Trane R410a Installation Manual Download Page 5

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Table of Contents

PART-SVN234B-EN

Model Number Descriptions

. . . . . . . . . . . . . . 6

Overview

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Dimensional Data

. . . . . . . . . . . . . . . . . . . . . . . . 8

General Information

. . . . . . . . . . . . . . . . . . . . 17

POE Oil

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Oil Handling . . . . . . . . . . . . . . . . . . . . . . . 17
Oil Level . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Operating Envelope

. . . . . . . . . . . . . . . . . . . 17

Refrigerant Type . . . . . . . . . . . . . . . . . . . . 18

Transportation, Handling, and Storage

. . 18

Pre-Installation Inspections . . . . . . . . . . . 19

Repair Recommendations

. . . . . . . . . . . . . 20

Mechanical Failure . . . . . . . . . . . . . . . . . . 20

Electrical Failure

. . . . . . . . . . . . . . . . . . . . . . 21

Two Types of Motor Failures . . . . . . . . . 21

Removal and Installation

. . . . . . . . . . . . . . . . 22

Removal

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Compressor Replacement—Tandem and Trio

Compressor Sets . . . . . . . . . . . . . . . . . . . 23

Installation

. . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Electrical Connections

. . . . . . . . . . . . . . . . . 25

Leak Detection

. . . . . . . . . . . . . . . . . . . . . . . 26

Vacuum Testing and Evacuation

. . . . . . . . 27

Charging the System

. . . . . . . . . . . . . . . . . . 28

Verification Before Start-Up

. . . . . . . . . . . . 28

Startup

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Maintenance

. . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Troubleshooting

. . . . . . . . . . . . . . . . . . . . . . . . 31

182–361 Nominal Capacity Compressor Mo-

tor Protection Module Diagnosis . . . . . . 32

Log Sheet

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Replacement Scroll Compressors

. . . . . . . 34

Log Sheet for Installers  . . . . . . . . . . . . . .  34
Systems Check  . . . . . . . . . . . . . . . . . . . . .  35
Operating Controls Check  . . . . . . . . . . . .  35
Observations . . . . . . . . . . . . . . . . . . . . . . .  35

Summary of Contents for R410a

Page 1: ...dge 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 Model Numbers SFCOM090 4PSNAD SFCOM181 4PSNAD SFCOM300 4PSNAN SFCOM109 4PSNAD SFCOM182 4PSNAN SFCOM301 4PSNAN SFCOM121 4PSNA...

Page 2: ... in these service procedures In addition some states or municipalities may have additional requirements that must also be adhered to for responsible management of refrigerants Know the applicable laws and follow them WARNING 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 ...

Page 3: ...ld 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...

Page 4: ...N 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 Revision History Updated for Trane Technologies ...

Page 5: ...re 21 Two Types of Motor Failures 21 Removal and Installation 22 Removal 22 Compressor Replacement Tandem and Trio Compressor Sets 23 Installation 24 Electrical Connections 25 Leak Detection 26 Vacuum Testing and Evacuation 27 Charging the System 28 Verification Before Start Up 28 Startup 29 Maintenance 30 Troubleshooting 31 182 361 Nominal Capacity Compressor Mo tor Protection Module Diagnosis 32...

Page 6: ...h 115 230V Module 241 237 MBtu h 24V Module 300 298 MBtu h 115 230V Module 301 298 MBtu h 24V Module 360 359 MBtu h 115 230V Module 361 359 MBtu h 24V Module Digit 9 10 11 Electrical Code 230 200 230 60 3 460 460 60 3 575 575 60 3 Digit 12 Refrigerant 2 R 22 4 R 410A Digit 13 Lubricant M Mineral Oil P Polyolester POE Oil Digit 14 Connection Type R Rotolock S Stub Tube Digit 15 Motor Protection E E...

Page 7: ...SFCOM1455754PSNAD SFCOM145 5754AD SFCOM1452304PSNAD SFCOM145 2304AD SFCOM1454604PSNAD SFCOM145 4604AD SFCOM1565754PSNAD SFCOM156 5754AD SFCOM1562304PSNAD SFCOM156 2304AD SFCOM1564604PSNAD SFCOM156 4604AD SFCOM1815754PSNAD SFCOM181 5754AD SFCOM1812304PSNAD SFCOM181 2304AD SFCOM1814604PSNAD SFCOM181 4604AD SFCOM1825754PSNAN SFCOM182 5754AN SFCOM1832304PSNAN SFCOM183 2304AN SFCOM1822304PSNAN SFCOM182...

Page 8: ...ompressors APPLICATION SFCOM090 REFRIGERANT R410A U L RECOGNIZED USA CANADA RATED PERFORMANCE 45 130 20 15 CAPACITY MBTU HR 85 1 POWER INPUT KW 8 67 EER BTU W HR 9 82 Note Fittings and connection part descriptions are shown in Figure 13 and Figure 14 p 19 ...

Page 9: ...GERANT R410A R410A U L RECOGNIZED USA CANADA RATED PERFORMANCE 45 130 20 15 CAPACITY MBTU HR 101 0 117 1 POWER INPUT KW 10 15 11 58 EER BTU W HR 9 95 10 11 Dimensional Data PART SVN234B EN 9 Note Fittings and connection part descriptions are shown in Figure 13 and Figure 14 p 19 ...

Page 10: ...GERANT R410A U L RECOGNIZED USA CANADA RATED PERFORMANCE 45 130 20 15 CAPACITY MBTU HR 137 3 POWER INPUT KW 13 48 EER BTU W HR 10 18 Dimensional Data 10 PART SVN234B EN Note Fittings and connection part descriptions are shown in Figure 13 and Figure 14 p 19 ...

Page 11: ...GERANT R410A U L RECOGNIZED USA CANADA RATED PERFORMANCE 45 130 20 15 CAPACITY MBTU HR 158 2 POWER INPUT KW 15 33 EER BTU W HR 10 32 Dimensional Data PART SVN234B EN 11 Note Fittings and connection part descriptions are shown in Figure 13 and Figure 14 p 19 ...

Page 12: ...GERANT R410A U L RECOGNIZED USA CANADA RATED PERFORMANCE 45 130 20 15 CAPACITY MBTU HR 177 7 POWER INPUT KW 17 04 EER BTU W HR 10 43 Dimensional Data 12 PART SVN234B EN Note Fittings and connection part descriptions are shown in Figure 13 and Figure 14 p 19 ...

Page 13: ...L RECOGNIZED USA CANADA RATED PERFORMANCE 45 130 20 15 CAPACITY MBTU HR 176 2 176 2 POWER INPUT KW 17 36 17 36 EER BTU W HR 10 15 10 15 PROTECTION CONTROL MODULE VAC 115 230 24 Dimensional Data PART SVN234B EN 13 Note Fittings and connection part descriptions are shown in Figure 13 and Figure 14 p 19 ...

Page 14: ...L RECOGNIZED USA CANADA RATED PERFORMANCE 45 130 20 15 CAPACITY MBTU HR 237 4 237 4 POWER INPUT KW 23 46 23 46 EER BTU W HR 10 12 10 12 PROTECTION CONTROL MODULE VAC 115 230 24 Dimensional Data 14 PART SVN234B EN Note Fittings and connection part descriptions are shown in Figure 13 and Figure 14 p 19 ...

Page 15: ...L RECOGNIZED USA CANADA RATED PERFORMANCE 45 130 20 15 CAPACITY MBTU HR 298 2 298 2 POWER INPUT KW 29 75 29 75 EER BTU W HR 10 02 10 02 PROTECTION CONTROL MODULE VAC 115 230 24 Dimensional Data PART SVN234B EN 15 Note Fittings and connection part descriptions are shown in Figure 13 and Figure 14 p 19 ...

Page 16: ... L RECOGNIZED USA CANADA RATED PERFORMANCE 45 130 20 15 CAPACITY MBTU HR 358 9 358 9 POWER INPUT KW 36 10 36 10 EER BTU W HR 9 94 9 94 PROTECTION CONTROL MODULE VAC 115 230 24 Dimensional Data 16 PART SVN234B EN Note Fittings and connection part descriptions are shown in Figure 13 and Figure 14 p 19 ...

Page 17: ...le the oil POE Oil handling guidelines Always use the smallest container size required for the job requirements Always leave the oil container tightly sealed until time of use Do not reuse oil that has been opened Oil Level Figure 10 Compressor oil label The oil should be visible through the oil sightglass both during operation and when the compressor s is off Oil level slightly below the sightgla...

Page 18: ...nsported in the upside position dropped or tipped over could result in internal damage to the compressor and it is recommended that the compressor not be put into service Damage to compressor or packaging should be reported to the shipper immediately Use a proper method of lifting the compressor both lifting ears must be used with a spreader bar WARNING Heavy Objects Failure to follow instructions...

Page 19: ...l part number Compressor is the correct voltage Compressor ship with items Restrictors for use with tandem and trio compressors Oil equalizer Teflon gaskets WARNING R 410A Refrigerant under Higher Pressure than R 22 Failure to use proper equipment or components as described below could result in equipment failing and possibly exploding which could result in death serious injury or equipment damage...

Page 20: ...ssues and lead to compressor failure Cut the lines in a convenient place remove the compressor and then unbraze the lines from the compressor On reinstallation reinstall lines to compressor and reassemble the cut lines utilizing a slip coupling See Figure 16 for suggested area to cut the discharge and suction line Figure 16 Suggested areas to cut refrigerant lines Suggested area to cut the refrige...

Page 21: ...d compressors Reuse the compressor mounting isolators or mounting spacers that are used with the existing compressor assembly This type of failure requires changing both the suction and liquid line filter driers Use replaceable filter drier cores to facilitate changing filter driers if required Install the suction filters no closer than the distance listed in the table following Figure 17 The dist...

Page 22: ...Finish compressor and should be taken into account to properly and safely remove and install the compressor Each installation has its unique set of circumstances which must be considered by the service technician to perform a safe and successful compressor replacement Removal WARNING Pressurized Burning Fluid Failure to follow these instructions could result in death or serious injury Before openi...

Page 23: ...e special considerations that are unique to replacing compressors in a tandem or trio set 1 Only replace the failed compressor 2 On tandem or trio assemblies the suction and discharge lines must not be modified except for the use of slip joint couplings Other modifications may cause oil return issues and lead to compressor failure Cut the lines in a convenient place remove the compressor and then ...

Page 24: ...avoid oil spray while opening the compressor Keep exposure to the atmosphere at a minimum due to POE oil Remove the rubber plugs only when ready to install the compressor Plug other compressor on tandem or trio compressors Before removing the oil equalizer connection cap place a can pan under the Rotolock fitting as the compressor oil level is above the Rotolock connection Oil must be added to the...

Page 25: ...s still hot but below 900 F to shock off the flux If not cleaned off flux could hide leaks Tandem two compressors and trio combinations three compressors with uneven compressor combinations requires the use of restrictor s to balance the oil level in the compressor Refer to unit Installation Operation and Maintenance manual for proper size and location of the restrictor When brazing refrigerant co...

Page 26: ... Figure 21 090 181 nominal capacity wiring diagram Ensure that the compressor model terminals are installed on the correct terminals see Figure 21 Proper torque for the terminal screws is 25 in lb Note When equipped with terminal stud with a nut torque the nut to 30 2 in lb NOTICE Improper Power Phasing Operating the compressor with improper phasing could cause compressor failure Check phasing bef...

Page 27: ... leak After pressurizing the system use an R 410A leak detection device to detect and locate leaks Vacuum Testing and Evacuation Use the procedure as described in the unit Installation Operation and Maintenance manual If no other information is available use the following information WARNING Hazardous Voltage w Capacitors Failure to disconnect power and discharge capacitors before servicing could ...

Page 28: ...he unit is equipped with suction and discharge service valves close them during the charging procedure Water chiller units Always operate the chilled water pumps while charging the unit to prevent freezing the evaporator Verification Before Start Up Follow the instructions in the unit Installation Operation and Maintenance manual If there are no instructions available use these guidelines Beforest...

Page 29: ...overcharge the unit Recommended system full load superheats unless specified differently in the unit Installation Operation and Maintenance manual is 16 F 20 F Measure the oil sump superheat Oil sump superheat should be greater than 20 F Oil sump superheat is calculated as follows Oil Sump Superheat Oil Sump Temperature Saturated Suction Temperature Measure the oil sump temperature by placing a th...

Page 30: ...onditions System refrigerant charge level Oil levels and oil color WARNING Hazardous Voltage w Capacitors Failure to disconnect power and discharge capacitors before servicing could result in death or serious injury Disconnect all electric power including remote disconnects and discharge all motor start run capacitors before servicing Follow proper lockout tagout procedures to ensure the power can...

Page 31: ...he system are not open Four way reversing valve may be stuck and not switched properly bypassing from the high side to the low side of the system this situation is indicated by an extremely warm suction inlet to the compressor 360 361 nominal capacity compressors contain an internal pressure relief that may have opened It may take two to three hours to reset The oil sump will be very warm and the ...

Page 32: ...inted on compressor nameplate Unbalanced voltage must not exceed 2 imbalance MotorPTCthermistorresistance above 4500 ohmswill cause the motor protector to open The motor protector will reset at resistance below 2750 ohms A five minute time delay is active after cool down until the maximum number of auto reset cycles has been reached The module will then be locked out until it is manually reset NOT...

Page 33: ...esistance 2750 ohm Wait until the motor has cooled down and resistance is less than 2750 ohms reconnect and try to reset motor protector Diagnose problem that caused motor over temperature Resistance 150 ohms R 1250 ohms Normal resistance value for PTC ambient temperature Test the module within the terminal box 1 Disconnect L N voltage supply 2 Disconnect S1 S2 PTC circuit on the module 3 Disconne...

Page 34: ...ircuit 1 Circuit 2 Circuit 3 Circuit 4 Suction Pressure Saturation Temp Suction Line Temperature Suction Superheat 2 1 Discharge Pressure Discharge Line Temp Liquid Line Pressure Saturation Temp Liquid Line Temp Liquid Subcooling 6 7 Table 6 Electrical data Unit Voltage L1 L2 L2 L3 L1 L3 Table 7 Compressor Amperage Compressor 1 2 3 4 5 6 7 8 T1 amps T2 amps T3 amps Compressor Model 8 Digit Number ...

Page 35: ...ller pressure drop Not Applicable Log Sheet PART SVN234B EN 35 Systems Check Suction Line Filter Drier Installed Pressure Drop After 1 Hour PSIG After 4 Hours Liquid Line Filter Changed Oil Changed Acid Check If System Includes Liquid Line Solenoid Verify Proper Opening Closing Operating Controls Check Low Pressure Control High Pressure Control Contactor Replaced Checked Verify Proper Cycling of U...

Page 36: ...are committed to using environmentally conscious print practices Trane by Trane Technologies NYSE TT a global climate innovator creates comfortable energy efficient indoor environments for commercial and residential applications For more information please visit trane com or tranetechnologies com PART SVN234B EN 17 Aug 2020 Supersedes PART SVN234A EN Jan 2017 ...

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