Related Manuals for Trane 22 Series
Summary of Contents for Trane 22 Series
- Page 1 Installer's Guide Split System (R-410A) 22 Series Multi-Zone Inverter System 18,000 Btu/h to 42,000 Btu/h Model : 4TXM2218A12N 4TXM2221A13N 4TXM2224A14N 4TXM2230A15N 4TXM2236A15N 4TXM2242A15N June 2020 MS-SVN049F-EN...
- Page 2 Warnings and Cautions Warnings are provided to alert others of the potential hazards that could result in severe personal injury or death, while cautions are designed to alert others of the conditions that could result in minor or moderate injury. Your personal safety and the proper operation of this machine depend upon the strict observance of these precautions.
- Page 3 Warnings and Cautions WARNING R410-A Refrigerant under Higher Pressure than R-22! The units described in this manual use R410-A refrigerant which operates at 50 to 70% higher pressures than R-22. Use only R-410A approved service equipment. Refrigerant cylinders are painted with "pink" color to indicate the type of refrigerant and may contain a "dip"...
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Page 4: Table Of Contents
Contents Safety Precautions ....................5 Pre-Installation Checklist ..................6 Product Introduction .....................7 Combinations for Outdoor and Indoor Units ............7 Operating Ranges ....................9 Preparation for Installation ..................10 Selecting the Installation Location ..............10 Connection Pipe Requirement ................11 Refrigerant Piping Precautions ................12 Installing the Outdoor Unit ..................13 Condensate Management of the Outdoor Unit ...........13 Installing the Refrigerant Piping ................14 Flaring Process and Bending Pipes ..............14... -
Page 5: Safety Precautions
22 Series Multi-Zone Safety Precautions Your personal safety and the proper operation of this equipment depend upon the strict observance of these precautions. This mark indicates a potentially hazardous situation which, if not avoided, WARNING could result in death or serious injury. -
Page 6: Pre-Installation Checklist
22 Series Multi-Zone 12. If a system pump-down is performed, turn off the associated equipment and close service valves prior to removing the refrigerant piping. Failure to do so will introduce non-condensables in the system, causing abnormal pressure in the refrigeration cycle which could lead to injury and damage. -
Page 7: Product Introduction
22 Series Multi-Zone Product Introduction The 22 Series Multi-split system utilizes inverter compressor technology, which enables the outdoor unit to send refrigerant to multiple indoor units of varying capacities. It is critical, however, that heat loss and heat gain calculations be performed to properly size the multi-split system. - Page 8 22 Series Multi-Zone 22 SEER Ductless Multi-Zone Approved Combinations Indoor Unit Combinations with Associated Nominal Capacity (kBTUH) # of Outdoor Unit Two Indoor Units Ports 4TXM2218A12N0 9+12 12+12 18,000 BTUH Outdoor Unit Two Indoor Units Three Indoor Units 9+18 12+12...
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Page 9: Operating Ranges
22 Series Multi-Zone Combinations for Outdoor and Indoor Units Some of the 22 SEER multi-split outdoor units are able to support up to five indoor units. The figure below illustrates that a mixture of indoor types may be used on a single 4TXM22 multi port system, provided the combination is approved. -
Page 10: Preparation For Installation
22 Series Multi-Zone Preparation for Installation Selecting the Installation Location Outdoor Unit WARNING 1. Install the unit on a level surface or on supports that are level. 2. If the location is subject to strong winds, the additional force must be accounted for and the unit must be fixed securely to the base. -
Page 11: Connection Pipe Requirement
22 Series Multi-Zone Connection Pipe Requirement NOTICE The maximum distance of the connection piping in both height and total length is provided in the table below. Do not install these units in locations that exceed these specifications. Max height Connecting Pipe inch(mm) -
Page 12: Refrigerant Piping Precautions
22 Series Multi-Zone Refrigerant Piping Precautions WARNING Hazard of Explosion and Deadly Gases! Failure to follow all proper safe refrigerant handling practices could result in death or serious injury. Never solder, braze or weld on refrigerant pipes or any unit components that are above atmospheric pressure or where refrigerant may be present. -
Page 13: Installing The Outdoor Unit
22 Series Multi-Zone Installing the Outdoor Unit WARNING 1. Install the unit on a level surface or on supports that are level. 2. If the location is subject to strong winds, the additional force must be accounted for and the unit must be fixed securely to the base. Refer to local codes for additional requirements. -
Page 14: Installing The Refrigerant Piping
22 Series Multi-Zone 4. Place the outdoor unit on the support base. 5. Secure the foot holes of the outdoor unit with bolts (shown below). Foot holes Foot holes Installing the Refrigerant Piping Flaring Process 1. Hold the pipe downward to prevent cuttings from entering the pipe. -
Page 15: Insulating The Refrigerant Piping And Connections
22 Series Multi-Zone 4. Do not bend the pipe while insulated. First, cut the insulation with a sharp cutting tool and expose it to the appropriate bend radius, as shown below. After bending the pipe, replace the insulation and seal it with pipe wrap tape. -
Page 16: Refrigerant Piping At The Outdoor Unit
22 Series Multi-Zone Refrigerant Piping at the Indoor Units Reference the Indoor Unit Installation Guide Refrigerant Piping at the Outdoor Unit Tighten the flare nut of the connection pipe at the outdoor unit valve connector. Follow the flare nut guidelines in this manual. -
Page 17: Piping Requirements
22 Series Multi-Zone Piping Requirements If the outdoor unit is installed lower than the indoor unit: 1. A drain pipe should be above ground and the end of the pipe should not dip into water. 2. Taping pipes must be done from bottom to top. Do not wrap too tightly to avoid compression of the insulation, otherwise its effectiveness is reduced. -
Page 18: Refrigerant Piping Between The Indoor And Outdoor Units
22 Series Multi-Zone Refrigerant Piping Between the Indoor and Outdoor Units All indoor units are individually connected to ports at the outdoor unit. (As shown below) • If any refrigerant ports are not connected to indoor units, please tighten the cap to seal off the port. - Page 19 22 Series Multi-Zone Outdoor unit Equivalent length of the longest connection L Indoor unit Indoor unit...
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Page 20: Vacuum And Refrigerant Leakage Detection
22 Series Multi-Zone Vacuum and Refrigerant Leakage Detection NOTICE Do not purge the air with refrigerant. Use a vacuum pump to vacuum the installation! 1. When connecting refrigerant pipe to the unit or removing it from the unit, please use both a back-up wrench and the torque wrench. -
Page 21: Wiring Precautions
22 Series Multi-Zone Wiring Precautions WARNING 1. Before obtaining access to terminals, all supply circuits must be disconnected. 2. Improperly installed and grounded field wiring poses fire and electrocution hazards. For high voltage connections, flexible electrical conduit is recommended whenever vibration transmission may create a noise problem within the structure. -
Page 22: Stranded Wiring Connections
22 Series Multi-Zone Stranded Wiring Connections Cut the wire end with a wire cutter or wire cutting pliers, then strip the insulation about 3/8" (10mm). 1. Using a screwdriver, remove the terminal screw(s) on the terminal board. 2. Using a round terminal fastener or pliers, securely clamp a round terminal to each stripped wire end. -
Page 23: Electrical Connections
22 Series Multi-Zone Electrical Connections CAUTION Improper operation may lead to personal injury or property damage. Size the power supply wiring according to the NEC, local code and the MCA indicated on the unit nameplate. Electrical Requirements Models Power Supply... -
Page 24: Power Supply Wiring
22 Series Multi-Zone Power Supply Wiring 1. Open the side covering plate. 2. Connect the power wiring to the terminals "L1", "L2" and also to the grounding bolt, and then connect the wiring terminals "N(1), 2, 3" of the indoor unit to those of the outdoor unit correspondingly. -
Page 25: Post Installation Checklist
22 Series Multi-Zone Post Installation Checklist Check the following points before testing the unit: Item to be checked Possible problem Have the indoor and outdoor units been The units may fall, vibrate or make noise. securely installed? Has the refrigerant leak test been... -
Page 26: Refrigerant System Diagrams
22 Series Multi-Zone Refrigerant System Diagram 18K, 21K & 24K Units outdoor indoor filter A heat exchanger filter outdoor heat exchanger 4-way valve B heat exchanger filter high pressure switch Note: Not available for 18K model discharge silencer C heat exchanger... - Page 27 22 Series Multi-Zone Refrigerant System Diagram 30K, 36K & 42K Units Heat Exchanger Eutectic Stopper Filter Four-way Valve Silencer High Pressure Swicth Outdoor Uint Compressor Gas/Liquid Separator Electronic Expansion Valve Heating Cooling Indoor Uint Heat Exchanger Heat Exchanger Heat Exchanger...
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Page 28: Electrical Connections At The Outdoor Unit
22 Series Multi-Zone Electrical Connections at Outdoor Unit For all models, terminals N(1) and 3 are for power; terminal 2 is for communication. It is recommended to use a different wire color for each terminal connection in order to reduce the risk of miswiring. - Page 29 22 Series Multi-Zone Wiring Diagrams Color Key Symbol Symbol Color Symbol Symbol Color Symbol Name White Green COMP Compressor o l l Blue YE/GN Yellow/Green Black Violet Orange Note: A "Jumper Cap" may be used to determine fan speed and the swing angle of horizontal louver for this model.
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Page 30: Wiring Diagrams
22 Series Multi-Zone Wiring Diagrams 21 K Units 24 K Units... - Page 31 22 Series Multi-Zone Wiring Diagrams 30-42 K Units θ θ θ θ θ θ θ θ θ θ θ θ θ θ NOTE: The wiring diagrams in this guide are included as a reference. The manufacturer has a policy of continuous product and product data improvement and reserves the right to change design and specifications without notice.
- Page 32 22 Series Multi-Zone Outline and Dimensions of the Outdoor Unit 18K Unit 35.1(892) 13.4(341) 15.6(396) 38(965) 22(559) The dimensions in these drawings are rounded according to standard measurement. Unit: inch(mm) 21K Units 13.4(341) 35.1(892) 17.3(440) 38.6(979) 22(559) The dimensions in these drawings are rounded according to standard measurement.
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Page 33: Dimensional Diagrams
22 Series Multi-Zone Outline and Dimensions of the Outdoor Unit 24K Unit 3.3(85) 38.4(976) 24.0(610) 6.1(15.5 The dimensions in these drawings are rounded according to standard measurement. in.(mm) 30-42K Units 3.6(91) 42.5(1080) 24.8(631) 7.5(191) The dimensions in these drawings are rounded according to standard measurement. -
Page 34: Troubleshooting
22 Series Multi-Zone Troubleshooting WARNING Improper operation may lead to personal injury or casualty. • Turn off the main power switch immediately if a malfunction is detected. Contact the installing dealer or qualified service technician. If the unit continues to run during a malfunction, the unit may be damaged or electric shock or fire may occur. -
Page 35: Error Codes
22 Series Multi-Zone Error Codes The error code will be displayed on the wired controller and the main board of the outdoor unit. The meaning of each error is as shown in the table below. The Indicator Display Indoor Error/Malfunction... - Page 36 22 Series Multi-Zone Indoor The indicator Display Display Name of malfunction Yellow light Red light Green light Liquid pipe temperature sensor Flash 21 times malfunction of C Gas pipe temperature sensor Flash 22 times malfunction of C Liquid pipe temperature sensor...
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Page 37: Maintenance
22 Series Multi-Zone General Maintenance Regular checks, maintenance and care should be performed by professional personnel, which will prolong the unit life span. Outdoor Heat Exchanger The outdoor heat exchanger should be checked and cleaned once every two months. Use a vacuum cleaner with a nylon brush to clean up dust and debris on the surface of the heat exchanger. - Page 38 About Trane and American Standard Heating and Air Conditioning Trane and American Standard create comfortable, energy efficient indoor environments for residential applications. For more information, please visit www.trane.com or www.americanstandardair.com CONFORMS TO ULSTD.1995 CERTIFIED TO CSASTD.C22.2 N0.236 3097844 The AHRI Certified mark indicates company participation in the AHRI Certification program. For verification of individual certified products, go to ahridirectory.org.