5 boiler installation – Glow-worm Micron 70FF User Manual

Page 15

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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

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