Installation and servicing instructions for wall-mounted condensing gas boiler Buderus 600 - 11R/19R/24R • 02/2006
27
Subject to modifications resulting from technical improvements!
Buderus • http://www.buderus-domestic.co.uk
Installation
1
1.8
Electrical connections
1.8.1 Mains connection
A mains supply of 230 V - 50Hz is required.
External controls are suitable for volt free or 230 V
installation.
Wiring to the boiler MUST be in accordance with the
current 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
2
(24 x 0.2 mm), and to table 16 of
BS.6500
.
Connection must be made in a way that allows complete
isolation of the electrical supply such as a double pole
switch having 3 mm contact separation in both poles, or
by a three pin connector, serving only the boiler and
system controls. This boiler is equipped with a double
pole switch see fig. 22, item 1.
The means of isolation must be accessible to the user
after installation.
The electrical connection to the mains supply should be
readily accessible and adjacent to the boiler.
If the supply cord is damaged, it must be replaced by a
registered Corgi installer to avoid a hazard and must be
an original spare part.
The electrical supply for both the boiler and the system
must be taken from the same fused spur outlet.
Fig. 22 UBA
ON
OFF
permanent
live
1
NOTE
All Buderus boilers require a
permanent live.
