12
1.8 Electrical
Connections
This appliance must be earthed.
Supply 230V 50Hz single phase.
Standard heater 116W. Herringbone 16W.
Current rating 0.55 amp max (inductive).
Fuse: external 3 amp.
All electrical work should be carried out to
IEE standards by a competent electrician.
The electrical connection to the heater is made
by means of a three pin plug-in power
connector. Live, neutral and earth connections
should be made via a flexible supply cable to
the power connector and routed clear of the
heater or tubes.
The flexible supply cables should be of 0.5mm²
and comply with BS 6500:2000. The
wires in the mains lead are coloured
in accordance with the following
code: Green & Yellow Earth; Blue
Neutral; Brown Live
It is recommended the heater or
group of heaters are controlled by
thermostats, a time switch and if
required manual control switches
and a frost thermostat.
We recommend use of AmbiRad approved
controls.
Please refer to control manual for
siting and installation details.
Where alternative manufactures controls are
used, please refer to their instructions for their
siting and installation details.
Table 4 Gas Supply Pressures
Gas Category
I2H
I3P
Gas Type
Natural Gas (G20)
Propane (G31)
Max Supply Pressure (mbar)
25
45
Min Supply Pressure (mbar)
17
25
Nominal Pressure (mbar)
20
37
Gas Supply
Connection R½ ½in BSP Internal Thread
Figure 9.a Typical VSUT/VSAUT Wiring Connections
Fan plugs into burner
Fused Spur
fig.f
fig.g
The methods shown in fig.f and fig.g are unacceptable, due to undue stress on the hose & fittings.
Fused Spur
Figure 9.b Typical VSLF/VSALF Wiring Connections
Fan plugs into burner