Vision TZ58/1800-10 Installation, Operation And Maintenance Manual page 17

Inserting the Vacuum Tubes
Do not fill any tubes with cold water if they have been exposed

to the sun. The sudden contraction will cause them to fracture.
Keep the tubes covered and in the packaging when not preparing them for insertion into the tank.
Spray or dip the open end of the tube in a dilute soapy non-toxic water solution.
Pull the dust cover over the tube to about 150mm from the open end of the tube. Ensure that it is
placed the correct way round with the bevelled side away from the open end.
If necessary, re-wet the open end of the tube.
Insert the tube into the opening of the tank, working from the centre to the outside.
The tubes should be inserted well into the tank and then pulled back into the boot on the back box
mounted on the stand. Once the tube has been installed in the tank, move the dust cover into
position.
It is recommended that the supply and outlet pipework is completed before the tubes are incerted.
This will allow for a slow trickle water into the main tank to fill the tubes as the tube is inserted fill
with water. Alternatively cover the tubes with an opaque cover, such as canvas cloth or the
cardboard box until the system is filled.
Adequate precautions must be taken to prevent the tubes from heating in the sun. If this is not
possible, wait until the early hours of the morning, before the sun has had time to heat the tubes, to
fill the system with water.
Fitting the Electric Element

Any electrical work done on the system should be done by a
qualified electrician. There are various safety and legal
requirements that must be complied with
In order to comply with the safety requirements, only Enervision Approved elements and thermostats may be
used in the system. Do Not fit an electric element without a thermostat.
If the system was ordered with an electric element, the element will be pre-fitted to the system.
The Code of Practice for electrical installations requires that a two pole isolator switch is fitted to the
supply to the element.
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Issue 2.0 Mar 2013
Vision Solar Systems - 100 L Gravity Fed Type
.