Electrical Connections - Heatline solaris 24PC Installation, Servicing & User Instructions

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9. Electrical Connections

9.1 The boiler is supplied factory wired
complete with 1.5 m of mains fly lead. All
electrical connections to the mains supply
must be made in accordance with the current
I.E.E. regulations.
9.2 The boiler must be connected to an
15
effective earth system. Using the cable
supplied the boiler may be connected via a 5
amp fused three pin plug to an unswitched
shuttered socket outlet. However if the boiler
is installed in a room containing a bath or
shower regulations dictate that disconnection
must be incorporated in the fixed wiring with a
switch provided for disconnection from the
mains supply having a contact separation of at
least 3 mm on all poles and fused at 5 amp.
9.3 The point of connection must be readily
accessible, at a distance no further than 1.5m
adjacent to the appliance and provide complete
electrical isolation for the boiler and control
system.
9.4 The low voltage room thermostat terminal
block is located on the back left side of the
control box (figure 7). On connection of a
voltage free room thermostat to the boiler, the
factory fitted
thermostat terminal connectors must be
removed. If a mains voltage thermostat is to
be used the please refer to figure 8.
Figure 6b
bridge across the room
9.5 Mains powered thermostats must be connected
directly to the mains circuit board as indicated in
Figure 8.
9.6 Ensure that the polarity of the mains
connection is correct as reversed polarity may
cause the appliance to malfunction.
9.7 While the boiler's main PCB, pump, three-way
valve and gas valve are supplied at 230V a.c., all
other components and associated circuits are
supplied at low voltage.
9.8 On connecting the mains electrical supply to
the boiler, it is essential to ensure that electrical
safety checks for earth continuity, earth resistance,
polarity and short circuit are carried out prior to
making the final connection. A diagram of the
boiler's electrical circuit is given in figure 8.
9.9 Fuse Ratings
F1 and F2 are 3.15A fast
Bertelli & Partners Circuit Board
F1 – 3.15A fast
F2 – 3.15A fast
F3 – 3.15A fast
SIT Circuit Board not used
F1 – not used
F2 – not used
Warning: On no account must any
external voltage be applied to any of the
terminals on
connection plug.
Page 15
solaris 24PC, 30PC
the heating control