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Trane Variable Refrigerant Flow System Outdoor Unit Series Installation and Maintenance Manual

1. circuit circuit circuit breaker or breaker or i breaker or Outdoor unit main i disconnect Outdoor unit sub disconnect Outdoor unit sub i disconnect JU ll e A S Laga keen ba 1 Kk b Fa L i Z ap Ale d j fi 2 Bug TT D H Z L IG x d 1 H d 1 A 5 T Jasse SC im E z Fa ape f D Na e vA Nang A 7 Hda Ah N S a OB e 1 sf Ground J Ground Ground ou U See Figure 23 E SR L al p 40 for details 152 Communion SEN Communication o 9 outdoor units Pa Power cable Power cable cable between Power cable 7 88 outdoor units co SE SE circuit 7 E Power cable a 35 t breaker or ES Communication between disconnect 05 outdoor and indoor units E GE Indoor unit Indoor unit Indoor unit Wired HE Wired SS Wired L remot emote Ground remote Ground remote Ground controller controller controller ee EE Detail of cable knock outs Notes e Remove burrs from the knock out hole e Use cable conduit and bushing to prevent cables from being damaged when passing through the knock out holes e Apply rust resistant paint around the knock out hole Communication cable Power cable Ground cable 38 VRF SVN34A EN Power Wiring VRF SVN34A EN Electrical Wiring AWARNING Avoid Risk of Fire or Explosion Do not let the power cable come into contact with the pipes inside the outdoor unit If the power supply cable touch
2. G Le SS io gi TENS ONES MU DI DIGIT DIGIT 2 e Se uy MO S N 00000000000000 e 00 7 A 7 N gt 7 N 7 N a pa Sg lt a T VRF SVN34A EN 53 Control System System Monitoring The 4 digit display indicates system power and communication status Table 32 4 digit display Event Digit 1 Digit 2 Digit 3 Digit 4 Power up ng ng ng ng Establishing communication between AT q Number of connected indoor units outdoor and indoor units Transmit receive Indoor unit A Indoor unit 0 S S normal operation MCU c MCU 1 Unit address decimal number a 4 digit display example showing power up is shown in Figure 30 b Mode change unit System Configuration DIP and Rotary Switches The outdoor unit control board contains one DIP switch and three rotary switches Figure 31 Use them to configure the system as described in Table 33 Figure 31 Switches on outdoor unit control board SW53 0000 ON OK 0000 eem SW51 SW52 SW57 SRO SHO Q U Q rA NE ONS YO TENS ONES MCU DIGIT DIGIT Table 33 System configuration using control board switches Switch Function description and notes Set at i td it only Wail Use to set total number of installed indoor units Secci So man one SW52 Note For example if 12 indoor unit
3. H2 Indoor units Table 20 Maximum allowable refrigerant piping length and height differences for heat pump installations Piping length and height differences Piping location ft m Notes Examples a b c d e f g p s656 Y joint only 722 ft 200 220 m 656 ft 200 m and Actual length below Distribution header ati lt 656 722 ft equivalent length 722 ft 220 m and only 200 220 m below a b h lt 656 722 ft 200 Outdoor unit to Y joint and distribution 220 m Maximum indoor unit header a i k lt 656 722 ft 200 allowable piping 220 m length Y joint only 3281 ft 1000 m or Distribution header Total piping length less only a b c d e f g p h i Y joint and distribution 3281 ft 1000 m header Between outdoor piping length r lt 33 ft 10 m s lt 33 ft 10 m t lt 33 ft 10 m units module 33 ft 10 m or less installation Equivalent length r lt 43 ft 13 m s lt 43 ft 13 m t lt 43 ft 13 m Maximum SE S 361 131 ft 110 40 m b H1 lt 164 131 ft 50 40 m allowable piping height difference Indoor unit to indoor 4 64 ft 50 m or less H2 lt 164 ft 50 m unit E 148 ft 45 m or less b c d e f g p lt 148 ft 45 m i lt 148 ft 45 m Maximum length First branch joint to ipina lenath after branch joint f
4. Pipe size OD Indoor unit capacity Liquid Gas MBH in mm in mm Less than 20 1 4 6 35 1 2 12 70 24 52 3 8 9 52 5 8 15 88 68 78 3 8 9 52 3 4 19 05 78 96 3 8 9 52 7 8 22 22 Heat Recovery Applications The example in Figure 10 shows a 26 ton capacity heat recovery system with pipe diameters specified Figure 10 Heat recovery system example 10ton Dron 8 ton Key Pipe size OD Outdoor High unit Pipe A pressure capacity Liquid Gas gas ton in mm in mm in mm 10 A 1 1 2 12 70 1 1 8 28 58 7 8 22 22 18 A 2 5 8 15 88 1 1 8 28 58 1 1 8 28 58 A 3 3 4 19 05 1 3 8 34 92 1 1 8 28 58 A 1 Select based on individual outdoor unit capacity Table 11 p 23 A 2 Select based on the sum of outdoor unit capacity behind the first outdoor unit multi connection Table 11 p 23 A 3 Select based on the sum of outdoor unit capacity before the first branch joint Table 11 p 23 B Pipes between branch joints Table 12 p 23 C Outdoor joints between outdoor units Table 14 p 24 D First branch joint Table 15 p 24 E Branch joints to indoor units Table 16 p 25 F Pipes between branch joints and indoor units Table 13 p 24 22 VRF SVN34A EN Refrigerant Piping Use Table 11 t
5. a Discharge mode may not operate normally if an error code occurs If an E464 or E364 occurs do not use the discharge mode because the power element may be damaged b If button K2 is pressed the specified number of times and the inverter check is not successful an error code will appear on the 4 digit disp ay Table 37 Button K3 Number of times button K3 is pressed Operation 4 digit display 1 Initialize reset operation Same as power up 8888 VRF SVN34A EN VRF SVN34A EN Table 38 Button K4 Control System Number of 4 digit display times button K4 is pressed Operation Digit 1 Digits 2 3 4 4TV 0072 6 ton Off 0 8 a 4TV 0096 8 ton j off 1 0 4TV 0120 10 ton Off 1 2 4TV 0144 12 ton Off 1 4 2 e alles SR 5 120 Hz 51 2 0 3 BA ib aa ofthe 3 120H2 1 2 0 d High pressure 4 220 46 psi 1 52 MPa 51 5 2 5 Low pressure 5 62 37 psi 0 43 MPa gt 0 4 3 6 Discharge temperature of COMP1 6 188 6 F 87 C 0 8 7 7 Discharge temperature of COMP2 7 188 6 F 87 C 0 8 7 8 IPM temperature of COMP1 8 188 6 F 87 0 8 7 9 IPM temperature of COMP2 9 188 6 F 87 50 8 7 10 CT sensor value of COMP1 A 2A gt 0 2 0 11 CT sensor value of COMP2 B 2A gt 0 2 0 12 Suction temperature C 43 6 F 42 C gt 4 2 13 COND
6. e Pad Terminal identification a s 4 Communication Pj between outdoor aS Pa and indoor units Se If so E 3 Communication Ka EZ C e5 T I oo between outdoor so IER 1 SE units oO Bo ih Q E as e VE e Fs Mik 32 Higher level E B 7 E controls U BI 1 TH D U X X X X VRF SVN34A EN 43 Electrical Wiring 44 To provide strain relief secure the communications cable with a clamp in the location shown in Figure 27 Figure 27 Communications cable clamping location Communications clamping location Pull the communications cable through the designated knock out at the bottom right of the outdoor unit see Figure 22 p 38 for details VRF SVN34A EN Leak Testing Pipe Connections Leak Testing Pipe Connections VRF SVN34A EN Before leak testing pipe connections read all safety precautions and notes AWARNING 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 precautions or to react properly to such potential hazards could result in death or serio
7. Connecting Branch Joints p 30 Required tools 1 Pipe cutter Reamer Pipe holder Using a pipe cutter cut the pipe so that the cut edge is at 90 to the side of the pipe Use a reamer to remove all burrs at the cut edge See examples of correctly and incorrectly cut pipes Correct 900 Oblique O S Burr Nitrogen Flushing While Brazing Avoid Unit Damage Never braze pipe connections without performing nitrogen flushing Failure to perform this procedure will damage the unit resulting in capacity loss and reduced long term reliability While brazing refrigerant pipes flush them with nitrogen gas Use a pressure regulator to maintain a flow rate of 1 76 ft3 h 0 05 m3 h or more Figure 11 Nitrogen flushing while brazing refrigerant pipes VRF SVN34A EN Nitrogen 27 Refrigerant Piping 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 Conventional flare tool R 410A clutch type Clutch type Wing nut type 0 0 020 in 0 04 0 06 in 0 06 0 08 in 3 Attach the yoke to the flaring bar centering the
8. Installation Operation and Maintenance Variable Refrigerant Flow System Outdoor Unit Series Models HP 208 230 V HP 460 V HR 208 230 V HR 460V 4TVH072B300NB ATVHO72B400NB 4TVRO72B300NB 4TVRO72B400NB 4TVH096B300NB ATVHO96B400NB 4TVR096B300NB 4TVRO96B400NB 4TVH120B300NB ATVH120B400NB 4TVR120B300NB 4TVR120B400NB 4TVH144B300NB 4TVH144B400NB 4TVR144B300NB 4TVR144B400NB ASAFETY 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 SVN34A EN February 2013 DB68 03592A 1 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 h
9. Troubleshooting Troubleshooting Error code E503 Is the service valve of the outdoor unit opened No Open the service valve of the outdoor unit Yes Is the 4 way valve and main EEV operating normally and Main EEV Check the 4 way valve Check for leakage on the system Perform vacuuming charge refrigerant Is the quantity of refrigerant appropriate Yes 1 Run the test operation for more than 30 minutes 2 Run Fan mode for more than 10 minutes 3 Restart the test operation Error code E505 and E506 Enable vacuum mode on all outdoor units Yes Is the service valve of the outdoor unit opened Open the service value of the outdoor unit Does the input sensor value of the installed outdoor unit satisfy Max min value difference of low pressure 52 Max min value difference of high pressure 52 No Reset the outdoor unit Run test operation L Disable vacuum mode on all outdoor units Analyze cycle data Check the input sensor replace if defective End VRF SVN34A EN 65 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
10. 4TV 0168B400NB 60 460 9 5 2 0 16 4 35 11 5 1 5 1 5 19 0 25 16 ton 4TV 0192B400NB 60 460 9 5 2 0 16 4 20 14 5 1 5 21 7 30 18 ton 4TV 0216B400NB 60 460 9 5 2 0 16 4 20 0 1 10 1 5 1 5 26 4 40 20 ton 4TV 0240B400NB 60 460 14 1 5 1 5 21 7 30 14 1 5 1 5 21 7 30 22 ton 4TV 0264B400NB 60 460 14 1 5 1 5 21 7 30 01 10 1 5 1 5 26 4 40 24 ton 4TV 0288B400NB 60 460 10 1 10 1 1 5 1 5 26 4 40 10 1 10 1 5 1 5 26 4 40 26 ton 4TV 0312B400NB 60 460 9 5 2 0 16 4 20 11 5 5 1 5 19 25 10 1 10 1 1 5 1 5 26 4 40 28 ton 4TV 0336B400NB 60 460 9 5 2 0 16 4 20 14 5 1 5 21 7 30 10 1 10 1 1 5 1 5 26 4 40 30 ton 4TV 0360B400NB 60 460 9 5 2 0 16 4 20 01 10 1 5 1 5 26 4 40 10 1 10 1 1 5 1 5 26 4 40 32 ton 4TV 0384B400NB 60 460 14 1 5 1 5 21 7 30 14 5 1 5 21 7 30 10 1 10 1 1 5 1 5 26 4 40 34 ton 4TV 0408B400NB 60 460 14 1 5 1 5 21 7 30 10 1 10 1 5 1 5 26 4 40 10 1 10 1 1 5 1 5 26 4 40 36 ton 4TV 0432B400NB 60 460 10 1 10 1 1 5 1 5 26 4 40 0 1 10 1 1 5 1 5 26 4 40 10 1 10 1 1 5 1 5 26 4 40 Notes e RLA is based on AHRI 1230 cooling standard condition indoor temperature 80 F 26 7 C DB 67 F 19 46 C WB outdoor temperature 95 F 35 C DB e Voltage tolerance is 10 e Maximum allowable voltage between phases is 2 e Refer to module combin
11. A B C D E F G XX lt lt lt lt lt EE ge 71 ka Naa ka Bai Su t 1 i i i i t 1 2 3 4 5 6 7 ltd Indoor units 8 Figure 14 Single installation with distribution header Heat pump Outdoor unit Distribution header SS H1 le SS e 4 5 Indoor units 32 VRF SVN34A EN Refrigerant Piping Figure 15 Single installation with Y joint and distribution header Heat pump Paan Outdoor unit Figure 16 Module installation with Y joint Heat pump Outdoor units Indoor units 8 Figure 17 Module installation with distribution header Heat pump DD Cd Outdoor units PAA Distribution header H1 VRF SVN34A EN Indoor units 33 Refrigerant Piping Figure 18 Module installation with Y joint and distribution header Heat pump Outdoor units Y joint
12. MCA MOP 6 ton 4TV 072B300NB 60 208 230 14 3 4 0 28 0 35 8 ton 4TV 0096B300NB 60 208 230 12 5 12 5 3 0 3 0 37 8 50 10 ton 4TV 0120B300NB 60 208 230 14 8 14 8 3 0 3 0 43 0 50 12 ton 4TV 0144B300NB 60 208 230 17 4 174 3 0 3 0 52 6 70 14 ton 4TV 0168B300NB 60 208 230 14 3 4 0 28 0 35 12 5 12 5 3 0 3 0 37 8 50 16 ton 4TV 0192B300NB 60 208 230 14 3 4 0 28 0 35 14 8 14 8 3 0 3 0 43 0 50 18 ton 4TV40216B300NB 60 208 230 14 3 4 0 28 0 35 17 4 17 4 3 0 3 0 52 6 70 20 ton 4TV 0240B300NB 60 208 230 14 8 14 8 3 0 3 0 43 0 50 14 8 14 8 3 0 3 0 43 0 50 22 ton 4TV 0264B300NB 60 208 230 14 8 14 8 3 0 3 0 43 0 50 17 4 17 4 3 0 3 0 52 6 70 24 ton 4TV 0288B300NB 60 208 230 17 4 17 4 3 0 3 0 52 6 70 17 4 17 4 3 0 3 0 52 6 70 26 ton 4TV 0312B300NB 60 208 230 14 3 4 0 28 0 35 12 5 12 5 3 0 3 0 37 8 50 174 17 4 3 0 3 0 52 6 70 28 ton 4TV 0336B300NB 60 208 230 14 3 4 0 28 0 35 14 8 14 8 3 0 3 0 43 0 50 174 17 4 3 0 3 0 52 6 70 30 ton 4TV 0360B300NB 60 208 230 14 3 4 0 28 0 35 17 4 17 4 3 0 3 0 52 6 70 17 4 17 4 3 0 3 0 52 6 70 32 ton 4TV 0384B300NB 60 208 230 14 8 14 8 3 0 3 0 43 0 50 14 8 14 8 3 0 3 0 43 0 50 17 4 17 4 3 0 3 0 52 6 70 34 ton 4TV 0408B300NB 60 208 230 14 8 14 8 3 0 3 0 4
13. Remove knock outs from only the holes that you are going to use Unused holes should remain closed to prevent damage to the unit e Take care to prevent damage to the exterior of the unit e Remove burrs from knock out hole edges and apply rust inhibitor Connect the pipes to the outdoor unit using flared connections or by brazing If brazing the pipe connection avoid damaging the service valve by wrapping it with a wet cloth as shown in Figure 12 p 30 e Avoid damaging the temperature sensor e Ensure that the connected pipes do not touch each other or make contact with the unit After making electrical connections see Electrical Wiring p 37 and insulating the pipes see Insulating Refrigerant Pipes p 48 replace the pipe cover and close the remaining gap 29 Refrigerant Piping Figure 12 Protecting the unit and temperature sensor while brazing the pipe connection Service valve Temperature sensor sensor Connecting Branch Joints Important Ensure that all pipe connections are accessible for servicing and maintenance For optimal refrigerant distribution use only factory joints Install outdoor joints as needed to connect multiple outdoor units to one another and Y joints connect the outdoor unit s to indoor units See the branch joint installation manual VRF SVN41 for details Note Outdoor units can be installed in any order Table 19 Connecting outdoor units with branch joints Cor
14. System Monitoring 2 0 0 tt ete 54 System Configuration DIP and Rotary Switches 54 System Configuration Buttons K1 K4 00000 eee 58 Pre Start Checka inresa n ver GAIN reed poe bce bA PA LABEL 61 Test Operation 42774343844 JAB DADING R eal ies ivi dd Gots deta tad 62 Automatic refrigerant detection operation 64 Lrogdbleehogatng 25 eegal NAG LANANG LATA LA TAGAL te ee 65 Warranty For Trane Advantage VRF Systems and Related Accessories 66 Basic Warranty EN e RE Vea NN DENG DULAG eee Pan DAIGDIG Vive es 66 Exclusions and Limitations 000 cece eee 66 VRF SVN34A EN Model Number Description 14 Digit 1 Refrigerant 4 R410A Digit 2 Brand name T Trane Digit 3 System type V Variable Refrigerant Flow Digit 4 Functional Type Outdoor Unit T Cooling Only Digital Scroll VRF F Cooling Only DC Inverter VRF S Heat Pump Digital Scroll VRF H Heat Pump DC Inverter VRF R Heat Recovery 3 pipe DC Inverter VRF K Heat Recovery 3 pipe Digital Scroll VRF Digit 5 Reserved for future use 0 Standard Digit 6 7 8 Nominal capacity Btu h x 1 000 036 36 000 Btu h 048 48 000 Btu h 060 53 000 Btu h 072 72 000 Btu h 096 96 000 Btu h 120 120 000 Btu h 144 144 000 Btu h Digit 9 Major development sequence B Second development sequence Samsung Digit 10 Electric power supply characteristics 1 220 60
15. 0 039 1 00 3 4 19 05 0 035 0 9 7 8 22 22 0 035 0 9 1 25 40 0 039 1 0 1 1 8 28 58 0 043 1 1 1 1 4 31 75 0 043 1 1 ka AA 0 048 1 35 aa a 1 1 2 38 10 0 053 2 0 1 5 8 41 28 0 056 1 43 1 3 4 44 45 0 063 2 10 2 50 80 0 079 2 00 2 1 8 53 98 0 083 2 10 25 Refrigerant Piping Storing Refrigerant Piping To prevent foreign materials or water from entering the pipe storing method and sealing method especially during installation is very important Apply correct sealing method depending on the environment see Table 18 Table 18 Refrigerant pipe storage factors Storage location Storage time Sealing type Longer than one month Pipe pinch Outdoor Shorter than one month Taping Indoor Taping Evacuating Refrigerant The outdoor unit ships with the following amount of refrigerant Evacuate the unit of all ship with refrigerant before installing refrigerant piping Ship with refrigerant amount by unit type 6 ton unit 8 ton unit 10 ton unit 12 ton unit 12 1 Ibs 16 3 Ibs 16 3 Ibs 19 2 Ibs Installing Refrigerant Piping AWARNING 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 lines or any unit components that are above atmospheric pressure or where refrigerant may be present Always remove ref
16. 4 305 714 3 324 34 6x66 7x30 1 37 3x75 3x32 8 4TVR0072B400NB 880x1695x765 445 3 202 948x1912x832 480 6 218 ao a 4TVR0096B400NB Saan EGO 460 V 51 0x66 7x30 1 553 4 251 53 7X75 3x32 8 595 2 27 7 VBOT2OBADANE 1295x1695x765 1363x1912x832 4TVR0144B400NB 692 3 314 734 1 333 VRF SVN34A EN Figure 1 Units mm inches 593 23 35 W 127 5 __ 782 30 79 2000 78 74 Dimensional drawing 4TVH072 4TVR072 1210 47 64 1318 51 89 612 24 09 108 4 25 A Optional condenser air discharge duct B Optional wind snow protection duct Units mm inches 1197 47 13 593 23 35 w T ive 612 24 09 1210 47 64 1318 51 89 127 5 2415 95 08 560 22 05 880 34 05 560 22 05 871 34 29 BE S Als T ga A Eaz A o wy Ox CH E LLL A 3 ct 1 4 S L S 3 PAR z ale AP aga Bb gt d DI vo NO Ss 929 2 SE 522 e Peia B S T P Sr N ef B 5 i al SES ES 1 ol I L Hm S S G 3 765 30 12 550 165 3 Figure 2 Dimensional drawing 4TVH096 120 144 4TVRO96 120 144 560 22 05 1295 50 98 560 22 05 871 34 29 ai ec ag SIN A Zo A S Ln CoD a L LL n D amp pa E IE Ja ag HIN SI PNR AER DIN Ee B B SZ B EK CC SI 1 SS Q 765 30 12 550 21 65 S Kai N L o o A Optional condenser air discharge duct B Optional wind snow protec
17. Out temperature D 43 6 F 42 C gt 4 2 14 Temperature of liquid pipe E 43 6 F 42 C gt 4 2 15 TOP temperature of COMP1 F 43 6 F 42 C gt 4 2 16 TOP temperature of COMP2 G 43 6 F 42 C gt 4 2 17 Outdoor temperature H 43 6 F 42 C gt 4 2 18 ESC inlet temperature I 43 6 F 42 C gt 4 2 19 ESC outlet temperature J 43 6 F 42 C gt 4 2 20 Main EEV1 step K 2000 steps gt 2 0 0 21 Main EEV2 step L 2000 steps gt 2 0 0 22 ESC EEV step M 300 steps gt 3 0 0 23 HR EEV step N 300 steps gt 3 0 0 24 Fan step SSR or BLDC O 13 steps 0 1 3 25 Current frequency of COMP1 P 120Hz 7 1 2 0 26 Current frequency of COMP2 Q 120Hz 7 1 2 0 27 Suction 2 temperature HR R 43 6 F 42 C gt 4 2 If master indoor unit is not selected Blank N D 28 Master indoor unit address S If indoor unit No 1 is selected as master indoor unit gt 0 O 1 b9 Control System 60 Table 39 Button K4 pressed and held for 3 seconds Number of times 4 digit display toggles between 1 and 2 K4 is pressed and Device held 3 seconds Software version 1 Version 2 examples 1 Main circuit board version MAIN 1412 2 Hub circuit board version HUB 1412 3 Inverter 1 version INVI 1412 4 Inverter 2 version INV2 1412 5 Fan 1 version FANL 1412 6 Fan 2 version FAN2 1412 7 E
18. are at risk of being seriously damaged 1 Provide power to the outdoor unit at least 6 hours before operating it Notes When power is supplied to the outdoor unit it will check for and verify communications with the indoor units 2 Ensure that the front of the outdoor unit is closed 3 Press and hold button K1 for 5 seconds to run the test operation see Table 35 p 58 e While the test operation is running and after the communication check UP UnPrepared appears on the digital display and the compressor is restricted from operating The display will clear automatically when the test operation is completed e The test operation may proceed from 20 minutes to maximum 2 hours depending on the operating status e During the test operation noise may occur due to valve inspection Examine the unit if abnormal noise continually occurs 4 If error codes E503 E505 or E506 occur during the test operation refer to Error code E503 p 65 or Error code E505 and E506 p 65 If any other errors occur or if an inspection is needed refer to the service manual 5 When the test operation ends use VRF Enterprise Management Software or VRF Auto Commissioning Tool to issue a test results report If any items in the report are marked with an inspection required sign refer to the service manual for information on correcting the items and run the test operation again 6 Ensure the following e The system has the corr
19. c If 1 1 2 38 1 pipe is not available on site use 1 5 8 41 28 pipe Use Table 9 to determine the size of pipes between branch joints Refer to B in Figure 13 p 32 Table 9 Pipe size between branch joints B Branch pipe size OD when pipe is Branch pipe size OD when pipe is Indoorunit lt 147 6 ft 45 m 147 6 295 3 ft 45 90 m total capacity Liquid Gas Liquid Gas MBH in mm in mm in mm in mm Less than 51 3 8 9 52 5 8 15 88 1 2 12 70 3 4 19 05 51 75 9 3 8 9 52 3 4 19 05 1 2 12 70 7 8 22 22 76 95 9 3 8 9 52 7 8 22 22 1 2 12 70 1 25 4 2 96 135 9 1 2 12 70 1 1 8 28 58 5 8 15 88 1 1 8 28 58 136 153 9 1 2 12 70 1 1 8 28 58 5 8 15 88 1 1 4 31 75 b 154 239 9 5 8 15 88 1 1 8 28 58 3 4 19 05 1 1 4 31 75 b 240 335 9 3 4 19 05 1 3 8 34 92 7 8 22 22 1 1 2 38 1 336 460 9 3 4 19 05 1 5 8 41 28 7 8 22 22 1 5 8 41 28 461 577 3 4 19 05 1 5 8 41 28 7 8 22 22 2 1 8 53 98 a If 1 25 4 pipe is not available on site use 1 1 8 28 58 pipe b If 1 1 4 31 75 pipe is not available on site use 1 3 8 34 92 pipe c If 1 1 2 38 1 pipe is not available on site use 1 5 8 41 28 pipe VRF SVN34A EN 21 Refrigerant Piping Use Table 10 to determine the size for pipes between branch joints and indoor units Refer to F in Figure 13 p 32 Table 10 Pipe size between the branch joint and indoor unit F
20. 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 28 VRF SVN34A EN Refrigerant Piping 6 Align the pipes and tighten the flare nuts manually and then with a spanner torque wrench applying the torque according to pipe dimensions Outer diameter Connection Flare dimension in mm torque ft Ib 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 S R 016 031 1 2 12 70 36 1 45 0 ft lb 0 64 0 65 DE E o 5 8 15 88 50 2 60 5 ft lb 0 76 0 78 8 Connecting Piping to the Outdoor Unit Important Ensure that all pipe connections are accessible for servicing and maintenance Pipes can be connected to the outdoor unit at the front bottom left or bottom right of the unit as shown in the following figure Right side Heat pump s YA EE LI Gas side R Liquid pipe side pipe Liquid z Z side pipe Heat recovery Liquid L side pipe Liquid side pipe Pipe connections VRF SVN34A EN Remove the pipe cover from the outdoor unit
21. kPa and a burst pressure of at least 3002 28 psi 20 700 kPa Copper pipe for hydro sanitary applications is unsuitable e f there is a risk of decreased performance caused by pipe length use piping that is one size larger than that specified in this section Heat Pump Applications The example in Figure 9 shows a 26 ton capacity heat pump system with pipe diameters specified Figure 9 Heat pump system example 10ton 8ton 8 ton Outdoor Pipe size OD unit Pipe A capacity p Liquid Gas ton in mm in mm 10 A 1 1 2 12 70 1 1 8 28 58 18 A 2 5 8 15 88 1 1 8 28 58 26 A 3 3 4 19 05 1 3 8 34 92 Key A 1 Select based on individual outdoor unit capacity Table 8 p 21 A 2 Select based on the sum of outdoor unit capacity behind the first outdoor unit multi connection Table 8 p 21 A 3 Select based on the sum of outdoor unit capacity before the first branch joint Table 8 p 21 B Pipes between branch joints Table 9 p 21 C Outdoor joints between outdoor units Table 14 p 24 D First branch joint Table 15 p 24 E Branch joints to indoor units Table 16 p 25 F Pipe size between branch joints and indoor units Table 13 p 24 20 VRF SVN34A EN Refrigerant Piping Use Table 8 to determine the size of the main pipes based on pipe lengt
22. 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 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 require
23. 1 3 208 230 60 3 4 460 60 3 6 220 60 3 Digit 11 Coil fin protection 0 Standard B Blue fin C Corrosion resistant Digit 12 Reserved for future use 0 Not currently used VRF SVN34A EN 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 Unit Dimensions and Weight Table 1 Unit dimensions and weight Shipping Dimensions dimensions Unit model WxHxD Weight WxHxD Shipping weight Unit type number in mm Ib kg in mm Ib kg 34 6x66 7x30 1 37 3x75 3x32 8 4TVH0072B300NB 880x1695x765 425 5 193 948x1912 832 460 8 209 Heat Pump 4TVH0096B300NB E S 203 230 V 51 0x66 7x30 1 623 9 665 8 30 4TVH0120B300NB EE 1295x1695x765 1363x1912x832 4TVH0144B300NB 657 0 298 698 9 317 34 6x66 7x30 1 37 3x75 3x32 8 4TVR0072B300NB 880x1695x765 425 5 193 948x1912x832 460 8 209 Heat Recovery 4TVR0096B300NB maa BE 203 230 V 637 1 679 0 30 R IOONE 51 0x66 7x30 1 53 7X75 3x32 8 1295x1695x765 1363x1912x832 4TVR0144B300NB 672 4 305 714 3 324 34 6x66 7x30 1 37 3x75 3x32 8 4TVH0072B400NB 880x1695x765 436 5 198 948x1912 832 471 8 214 ABO 4TVH0096B400NB Dee ge 460 V 51 0x66 7x30 1 540 1 245 53 7X75 3x32 8 582 0 264 ATEHOT 2 ORS OUND 1295x1695x765 1363x1912x832 4TVH0144B400NB 672
24. 3 0 50 17 4 17 4 3 0 3 0 52 6 70 17 4 17 4 3 0 3 0 52 6 70 36 ton 4TV 0432B300NB 60 208 230 17 4 17 4 3 0 3 0 52 6 70 17 4 17 4 3 0 3 0 52 6 70 17 4 17 4 3 0 3 0 52 6 70 Notes s RLA is based on AHRI 1230 cooling standard condition indoor temperature 80 F 26 7 C DB 67 F 19 46 C WB outdoor temperature 95 F 35 C DB e Voltage tolerance is 10 e Maximum allowable voltage between phases is 2 e Refer to module combination table for independent units information e Abbreviations RLA Rated load ampere FLA Full load ampere MCA Minimum circuit amperes MOP Maximum overcurrent protective device amperes Table 25 Circuit breaker and power cable specifications Heat pump heat recovery 460 V Module 1 Module 2 Module 3 E 4 Power Power Power d Units RLA FLA supply RLA FLA supply RLA FLA supply 8 Comp Comp Fan Fan Comp Comp Fan Fan Comp Comp Fan Fan Model Hz V 1 2 1 2 MCA MOP 1 2 1 2 MCA MOP 1 2 1 2 MCA MOP 6 ton 4TV 0072B400NB 60 460 9 5 2 0 16 4 20 8 ton 4TV40096B400NB 60 460 11 5 1 5 1 5 19 0 25 10 ton 4TV 0120B400NB 60 460 14 1 5 1 5 21 7 30 12 ton 4TV 0144B400NB 60 460 10 1 10 1 1 5 1 5 26 4 40 14 ton
25. 7 8 22 23 1 25 4 Additional refrigerant RSE NAKO 0 013 0 02 0 040 0 06 0 084 0 125 0 121 0 18 0 181 0 27 0 235 0 35 0 356 0 53 Note Foran indoor unit with a factory installed EEV the quantity of refrigerant in addition to the quantity based on the unit capacity Table 28 is 0 0067 lb ft regardless of the pipe size Table 30 Refrigerant quantity for each indoor unit b Capacity MBH 7 5 9 9 5 12 18 20 24 30 36 48 76 8 96 Model Refrigerant quantity Ib kg 1 way cassette 0 55 0 55 0 55 4TVEOO B100NB 0 25 0 25 0 25 Mini 4 way cassette 0 82 0 82 0 82 0 82 4TVB004 B100NB 0 37 0 37 0 37 0 37 4 way cassette 0 99 0 99 0 99 1 52 1 52 1 52 4TVCOO B100NB 0 45 0 45 0 45 0 69 0 69 0 69 Slim duct 0 53 0 53 0 53 0 99 0 99 0 93 0 93 1 37 4TVLOO B1i00NB 0 24 0 24 0 24 0 45 0 45 0 42 0 42 0 62 MSP duct 0 62 0 62 1 19 1 19 1 50 4TVD004 B100NB 0 28 0 28 0 54 0 54 0 68 HSP duct 1 50 1 50 2 60 2 60 4TVA00 B100NB 0 68 0 68 1 18 1 18 High wall 0 53 0 53 0 53 0 79 0 79 0 79 4TVWOO B100NB 0 24 0 24 0 24 0 36 0 36 0 36 ceiling floor pe ga 4TVX00 B100NB 0 39 0 39 Notes e Additional refrigerant charging of MCU is 1 1 Ib 0 5 kg for every MCU kit e For an indoor unit with an AHU kit add 0 04 Ib 0 018 kg of refrigerant for 1 MB
26. 8 7 8 22 22 1 3 8 34 92 1 1 8 28 58 30 360 3 4 19 05 1 5 8 41 28 1 3 8 34 92 7 8 22 22 1 5 8 41 28 1 3 8 34 92 32 384 3 4 19 05 1 5 8 41 28 1 3 8 34 92 7 8 22 22 1 5 8 41 28 1 3 8 34 92 34 408 3 4 19 05 1 5 8 41 28 1 3 8 34 92 7 8 22 22 1 5 8 41 28 1 3 8 34 92 36 432 3 4 19 05 1 5 8 41 28 1 3 8 34 92 7 8 22 22 1 5 8 41 28 1 3 8 34 92 a Increase the liq VRF SVN34A EN uid pipe by one size if the pipe length gt 295 3 ft 90 m as specified in this column Use Table 12 to determine the size of pipes between branch joints Refer to B in Figure 10 p 22 Table 12 Pipe size between branch joints B Indoor unit total Branch pipe size OD Capacity Liquid Gas High pressure gas MBH in mm in mm in mm Less than 51 3 8 9 52 5 8 15 88 5 8 15 88 51 75 9 3 8 9 52 3 4 19 05 5 8 15 88 76 95 9 3 8 9 52 7 8 22 22 3 4 19 05 96 114 9 1 2 12 70 1 1 8 28 58 3 4 19 05 115 153 9 1 2 12 70 1 1 8 28 58 1 1 8 28 58 154 171 9 5 8 15 88 1 1 8 28 58 1 1 8 28 58 172 239 9 5 8 15 88 1 1 8 28 58 1 1 8 28 58 240 335 9 3 4 19 05 1 3 8 34 92 1 1 8 28 58 336 359 9 3 4 19 05 1 5 8 41 28 1 1 8 28 58 360 460 9 3 4 19 05 1 5 8 41 28 1 3 8 34 92 461 577 3 4 19 05 1 5 8 41 28 1 3 8 34 92 23 Refrigerant Piping Use Table 13 to determine the size for th
27. 8000 Total Minimum Btu h 36000 48000 60000 72000 84000 96000 108000 120000 capacity of connected indoor Maximum Btu h 93600 124800 156000 187200 218400 249600 280800 312000 units cooling Madmumnumberot 12 16 20 25 29 33 37 41 connectable indoor units Table 3 Outdoor unit combinations 22 36 ton capacity Capacity 22 ton 24 ton 26 ton 28 ton 30 ton 32 ton 34 ton 36 ton Model name for Combination 4TV 0264 ATV 0288 4TV 0312 4TV 0336 4TV 0360 4TV 0384 aTV O408 4TV 0432 Total number of individual 2 2 3 3 3 3 3 3 outdoor units ATV 0072 1 1 1 Combine 4TV 0096 1 doutdoor unit 4TV 0120 1 1 2 1 ATV 0144 1 2 1 1 2 1 2 3 Nominal Cooling Btu h 264000 288000 312000 336000 360000 384000 408000 432000 capacity Heating Btu h 297000 324000 351000 378000 405000 432000 459000 486000 Rated Cooling Btu h 252000 276000 299000 321000 345000 366000 390000 414000 capacity Heating Btu h 283000 308000 334000 360000 385000 412000 437000 462000 Total Minimum Btu h 132000 144000 156000 168000 180000 192000 204000 216000 capacity of indoor units Maximum Btu h 343200 374400 405600 436800 468000 499200 530400 561600 cooling extn HHS 45 49 54 58 62 64 64 64 connectable indoor units 10 VRF SVN34A EN Accessories Accessories that ship with the unit are Table A Pipe installation socket size chart Instruction manual Brand label an
28. Class 1 flexible conduit Galvanized steel sheet If conduit is installed indoors but exposed to outside elements conduit Class 1 PVC coated flexible Galvanized steel sheet and soft PVC compound If conduit is installed outdoors and requires waterproofing 6 Pull the power cable through the designated knock out at the bottom right of the outdoor unit see Figure 22 p 38 for details 39 Electrical Wiring 40 Figure 23 Power wiring connections LI ov st zs Ov 0000000000000 00 p 78007808787 O A Power terminal location 1 oN Thick cable Detail for connecting two cables to one terminal Solderless ring terminal Cable tie Thin cable VRF SVN34A EN Electrical Wiring Table 24 Circuit breaker and power cable specifications Heat pump heat recovery 208 230 V Module 1 Module 2 Module 3 E Power Power Power d Units RLA FLA supply RLA FLA supply RLA FLA supply A Comp Comp Comp Comp Fan Fan Comp Comp Fan Fan Model Hz v 1 2 Fan1 Fan2 MCA MOP 1 2 1 2 MCA MOP 1 2 1 2
29. EP version EEP 1412 Digit 1 Digit 2 Digit 3 4 Address example r AE a 2 9 a Manually assigned unit MAIN Indoor unit A Indoor unit 0 v45 addresses MCU C MCU 1 a Toggles between indoor unit and MCU VRF SVN34A EN Pre Start Checks Pre Start Checks After installation and before the test operation is conducted perform the following pre start checks Avoid Damage to the Communication Circuit Do the communication circuit not measure the communication terminal with an insulation tester Doing so will damage 4TV B400NB 460V 460V 460V Tab Ensure that the power and communication cables of the indoor and outdoor units are properly connected Before supplying power use a 500 Vdc 4TV B400NB or 600 Vdc 4TV B300NB insulation resistance tester to measure the power terminal 3 phase R S T and the outdoor unit grounding The resistance measurement should be over 30 MQ Before supplying the power use a voltmeter and phase tester to check the voltage and the phase between wires R S S T T R 460 V TV B400NB or 230 V 4TV B300NB 4TV B300NB WI T o Ds 230V 230v Su Ia Las LZ 230V Hz IR J R Ensure that the indoor units are connected The protection system cuts power to the PCB for overvoltage when N phase is cross wired to the R S and T terminals Check t
30. H capacity of the AHU kit 50 VRF SVN34A EN VRF SVN34A EN Refrigerant Charging Table 31 Calculation example for refrigerant amount additional to basic unit amount 200 9 Ib 91 3 kg e For each MCU kit additional refrigerant charging is 1 1 Ib 0 5 kg e For an indoor unit with an AHU kit add 0 04 Ib 0 018 kg of refrigerant for 1 MBH capacity of the AHU kit e When calculating refrigerant for heat recovery apps make sure you add Refrigerant amount Additional EE Ib ft refrigerant Total additional STE Pipe length ft from Table 29 p 50 amount Ib refrigerant Ib in mm 1 2 1 x 2 1 x 2 1 4 6 35 114 8 0 013 1 49 3 8 9 52 164 0 0 040 6 56 12 19 1 2 12 70 49 2 0 084 4 13 Refrigerant amount Additional Ib each refrigerant Total additional Indoor unit b Number of units from Table 30 p 50 amount Ib refrigerant Ib model 1 2 1 x 2 x 1 x 2 4 way cassette 4TVCOO B100NB 4 0 99 3 96 Slim duct 4TVLOO B100NB 2 0 99 1 98 pm Slim duct 4TVLOO B100NB 1 0 53 0 53 1 way cassette 4TVE00 B100NB 1 0 55 0 55 Notes e The total amount of refrigerant in the system must not exceed 220 Ib 100 kg If the refrigerant weight exceeds this amount separate the modules into smaller modules or units so that the maximum weight is not exceeded For example for 4TV 144 the basic amount of refrigerant is 19 1 Ib 8 7 kg
31. ITNESS 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 SVN34A EN Warranty For Trane Advantage VRF Systems and Related Accessories VRF SVN34A EN 67 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 offers a broad portfolio of advanced controls and HVAC systems comprehensive building services and parts For more information 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 SVN34A EN 01 Feb 2013 We are committed to using environmentally CED ingerson Rand New conscious print practices that reduce waste
32. Therefore the total amount of additional refrigerant a b should not exceed Example 1 NG 1 4 6 35 16 4 5 24 MBH 1 4 6 35 32 8 10 24 MBH 1 4 3 8 9 52 32 8 10 3 8 9 52 32 8 10 3 8 9 52 32 8 10 7 3 8 9 52 328 10 144 MBH 1 2 12 7 16 4 5 1 2 12 7 16 4 5 1 2 12 7 16 4 5 A 3 8 9 52 32 8 10 Units Pipe diameter in mm Pipe length f m 1 4 6 35 16 4 5 Note For heat recovery systems add 1 1 Ib 0 5 kg additional refrigerant for each MCU kit 51 Refrigerant Charging Charging Refrigerant To charge refrigerant 1 With the unit still in a vacuum open the manifold gauge valve connected to the liquid side service valve and add the liquid refrigerant 2 If you are unable to add all of the refrigerant needed into the liquid side close the liquid side remove the liquid manifold hose then open the gas valve Press K2 once to initiate refrigerant charging in cooling mode To determine if the amount of refrigerant added is correct use the automatic refrigerant function see Figure p 64 Figure 29 Charging additional refrigerant Outdoor unit Manifold gage Outdoorunit Outdoor unit Gas Liquid side R 410A e Segen R 410A Inject liquid 281 Ta Inject liquid X Xi refrigerant l refrigerant 3 SE ba L
33. actory default Enable when installation is in a humid area such as near a river or lake Outdoor unit fan speed correction Single Factory default Increase fan speed to maximum value 56 VRF SVN34A EN Table 34 Options and corresponding settings continued Control System prevention control Outdoor Digit Digit Digit Digit Option unit 1 2 3 4 Value Comments 0 0 Disabled factory default ight ti i 0 1 Level 1 Night time silent Main 0 7 mode 0 2 Level2 0 3 Level 3 0 0 Disabled factory default Kas e height difference type 1 When the outdoor unit is 131 23 262 47 ft 40 0 1 indoor unit is lower than S 3 80 m above the indoor unit outdoor unit Sika AA Main 0 8 Case 2 height difference type When the outdoor unit is more than 262 47 ft setting 0 2 indoor unit is lower than l R 80 m above the indoor unit outdoor unit Height ditrerence type 2 When the indoor unit is more than 98 43 ft 0 3 outdoor unit is lower than i d K 30 m above the outdoor unit indoor unit 0 0 Disabled factory default When the equivalent length of the farthest NG indoor unit from the outdoor unit is between Long piping Main l0 9 0 1 Level 1 328 08 557 74 100 170 m condition 0 2 Level 2 When equivalent length of farthest indoor unit from the outdoor unit is over 557 74 ft 170 m Ga
34. and national regulations e Power cable specifications are based on the following conditions underground ambient temperature of 86 F 30 C single multi conductor cables Note If conditions are different from these consult an electrical installation expert and re select the power cable If the length of power cable exceeds 164 04 ft 50 m re select the power cable considering the voltage drop e Use a power cable made out of incombustible material for the insulator inner cover and the sheath outer cover e All wiring must be protected from weather and damage e Do not use power cable that has exposed wire e Do not disconnect or change the factory wiring inside the unit e Provide strain relief for power and communication cables e Unbalanced power must be maintained within 10 of supply rating among all indoor units or the unit will stop and an error code will be generated Significantly unbalanced power may shorten the life of the system e Maintain a distance of 2 in 50 mm or more between power and communication cables to prevent interference 37 Electrical Wiring Figure 22 Typical system installation wiring
35. ang savin 0 0 Disabled factory default If enabled energy saving mode triggers SE g Main 1 0 when the room temperature reaches 0 1 Enabled setpoint while operating in heating mode 0 0 Disabled factory default If enabled continuous heating operation is Rotation defrost gt Main 1 1 possible but heating performance will 0 1 Enabled decrease during rotation defrost operation Expand operational 0 0 Disabled factory default If enabled continuous cooling operation is temperature range Main 1 2 possible even in low temperature condition for cooling 0 1 Enabled down to 5 F 15 C but MCU noise will operation b increase Automatic setting factory A U default Channel address Main 1 3 Used for centralized control 0 15 Manual setting for channel 0 15 Snow H 0 Enabled factory default If enabled the fan may rotate when the unit accumulation Main 1 4 A S 0 1 Disabled is not operating a Enabling this setting is unnecessary if high head b Heat recovery only VRF SVN34A EN condition is set 57 Control System System Configuration Buttons K1 K4 58 Buttons K1 and K2 are used to initiate system operations The 4 digit display responds as shown in the last column of the following tables Table 35 Button K1 Number of times button K1 is pressed Operation 4 digit display 1 hold for 5 seconds Test operation K K Blank Blank 1 Refrigerant char
36. arthest indoor unit piping leng 148 295 ft 45 90 m e Cie conditions must be satisfied see Table 21 p 4EEVEVA24SA000 E 6 6 ft 2 m or less AEEVEVA32SA000 For 1 indoor unit 4EEVXDA24K132A Electronic 4EEVXDA24K200A For 2 indoor units expansion valve Actual piping length 4EEVXDA32K200A EEV kit 66 ft 20 m or less 4EEVXDA24K232A PS For 3 indoor units 4EEVXDA32K224A 4EEVXDA32K300A a Equivalent length Y joint 1 64 ft 0 5 m distribution header 3 28 ft 1 m b If the indoor unit is at a higher level than outdoor unit the allowable height difference is 131 ft 40 m If the indoor unit is located at a lower level than the outdoor unit the allowable height difference is 361 ft 110 m If the height difference exceeds 164 ft 50 m request engineering support from Trane c Required for indoor units that do not have internal EEVs Refer to the EEV kit installation guide VRF SVN43 for detailed information 34 VRF SVN34A EN Table 21 Required condition note toTable 20 p 34 Refrigerant Piping Condition Example First branch joint to farthest indoor unit 148 ft 45 m lt b c d e f g p lt 295 ft 90 m branch pipes b c d e f g size must be increased by 1 size Total length of extended pipe If the size of the pipe between the first branch joint and the outdoor unit is not increased by 1 size a b c d e f g x2 h i k l m n p lt 3281 ft 1000 m If the size of the p
37. ation table for independent units information e Abbreviations RLA Rated load ampere FLA Full load ampere MCA Minimum circuit amperes MOP Maximum overcurrent protective device amperes VRF SVN34A EN 41 Electrical Wiring Grounding Important Grounding must be done by a qualified electrician 1 Select rated grounding cable by referring to the outdoor unit power cable specifications Table 24 p 41 and Table 25 p 41 2 Connect the grounding cable to the grounding hole inside the power supply box and pull it through the designated grounding knock out see Figure 24 for details Figure 24 Grounding cable connection location H L 9 bE u d d E Eal Sl e Grounding cable connection hole e oo dq la EI Kal hed Grounding cable knock out Power cable Table 26 Grounding resistance requirements Power condition at installation site High or average humidity Low humidity s Ensure that the grounding resistance is x100 Ideally grounding resistance should be lt 100 Q and Volt t dis lt 150V Biker SIY E e If a circuit breaker is installed that disconnects the should not exceed 250 Q circuit within 0 5 seconds the allowable grounding resistance is 30 500 Q Ensure that the grounding resistance is x100 Q If a circuit breaker is installed that disconnects the circuit within 0 5 seconds
38. azardous 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 property 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
39. chnical data book for hole specifications for mounting Isolation mounts 4 holes 0 71 18 31 6 803 30 0 761 Outdoor unit 4 holes 0 47 12 Table 6 Anchor specification Size Drill bit Anchor length Sleeve length Fastening m diameter a b c Insertion depth torque S A c 265 5 in Ibf 10 mm 1 2in 14 mm 3 in 75 mm 1 1 2 in 40 mm 2 in 50 mm 30 N m Table 7 Unit and bolt dimensions 4TVHO72 4TVHO96 120 144 Dimensions 4TVRO72 4TVR096 120 14444444 Unit width A 37 01 in 940 mm 53 15 in 1350 mm Distance between bolts B 29 13 in 740 mm 45 28 in 1150 mm 17 Unit Installation Condenser Air Discharge Duct optional ACAUTION Sharp Edges Working with galvanized sheet metal involves working with sharp edges To avoid being cut technicians MUST put on all necessary Personal Protective Equipment PPE including gloves and arm guards If you remove the fan guard to install the discharge duct make sure to install a safety net on the duct outlet to prevent foreign substances from entering the unit and to prevent the risk of personal injury from sharp fan blades A discharge duct can be installed on the outdoor unit to prevent foreign substances from entering the unit The static pressure of the discharge duct should be within the standard specification of 0 02 inches of water 78 45 Pa when ins
40. connected after the first branch according to the total capacity of all indoor units connected after the branch Refer to E in Figure 9 p 20 heat pump or Figure 10 p 22 heat recovery Table 16 Branch joints connected after the first branch according to total indoor unit capacity E Total indoor unit Branch joints after the first branch E capacity MBH Model Less than 51 4YDK1509B0051A 51 135 9 4YDK2512B0138A 136 153 9 4YDK2812B0160A Y joint 154 239 9 4YDK2815B0240A 240 335 9 4YDK3419B0336A 336 460 9 4YDK4119B0468A 461 and over 4YDK4422B0999A Less than 76 4YDK1500B0080A High pressure gas Y joint for heat recovery models 76 239 9 4YDK2500B0240A 240 461 4YDK3100B0468A Pipe Minimum Thickness and Temper Grade Based on Pipe Size Table 17 specifies thickness and temper grade based on pipe diameter ACAUTION VRF SVN34A EN Risk of Pipes Breaking If pipes with a diameter larger than 3 4 in 19 05 mm are specified use semi hard C1220T 1 2H or hard C1220T H copper piping If a softer copper pipe C1220T O is used the pipe may break due to its low pressure resistance and cause personal injury Table 17 Refrigerant pipe minimum thickness and temper grade Outer diameter Minimum thickness in mm in mm Temper grade 1 4 6 35 0 028 0 70 3 8 9 52 0 028 0 70 Annealed 1 2 12 70 0 031 0 80 C1220T 0 5 8 15 88
41. ct Installation optional 19 fe Elek Ode TL RE 20 Selecting Refrigerant Piping cece eens 20 Heat Pump Applications x aanne anaaa 20 Heat Recovery Applications sanaan anaana 22 Identifying Branch Joints 24 Pipe Minimum Thickness and Temper Grade Based on Pipe Size 25 Storing Refrigerant Piping cece tees 26 Evacuating Refrigerant 26 Installing Refrigerant Piping anaana 26 OVErVIGW xN K NH N ac A Se AE re eA ad ada HN Ka NG 26 AA wie det eee Z T E eel ed gr Sand bee eae eg H ett 27 Nitrogen Flushing While Brazing cece eee 27 Flared Pipe Connections 28 Connecting Piping to the Outdoor Unit 0 000 eee eee 29 Connecting Branch Joints 00000 es 30 Refrigerant Piping Installation Examples Heat Pump 32 Refrigerant Piping Installation Examples Heat Recovery 35 Electrical WIRING e a AW AKDA eas a BIG DN PSA weed ae Es 4 5 37 Power Winning iee aaa se Gn ma pa UN dE we ea a e 39 VRF SVN34A EN 3 Grounding naan NG GE EE AO a PL LATA LA 42 Communications Wiring 000 ee eee 43 Leak Testing Pipe Connections 00 ccc ence eee eens 45 Vacuum Procedure for the System 47 Insulating Refrigerant Pipes 00 c cc cece cece nee teens 48 Refrigerant Charging ae MBA leeft kel ave e eed ANG eee Leek 49 Calculating Refrigerant 50 Charging Refrigerant 52 We AA AA 53
42. d instruction sheet Pipe installation sockets see Table 4 and Figure 5 Preparing for Installation Heat recovery Heat pump High pressure Socket Socket Model number Connection type Gas Liquid gas needed Gas Liquid needed Unit connection ATV 0072 6 ton 3 4 in 3 8 in 5 8 in No 3 4 in 3 8 in No Field connection Unit connection 1 1 8 in 1 2 in 7 8 in lin 1 2 in 4TV 0096 8 ton Yes Yes Field connection 7 8 in 3 8 in 3 4 in 7 8 in 3 8 in Unit connection 7 8 in lin 4TV 0120 10 ton 1 1 8 in 1 2 in Yes 1 2 in Yes Field connection 3 4 in 1 1 8 in Unit connection 5 8 in 1 1 8 in 4TV 0144 12 tonna 1 1 8 in Yes 1 1 8 in 1 2 in No Field connection 1 2 in 7 8 in a Cut socket as needed for 8 10 and 12 ton units Figure 5 Pipe installation sockets ae SS SCH ID7 8 in ID 1 1 8in ID3 8 in ID 5 8in ID3 4 in ID 1 in ID 1 2 in Table 5 shows optional accessories for outdoor units Table 5 Optional accessories Accessory Model number Specification 4YDK1509B0051A 51 MBH and below 4YDK2512B0138A Over 51 136 MBH 4YDK2812B0160A Over 136 154 MBH Y joint 4YDK2815B0240A Over 154 240 MBH 4YDK3419B0336A Over 240 336 MBH 4YDK4119B0468A Over 336 461 MBH 4YDK4422B0999A Over 461 MBH 4YDK1500B0080A 76 MBH and below Y joint 4YDK2500B0240A Over 76 240 MBH high p
43. e additional refrigerant to the pipe When installing outdoor units in module connect the manifold gauge to liquid side pipe and the gas side pipe Make sure that check valve is installed to prevent pump oil from flowing into the pipe Vacuum pressure must be checked with the vacuum gauge Check for gas leakage lt _ Vacuum destruction Apply nitrogen gas to the pipe at pressure of 7 25 psi 0 05 MPa Perform vacuum drying again Yes Pressure increase 47 Insulating Refrigerant Pipes Insulating Refrigerant Pipes After determining that there are no leaks in the refrigerant pipes insulate them as described 1 Use Table 27 to select the insulation thickness according to pipe size and humidity conditions Table 27 Pipe insulation selector Insulation Type Standard conditions High humidity conditions 86 F 30 C 85 86 F 30 C over 85 Pipe size EPDM or NBR Pipe in mm in mm 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 gt ka 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 springs or o
44. e pipes between branch joints and indoor units Refer to F in Figure 10 p 22 Table 13 Pipe size between the branch joint and indoor unit F Pipe size OD Liquid Gas Indoor unit capacity MBH in mm in mm Less than 20 1 4 6 35 1 2 12 70 24 52 3 8 9 52 5 8 15 88 68 78 3 8 9 52 3 4 19 05 78 96 3 8 9 52 7 8 22 22 Identifying Branch Joints Use Table 14 Table 15 and Table 16 to identify branch joint models Note High pressure Y joints are for heat recovery outdoor unit models only as noted in each 24 table Table 14 Branch joint between outdoor units C Branch joint between outdoor units C Model Y joint 4TDK3819B0000A High pressure gas Y joint for heat recovery models 4TDK3100B0000A Use Table 15 to select the first branch joint according to outdoor unit capacity Refer to D in Figure 9 p 20 heat pump or Figure 10 p 22 heat recovery Table 15 First branch joint according to outdoor unit capacity D Outdoor unit capacity First branch joint D ton Model 6 8 10 4YDK2512B0138A 12 4YDK2812B0160A Y joint 14 16 18 20 4YDK2815B0240A 22 24 26 28 4YDK3419B0336A 30 32 34 36 4YDK4119B0468A 6 4YDK1500B0080A High pressure gas Y joint for heat recovery models 8 20 4YDK2500B0240A 22 36 4YDK3100B0468A VRF SVN34A EN Refrigerant Piping Use Table 16 to select the branch joints
45. e service record paper placed outside the outdoor unit VRF SVN34A EN 61 Test Operation Table 40 Pre start checklist Have you checked whether the drain pipes of the indoor unit and outdoor unit are connected together Have you completed the drain test Is the drain pipe properly insulated Drain pipe Are the power cable and communication cable tightened firmly on the terminal board within the rated torque recommendations e Have you checked for cross connection of the power and communication cables e Have the outdoor unit been properly grounded Is shielded cable used for the communication cable Is the wire length within the recommended limit Is the wiring route correct Electrical Are the address of the indoor and outdoor units properly set Are the address of the indoor and outdoor units properly set when using multiple remote controllers Setting address Option Ensure that the isolation frame is correctly installed Test Operation Perform the test operation after all pre start checks have been completed See Pre Start Checks p 61 and within the following temperature conditions 50 122 40 104 E 30 86 E h 3 20 68 5 Cooling 5 10 50 Heating E 062 ta 7 8 10 14 iz 20 4 5 41 10 50 15 59 20 68 25 77 30 86 35 95 40 104 45 113 Outdoor t
46. ect refrigerant amount see Automatic refrigerant detection operation p 64 after the unit has been operating in cooling mode for at least 30 minutes e Cooling heating operation runs normally e Air flow direction and fan speed of indoor units runs normally e There are no abnormal operating noises from indoor or outdoor units e During cooling operation the indoor units drain properly 7 Use VRF Enterprise Management Software to check operating status details 8 Explain to the user how to use the indoor unit and leave indoor unit manual with the user for their reference Automatic refrigerant detection operation Automatic refrigerant detection operation Use the refrigerant amount detection operation after operating the product in cooling mode for at least 30 minutes e Ifthe unit operation cycle is unstable the refrigerant detection operation may end before it is completed e The refrigerant detection operation result may be inaccurate if Ifthe refrigerant detection operation is run after the unit has been shut down for a long period of time Ifthe unit installation environment causes the unit to trigger protection controls Start Press the K2 button 5 times rs NG input VRF Technicial Utilities signal C U D L Input VRF Auto Commissioning Tool signal U z NG y Satisfy the tempe
47. emperature C F Notes e During the test operation cooling heating modes are selected automatically e In the temperature range marked with hashed lines system protection control may trigger during operation If this occurs the test operation may be difficult to judge correctly e When the temperature is outside of the guaranteed range test operation accuracy of may decrease to the borderline area shown in the graph AWARNING Hazardous Voltage Rotating Components Do not operate the product with the panel or duct outlet protection net off There is risk of personal injury from parts that rotate or contain high voltage 62 VRF SVN34A EN VRF SVN34A EN Test Operation ACAUTION Risk of Burn or Frostbit Refrigerant pipe may be hot or cold during or right after the operation depending on the status of the refrigerant which flows through the refrigerant pipe compressor and other parts of the refrigerant cycle Do not touch the refrigerant pipe during or right after the operation to avoid getting burned our frostbit NOTICE Avoid Unit Damage Wait at least 5 minutes before turning off the main power after the inspection test is finished If you do not water leakage or other problems may occur Wait at least 6 hours after power is supplied to the outdoor unit before operating it to allow time for the crank case heater to pre heat If the crank case heater is not pre heated before operation unit parts
48. es the pipes the vibration of the compressor will be transferred to the pipes and can damage the power supply cables or pipes The damage could result in fire or explosion causing death or serious injury Follow this procedure 1 Refer to Table 24 and Table 25 p 41 for power cable and circuit breaker specifications Refer to Table 23 p 39 for conduit specifications 2 Cutthe power cable to an appropriate length and connect it to the terminals in the power supply box with a solderless ring terminal see Figure 23 p 40 Screw Tightening torque for terminal Power cable M4 0 9 1 1 Ibf ft 1 2 1 5 N m Single phase 208 230 V 460 V power cable M8 4 1 5 4 Ibf ft 5 5 7 3 N m Three phase 208 230 V 460 V power cable 3 If two cables are connected to one terminal place the cables back to back with the thin cable upward and the thick cable downward as shown in the detail in Figure 23 Secure the cable s with a cable tie and provide strain relief 5 Replace the cover on the terminal board Note Make sure that the section of the power supply cable that has the sheath removed is inside the power supply box If this is not possible connect the power cable conduit to the power supply box Table 23 Cable conduit specifications Name Flexible PVC conduit Temper grade PVC Application conditions If conduit is installed indoors and not exposed to outside elements embedded in concrete
49. face of the heat exchanger is sharp fmoving the unit with a crane fasten the wire rope as shown in the figure below To protect damage or scratches to the unit use a spreader bar If moving the unit with a forklift carefully insert forks into the forklift holes at the bottom of the outdoor unit Be careful with to avoid damaging the unit with the forklift Moving with a crane Wire cables Holes for wire cable h to pass through Spreader bars 12 Holes for wire cable to pass through Moving with a forklift Holes for inserting forklift VRF SVN34A EN Preparing for Installation Location Considerations VRF SVN34A EN Choose an installation location based on the following considerations Install the outdoor unit On a supporting structure that can bear the weight of the outdoor unit The supporting structure can be a base on the ground on a waterproof roof or in a pit With sufficient clearances around the unit for service and repairs On a flat surface that does not collect water In a well ventilated location Away from strong wind Away from direct exposure to rain or snow Where there is no risk of flammable gas leakage Where there is no exposure to salt machine oil sulfide gas or corrosive environmental conditions Away from sea breeze Note For seacoast applications block the unit from direct exposure to sea breeze by instal
50. ging in heating mode K 1 Blank Blank 2 Test operation in heating mode K 2 Blank Blank 3 Pump out in heating mode Outdoor unit address 1 K 3 Blank 1 4 Pump out in heating mode Outdoor unit address 2 K 3 Blank 2 5 Pump out in heating mode Outdoor unit address 3 K 3 Blank 3 6 Pump out in heating mode Outdoor unit address 4 K 3 Blank 4 7 Vacuuming Outdoor unit address 1 K 4 Blank 1 8 Vacuuming Outdoor unit address 2 K 4 Blank 2 9 Vacuuming Outdoor unit address 3 K 4 Blank 3 10 Vacuuming Outdoor unit address 4 K 4 Blank 4 11 Vacuuming All K 4 Blank A 12 End operation Table 36 Button K2 Number of times button K2 is pressed Operation 4 digit display 1 Refrigerant charging in cooling mode K 5 Blank Blank 2 Test operation in cooling mode K 6 Blank Blank 3 Pump down all units in cooling mode K 7 Blank Blank 4 Pipe inspection heat pump test operation K 8 Blank Blank 2 Checking the amount ofiretrigerant last digits BEA La on status 6 Discharge mode K A Blank Blank 7 Forced defrost K B Blank Blank 8 Forced oil collection K C Blank Blank 9 Inverter check compressor 1 K D Blank Blank 10 Inverter check for compressor 2 b K E Blank Blank 11 Inverter check for fan 1 b K F Blank Blank 12 Inverter check for fan 2 b K G Blank Blank 13 End operation
51. h Refer to A in Figure 13 p 32 Table 8 Outdoor unit main pipe size based on pipe length A Outdoor unit Main pipe size OD Main pipe size OD Capacity when pipe length is lt 295 3 ft 90 m when pipe length gt 295 3 ft 90 m Liquid Gas Liquid Gas Ton MBH in mm in mm in mm in mm 6 72 3 8 9 52 3 4 19 05 1 2 12 70 7 8 22 22 8 96 3 8 9 52 7 8 22 22 1 2 12 70 1 25 4 10 120 1 2 12 70 1 1 8 28 58 5 8 15 88 1 1 8 28 58 12 144 1 2 12 70 1 1 8 28 58 5 8 15 88 1 1 4 31 75 b 14 168 5 8 15 88 1 1 8 28 58 3 4 19 05 1 1 4 31 75 b 16 192 5 8 15 88 1 1 8 28 58 3 4 19 05 1 1 4 31 75 b 18 216 5 8 15 88 1 1 8 28 58 3 4 19 05 1 1 4 31 75 b 20 240 5 8 15 88 1 1 8 28 58 3 4 19 05 1 1 4 31 75 b 22 264 3 4 19 05 1 3 8 34 92 7 8 22 22 1 1 2 38 1 24 288 3 4 19 05 1 3 8 34 92 7 8 22 22 1 1 2 38 1 26 312 3 4 19 05 1 3 8 34 92 7 8 22 22 1 1 2 38 1 28 336 3 4 19 05 1 3 8 34 92 7 8 22 22 1 1 2 28 1 30 360 3 4 19 05 1 5 8 41 28 7 8 22 22 1 5 8 41 28 32 384 3 4 19 05 1 5 8 41 28 7 8 22 22 1 5 8 41 28 34 408 3 4 19 05 1 5 8 41 28 7 8 22 22 1 5 8 41 28 36 432 3 4 19 05 1 5 8 41 28 7 8 22 22 1 5 8 41 28 a If 1 25 4 pipe is not available on site use 1 1 8 28 58 pipe b If 1 1 4 31 75 pipe is not available on site use 1 3 8 34 92 pipe
52. he power connection from N phase if the PCB is not turned on Check for a short circuit between the communication terminal and ground Ensure that the pre start checklist Table 40 has been completed le 40 Pre start checklist Installation Have you checked the external surface and the inside of the outdoor unit Is there any possibility of short circuit due to the heat of an outdoor unit Outdoor unit e Is the place well ventilated and meets recommended requirements for clearances and service Is the outdoor unit installed securely to withstand the external force Have you checked the external surface and the inside of the indoor unit e Is there enough space for service e Have you ensured that the center of the indoor unit is installed horizontally and is level Indoor unit Refrigerant pipe Have you selected the correct pipes Are the liquid and gas valve open Is the total number of connected indoor units within the allowable range Are the length and the height difference between the refrigerant pipes within the allowable range e Are the branch joints properly installed e Has the connection of liquid and gas pipes been correctly performed e Have you selected correct insulator for pipes and insulated them correctly Is the pipe or connection part properly insulated Is the quantity of the additional refrigerant correctly weighed in You must record the amount of additional refrigerant charging on th
53. ht of the base plus the frame should be greater than the highest expected snowfall e If necessary has wire mesh or steel bars added to the concrete to prevent damages or cracks UU UU L L a Drain pit Vii Y WY Ground installation Base installation Surface of base must be horizontally level HC in 200 mm Yi Raised base Minimizing Vibration To minimize outdoor unit vibrations use a vibration minimizing structure such as an H beam frame a vibration isolation frame or an isolation pad thickness gt 1 in 20 mm The load bearing force of the structure must be 787 Ibf 3 5 kN SCH minimum ES in 50 mm minimum 8 in 200 mm Se EE FF a A A H beam frame on concrete supports 8 in 200 mm minimum l VRF SVN34A EN 15 Unit Installation After installing a vibration isolation frame loosen the bolts so that the isolators are capable of absorbing vibrations refer to the figure below Para Z m ALLA Ensure that bolts are loose d Z NR LZ EA LE Vibration isolation frame Water Management Recommendations If the outdoor unit base is on ground level construct a drainage pit around it to prevent the drain water from collecting near the unit e Use wire mesh or steel bar for constructing the drainage pit e Cons
54. 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 Thesystem 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 66 Exclusions from this Warranty include damage or failure arising from wear and tear corrosion 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 Compa
55. ipe between the first branch joint and the outdoor unit is increased by 1 size a b c d e f g x2 h i k l m n p gt 3281 ft 1000 m Each Y joint to each indoor unit h i j p lt 148 ft 45 m Difference between the distance of the outdoor unit to the farthest indoor unit and the nearest indoor unit and lt 148 ft 45 m a b c d e g p lt 148 ft 45 m Refrigerant Piping Installation Examples Heat Recovery VRF SVN34A EN Figure 19 Installation with Y joints Heat recovery FINE 4MCUCUY4NCE000 4MCUCUY4NCE000 4MCUCUY4NCE000 4MCUCUY4NCE000 Figure 20 Installation with MCU Heat recovery 4MCUCUY4NCE000 4MCUCUY4NCE000 35 Refrigerant Piping Figure 21 Installation with MCU and Y joint Heat recovery H1 aa 3 Table 22 Maximum allowable refrigerant piping length and height differences for heat recovery installations Maximum Piping location Outdoor unit to indoor unit Piping length and height differences Piping equivalent length 656 722 ft MCU only 200 220 m Notes Exa
56. iquid side a Scale Scale LO pipe Service valve Vacuum port Vacuum port Single installation Module installation 5 After charging the refrigerant close both caps as shown in the figure below e Tightening torque for refrigerant port cap 7 4 8 9 Ibf ft 10 12 N m e Tightening torque for control cap 14 8 18 4 Ibf ft e Opening closing torque for the valve gt 3 4 in 19 mmj 7 4 Ibf ft 10 N m Cap for the control part Cap for the refrigerant charging port 52 VRF SVN34A EN Control System Control System The control board Fig 28 contains a 4 digit display a DIP switch three rotary switches and four buttons as shown in Figure 30 Their functions are explained in this section AWARNING Hazardous Voltage Before making contact with the inverter circuit board wait for at least 15 minutes after powering down the outdoor unit to allow the unit to fully discharge high DC voltage Failure to allow the high DC voltage to discharge completely could result in death or serious injury Figure 30 Control board I af AE T ra 22 323 Sad Oy 000000808787 0000000000000 00 LEI sains o 1 A PRES VEH d BA BB Al ccc lg c00 H elea SW51 SW52 SW57 eee s s HHIH arne N Fes ONE ER NO NO NO I o D BOL A T X U U one O E ki K2 K3 ka poso
57. isabled factory default Compressor 1 malfunction state Compressor 2 malfunction state E560 will occur if all compressors are set to malfunction state Cooling capacity correction Main 44 6 48 2 7 9 factory default 41 44 6 5 7 48 2 51 8 9 11 50 53 6 10 12 51 8 55 6 11 13 53 6 57 2 12 14 55 4 59 13 15 Targeted evaporating temperature F C When low temperature value is set indoor unit discharged air temperature will decrease Heating capacity correction Main 435 1 3 0 factory default 362 6 2 5 377 1 2 6 391 6 2 7 406 1 2 8 420 6 2 9 449 6 3 1 464 1 3 2 478 6 3 3 Targeted high pressure psi MPa When low pressure value is set discharged air temperature of the indoor unit will decrease Current restriction rate Single 100 factory default 95 90 85 80 75 70 65 60 55 50 No restriction Enabling this setting may decrease cooling and heating performance Oil collecting interval Main Factory default D JO F HlO O O O O O O O O O O O O O O O O O D O O O O O O O O O oO HO H O o N ojal A wN el olo N A U B W N AO dl W BA WIN FH O N FH O rb Shortens interval by 1 2 Temperature for triggering defrost operation Main o o Disable snow prevention function f
58. ling the outdoor unit ODU behind a structure such as a building or a protective wall that is 1 5 times higher than the unit leaving 28 in 700 mm of space between the wall and unit for air circulation Consult an installation expert about taking anti corrosion measures such as removing salinity on the heat exchanger and applying a rust inhibitor more frequently than once a year ODU Sea breeze gt B opu Se Protection wall opu Sea breeze D i Sea breeze 5 Ge FF fat ODU Sea Sea ODU At least 9 84 ft 3 m away from equipment that generates electromagnetic waves Away from interfering sources such as radio computer and stereo equipment Far enough away from people living and working nearby so that hot discharge air or noise do not disturb them Away from inflammable materials Ensure that condensate water generated by the outdoor unit can drain smoothly away from the unit Install the power and communication cables in a separately installed enclosure If installing on a high place such as a roof a fence or guard rail should be installed around it to safeguard from falls If there is a potential for accumulated snow to block the air inlet or heat exchanger install the unit on a base higher than the highest possible snow accumulation 13 Preparing for Installation e R 410A refrigerant is a safe nontoxic and nonflammable refrige
59. ments 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 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 SVN34A EN Table of Contents Jude tele del EE 2 Warnings Cautions and Notices cece eee ee een tees 2 Important Environmental Concerns 0000 c ee eee 2 Important Responsible Refrigerant Practices 2 Model Number Description sssaaa nananana eraa 5 Preparing for Installation gg ECKE RECETTE RENE ENER EE 6 Unit Dimensions and Weight 0 00 e cece eee eee 6 Service Clearances cette 8 Outdoor Unit Combinations 9 AGESINN eier hg Een EE pag ALLAN ann 11 Moving the Outdoor Unit 0 c et ee 12 Location Considerations 0 0 cece ett 13 UNC Installation naaa cee ee Ween ees Ses wee aie KAG Ng E 15 Base Recommendations 15 Minimizing Vibration 15 Water Management Recommendations cece eee ees 16 Securing the Outdoor Unit anaana 17 Condenser Air Discharge Duct optional 00000 e eee eee 18 Wind Snow Prevention Du
60. mples a b c d e f g lt 256 722 ft 200 220 m Y joint and MCU a g m lt 656 722 ft 200 220 m ii bi MCU only a b c d e f g lt 3281 ft 1000 m allowable in piping Total piping length 3281 ft 1000 m y joint and mcu atb c d e f g p htitj k m lt 3281 ft length 1000 m Between outdoor Piping length 33 ft 10 m r lt 33 ft 10 m s lt 33 ft 10 m t lt 33 ft 10 m units module i nest installation GC PIPING 43 ft 13 m r lt 43 ft 13 m s lt 43 ft 13 m t lt 43 ft 13 m Outdoor unit to indoor 361 131 ft H1 lt 361 131 ft unit 110 40 m 5 110 40 m Maximum j i Indoor unit to indoor allowable unit 49 ft 15 m H2 lt 49 ft 15 m piping height cal le tf ee H PA U 4 a difference MCU to MCU Piping 49 ft 15 m H4 lt 49 ft 15 m aasa d S E eg Maximum MCU only 148 ft 45 m allowable First branch joint to length after farthest indoor unit 148 IS Y joint and MCU g m lt 148 ft 45 m branch joint 4EEVEVA24SA000 6 6 ft 2 m or less AEEVEVA32SA000 For 1 indoor unit 4EEVXDA24K132A Electronic re 4EEVXDA24K200A For 2 indoor units valve EEV indoor unit aa 4EEVXDA32K200A valve EEV eng 66 ft 20 m or kit c less 4EEVXDA24K232A GERA SOO For 3 indoor units 4EEVXDA32K224A 4EEVXDA32K300A a Equivalent piping length Y joint 1 64 ft 0 5 m dist
61. n 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 including the refrigerant pipes from the indoor unit to the service valves inside the outdoor unit the branch joints distribution header and connection points on each pipe Note For details on insulating branch joints refer to the branch joint installation manual VRF SVN41 Service valves e Overlap insulation to avoid gaps e Avoid compressing the insulation as much as possible 48 VRF SVN34A EN Refrigerant Charging 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 3 Clamp insulation tightly to the pipes Insulation Clamp Gas side pipe ga Liquid side pipe 4 Cut off excess insulation Refrigerant Charging AWARNING Hazard of Explosion and Deadly Gases Do not heat the refrigerant container to speed up the charging process An explosion could result resulting in death or serious injury NOTICE Risk of Unit Malfunction Do not leave the front panel open while charging refrige
62. nt systems observe all safety precautions e Leak test only one circuit at a time to minimize system exposure to potentially harmful moisture in the air e Use R 410A refrigerant gas as a tracer for leak detection and use oil pumped dry nitrogen to develop required test pressures e Use tools for R 410A to prevent the inflow of foreign substances and reduce the risk of high pressure e Do not remove the valve core of the charging port e Perform the leak test with the service valve of the outdoor unit closed 45 Leak Testing Pipe Connections Use the following procedure for leak testing pipe connections Refer to Figure 28 Figure 28 Leak testing pipe connections Heat pump Low pressure side Gei High pressure side KI a saka aa AO e m3 apay A S di i NA to MAA PIN Filling ports a gt NG d E z Be O G WA AY E e g F IN m BE cs 3 3 nag fi Gas pipe PA pn Ng N Heat recovery Low High pressure OJ pressure Late Ee Service valves ii UaboDIN High pressure gas pipe Filling ports Gas pipe Liquid pipe 1 Apply pressure to the liquid side pipe and gas side pipe when installing outdoor units in module with nitrogen gas at 4 1 MPa 594 6 psi 2 Keep it for minimum 24 hours to check if pressure drops After applying nitrogen gas check for a change in pressure using a press
63. nting the selected option appears for digits 1 and 2 See the Digit 1 and Digit 2 columns in Table 34 p 56 for the list of option numbers For example choose 01 on the main outdoor unit to select the cooling capacity correction option Digits 1 and 2 change to the number representing the selected option 3 To change the value for the option selected in Step 2 press K2 repeatedly for 1 second until the number representing the selected value appears for digits 3 and 4 See the Digit 3 and Digit 4 columns in Table 34 p 56 for the list of values For example if you select 01 for digits 1 and 2 and 04 for digits 3 and 4 the cooling capacity correction selection is 50 53 6 F 10 12 C gt Digits 3 and 4 change to the number representing the selected value 4 To save the value you have selected in Step 3 press and hold the K2 for 5 seconds The 4 digit display will blink as it enters tracking mode The selected value will be saved when the display returns to normal Note To the previous value instead of saving the selection press and hold K1 5 seconds To restore the factory default press and hold K4 while in the option setting mode VRF SVN34A EN 55 Control System Table 34 Options and corresponding settings Option Outdoor unit Digit 1 Digit Digit 2 3 g et Value Comments Emergency operation for compressor malfunction Single D
64. ny 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 PREVENTION 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 F
65. o determine the size of the main pipes A in Figure 10 p 22 based on pipe length Table 11 Outdoor unit main pipe size based on pipe length A Main pipe size OD Main pipe size OD Outdoor unit capacity when pipe length is lt 295 3 ft 90 m when pipe length gt 295 3 ft 90 m High High Liquid Gas pressure gas Liquid Gas pressure gas Ton MBH in mm in mm in mm in mm in mm in mm 6 72 3 8 9 52 3 4 19 05 5 8 22 22 1 2 12 70 3 4 25 4 5 8 22 22 8 96 3 8 9 52 7 8 22 22 3 4 25 4 1 2 12 70 7 8 22 22 3 4 25 4 10 120 1 2 12 70 1 1 8 28 58 7 8 22 22 5 8 15 88 1 1 8 28 58 7 8 22 22 12 144 1 2 12 70 1 1 8 28 58 7 8 22 22 5 8 15 88 1 1 8 28 58 7 8 22 22 14 168 5 8 15 88 1 1 8 28 58 7 8 22 22 3 4 19 05 1 1 8 28 58 7 8 22 22 16 192 5 8 15 88 1 1 8 28 58 1 1 8 28 58 3 4 19 05 1 1 8 28 58 1 1 8 28 58 18 216 5 8 15 88 1 1 8 28 58 1 1 8 28 58 3 4 19 05 1 1 8 28 58 1 1 8 28 58 20 240 5 8 15 88 1 1 8 28 58 1 1 8 28 58 3 4 19 05 1 1 8 28 58 1 1 8 28 58 22 264 3 4 19 05 1 3 8 34 92 1 1 8 28 58 7 8 22 22 1 3 8 34 92 1 1 8 28 58 24 288 3 4 19 05 1 3 8 34 92 1 1 8 28 58 7 8 22 22 1 3 8 34 92 1 1 8 28 58 26 312 3 4 19 05 1 3 8 34 92 1 1 8 28 58 7 8 22 22 1 3 8 34 92 1 1 8 28 58 28 336 3 4 19 05 1 3 8 34 92 1 1 8 28 5
66. rant However if there is a concern about a dangerous level of refrigerant concentration in the case of refrigerant leakage add extra ventilation e Avoid installing the outdoor unit where corrosive gases such as sulfur oxides ammonia and sulfurous gas are produced If unavoidable consult with an installation specialist about using a corrosion proof or anti rust additive to protect the unit coils e Apply corrosion protection and any other protective coatings to the unit as appropriate to the environment 14 VRF SVN34A EN Unit Installation Unit Installation Follow these guidelines for installing the outdoor unit Important The manufacturer is not responsible for damage incurred for installations that have not followed these guidelines The outdoor unit must be installed Ona horizontally level surface On a surface that is strong enough to support the unit and to minimize noise Base Recommendations A supporting base for the outdoor unit e Is typically made of concrete e Should typically be 1 5 times larger than the bottom of the outdoor unit However for installations that are subject to snow accumulation the base should be no larger than the bottom of the unit e Should be 8 in 200 mm or higher to protect the outdoor unit from rain water or other conditions that may cause damage to the unit Note The height of the base or if the unit is installed on a frame see Minimizing Vibration p 15 the heig
67. rant If the front panel is open the amount charged into the unit will be incorrect NOTICE Unit Component Damage Open the gas side and liquid side service valves completely after charging the refrigerant If you operate the unit with the service valves closed the unit may be damaged After vacuuming and leak testing the system charge the system with refrigerant as explained in the following procedure 1 Calculate the correct amount of refrigerant using Table 28 p 50 through Table 31 p 51 2 Open the liquid and gas service valves and add the liquid refrigerant making sure the refrigerant bottle is held in an upright position Use a scale to determine that the correct amount has been added Close the refrigerant container immediately after adding the refrigerant w VRF SVN34A EN 49 Refrigerant Charging Calculating Refrigerant Table 28 Initial refrigerant quantity for each outdoor unit model Model 4TV 0072 ATV 096 ATV 1L20 ATV 144 Initial refrigerant quantity Ib kg 12 1 5 5 16 3 7 4 16 3 7 4 19 2 8 7 Note Add the initial refrigerant quantity shown in this table to the refrigerant calculated in Table 29 through Table 31 p 51 Table 29 Refrigerant quantity according to liquid pipe diameter and length a nee BUERG 1 4 6 35 3 8 9 52 1 2 12 7 5 8 15 88 3 4 19 05
68. rature condition Satisfy the temperature condition y Detect amount of refrigerant Detect amount of refrigerant y Judge the amount of refrigerant D C lt J LO DO Cen IL LE L Ir LC L LI 1E z 1 Judge the amount of refrigerant 4 lt L U L U II Normal Normal Excessive Insufficient Judgment not amount of Excessive refrigerant Judgment not available Insufficient degree of supercooling Insufficient amount of refrigerant available End After the refrigerant detection operation is complete take the following actions e Ifthe amount of refrigerant is excessive discharge 5 of the detected amount and restart the refrigerant amount detection operation e If the amount of refrigerant is insufficient add 5 of the detected amount and restart the refrigerant amount detection operation e Ifthe degree of supercooling is insufficient add 10 of the detected amount of refrigerant and restart the refrig erant amount detection operation e Ifthe result is unavailable check that the refrigerant detection operation was executed within the guaranteed temperature range Perform a test operation to determine if there are any other problems with the system 64 VRF SVN34A EN
69. rect installation Incorrect installation Branch joint should be connected at the same or lower level as the refrigerant pipes leaving the outdoor unit Unit straight section should bez 12 in 300 mm 30 VRF SVN34A EN Refrigerant Piping Table 19 Connecting outdoor units with branch joints continued Correct installation Incorrect installation Branch joints between outdoor units must be installed horizontally TM 200 If the piping length between the outdoor lt M in 200 300 mm unit and the branch joint exceeds 6 56 ft z233 ta m 2 m install a vertical trap that is 8 12 in 200 300 mm high gt 6 56 ft 2 m VRF SVN34A EN 31 Refrigerant Piping Refrigerant Piping Installation Examples Heat Pump Figure 13 Single installation with Y joint Heat pump TIN Outdoor unit L Y joint a l E HG o O O AA NAAN CN
70. ressure gas for heat recovery units 4YDK3100B0468A Over 240 461 MBH 4YDK3800B0999A Over 461 MBH Y joint for outdoor unit 4TDK3819B0000A 456 MBH and below High pressure Y joint for outdoor unit 4TDK3100B0000A 456 MBH and below VRF SVN34A EN 11 Preparing for Installation Table 5 Optional accessories continued Accessory Model number Specification Distribution header Electronic expansion valve EEV kit 4H K2512B0159A 154 MBH and below for 4 rooms 4HIJK3115B0241A 240 MBH and below for 8 rooms 4HJK3819B0998A Over 240 MBH for 8 rooms 4EEVEVA24SA000 Below 12 MBH for 1 indoor unit 4EEVEVA32SA000 Over 18 MBH for 1 indoor unit 4EEVXDA24K132A 7 15 5 MBH for 2 indoor units 4EEVXDA24K200A 7 15 5 MBH for 2 indoor units 4EEVXDA32K200A 17 31 MBH for 2 indoor units 4EEVXDA24K232A 7 15 5 MBH for 3 indoor units 4EEVXDA24K300A 7 15 5 MBH for 3 indoor units 4EEVXDA32K224A 17 31 MBH for 3 indoor units 4EEVXDA32K300A 17 31 MBH for 3 indoor units a Required for indoor units that do not have internal EEVs Refer to the EEV kit installation guide VRF SVN43 for detailed information Moving the Outdoor Unit Follow these guidelines when moving the outdoor unit e Before moving the outdoor unit determine a path that can support its weight e Do not lay the unit on its side and do tip it more than 30 degrees e Take care to avoid injury while moving the unit the sur
71. rib ution header 3 28 ft 1 m MCU 3 28 ft 1 m b If the indoor unit is at a higher level than outdoor unit the allowable height difference is 131 ft 40 m If the indoor unit is located at a lower level than the outdoor unit the allowable height difference is 361 ft 110 m If the height difference exceeds 164 ft 50 m request engineering support from Trane c Required for indoor units that do not have built in EEVs Refer to the EEV kit installation guide VRF SVN43 for detailed information 36 VRF SVN34A EN Electrical Wiring Electrical Wiring VRF SVN34A EN Observe the following precautions when making electrical connections AWARNING 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 result 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 Multi pole circuit breaker or disconnect is required to fully isolate the unit from all power e Install circuit breakers disconnects in accordance with local and national codes e Select the power cable in accordance with relevant local
72. rigerant by following the guidelines established by the EPA Federal Clean Air Act or other state or local codes as appropriate After refrigerant removal use dry nitrogen to bring system back to atmospheric pressure before opening system for repairs Mixtures of refrigerants and air under pressure may become combustible in the presence of an ignition source leading to an explosion Excessive heat from soldering brazing or welding with refrigerant vapors present can form highly toxic gases and extremely corrosive acids NOTICE System Component Damage Do not remove the seal caps from refrigerant connections or open the service valves until prepared to braze refrigerant lines to the connections Excessive exposure to atmosphere 5 5 min may allow moisture or dirt to contaminate the system damaging valve seals and causing ice formation in system components Overview 1 Cut or extend field supplied piping as needed To extend pipes braze or using flared pipe connections not supplied Refer to Pipe Cutting p 27 Nitrogen Flushing While Brazing p 27 and Flared Pipe Connections p 28 Make sure that pipes are free of dirt debris and moisture and do not leak Refer to Leak Testing Pipe Connections p 45 Ng 26 VRF SVN34A EN Refrigerant Piping 3 Braze or use flared pipe connections to install piping Refer to Connecting Piping to the Pipe Cutting Outdoor Unit p 29 and to
73. s are installed SW51 1 SW52 2 Set at main outdoor unit only SW57 Use to set total number of connected MCUs Note For example if 3 MCUs are installed SW57 3 If 10 MCUs are installed SW57 A K5 Off Not used Default Off Enables maximum capacity restriction for cooling operation On Use to restrict excessive capacity increase when operating indoor units with small K6 capacity Off Disables maximum capacity restriction for cooling operation K7 On SW53 Use to set outdoor unit address No 1 main unit gt K8 On K7 On Use to set outdoor unit address No 2 sub unit 1 K8 Off K7 Off Use to set outdoor unit address No 3 sub unit 2 K8 On Ka on Not used K8 off a For illustration of switches refer to Figure 31 b For module installations one outdoor unit needs to be designated as the main unit The remaining outdoor units must be designated as sub units 54 VRF SVN34A EN Control System The control board has four buttons K1 K4 and a 4 digit display for configuring system options Figure 32 Buttons and 4 digit display on the outdoor unit control board Buttons 4 digit display K RKR K sms papo To set options 1 When the unitis not operating press and hold K2 5 seconds to enter the option setting mode The 4 digit display will appear as shown If compressor cut off is enabled digit 4 will be 1 or 2 2 To select a different option press K1 repeatedly until the number represe
74. s exceeds the indicated maximum capacity the cooling and heating capacity of the indoor unit may decrease You can connect a maximum of 64 indoor units to the outdoor unit The maximum quantity of connectable indoor units is 64 because the outdoor unit supports a maximum of 64 communication addresses If you choose to select outdoor unit combination other than the ones in Table 2 or Table 3 the total capacity of connected indoor units is allowed to be 50 130 of the outdoor unit capacity 0 5 x total outdoor unit capacity lt total connected indoor unit capacity lt 1 3 x total outdoor unit capacity Preparing for Installation Table2 Outdoor unit combinations 6 20 ton capacity Capacity 6 ton 8 ton 10 ton 12 ton 14 ton 16 ton 18 ton 20 ton e unit combination gryxqg72 x gryxoo96 L ps Z ren TWO Aa rrr TO erre tegen aTVKOZIEHHH 4TV 0240k Total number of individual outdoor units 1 1 1 E 2 2 2 2 4TV 0072 1 1 1 1 Combined 4TV 0096 1 1 outdoor unit 4TV 0120 1 1 2 4TV 0144 1 1 Nominal Cooling Btu h 72000 96000 120000 144000 168000 192000 216000 240000 Capacity Heating Btu h 81000 108000 135000 162000 189000 216000 243000 270000 Rated Cooling Btu h 69000 92000 114000 138000 161000 183000 207000 228000 Capacity Heating Btu h 77000 103000 129000 154000 180000 206000 231000 25
75. talling the duct Examples of condenser air discharge ducts If it is difficult to provide a minimum of 6 56 ft 2 m of space between the air outlet and nearby obstacles direct the discharge air horizontally from the fan Upper floor Discharge air Discharge air _Grille louvers Mechanical room 18 VRF SVN34A EN Unit Installation Wind Snow Prevention Duct Installation optional A wind snow prevention should be installed e In snowy regions to prevent snow from accumulating on the outdoor unit and the risk of accumulated frost which may interfere with normal heating operation e In windy regions such as near a sea shore to protect the unit from humid air Install the duct so that e The discharge air and prevailing wind are not going the same direction e The discharge air is not directed to the enclosed area e Height h of the frame or base should be higher than the heaviest expected snowfall VRF SVN34A EN 19 Refrigerant Piping Refrigerant Piping This section contains information on selecting storing and connecting refrigerant piping Selecting Refrigerant Piping Refrigerant piping diameter thickness and temper is selected according to length as specified in this section Notes e Useinsulated 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
76. the allowable grounding resistance is 30 500 Q Voltage to ground is 5 150V Figure 25 Outdoor unit grounding examples Grounding at the electrical panel Exclusive grounding terminal attached to a structure 42 VRF SVN34A EN Electrical Wiring Communications Wiring AWARNING 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 result in death or serious injury Connect the communications wiring as shown in Figure 26 e Refer to Table 23 p 39 for conduit specifications e Refer to BAS SVX51 for communication wiring specifications and best practices Notes e Ensure that more than 1 in 20 mm of the outer sheath of the power and communication cable conduit are inside the electrical component box e To reduce interference ensure that power and communication cables run in parallel or if crossing is necessary cross at 90 degrees e The communication cable between outdoor units and between indoor and outdoor units has no polarity Figure 26 Communications board and wiring terminals
77. tion duct VRF SVN34A EN Preparing for Installation Preparing for Installation Service Clearances Install units as shown in the illustrations below observing ventilation and service requirements Space requirements are based on cooling mode operation and an outdoor temperature of 95 F 35 C More space is required if the outdoor temperature is higher than 95 F 35 C or if the area is easily heated by solar radiation Figure 3 Minimum service clearances for single and multiple units ju S2 4 100 51 20 500 Example 1 Single unit inside pit EE S I 2 x N sa ISIS i Via I Front i gli 4 100 pa AB S 40001 1 B i alla 4 100 x a Example 3 Multiple units inside pit Example 4 Multiple units inside wall Notes 20 500 Units inches mm S1 Front service clearance S2 Back service clearance See Figure 4 p 9 for details UNI You may install multiple outdoor units with a minimum 1 in 20 mm of space between them but reduced capacity may occur depending on the installation environment 24 600 Clearance requirements are waived for any unit sides that have wind snow protec
78. tion ducts installed on them due to the wind snow protection duct size which exceeds clearance requirements 20 500 Example 5 Multiple units inside pit 8 VRF SVN34A EN Preparing for Installation Figure 4 Dimension limits for pit Note This figure refers to Figure 3 examples 1 3 5 kel E A a N 5 3 S IN A S S 5 o Uu gt VD ul o 2 T 1 h1 2 S2 h1 2 Front wall height recommendation 60 in 1500 mm maximum Back wall height recommendation 20 in 500 mm maximum Side wall height is unlimited If a wall exceeds the recommended height an additional clearance of half of the exceeded height should be added to the service clearance Clearances are given in Figure 3 p 8 S1 S2 hi h2 Front service clearance Back service clearance Wall height in excess of 60 in 1500 mm Wall height in excess of 20 in 500 mm Outdoor Unit Combinations VRF SVN34A EN Use the following table to determine the size and number of outdoor units needed to achieve the capacity requirements Follow these guidelines Make sure to use indoor units that are compatible with the outdoor unit The minimum capacity of an indoor unit is 7 5 MBH 7500 Btu h Indoor units can be connected within the ranges indicated in Table 2 and Table 3 If the total capacity of the connected indoor unit
79. truct the pit with a slope of 1 50 Figure 6 Water management for single unit installation Notes e Units inch mm e Refer to Table 7 for A and B q E sl a S z 5 91 150 3 94 100 lS E SI 2 3 37 w T 1 Vi Y LY le Lag BY YOW 1 X X X section G p x S gt 2 Drainage direction E slope 1 50 m 3 94 100 B je A CH Figure 7 Water management for multiple unit installation Notes e Units inch mm e Refer to Table 7 for A and B sO sapo so amp o SS o ec Ge E w E Ge a w 9 27 D 2 d NG O D ae Ze as Ze KOS DO Drainage direction slope 1 50 7 87 7 87 200 B Do B J 16 VRF SVN34A EN Securing the Outdoor Unit Secure the outdoor unit firmly to the base with anchor bolts see Figure 8 and Table 6 e Use zinc plated or stainless steel nuts and bolts e t must be able to withstand the wind speed of 67 mph 30 m s VRF SVN34A EN e Use a rubber washer between the bolt and the outdoor unit to prevent bimetallic corrosion e If you cannot attach the outdoor unit to the base secure it from the side or to an additional structure Unit Installation Figure 8 Bolt hole sizes and locations for mounting the outdoor unit Notes e Units inch mm e Refer to Table 7 for A and B e Refer to the blueprints in the te
80. ure regulator 3 Ifthe pressure drops check for gas leakage If the pressure is changed apply soap water to check for leakage and check the pressure of the nitrogen gas again 4 Maintain 145 psi 1 0 MPa of the pressure before performing vacuum drying and check for further gas leakage After checking the first gas leakage maintain 145 psi 1 0 MPa to check for further gas leakage 46 VRF SVN34A EN Vacuum Procedure for the System Vacuum Procedure for the System VRF SVN34A EN After performing a leak test follow this vacuum procedure Use tools for R 410A to prevent the inflow of foreign substances and resist against internal pressure Use a vacuum pump that allows vacuuming under 29 7 inH20 Use a vacuum pump with a check valve to prevent pump oil from flowing backward while the vacuum pump is stopped Completely close the liquid gas side service valve of the outdoor unit Connect the manifold gauge to the liquid side pipe and gas side pipe when installing outdoor units in module y Perform vacuum drying of the liquid side pipe and gas side pipe when installing outdoor units in module using a vacuum pump y While the vacuum gauge pressure is less than 29 7 inWC perform the vacuum drying for more than 1 hour and close the valve y After vacuum pump stops check whether the pressure is maintained within 29 7 inWC for an hour Over 29 7 in WC Charg
81. us injury AWARNING 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 Refrigerant Pipe Damage When performing a leak test use a pressure regulator to prevent an excess amount of nitrogen over 594 6 psi 4 1 MPa from entering the pipes If the pipe is filled with over the specified amount of nitrogen in a short time pipes may be damaged Notes e All required piping pressure tests must be completed in accordance with national and or local codes e When leak testing refrigera

Trane Variable Refrigerant Flow System Outdoor Unit Series Installation and Maintenance Manual

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