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Installer's Guide
Side Discharge HP Models
For coastal applications where units are installed within one (1) mile of salt water, epoxy coated models are recommended.
These models have an 8 week lead time after order.
4TWL6018A1000A
4TWL6024A1000A
4TWL6030A1000A
4TWL6036A1000A
4TWL6042A1000A
4TWL6048A1000A
4TWL6060A1000A
Only qualified personnel should install and service the equipment. The installation, starting up, and servicing of heating, ventilating, and
air-conditioning equipment can be hazardous and requires specific knowledge and training. Improperly installed, adjusted or altered
equipment by an unqualified person could result in death or serious injury. When working on the equipment, observe all precautions in the
literature and on the tags, stickers, and labels that are attached to the equipment.
February 2020
E E p p o o x x y y C C o o a a t t e e d d M M o o d d e e l l
4TWL6018A1COTA
4TWL6024A1COTA
4TWL6030A1COTA
4TWL6036A1COTA
4TWL6042A1COTA
4TWL6048A1COTA
4TWL6060A1COTA
S S A A F F E E T T Y Y W W A A R R N N I I N N G G
1 1 8 8 - - B B C C 9 9 9 9 D D 1 1 - - 1 1 D D - - E E N N
N N o o t t e e : : "Graphics in this document are for representation
only. Actual model may differ in appearance."
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Table of Contents
Troubleshooting
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Summary of Contents for Trane 4TWL6018A1000A
- Page 1 These models have an 8 week lead time after order. E E p p o o x x y y C C o o a a t t e e d d M M o o d d e e l l 4TWL6018A1000A 4TWL6018A1COTA...
- Page 2 SAFETY SECTION C C A A U U T T I I O O N N I I m m p p o o r r t t a a n n t t — This document contains service information. This is customer property and is to remain G G R R O O U U N N D D I I N N G G R R E E Q Q U U I I R R E E D D ! ! with this unit.
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Page 3: Table Of Contents
Table of Contents Unit Location Considerations ....4 System Start Up ......18 Unit Location Considerations . -
Page 4: Unit Location Considerations
Unit Location Considerations Table 1. Unit Dimensions (in inches) and Weight SERVICE 1.50 TYP PANEL ACCESS PANEL .43 TYP 18-BC99D1-1D-EN... - Page 5 U U n n i i t t L L o o c c a a t t i i o o n n C C o o n n s s i i d d e e r r a a t t i i o o n n s s Table 2.
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Page 6: Unit Location Considerations
U U n n i i t t L L o o c c a a t t i i o o n n C C o o n n s s i i d d e e r r a a t t i i o o n n s s Unit Location Considerations Table 3. - Page 7 U U n n i i t t L L o o c c a a t t i i o o n n C C o o n n s s i i d d e e r r a a t t i i o o n n s s Table 3.
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Page 8: Unit Preparation
U U n n i i t t L L o o c c a a t t i i o o n n C C o o n n s s i i d d e e r r a a t t i i o o n n s s Unit Preparation Setting Up the Unit Table 6. -
Page 9: Refrigerant Line Considerations
U U n n i i t t L L o o c c a a t t i i o o n n C C o o n n s s i i d d e e r r a a t t i i o o n n s s I I m m p p o o r r t t a a n n t t : : H H e e a a t t P P u u m m p p m m o o d d e e l l s s s s h h o o u u l l d d n n e e v v e e r r b b e e s s t t a a c c k k e e d d ! ! Refrigerant Line Considerations... - Page 10 U U n n i i t t L L o o c c a a t t i i o o n n C C o o n n s s i i d d e e r r a a t t i i o o n n s s Table 10.
- Page 11 U U n n i i t t L L o o c c a a t t i i o o n n C C o o n n s s i i d d e e r r a a t t i i o o n n s s Table 13.
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Page 12: Refrigerant Line Brazing
U U n n i i t t L L o o c c a a t t i i o o n n C C o o n n s s i i d d e e r r a a t t i i o o n n s s Refrigerant Line Brazing Table 16. - Page 13 U U n n i i t t L L o o c c a a t t i i o o n n C C o o n n s s i i d d e e r r a a t t i i o o n n s s Table 16.
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Page 14: Refrigerant Line Leak Check
U U n n i i t t L L o o c c a a t t i i o o n n C C o o n n s s i i d d e e r r a a t t i i o o n n s s Refrigerant Line Leak Check Table 17. -
Page 15: Service Valves
Service Valves Table 18. Open the Gas Service Valve 1/4 Turn Only Counterclockwise for Full Open Position Valve Stem Unit Side of Valve Pressure Tap Port Gas Line Connection Table 19. Open the Liquid Service Valve W W A A R R N N I I N N G G S S E E R R V V I I C C E E V V A A L L V V E E S S ! ! F F a a i i l l u u r r e e t t o o f f o o l l l l o o w w t t h h i i s s w w a a r r n n i i n n g g w w i i l l l l r r e e s s u u l l t t i i n n a a b b r r u u p p t t r r e e l l e e a a s s e e o o f f s s y y s s t t e e m m c c h h a a r r g g e e a a n n d d m m a a y y r r e e s s u u l l t t i i n n... -
Page 16: Communicating
Electrical — Low Voltage Non Communicating Table 20. Low Voltage Maximum Wire Length Low Voltage Hook-up Diagrams With TEM 3, 4, 6, 8 With TAM 4, 5, 7, 9 Outdoor Outdoor Thermostat Air Handler Thermostat Air Handler Unit Unit 24 VAC HOT 24 VAC HOT 24 VAC 24 VAC... -
Page 17: Electrical - High Voltage
E E l l e e c c t t r r i i c c a a l l — — L L o o w w V V o o l l t t a a g g e e N N o o n n C C o o m m m m u u n n i i c c a a t t i i n n g g Electrical —... -
Page 18: System Start Up
E E l l e e c c t t r r i i c c a a l l — — L L o o w w V V o o l l t t a a g g e e N N o o n n C C o o m m m m u u n n i i c c a a t t i i n n g g System Start Up DONE CANCEL... -
Page 19: Subcooling Charging In Cooling Between 55° F And 120° Od
Subcooling Charging in Cooling between 55° F and 120° OD Ambient Trane has always recommended installing Trane 4. Measure Liquid Line Temperature and Refrigerant approved matched indoor and outdoor systems. Pressure at service valves. 5. Determine total refrigerant line length, and height The benefits of installing approved indoor and outdoor (lift) if indoor section is above the condenser. -
Page 20: System Charge Adjustment
System Charge Adjustment Table 24. Temperature Measurements (Systems can be rated with TXV, EEV or Piston. Ensure charging method is correct). 120° F 55° F 80° F 70° F Table 25. Subcooling Charging Corrections LIFT 18-BC99D1-1D-EN... -
Page 21: Refrigerant Charging Chart
Refrigerant Charging Chart 18-BC99D1-1D-EN... -
Page 22: Subcool Charging Charts
Subcool Charging Charts Figure 1. 1.5 Ton Models Figure 5. 3.5 Ton Models SUBCOOL CHARGING CHART CORRECTIONS TABLE (FOR LINE LENGTH AND RISE) SUBCOOL CHARGING CHART CORRECTIONS TABLE (FOR LINE LENGTH AND RISE) Add 4° Add 1° 4° Add 1° Add 1°... -
Page 23: Charging The Unit
Charging the Unit Table 26. Stabilize the system 20 MIN. Table 27. Proper Gage Pressure 107 °F Table 28. Verify Performance PRESSURE CURVE SAMPLE Cooling @ 1450 SCFM Heating @ 1350 SCFM INDOOR ENTERING INDOOR ENTERING WET BULB CURVES DRY BULB CURVES TOP TO BOTTOM TOP TO BOTTOM 71, 67, 63 AND 59 DEG F. - Page 24 C C h h a a r r g g i i n n g g t t h h e e U U n n i i t t Table 29. Proper Gage Pressure 107 °F Table 30. System Information 18-BC99D1-1D-EN...
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Page 25: Checkout Procedures
Checkout Procedures 18-BC99D1-1D-EN... -
Page 26: Troubleshooting
Troubleshooting Compressor fails to start Contactor check Is contactor engergized? Go To: Compressor won’t run (contacts closed) Wait 3 minutes and check contactor Check for 24 volts AC coil again across contactor coil Is voltage If applicable, is TDR present at input voltage Replace contactor contactor coil? -
Page 27: Troubleshooting
T T r r o o u u b b l l e e s s h h o o o o t t i i n n g g Troubleshooting Does a resistance check show an open circuit between R and S? 18-BC99D1-1D-EN... - Page 28 ® , Thermo King ® Trane ® — work together to enhance the quality and comfort of air in homes and buildings; transport and protect food and perishables; and increase industrial productivity and efficiency. We are a global business committed to a world of sustainable progress and enduring results.
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