Pure Sine Wave Bi-Directional Inverters Manual

2. SAFETY INSTRUCTION

2.1 Positioning

1. Do not put the Inverter on rugged or inclined surface.

2. Do not install the Inverter near water or in damp environments.

3. Do not install the Inverter where it would be exposed to direct sunlight or near heat.

4. Do not block off ventilation openings in the Inverter housing and don’t leave objects on top of the Inverter.

5. Keep the Inverter far away from heat emitting sources.

6. Do not expose it to corrosive gas.

7. Ambient temperature: 0˚C - 40˚C.

2.2 Installation.

MOUNT THE SINGLE HANGING BRACKET ONTO THE WALL.

SLIDE THE INVERTER OVER THE BRACKET SO THE INVERTER HANGS FROM

THE BRACKET.

2.3

1. Connect the Inverter AC OUTPUT only to an earthed DB Panel.

2. The AC connections are located at the top of the inverter under the top side cover. (Where the Live and N In, Live and N Out and Earth Connections are.)

3. If a 220 vac supply or a generator is available connect into the Live In and

Neutral.

4. Make sure the BATTERY INPUT CIRCUIT BREAKER is OFF.

5. Place cables in such a way that no one can step on or trip over them.

6. Battery Cables must be a minimum size of 35mm² and short as possible.

7. The battery cables come out of the bottom of the unit next to the input circuit breaker.

8. The unit must be mounted in a vertical position against the wall.

9. Designed to operate on a 48v battery system.

10. Minimum 300amp hour batteries to be used.

Earthing of Equipment.

Equipment surge protection products are an effective way of controlling dangerous surges that can enter a facility. When strategically placed and correctly installed, the Surge

Protectors will effectively reduce harmful over voltage conditions that can damage electrical and electronic equipment.

It is important that the protection system includes both structural and surge protection equipment.

When lightning current passes into the ground through any conductor (Example: Tree Trunk) a powerful electromagnetic force is set up due to the fast rise times of the strike. This electromagnetic force then couples into any inductive loops that may be available in nearby buildings. When these currents equalize, damage usually occurs to the equipment.

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2.3.1

1. LIVE IN and N IN –

2. LIVE OUT and N OUT –

3. EARTH 1

4. EARTH 2

–

–

Connect to Grid

Connect to AC Load.

Connect to Earth Bar.

Connect to Chassis Earth.

The Microcare inverter is designed primarily for Grid / Mains connection to include charging. When Mains is connected to the inverter the Neutral connection is Earthed via the Mains.

If the Inverter is connected as a stand-alone inverter with no Mains

Connection, The Neutral is required to be earthed using an earth spike.

If the Inverter is not earthed; warranty will be null and void.

2.3.2. INVERTER NEUTRAL CONNECTION

The inverter has a floating neutral so the neutral voltage will be close to 110v. In this case the live voltage with respect to the earth will also be around 110v.

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If you use your inverter for a standalone application you need to bridge the neutral input with the earth terminal on the inverter (these two are next to each other for this purpose). You can now fit an earth leakage after the inverter.

But if you are going to supply your inverter with AC from the grid then you need to put the inverter before the earth leakage and you need to keep the inverter neutral input connected to the GRID neutral at all times.

So if you what to switch the GRID input to the inverter off then one must only switch live. You can then put the earth leakage directly after the inverter. The grid will pull the inverter neutral to 0v.

2.3.3. Inverter Earth Connection to Grid.

2.3.4. Inverter Earth Connection Off-Grid.

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