Eco-King HWB-299, Installation And Service Manual

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E93.1801EN171 HWB installation manual 62
12 ELECTRICAL INSTALLATION
General
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For operation, the water heater needs a power supply of 120 VAC/ 60Hz.
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The water heater main supply connection is polarity sensitive.
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The wiring for the connections can be entered at the bottom of the water heater through the wiring knock-
outs.
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NOTICE: Before starting to work on the water heater, it must be switched off and the power supply to the
water heater must be disconnected.
•
Electrical wiring should be installed according to all applicable standards and regulations.
In the USA, electrical installation must comply with NFPA 70, National Electrical Code – latest edition,
and with any other national, state, provincial or local codes and regulations.
In Canada, electrical installation must comply with CSA C22.1, Canadian Electrical Code part 1 – latest
edition, and with any other state or local codes and regulations.
•
Wiring the water heater should only be done by a qualified
installer or licensed electrician where required
that is skilled in working on electrical installations and according to all applicable standards.
•
It is not allowed to change the internal wiring fitted by the manufacturer.
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A spare fuse is mounted on the casing of the burner controller.
Connection mains supply
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It is advised to use a flexible cable between the cabinet entry (at the bottom) and the connection terminal.
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The earth wire has to be longer than the phase and neutral wire.
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The power supply cable must be secured by tightening the cable gland at the bottom of the water heater
casing.
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In case of a flexible cable: use crimp ferrules on each wire end for the terminal connections.
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On the high voltage terminal, connect to numbers: 8 = Line; 9 = Neutral; PE = Earth.
Electrical connections
High power ignitor
A separate connector for an external igniter is located on the cable tree, near the
water heater controller and labelled "High power ignitor".
The "external ignition transformer" can be ordered, see § 5.1 "Accessories".
This accessory is provided with detailed mounting instructions.
LOW VOLTAGE CONNECTIONS
HIGH VOLTAGE CONNECTIONS