BLUEHELIX PRIMA 24 C
12
EN
cod. 3541R820EN - Rev. 03 - 03/2020
2.4 Gas connection
B
Before making the connection, ensure that the unit is arranged for operation
with the type of fuel available.
The gas must be connected to the corresponding union
(see )
in conformity
with current regulations, with a rigid metal pipe or with a continuous flexible
s/steel tube, installing a gas cock between the system and boiler. Make sure
that all the gas connections are tight. Otherwise there may be a risk of fire,
explosion or suffocation.
2.5 Electrical connections
IMPORTANT
B
BEFORE CARRYING OUT ANY OPERATION THAT REQUIRES REMOVING
THE CASING, DISCONNECT THE BOILER FROM THE ELECTRIC MAINS
WITH THE MAIN SWITCH.
NEVER TOUCH THE ELECTRICAL COMPONENTS OR CONTACTS WITH THE
MAIN SWITCH TURNED ON! DANGER OF ELECTRIC SHOCK WITH RISK OF
INJURY OR DEATH!
B
The unit must be connected to an efficient grounding system in accordance with
applicable safety regulations. Have the efficiency and suitability of the grounding
system checked by professionally qualified personnel; the Manufacturer declines
any liability for damage caused by failure to earth the system.
The boiler is prewired and provided with a three-pole cable, without a plug, for con-
nection to the electric line. The connections to the grid must be made with a per-
manent connection and equipped with a bipolar switch whose contacts have a
minimum opening of at least 3 mm, interposing fuses of max. 3A between the
boiler and the line. Make sure to respect the polarities (LINE: brown wire / NEU-
TRAL: blue wire / GROUND: yellow-green wire) in the connections to the electric
line.
B
The unit's supply cable
MUST NOT BE REPLACED BY THE USER
.
If the cable
gets damaged, turn the unit off and have the cable replaced only by profes-
sionally qualified personnel.
In case of replacement, only use cable
“HAR H05
VV-F”
3x0.75 mm2 with max. external diameter of 8 mm.
Room thermostat (optional)
B
ATTENTION: THE ROOM THERMOSTAT MUST HAVE VOLTAGE-FREE CON-
TACTS. CONNECTING 230V TO THE ROOM THERMOSTAT TERMINALS
WILL PERMANENTLY DAMAGE THE PCB.
When connecting a time control or timer, do not take the power supply for such de-
vices from their cutoff contacts. Their power supply must be via a direct connection
from the grid or with batteries, depending on the kind of device.
