
10
Only qualified/authorized engineers or service personnel should
install the unit. Installation by unqualified personnel may cause
electric shock or fire.
Always make sure the unit is grounded to protect the user from
electrical shock.
Do not use the power supply cord if it is damagaged. Such supply
cord may cause fire or electric.
Never use a telephone line or lightning rod as ground protection.
During lightening, there is a strong current present, which is
extremely dangerous.
Electrical connection
In order to ensure a reliable installation that complies with the limits of
temperature and voltage drop, it is necessary to determine maximum load of
appliances connected to the installation. In determining the maximum load
for an installation or for a part of it, it is vital to take into account
contemporaneous factors. For supply systems, the following must be
determined:
- Power system (AC/DC) - Data regarding voltage and absorbed power/
current is given on the rating plate.
- Ground protection: To prevent the user of getting exposed to electrical
shock, in the event of a insulation damage, the appliance must be grounded
- The installation must always be secured with a minimum 10 A fuse.
- If more than one appliance needs to be installed, each appliance must be
connected to an individual fuse group.
When installing the unit, make sure the protected earth is grounded. If the
connection is a 3-prong connection, use a three-pin plug and connect the
conductor with yellow / green insulation to ground. In order to maintain a
stable operation of the unit, voltage variation cannot dier more than ±10 per-
cent of the nominal voltage supply.
Always follow local regulations when preparing an installation. If in doubt
always contact your local authorities.
Do not use water pipes as ground protection. Modern water pipe
systems are non-conductors such as PVC.