Slant/Fin VHG-100-CH, Installation And Service Manual

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E93.1901EN032 Installation and Service Manual SlantFin VGH-CH / CO
10 ELECTRICAL INSTALLATION
General
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For operation, the boiler needs a power supply of 120 VAC / 60Hz.
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The boiler main supply connection is polarity sensitive.
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The wiring for the connections can be entered at the bottom of the boiler through the wiring knockouts.
•
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Before starting to work on the boiler, it must be switched off and the power
supply to the boiler must be disconnected and the gas valve closed.
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Electrical wiring must 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.
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Wiring the boiler must only be done by a qualified installer or, where required, a licensed electrician 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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We advise to use a flexible cable between the cabinet entry (at the bottom) and the connection terminal.
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The ground wire has to be longer than the Line voltage (Hot) and neutral wire.
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The power supply cable must be secured by a strain-relief at the bottom of the boiler 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 voltage (Hot); 9 = Neutral; PE = Ground.
Electrical connections VGH-CH/CO boilers
High power ignitor
A separate connector for an external igniter is located on the wiring
harness, near the boiler controller and labelled "High power ignitor".
The "external ignition transformer" can be ordered, see paragraph
5.1.
This accessory is provided with detailed mounting instructions.
Figure 10.1
Read: “circulator”
if the word “pump”
is used
Figure 10.2
HIGH VOLTAGE CONNECTIONS
NOTICE
NOTICE
LOW VOLTAGE CONNECTIONS