Electrical Installation; General; Connection Mains Supply; Electrical Connections - Slant/Fin VGH-299-CH Installation And Service Manual

11

ELECTRICAL INSTALLATION

General


For operation, the boiler needs a power supply of 120 VAC 60Hz.

The boiler main supply connection is polarity sensitive.

The wiring for the connections can be entered at the bottom of the boiler through the wiring knockouts.

NOTICE: Before starting to work on the boiler, it must be switched off and the power supply to the boiler
must be disconnected.

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.
 Wiring the boiler must 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.

A spare fuse is mounted on the casing of the burner controller.

Connection mains supply


It is advised to use a flexible cable between the cabinet entry (at the bottom) and the connection terminal.

The earth wire has to be longer than the phase and neutral wire.

The power supply cable must be secured by tightening the cable gland at the bottom of the boiler casing.

In case of a flexible cable: use crimp ferrules on each wire end for the terminal connections.

On the high voltage terminal, connect to numbers: 8 = Phase ; 9 = Neutral; PE = Earth.

Electrical connections

Figure 11. 1
Figure 11. 2
NOTICE
High power ignitor
A separate connector for an external igniter is located on the cable tree, near the
boiler 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.
56
LOW VOLTAGE CONNECTIONS
HIGH VOLTAGE CONNECTIONS
Read: "circulator" if the word "pump" is used
E93.1601EN032.C VGH installation manual