Page 8 of 18
Vapor Power International LLC
551 S County Line Road, Franklin Park, Il 60115
Phone: 630-694-5500 Fax: 630-694-2230
3.0
ELECTRICAL INSTALLATION
3.1
ELECTRIC POWER SUPPLY
Check the boiler nameplate for the KW rating, voltage, phase and ampacity.
Check for the electrical supply to be certain it conforms with the boiler
requirements.
Make electrical connections to main terminals housed within the top portion
of the boiler control cabinet. Minimum wire size is given both on the
electrical schematic and near the boiler terminals. On boilers which require
multiple conductors per phase, be certain that phasing is correct and that
circuits are not “mixed” before energizing the boiler.
3.2
GROUNDING
Connect an equipment ground (minimum copper wire size is indicated on
both the wiring schematic and the panel near the grounding lug) to the
grounding lug located within the control cabinet.
NOTE: ELECTRICAL INSTALLATION MUST BE MADE IN STRICT ACCORD WITH (1)
THE BOILER’S ELECTRICAL SCHEMATIC, (2) THE NATIONAL ELECTRICAL
CODE, AND (3) LOCAL ELECTRICAL CODES.
3.3
CONTROL CIRCUIT POWER SUPPLY
On boilers which are not supplied with a control transformer, a fused 120 volt
power supply must be connected to the 2-pole terminal block housed within
the top of the control cabinet. Refer to the boiler’s electrical schematic for
required ampacity.
