Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.Catalog No. 04-53300076-01 Printed in U.S.A. Form 30RAP-9SI Pg 1 12-11 Replaces: 30RAP-3SI

Installation InstructionsPart No. 30RA-900---057 and 30RA-900---060

SAFETY CONSIDERATIONSInstallation of this accessory can be hazardous due to sys-

tem pressures, electrical components, and equipment location(such as a roof or elevated structure).

Only trained, qualified installers and service techniciansshould install, start up, and service this equipment.

When installing this accessory, observe precautions in theliterature and on any labels attached to the equipment, and allother safety precautions that may apply.• Follow all safety codes.• Wear safety glasses and work gloves.• Use care in handling and installing this accessory.

GENERALThe remote cooler mounting accessory permits indoor relo-

cation of the cooler from 30RAP units up to 50 ft of pipingaway from the base unit with a maximum cooler elevationabove the condensing section of 15 ft. Relocating the cooler in-troduces minimal line losses if correct piping practices are fol-lowed. See Tables 1 and 2 for accessory package usage andcontents.

In addition to the parts supplied with the accessory package,the following material must be field-supplied:• refrigerant grade liquid, hot gas bypass, and suction line

piping (length determined by installation)• water piping and fittings• suction and water line tubing insulation (length deter-

mined by installation)• electrical conduit (length determined by installation)• assorted refrigerant grade fittings according to site

requirements (elbows, tees, etc.) • 90 C appliance wire, 16 gage (length determined by

installation).

INSTALLATIONPerform the following to install the remote cooler mounting

accessory:1. Inspect package contents for any missing or damaged

parts. File a claim with the shipping agency if parts aredamaged. Notify your Carrier representative if anyitem is missing.

2. Recover holding charge or refrigerant charge from all cir-cuits using standard refrigeration practices before cuttingany refrigerant lines.

3. Disconnect water lines, thermistors, flow switch, EXV(electronic expansion valve) cable(s) and cooler heaterwiring.

4. Cut suction, liquid and hot gas bypass (if equipped) linesin area shown in Fig. 1-4. Remove cooler (evaporator/EXV) assembly from unit.

5. Install cooler (evaporator) in suitable location. Carefullynote refrigerant and water connections. Cooler must beinstalled with plates vertical as shown in Fig. 2 and 4. For070-150, reposition filter drier as necessary.

6. Install cooler heater (if necessary). If cooler will be locat-ed in an area with ambient temperatures above 40 F or ap-plied with fluid suitably treated for antifreeze protection,then the cooler heater is not required.

7. Insulate cooler with original insulation or suitable alterna-tive if needed. Removal of insulation is notrecommended.

8. Remove water strainer from unit and reinstall in new wa-ter inlet piping within 10 ft of the cooler. Install remainderof water piping.

9. Install entering and leaving water thermister wells (in-cluded in kit). Thermistors should be located within 1 ftof the cooler inlet and outlet.

10. Install a fitting for the flow switch. Flow switch should beinstalled within at least 2 pipe diameters of straight tubein front of and behind switch. Flow switch should be in-stalled near cooler. Piping containing switch should be nosmaller in diameter than field-supplied water lines. Re-move water flow switch from the unit and reinstall in newpiping. Route extension cable from the flow switch to theunit and plug it into the flow switch cable assembly,which was previously disconnected. Coil excess cableand wire tie in a convenient location.

WARNING

Electrical shock can cause personal injury and death. Shutoff all power to this equipment during installation. Theremay be more than one disconnect switch. Tag all discon-nect locations to alert others not to restore power until workis completed.

CAUTION

This system uses R-410A, which has higher pressures thanR-22 and other refrigerants. No other refrigerant may beused in this system. Suction tubing design pressure is445 psig (3068 kPa) and liquid tubing design pressureis 656 psig (4522 kPa). Failure to use gage set, hoses,and recovery systems designed to handle R-410Arefrigerant may result in personal injury and equipmentdamage. If unsure about equipment, consult the equipmentmanufacturer.

IMPORTANT: Circuit A liquid line is on the lower rightcorner, circuit B liquid line is on the lower left corner.

30RAP010-150Remote Cooler

Mounting Accessory

2

Table 1 — 30RA-900---057 Accessory Package Contents for 30RAP010-060

Table 2 — 30RA-900---060 Accessory Package Contents for 30RAP070-150

PART NUMBER QUANTITY DESCRIPTIONHX30FZ001 1 Junction Box, WaterproofHX38ZZ001 1 Box Cover, WaterproofHW60EA001 2 Conduit Connector, 1/2 in. Nom

38C24601 2 Varnish Cloth, 1 in. W X 2.38 LgKH43LE125 2 Filter DrierRM04ED402 150 ft EXV (electronic expansion valve) Cable,18 ga, 4 Cond (BLK/BRN/RED/ORN)30RA500358 2 Sensor Well32GB404694 1 Flow Switch Extension Cable, 95 ft

99MH7304GC204210 4 Wire99MZ7304GC204210 4 Wire

HY69DS045 6 Terminal, MaleRM02EJ115 150 ft Thermistor Cable, 2 Conductor 22 gaSee Table 5 12 Crankcase Heater (4 each of each voltage type)

PART NUMBER QUANTITY DESCRIPTIONHX30FZ001 1 Junction Box, WaterproofHX38ZZ001 1 Box Cover, WaterproofHW60EA001 2 Conduit Connector, 1/2 in. Nom

38C24601 2 Varnish Cloth, 1 in. W x 2.38 Lg30RA500358 2 Sensor Well32GB404694 3 Flow Switch and EXV Extension Cable, 95 ftHY69DS045 6 Terminal, MaleRM02EJ115 150 ft Thermistor Cable, 2 Conductor 22 ga

LIQUIDLINE (CUT)

HOT GAS BYPASS(CUT IF EQUIPPED)

SUCTIONLINE (CUT)

Fig. 1 — Typical Unit Cooler Piping (30RAP010-060, Dual Circuit Shown)

a30-5063

3

OPTIONALHEATER

WATER OUT(HIDDEN)

WATER IN(HIDDEN)

EXV

SUCTION GAS(CUT ABOVEELBOW)

SIGHT GLASS(CUT UPSTREAMOF SIGHT GLASS)

HEATERWIRING

HOT GASBYPASS(CUT HEREIF EQUIPPED)

Fig. 2 — Cooler Removed from Unit (30RAP010-060, Dual Circuit Shown)

a30-5064

CIRCUIT B

SUCTION LINE (CUT)

LIQUID LINE (CUT)

CIRCUIT A

Fig. 3 — Typical Unit Cooler Piping (30RAP070-150)

A30-5360

4

11. Install field-supplied suction lines, hot gas bypass lines (ifrequired), and liquid refrigerant lines from unit to cooleraccording to Fig. 5-7 and Tables 3 and 4. Be careful toroute piping to proper refrigerant circuit. It is requiredthat liquid line filter driers be installed between the con-denser(s) and the expansion device(s) to capture any for-eign debris and provide additional moisture removalcapacity.

12. If hot gas bypass valve is used in remote applications, theline size should be kept to a minimum to reduce theamount of liquid refrigerant that can condense in the lineduring the off cycle. Liquid refrigerant in the hot gas by-pass line can result in a liquid slug entering the compres-sor at start-up. Line size is not as critical as if sizing fordischarge lines, therefore 5/8 in. OD line size is recom-mended for all applications. For 30RAP010-060, dual cir-cuit units should utilize circuit “A” hot gas bypass only.For 30RAP070-150, utilize both circuits hot gas bypass.It is important to loop the hot gas bypass line over thecompressor to help reduce the chance of the hot gas by-pass line filling with liquid in the off cycle. The hot gasbypass valve should be installed and wired in the standardlocation for the unit. If hot gas bypass valve is installed asa factory-installed option, cut the line outlet of the valveand run the hot gas bypass line to the remote cooler.Leave the hot gas bypass control solenoid valve where itis already located.

13. Label and cut EWT (entering water temperature) andLWT (leaving water temperature) thermistors approxi-mately 1 ft from the MBB (main base board) connector.For 30RAP010-060 units, label and cut EXV cable(s) ap-proximately 1 ft from the EXV board connector. For30RAP070-090 units, label and disconnect the existingcable.

14. The junction box supplied with the accessory is for splic-ing the thermistor leads and EXV leads (30RAP010-060)from the cooler with the cables from the base unit. Mountthe junction box near the liquid refrigerant connectionend of cooler. One or two knockouts can be used. Re-move a knockout from the bottom of the junction box andinstall field-supplied strain relief at the knockout hole. Ifusing conduit to provide mechanical protection to thewires between the junction box and the base unit, removeanother knockout. Follow local codes.

15. Install thermistors into thermistor wells in entering andleaving water piping. Run the labeled thermistor leadsfrom the cooler into the junction box and tighten thestrain relief. Strip back the lead jackets to expose the 2wires in each lead.

16. A 150 ft, 2-conductor jacketed cable is provided to con-nect the thermistor leads in the junction box back to thebase unit. Cut the cable in half. Label both ends of one ca-ble “EWT.” Label both ends of the other cable “LWT.”Run one end of the jacketed cables into the junction boxand splice the cable wires to the identically tagged therm-istor leads. Solder the splices and insulate them to preventshorting.

17. For 30RAP010-060 units:a. A 150 ft, 4-wire jacketed cable is provided to con-

nect the EXV leads in the junction box back to thebase unit. Each wire in the jacketed cable is a dif-ferent color. Cut the cable in half. Label each endof one of the EXV cable “EXV A.”

b. Label the ends of the other cable “EXV B” (ifpresent).

c. Run one end of the jacketed cable(s) into the junc-tion box and splice the cable wires to the identi-cally tagged EXV cable. Solder the splices andinsulate them to prevent shorting.

d. Tighten the strain relief for the cables and securethe junction box cover with the supplied 8B-18 x3/8-in. screw.

e. Coil excess cables and wire tie in a convenientlocation.

For 30RAP070-150 units:a. Label each end of one of the EXV extension cable

assemblies supplied with the accessory “EXV A.”Label the ends of the other assemblies “EXV B.”

b. Plug the electrical connectors of the appropriateEXV cable assemblies into the EXVs.

c. Run the other end of the cable assemblies to thebase unit.

d. Plug the accessory EXV cable assemblies into thecorresponding EXV leads located at the base unitwhere the EXV assemblies were removed.

e. Coil excess cables and wire tie in a convenientlocation.

HOT GAS BYPASS(CUT IF EQUIPPED)

EXV

FILTER-DRIERCIRCUIT A

CIRCUIT B

Fig. 4 — Cooler with Hot Gas Bypass Piping (30RAP070-150)

A30-5361

5

Table 3 — Recommended Refrigerant Line Sizing

EXV — Electronic Expansion Valve *Removal of EXV assembly from heat exchanger is not recommended.

Table 4 — Cooler Connection Dimensions

IDS — Inside Diameter (Solder)

30RAP

REFRIGERANT LINES

Suction LineDiameter (in.)

Liquid LineBefore EXV

Diameter (in.)

Liquid LineAfter EXV

Diameter (in.)*Ckt A Ckt B Ckt A Ckt B Ckt A Ckt B

010 13/8 — 5/8 — 1/2 —015 13/8 — 5/8 — 1/2 —018 15/8 — 5/8 — 1/2 —020 15/8 — 5/8 — 1/2 —025 15/8 — 5/8 — 5/8 —030 15/8 — 5/8 — 5/8 —035 15/8 15/8 5/8 5/8 1/2 1/2040 15/8 15/8 5/8 5/8 1/2 1/2045 15/8 15/8 5/8 5/8 1/2 1/2050 15/8 15/8 5/8 5/8 1/2 1/2055 15/8 15/8 5/8 5/8 5/8 5/8060 15/8 15/8 5/8 5/8 5/8 5/8070 15/8 21/8 7/8 7/8 11/8 11/8080 21/8 21/8 7/8 7/8 11/8 11/8090 21/8 21/8 7/8 7/8 13/8 13/8100 25/8 25/8 7/8 11/8 13/8 13/8115 25/8 25/8 11/8 11/8 13/8 13/8130 25/8 25/8 11/8 11/8 13/8 13/8150 25/8 25/8 11/8 11/8 13/8 13/8

UNIT30RAP

WATER CONNECTIONS REFRIGERANT CONNECTIONSInlet/Outlet (in.) Type Liquid Inlet (IDS) Suction Outlet (IDS)

010 11/2 Victaulic 1/2 13/8015 11/2 Victaulic 1/2 13/8018 11/2 Victaulic 1/2 15/8020 11/2 Victaulic 1/2 15/8025 11/2 Victaulic 5/8 15/8030 2 Victaulic 5/8 15/8035 21/2 Victaulic 1/2 15/8040 21/2 Victaulic 1/2 15/8045 21/2 Victaulic 1/2 15/8050 21/2 Victaulic 5/8 15/8055 21/2 Victaulic 5/8 15/8060 21/2 Victaulic 5/8 15/8070 3 Victaulic 11/8 21/8080 3 Victaulic 11/8 21/8090 3 Victaulic 13/8 21/8100 3 Victaulic 13/8 25/8115 3 Victaulic 13/8 25/8130 3 Victaulic 13/8 25/8150 3 Victaulic 13/8 25/8

6

SUCTION LINE

LIQUID LINE WATER OUT

WATER IN

VERTICAL

H

Fig. 5 — Cooler Dimensions — 30RAP010-030 Units

UNIT SIZEDIMENSIONS (in.)

A B C D E F G H R X Y Z010-025 20 3/4 4 11/16 18 1/2 2 1/2 1 7 1/4 13/4 1 2 3/8 8 7/8 1 1/4

030 20 3/4 9 9/16 18 6 7/8 1 8 1/8 21/8 1 3/8 4 5 1/2 1 5/8

a30-5065

SUCTION LINE(CIRCUIT B)

LIQUID LINE(CIRCUIT B)

WATER OUT

WATER IN

LIQUID LINE(CIRCUIT A)

SUCTION LINE(CIRCUIT A)

VERTICAL

H

Fig. 6 — Cooler Dimensions — 30RAP035-060 Units

UNIT SIZE

DIMENSIONS (in.)A B C D E F G H M R X Y Z

035-045 20 3/4 9 9/16 18 1/2 2 1/2 1 8 1/8 21/8 18 1 3/8 4 5 1/2 1 5/8050-060 27 3/8 12 23 3/4 8 1/2 2 9 0 21/8 23 1/4 1 1/4 4 5/8 17 1 5/8

a30-5066

7

18. For 30RAP010-060 units only, install crankcase heaters,one per compressor, and terminate in control box accord-ing to unit schematic diagram. See Table 5 for heater partnumbers. See Fig. 8 and 9.

19. Evacuate refrigerant piping. Because the 30RAP unitsuse polyolester (POE) oil, which can absorb moisture, itis important to minimize the amount of time that the sys-tem interior is left exposed to the atmosphere. Minimiz-ing the exposure time of the oil to the atmosphere willminimize the amount of moisture that needs to be re-moved during evacuation.

20. Once all of the piping connections are complete, leak testthe unit and then pull a deep dehydration vacuum. Con-nect the vacuum pump to the charging valve in the suc-tion line and to the liquid line service valve. For best re-sults, it is recommended that a vacuum of at least 500 mi-crons be obtained. Afterwards, to ensure that no moistureis present in the system, perform a standing vacuum-risetest. With the unit in deep vacuum (500 microns or less),isolate the vacuum pump from the system. Observe therate-of-rise of the vacuum in the system. If the vacuumrises by more than 50 microns in a 30-minute time period,then continue the dehydration process. Maintain a vacu-um on the system until the standing vacuum requirementis met. This will ensure a dry system. By following theseevacuation and dehydration procedures, the amount ofmoisture present in the system will be minimized.

21. Charge machine with refrigerant using nameplate chargeamount. Add charge according length of interconnectingpiping. Charge at the liquid line. Do not charge into suc-tion line or compressor damage will occur. Charge perunit installation instructions.

22. Check suction gas superheat for both circuits duringsteady operation. Increase set point if required, to accountfor suction line pressure drop and heat gain so that there isa 8° F superheat leaving the evaporator when measured atthe evaporator. Inspect the compressor oil sump duringsteady operation to ensure that oil is not foaming due toliquid flooding.

23. Check operation according to unit installation instructionsand adjust oil and refrigerant charge as necessary.

24. It is important to check filter drier pressure drop after sys-tem start up. Replace filter drier or filter drier core after24 hours or operation or if pressure drop becomesexcessive.

Table 5 — 30RAP010-060 Crankcase Heater Part Numbers

E

WATERIN

G O

WATEROUT

F NO

HFR

ON

T P

LATE

SID

E

SUCTION LINE(CIRCUIT A)

B

D SUCTION LINE(CIRCUIT B)

K

G

C A

LIQUID LINE(CIRCUIT B)

I J

LIQUID LINE(CIRCUIT A)

ML

M

BOTTOM VIEW

Fig. 7 — Cooler Dimensions — 30RAP070-150 Units

UNIT SIZE

DIMENSIONS (in.)A B C D E F G H I J K L M N O

070 19 1/8 9 3/4 15 3/4 6 1/8 1 18 1/4 6 1/2 1 5/8 4 1/4 3 1/2 14 1/2 7 7/8 N/A 1 7/8 7/8080 19 1/8 9 3/4 15 3/4 6 1/8 1 20 7/8 6 1/2 1 5/8 4 1/4 3 2/4 14 1/2 7 7/8 N/A 1 7/8 7/8090 29 1/8 12 5/8 24 7/8 8 1/8 2 12 1/8 8 7/8 2 5 3/8 4 11 3/8 11 3/8 1 3/4 1 7/8 7/8100 29 1/8 12 5/8 24 7/8 8 1/8 2 13 3/8 8 7/8 2 5 3/8 4 11 3/8 11 3/8 1 3/4 1 7/8 7/8115 29 1/8 12 5/8 24 7/8 8 1/8 2 15 4/8 8 7/8 2 5 3/8 4 11 3/8 11 3/8 1 3/4 1 7/8 7/8130 29 1/8 12 5/8 24 7/8 8 1/8 2 17 1/8 8 7/8 2 5 3/8 4 11 3/8 11 3/8 1 3/4 1 7/8 7/8150 29 1/8 12 5/8 24 7/8 8 1/8 2 19 5/8 8 7/8 2 5 3/8 4 11 3/8 11 3/8 1 3/4 1 7/8 7/8

A30-5362

VOLTAGE PART NUMBER460 HT32BH943

208/230 HT32BH948575 HT32BH941380 HT32BH948

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.Catalog No. 04-53300076-01 Printed in U.S.A. Form 30RAP-9SI Pg 8 12-11 Replaces: 30RAP-3SI

Copyright 2011 Carrier Corporation

CRANKCASE HEATERLOCATION

Fig. 8 — Crankcase Heater Location — 30RAP010-030 Units

a30-5067

A1A2

B1

B2

CRANKCASE HEATERLOCATION

Fig. 9 — Crankcase Heater Location — 30RAP035-060 Units

a30-5068