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WD274/1/2002
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 C40 and C55 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 C40
and C55 models are supplied for natural gas use only. The C40P and C55P
models are supplied for LPG 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 : 150 mm, Bottom : 150 mm, Left : 25 mm, Right :
25 mm & Front : 305 mm. Extended clearance is required to the front to allow for
access for servicing.
Users Instructions For C40,
C40P, C55 and C55P Models
page i
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Summary of Contents for Keston C40
- Page 1 The Keston C40 and C55 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 C40 and C55 models are supplied for natural gas use only. The C40P and C55P models are supplied for LPG only.
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Page 2: Boiler Setup
To Light The Boiler The C40 and C55 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 hot water cylinder to zone 2. -
Page 3: Frost Protection
Frost Protection The C40 and C55 have an integral frost protection thermostat. However, care should also be taken to ensure that any exposed pipework is adequately insulated to prevent freezing. -
Page 4: Gas Leak Or Fault
BENCHMARK INITIATIVE As part of the industry wide “Benchmark” Initiative all C40 and C55 boilers now include a Benchmark Installation, Commissioning and Service Record Log Book. This log book should be completed by your installer at the end of the installation and commissioning process.