOMMENDED POWER PRIOR TO ACCESS ACTION will suggest repair INTO A FAN DUCTWORK. EVEN procedures. - Page 22 TRANE ® LWHA Series Trouble Analysis Symptom Probable cause Recommended Action Bearing is excessively hot Over tensioned belts. Adjust tension. No lubricant / lubrication dry-out Replace bearing. Misaligned bearing. Correct alignment. Check shaft level. Motor fail to start Blown fuse or open circuit breaker.
- Page 23 TRANE ® LWHA Series Trouble Analysis Symptom Probable cause Recommended Action Rapid motor bearing wear Excessive overhung load due to Check belt tension and overhung load. overtensioned drive. Excessive overhung load due to a Replace sheave with larger one. small diameter motor sheave.
- Page 24 Stocking Location Malaysia Trane has a policy of continuous product and product data improvement and reserves the right to charge For more information, contact your local district design and specifications without notice. Only qualified technicians should perform the installation and servicing of equipment referred to in this publication.