Samlexpower VR175 Owner's manual - 4.
4.
INSTALLATION / ENVIRONMENTS
4.1 POWER
SOURCE
REQUIREMENTS
The power source must provide between 10.5 and 15.5 volts DC and must be
able to supply the necessary current to operate the load. The power source
may be a battery or a well-regulated DC power supply. To obtain a rough
estimate of the current (in amperes) the power source must deliver, simply
divide the power consumption of the load (in watts AC) by 10.
Example: lf a load is rated at 100 watts AC, the power source must be able to
deliver: 100 divided by 10=10 amperes
CAUTION: The SI-A2-VR175/VR250/VR400 must be connected only to
batteries with a nominal output voltage of 12 volts. The unit will not operate
from a 6 volt battery, and will sustain permanent damage if connected to a 24
volt battery.
4.2 CONNECTION TO POWER SOURCE
The 175W & 250W inverters come equipped with a 12 volt DC plug for
connection to the power source: [Figure 3]
CAUTION: Do not use with positive ground electrical systems. (The majority of
modern automobiles, RVs, and trucks are negative ground).
CONNECTING TO POWER SOURCE USING 12 VOLT DC PLUG:
The 12 volt DC plug is suitable for operating the inverter at power outputs up to
175 watts. The tip of the plug is positive and the contact is negative. Connect
the inverter to the power source by inserting the 12 volt DC plug (cigarette plug)
firmly into the 12 volt DC socket of a vehicle or other DC power source.
CAUTION: Connect directly to power source when operating above 175 watts.
NOTE: Most automobile 12 volt DC circuits use fuses rated at 15 to 20 amps
or greater. To operate at full 175 watts output, make sure the DC power source
can deliver 20 amps. A 15 amp circuit can only deliver 150 watts from the
inverter.
CAUTION: Loose connectors may cause overheated wires and melted
insulation. Check to make sure you have not reversed the polarity. Reverse
polarity connection will result in a blown fuse and may cause permanent
damage to the inverter.
For VR250 / VR400:
CONNECTING TO A POWER SOURCE USING PROVIDED CABLES:
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