Glow-worm Swift flow 100 Installation Instructions Manual page 17

9.1 Supply Cable Connection
CAUTION. To prevent an induced current from
switching the central heating on, when not required, it is
important that the heating system control cables are
separated from the other mains supply cables.
The boiler requires a permanent mains supply through an
isolator which must also isolate any heating system
controls, see diagram 9.1.
Any heating system controls must not interrupt the
permanent mains supply to the boiler.
Remove the electrical connector from the loose items
pack.
Remove the two screws and cover from the connector,
see diagram 9.2.
Using PVC cable of suitable length and rating as stated
in Section 1.9, connect the mains supply cable to the
appropriate terminals of the connector, see diagram 9.1.
Standard colours are, Brown - Live; Blue - Neutral;
Green and Yellow - Earth.
The mains cable outer insulation must not be cut back
external to the plug, see diagram 9.2.
Make the earth cable of a greater length so that if the
cable is strained the earth would be the last to become
disconnected.
CAUTION. It is essential that the polarity is correct.
9.2 Heating System Controls
CAUTION. To prevent an induced current from
switching the central heating on, when not required,
it is important that the heating system control cables are
separated from the other mains supply cables.
It is recommended that the heating system is controlled
by a Room Thermostat, (controls must be mains voltage
or potential free), or by thermostatic radiator valves.
A time clock should be connected to terminals 1 & 2 as
shown in diagram 9.2. If a time clock is not available
terminals 1 & 2 can be linked to live and neutral in the
connector, this, however, would mean that the central
heating would be under control of the ON/OFF switch of
the appliance.
The mains cable outer insulation must not be cut back
external to the plug.
9.3 Frost Thermostat
If the installation requires protection by a "frost
thermostat", connect a single pole type, to the
appropriate terminals of the connector.
9.4 Cable and Connector Securing
After completing all the connections to the boiler, secure
the cable(s) with the cover, using the two screws
previously removed, see diagram 9.2.
9 E l e c t r i c a l C o n n e c t i o n s
RED LINK.
REMOVE WHEN
CONNECTING ANY
HEATING SYSTEM
CONTROLS
(3) (L)
CLOCK
TIME
CONTROL
JUNCTION
BOX
3 AMP
FUSE
DOUBLE
POLE
ISOLATOR
240V~50Hz
PERMANENT
L
MAINS SUPPLY
ELECTRICITY SUPPLY CONNECTIONS
1
2
E
N
L
3
COVER
SCREW (2)
17
TO BOILER
5 POLE CONNECTOR ON
MOUNTING FRAME
(N) (E) (2)
SWITCH
CONTACTS
N E Diagram 9.1
EXTERNAL TIME
CLOCK WIRED
INTO TERMINALS
1 & 2
MAINS
CABLE
CABLE
CLAMP
Diagram 9.2
221017B
(1)