Installation manual

necessary to remove power to the controller when changing settings etc, so a point of local

isolation is valuable.

Installers must put a large sign by the hot water tank that says “Do not drain this tank without

first turning off the hot water element in the power shed at the location indicated”. In the

power shed put a label that says “before draining the hot water system turn off this breaker”.

If you have PWM controller you will also need a note to “turn off the hydro turbine before

draining this tank”. Regardless off your system configuration, turn off the hydro turbine prior

to working on your system.

DB5 - DC breaker or fuse in the wire supplying the inverter. DB5 is not always shown for

clarity and because it is often integrated into the inverter. It may be omitted if the inverter

instructions do not require it.

Rating should be similar to the surge rating of the inverter. It may be possible to rely on the

main battery fuse to protect the inverter cables in the event of a short circuit, but make sure

that the turbine does not remain directly connected to the inverter in the event of such fuses

blowing or being removed.

AC Out - AC wiring guidance is not provided as this has to be done by a registered

electrician and this is already well covered in national standards that your electrician will be

familiar with. AC and DC wiring must be separated at all times. Consult your local

regulations for minimum separation distances and other methods of ensuring separation.

The neutral may need to be earth-bonded to ground the AC system see section 6.2.4.

Green lines - These show the earth connections; most electrical systems need to be

connected to earth in case the exposed metal becomes energized by an equipment failure.

Earth-grounding reduces the danger of shock if the exposed metal is subsequently touched.

See section 6.2.2.

Yellow dotted lines – These lines indicate that enclosures are required.

Wiring HRC fuse-holders at the battery

The wiring (where batteries are in the system diagrams) show

HRC fuses.

Depending on whether you have a non-earthed or earthed

battery bank you will need 1-2 of these items to complete your

installation.

It is very costly to purchase high amp rating DC breakers but

HRC fuse holders are relatively inexpensive. One or two 3-pole

HRC fuses can be used in many ways and provide a very cost

effective solution. You can remove the handles and fuses thus

ensuring your safety while working on the system.