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15
2000225229C
5 Boiler Installation
5.6 Control Box Access
Slacken the control box securing screw, see diagram 5.10.
Swing the box out on its hinge.
5.7 Electrical Connection
WARNING:
This boiler must be earthed.
NOTE:
If an optional programmer is to be installed, it should be
fitted at this stage, see separate installation instructions supplied
with programmer
Take care not to damage any internal wiring.
Using heat resistant (85
o
C) cable of at least 0.75mm
2
(24/
0.2mm) and of a suitable length, thread through the grommet at
the rear of the control box, through the cable clamp and connect
to appropriate terminals. Tighten cable clamp screws, see
diagram 5.10.
Standard colours are, brown - live (L), blue - neutral (N) and
green/yellow - earth (
).
The mains cable outer insulation must not be cut back external
to the cable clamp.
Make sure the cable is suitably secured.
When making connections, make sure that the earth conductor
is made of a greater length than the current carrying conductors,
so that if the cable is strained the earth conductor would be the
last to become disconnected.
5.8 Pump Connection
Route pump cable as mains, see diagram 5.10.
Connect to control box terminal block, see diagram 9.5.
SPIGOT
Diagram 5.6
BLANKING
PLATE
7150
GASKET
SCREWS
(4)
REAR FLUE
FIXING
TOP FLUE FIXING
SCREWS
(4)
5.9 Testing
Checks to ensure electrical safety must be carried out by a
competent person
.
7663
FLUE DUCT
EXTENSION
RETAINING
CLAMP
FAN
ELBOW
PRESS
PRESS
PRESS
CLASP
Diagram 5.7
JUBILEE
CLIP
REAR
CONNECTION
(within casing)
FLUE
DUCT
EXTENSION
TOP
CONNECTION
JUBILEE
CLIP
FAN ELBOW
TOP
TURRET
6791
9355
RETAINING
CLAMP
" O " RINGS
FAN ELBOW
CLAMPING
SURFACE
NIBS