Materials & boiler assembling
The boiler is supplied as standard with the cast iron
sections assembled. The boiler blocks can be split and
reassembled at site to special order. Each section is tested
hydraulically for soundness in accordance with EN303.
The insulation and steel jacket is already fitted to the boiler.
The boiler control panel and burner are packed separately
for fitting on site.
Site assembling should only be undertaken by Carnot or
their authorised engineer. All insulating and refractory
materials are included, with ceramic sealing ropes for all
access doors.
Handling
Offloading, dry storing and placing of equipment in the
boiler room is the responsibility of the installer.
Equipment must be dry stored and protected from frost.
Cartons must not be crushed or otherwise damaged.
Commissioning
Carnot undertake commissioning of boilers.
General information
Description
CKRS cast iron sectional boilers are designed for use in either open vented or pressurised heating systems up to 6 bar
working pressure with gas, oil or dual fuel burners. There are five models in the range 75 kW to 145 kW. The boiler has a
pressurised combustion chamber and matched burners offered are all capable of overcoming the boiler resistance without
the assistance of the chimney.
These are 3-pass boilers and comply with the efficiency requirements of ADL2: 2013 of The Building Regulations.
Application
CKRS boilers are made from Grade GG20 cast iron and conform with the requirements of EN 303. The boilers are
suitable for use in LTHW heating systems with a maximum operating pressure of 6 bar and maximum temperature of
90
o
C.
CKRS boilers may be fired by Natural gas, LPG, Class D or Class C oil with 1 or 2-stage control.
The boiler is suitable for use in either open vented or pressurised heating systems. It is not suitable for use as a direct
water heater. Where potable water is required, a matching calorifier or plate heat exchanger must be provided in the
system.
Statutory requirements
CKRS boilers are CE marked and must be fired by a compatible burner certified to EN267 (oil firing) or EN676 (gas firing)
to comply with the Boiler (Efficiency) Directive 1993.
The installation, assembling and commissioning of the boiler must be carried out by a qualified engineer in accordance
with the instructions provided.
Gas supplies and gas burners must be installed and commissioned by a qualified person, eg. a Gas Safe registered
engineer.
Commissioning charges do not include servicing during the
guarantee period. This may be carried out under service
contract or to specific order.
Boiler log book
A permanent record of commissioning and servicing data
and measurements should be kept in the building log book.
It should be kept safe and updated whenever routine or
emergency work is performed on the boiler.
Guarantee
Subject to correct handling, installation and operation, all
equipment is guaranteed for twelve months from the date
of despatch. Boiler sections are guaranteed for a period of
five years from the date of despatch.
The guarantee is not valid if the boiler is subjected to
thermal stress, becomes blocked with debris and/or
carbonate deposits from the system water and/or there is
no documented evidence of commissioning by a
competent engineer.
Fig 1 3-pass operation of boiler
FLOW
RETURN
Second pass
Third pass
EDS801/3 page2