Carrier 00EFN900003000A Air Conditioner User Manual
Contents
1. NOTE Throughout the Remote Cooler and Economizers Installation steps the two accessory package part no 00EFN900003000A 00EFN900003100A have been short ened to 3000A and 3100A When a specific part is referred to in each accessory s package the package no is mentioned fol lowed by the item no For item no identification and accessory package contents refer to Table 2 1 After removing the cooler from the base unit strip back the insulation on the cooler tube sheets if required and use the two large holes in the top corners for lifting 2 Transport the cooler and economizer assemblies to the new location and secure them into position Keep the economizer assemblies as close to the cooler as possible Also ensure there is sufficient room to install and remove cooler tubes from either end of the cooler See Fig 4A 4D for tube removal clearances NOTE The 30XA080 units do not utilize an economizer In this case keep the EXV as close to the cooler as possible 3 Install the accessory supplied economizer shutoff valves 3000A or 3100 Item 1 and liquid line shutoff valves 3000A or 3100A Item 2 on the two economizer lines and liquid lines at circuits A and B on the 30XA base unit See Fig 7 4 At the new cooler location connect the field supplied cooler liquid line piping between the factory installed manual shutoff valve at the two economizer assemblies and at the cooler See Fig 7 5 Following good piping2. 14 11 32 14 11 32 364 x 18 21 32 474 14 11 32 364 57 52 1 4 1447 1327 BOTTOM VIEW NOTES 1 Measurements are shown in inches millimeters 2 Recommended service clearance around the cooler is 36 in 914 mm 3 Recommended cooler tube removal area either end is 109 in 2769 mm Fig 4 30XA080 120 Cooler Dimensions 118 13 16 3017 52 1 4 1327 13 16 EM 20 23 23 1 32 d 685 DETAIL A SCALE 2 1 TYP 6 PLACES 52 1 4 1327 SIDE VIEW SEE DETAIL A 15 5 16 19 21 32 389 499 15 5 16 389 45 1 4 64 1625 1149 BOTTOM VIEW NOTES 1 Measurements are shown in inches millimeters 2 Recommended service clearance around the cooler is 36 in 914 mm 3 Recommended cooler tube removal area either end is 109 in 2769 mm Fig 4B 30XA140 160 Cooler Dimensions 6 119 9 32 3030 52 1 4 1327 ees 20 11 3 16 1 2 284 13 DETAIL A SCALE 2 1 TYP 6 PLACES SIDE VIEW SEE DETAIL A 18 3 8 18 3 8 22 11 16 466 466 576 1448 1327 BOTTOM VIEW NOTES 1 Measurements are shown in inches millimeters 2 Recommended service clearance around the cooler is 36 in 914 mm 3 Recommended cooler tube removal area either end for 30XA180 200 is 1093 2779 mm 4 Recommended cooler tube removal area e
3. Accessory supplied Compressor Flange Gasket 3100 Item 9 Loose Pipe Flange 3100 Item 11 Field supplied ASME B16 9 Stub End 4 in 102 mm Accessory supplied Compressor Flange Gasket 3100 Item 9 Loose Pipe Flange 3100 Item 11 Field supplied ASME B16 9 Stub End 4 in 102 mm Accessory supplied Compressor Flange Gasket 3100 Item 9 Loose Pipe Flange 3100A Item 11 Field supplied ASME B16 5 Class 600 Flange 4 in 102 mm Accessory supplied Compressor Flange Gasket 3100 Item 10 Field supplied ASME B16 5 Class 600 Flange 4 in 102 mm Accessory supplied Compressor Flange Gasket 8100 Item 10 Field supplied ASME B16 5 Class 600 Flange 4 in 102 mm Accessory supplied Compressor Flange Gasket 3100 Item 10 Field supplied ASME B16 5 Class 600 Flange 4 in 102 mm Accessory supplied Compressor Flange Gasket 3100 Item 10 Accessory supplied Flex Connector Flange 3100 Item 13 Flex Connector Flange O ring 3100A Item 8 Accessory supplied Flex Connector Flange 3100 Item 13 Flex Connector Flange O ring 3100A Item 8 Field supplied ASME B16 5 Class 600 Flange 4 in 102 mm Accessory supplied Compressor Flange Gasket 3100 Item 10 Field supplied ASME B16 5 Class 600 Flange 4 in 102 mm Accessory supplied Compressor Flange Gasket 3100 Item 10 LEGEND 3000A Accessory Package Part No OOEF
4. Plug one side of the electrical connectors of the EXV labeled cables into their corresponding EXV plugs Run the cables to the 30XA base unit and plug the other side of the cable connectors into their corresponding EXV leads Coil excess cables and wire tie in a convenient location To reconnect the flow switch cable use the accessory supplied cable assembly 3000A or 3100 Item 4 Take one cable assembly and label both ends with CWFS Plug one side of the electrical connector of the labeled cable into the flow switch plug Run the cable to the base unit and plug the other side of the cable connector into the flow switch lead Coil excess cables and wire tie in a convenient location 12 Using the accessory supplied M6 screws 3000 or 3100A Item 6 install the accessory supplied junction box 3000A or 3100A Item 5 at the desired location where the entering and leaving water thermistor cables can be conveniently spliced One or two knockouts can be used Follow all local codes Remove one knockout from the junction box and install the field supplied strain relief at the knockout hole If using field supplied conduit to provide mechanical protection to the thermistor wires between the cooler and the 30XA base unit remove another knockout To reconnect the thermistors locate the entering water thermistor and leaving water thermistor and cut both leads where they can be spliced in the installed junction box Cut str
5. 1 4 585 611 o 22 30 3 4 17 018 e 781 256 SIDE VIEW END VIEW SEE DETAIL 716 11 Q 2 1 4 6 83 4 7 8 9 UE mu 746 796 17 2 PLACES 4 0 7 16 11 12 TOP VIEW NOTES 1 Measurements are shown in inches millimeters 2 Recommended service clearance around the economizer is 36 in 914 mm Fig 5B 30XA180 350 Economizer Dimensions UMOUS 091 Or LYXOE epis 19j002 Buidid 191002 1 9 bi Buidid 1eddoo sesn g NID 7 Buidid 91 sesn y SALON 2 SANIWA JANYA HOLIMS AAOLNHS IVANY H3IVM Q3TIIHO v Linouio SHOLSIINH3H L CLNOO H31VM Q3TIIHO SNIAY31 V S35Nv1J Q3TIIHO SNIH3IIN3 2 SINIYA NOLLONS NOISNVdX3 H31005 2 OINOH LO3 T3 a LINDH D o D o e P 4 2 2 2 f f 471009 2 d 21102 22 1 ANWA 4 5 A44OLNHS 74 M TWANV c anon LINO H3ZINONOO3 GNI 12 1915 anon v Ano L 109 2100 H3onasNvuL 3NI1 3unssaud NOILONS H3ZIINONOO3 1nd uaonasNvul 3unssadd NOILONS Remote Cooler and Economizers Installa tion Install the cooler and economizers in a remote location by following this procedure
6. Flange 3000 Item 10 Flex Connector Flange O ring 3000 Item 13 Accessory supplied Flex Connector Flange 3100 Item 13 Flex Connector Flange O ring 3100 Item 8 Accessory supplied Flex Connector Flange 3100A Item 13 Flex Connector Flange O ring 3100 Item 8 Accessory supplied Flex Connector Flange 3100 Item 13 Flex Connector Flange O ring 3100 Item 8 Table 6 Materials Required for Steel Piping Flange Connections cont UNIT COOLER PIPE FLANGE CONNECTION FLEX CONNECTOR FLANGE CONNECTION SIZE Circuit B 280 300 325 350 Field supplied ASME B16 9 Stub End 4 in 102 mm Accessory supplied Compressor Flange Gasket 3100A Item 9 Loose Pipe Flange 3100A Item 11 Field supplied ASME B16 9 Stub End 4 in 102 mm Accessory supplied Compressor Flange Gasket 3100 Item 9 Loose Pipe Flange 3100A Item 11 Field supplied ASME B16 9 Stub End 4 in 102 mm Accessory supplied Compressor Flange Gasket 3100 Item 9 Loose Pipe Flange 3100A Item 11 Field supplied ASME B16 9 Stub End 4 in 102 mm Accessory supplied Compressor Flange Gasket 3100 Item 9 Loose Pipe Flange 3100A Item 11 Field supplied ASME B16 9 Stub End 4 in 102 mm Accessory supplied Compressor Flange Gasket 3100 Item 9 Loose Pipe Flange 3100 Item 11 Field supplied ASME B16 9 Stub End 4 in 102 mm
7. practices install additional field supplied liquid and economizer line piping in the required length to reconnect the two economizer assemblies to the 30XA base unit See Fig 8 for double suction riser con struction detail CAUTION Do NOT close both manual shutoff valves in one line Pressure can build up in the trapped area To avoid the possibility of personal injury or property damage the new liquid lines between the manual shutoff valves must each have field supplied and installed pressure relief valves 6 For 30XA080 120 all circuits and 30XA140 160 circuit B cut the suction pipe copper at the 30XA base unit and discard see Fig 6 cut 4 circuit B Following good piping practices install field supplied copper suction line piping from the 30XA base unit to the cooler Use the accessory supplied cooler pipe flange 3000A Item 8 cooler flange O ring 3000A Item 12 and loose pipe flange 3000A Item 11 to connect the field supplied copper suction line piping at the cooler See Fig 9 NOTE The original flanges on the cooler and cut from the 30XA base unit may still be usable However Carrier recom mends and has provided in the accessory kit parts necessary to replace both the cooler pipe flange and the suction flange When the extended piping is installed these flanges should be replaced 7 For 30XA140 160 circuit A and 30XA180 350 all circuits unbolt DO NOT CUT the portion of the steel
8. 0 1 19 1 11 11 8 260 13 5 15 8 1 1 1 280 13 8 15 8 13 T 11 300 13 15 1 11 11 325 15 8 15 8 15 8 1 1 350 15 8 15 s 15 11 1 Table 4B Refrigeration Line Sizes Sl soxa UNES em MM Pe Pe Pe m 080 090 22 100 22 110 22 10 gt 41 4t er om er gt 23 2 2 2 22 140 102 79 51 9 41 67 35 9 35 9 29 22 160 102 79 51 89 41 67 35 29 35 29 29 22 180 102 10 51 89 5 89 3 3 29 29 200 102 102 51 89 51 89 35 3 3 2 29 220 102 102 51 89 51 35 35 35 3 2 29 240 102 102 5 89 51 89 35 35 35 35 29 29 260 102 102 64 76 51 89 3 4t 835 29 29 280 102 102 64 76 5 89 4 35 41 35 2 29 300 102 102 64 76 51 89 4 3 4 835 2 29 325 29 350 29 Table 5 Cooler and Economizer Weights COOLER OPERATING ECONOMIZER WEIGHT Kc WEIGHT Circuit B oso 127 s 090 20 100 20 110 20 120 20 140 25 160 757 25 180 25 200 872 25 20 1980 5 2 60 27 240 923 60 7 2 260 32 2800 91 105 60 27 70 32 300 1 105 60 27 75 34 325 32 350 34 117 3 4 2991 13 16 20 1 2 13 DETAIL SCALE 2 1 6 PLACES 1327 SIDE VIEW SEE DETAIL A
9. 2 18 N D DUAL OD cu 1 cu 2 cu 3 cu 4 cu 5 2 1 D COOLER ENTERING WATER TEMP no su COOLER Op nen LEGEND DPT Discharge Pressure Transducer LWT Leaving Water Temperature OAT Outdoor Air Temperature SPT Suction Pressure Transducer Copyright 2007 Carrier Corporation WATER TEMP STRAIN RELIEF FIELD SUPPLIED ONDU FIELD JUNCTION BOX ACCESSORY SUPPLIED 5 WIRE CABLE ACCESSORY SUPPLIED IT UPPLIED Fig 14 Typical Junction Box Connections EWT and LWT Thermistors Shown Manufacturer reserves the right to discontinue or change at any time specifications or designs without notice and without incurring obligations Book 2 Catalog No 04 53300012 01 Tab 5c Printed in U S A Form 30XA 7SI Pg 16 3 07A 1 07 Replaces New
10. 30 080 350 Remote Cooler Accessory 60 Hz Installation Instructions Part Numbers OOEFN900003000A OOEFN900003100A CONTENTS SAFETY CONSIDERATIONS 1 GENERAL 1 3 INSTALLATION 4 16 Cooler and Economizer Removal 4 Remote Cooler and Economizer Installation 10 SAFETY CONSIDERATIONS Installing starting up and servicing air conditioning equipment can be hazardous due to system pressures electrical components and equipment location Only trained qualified installers and service technicians should install start up and service this equipment When working on air conditioning equipment observe precautions in the literature and on tags stickers and labels attached to the equipment Follow all safety codes Wear safety glasses and work gloves Use care in handling equipment A WARNING Be sure power to equipment is shut off before performing maintenance or service Lock out and safety tag all disconnects GENERAL The remote cooler accessory allows for the indoor reloca tion of the cooler on 30XA080 350 units as another means of freeze protection When the cooler is located in a heated space an anti freeze solution is not needed and the performance degradation associated with antifreeze solution can be avoided Maximum separation of the 30XA base unit and cooler is limited to 50 lineal ft 15 25 m or 75 equivalent ft 22 m of pipi
11. N900003000A 30XA080 200 3100A Accessory Package Part No OOEFN900003100A 30XA220 350 Item Item No See Table 2 Copper connection Table 7 Additional Refrigerant Charges Required LIQUID LINE Ib kg OF R 134a REFRIGERANT PER FOOT 305 mm SUCTION LINE Ib kg OF R 134a REFRIGERANT PER FOOT 305 mm LINE SIZE 13 PRESSURE RELIEF VALVES FIELD 30XA SUPPLIED ECONOMIZER LINE FLANGE MANUAL CONNECTION SHUTOFF VALVE m o m 8 LIQUID LINE gt ECONOMIZER 52 zr FLANGE 5 DS gt g d Or oz COOLER SUCTION LINE MANUAL SHUTOFF 4 m VALVE ECONOMIZER NOTE All shaded piping is field supplied and installed Fig 7 Line Piping and Connections 1 Circuit Shown LOOSE PIPE FLANGE ACCESSORY SUPPLIED L LIN FMR 3 gt TO 30XA e Ie O RING RED ACCESSORY SUPPLIED TEE s FROM ACCESSORY SUPPLIED COOLER gt 45 DEGREE 90 DEGREE STR ELLS STR ELLS LEGEND mm Tee TR ELLS Street Elbows Fig 9 Connect Copper Suction Line at the Cooler Fig 8 Double Suction Riser 30 080 120 All Circuits and Construction Detail 30XA140 160 Circuit B 14 FLEX CONNECTOR UNBOLT MOUNTING BRACKET Fig 10 Unbolt Portion Betw
12. a refrigerant may result in personal injury and equip ment damage If unsure about equipment consult the equipment manufacturer Table 1 Accessory Package Usage 30XA UNIT SIZE PACKAGE REQUIRED 080 200 OOEFN900003000A 220 350 OOEFN900003100A Manufacturer reserves the right to discontinue or change at any time specifications or designs without notice and without incurring obligations Printed in U S A Book 2 Catalog No 04 53300012 01 Tab 5 Form 30XA 7SI Pg 1 1 07 Replaces New Table 2 Accessory Package Contents ACCESSORY PACKAGE ITEM NO DESCRIPTION PART NO QTY gt Economizer shutoff valve 11 g in 29 mm 00PPGO000023501A 2 Liquid line shutoff valve 13 in 35 mm EP71BA393 2 200 ft 5 Wire jacketed cable RMO2EJ200 61 m 4 Cableassemby 320840464 5 HX30FZO00 6 Juntioboxcovr 382201 8 Coolerpipeflange 3t sin 79 mm O0PSN500091400A Transducer wiring harness 100 ft 30 5 m oa 00 900003000 00 500180500 5 Wire jacketed cable RMO2EJ200 em box cover 2 8 connector flange O ring 9 Compressor fange gasket 4 in 102 mm 00 56000011705 _ 00 900003100 Choose a space that support the weight of the cooler and economizer with service clearances and area fo
13. black wire and the white wire with the green wire Solder the splices and insulate them to prevent shorting Tighten the field supplied strain relief for the cables and secure the accessory supplied junction box cover 3000A or 3100A Item 6 with accessory supplied M6 screws Run the plug end of the accessory supplied transducer wire harness back to the cooler Connect SPTA plug into the circuit A transducer Connect plug into the circuit B transducer See Fig 13 Charge the unit to the amount of refrigerant as specified on the 30XA base unit nameplate Because of longer field installed liquid economizer and suction lines addi tional charge is needed Refer to Table 7 to calculate the additional charge for each circuit and then add it to the nameplate charge Additional charge for the economizer line is NOT required Perform all pre start up and start up procedures specified in the unit operation instructions Follow the checklist provided with the unit operation instructions Verify unit operation UNIT SIZE 140 160 180 200 220 240 260 Item Table 6 Materials Required for Steel Piping Flange Connections COOLER PIPE FLANGE CONNECTION Field supplied ASME B16 9 Stub End 4 in 102 mm Accessory supplied Compressor Flange Gasket 3000A Item 15 Loose Pipe Flange 3000 Item 11 Field supplied ASME B16 9 Stub End 4 in 102 mm Accessory supplied Co
14. e 2 for accessory package contents In addition to the parts supplied with each accessory package the following material must be field supplied Refrigerant grade liquid and suction line copper piping for 30 080 120 circuits A and B and 30XA140 160 circuit B length determined by installation See Tables 3A and 3B for pipe sizes Schedule 40 steel pipe for 30XA140 160 circuit A and 30XA180 350 circuits A and B length determined by installation See Tables 3A and 3B for pipe sizes 350 psig pressure relief valves and fittings 2 per circuit Suction line tubing insulation length determined by installation Economizer line tubing insulation length determined by installation lhin strain relief 2 Conduit length determined by installation ASME American Society of Mechanical Engineers B16 9 stub end 4 in 102 mm Schedule 40 Steel one needed for 30XA140 160 two needed for 30XA180 350 ASME 16 5 Class 600 pipe flange 4 in 102 mm with field modified extra mounting hole one needed for 30XA260 300 two needed for 325 350 Flange mounting hardware Extra flange gaskets if necessary A CAUTION The 30XA units use R 134a refrigerant No other refriger ant may be used in this system Suction tubing design pres sure is 220 psig 1517 kPa Economizer and liquid tubing design pressure is 350 psig 2413 kPa Failure to use gage set hoses and recovery systems designed to handle R 134
15. een Flex Connector and Cooler 30XA140 160 Circuit A and 30XA180 350 Circuits BLON N 28 172 215 9 7 718 200 EXISTING FLANGE ASME B16 9 STEEL STUB END eHOLES 105 1 EXTRA HOLE M16 FIELD SUPPLIED 30XA BASE UNIT NOTES 1 Measurements are shown in inches millimeters 2 Accessory supplied flanges and gaskets connecting to the flex connector extra hole has been factory drilled and tapped See ACCESSORY SUPPLIED Table 2 3000 Item 10 14 15 and 3100 Item 9 10 13 SEE TABLE 6 MOUNTING 3 Field supplied flanges and gaskets connecting to the flex connec BRACKET tor extra hole must be field drilled and tapped M16 i s i i 4 The extra hole allows a bolt to slide through and mount the flanges Fig 11 eed c the 30XA and gaskets of the suction line on a mounting bracket at the 30XA ase Unit Shown and Cooler base unit See Fig 10 and 11 30XA140 160 Circuit A and 30XA180 350 Circuits Fig 12 Flange and Gasket Mounting Locations 15 MAIN BASE BOARD Fig 13 Thermistor Connections J TD 1 J6 G3 ro 4 a s GP Opa EDE w SEP DPTB rn a e P SPTA CH 6 gt gt 04 a SEP gt gt 14 2 3 OUTSIDE i OS AIR TEMP OAT OL
16. ip and label both sides of the entering water thermistor lead EWT Cut strip and label the leaving water thermistor lead the same way with LWT on both sides See Fig 13 Run the labeled thermistor leads connected to the unit into the installed junction box and tighten the field supplied strain relief Strip back the lead Jackets to expose the two wires in each lead Take one of the accessory supplied 5 wire jacketed ca bles 3000A or 3100A Item 3 to connect the thermistor leads in the installed junction box to the cooler location Each wire in the jacketed cable is a different color Cut the cable into two pieces so that each has a maximum length of 100 ft 30 5 m Select one jacketed cable and strip back the jacket on both ends to expose the five wires Pick any two wires and label both ends of each wire EWT Pick another pair of wires and label both ends LWT The fifth wire is not used See Fig 14 Run one end of the accessory supplied 5 wire jacketed cable into the installed junction box and splice the identi cally labeled thermistor leads Solder the splices and insu late them to prevent shorting Tighten the field supplied strain relief for the cables Run the other end of the accessory supplied 5 wire jacketed cables back to the cooler Splice the labeled jacketed cable wires to the matching thermistors If a second junction box is necessary at the cooler location use the sec
17. ither end for 30XA220 240 is 1085 in 2758 mm Fig 4C 30XA180 240 Cooler Dimensions 118 5 32 3002 13 16 20 1 2 13 11 716 3 689 o 290 689 DETAIL SCALE 1 1 52 9 32 TYP 6 PLACES 1328 SIDE VIEW SEE DETAIL A 20 11 32 20 11 32 16 3 8 516 516 16 3 8 416 24 21 32 416 20 11 32 626 516 52 1 4 57 1327 1448 BOTTOM VIEW NOTES 1 Measurements are shown in inches millimeters 2 Recommended service clearance around the cooler is 36 in 914 mm 3 Recommended cooler tube removal area either end for 30XA260 300 is 1883 in 4784 mm 4 Recommended cooler tube removal area either end for 30XA325 350 is 23221 2 5910 mm Fig 4D 30XA260 350 Cooler Dimensions 7 d 22 7 8 23 1 2 581 598 30 3 8 L zz 200 SIDE VIEW END VIEW 7h6 11 SEE DETAIL A 7 8 6 1 2 21 166 1 5 8 29 3 8 17 2x 7 16 11 746 7 16 12 DETAIL A TOP VIEW SCALE 1 1 2 PLACES NOTES 1 Measurements are shown in inches millimeters 2 Recommended service clearance around the economizer is 36 in 914 mm Fig 5A 30XA090 160 Economizer Dimensions F S jd 23 1 32 z 24
18. mpressor Flange Gasket 3000 Item 15 Loose Pipe Flange 3000 11 Field supplied ASME B16 9 Stub End 4 in 102 mm Accessory supplied Compressor Flange Gasket 3000 Item 15 Loose Pipe Flange 3000 Item 11 Field supplied ASME B16 9 Stub End 4 in 102 mm Accessory supplied Compressor Flange Gasket 3000 Item 15 Loose Pipe Flange 3000 Item 11 Field supplied ASME B16 9 Stub End 4 in 102 mm Accessory supplied Compressor Flange Gasket 3100A Item 9 Loose Pipe Flange 3100 Item 11 Field supplied ASME B16 9 Stub End 4 in 102 mm Accessory supplied Compressor Flange Gasket 3100 Item 9 Loose Pipe Flange 3100 Item 11 Field supplied ASME B16 9 Stub End 4 in 102 mm Accessory supplied Compressor Flange Gasket 3100 Item 9 Loose Pipe Flange 3100 Item 11 LEGEND 3000A Accessory Package Part No OOEFN900003000A 30XA080 200 3100A Accessory Package Part No OOEFN900003100A 30XA220 350 No See Table 2 Copper connection Field supplied ASME B16 9 Stub End 4 in 102 mm Accessory supplied Compressor Flange Gasket 3000 Item 15 Loose Pipe Flange 3000A Item 11 Field supplied ASME B16 9 Stub End 4 in 102 mm Accessory supplied Compressor Flange Gasket 3000A Item 15 Loose Pipe Flange 3000A Item 11 Field supplied ASME B16 9 Stub End 4 in 102 mm Accesso
19. ng For more information refer to the Carrier Piping De sign manual The liquid and economizer lines between the exterior installed unit and the remote interior installed cooler must have pressure relief devices installed in accordance with ASHRAE 15 American Society of Heating Refrigeration and Air Conditioning Engineers and local codes Units to be modified for a remote cooler application must have the following options Factory installed suction service valve option e Condenser coil type Aluminum fin and copper tube Pre coat aluminum fin and copper tube E coat aluminum fin and copper tube Copper fin and copper tube E coat copper fin and copper tube NOTE The microchannel heat exchanger option can NOT use the remote cooler accessory application 1 limited to the following constraints Operating chilled water temperature is between 40 and 55 F 4 4 and 12 8 C When the remote cooler 15 applied the cooler heaters will not function so it is critical to maintain the water temperature above the freezing point at all times If the water temperature falls below the freezing point the cooler does not have protection to keep the water from freezing The interior space temperature where the cooler will be installed must be maintained at a minimum of 50 F 10 C Underground refrigerant piping is NOT permitted for this application See Table 1 for accessory package usage and see Tabl
20. nstructed with U bends or street elbows a substantial amount of oil can be trapped in the U bend during prolonged minimum load operation If this occurs additional oil is needed to add to the system to prevent the oil level from dropping below the minimum level in the oil separator Add 1 gallon of oil to each circuit Refer to Controls Start up Operation Service and Troubleshooting Guide for recommended oil type Table 3A Refrigeration Piping and Connections Material English PIPE SIZE in MATERIAL 5 7 8 11 8 13 8 15 8 21 8 25 8 31 8 2 21 2 3 31 2 4 Refrigeration copper Schedule 40 Steel Table 3B Refrigeration Piping and Connections Material SI MATERIAL Refrigeration copper Schedule 40 Steel PIPE SIZE mm 16 22 29 35 41 54 67 79 51 64 76 89 102 INDOOR LOCATION LEGEND Liquid Line Economizer Line Suction Line Fig 1 30XA Unit and Cooler Level Piping Parallel Single Circuit Shown INDOOR LOCATION SUCTION SERVICE VALVE LEGEND Liquid Line Economizer Line Suction Line INDOOR LOCATION LEGEND siecle Liquid Line Economizer Line Suction Line SUCTION i SERVICE VALVE et Fig 3 30XA Unit with Cooler Located Below Unit Single Circuit Shown 3 INSTALLATION WARNING Shut off all power to this equipment prior to installation There may be more than one disconnect swi
21. ond accessory supplied junction box 3000A or 3100A Item 5 Reinstall the thermistors in the correct cooler wells 11 20 21 22 23 24 25 26 27 To reconnect the suction pressure transducers SPT locate the SPT plugs for circuits A and B and cut the leads where they can be conveniently spliced in the installed junction box at the 30XA base unit Label the leads SPTA for the circuit A lead and for the circuit B lead Take the two pieces of accessory supplied transducer wire harness 3000A Item 16 or 3100A Item 14 One side of the harness is a plug and the other side is three wires in red black and green Label both sides of one harness SPTA and label the other harness SPTB Remove one knockout from an installed junction box and install a field supplied strain relief valve at the knockout hole If using field supplied conduit to provide mechani cal protection to the transducer wires between the cooler and the 30XA base unit remove another knockout Run the labeled transducer leads connected to the unit into the installed junction box at the 30XA base unit and tighten the field supplied strain relief Strip back the lead jackets to expose the three wires black red and white Run the lead end of accessory supplied transducer wire harnesses into the junction box and splice the identically labeled leads The red wire should go with red wire the black wire with the
22. r refrigerant piping Field supplied piping must be limited to less than 50 lineal ft 15 25 m or 75 equivalent ft 22 m in length Suction and liquid line risers must be limited to less than 15 ft 4 5 m vertical riser elevation Suction lines and economizer lines must be insulated to prevent condensation Relocating the cooler introduces minimal line losses if correct piping practices are followed Buried lines are not permitted The remote cooler system can be applied in three different configurations See Fig 1 3 In Fig 1 the remote cooler and the outdoor unit are at the same elevation The suction liquid and economizer lines run parallel between the cooler and the outdoor unit In Fig 2 the outdoor unit and remote cooler are at the same elevation but the interconnecting piping has an ele vation of up to 15 ft 4 5 m above the base elevation of the cooler This could be result of running piping over a wall or through the ceiling in a building In Fig 3 the remote cooler is located below the outdoor unit The interconnecting piping has an elevation of up to 15 ft 4 5 m above the base elevation of the remote cooler This could occur if the remote cooler is in stalled in a basement NOTE Unit 30XA refrigeration piping can be either copper tubing or steel tubing with flanged connections All units are factory charged with compressor oil to the required level However when the double riser is co
23. rom the chilled water flow switch located on the leaving water nozzle See Fig 6 5 Disconnect the suction pressure transducer cables from the transducers Make sure to label cables as they are removed See Fig 6 NOTE The suction pressure transducers SPT do not neces sarily need to be removed However use care in protecting the SPTs throughout the removal and remote installation processes as the SPTs are an important part of the remote installation 6 Disconnect the electronic expansion valve EXV cables from the EXVs at each economizer Make sure to label cables as they are removed See Fig 6 NOTE The 30XA080 units do not utilize an economizer In this case only the EXVs are present 7 Unbolt the cooler suction flanges from the cooler Tempo rary supports may be needed to support the suction pipes See Fig 6 8 At each circuit s economizer cut the liquid lines going to the economizer assembly before the manual shutoff valve see Fig 6 cut 1 circuits A and B Cut the cooler liquid lines between the manual shutoff valve and the cooler see Fig 6 cut 2 circuits A and B Cut the economizer lines between the manual shutoff valve and the sensors see Fig 6 cut 3 circuits A and 9 Remove the screws from the feet of each economizer Save all of the screws Remove the economizers by care fully sliding them out the cooler side of the unit 10 Remove the screws from the cooler feet Save all of the
24. ry supplied Compressor Flange Gasket 3100A Item 9 Loose Pipe Flange 3100A Item 12 Field supplied ASME B16 9 Stub End 4 in 102 mm Accessory supplied Compressor Flange Gasket 3100A Item 9 Loose Pipe Flange 3100A Item 11 Field supplied ASME B16 9 Stub End 4 in 102 mm Accessory supplied Compressor Flange Gasket 3100A Item 9 Loose Pipe Flange 3100A Item 12 12 FLEX CONNECTOR FLANGE CONNECTION Circuit A Accessory supplied Flex Connector Flange 3000 Item 10 Flex Connector Flange O ring 3000A Item 13 Accessory supplied Flex Connector Flange 3000 Item 10 Flex Connector Flange O ring 3000 Item 13 Accessory supplied Flex Connector Flange 3000 Item 10 Flex Connector Flange O ring 3000 Item 13 Accessory supplied Flex Connector Flange 3000 Item 10 Flex Connector Flange O ring 3000 Item 13 Accessory supplied Flex Connector Flange 3100 Item 13 Flex Connector Flange O ring 3100 Item 8 Accessory supplied Flex Connector Flange 3100 Item 13 Flex Connector Flange O ring 3100 Item 8 Field supplied ASME B16 5 Class 600 Flange 4 in 102 mm Accessory supplied Compressor Flange Gasket 3100 Item 10 Circuit B N A N A Accessory supplied Flex Connector Flange 3000 Item 10 Flex Connector Flange O ring 3000 Item 13 Accessory supplied Flex Connector
25. screws Slide the cooler slightly to the left to clear the refrigerant tubing 11 Remove the cooler by carefully sliding the cooler out the cooler side of the unit A CAUTION Because 30XA systems use polyolester oil which can ab sorb moisture it is important to minimize the amount of time that the refrigeration system is left exposed to the at mosphere Minimizing the exposure time will reduce the amount of moisture that could possibly damage the unit The removal instructions minimize the exposure time to prevent this type of damage The remote installation in structions outline a dehydration process to counteract any exposure that might have occurred A CAUTION Before installation of the field supplied piping the piping must be thoroughly cleaned and free of dirt debris oil and welding residue Presence of these objects will cause severe damage to the compressors or other components of the re frigeration system Table 4A Refrigeration Line Sizes English one ae co SIZE Circuit A Circuit B Circuit A Circuit B Circuit A Circuit B dn 080 11 8 11 8 11 8 090 11 8 11 11 a a 100 11 8 17 8 17 8 la la 110 11 11 11 7 8 7 8 120 11 11 11 7 8 7 8 140 17 8 13 5 11 1 7 160 11 1 17 17 7a 180 13 8 13 13 T 11 200 13 8 13 13 11 11 220 13 13 13 1178 11 24
26. suction pipes that connected the flex connector flanges to the cooler at the 30XA base unit and discard See Fig 10 Refer to Table 6 for parts required field supplied or accessory supplied to make new connections at the 10 10 cooler and the 30XA base unit with the field supplied steel suction line See Fig 11 Follow good piping practices to install field supplied steel suction line piping between the cooler and the flex connector at the 30XA base unit When field supplied flanges and gaskets are used an extra M16 mounting hole must be drilled and tapped to connect a mounting bracket at the 30XA base unit See Fig 10 and 11 for mounting bracket placement See Fig 12 for mounting hole locations If additional gaskets are needed for installation they must be 1 16 in non asbestos fiber with synthetic rubber binder compressed gasket sheet An extra mounting hole also needs to be field modified for any additional gaskets See Fig 12 for mounting hole locations Field supplied mounting nuts and bolts are also needed for field supplied gaskets Allofthe piping connections are now complete Leak test the unit and then pull a deep dehydration vacuum Con nect the vacuum pump to the high flow access fitting at the bottom of the cooler the liquid line service valves and the economizer line service valves For best results it is recommended that a vacuum of at least 500 microns 0 5 mm Hg be obtained To perform a standing vac
27. tch Tag all disconnect locations to alert others not to restore power until work is completed Failure to disconnect power from equipment prior to installation could result serious personal injury or death 1 Inspect package contents for missing or damaged parts File a claim with the shipping agency if parts are damaged and notify your local Carrier representative if any item is missing 2 Determine the new location for the cooler Ensure that the new location supports the cooler and economizers weights and that there is enough room for service access and tube removal See Tables 4A and 4B to determine refrigeration line sizes See Table 5 for cooler and economizers weights See Fig 4A 5B for cooler and economizers dimensions tube removal clearances and service areas 3 Open and tag all electrical disconnects Cooler and Economizer Removal The cooler and economizers are accessible from the cooler side of the unit To remove the cooler and economizers from the unit complete the following steps 1 Remove refrigerant from all circuits using standard refrigeration practices Refer to unit nameplate or installa tion instructions for refrigerant quantities 2 Disconnect the cooler heater wiring and conduit if equipped 3 Remove entering and leaving chilled water temperature thermistors Make sure to label thermistors as they are removed See Fig 6 4 Disconnect and label the chilled water flow switch cable f
28. uum rise test observe the rate of rise of the vacuum in the system If the vacuum rises by more than 50 microns in a 30 minute time period then continue the dehydration process until the standing vacuum requirement 18 met This will ensure a dry system By following this dehydration procedure the amount of moisture present in the system will be minimized and the factory supplied filter driers will provide adequate moisture protection It is highly recommended that the filter drier cores be replaced after 24 hours of operation This is to ensure that any foreign debris that is captured during start up is removed from the system Additional moisture removal capacity is also provided After setup is leak tested and deep dehydration vacuum 1s completed install field supplied suction and economizer line insulation between the economizer and the unit If necessary reinstall the insulation on the cooler head To reconnect the EXV cables use the accessory supplied cable assemblies 3000A or 3100 Item 4 Two cables are needed for the 30XA080 unit and four cables are needed for 30XA090 350 units Take one cable assembly and label both ends with EXV A for the circuit A main EXV Then label another three cable assemblies the same way with ECEXV P for the circuit main EXV circuit A economizer EXV circuit economizer EXV respectively economizer EXV does not apply to 30XA080 units
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