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
