Carrier 30GX900006 User manual

Installation Instructions
Part Nos. 30GX900006, 30GX900007, 30GX900008,
30HX900006, and 30HX900013
SAFETY CONSIDERATIONS
Installation of this accessory can be hazardous due to sys-
tem pressures, electrical components, and equipment loca-
tions (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, labels attached to the equipment, and any other
safety precautions that apply.
• Follow all safety codes.
• Wear safety glasses and work gloves.
• Use care when handling and installing the accessory.
ELECTRIC SHOCK HAZARD
To avoid the possibility of electrical shock, open
and tag all disconnects before installing this
equipment.
INTRODUCTION
The control transformer accessory reduces the voltage of
the primary power supply for a 30GX or 30HX chiller to the
level required for the control circuit. The control trans-
former also enables each chiller to use a single point power
connection.
Inspect the package contents for missing or damaged
parts. File a claim with the shipping agency if any parts are
damaged. Notify your Carrier representative if any parts are
missing.
Table 1 shows the accessory application information and
the contents of the kit.
INSTALLATION FOR 30GX APPLICATIONS
1. Open and tag all electrical disconnects.
2. Open the chiller control box doors to access the power
and control wiring. See Fig. 1 and 2.
3. Remove the control transformer from the accessory car-
ton. Remove a 1-in. knockout from each side of the trans-
former (Fig. 3).
4. Mount the transformer to the sheet metal bracket
(Fig. 4) through the pre-drilled holes. Use the four
3
⁄ 8 -in.-16 x 1-in. long hex head bolts,
3
⁄ 8 -in. plate wash-
ers, and
3
⁄ 8 -in.-16 nuts.
5. Mount the control transformer assembly to the chiller.
Both the chiller and the accessory sheet metal bracket
have pre-drilled holes for this purpose. Using the four
3
⁄ 8 -in.-16 x 1
1
⁄ 4 -in. hex head screws, screw the bottom
of the transformer assembly to the chiller base rail
(see Fig. 1 for 30GX080-176 and Fig. 2 for 30GX205-
265); screw the top of the transformer assembly to the
control box support channel.
Table 1 — Control Transformer Accessory Kits:
Application and Contents
CHILLER
APPLICATION ACCESSORY PART NO.
POWER
SUPPLY TRANSFORMER FUSE (2 Each) FUSE BLOCK HARDWARE
Volts Hz kva Part No. Part No. Part No. Qty Description
30GX080-265
30GX900006 230,
460 60 5 HT01AH868 HY10NJ100 HY11BM630
1
1
1
2
4
4
2
4
4
4
36-in. (914) Conduit Assembly
50-in. (1270) Conduit Assembly
Sheet Metal Bracket
35-in. (889) 14 Gage Wires
3
⁄ 8 -in.-16 x 1-in. Hex Head Bolts
3
⁄ 8 -in.-16 x 1
1
⁄ 4 -in. Hex Head Screws
10B-16 x
3
⁄ 4 -in. Screws
3
⁄ 8 -in. Plate Washers
3
⁄ 8 -in.-16 Nuts
1
⁄ 2 -in. Electrical Reducing Washers
30GX900007 575 60 5 HT01AH869
30GX900008 208 60 5 HT01AH867 HY10NJ175
30HX076-271 30HX900006 200,
230,
460 60 0.75 HT01BE227 None None 4
4
4
1
⁄ 4 -in.-20 x
5
⁄ 8 -in. Screws
1
⁄ 4 -in. Flat Washers
1
⁄ 4 -in. x 20 Nuts
30HX900013 575 60 0.75 HT01BE228 None None
LEGEND
kva — Kilovolt-Ampere
NOTE: Dimensions in ( ) are in mm.
30GX080-265
30HX076-271
Control Transformer Accessory
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Book 2
Tab 5c PC 903 Catalog No. 533-069 Printed in U.S.A. Form 30GX,HX-9SI Pg 1 1-98 Replaces: 30GX,HX-5SI

CONTROL
BOX INTERIOR
14 GAGE WIRE
FIELD POWER SUPPLY
TERMINAL BLOCK (TB1)
14 GAGE WIRE
FUSE BLOCK AND FUSES
CONTROL BOX
SUPPORT CHANNEL
36 IN. CONDUIT
BRACKET/TRANSFORMER ASSY
CHILLER BASE RAIL
50 IN. CONDUIT
CONTROL POWER
TERMINAL BLOCK (TB4)
GROUND SCREW
LOCATION IN TB4
CHILLER
(CONTROL BOX END)
TB1
TB4
BLK
WHT GRN-YEL
BLKWHT
GND
Fig.1—Transformer Mounting Location and Wiring — 30GX080-176
Fig.2—Transformer Mounting Location and Wiring —
30GX205-265
2

6. Mount the fuse block (Part No. HY11BM630) to
the bottom of the control box (Fig. 1) using the two
10B-16 x
3
⁄ 4 -in. screws for 30GX080-176 units. For
30GX205-265 units, mount the fuse block to the back
of the control box (Fig. 2).
7. Install the 2 fuses (Part No. HY10NJ100 or HY10NJ175)
into the fuse block. Since the fuse block is a 3-pole block,
the fuses can be installed in any 2 clips.
8. Connect the 35-in. (889-mm) long, 14 gage wires
(supplied in the accessory kit) from any 2 terminals of
the field power supply terminal block (TB1 in Fig. 1,
TB1B in Fig. 2) to 2 terminals on one side of the fuse
block. Be sure connections are made to 2 terminals that
have the fuses installed. Trim the wires to the required
lengths, if desired.
9. Connect the 36-in. (914-mm) conduit assembly be-
tween the transformer enclosure and the bottom of
the 30GX unit control box using the
1
⁄ 2 -in. electrical
reducing washers supplied (see Fig. 1 and 2).
10. Connect one end of the wires in the 36-in. (914-mm)
conduit to the terminals on the fuse block opposite where
the 14-gage wires were installed. Connect the other ends
of the wires to the primary side of the transformer
according to the connection diagram for the correct volt-
age as shown in Fig. 5.
11. For 30GX080-176 units, use the 50-in. (1270-mm) con-
duit assembly, supplied in the accessory kit, to connect
the terminals on the secondary side of the transformer to
the chiller control terminal block, TB4. See Fig. 1 and
Fig. 5.
For 30GX205-265 units, cut and strip the wires from
the 50-in. (1270-mm) conduit assembly and connect to
the blue and white wires marked ‘‘CTRANS,’’ found in
the bottom left corner of the control box. See Fig. 2.
Connect the other end of the blue and white wires to
TB4 in the side control box as shown in Fig. 6.
12. For 30GX080-176 units, connect the stripped end of the
transformer ground wire in the 50-in. (1270-mm) con-
duit to the ground screw adjacent to the chiller con-
trol terminal block, TB4. Connect the ring end of the
same wire to the ground lug in the transformer box. See
Fig. 1.
For 30GX205-265 units, attach a field-supplied ring ter-
minal to the stripped end of the transformer ground and
attach to the hole in the control box shelf. See Fig. 2.
13. Make sure that all connections are correct and tight. Close
and secure the chiller control box doors.
14. Restore power to the chiller and verify its correct
operation as described in the base unit Start-Up and
Service Instructions.
NOTE: Dimensions are in inches. Dimensions in ( ) are in mm.
Fig. 3 — Accessory Control Transformer for
Chiller Models 30GX080-265
3

17.44
(442.98)
16.57
(420.88)
7.09
(180.09)
TRANSFORMER
SCREW
HOLES
1.57
(39.89)
6.00
(152.40)
7.24
(183.90)
8.16
(207.29)
10.24
(260.09)
1.06
(26.92)
2.95
(74.93)
1.61
(40.89)
8.16
(207.29)
1.06
(26.92)
SCREW HOLES
FOR CONTROL
BOX SUPPORT
CHANNEL
SCREW HOLES FOR CHILLER BASE RAIL
.53D (8)
NOTE: Dimensions are in inches. Dimensions in ( ) are in mm.
Fig. 4 — Sheet Metal Bracket for 30GX Accessory
Control Transformer Kits
TO TB4
230-3-60
120V
TO TB4
575-3-60
H1 H3 H2 H4
FROM FUSE BLOCK
240V
X4 X2 X3 X1
120V
FROM FUSE BLOCK
600V
X4 X2 X3 X1
H1 H2
460-3-60
H1 H3 H2 H4
FROM FUSE BLOCK
480V
120V
TO TB4
X1
X3X2
X4
208-3-60
TO TB4
FROM FUSE BLOCK
208V
X4 X2 X3 X1
H1 H2
120V
LEGEND
H1-H4 — Primary Side Connectors
TB — Terminal Block
X1-X4 — Secondary Side Connectors
Fig. 5 — Electrical Connection Diagrams for
30GX Accessory Control Transformer
4

Fig. 6 — Control Box — 30GX205-265
5

INSTALLATION FOR 30HX APPLICATIONS
1. Open and tag all electrical disconnects.
2. Remove the 3 control box panels on the chiller to access
the chiller power and control wiring.
3. Remove the accessory control transformer from the
carton.
4. On units with single point power connections (that is, a
single power terminal block or disconnect), install the
accessory control transformer to the right of the discon-
nect or the power terminal block (TB1A). See Fig. 7. Since
there are no pre-drilled holes in the chiller control box,
see Fig. 8 for transformer hole pattern. Screws, washers,
and nuts are provided in the accessory kit.
5. On units with dual power supplies, install the trans-
former at the top of the control box between the 2 in-
coming power supplies. See Fig. 7. Since there are no
pre-drilled holes in the chiller control box, see Fig. 8 for
transformer hole pattern. Screws, washers, and nuts are
provided in the accessory kit.
6. Run 14 gage wire (field supplied) from any 2 terminals
of the field power supply terminal block (TB1A) to the
appropriate terminals on the primary side of the acces-
sory control transformer. See Fig. 9 for correct electrical
connections for your primary voltage. The transformer uses
1
⁄ 4 -in. male quick connects.
7. Run 14 gage wire (field supplied) from the secondary side
of the transformer (contact points X1 and X2) to termi-
nals 1 and 2 of terminal block TB4 in the chiller control
box.
8. Make sure that all connections are correct and tight. Re-
install the 3 chiller control panel covers.
9. Restore power to the chiller and verify its correct opera-
tion as described in the base unit Start-Up and Service
Instructions.
NOTE: Dimensions are in inches. Dimensions in ( ) are in mm.
Fig. 7 — 30HX Chiller Control Panel (Interior)
6

.25 IN. DOUBLE MALE QUICK CONNECT TERMINALS WITH NO.8 SCREWS
(SEE FIG. 5 AND 7 FOR TRANSFORMER LOCATION AND TERMINALS USED)
5.50
(139.70)
MAX.
6.80
(172.72)
MAX.
4.58
(46.33)
MAX.
SIDE VIEW
TOP VIEW
BOTTOM VIEW
0.45
(11.43)
MAX. SLOT SIZE:
.297 x .560 (7.54 x 14.22)
.25 DIA SCREW
4.06
(103.12)
.06
(1.52)
D
NAMEPLATE
H1 H2 H3 H4
X1
X2
+
_
4.00
(101.6)
.02
(0.51)
+
_
NOTE: Dimensions are in inches. Dimensions in ( ) are in mm.
Fig. 8 — Accessory Control for Chiller Models
30HX076-271
X2 X1
115V
H1 H2
460V H3
230V
200V H2
X2 X1
115V
H1 H2
V
575
Fig. 9 — Electrical Connection Diagrams for
30HX Accessory Control Transformer
7

Copyright 1998 Carrier Corporation
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Book 2
Tab 5c PC 903 Catalog No. 533-069 Printed in U.S.A. Form 30GX,HX-9SI Pg 8 1-98 Replaces: 30GX,HX-5SI