Vector MAXXSST 2200 Manual do Proprietário descarregar pdf (Página 11)

When outside AC power is restored, the transfer switch should be returned

to the outside AC position. This off-loads the inverter and allows for faster

battery recharging.

Use the same charging guidelines in the previously described UPS (floating battery)

configuration.

You may have to contact an electrical supply house and/or your electrician to

install a transfer double-pole, double-throw ganged transfer switch rated at 25

amperes AC or greater. Both the Neutral and Hot must be simultaneously switched

to ensure that Neutral is NEVER connected to ground.

Common unattended applications for UPS (floating battery) and automatic transfer

switch configurations are for powering: sump pumps, safety lighting, communications

equipment, burglar alarm systems and computer systems. If a transfer switch is

used, computers should be also powered by a small capacity uninterruptible power

supply (UPS) to “ride through” the period that power is lost during the transfer delay.

If outside AC will not share an AC power distribution system with the Power Force

Inverter, the transfer switch configuration can be disregarded.

The UPS “floating battery” configuration can be used if uninterrupted AC power is

a requirement, regardless of whether direct wiring or inverter AC outlet plug-in

connections are used to power appliances.

3.0 THEORY OF OPERATION

The

inverter

changes 12 VDC into 110 VAC RMS, electrical power. This is

accomplished in two steps. See FIGURE 5. The first step raises the 12 VDC input

to 145 VDC. The advanced design of the DC-to-DC first stage uses modern

high-frequency conversion techniques that supersede bulky and heavy transformers

found in older, less technologically-advanced inverters. The output stage changes

the 145 VDC to 110 VAC. This solid-state circuitry ensures excellent overload

protection and the ability to operate reactive loads such as those found in

inductive motors.

CAUTIONS:

This device supplies 110 VAC electrical power directly to the appliances

through two standard, North American 3 conductor receptacles and through

the output hard-wire terminal block. The circuit connected to the High Output

Terminal Block requires a dual ganged 25 amp circuit breaker (not included).

See Figure 1 to locate the High Output Terminal Block. Installation of external

wiring is described in section 5.6. NEVER try to use the

inverter

with any 12

VDC power source that uses a positive ground. Most modern vehicles, boats,

and aircraft use negative ground systems.

Do not connect the ground wire from the inverter to the DC negative input.

• CHECK to ensure that the combined loads of the appliances being powered

by the MAXXSST

™

2200 inverter DO NOT continuously exceed

2,200 watts.

• NEVER place items on or over the inverter during operation.

The

inverter

generates heat during operation like any high power device and it

must be placed where cooling air can be drawn into the unit by its internal fan,

and heated air can be expelled and dissipated. For optimum operation, the

inverter should be placed or mounted on a flat surface; ideally, a normally cool

metal surface to help diffuse the heat that is generated. Two cables and a fuse

rated at 500 amps will be required (not supplied). Each should be no longer

than shown in the table in Appendix A to allow for full power operation and to

provide flexibility in positioning the inverter.

For safety reasons, keep small children away from the inverter.

5.3 Installation Sequence

To wire the inverter to a 12 VDC power source, observe the following cautions

and follow the installation sequence for Quick Operational Checkout and

Permanent Installation. External AC wiring is described after all DC wiring proce-

dures and tests are accomplished.

CAUTIONS:

Ensure that DC connection polarity is correct. Reversed polarity will blow a fuse

and may cause permanent damage to the inverter. The manufacturer’s warranty

does NOT cover damage due to reversed polarity. Review Figure 2, if

necessary, to identify the location of the DC terminals.

1 2 ... 6 7 8 9 10 11 12 13 14 15 16

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