Glow-worm EnergySaver 80 - Manual (Page 21)

21
221837B
9 Electrical Connection
Diagram 9.1
4370 S
CONTROL
BOX
SECURING
SCREW (2)
LOCATING
SLOTS
PUSH
DOWN
PULL
SLIGHTLY
FORWARDS
AND UP
NOTE:
WARNING: This boiler must be earthed.
Remove the screws as diagram 9.1.
Pull the control box forward to release from the rear slot, allow
to pivot and place into position as shown in diagram 9.1.
Using PVC insulated cable to the current issue of BS6500 Table
16, and of a suitable length, thread the cable through the small
cable clamp and connect to the appropriate terminals, see
diagram 9.2.
Standard colours are, brown - live (L),
blue -neutral(N),
green/yellow - earth (E) .
The mains cable outer insulation must not be cut back external
to the cable clamp.
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.
It is essential that the polarity is correct.
9.1 Pump and External Controls Connection
The pump must be connected directly to the control box, as
shown in diagram 9.2.
Any external controls must only be connected to terminals 1 and
SL. after removing red link.
Thread the cable(s) through the large cable clamp in the side of
the control box.
9.2 Testing - Electrical
Checks to ensure electrical safety should be carried out by a
competent person.
In the event of an electrical fault after installation of the system,
preliminary electrical system checks as below should be carried
out:
1. Test insulation resistance to earth of mains cable.
2. Test the earth continuity and short circuit of all
cables.
3. Test the polarity of the mains.
The installer is requested to advise and give guidance to the
user of the controls scheme used with the boiler.
✽
Diagram 9.2
✽ RED LINK SL TO 1
REMOTE CONTROLS
4052 S
MAINS SUPPLY CABLE
GROMMET
PUMP AND
REMOTE
CONTROLS
GROMMET
PUMP CABLE
MAINS
SUPPLY
CABLE
SL
PL
PN
1
L
N
CHASSIS
EARTH
POST