Carrier 30GTN Installation Instructions Manual

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.

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)
5
/
8
-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
7
/
8
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
1
2 Shutoff Valves
200 ft (61 m)
5-Wire Jacketed
Cable
2 100-ft (30.5 m)
EXV Cable
Assemblies
1 Junction Box
1 Junction Box
Cover
1 Screw,
8B-18 x
3
/
8
2 Screws,
1
/
4
-14 x
5
/
8
045, 050
(1)
10HB050
1
060, 070
(1)
10HB070
1
080, 090,
230B, 245B
(1)
10HB090
1
100, 110,
255B, 270B,
290B, 315B
(1)
10HB110
1
130, 150,
230A, 245A
255A
(1)
10HB160
1
170,190,
270A, 290A,
330A/B, 360A/B,
390B
(1)
10HB200
1
210, 315A,
390A,
420A/B
(1)
10HB210
1
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
1
5
/
8
1
5
/
8
1
5
/
8
1
5
/
8
1
1
/
8
*
045
1
5
/
8
1
5
/
8
1
5
/
8
2
1
/
8
050
2
1
/
8
2
1
/
8
1
5
/
8
2
1
/
8
060-110,
230B-315B
2
1
/
8
2
1
/
8
2
1
/
8
2
1
/
8
130, 150,
230A-255A
2
5
/
8
2
5
/
8
2
5
/
8
2
5
/
8
170-210, 270A-315A
330A/B-420A/B
3
1
/
8
3
1
/
8
3
1
/
8
3
1
/
8
30GTN,GTR,GUN,GUR040-420
Remote Cooler Mounting Accessory
50/60 Hz
2
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.
3
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)
4
LEGEND
EXV —
Electronic Expansion Valve
TXV —
Thermostatic Expansion Valve
Fig. 2 — Liquid Line Piping
5
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
1
/
4
-14
x
5
/
8
-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
3
/
8
-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)
6
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
7
1
2
3
4
1
2
3
4
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
BLU
BLU
PNK
PNK
TB5
TB5
TB5
TB5
5
6
7
8
T10
T9
REMOTE SPACE TEMP
(ACCESSORY)
5
6
7
8
9
10
1
2
3
4
1
2
3
4
5
6
1
2
3
4
5
6
2
1
4
6
3
5
T5
T3
T4
T6
T2
T1
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
J8
T1-T6, T9, T10 THERMISTORS
3
3
1
2
4
5
1
2
3
4
5
1
2
3
4
5
1
2
4
5
BRN
WHT
RED
BLK
GRN
A
E
D
B
C
PL-EXVB
EXV-B
BRN
WHT
RED
BLK
GRN
J7
J6
PL-EXVA
C
B
D
A
E
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
Copyright 1999 Carrier Corporation
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Carrier 30GTN Installation Instructions Manual

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.

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