Trace Engineering Mariner Owner's Manual

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Caution: Excessively high charge rates can overheat a battery. If battery bank capacity is low, set
the battery charge rate to the minimum setting.
Shore Power Amps Monitoring
Mariner models monitor the current drawn by the built-in charger and any AC loads. These current
requirements may exceed the amperage rating of the shore power circuit breaker. To prevent
unnecessary tripping of this circuit breaker, the inverter limits the current draw to a maximum
between five and 30 amps, set by using the RC7 remote control. Shore power amps is pre-set at the
factory to a maximum of 25 amps.
VAC Dropout
Mariner model inverter/chargers monitor the voltage of the AC power passing through to the charger
and AC loads. When AC voltage falls below a pre-set level, the inverter automatically transfers from
AC power to DC power. This dropout voltage is factory pre-set to 40 volts. You can re-set this
voltage from 40 to 100 volts using the RC7 remote control. Using a lower voltage results in less
frequent transfers from AC to DC power, but may cause undesirable operation of some AC loads,
including brown-outs and damage.
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Mariner inverters feature circuitry that minimizes power drain by reducing the inverter’s output to
small test pulses when there is no load connected to the inverter. These pulses are used to detect
the presence of a load. When a load is detected the inverter’s output goes to full voltage. The
sensitivity of the detection threshold is adjustable from about five watts to 40 watts using the RC7
remote control. This feature is defeated (turned Off) at the factory and can only be activated using
the RC7 remote control.
Example: With the threshold set to detect a 40 watt load, a 50 watt load will bring the unit to full
output voltage. However, a 30-watt load will leave the inverter in its energy saving Search Mode. If
sensitivity is increased (by setting the control to 10), a 20 watt load will bring the inverter out of the
search mode, while a five-watt load will not.
When in the search mode, the green Power LED will blink. At full output voltage, the LED will remain
lit. When the inverter is used as an un-interruptable power supply, the search mode function should
be defeated. A neon nightlight can be used as a good indicator to determine if the inverter is in
search mode. Simply plug the light into any AC outlet connected to the inverter’s output. When the
inverter is in the search mode the light will blink. If the inverter is running a load, the light will be on
continuously.
Exceptions: (Murphy’s Law) Unfortunately, things don’t always work the way the manual says they
will.
Example A: If the threshold is set to detect a 40-watt load and a 30-watt incandescent light is turned
on, the inverter will detect the light. The light is a bigger load than 40 watts when its filaments are

Trace Engineering Mariner Specifications

General

Brand	Trace Engineering
Model	Mariner
Category	Inverter
Language	English