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The Gas Safety (Installation And Use) Regulations: 1996 (as amended) impose certain statutory
obligations on gas users. Further information regarding these regulations can be obtained from your
Gas Supplier.
All gas appliances must be installed by competent persons by law in accordance with these
regulations. Membership of CORGI is indication of such a competent person with regard to gas
installation.
It is in your interests, and that of safety, to ensure that the appliance is installed correctly and that the
law is complied with. Failure to do so could lead to a hazardous &/or potentially dangerous situation.
Introduction
These instructions should be carefully read to ensure safe and economical
use of your boiler.
The Keston C90 and C110 are high efficiency central heating condensing
boilers designed to provide central heating and indirect sanitary hot water
supply. They are designed for use with fully pumped systems only. The C90
and C110 models are supplied for natural gas use only.
Servicing
To ensure continual safe and efficient operation of the boiler it is
recommended that the appliance be checked and serviced as necessary at
regular intervals. Generally once per year will be sufficient. It is the law that
any servicing must be carried out by a competent person.
NB:
There are no user serviceable parts inside the boiler cabinet. The
cabinet should only be removed by a qualified competent person.
Clearances
If fixtures are to positioned close to the boiler the following minimum
clearances must be observed: Top : 350 mm, Bottom : 150 mm, Left : 25 mm,
Users Instructions For C90
and C110 Models
page i
WD356/0/2003
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Related Manuals for Keston C90
Summary of Contents for Keston C90
- Page 1 The Keston C90 and C110 are high efficiency central heating condensing boilers designed to provide central heating and indirect sanitary hot water supply. They are designed for use with fully pumped systems only. The C90 and C110 models are supplied for natural gas use only.
- Page 2 To Light The Boiler The C90 and C110 boilers incorporate dual thermostats to allow two different zones to be connected to operate at two different temperatures. Generally the central heating zone is connected to zone 1 and the DHW calorifier to zone 2. You should ask your installer to advise whether your boiler serves one or two zones.
- Page 3 WD356/0/2003 After 3 seconds the displays will change to “3 nn” for zone 1 and “4 nn” for zone 2, to show the module is now alight. NG Zone 2 will be served by the left hand module only. A demand from zone 2 will only therefore be displayed on the upper display.
- Page 4 WD356/0/2003 Frost Protection The C90 and C110 have an integral frost protection thermostat. However, care should also be taken to ensure that any exposed pipework is adequately insulated to prevent freezing. Error Codes In the event of a fault causing a module shutdown the display will show an error message “E nn”.
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