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Installer's Guide
Variable Speed ComfortLink™ ™ II
Heat Pumps and Air Conditioners
4TWV0024A1000A
4TWV0036A1000A
4TWV0048A1000A
4TWV0060A1000A
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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.
October 2014
4TTV0024A1000A
4TTV0036B1000A
4TTV0048A1000A
4TTV0060A1000A
4TTV0061A1000A
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
18-BC89D1-1D-EN
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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Related Manuals for Trane 4TWV0024A1000A
Summary of Contents for Trane 4TWV0024A1000A
- Page 1 Installer’s Guide Variable Speed ComfortLink™ ™ II Heat Pumps and Air Conditioners 4TWV0024A1000A 4TTV0024A1000A 4TWV0036A1000A 4TTV0036B1000A 4TWV0048A1000A 4TTV0048A1000A 4TWV0060A1000A 4TTV0060A1000A 4TTV0061A1000A N N o o t t e e : : “Graphics in this document are for representation only. Actual model may differ in appearance. ”...
- Page 2 E E a a r r t t h h c c o o n n n n e e c c t t i i o o n n e e s s s s e e n n t t i i a a l l b b e e f f o o r r e e c c o o n n n n e e c c t t i i n n g g e e l l e e c c t t r r i i c c a a l l s s u u p p p p l l y y . . 18-BC89D1-1D-EN ©2014 Trane...
- Page 3 IVSC Board Note: See AHRI directory for approved indoor and outdoor model combinations. Only Trane coils and air handlers are approved for use with variable speed outdoor units. Table 1. Operating Range Cooling 55° F to 120° F Heating -10°...
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Page 4: Table Of Contents
Table of Contents Unit Location Considerations ....5 Electrical — High Voltage ....18 . -
Page 5: Unit Location Considerations
Unit Location Considerations Table 2. Unit Dimensions and Weight H x D x W (in) Weight * (lb) Models 4TWV0024A 48 x 30 x 33 4TWV0036A 50 x 34 x 37 4TWV0048A 50 x 34 x 37 4TWV0060A 54 x 34 x 37 4TTV0024A 48 x 30 x 33 4TTV0036B... - Page 6 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 4.
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Page 7: Coastal 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 Table 6. -
Page 8: Unit Preparation
Unit Preparation 1. Check for damage and report promptly to the carrier any damage found to the unit. 2. To remove the unit from the pallet, remove tabs by cutting with a sharp tool. Setting Up the Unit Table 7. Pad Installation When installing the unit on a support pad, such as a concrete slab, consider the following: •... -
Page 9: Refrigerant Line Considerations
Refrigerant Line Considerations Table 8. Required Refrigerant Line Length Determine required line length and lift. You will need this to determine the subcooling charging corrections later in the installation process. Total Line Length = ___________________________Ft. Total Vertical Change (lift) = ____________________Ft. Table 9. - Page 10 R R e e f f r r i i g g e e r r a a n n t t L L i i n n e e 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 R R e e f f r r i i g g e e r r a a n n t t L L i i n n e e 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
Refrigerant Line Brazing Table 15. Braze the Refrigerant Lines Remove caps or plugs. Use a deburring tool to debur the pipe ends. Clean both internal and external surfaces of the tubing using an emery cloth. Remove the pressure tap cap and valve core from each service valves. - Page 13 R R e e f f r r i i g g e e r r a a n n t t L L i i n n e e B B r r a a z z i i n n g g Table 15.
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Page 14: Refrigerant Line Leak Check
Refrigerant Line Leak Check Table 16. Check for Leaks 150 PSIG Pressurize the refrigerant lines and evaporator coil to 150 PSIG using dry nitrogen. Check for leaks by using a soapy solution at each brazed location. Note: Remove nitrogen pressure and repair any leaks before continuing. -
Page 15: Charging: Weigh-In Method
Charging: Weigh-In Method Weigh-In Method can be used for the initial installation, or anytime a system charge is being replaced. Weigh-In Method can also be used when power is not available to the equipment site or operating conditions (indoor/outdoor temperatures) are not in range to verify with the subcooling charging method. -
Page 16: Service Valves
Service Valves Table 21. Open the Gas Service Valve 1/4 Turn Only Important: Leak check and evacuation must be completed before opening the service valves. Counterclockwise Note: Do not vent refrigerant gases into the atmosphere. for Full Open Position Remove valve stem cap. Using a wrench, turn valve stem 1/4 turn counterclockwise to the fully open position. -
Page 17: Electrical - Low Voltage
Electrical — Low Voltage Table 23, p. 17defines the size and combined total maximum length of low voltage wiring from the outdoor unit, to the indoor unit, and to the thermostat. Note: The use of color coded low voltage wire is recommended to simplify connections between the outdoor unit, the control, and the indoor unit. -
Page 18: Electrical - High Voltage
Electrical — High Voltage Table 25. High Voltage Power Supply W W A A R R N N I I N N G G L L I I V V E E E E L L E E C C T T R R I I C C A A L L C C O O M M P P O O N N E E N N T T 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 c c o o u u l l d d r r e e s s u u l l t t i i n n p p r r o o p p e e r r t t y y d d a a m m a a g g e e , , s s e e v v e e r r e e p p e e r r s s o o n n a a l l i i n n j j u u r r y y , , o o r r d d e e a a t t h h . -
Page 19: Integrated Variable Speed Control Board
Integrated Variable Speed Control Board LED Indicators Th e S t a tu s (Gre e n ) a n d High COMM (Am b e r) LEDs a re Voltage EXT.ODT to Condensor lo ca te d in t h e u p p e r rig h t LSOV COMM (not used) -
Page 20: Start Up
Start Up Ensure you have completed the following sections. ”Refrigerant Line Brazing,” p. 12 through ”Electrical — High Voltage,” p. 18 Set System Thermostat to OFF. Turn on disconnect(s) to apply power to the indoor and outdoor units. Wait 3 hours before starting the unit if the outdoor ambient temperature is below 85°... -
Page 21: System Charge Adjustment
System Charge Adjustment Table 28. Temperature Measurements Check the outdoor temperatures. 120° F Subcooling using “Charging Mode-Cooling” is the only recommended method of charging between 55 ° F and 120° F ambient outdoor temperature. 55° F For best results the indoor temperature should be kept between 70° F to 80°... -
Page 22: Subcool Charging Correction Charts
Subcool Charging Correction Charts Figure 2. Subcool Charging Corrections — 2.0 Ton Figure 4. Subcool Charging Corrections — 4.0 Ton TON SUBCOOL CHARGING CHART CORRECTIONS TABLE (FOR LINE LENGTH AND RISE) TON SUBCOOL CHARGING CHART CORRECTIONS TABLE (FOR LINE LENGTH AND RISE) Add 1°... -
Page 23: Charging The Unit
Charging the Unit Table 30. Proper Gage Pressure Using the ”Refrigerant Charging Chart”, p. 22adjust refrigerant level to attain proper gage pressure. Add refrigerant if the Liquid Gage Pressure is lower than the chart value. Connect gauges to refrigerant bottle and unit as illustrated. Purge all hoses. - 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 33. System Information Record system pressures and temperatures after charging is complete.
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Page 25: Communicating Display Assembly
Communicating Display Assembly (CDA) NAVIGATION • To e n te r a n d e xit Te ch n icia n Me n u s , p re s s th e Up /Do w n b u tto n s s im u lta n e o u s ly fo r 5 s e co n d s . -
Page 26: Defrost Control (Heat Pump Only)
Defrost Control (Heat Pump only) D D e e m m a a n n d d D D e e f f r r o o s s t t C C D D A A N N a a v v i i g g a a t t i i o o n n t t o o F F o o r r c c e e d d D D e e f f r r o o s s t t The demand defrost control measures heat pump Figure 6. -
Page 27: Checkout Procedures
Checkout Procedures The final phase of the installation is the system Checkout Procedures. The following list represents the most common items covered in a Checkout Procedure. Confirm all requirements in this document have been met. All wiring connections are tight and properly secured. Supply registers and return grilles are open, unobstructed, and air filter is installed. - Page 28 Trane offers a broad portfolio of advanced controls and HVAC systems, comprehensive building services, and parts. For more information, visit www.Trane.com. Trane has a policy of continuous product and product data improvements and reserves the right to change design and specifications without notice. ©2014 Trane...