Mains Supply - Worcester GREENSTAR 12i Instruction Manual

10

MAINS SUPPLY

INSTALLATION & SERVICING INSTRUCTIONS FOR WORCESTER GREENSTAR 12i/24i System
MAINS SUPPLY
ELECTRIC SUPPLY:
• Supply: 230V - 50Hz, 140 watts
2
• Cable: PVC insulated 0.75mm
temperature rated to 90°C.
• External 3A fuse to BS1362.
• The appliance must be earthed.
• This appliance must not be connected to a
three phase supply.
• IPX4D.
NOTE: this is reduced to IP20 if the
following mechanical timers are fitted:
7 716 192 036 or 7 716 192 037.
• Wiring must comply with latest IEE wiring
regulations.
GAS SUPPLY:
• Boilers using NG must be connected to a
governed meter.
• LPG boilers must be connected to a
regulator.
• Installation and connection of the gas supply
to the boiler must be in accordance with
BS6891.
• The meter or regulator and pipework to the
meter must be checked, preferably by the gas
supplier, to ensure it is in good working order
and can meet the gas flow and pressure
requirements in addition to the demand from
any other appliance being served.
24 iSystem
• Under no circumstances should the size of
the gas supply pipe be less than 22mm.
GAS SUPPLY PIPE SIZING
12 iSystem models
Provided that the correct gas supply working
pressure and gas rate can be achieved (see
technical data on page 6, commissioning sec-
tion page 35, also refer to B.S. 6891)
Then it may be possible to reduce the gas
supply pipe diameter to 15mm.
Generally the appliance would need to be within
3 to 4 metres of the gas meter. However, this
will depend upon the distribution pipe size and
route.
8 716 115 167b (03/2009)
(24 x 0.2mm)