Trane Mini-4-Way Cassette-Indoor Installation and Maintenance Manual
Contents
1. 1 87 47 5 22 64 575 1 87 47 5 a 1181800 w 1 87 47 5 22 64 575 1 87 47 5 7 87 200 HH ft E H H ME Dam Fr APS S a la D i v AE q ES Asetek EKE Xx NX E Se ilc Y N S iste D E E JL A a F mE eos 2 ne EE RR T1 LJ ui irs IA 6 5 165 9 8 249 10 6 269 Sub duct connection 11 8 300 Net dimension 22 64 x 8 94 x 22 64 575 x 250 x 575 Net weight 24 46 Ib 12 0 kg Liquid pipe connection 1 4 6 35 Gas pipe connection 1 2 12 70 Drain hose connection OD 1 25 32 ID 0 98 25 VRF SVX28A EN Preparing for Installation Service Clearances z Nie GE N attin I a o EAM N x M Ten a x A bee I i 0 67 17 S rats wy bad E Ass E 0 79 20 i S j a AH RR Ls Um o A Wr ss w ien kn Ausser AA Obstruction 8 VRF SVX28A EN Installation Installation Review Installation Considerations before proceeding with installation Follow the procedures in these sections in the order given Note Install the Y joint before installing the indoor unit Mounting the Unit If the ceiling is already constructed piping must be laid into position before placing th2. 3 Attach the yoke to the flaring bar centering the conical part over the end of the pipe that is extending above the flaring bar 4 Tighten the yoke securely to flare the end of the pipe Flaring bar Copper pipe Flare nut 5 Remove the pipe The end of the pipe that you flared should look like the end of a trumpet See examples of correctly and incorrectly flared pipes Correct Inclined Damaged Cracked Uneven surface thickness 6 Align the pipes and tighten the flare nuts manually and then with a spanner torque wrench applying the torque according to pipe dimensions Flare Outer diameter Connection dimension in mm torque ft lb in Flare shape in 1 4 6 35 10 3 13 3 ft lb 0 34 0 36 3 8 9 52 25 1 31 0 ft lb 0 50 0 52 R 016 031 1 2 12 70 36 1 45 0 ft lb 0 64 0 65 ipe 5 8 15 88 50 2 60 5 ft lb 0 76 0 78 12 VRF SVX28A EN Installation Leak Testing Pipe Connections VRF SVX28A EN A WARNING Confined Space Hazards Do not work in confined spaces where refrigerant or other hazardous toxic or flammable gas may be leaking Refrigerant or other gases could displace available oxygen to breathe causing possible asphyxiation or other serious health risks Some gases may be flammable and or explosive If a leak in such spaces is detected evacuate the area immediately and contact the proper rescue or response authority Failure to take appropriate prec
3. Note Minimum compressor off time for heating or cooling is set by digit 9 26 VRF SVX28A EN Configuration Mode A Addressing VRF SVX28A EN When digit 2 is set to a value of A unit address settings can be changed See Figure 7 Figure 8 and Table 3 The indoor unit is factory configured for auto addressing mode The factory default address is 0A0000 100000 200000 300000 If the default address is manually changed the auto addressing mode is no longer active If the address has been manually changed and the installer wants to restore auto addressing mode all indoor units in the system must be returned to the initial factory default address Figure 7 Address setting mode digit 2 A Digits 2 6 Figure 8 Addressing mode for remote control Digits 9 12 OAXXXX LX XK te Ye e hes z com bl Et Li LI Dii D12 27 Configuration Table 3 Address setting mode Digit 2 A Display screen on Digit Mode and 9 On Off Option Set digit to 1 Factory set to 0 Cannot be changed Not seen in configuration mode 2 Addressing mode A 3 Unit RMC address 0 Automatic address setting default 1 Manual address setting Cool ri 4 Hundreds digit of address Address My 4 Cool m 5 Tens digit of address Address Li 6 Ones digit of address Address Mode d Specific Digit Changing When digit 2 is set to a value o
4. Installation Operation and Maintenance Variable Refrigerant Flow System Mini 4 Way Cassette Indoor Unit Series Models 4TVB0009B100NB 4TVB0012B100NB 4TVB0018B100NB 4TVB0020B100NB SAFETY WARNING 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 VRF SVX28A EN February 2013 Introduction Read this manual thoroughly before operating or servicing this unit Warnings Cautions and Notices Safety advisories appear throughout this manual as required Your personal safety and the proper operation of this machine depend upon the strict observance of these precautions The three types of advisories are defined as follows Indicates a potentially hazardous AWARNING situation which if not avoided could result in death or serious injury Indicates a potentially hazardous ACAUTION situation which if not avoided could result in minor or moderate injury It could also be used to alert against unsafe practices NOTICE Indicates a situation that could result in equipment or p
5. VRF Wired Remote Control VRF Enterprise Management Software VRF Auto Commissioning Tool VRF System Controller Note Indoor unit options are configured at the factory changes are not required for typical installations Using the VRF Wireless Remote Control To change configurations of the VRF system using the VRF Wireless Remote Control follow this procedure 20 1 Remove the batteries from the remote control and re insert them while pressing the Temp and Temp buttons simultaneously refer to Figure 3 The first 2 digit segment of a 24 digit sequence will appear on the wireless remote control display as shown To advance to the next 2 digit segment press the Mode button Figure 3 Continue pressing the Mode button until the two digit segment appears that corresponds to the option setting or address setting you want to view or change Each 2 digit segment is differentiated from the others by a combination of operation mode Auto Cool Dry and ON OFF icons as shown below See The 2 Digit Segments for more detailed information Ceat 2o o oo E ip i Digits 6 and 8 and so on Digits 2 and 3 Digits 4 and 5 5 through digits 23 and 24 Note Digits 1 7 13 and 19 do not appear and are not used for configuration To change the value of the left digit on the display press the Fan down button To change the value of the right digit on the display press the Fan up bu
6. 1 On Off control to 2 Off only control VRF SVX28A EN 29 Configuration Table 4 Specific digit changing mode Digit 2 d Display screen Mode Digit and On Off Option Set digit to 1 Factory set to 0 Cannot be changed Not seen in configuration mode 2 Specific digit changing mode d Auto The desired setting mode 1 2 5 or A i 1 3 Configuration setting mode see Figure 5 Cool ipd n f 4 Value that represents position such as 0 if it is the 9th cu 4 Position of digit in 24 digit sequence Tens digit digit in the sequence Cool T en PE 4 Value that represents position such as 9 if it is the 9th 1 5 Position of digit in 24 digit sequence Ones digit digit in sequence Dry w 6 Setting value Appropriate value for operation function or address 30 VRF SVX28A EN Operation Operation Familiarize yourself with the unit components and operating tips before operating the unit Components Air flow blade Y Air intake NA Air filter under grill Display Se Defrost indicator Filter reset indicator On Off operation indicator Timer indicator Remote control sensor Note Your unit and display may look slightly different from the illustration shown above depending on your model Operating Tips Follow these tips when using your unit If the outside temperature is much higher than the selected indoor temper
7. All field wiring MUST be performed by qualified personnel Improperly installed and grounded field wiring poses FIRE and ELECTROCUTION hazards To avoid these hazards you MUST follow requirements for field wiring installation and grounding as described in NEC and your local state electrical codes AWARNING Personal Protective Equipment PPE Required Failure to wear proper PPE for the job being undertaken could result in death or serious injury Technicians in order to protect themselves from potential electrical mechanical and chemical hazards MUST follow precautions in this manual and on the tags stickers and labels as well as the instructions below e Before installing servicing this unit technicians MUST put on all PPE recommended for the work being undertaken ALWAYS refer to appropriate MSDS sheets and OSHA guidelines for proper PPE e When working with or around hazardous chemicals ALWAYS refer to the appropriate MSDS sheets and OSHA guidelines for information on allowable personal exposure levels proper respiratory protection and handling recommendations e If there is a risk of arc or flash technicians MUST put on all PPE in accordance with NFPA 70E or other country specific requirements for arc flash protection PRIOR to servicing the unit Copyright This document and the information in it are the property of Trane and may not be used or reproduced in whole or in part without the
8. Master N A 13 Factory set to 2 Cannot be changed Not seen in configuration mode VRF SVX28A EN 23 Configuration Table 1 Option setting mode Digit 2 2 2 Display screen ced Digit mode and 9 On Off Option description Set digit to 0 Disabled m 14 External control 1 On Off control Grut 2 Off only control Auto rm 15 External control output QE Energie control Li 1 User controlled input Cool m 16 S plasma ion 2 Disabled cal 1 Enabled Cool m 17 Buzzer E enabled Li 1 Disabled Dry 2 1000 r1 18 Filter timer hours of use omit 6 2000 N A 19 Factory set to 3 Cannot be changed Not seen in configuration mode Dy 0 1 Channel 1 20 Associating wireless remote 2 Channel 2 u control with indoor unit s 3 Channel 3 4 Channel 4 B 0 Disabled r 21 Heat setting compensation 1 3 6 F 2 C amu 2 9 F 5 C 22 EEV step of stopped unit 0 EEV step is minimum during oil return defrost mode 1 Oil return or reduce noise in defrost mode 0 Disabled 1 Disabled in 30 minutes if no motion is detected 2 Disabled in 60 minutes if no motion is detected 3 Disabled in 120 minutes if no motion is detected 23 Motion detection sensor 4 Disabled in 180 minutes if no motion is detected 5 Disabled in 30 minutes if no motion is detected and advanced function 6 Disabled in 60 minutes if no motion is detected and advanced function 7 Disabled in 120
9. a well ventilated area Note Drying the air filter in a confined or humid area may cause odors to develop If odors occur re clean and dry it in a well ventilated area 5 Replace the air filter in its original position The air filter will click when it is in the proper position 6 After cleaning the air filter press the Filter Reset button on the remote control for 2 seconds to reset the filter schedule The filter indicator lights when it is time the clean the filter again 7 Replace the grill by reversing the first three steps Note Ifthe angle on the air flow blades changed from opening the grill turn the circuit breaker off and on again to restore the blades to their proper angle Periodic Maintenance Checks Refer to the schedule given in Table 5 for proper unit maintenance VRF SVX28A EN 33 34 Operation Note If the unit will not be used for an extended period of time operate it in Fan mode for 3 4 hours to thoroughly dry it and then disconnect the power plug Moisture left in the components can cause odors and internal damage Table 5 Maintenance schedule Description Monthly Every 4 months Once a year As needed Clean the air filter X Clean the condensate drain pan b Thoroughly clean the heat exchanger b Clean the condensate drain pipe Replace remote control batteries 2 a The described operations should be performed more frequently if the area of
10. erosion deterioration modifications made by others to the Equipment repairs or alterations by a party other than Company that adversely affects the stability or reliability of the Equipment vandalism neglect accident adverse weather or environmental conditions abuse or improper use improper installation commissioning by a party other than Company unusual physical or electrical or mechanical stress operation with any accessory equipment or part not specifically approved by Company refrigerant not supplied by Company and or lack of proper maintenance as recommended by Company Company shall not be obligated to pay for the cost of lost refrigerant or lost product Company s obligations and liabilities under this Warranty are limited to furnishing replacement equipment or parts at its option FCA Incoterms 2000 factory or warehouse f o b factory or warehouse for US domestic purposes at Company designated shipping point freight allowed to Company s warranty agent s stock location for all non conforming Company manufactured Equipment which have been returned by Customer to Company Returns must have prior written approval by Company and are subject to restocking charge where applicable Equipment material and or parts that are not manufactured by Company are not warranted by Company and have such warranties as may be extended by the respective manufacturer COMPANY MAKES NO REPRESENTATION OR WARRANTY EXPRESS OR IMPLIED REGARDING PREVENTI
11. for leak detection and use oil pumped dry nitrogen to develop required test pressures Close liquid line angle valve 2 Connect R 410A refrigerant cylinder to high side charging port at condenser or field supplied discharge line access port Add refrigerant to reach pressure of 12 to 15 psig 3 Disconnect refrigerant cylinder Connect dry nitrogen cylinder to high side charging port and increase pressure to 150 psig Do not exceed high side discharge unit nameplate design pressure Do not subject low side suction components to high side pressure 4 Check all piping joints valves etc for leaks Recommend using electronic detector capable of measuring 0 1 oz year leak rate 5 Ifa leak is located use proper procedures to remove the refrigerant nitrogen mixture break connections and make repairs Retest for leaks 6 Make sure all service valves are open Installation Installing the Drain System 1 Push the supplied drain hose as far as possible over the drain hose port e Do not apply excessive force to the piping on the unit side when connecting the drain hose Drain hose port locations differ depending on the unit type Drain hose Drain hose port 2 Wrap the insulation supplied around the drain hose and clamp the connection as tightly as possible until you can see at least 8 holes Insulation 3 Install the drain pipe into the drain hose Secure it with PVC adhe
12. on the remote control to turn the unit off Then switch the circuit break off and then on again 35 Troubleshooting If an error occurs one of more of the LEDs on the display see Components for their location will flicker As a protection strategy the unit stops operating and the LED turns off If the unit is turned on before the problem is resolved the LED will resume flickering and the unit will stop operating again Table 7 Diagnostic LEDs for the mini 4 way cassette indoor unit continued LED display Alarm condition abe Power Defrost Timer Filter Bie EN p Indoor temperature sensor error shorted or open E121 off Flickering off Off Evap in sensor error shorted or open E122 Evap out sensor error shorted or open E123 Flickering Flickering Off Off Discharge sensor error shorted or open E126 Indoor fan error E154 Off Off Flickering Off Outdoor temperature sensor error shorted or open E221 Condenser sensor error shorted or open E237 Flickering Off Flickering Off Discharge sensor error E251 No communication between indoor and outdoor units for 2 minutes E101 Communication error received from outdoor unit E102 3 minute tracking error on outdoor unit E202 Communication error after tracking due to non matching quantity of E201 off Flickering Flickering off installed indoor units Error due to repeated communication address
13. 3 5 C Cooling deadband 5 Note Applies only when digit 3 is set to 1 auto changeover mode is enabled Disabled 0 9 F 0 5 C 1 8 F 1 C 2 7 F 1 5 C 3 6 F 2 C 4 5 F 2 5 C 5 4 F 3 C 6 3 F 3 5 C Standard for auto changeover heating to cooling 6 Note Applies only when digit 3 is set to 1 auto changeover mode is enabled 1 8 F 1 C 2 7 F 1 5 C 3 6 F 2 C 4 5 F 2 5 C 5 4 F 3 C 6 3 F 3 5 C 7 2 F 4 C 8 1 F 4 5 C NOUBWNFOINDUBWNFOINODUBWNEF O 7 Factory set to 1 Cannot be changed Not seen in configuration mode Standard for auto changeover cooling to heating 8 Note Applies only when digit 3 is set to 1 auto changeover mode is enabled 1 8 F 1 C 2 7 F 1 5 C 3 6 F 2 C 4 5 F 2 5 C 5 4 F 3 C 6 3 F 3 5 C 7 2 F 4 C 8 1 F 4 5 C NOUBWNEF OO VRF SVX28A EN 25 Configuration Table 2 Option setting mode Digit 2 2 5 Display screen cosi Digit mode and 9 On Off Option description Set digit to 0 5 minutes 1 7 minutes T ired f de ch 2 9 minutes ime regure or mo a ange T 3 11 minutes Note Applies only when digit 3 is set to 1 auto 4 13 minutes changeover mode is enabled 5 15 minutes 6 20 minutes 7 30 minutes 0 Use default value Compensation option for height or pip
14. Communication i ese tepa perm ie A hh nr 18 Electronic Expansion Valve EEV Kit anne 18 Electrical Conduit Installation oee 18 Configuration oee voce ti bh vaer heeht dankt ote wek ce nak EROR Ee 20 Using the VRF Wireless Remote Control 00000 0 cee eee eae 20 The 2 Digit Segments neee 22 Configuration Modes 0 000 cee ees 22 Mode 2 Option Setting eenen eens 23 Mode 5 Option Setting eenen 25 Mode A Addressing enne 27 Mode d Specific Digit Changing llle 28 OPSration EEn 31 Components nee 31 Operating TIDS ss rep UC E GR RCNH EE OUS 31 Internal Protections 0 cece ee teen hn 32 VRF SVX28A EN 3 Operating Ranges nennen 32 Operating Mode for Heat Pump Systems nennen 32 Cleaning the Exterior eee eee 32 Cleaning the Grill and Air Filter eneen 32 Periodic Maintenance Checks neen 33 Troubleshooting nt tee qria ns derde ER E ERG Ree leh te eee 35 Warranty For Trane Advantage VRF Systems and Related Accessories 38 Basic Warranty nertsen en mengen el KR Peqdesifu eru e iuc Meu ect 38 Exclusions and Limitations neen 38 vaneen ternet ROSE CUN E SIS 39 VRF SVX28A EN Model Number Description 14 VRF SVX28A EN Digit 1 Refrigerant 4 RA10A Digit 2 Brand name T Trane Digit 3 System type V Variable Refrigerant Flow Digit 4 Configuration Type also see separate tab B mini 4 way cass
15. E108 Communication address not confirmed E109 Error due to opened EEV 2nd detection E151 Error due to closed EEV 2nd detection E152 Evap in sensor is loose E128 Off Flickering Flickering Flickering Evap out sensor is loose E129 Thermal switch error open E198 36 VRF SVX28A EN Table 7 Diagnostic LEDs for the mini 4 way cassette indoor unit Troubleshooting LED display Alarm condition ud Power Defrost Timer Filter code Bir A hy TA Gy O o E Condenser mid sensor is loose E241 Refrigerant leakage 2nd detection E554 Abnormally high temperature on condenser 2nd detection E450 Low pressure switch 2nd detection E451 Abnormally high discharge air temperature on outdoor unit 2nd E416 detection Indoor unit operation stopped due to unconfirmed error on outdoor unit E559 Reverse phase detection error E425 Compressor operation stop due to freeze detection 6th detection E403 z Off Flickering Flickering Flickering High pressure sensor is loose E301 Low pressure sensor is loose E306 Outdoor unit compression ratio error E428 Outdoor sump down 1 prevention control E413 Compressor operation stopped due to low pressure sensor prevention E410 control Simultaneous opening of cooling heating MCU solenoid valve 1st E180 detection Simultaneous opening of cooling heating MCU solenoid valve 2nd E181 detection Float switc
16. ON OF MOLD MOULD FUNGUS BACTERIA MICROBIAL GROWTH OR ANY OTHER CONTAMINATES No warranty liability whatsoever shall attach to Company until Customer s complete order has been paid for in full and Company s liability under this Warranty shall be limited to the purchase price of the Equipment shown to be defective EXCEPT FOR COMPANY S WARRANTY EXPRESSLY SET FORTH HEREIN COMPANY DOES NOT MAKE AND HEREBY EXPRESSLY DISCLAIMS ANY WARRANTIES EXPRESS OR IMPLIED CONCERNING ITS PRODUCTS EQUIPMENT OR SERVICES INCLUDING WITHOUT LIMITATION ANY WARRANTY OF DESIGN MERCHANTABILITY OR OF FITNESS FOR A PARTICULAR PURPOSE OR OTHERS THAT ARE ALLEGED TO ARISE FROM COURSE OF DEALING OR TRADE Additional warranty protection is available on an extra cost basis and must be in writing and agreed to by an authorized signatory of the Company Additional terms and conditions of warranty coverage are applicable for refrigeration equipment If you wish further help or information concerning this warranty contact Trane Warrantor 2701 Wilma Rudolph Blvd Clarksville TN 37040 VRF SVX28A EN VRF SVX28A EN 39 The manufacturer optimizes the performance of homes and buildings around the world A business of Ingersoll Rand the leader in creating and sustaining safe comfortable and energy efficient environments the manufacturer offers a broad portfolio of advanced controls and HVAC systems comprehensive building services and parts For more information vis
17. ature it may take longer than expected to achieve the desired temperature Cooling Avoid making extreme changes in the temperature setting This practice wastes energy and does not cool the room faster Because the unit heats the room by removing heat energy from outdoor air the Heating heating capacity may decrease when outdoor temperatures are extremely low If the unit provides insufficient heat use an additional heating source in combination with the unit When the unit runs in Heat mode frost may form due to the temperature difference between the unit and the outside air If this happens e The unit stops heating Defrost e The unit will operate automatically in Defrost mode for 10 minutes The steam produced on the outdoor unit in Defrost mode is safe No intervention is required after about 10 minutes the unit will resume normal operation The unit will not operate when it starts to defrost Fan The fan may not operate for 3 5 minutes after turning on the unit to prevents cold air from blowing on occupants while the unit is warming up If both indoor and outdoor temperatures are high and the unit is running in Heat mode the outdoor unit fan and compressor may stop at times This is normal wait until the unit turns on again High indoor and outdoor temperatures A power failure will cause the unit to stop operating When power returns the unit Power failure will automatically resume operation I
18. autions or to react properly to such potential hazards could result in death or serious injury A WARNING Explosion Hazard Never use an open flame to detect gas leaks It could result in an explosion Use a leak test solution for leak testing Failure to follow recommended safe leak test procedures could result in death or serious injury or equipment or property only damage Use only dry nitrogen with a pressure regulator for pressurizing unit Do not use acetylene oxygen or compressed air or mixtures containing them 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 Do not exceed unit nameplate design pressures when leak testing system Failure to follow these instructions could result in an explosion causing death or serious injury Notes e All required piping pressure tests must be completed in accordance with national and or local codes When leak testing refrigerant systems observe all safety precautions Leak test only one circuit at a time to minimize system exposure to potentially harmful moisture in the air Use R 410A refrigerant gas as a tracer
19. de Remote control is not for a cooling only unit That the unit has not been installed in direct sunlight If so hang curtains or shades on windows to filter the sun and increase unit efficiency The fan speed does not change Verify that Auto or Dry mode is selected Either of these modes automatically adjust the fan speed Timer function does not work Press the Power button on the remote control after setting the time Odors permeate the room during operation Verify the origin of the odor Operate the unit in Fan mode or open the windows to air out the room The unit makes a bubbling sound A bubbling sound may be heard When the refrigerant is circulating through the compressor By the drain pump inside the unit when you press the Power button Water is dripping from the air flow blades If the unit has been running for an extended period of time with the blades fully open adjust the blades to mid position to alleviate condensation formation The remote control is not working Verify that Batteries are not depleted Batteries are correctly installed Nothing is blocking the remote control sensor No strong fluorescent or neon lighting is near the unit which may interrupt the signal The unit does not turn on off with the wired remote control Ensure that the wired remote control is not set for Group Control Indicators on the digital display flash Press the Power button
20. e length difference du Hen when height or pipe length difference is as 10 specified in Note 1 between indoor units i 2 Use when height or pipe length difference is as specified in Note 2 Notes 1 Height difference between the indoor unit being configured and the lowest indoor unit is gt 98 4 ft 30 m or pipe length difference between the outdoor unit and the furthest indoor unit and the outdoor unit and the indoor unit being configured is gt 360 9 ft 110 m 2 Height difference between the indoor unit being configured and the lowest indoor unit is 49 2 98 4 ft 15 30 m or pipe length difference between the outdoor unit and the furthest indoor unit and the outdoor unit and the indoor unit being configured is 164 360 9 ft 50 110 m Example If the unit being configured is 60 ft away from the outdoor unit and the furthest in door unit is 300 ft from the outdoor unit the pipe length difference is 240 ft 300 60 240 so Digit 10 should be set to 2 Figure 6 Heat recovery unit operating in auto changeover mode Cooling Off Cooling On Heating Off Heating On Standard temp for Temp Heating E Cooling 4 Standard temp for Cooling Ts o eee Set temp for Auto mode Standard temp for Heating T77 7 7 v Standard temp A Set with digit 4 for Cooling B Set with digit 5 Heating C Set with digit 6 D Set with digit 8
21. e unit inside the ceiling A CAUTION Avoid equipment damage and personal injury Ensure that the ceiling is strong enough to support the weight of the indoor unit Before hanging the unit test the strength of each of the attached suspension bolts To mount the unit 1 Place the template on the spot where the unit is to be installed and mark the holes Note Thetemplate may shrink or stretch slightly due to heat or humidity Before drilling holes verify proper dimensions between the marks Refer to Installing the Front Panel for final finishing clearances 2 Determine the appropriate type of suspension bolts and anchors according to the ceiling type Insert bolt anchors into existing ceiling supports A or construct a suitable support B A B Concrete Drill hole for 7 et Pre poured anchor anchor Ceiling support Field supplied suspension bolts M10 or 3 8 in Isolator Bracket 3 Install suspension bolts at all four locations Screw two nuts to each suspension bolt leaving space between the nuts for hanging the unit Note If the suspension bolts are longer than 59 in 1 5 m or vibrations are a concern place isolators on the brackets to absorb vibrations Hang the unit by its support brackets between the two nuts If pad stoppers or isolators are used to absorb vibrations place them on the brackets VRF SVX28A EN 9 Installation 7 Tighten the nuts to suspend the unit follo
22. ecting the pipes make sure they are free of dirt and debris e Use insulated unwelded degreased and deoxidized copper pipe Cu DHP type according to ISO 1337 or UNI EN 12735 1 suitable for an operating pressure of at least 609 15 psi 4200 kPa and a burst pressure of at least 3002 28 psi 20 700 kPa Copper pipe for hydro sanitary applications is unsuitable e For sizing and limits height difference line length maximum bends refrigerant charge and so on see the outdoor unit installation manual e All refrigerant connections must be accessible for servicing and maintenance Pipe Cutting Required tools e Pipe cutter e Reamer e Pipe holder 1 Using a pipe cutter cut the pipe so that the cut edge is at 90 to the side of the pipe 2 Use a reamer to remove all burrs at the cut edge See examples of correctly and incorrectly cut pipes Correct 902 SR Flared Pipe Connections Clutch type and wing nut type flare tools are available for flared pipe connections 1 Slide the flare nut over the pipe to be flared 2 Slide the end of the pipe into the hole on the flaring bar that fits the pipe leaving a length of pipe determined by tool type see table extending above the flaring bar Clamp it down Length of pipe extending above flare bar Flaring bar Pipe 11 Installation Conventional flare tool Clutch type Wing nut type 0 0 020 in 0 04 0 06 in 0 06 0 08 in R 410A clutch type
23. em Tightening torque for M4 screws 0 86 1 06 Ibf ft 12 0 14 7 kgf cm e After making a knockout hole apply rust preventive paint to the bare metal around the hole e Secure the cable conduit to the outdoor knockout using the proper connector and bushing Connect the power cable to terminals 1 L and 2 N on each indoor unit Refer to wiring diagram If installing a wired remote control connect the communication cable to terminals F3 and F4 Refer to Figure 1 Electronic Expansion Valve EEV Kit EEV kits are required for high wall and convertible units Refer to the Figure 1 Electrical Conduit Installation 18 A conduit bracket must be installed to secure the conduit as illustrated in Figure 2 VRF SVX28A EN Wiring the Unit Figure 1 Wiring diagram Outdoor unit F1 F2 208 230 V F2 EEV kit Indoor unit 1 Indoor unit 2 Indoor unit 3 Indoor unit 5 Indoor unit 6 Indoor unit 4 Figure 2 Conduit bracket installation Single conduit Two conduits VRF SVX28A EN 19 Configuration Configuration All VRF indoor units are factory configured If modifications are required one of the following control devices can be used VRF Wireless Remote Control instructions follow
24. er Main air vent Individual 4273 air vent 22 in 550 mm or less Centralized horizontal drain pipe more Ceiling than 1 100 slope ain drain pipe Testing the Drainage After completing the installation test the drainage to make sure there are no leaks 1 Operate the unit in cool mode 2 Remove drain pump cover 3 Squirt water into the drain pan see figure 4 Confirm that the water flows out through the drain hose and that no leakage occurs at any of the connections 5 Reassemble the drain pump cover 16 VRF SVX28A EN Insulation Insulation After determining that there are no leaks in the refrigerant pipes or drainage hose insulate them as described in these sections Refrigerant Pipes 1 Use the table below to select the insulation type for each pipe size Insulation Type Standard conditions High humidity conditions 2 Pipe size 86 F 30 C 85 86 F 30 C over 85 Pipe in mm EPDM or NBR 1 4 6 35 3 8 9 52 3 8 9 3 8 9 Liquid pipe 1 2 12 70 2 50 80 1 2 13 1 2 13 1 4 6 35 1 2 13 3 4 19 3 8 9 52 1 25 40 1 0 25 Gas pipe b 3 4 19 1 1 8 28 58 1 3 4 44 45 1 1 4 32 2 50 80 1 0 25 1 1 2 38 a When installing insulation in any of the following environments use insulation required for high humidity conditions Buildings with close proximity to bodies of water or hot
25. ette C 4 way cassette D MSP duct type mid pressure E 1 way cassette Digit 5 Reserved for future use 0 Not currently used L Slim duct type low pressure A HSP duct type high pressure X Ceiling W High wall Digit 6 7 8 Nominal capacity Btu h x 1 000 006 6 000 Btu h 020 20 000 Btu h 060 60 000 Btu h 007 7 000 Btu h 024 24 000 Btu h 068 68 000 Btu h 009 9 000 Btu h 030 30 000 Btu h 076 76 000 Btu h 012 12 000 Btu h 036 36 000 Btu h 096 96 000 Btu h 018 18 000 Btu h 048 48 000 Btu h Digit 9 Major development sequence B Second development sequence Digit 10 Electric power supply characteristics 1 220 60 1 B 220 240 50 1 Digit 11 Reserved for future use 0 Not currently used Digit 12 Controller 0 2 None R Remote control standard W Wired control standard Digit 13 Region of sale N North America UL or ETL Digit 14 Minor design sequence A First design sequence B Second design sequence Preparing for Installation Preparing for Installation Accessories In addition to product literature the following accessories are supplied with this unit The type and quantity may differ depending on the model Flexible hose Template Insulation A Insulation B Insulation C clamp Flexible hose Cable tie Conduit bracket NE CID Location Considerations When deciding on a location for the indo
26. f d a single specific digit can be changed See Figures 9 11 and Table 4 This mode can be used as a shortcut when only a single digit needs to be changed Figure 9 Specific digit changing mode Odxoxxx Auto vov D2 D3 The example in Figure 10 shows how to use this mode to change the external control option setting from On Off control to Off only control For the details on this option see Table 1 28 VRF SVX28A EN Configuration Figure 10 Example of using the specific digit changing mode to change an option setting 21xxxx 3XXXXX 0d2149 Looxx 2XXXXX 3XXXXX Digit 2 is set to d the specific digit setting mode Digit 3 is set to 2 the option setting mode refer to Mode 2 Option Setting Digits 4 and 5 are set to 14 the position of the digit for external control refer to Table 1 Digit 6 is changed from 1 On Off control to 2 Off only control refer to Table 1 The example in Figure 11 shows how to use this mode to change a unit address from 137 to 134 Figure 11 Example of using the specific digit changing mode to change a unit address 0A1137 1xxxxx 2XXXXX 3XXXXX OdA064 1xxxxx 2xxxxx 3XXXXX e Digit 2 is set to d the specific digit setting mode Digit 3 is set to A the addressing mode Digits 4 and 5 are set to 06 because the 6th digit 7 is the digit that is to be changed Digit 6 is changed from
27. f the unit has just been turned on it will not produce cool warm air for 3 minutes Minimum Off Timer This delay mechanism protects the outdoor unit compressor VRF SVX28A EN 31 Operation Internal Protections Internal protections operate if an internal fault occurs in the unit Type Description Cold air dump The internal fan will be off to prevent a cold air dump when the heat pump is in defrost mode Defrost cycle The internal fan will be off to prevent a cold air dump when the heat pump is in defrost mode The compressor observes a 3 minute off time when cycling power to the unit or after an Anti short cycle timer outage Note If the heat pump is operating in Heat mode a defrost cycle is activated to remove frost from an outdoor unit that may have accumulated at low temperatures The internal fan is switched off automatically and restarted only after the defrost cycle is completed Operating Ranges For efficient use operate the unit within the ranges shown in this table Mode Outdoor temperature Indoor temperature Indoor humidity Cooling 23 F 5 C to 118 F 48 C 64 F 18 C to 90 F 32 C 80 or less Heating 4 F 20 C to 75 F 24 C 81 F 27 C or less Drying 23 F 5 C to 118 F 48 C 64 F 18 C to 90 F 32 C Note The standardized temperature for heating is 45 F 7 C If the outdoor temperature drops to 32 F 0 C or bel
28. h 2nd detection E153 off Off Flickering Flickering EEPROM error E162 Flickering Flickering Flickering Flickering EEPROM option error E163 Flickering Flickering Flickering Flickering Incompatible indoor unit error E164 Flickering Flickering Off Flickering VRF SVX28A EN 37 Warranty For Trane Advantage VRF Systems and Related Accessories Warranty For Trane Advantage VRF Systems and Related Accessories Products Covered This warranty is extended by Trane and applies to all Trane Advantage VRF systems and accessories for these products which are sold by Trane and applied in accordance with Trane specifications Basic Warranty The warrantor warrants for a period of 12 months from the initial start up or 18 months from date of shipment whichever is less against failure due to defects in material and manufacture and that it has the capacities and ratings set forth in Company s catalogs and bulletins Warranty If the following conditions are met the warrantor extends this basic warranty period to five 5 years from date of start up e The system is designed using an approved application tool VRF Select e The system is installed by a contractor who has successfully completed a Trane factory training class e A verified commissioning report from the Trane VRF Commissioning Tool is submitted Exclusions and Limitations 38 Exclusions from this Warranty include damage or failure arising from wear and tear corrosion
29. igit 2 shown in red in Figure 4 is used to set the configuration mode The four modes are shown in Figure 5 Figure 5 The four configuration modes Auto Auto Auto Auto GD LL rt l L l E NE Mode 2 Option setting Mode 5 Option setting Mode A Addressing Mode d Specific digit changing 22 VRF SVX28A EN Configuration Mode 2 Option Setting When digit 2 is set to a value of 2 the options shown in Table 1 can be set to the values in the right column Table 1 Option setting mode Digit 2 2 Display screen p Digit mode and 9 On Off Option description Set digit to N A 1 Factory set to 0 Cannot be changed Not seen in configuration mode Auto mf 2 Option setting mode 2 Li Auto i 0 Disabled n 3 Robot cleaning 1 Enabled _ Cool 0 Disabled oof 1 4 Remote sensor 1 Enabled Cool 0 Disabled n 5 Central control 1 Enabled Dry 0 Disabled w 5 RPN Mp 1 Enabled N A 7 Factory set to 1 Cannot be changed Not seen in configuration mode 0 Disabled m 8 Drain pump 1 Enabled no delay ee 2 Enabled 3 min delay Fan En 0 Disabled ef 9 Hot water heater 1 Enabled Fan MITES 0 Disabled n 10 Electronic heater 1 Enabled Heat Fini 11 EEV position when heating is 0 EEV step is minimum default as satisfied 1 Reduced noise setting cw Heat 12 Master Slave unit 0 Slave u designation b 1
30. installation is very dusty b These operations must always be performed by qualified personnel For more detailed information see the installation manual for this unit VRF SVX28A EN VRF SVX28A EN Troubleshooting Troubleshooting Refer to Table 6 for solutions to common problems and to Table 7 for a list of alarm conditions with corresponding error codes and LED behavior Table 6 Solutions to common problems Problem Solution The unit does not operate immediately after restarting it The anti short cycle timer prevents the unit from operating immediately to keep it from overloading The unit will start in 3 minutes The unit does not operate Verify the following The power plug is properly inserted into the wall receptacle There has not been a power failure The circuit breaker is switched on fuses are good The temperature does not change Verify that the unit is not operating in Fan mode If it is select a different mode The unit is not producing warm Cool air Verify the following Temperature setting on remote control is higher lower than the current temperature Air filter is not clogged with dirt If the unit has just been turned on wait 3 minutes for the anti short cycle timer to expire Air flow is unobstructed Line size and length is correct and does not exceed factory recommendations Operating mode is heat cool If unit is not producing warm air is it set to Cool mo
31. it www IRCO com The manufacturer has a policy of continuous product and product data improvement and reserves the right to change design and specifications without notice 2013 Trane All rights reserved VRF SVX28A EN 01 Feb 2013 We are committed to using environmentally IR II R d New conscious print practices that reduce waste ngerso an
32. minutes if no motion is detected and advanced function 8 Disabled in 180 minutes if no motion is detected and advanced function 24 N A a Cassette type indoor units are set to Enabled 3 minute delay regardless of digit 8 setting b For heat pump systems the master indoor unit controls whether the system operates in heating or cooling If the master indoor unit calls for heating and slave indoor units calls for cooling the master indoor unit and any other slave indoor units that call for heating will operate in heating mode The slave indoor units that call for cooling will do nothing c Advanced function Controls heating cooling or power saving with motion detection 24 VRF SVX28A EN Mode 5 Option Setting Configuration When digit 2 is set to a value of 5 the options shown in Table 2 can be changed to the values in the right column Table 2 Option setting mode Digit 2 2 5 Display screen rep Digit mode and 9 On Off Option description Set digit to 1 Factory set to 0 Cannot be changed Not seen in configuration mode Auto cof 2 Option setting mode 5 Auto O Disabled i i 3 Auto changeover HR only di Enabled see Figure Heating deadband 4 Note Applies only when digit 3 is set to 1 auto changeover mode is enabled Disabled 0 9 F 0 5 C 1 8 F 1 C 2 7 F 1 5 C 3 6 F 2 C 4 5 F 2 5 C 5 4 F 3 C 6 3 F
33. or unit the following factors must be considered The air inlet and outlet must be unobstructed The wall or ceiling must support the weight of the unit The wall or ceiling must not be subject to vibration Pre plan for easy and short routing of the refrigerant tubing and wiring to the outdoor unit The air must circulate freely in the area to be cooled heated Sufficient clearance must be maintained around the unit Condensate must be managed correctly and safety away from the unit The unit should be installed in a way that prevents unauthorized access The unit must not be installed in an area that is damp or could come into contact with water such as a laundry room The unit must not be exposed to direct sunshine or to other direct heat sources The filter must be able to be removed and cleaned easily The unit should be placed as far as possible from fluorescent lights so the remote control is not subject to interference Care should be takento prevent harmonics generated by loose or unsupported material in close proximity to a running unit The unit must not be installed in an area that is exposed to salt machine oil sulfide gas or corrosive environmental conditions VRF SVX28A EN Preparing for Installation Unit Dimensions Unit inch mm 22 03 24 80 585 630 ceiling opening 26 38 670 19 69 500 suspension position 26 38 670 19 69 500 suspension position 22 03 24 80 ceiling opening
34. ow the heating capacity can be reduced depending on the temperature condition If the cooling operation is used at over 90 F 32 C indoor temperature it does not cool at its full capacity Operating Mode for Heat Pump Systems For heat pump systems the main indoor unit controls whether the system operates in heating or cooling If the main indoor unit calls for heating and sub indoor units calls for cooling the main indoor unit and any other sub indoor units that call for heating will operate in heating mode and the sub indoor units that call for cooling will do nothing Cleaning the Exterior Use a dry or damp cloth to wipe the surface of the unit as needed If necessary use mild soap and water on a damp cloth Use a soft brush to remove dirt from the grill Avoid equipment damage and risk of fire Avoid using benzene or other flammable solvents They may damage the surface of the unit and increase the potential for fire Cleaning the Grill and Air Filter 1 Pull the grill downward by using the tabs on the edge of the grill see illustration Two safety clips will prevent it from dropping 32 VRF SVX28A EN Operation 2 Detach the grill by removing the two safety clip from the front panel To clean only the filter proceed to step 4 3 Pull out the air filter 4 Clean the grill and air filter with a vacuum or soft brush If the dust is too thick rinse them under running water and dry in
35. roperty damage only 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 Important 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 2013 Trane All rights reserved AWARNING Proper Field Wiring and Grounding Required Failure to follow code could result in death or serious injury
36. sive and clamps as necessary to ensure a tight fit with no leakage PVC pipe Drain hose 4 Install air vent to ensure smooth condensate drainage Eccle fs vent Ceiling 14 VRF SVX28A EN Installation e Do not install the hose with an upward gradient after the connection port or leaks will result The hose should not be allowed to hang loose from its connection to the unit Fasten the hose to a wall frame or other support as close to the unit as possible e If increasing the height of the drain pipe is necessary to set the drain hose at a sufficient slope installing a vertical drain pipe within 11 8 in 300 mm from the drain hose port see A If raised higher than 21 65 in 550 mm water leaks may result see C in figure Install the air vent at least 3 04 in 100 mm above the highest point of the drain pipe Air vent 1 8 in 300 mm or less 28 4 92 ft 1 1 5 m 1 65 in 550 mm or less 94 in 100 mm or more 79 in 20 mm or more mon Won nog og OQ Qu NU H Horizontal drain pipe more than 1 100 slope Ceiling VRF SVX28A EN 15 Installation Centralized Drainage If the installation requires more than three indoor units install the main air vent at the front of the indoor unit that is farthest from the main drain It may be necessary to install individual air vents to prevent water flowing back to each indoor unit See figure below 39 59 in 1 1 5 m Hang
37. springs or on the side of a hill in which the building is partly covered by earth ceilings frequently exposed to moisture such as in restaurants saunas swimming pools and corridors of dormitories or studios near a frequently used outdoor exit buildings with no ventilation system b Internal temperature of gas pipe is higher than 248 F 120 C 2 Wrap insulation around the entire surface of each pipe from the indoor unit to the outdoor unit overlapping insulation to avoid gaps Clamp insulation tightly to pipe e Do not wrap the gas and liquid refrigerant pipes together e Avoid compressing the insulation as much as possible e Be sure there are no cracks or deformities in the insulation at bends in pipes e f necessary double the insulation to prevent condensation from forming in warm or humid areas e Cut off excess insulation Drainage Hose Insulate field supplied the entire surface of the drain pipe that is inside the building including the connection between the drain hose and drain stub Clamp tightly VRF SVX28A EN 17 Wiring the Unit Wiring the Unit Power Communication Observe the following precautions when making electrical connections A WARNING Hazardous Voltage Disconnect all electric power including remote disconnects before servicing Follow proper lockout tagout procedures to ensure the power can not be inadvertently energized Failure to disconnect power before servicing could resul
38. t in death or serious injury Use Copper Conductors Only Unit terminals are not designed to accept other types of conductors Failure to use copper conductors could result in equipment damage e Make all electrical connections in accordance with electrical codes and ordinances e Select the power cable in accordance with relevant local and national regulations e Wire size must comply with local and national code e Use grade HO7RN F or HOBRN F power cable e Connect the power cable into the power cable terminal and fasten it with a clamp e Unbalanced power must be maintained within 10 of supply rating among whole indoor units e Significantly unbalanced power may shorten the life of the system If the unbalanced power is greater than 1096 of supply rating the unit will stop and an error code will be generated e Connect the power cable to the auxiliary circuit breaker An all pole disconnection from the power supply must be incorporated in the fixed wiring 1 8 in 3 mm e All wiring must be protected from weather and damage Maintain a distance of 2 in 50 mm or more between power and communication cables to prevent interference e Maintain a voltage drop of less than 10 between the power source and the unit s e Use an appropriate screwdriver for tightening the terminal screws A screwdriver with a small head will strip the head and make proper tightening impossible e Over tightening the terminal screws may break th
39. tton Note Values and their corresponding settings are listed in the following pages of this section of the manual To save the setting press the Power button twice To restore the wireless remote control to normal operating mode remove the batteries from the remote control Then re insert them VRF SVX28A EN VRF SVX28A EN Configuration Figure 3 VRF Wireless Remote Control Auto Cool Dry Fan Heat en 2 digit segment Power button Mode button Temp up Temp down d n good Room Blade Select Cancel On off Set Timer Timer Cancel 21 Configuration The 2 Digit Segments Each 2 digit segment is differentiated from the others by a combination of operation mode and timer on off icons See Figure 4 Figure 4 Two digit segments in the 24 digit sequence an Press ue y Auto Cool Dry Fan i f Heat an q un m mn a ci add yi OS QU qq VUE RF Ab 44 Toy ED e x f 4 Fg oca P ae E d tus tte umen A A E ms Auto wk Spot E v py 4 4 Fan vara Heat rur riri riri rir rir Grot Lt ort Lt oret Lt oret Lt oret Lt Notes Digits 1 7 13 and 19 shown in green are factory set and cannot be changed They do not appear on the display Digit 2 shown in red is used to change the configuration mode see Configuration Modes for details e The digit numbers shown in gray above each digit D2 D3 etc do not appear on the display Configuration Modes D
40. wing the guidelines in the figure below Threaded rod should not protrude more than 1 2 in 30 mm below the top of the bracket Washers isolators or spacers 8 Maintain proper spacing between the unit and the ceiling refer to the following figure 0 79 in 20 mm Indoor unit Ceiling 0 67 in 17 mm 9 Adjust the level of the unit with a leveler Purging the Unit The unit is shipped from the factory with a holding charge of nitrogen All of this gas must be purged from the unit To purge the unit unscrew the pinch pipes from the ends of both gas and liquid refrigerant pipes Make sure all gas has escaped before connecting the piping Note To prevent dirt or foreign objects from getting into the pipes during installation do not remove the pinch pipes completely until you are ready to connect the piping Liquid refrigerant port Gas refrigerant port 10 VRF SVX28A EN Installation Installing Refrigerant Piping VRF SVX28A EN Connect field supplied piping using flared connections not supplied or by brazing The large unit port is for gas refrigerant the small one is for liquid refrigerant Cut or extend field supplied piping as needed Use the following procedures System Failure If brazing is used for pipe connections a nitrogen purge is required to prevent the formation of copper oxides inside the piping Failure to follow this procedure could damage the system e Before conn
41. written permission of Trane Trane reserves the right to revise this publication at any time and to make changes to its content without obligation to notify any person of such revision or change Trademarks All trademarks referenced in this document are the trademarks of their respective owners VRF SVX28A EN Table of Contents INTFODUCTION uos ces eec teke da CR gulae ERROR au ghe Ee DR 2 Warnings Cautions and Notices eneen 2 Important Environmental Concerns een 2 Important Responsible Refrigerant Practices eeen 2 Model Number Description 00 0000 cece ett aes 5 Preparing for Installation earns perene cs Es EES aa REG ewan Candt 6 Accessories vant nnen BEE ee AHA SEARS OL AR A s ES Ere reda 6 Location Considerations sse 6 Unit Dimensions sees 7 Service Clearances nennen 8 Installation i ineen nan LAGER di a EE le Ben I COE Fat RUN RA a 9 Mounting the Unit sssssssesese eee 9 Purging the Unit gas ede eet a Oh ee nn aa ie ge NOCHE 10 Installing Refrigerant Piping eneen eee 11 Leak Testing Pipe Connections eneen eneen 13 Installing the Drain System nnee eneen 14 Centralized Drainage eee eee 16 Testing the Drainage 0 0 te 16 Insulation arran ee A RE e We Ne Tx AUR E RR E CR ER 17 Refrigerant Pipes nen eee eeen 17 Drainage Hose neee 17 Wiring AREA vereren ta tedere dee aans vendre Reeken ea EROR Een 18 ROWENTA nne NR KRW A Ee E SUR 18
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