GNB SCR100-06-260S1Z, Installation & Operating Instructions Manual, Page: 7 / 38

Instr. 4770-65-95005-00 Page 3
2.0 INTRODUCTION
The GNB SCR100 battery chargers are convection
cooled, solid state, micro-processor controlled SCR
regulated chargers designed to make battery charging
simple. They are factory set to charge sealed lead-acid
batteries but it may be configured by a GNB service
representative to charge flooded lead-acid batteries.
The charger has a comprehensive self-checking
diagnostic program to control all charger functions,
monitor the quality of charge and check its own safety
conditions. Large easy to read LEDs, three button
keypad and LED display report on charger and battery
status.
3.0 RECEIVING CHARGER
Examine the charger thoroughly before using, to make
sure that no parts have been loosened or damaged
during shipment. Check the contents of the package
against the delivery slip before disposing of the shipping
package. If any shipping damage or partial loss is
found, file a claim with the carrier without delay and take
any necessary steps to protect your rights. Before
installing check that the charger nameplate data
corresponds to the packing slip and to the model
specified on the original sales order.
The SCR100 chargers are delivered on skids for easy
handling using a fork lift truck.
4.0 LOCATION AND INSTALLATION OF
CHARGER
Proper installation is important in order to achieve good
charger performance and long troublefree operation and
to prevent damage to the charger and batteries. The
charger should be located in a clean, cool, normal
ambient room temperature (b45
°
F/7.2
°
C and
90
°
F/32.2
°
C) dry and well ventilated area. In order to
permit free air flow for convection cooling allow four
inches minimum between the charger and any wall, six
inches from other equipment, and never store anything
beneath and on top of the charger.
4.1 STACKING
When stacking chargers on top of each other, ensure
that cabinets are bolted together using properly sized
black #1/4-20 UNC hardware provided in all four corners
on top cover. The floor mounting must be done with
#3/8-16 UNC bolts (steel rack) or #3/8 lag screws and
anchors (concrete floor). All charger models with a Z,
SCR100-XX-XXXT1Z OR SCR100-XX-XXXS1Z, can be
stacked to a maximum of three high.
WARNING: THE ABOVE PROCEDURES MUST
BE FOLLOWED EXACTLY TO AVOID INJURY
OR RISK OF ELECTRIC SHOCK.
WARNING: TO REDUCE THE RISK OF FIRE,
INSTALL BATTERY CHARGER ON A FLOOR OF
NON-COMBUSTIBLE MATERIAL SUCH AS
STONE, BRICK, CONCRETE OR METAL. IF
THIS IS NOT AVAILABLE, A FLOOR PLATE OF
AT LEAST 1.43mm GALVANIZED OR 1.6mm
UNCOATED STEEL EXTENDED AT LEAST
150mm BEYOND THE EQUIPMENT
ON ALL
SIDES MUST BE INSTALLED.
5.0 AC ELECTRICAL SUPPLY
The charger must be connected to either a single phase,
or three phase 50 or 60 Hertz (
±
2%) AC power source.
The following options are available:
TABLE 1 – INPUT VOLTAGE CHOICES
Single phase Three phase
a) 120/208/240VAC, 60Hz e) 208/240/480VAC, 60Hz
b) 208/240/480VAC, 60Hz f) 480VAC, 60Hz
c) 600VAC, 60Hz g) 600VAC, 60Hz
d) 240VAC, 50Hz h) 380/415VAC, 50Hz
Only the AC input wire configuration for multi-input
chargers can be changed. Follow Figure 1 (page 4) for
single phase input or Figure 2 and Figure 3 (pages 5-6)
for three phase input transformers. This change should
be done by a qualified electrical contractor.
5.1 AC FUSE MOUNTING
The charger comes with a fuseblock rated big enough to
accommodate the highest possible current and voltage
for that particular model. Proper fuse ratings can be
found in Table 2 and Table 3(see pages 9-12) for AC
input fuses (F1, F2 in case of a single phase input or F1,
F2, F3 in case of a three phase input). Fuses with an
ampere rating of 30A or less are smaller and need fuse
reducers when placed in a 60A fuseblock.
5.2 INPUT VOLTAGE CHANGE
Before proceeding check which transformer tap
configuration you have. When changing the taps on the
input side between 1) 120, 208, 240 VAC or 2) 208, 240,
480 VAC (single phase input), be sure to change the
wires and/or jumpers according to Figure 1 (page 4).
Once finished, refer to Table 2 (pages 9-10) for the
correct size of AC input fuses. Similarly when changing
input voltage between 1) 208, 240, 480 VAC or 2) 380,
415VAC (three phase input) follow the schematics on
Figure 2 or Figure 3 (pages 5-6) whichever is applicable.
Following that, check Table 3 (pages 11-12) for the
correct size of AC input fuses. Figure 3 (page 6) applies
to 12 cell 475, 600, 750, 865 Ah; 18 cell 475, 600, 750,
865, 965, 1050 Ah; and 24 cell 475, 600, 750, 865Ah
chargers only.
NOTE:
Upon completion and proper verification of the
input voltage configuration change, markings on the
door label and the unit nameplate must be revised
(crossing out factory set markings); re-mark the label
with a permanent marker to reflect new input voltage
configuration and fuse size.