6
2.2
Changing Transformer Taps
NOTE: This procedure refers only to A36D battery chargers that accept three input voltages of 120, 240, and
208 VAC [Voltage code: ABD]. All other A36D battery chargers do not include transformer taps.
Before wiring AC power to the A36D, check the wiring of the power transformer PT, to be sure it is connected
for the correct AC input voltage. The A36D accepts standard input voltages of 120, 208, or 240 VAC by
changing the connections to the input terminals. No other changes are required.
NOTE: The A36D is wired at the factory for 240 VAC, except on special request.
Before changing the PT taps, be sure that AC supply and DC loads to the A36D are turned off and locked out.
Verify that no voltage is present by using a voltmeter at all input and output terminals. Turning off the AC and
DC circuit breakers on the A36D
does NOT eliminate live voltages inside the enclosure. Additionally, de-energize
any external wiring to the alarm relay contacts.
Verify that all voltages within the enclosure are de-energized and locked out. Change the connections to the
input terminals as shown in the table and figure below.
2.2.1 Changing Transformer Taps Procedure
Before beginning any work inside the charger enclosure, ensure that all incoming AC supply and DC wires are
de-energized. Verify that no voltage is present inside the enclosure by using a voltmeter at all input and output
terminals.
For 120 VAC Input Voltage:
1.
Connect TS-3 jumper wire across terminals 1 & 2
2.
Connect wire marked D to terminal 3
3.
Connect wire marked E to terminal 1
Note that AC input 1 connects to terminal L1
Note that AC input 2 connects to terminal L3
For 208 VAC Input Voltage:
1.
Connect TS-3 jumper wire across terminals 2 & 3
2.
Connect wire marked D to terminal 2
3.
Connect wire marked E to terminal 3
Note that AC input 1 connects to terminal L1
Note that AC input 2 connects to terminal L2
For 240 VAC Input Voltage:
1.
Connect TS-3 jumper wire across terminals 2 & 3
2.
Connect wire marked D to terminal 1
3.
Connect wire marked E to terminal 3
Note that AC input 1 connects to terminal L1
Note that AC input 2 connects to terminal L2
VAC
Input
TB1
Use
TS-3
Jumper
Connection
TS-4
D E
120
L1-L3 1-2 3
1
208
L1-L2 2-3
2
3
240
1
3
Figure 7 – Input Terminals Connection
Schematic (240VAC Input Shown)
Table 5 – Input Terminal Connections
Summary of Contents for A36D
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