Electrical Connections - Buderus 500-24S Installation And Maintenance Instructions Manual

1
Installation
V Push the assembly through the wall and slide the turret
onto the flue connector. Refer to figure 25. Ensure that
the turret is fully engaged into the socket on the boiler.
V From the outside fix the flue finishing kit to the terminal
and, after ensuring the duct is properly inclined
towards the boiler, fix the finishing kit to the wall.
If the terminal is within 2 m of the ground where there
is access then an approved terminal guard must be fit-
ted.
The guard must give a clearance of at least 50 mm
around the terminal and be fixed with corrosion resist-
ant screws.

1.10 Electrical connections

Mains connection to the appliance
Warning: Boiler damage!
V Connect the supply cable supplied with
the the boiler to the 230 Volt mains.
V DO NOT connect 230 Volts mains supply
to any other point on the boiler.
Caution: Electric shock!
Electrically isolate the appliance at the fused
spur before removing the case (
NOTE
All Buderus boilers require a permanent
mains supply of 230 Volts at 50 Hz.
Wiring to the boiler MUST be in accordance with the cur-
rent I.E.E. (BS.7671) Wiring Regulations and any local
regulations. Wiring should be a 3 core PVC insulated
cable, not less than 0.75 mm
table 16 of BS.6500.
The mains supply to the appliance, and any system con-
trols (thermostat, timer), must be from a dedicated fused
spur.
The spur must be capable of being isolated by either a
double pole switch, having 3 mm contact separation on
both poles, or by a three pin plug and socket arrange-
ment.
Damaged mains supply cables must be replaced using
cable as described above, and fitted by a qualified electri-
cian.
The means of isolation must be accessible to the user
after installation (fig. 30, item 1).
The electrical connection to the mains supply should be
readily accessible and adjacent to the boiler.
24
fig. 30).
2
(24 x 0.2 mm), and to
Buderus 500-24S - Subject to modifications resulting from technical improvements
Fig. 29 Flue terminal position
1. Flue Finishing Kit
2. Flue Terminal
3. Outer Wall Face
4. Raised Ring locating the terminal relative to the outside
wall face
ON
OFF
1
Fig. 30 DBA
1
2
4
3
7215 3100-29.1TD
7215 3100-30.1TD