General Information; General Description - Worcester 26CDi Xtra User Instructions & Customer Care Manual

GENERAL
INFORMATION
GAS SAFETY (INSTALLATION AND USE)
REGULATIONS 1998
It is the law that all gas appliances must be installed by a competent person in
accordance with the above regulations. Failure to install appliances correctly could
lead to prosecution. It is in your interest and that of safety to ensure compliance
with the law. The manufacturers notes must not be taken, in any way, as overriding
statutory obligations.
WARNING: This appliance must be earthed and protected by a 3 amp fuse.
ELECTRICITY SUPPLY: 230V ~ 50Hz
IMPORTANT: To get the best from your Worcester 26CDi Xtra please read
these instructions carefully.
NOTE: In the event of a fault the appliance should not be used until the fault
has been corrected by a competent person.
BENCHMARK
The Benchmark initiative is a code of practice to encourage the correct
installation, commissioning and servicing of domestic central heating boilers and
system equipment.
A 'log book' is dispatched with every appliance, This is a vital document
that needs to be completed by the installer at the time of installation. It confirms
that the boiler has been installed and commissioned according to the
manufacturers instructions.
All CORGI Registered Installers carry a CORGI ID card and have a
registration number. Both should be recorded in your central heating log book. You
can check that your installer is CORGI registered by calling CORGI on 01256 372300.
Without the completion of the log book, manufacturers may refuse to
respond to a call-out request. It is important that your installer has given you the
fully completed log book.

GENERAL DESCRIPTION

(See Fig.1.)
The WORCESTER 26CDi Xtra is a condensing, combined domestic hot water
and central heating appliance. It consists of a gas fired boiler with a secondary, high
efficient heat exchanger, having a varying output of between 6.7 kW and 26 kW. A
water to water heat exchanger to provide domestic hot water via the boiler,
circulating pump and water diverting valve. All the necessary controls to provide
mains fed domestic hot water and central heating.
The appliances are supplied as standard with a manual operating
switch. Alternatively a facia mounted programmer may have been fitted.
The appliance can operate in one of two modes. Hot water only or hot water
and central heating.
PLUMING: Because the appliance operates at high efficiency a white
plume of condensate will be emitted from the flue terminal which is fitted
outside the dwelling. The pluming will be more noticeable during cooler weather
and will occur every time the appliance is used.
Hot Water Mode:
When a demand is made for hot water by opening a tap or shower, the flow
switch will energise the pump and circulate primary hot water around the boiler and
water to water heat exchanger. The burner will light at its maximum setting.
When hot water is no longer required the appliance pump and fan may
continue to operate to dissipate the residual heat within the boiler.
A flow restrictor is fitted within the appliance which limits a hot water
delivery rate to a maximum of 9.0 (±15%) litres/minute (2.0 gallons/minute).
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