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6 - INSTALLATION - Electrical connections
6.1 - Electrical
connections: overview
WARNING!!! Label all wires prior to
disconnection when servicing controls. Wiring
errors can cause improper and dangerous
operation!
ATTENTION!!! Au moment de l'entretien des
commandes, étiquetez tous les fi ls avant de les
débrancher. Des erreurs de câblage peuvent
entraîner un fonction-nement inadéquat et
dangereux. S'assurer que l'appareil fonctionne
adéquatement une fois l'entretirn terminé.
WARNING!!! The boiler must be electrically
wired to ground in accordance with the
requirements of the authority having
jurisdiction or, in the absence of such
requirements, with the National Electrical Code,
ANSI/NFPA 70 and/or the Canadian Electrical
Code Part I, CSA C22.1, Electrical Code.
This is an essential safety requirement which
must be checked.
Check that the electrical system is adequate
for the power consumption indicated on the
rating plate.
Line voltage fi eld wiring of any controls or
other devices must conform to the temperature
limitation of type T wire at 95 °F (35 °C), above
room temperature. Use copper conductors
with a minimum size of #14 AWG. Low voltage
wiring must not be less than #18 AWG with a
neoprene, thermoplastic or other equivalent
insulation having a minimum insulation
thickness of 0.012 in, (3 mm).
A properly rated shut-off switch shall be
located at the boiler.
Ensure that the polarity between live and
neutral wires is maintained when connecting
the boiler.
CAUTION!!! Ensure that heating
and water piping is not used as a ground
connections for the electric and telephone
systems. This piping is completely unsuitable
for this purpose and, could rapidly lead to
serious corrosion damage to the boiler,
piping and radiators, voiding the warranty
CAUTION!!! The boiler is not provided
with any protection against lightening strikes.
A = Junction box
B = Plastic spring
C = Opening direction
D =
Screws for junction box cover
E = Junction box cover
F = Junction box cover opening direction
G = Electrical supply cable
H = Room thermostat cable (optional)
L = Outside temperature sensor cable (optional)
M = Storage tank temperature sensor
N = Remote command cable (optional)
Figure 14 - Junction box
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