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4.- CONNECTION OF THE WATER HEATER TO THE ELECTRIC
NETWORK.
Prior to the connection to the electric network the connection
cable must be built in. For it the protection plate must be removed from
the water heater. The connection of water heater to the electric network
must be performed according to standards for electric installation.
Because the water heater has no components which would permanently
separate it from the electric network, upon the cable connection between
it and permanent installation a switch must be installed which breaks both
power supply poles having between the open contacts a gap at least 3
mm wide.
The below drawing shows the electrical water heater diagram:
Fig. – 4 NOFER – SB150N-SB200N electrical diagram.
