Glow-worm 56/3e Back Boiler - Manual (Page 15)

15 221725B
Ls
b
N
230V~50Hz
MAINS
SUPPLY
br - brown
b
- blue
g/y - green/yellow
SL - switched live
KEY
g/y
SL
br
Diagram 5.4
Diagram 5.5
6203
7884
MAINS
SUPPLY
PLUG
CONTROL
BOX
5.3 Boiler Control Box
Taking care that the POWER IS OFF, wire the incoming mains
cable to the mains plug supplied in the fittings pack. Do not
connect the mains supply plug to the control box socket, see
diagram 5.5.
NOTE: The ignition sequence is fully automatic and will
commence when mains voltage is applied.
5.4 Testing - Electrical
Checks to ensure electrical safety must be carried out by a
competent person.
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.
4. With the mains supply off. Plug the mains supply plug into the
control box socket, see diagram 5.5.
5.5 Overheat cut-off device (sealed systems
only).
A Kit No. 459033 is available with fitting instructions.
5 Electrical Wiring
LEFT HAND CLIPPING POSITIONS A and B
RIGHT HAND CLIPPING POSITIONS C and D
OVERHEAT
CUT-OFF
DEVICE
CONTROL THERMOSTAT
PHIAL
A
B
C
D
RETAINING
PIN
C