Electrical Connection - Saunier Duval SYLVA FF 24 E Installation And Operating Instructions Manual

ELECTRICAL CONNECTION

Warning. This boiler must be earthed
All system components must be of an approved
type.
Connection of the whole electrical system and any
heating system controls to the electrical supply must
be through a common isolator.
Isolation should preferably be by a double pole
switched fused spur box having a minimum contact
separation of 3 mm on each pole. The fused spur
box should be readily accessible and preferably
adjacent to the boiler. It should be identified as to
its use.
A fused three pin plug and shuttered socket outlet
may be used instead of a fused spur box provided
that:
a) They are not used in a room containing a fixed
bath or shower.
b) Both the plug and socket comply with the current
issue of BS1363.
The mains electrical supply must be maintained at
all times in order to provide domestic hot water.
Do not interrupt the mains supply with a time switch
or programmer.
WARNING: ON NO ACCOUNT MUST ANY EXTERNAL
VOLTAGE BE APPLIED TO ANY OF THE TERMINALS ON
THE HEATING CONTROLS CONNECTION PLUG.
Boiler's 230 V mains lead :
- brown wire : line / blue wire : neutral / yellow and green wire : earth
Fig. 9a
Warning : you must respect the line / neutral connections to the 230 V mains supply.
No external controls
1
3
Factory fitted link
1
Green wire
2
Red wire
3
White wire
Warning :
- All external controls must be voltage free
- On no account must any external voltage be
applied to any of the external controls plug terminals
Diagram 14
Room thermostat only
Voltage free room
thermostat
2
External controls
The SYLVA FF 24 E boiler is designed to operate at
maximum efficiency at all times. The boiler will run
at its' maximum efficiency when connected to a
programmable electronic room thermostat. A
programmable room thermostat is available as an
accessory, Saunier Duval part number 40010. Please
contact your supplier.
The boiler will work for heating without a room
thermostat and/or timeswitch being connected
provided that the wire link fitted between the upper
two terminals of the connector (E) is left in place,
see diagram 14.
A 230V room thermostat can be used but do not
make any connection to the compensating resistor,
see diagram 14.
ON NO ACCOUNT must any electrical voltage be
applied to any of the terminals of the external
controls plug.
For use with a timeswitch or timeswitch and room
thermostat, see diagram 14.
Warning: This appliance must be wired in
accordance with these instructions. Any fault arising
from incorrect wiring cannot be put right under the
terms of the Saunier Duval guarantee.
External control connector
E
Room thermostat and time clock
Voltage free room
thermostat
Do not
connect
1
2
3
Time clock
Do not
connect
1
2
3
13