Carrier GTR Installation Instructions Manual

Brand: Carrier

Model: GTR

Type: Installation Instructions Manual

This manual is also suitable for

The Carrier 30GTN Remote Cooler Mounting Accessory allows for the relocation of the cooler from 30GTN, GTR, GUN, and GUR units up to 75 ft away from the base unit. This accessory is especially useful when you need to reduce noise or create more space in the area where the unit is installed. It also minimizes line losses if proper piping practices are followed.

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.

PC 903 Catalog No. 563-000 Printed in U.S.A. Form 30G-22SI Pg 1 6-99 Replaces: 30G-17SI

Book 2

Tab 5c

Installation Instructions

Part No. 30GT911050

SAFETY CONSIDERATIONS

Installation 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 technicians

should install, start up, and service this equipment.

When installing this accessory, observe precautions in the

literature and on any labels attached to the equipment, and all

other safety precautions that may apply.

• Follow all safety codes.

• Wear safety glasses and work gloves.

• Use care in handling and installing this accessory.

INTRODUCTION

The remote cooler mounting accessory permits indoor relo-

cation of the cooler from 30GTN, GTR, GUN, GUR units up

to 75 ft (22 m) away from the base unit. Relocating the cooler

introduces minimal line losses if correct piping practices are

followed. See Table 1 for the number of accessory packages re-

quired for each unit and for the package contents.

In addition to the parts supplied with the accessory package,

the following material must be field-supplied:

• refrigerant-grade liquid and suction line piping (length

determined by installation). See Table 2 for connection

sizes.

• pressure relief valves and fittings

• suction flange gasket

• suction line tubing insulation (length determined by

installation)

•

-in. strain relief

• conduit (length determined by installation)

Table 1 — Unit Application

LEGEND

EXV

— Electronic Expansion Valve

* For modular units (230-420), quantity listed is per module.

†

For modular units (230-420), 1 package required for Module A

and 1 package required for Module B; total of 2 packages required

per unit.

Table 2 — Cooler Refrigerant-Line Connection Sizes

LEGEND

ODS —

Outside Diameter, Sweat

* On unit sizes 040-110 and 230B-315B, the actual liquid line is

inch.

ELECTRIC SHOCK HAZARD

To avoid the possibility of electrical shock,

open and tag all remote disconnects before

installing this equipment.

UNIT 30GTN,

GTR, GUN,

GUR

(QTY)

COOLER*

ACCESSORY

PACKAGES

REQUIRED†

PACKAGE

CONTENTS

040

(1)

10HB040

2 Shutoff Valves

200 ft (61 m)

5-Wire Jacketed

Cable

2 100-ft (30.5 m)

EXV Cable

Assemblies

1 Junction Box

Cover

1 Screw,

8B-18 x

″

2 Screws,

-14 x

″

045, 050

(1)

10HB050

060, 070

(1)

10HB070

080, 090,

230B, 245B

(1)

10HB090

100, 110,

255B, 270B,

290B, 315B

(1)

10HB110

130, 150,

230A, 245A

255A

(1)

10HB160

170,190,

270A, 290A,

330A/B, 360A/B,

390B

(1)

10HB200

210, 315A,

390A,

420A/B

(1)

10HB210

UNIT 30GTN, GTR,

GUN, GUR

COOLER SUCTION LINE CONNECTIONS

(in. ODS)

COOLER

LIQUID LINE

CONNECTIONS

(in. ODS)

60 Hz Units 50 Hz Units

Circuit A Circuit B Circuit A Circuit B

040

045

050

060-110,

230B-315B

130, 150,

230A-255A

170-210, 270A-315A

330A/B-420A/B

30GTN,GTR,GUN,GUR040-420

Remote Cooler Mounting Accessory

50/60 Hz

INSTALLATION

1. Inspect package contents for any missing or damaged

parts. File a claim with the shipping agency if parts are

damaged. Notify your Carrier representative if any

item is missing.

2. Determine the new location for the cooler(s). Ensure

that the new location supports the cooler weight and

that there is enough room for service access and tube

removal. See Table 1 to determine the model numbers

and quantities of coolers in each unit. See Table 3 for

cooler weights and Fig. 1 for cooler dimensions.

NOTE: Steps 3-20 below describe how to relocate and

reinstall one cooler. For units with two coolers, per-

form these for each cooler.

Table 3 — Nominal Cooler Weights

*Cooler weight when filled with water or brine.

3. Open and tag all electrical disconnects.

4. Remove the cooler from the base unit, following the

directions in the base unit Installation, Start-up and

Service Instructions. If required, strip back the insula-

tion on the cooler tube sheets and use the 2 large holes

in the top corners of the tube sheets for lifting. Make

sure to label the thermistors with corresponding ther-

mistor numbers for reinstallation. For units with elec-

tronic expansion valves (EXVs), disconnect the

electrical cables from the EXVs. For units with ther-

mostatic expansion valves (TXVs); note the locations

of the equalizer lines and sensor bulbs and detach

them.

5. Transport the cooler to its new location, and bolt it in

position according to the instructions for replacing a

cooler in the base unit Installation, Start-Up and Ser-

vice Instructions. Make sure the new location has

enough room to install the EXV or TXV (if used),

sight glass, filter drier, and service valve. See Fig. 2.

Also ensure that there is sufficient room to remove

cooler tubes if required for future service.

6. At the base unit control box, (see Fig. 3) disconnect

the other ends of the thermistor leads; make sure to

label the leads. If applicable, disconnect the other ends

of the EXV cables that came with the unit and discard

them.

7. At the base unit, remove the liquid line piping between

the manual shutoffs and the old cooler conections. The

piping includes EXVs or TXVs, sight glasses, and fil-

ter driers. See Fig. 2.

8. Reinstall the piping at the cooler; install the shutoff

valves (supplied with the accessory) immediately

upstream from the filter driers. See Fig. 2.

9. Following Carrier-recommended piping practices,

install additional field-supplied liquid line piping in

the required lengths to reconnect the cooler and base

unit. As shown in Fig. 2, the new liquid lines between

the service valves must each have a field-supplied and

installed pressure relief valve.

10. Following Carrier-recommended piping practices,

replace the suction flange gaskets and install additional

field-supplied suction line piping in the required

lengths to reconnect the cooler and base unit. For units

with TXVs: Replace the sensor bulbs and equalizer

lines according to their original positioning. Make sure

to insulate the TXV bulbs.

11. Following the instructions for replacing a cooler in the

base unit Installation, Start-up and Service instruction,

reinstall the thermistors in the cooler.

COOLER

WEIGHT

(FILLED*)

WEIGHT

(UNFILLED)

Lb Kg Lb Kg

10HB040

576 261 485 220

10HB050

658 299 545 247

10HB070

770 349 620 281

10HB090

949 431 745 338

10HB110

1080 491 860 391

10HB160

1736 789 1320 600

10HB200

2119 963 1630 741

10HB210

2428 1104 1865 848

New cooler location and supporting structures must be able

to support the weight of the filled cooler.

Do not shut off both service valves in either liquid line.

Pressure can build within the trapped area. To avoid the

possibility of personal injury or property damage, a field-

supplied pressure relief valve must be installed in each liq-

uid line between the two shutoff valves. See Fig. 2.

Fig. 1 — Cooler Dimensions

NOTE:

1. Dimensions are in inches. Dimensions in ( ) are

in millimeters.

2. All numbers in ( ) indicate cooler part numbers.

COOLER “A” “B” “C” “D” “E” “F” “G” “H” “J” “K” “L”

10HB040

57.92 (1471) 69.67 (1770) 6.73 (171) 7.75 (197) 53.44 (1357) 4.51 (115) 2.21 (56) 14.32 (364) 13.44 (341) 9.92 (252) 3.60 (91)

10HB050

69.92 (1776) 81.67 (2074) 6.73 (171) 7.57 (193) 65.44 (1662) 4.51 (115) 2.21 (56) 14.32 (364) 13.44 (341) 9.92 (252) 3.60 (91)

10HB070

69.92 (1776) 81.67 (2074) 6.98 (177) 8.57 (218) 64.94 (1649) 4.51 (115) 2.46 (63) 16.32 (415) 15.44 (392) 11.17 (284) 4.10 (104)

10HB090

94.09 (2390) 105.85 (2689) 8.70 (221) 8.57 (218) 85.68 (2176) 4.51 (115) 5.19 (132) 16.32 (415) 15.44 (392) 11.17 (284) 4.10 (104)

10HB110

97.19 (2469) 107.22 (2723) 8.94 (216) 9.19 (233) 86.12 (2187) 4.51 (115) 4.97 (126) 17.57 (446) 16.70 (424) 12.47 (317) 4.23 (107)

10HB160

111.04 (2820) 118.84 (3019) 11.19 (284) 10.42 (265) 92.22 (2342) 1.78 (45) 10.41 (264) 19.98 (508) 19.12 (486) 13.42 (341) 4.85 (123)

10HB200

111.04 (2820) 119.96 (3047) 11.69 (297) 11.39 (289) 92.22 (2342) 2.28 (58) 10.41 (264) 22.07 (561) 21.30 (541) 15.00 (381) 4.81 (122)

10HB210

109.40 (2779) 121.67 (3090) 8.82 (224) 12.19 (310) 98.60 (2504) 5.63 (143) 3.80 (97) 23.58 (599) 22.70 (577) 16.79 (427) 4.66 (118)

COOLER “M” “N” “P” “R” “S” “T” “V” “W” “X” “Y”

10HB040

12.29 (312) 1.25 (32) 4.51 (115) 4.42 (112) 5.20 (132) 3.04 (77) 3 (76) .58 (15) 2.87 (73) 2.87 (73)

10HB050

12.29 (312) 1.25 (32) 4.51 (115) 4.42 (112) 5.20 (132) 3.04 (77) 3 (76) .58 (15) 2.87 (73) 2.87 (73)

10HB070

15.42 (392) 1.25 (32) 5.22 (133) 5.00 (127) 5.99 (152) 3.46 (88) 4 (102) 0 2.87 (73) 2.87 (73)

10HB090

15.42 (392) 1.25 (32) 5.22 (133) 5.00 (127) 5.99 (152) 3.46 (88) 4 (102) 0 2.87 (73) 2.87 (73)

10HB110

15.42 (392) 1.25 (32) 5.60 (142) 5.50 (140) 6.62 (168) 3.46 (88) 5 (127) .64 (16) 2.87 (73) 2.87 (73)

10HB160

17.58 (447) 4.37 (111) 6.37 (162) 6.39 (162) 7.74 (197) 3.63 (92) 6 (152) .77 (20) 3.12 (79) 3.12 (79)

10HB200

17.58 (447) 3.28 (83) 6.52 (166) 8.27 (210) 7.63 (194) 6.05 (154) 6 (152) 1.86 (47) 3.12 (79) 3.12 (79)

10HB210

21.56 (548) 2.65 (67) 6.93 (176) 8.84 (225) 8.29 (211) 6.12 (156) 6 (152) .57 (15) 3.00 (76) 2.87 (73)

LEGEND

EXV —

Electronic Expansion Valve

TXV —

Thermostatic Expansion Valve

Fig. 2 — Liquid Line Piping

12. The junction box supplied with the accessory is for

splicing the thermistor leads from the cooler with the

5-wire jacketed cable from the base unit. One or two

knockouts can be used. Follow local codes. Remove a

knockout from the bottom of the junction box and

install field-supplied strain relief at the knockout hole.

If using conduit to provide mechanical protection to

the thermistor wires between the junction box and the

base unit, remove another knockout. See Fig. 4 for a

typical installation.

13. Mount the junction box near the cooler with two

-14

-in. screws provided. Run the labeled thermistor

leads from the cooler into the junction box and tighten

the strain relief. Strip back the lead jackets to expose

the 2 wires in each lead. See Fig. 4.

14. A 200 ft (61 m) 5-wire jacketed cable is provided to

connect the thermistor leads in the junction box back

to the base unit. Each wire in the jacketed cable is a

different color. Cut the cable into 2 pieces with maxi-

mum length of 100 ft (30.5 m).

15. Select one jacketed cable and strip back the jacket on

both ends to expose the 5 wires. Pick any 2 wires and

label both ends of each wire “T1.” Pick another pair of

wires and label both ends of each “T2.” One wire is

not used.

For units with EXVs, select the second half of the

jacketed cable and strip back the jacket on both ends to

expose the 5 wires. Pick any 2 wires and label both

ends of each wire “T5.” Pick another pair of wires and

label both ends of each “T6.” One wire is not used.

NOTE: Units with TXV only require only one 5-wire

cable between the cooler and the base unit.

16. Run one end of the jacketed cable(s) into the junction

box and splice the cable wires to the identically tagged

thermistor leads. Solder the splices and isolate them to

prevent shorting. Tighten the strain relief for the

cable(s) and secure the junction box cover with the

supplied 8B-18 x

-in. screw. Splicing for T1 and T2

leads is shown in Fig. 4; for units with EXVs, T5 and

T6 splices to second cable are similar.

Fig. 3 — 30GTN,GTR,GUN,GUR Control Box

(Typical, Size 080-110 and Associated Modular Units Shown)

17. Run the other end of the jacketed cable(s) back to the

base unit and into the control box. Tie cables to piping

or run cables in conduit; follow local codes. Referring

to the section on servicing thermistors in the base unit

Installation, Start-Up and Service Instructions, attach

each wire to the appropriate thermistor connection. For

30GTN, GTR, GUN, GUR units connect the wires to

MBB-J8 (Main Base Board) for T1, T2, T5 and T6.

See Fig. 5.

For units with EXVs, label each end of one of the EXV

cable assemblies supplied with the accessory “EXV

A.” Label the ends of the other assembly “EXV B.”

Refering to the section on servicing EXV valves in the

base unit Installation, Start-Up and Service Instruc-

tions, connect the EXV cable assemblies to the EXVs

and to the appropriate EXV connections in the control

box: For 30GTN, GTR, GUN, GUR units connect

the leads to EXV-J6 (Electronic Expansion Valve)

(EXV-A) and EXV-J7 (EXV-B). See Fig. 6.

18. Charge the unit to the amount of refrigerant required

over a clear sight glass as specified in the base unit

installation instructions.

19. Perform all pre-start-up and start-up procedures speci-

fied in the base unit operating instructions. Follow the

supplied checklist.

20. When unit is operating correctly, verify that suction

lines do not leak, then install field-supplied insulation

on suction lines between unit and cooler. If necessary,

reinstall insulation on cooler heads.

Fig. 4 — Typical Junction Box Connections

BLU

PNK

TB5

T10

REMOTE SPACE TEMP

(ACCESSORY)

COOLER ENTERING

FLUID TEMP

OUTDOOR-AIR TEMP

(ACCESSORY)

COOLER LEAVING

FLUID TEMP

SATURATED

CONDENSING TEMP-

CIRCUIT B

SATURATED

SUCTION TEMP-

CIRCUIT B*

SATURATED

CONDENSING TEMP-

CIRCUIT A

SATURATED

SUCTION TEMP-

CIRCUIT A*

MAIN BASE BOARD

T1-T6, T9, T10 THERMISTORS

BRN

WHT

RED

BLK

GRN

PL-EXVB

EXV-B

BRN

WHT

RED

BLK

GRN

PL-EXVA

EXV-A

Fig. 5 — Thermistor Connections

* Not used on FIOP (Factory-Installed Option) unit

with TXV (Thermostatic Expansion Valve).

ELECTRONIC EXPANSION VALVES

(

EXVs

)

Fig. 6 — EXV Connections to EXV Board —

EXV-J6 and EXV-J7

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.

PC 903 Catalog No. 563-000 Printed in U.S.A. Form 30G-22SI Pg 8 6-99 Replaces: 30G-17SI

Book 2

Tab 5c

Carrier GTR Installation Instructions Manual

Brand: Carrier

Model: GTR

Type: Installation Instructions Manual

This manual is also suitable for

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Carrier GTR Installation Instructions Manual

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Carrier GTR Installation Instructions Manual

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