Trane R410a Installer Manual

service to air conditioning, ventilation and heating equipment could be dangerous and therefore requires proper knowledge and specific training. The equipment installed inappropriately, or adjusted or altered by untrained personnel, could result in death or severe injuries. While working on this equipment, adhere to all indications of precaution contained in the literature, the tas, and other identification marks adhered to the equipment. Split System (R-410A) Inverter Units 18 SEER 36,000 BTU/Hr - 60 Hz September 13, 2018 MS-SVN055B-EN Installer’s Manual Indoor Unit Outdoor Unit Cooling only 4MYW8536A1 4TYK8536A1 Heat pump 4MXW8536A1 4TXK8536A1

2 MS-SVN055B-EN Warnings and cautions Warnings and Cautions. Notice that warnings and cautions appear at appropriate intervals throughout this manual. Warnings are provided to alert installing contractors to potential hazards that could result in personal injury or death, while cautions are designed to alert personnel to conditions that could result in equipment damage. Your personal safety and the proper operation of this machine depend upon the strict observance of these precautions. Attention: Warnings and Cautions appear at appropriate sections throughout this literature. Read these carefully. WARNING: Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury. CAUTION: Indicates a potentially hazardous situation which, if not avoided, could result in minor or moderate injury. It may also be used to alert against unsafe practices. NOTICE: Indicates a situation that could result in equipment or property-damage only accidents. Trane has always recommended installing Trane approved matched indoor and outdoor systems. The benefits of installing approved matched systems are maximum efficiency, optimum performance and best overall system reliability. WARNING This equipment is to be serviced by professionally trained personnel ONLY. Under NO circumstances should an unqualified person service it. This equipment contains refrigerant under PRESSURE and operates at HIGH OLTAGE. Improperly installed, adjusted or altered equipment by an unqualified person poses safety hazards including FIRE, ELECTROCUTION, or EXPLOSION, which could result in death or serious injury. WARNING Electrocution and Fire Hazards with Improperly Installed and Grounded Field Wiring! Improperly installed and grounded field wiring poses FIRE & ELECTROCUTION hazards. To avoid these hazards, you MUST follow requirements for field wiring installation and grounding as described in the National Electrical Codes (NEC) and your local/state electrical codes. All field wiring MUST be performed by qualified personnel. Failure to follow these requirements could result in death or serious injury. WARNING R410A Refrigerant under Higher Pressure than R22! The units described in this manual use R410A 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" tube to allow for charging of liquid refrigerant into the system. For specific handling concerns with R-410A, please contact your local Trane representative. Failure to use R-410A approved service equipment could result in standard equipment exploding under R-410A higher pressure which could result in death or serious injury. NOTICE Use PVE Oil with R-410A Mini-Split Units! All R-410A mini-splits use a PVE oil (Polyvinyl Ether Oil) that readily absorbs moisture from the atmosphere. To limit this “hygroscopic” action, the system should remain sealed whenever possible. If a system has been open to the atmosphere for more than 4 hours, the compressor oil must be replaced. Never break a vacuum with air and always change the driers when opening the system for component replacement. For specific handling concerns with PVE oil, contact your local Trane representative. USE ONLY THE FACTORY RECOMMENDED - DAFNE HERMETIC OIL FV50S - for servicing these units. Important! Environmental Concerns Scientific research has shown that certain man-made chemicals can affect the earth’s naturally occurring stratospheric ozone layer when released to the atmosphere. In particular, several of the identified chemicals that may affect the ozone layer are refrigerants that contain Chlorine, Fluorine and Carbon (CFCs) and those containing Hydrogen, Chlorine, Fluorine and Carbon (HCFCs). Not all refrigerants containing these compounds have the same potential impact to the environment. Trane advocates the responsible handling of all refrigerants—including industry replacements for CFCs such as HCFCs and HFCs.

MS-SVN055B-EN 3 Responsible Refrigerant Practices Trane believes that responsible refrigerant practices are important to the environment, our customers, and the air conditioning industry. All technicians who handle refrigerants must be certified. The Federal Clean Air Act (Section 608) sets forth the requirements for handling, reclaiming, recovering and recycling of certain refrigerants and the equipment that is used in these service procedures. In addition, some states or municipalities may have additional requirements that must also be adhered to for responsible management of refrigerants. Know the applicable laws and follow them.

Accessories.......................................................................................................................... 6 Typical installation.................................................................................................................8 Installation location...............................................................................................................8 – Indoor Unit.............................................................................................................................8 – Outdoor Unit..........................................................................................................................8 Installation..........................................................................................................................................8 – Indoor Unit installation........................................................................................................9 – Installing Outdoor Unit.......................................................................................................11 – Vacuum Pump and Leak Inspection...................................................................................15 – Outdoor condensation drainage (heat pump type only)..................................................15 Check after Installation and Test Operation...........................................................................16 Connection Pipe...................................................................................................................17 Wiring diagrams...................................................................................................................18 – High efficiency 60 models...................................................................................................12

mounted split system models 4MY8 and 4TYK8; 4MXW8 and 4TXK8. However, it does not contain all the service procedures for this unit, as these procedures must be performed by a qualified service technician through the maintenance contract with a reputable service company. Read these operation instructions thoroughly before installing the unit. Warranty Warranty is based on the general terms and conditions by country. The warranty is void if the equipment is modified or repaired without the written approval of The Trane Company, if the operating limits are exceeded or if the control system or the electrical wiring is modified. Damage due to inappropriate installation, lack of knowledge or failure to comply with the manufacturer’s instructions, is not covered by the warranty obligation. If the installation does not conform to the rules described in Installation Manual, it may entail cancellation of warranty and liabilities by The Trane Company. Reception On arrival, inspect the unit before signing the delivery note. Specify any damage of the unit on the delivery note, and send a registered letter of protest to the last carrier of the goods within 72 hours of delivery. Notify the dealer at the same time. The unit should be totally inspected within 7 days of delivery. If any concealed damage is discovered, send a registered letter of protest to the carrier within 7 days of delivery and notify the local dealer. About the Unit These units are assembled, pressure tested, dehydrated, charged and run tested before shipment. This manual contains information related to 4MYW8 and 4TYK8; 4MXW8 and 4TXK8. Refrigerant The refrigerant provided by the manufacturer comply with all the requirements for our units. When using a recycled or reprocessed refrigerant, we recommend its qualities be as good as those of a new refrigerant. It is necessary to have the refrigerant tested by a qualified laboratory. Failure to do so could void the warranty. Important These instructions do not cover all variations in systems, nor do they provide for every possible contingency to be met in connection with installation. Should further information be desired or should particular problems arise which are not covered sufficiently in this manual, the matter should be referred to your authorized Trane dealer.

Space to the wall At least 5 7/8 inch At least 98 7/16 inch At least 5 7/8 inch At least 5 7/8 inch Space to the wall Minimum clearance Space to the floor Minimum clearance Drain pipe Space to the wall Minimum clearance Minimum clearance Minimum clearance At least 19 11/16 inch At least 11 7/8 inch At least 19 11/16 inch At least 11 7/8 inch At least 78 3/4 inch At least 118 inch

adequate structural support could result in unit falling from its location which could result in death, serious injury, or equipment or property-only damage. 1. The air inlet and outlet should be far away from anything that could prevent the air from reaching all parts of the room. 2. Select a location where it is easy to drain the condensing water and connect to the outdoor unit. 3. Keep the indoor unit far away from heat sources, vapor and inflammable gas. 4. Be sure that the installation of the indoor unit conforms to the installation dimension diagram. 5. Be sure to leave enough space to allow access for routine maintenance; clearance between the indoor unit and the floor should be more than 7 feet. 6. Install in a location where the unit is more than 3 feet away from other electric appliances such as television, audio devices etc. 7. Select location where air filters can be easily removed. Outdoor Unit WARNING Adequate Support! Wall structure must be adequate to support the weight of the unit. Failure to ensure adequate structural support could result in unit falling from its location which could result in death, serious injury, or equipment or property-only damage. 1. Select a location from which noise and air discharge by unit will not annoy neighbors. 2. Select a location where there is sufficient ventilation. 3. Make sure the air inlet and outlet are not blocked by any obstacles. 4. Select a location capable of supporting the weight and vibration of the outdoor unit, and where installation work can be carried out safely. 5. Select a location away from flammable gas or gas leaks. 6. Make sure that the installation of the outdoor unit conforms to the installation dimension diagram. NOTICE • Installing the unit in one of the following locations could result in unit malfunction: • Places where oil (machine oil) is used • Seaside/places with high level of salt in the air. • Places with high level of sulfur gas such as areas with hot springs. • Places where high-frequency waves are generated by radio equipment, welders and medical equipment. • Other unusual places where unit operation may be altered.

WARNING Hazardous Service Procedures! The maintenance and troubleshooting procedures recommended in this section of the manual could result in exposure to electrical, mechanical or other potential safety hazards. Always refer to the safety warnings provided throughout this manual concerning these procedures. When possible, disconnect all electrical power including remote disconnect and discharge all energy storing devices such as capacitors before servicing. Follow proper lockout/tagout procedures to ensure the power can not be inadvertently energized. When necessary to work with live electrical components, have a qualified licensed electrician or other individual who has been trained in handling live electrical components perform these tasks. Failure to follow all of the recommended safety warnings provided, could result in death or serious injury. Mounting Location 1. Always mount the rear panel horizontally. 2. Fix the rear panel on the selected location 3. Be sure that the rear panel has been fixed firmly enough to withstand the weight of an adult of 140 lbs. Furthermore, the weight should be evenly shared by each screw. Figure 3. Panel installation Drilling a hole in the wall to install the piping Piping can be connected in six different locations on the unit as shown as follows: Figure 4. Direction of piping 1. Drill a 65mm diameter hole in the wall at a slight downward angle toward the outdoor side in such a way that the end of the pipe outside is 5 mm lower than the inside. 2. Insert a sleeve into the hole to prevent the connection piping and wiring from being damaged when passing through the hole. Left downward Left Rear Left Right Downward Rear Right Right

not straight and uniform, this could result in water leaking from condensation, resulting in property damage. NOTICE If a wall sleeve is not mounted in the wall, the wiring between the indoor unit and the outdoor unit can possibly be damaged resulting in electrical current loss in the ground wiring. Installing the water drain pipe NOTICE Do not wrench or bend the drain hose and make sure the ends of the drain pipe are not under water. Failure to do so could result in leakage. 1. To ensure proper water drainage, the drain hose should be placed at a downward slant. 2. The water drain pipe must be insulated throughout the house. Figure 6. Drain pipe Installing the unit Note: The piping can be lead out from right, right rear, left, left rear. 1. When routing the piping and wiring from the left or right side of indoor unit, cut off the cutouts from the chassis if necessary. (1).Remove cutout 1 when routing the wiring only; (2).Remove cutouts 1 and 2 when routing both the wiring and piping.(or 1,2,3). Figure 7. Chasis cutouts Indoor Outdoor Wall sleeve Seal pad Wrenched Bent Under water Cutout 1 Cutout 2 Cutout 3

through the wall perforation for this purpose. Figure 8. Piping and wiring bundle 4. Hang the mounting slots of the indoor unit on the upper tabs of the rear panel and verify that it is secure enough. Figure 9. Mounting on wall Installing the connection pipe 1. Align the center of the piping flare with the relevant valve. Figure 10. Connector piping 2. Screw in the flare nut by hand and then tighten the nut with the spanner and the torque wrench. Refer to the following torque table. Connection wiring Gas side piping Liquid side piping Insulation gas side piping Insulation liquid side piping Wrap bundle with tape Water drain pipe Left Left rear Right Right reat Fixing hook Mounting board Mounting board Indoor unit piping Spanner Torque wrench Piping Taper nut

Note: First connect the connection pipe to the indoor unit and then to the outdoor unit. Pay attention to avoid bending the pipe. Do not tighten the joint excessively otherwise it could lead to leaking. Wiring connection between indoor and outdoor units 1. Open the front panel of the indoor unit by lifting upward. 2. Unscrew and remove the cover panel. 3. Pull the power connection cable through the back of the indoor unit. 4. Firmly attach the power connection cables to the terminal block in the indoor unit, making certain to observe the proper terminal connections as shown on the unit wiring diagram. 5. Reattach the cover panel with the proper screws. 6. The electric wire must be fixed with a wire clip. Ensure that the signal control wire is connected to the terminal board with a wire clip. Wiring the outdoor unit 1. Disassemble the handle of the right side panel or front panel of the outdoor unit. 2. Remove the wire clamp, connect and attach the power wiring cable to the terminal block. Wiring should match that of the indoor unit. 3. Using a clamp, attach the power wiring cable for the cooling and heating unit. Then use a wiring clamp to attach the signal control wire. Finally connect the corresponding connector. 4. Ensure that all wiring has been firmly connected. 5. Reinstall the handle of the right side panel or the front panel to the outdoor unit. Note: l ncorrect wiring may cause the malfunction of the unit’s components. Hex nut diameter Tightening torque (N-m) 6mm - 1/4” 15-20 9.5mm - 3/8" 31-35 12mm - 1/2" 50-55 16mm - 5/8" 60-65 WARNING Hazardous Voltage! Disconnect all electric power, including remote disconnects before servicing. Follow proper lockout/tagout procedures to ensure the power cannot be inadvertently energized. Failure to disconnect power before servicing could result in death or serious injury. WARNING Hazardous Voltage! Disconnect all electric power, including remote disconnects before servicing. Follow proper lockout/tagout procedures to ensure the power cannot be inadvertently energized. Failure to disconnect power before servicing could result in death or serious injury.

After the installation of refrigerant lines to both the outdoor and indoor units are completed, the flare connections must be checked for leaks. Pressurize through the service valve ports, the indoor unit and field refrigerant lines with dry nitrogen to 350-400 psi. Use soap bubbles or other leak checking methods to see that all flares are leak-free! If not, release pressure; then repair! System evacuation Note: Inasmuch as the outdoor unit has a refrigerant charge, the gas and liquid line valves must remain closed. 1. Upon completion of leak check, evacuate the refrigerant lines and indoor coil before opening the gas and liquid line valves. 2. Attach appropriate hoses from manifold gauge to gas and liquid line pressure taps. 3. Attach center hose of manifold gauge to vacuum pump. 4. Evacuate until the micron gauge reads no higher than 350 microns. 5. Close off valve to vacuum pump and observe the micron gauge. If gauge pressure rises above 500 microns in one (1) minute, then evacuation is incomplete or system has a leak. 6. If vacuum gauge does not rise above 500 microns in one (1) minute, the evacuation should be complete. 7. Blank off vacuum pump and micron gauge, close valves on manifold gauge set. Note: DO NOT VENT REFRIGERANT INTO THE ATMOSPHERE. 8. The liquid line shut-off valve can now be opened. Remove shut-off-valve cap. Fully insert hex wrench into the stem and backout counterclockwise open. WARNING Danger of Explosion! Never use an open flame to detect gas leaks. Explosive conditions may occur. Use a leat test solution or other approved methods for leak testing. Failure to follow recommended safe leak test procedures could result in death or serious injury or equipment or property-only damage. WARNING Danger of Explosion! Use only dry nitrogen with a pressure regulator for pressurizing unit. Do not use acetylene, oxigen or compressed air or mixtures containing these for pressure testing. Do not use mixtures of a hydrogen containing refrigerant and air above atmospheric pressure for pressure testing, as they may become flammable and could result in an explosion. Refrigerant, when used as a trace gas, should only be mixed with dry nitrogen for pressurizing units. Failure to follow these recommendations could result in death or serious injury or equipment or property-only damage.

9. The gas valve can now be opened. Open the gas valve by removing the shut-off valve cap and turning the valve stem 1/4 turn counterclockwise using 1/4” Open End or Adjustable wrench. 10. The gas valve is now open for refrigerant flow. If refrigerant lines are longer than fifteen feet (8 m), it will be necessary to adjust system refrigerant charge upon completion of installation. Condensing water drain (heat pump only) When the unit is heating, the condensing water and defrosting water can be drained reliably through the drain hose. Install the drain kit in a 25mm hole on the base plate; connect the drain hose to the kit to allow the condensing water to be drained out to a proper place. Figure 12. Drain kit kit

Installation verification and operation test Before test operation 1. Do not switch on power before installation is finished completely. 2. Electric wiring must be connected correctly and securely. 3. Shut-off valves corresponding to connection pipes should be opened. 4. All impurities and debris must be cleared from the unit. Test operation method 1. Switch power ON, press “ON/OFF button on the wireless remote control to start the operation. 2. Press MODE button, select COOL, HEAT, FAN to check whether the operation of the unit is normal or not. Items to check: Possible problems: Has the indoor unit been firmly installed? The unit may drop, shake o emit noise Have a refrigerant leak test been performed? It may cause insufficient cooling/heating capacity Is heat insulation sufficient? It may cause condensation and leaking Does water drain properly? It may cause condensation and leaking Is voltage according to the rated voltage marked on the unit’s nameplate? It may cause electric malfunction or damages to the unit Is the electric wiring and piping connection installed properly and securely? It may cause electric malfunction or damages to the unit Has the unit been connected to a secure earth connection? It may cause electric leakage Is the power cord damaged? It may cause electric malfunction or damages to the unit Has the inlet and outlet been covered? It may cause insufficient cooling/heating capacity Has the length of connection piping and refrigerant capacity been recorded? The refrigerant capacity is not accurate

Connecting Pipe- 60 Hz 18 SEER 60Hz (Cooling only and Heat Pump) 4MYW8536A1 4TYK8536A1 4MXW8536A1 4TXK8536A1 Refrigerant charge (kg) R410A/2.60 Length (m) 7.6 Additional gas charge (g/m) 30 Outer diameter Liquid pipe (mm) φ6 (1/4”) Gas pipe (mm) φ16 (5/8”) Maximum distance Height (m) 20 Length (m) 40

4MYW8536A1 - (Indoor unit cooling only) 4MXW8536A1 - (Indoor unit heat pump) WARNING Hazardous Voltage! Disconnect all electric power, including remote disconnects before servicing. Follow proper lockout/tagout procedures to ensure the power cannot be inadvertently energized. Failure to disconnect power before servicing could result in death or serious injury. WARNING Electrocution Hazard! Aññ wiring installed and directed to ground connection represent dangers of FIRE and ELECTROCUTION. In order to prevent said dangers apply all requirements for wiring installation and grounding as described by NEC or by the local and state electric codes. All field wiring MUST be carried out by qualified technicians. Failure to follow these recommendations could result in death or serious injury.

4TXK8536A1 (outdoor unit heat pump)

leader in creating and sustaining safe, comfortable and energy efficient environments, Trane offers a broad portfolio of advanced controls and HVAC systems, comprehensive building services and parts. For more information visít www.Trane.com. Trane has a policy of continuous product and product data improvement and reserves the right to change design and specifications without notice.. We are committed to using environmentally conscious print practices that reduce waste. © 2018 Trane All rights reserved MS-SVN055B-EN September 13, 2018 Substitutes: MS-SVN055A-EN July 15, 2016