Printronix PrintCart - Manual (Page 13)

Electrical Installation
13
120V/60Hz Models
Eight switches are located on the top center of the RV750ULHW inverter/
charger front panel. The far left switch is for charge rate. The down (normal)
position is fast (45A) charge; the up position is slow (11A) charge. Use the UP
position to recharge fully discharged batteries. If the batteries accept a full
charge without excessive heating or out-gassing, the capacity selector can be
retuned to the full (down) setting.
230V/50Hz Models
A red button labeled “Sleeping Mode” is located on the right side of the
charger (blue device at the bottom of the power module). Depressing this
button reduces the charge rate to approximately 1/3 the normal rate. If the
batteries accept a full charge without excessive heating or out-gassing, the
sleep mode button can be retuned to the full or out position.
WARNING If the batteries become excessively hot or emit a detectable odor, the
batteries are damaged beyond repair and are dangerous to use. Stop
charging immediately. Remove the batteries from service and dispose
of them according to local regulations.
Do not charge the batteries at a rate greater than 1/4 of the amp-hour
capacity. For example, a 100 amp-hour battery should be charged no faster
than 25 amps (or a pair of 100 amp-hour batteries no faster than 50A).
The charger on this cart provides the maximum recommended charge rate for
the batteries with which it is equipped.
CAUTION Do not use additional or larger chargers to speed recharging.
Permanent battery damage will occur and the potential for catastrophic
failure is high.
Before connecting or disconnecting the batteries, turn off battery powered
electrical equipment and disconnect both the main DC disconnect and display
power cable.
Make sure that battery terminal covers are in place to prevent accidental
shorts between the battery and surrounding frame or equipment.
Use insulated tools to service any power connections that cannot be
disconnected from battery power.