30GX-4SB
30GX080-265
AIR-COOLED LIQUID CHILLER
— PERFORMANCE DATA
— CERTIFIED DIMENSION PRINT
— FIELD WIRING DIAGRAM
1997 Carrier Corporation • Syracuse, New York 13221
Form 30GX-4SB Supersedes 30GX-3SB
Printed in U.S.A.
12-97
Catalog No. 513-450
CUT ALONG DOTTED LINE
CUT ALONG DOTTED LINE
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CERTIFIED DIMENSION PRINT
CERTIFIED DIMENSION PRINT
CUT ALONG DOTTED LINE
CUT ALONG DOTTED LINE
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CERTIFIED DIMENSION PRINT
CERTIFIED DIMENSION PRINT
CUT ALONG DOTTED LINE
CUT ALONG DOTTED LINE
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CERTIFIED DIMENSION PRINT
CERTIFIED DIMENSION PRINT
TOTAL OPERATING
WEIGHT
TOTAL OPERATING
WEIGHT
UNIT
30GX
Aluminum Fin
Copper Fin
lb
kg
lb
kg
205
225
12,184
12,364
5,538
5,620
13,569
13,749
6,168
6,250
NOTES:
1. Unit must have clearances for air flow as follows:
Top — Do not restrict in any way
Ends — (1524 mm) 5 ft (from solid surface)
Sides — (1829 mm) 6 ft
2. Unit with sound hoods requires clearances for air flow as
follows:
Top — Do not restrict in any way
Ends — (1829 mm) 6 ft
Sides — (2134 mm) 7 ft
3. Center of gravity shown is for aluminum fin coil. See instal-
lation instructions for all other values.
CUT ALONG DOTTED LINE
CUT ALONG DOTTED LINE
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CERTIFIED DIMENSION PRINT
TOTAL OPERATING TOTAL OPERATING
WEIGHT
WEIGHT
UNIT
30GX
Aluminum Fin
Copper Fin
lb
kg
lb
kg
206
226
250
12,794
12,974
13,194
5,815
5,897
5,997
14,462
14,642
14,862
6,574
6,655
6,755
NOTES:
1. Unit must have clearances for air flow as follows:
Top — Do not restrict in any way
Ends — (1524 mm) 5 ft (from solid surface)
Sides — (1829 mm) 6 ft
2. Unit with sound hoods requires clearances for air flow
as follows:
Top — Do not restrict in any way
Ends — (1829 mm) 6 ft
Sides — (2134 mm) 7 ft
3. Center of gravity shown is for aluminum fin coil. See in-
stallation instructions for all other values.
CERTIFIED DIMENSION PRINT
TOTAL OPERATING
WEIGHT
TOTAL OPERATING
WEIGHT
UNIT
30GX
Aluminum Fin
Copper Fin
lb
kg
lb
kg
251
265
13,774
13,829
6,621
6.286
15,549
15,604
7,068
7,093
NOTES:
1. Unit must have clearances for air flow as follows:
Top — Do not restrict in any way
Ends — (1524 mm) 5 ft (from solid surface)
Sides — (1829 mm) 6 ft
2. Unit with sound hoods requires clearances for air flow
as follows:
Top — Do not restrict in any way
Ends — (1829 mm) 6 ft
Sides — (2134 mm) 7 ft
3. Center of gravity shown is for aluminum fin coil. See
installation instructions for all other values.
CUT ALONG DOTTED LINE
CUT ALONG DOTTED LINE
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FIELD WIRING DIAGRAM
NOTES:
LEGEND
1. Factory wiring is in accordance with National Electrical Code (NEC). Field modifica-
tions or additions must be in compliance with all applicable codes.
2. Wiring for main field power supply must be rated 75° C minimum. Use copper for all
units. Maximum incoming wire size for each terminal block is 500 kcmil.
3. Power for control circuit should be supplied from a separate source through a field
supplied fused disconnect with 30 amp maximum protection for 115 volt control circuits
and 15 amp maximum protection for 230 volt control circuit. Connect control circuit
power to terminals 1 and 2 of TB4. Connect neutral side of supply to terminal 2 of TB4.
Control circuit conductors for all units must be coppr only. 380/415 control power wired
at factory. Requires field supplied neutral connection.
CCN
—
—
—
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—
—
Carrier Comfort Network
CWFS
CWP
Chilled Water Flow Switch
Chilled Water Pump
CWPI
EQUIP
GND,GRD
TB
Chilled Water Pump Interlock
Equipment
Ground
Terminal Block
Field Power Wiring
Field Control Wiring
Factory Installed Wiring
4. Terminals 13 and 14 of TB2 are for field external connection for remote ON-OFF. The
contacts must be rated for dry circuit application capable of handling a 24 vac to 50 mA
load.
5. Terminals 11 and 12 of TB2 are for chilled water flow switch (CWFS) and chilled water
pump interlock (CWPI) functions. The contacts must be rated for dry circuit application
capable of handling a 24 vac to 50 mA load.
6. Terminals T3 and T4 on relay board are for chilled water pump. The maximum load
allowed for the chilled water pump relay is 125 va sealed, 1250 va inrush at 115 or
230 volt.
FIELD WIRING DIAGRAM
NOTES:
LEGEND
Carrier Comfort Network
1. Factory wiring is in accordance with National Electrical Code (NEC). Field modifi-
cations or additions must be in compliance with all applicable codes.
2. Wiring for main field power supply must be rated 75° C minimum. Use copper for
all units. Maximum incoming wire size for each terminal block is 500 kcmil.
3. Power for control circuit should be supplied from a separate source through a field
supplied fused disconnect with 30 amp maximum protection for 115 volt control
circuits and 15 amp maximum protection for 230 volt control circuit. Connect con-
trol circuit power to terminals 1 and 2 of TB4. Connect neutral side of supply to
terminal 2 of TB4. Control circuit conductors for all units must be coppr only. 380/
415 control power wired at factory. Requires field supplied neutral connection.
4. Terminals 13 and 14 of TB2 are for field external connection for remote ON-OFF.
The contacts must be rated for dry circuit application capable of handling a 24 vac
to 50 mA load.
CCN
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—
—
—
TB
—
Terminal Block
CWFS
CWP
CWPI
EQUIP
GND
Chilled Water Flow Switch
Chilled Water Pump
Chilled Water Pump Interlock
Equipment
Field Power Wiring
Field Control Wiring
Factory Installed Wiring
Ground
5. Terminals 11 and 12 of TB2 are for chilled water flow switch (CWFS) and chilled
water pump interlock (CWPI) functions. The contacts must be rated for dry circuit
application capable of handling a 24 vac to 50 mA load.
6. Terminals T3 and T4 on relay board are for chilled water pump. The maximum load
allowed for the chilled water pump relay is 125 va sealed, 1250 va inrush at 115 or
230 volt. Minimum load required is 25 va sealed.
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