Technical data

2
USER INSTRUCTIONS
INTRODUCTION
The Combitek F 23 E is a wall mounted combination
boiler providing central heating and instantaneous
domestic hot water.
These instructions should be carefully followed for
the safe and economical use of your boiler.
Gas leak or fault
If a gas leak or fault exists or is suspected, turn the
boiler and gas supply off and consult the local gas
company or your Installer/Service provider.
In case of power supply failure
The boiler no longer operates.
As soon as power supply is restored, the boiler will
restart automatically.
In case of loss of water in the system
CAUTION. The boiler is installed as part of a sealed
system which must only be drained and filled by a
competent person.
If the pressure shown on the pressure gauge is less
than 1.5 bar the system must be filled up.
Important notice: A central heating system cannot
operate satisfactorily unless it is properly filled with
water and unless the air initially contained in the
piping systems has been properly bled off. If these
conditions are not satisfied, air noise will occur within
the system and the boiler may fail to operate.
Air in the heating system
Persistent air in the heating system may indicate
leaks in the system or corrosion taking place. Call
your Installer/Service provider.
Overheating safety
In the event of problem, the overheat safety device
causes safety shutdown of the boiler. If this happens,
call your Installer/Service provider.
INSTALLATION AND SERVICING INSTRUCTIONS
COMBITEK F 23 E
Mandatory warning for CE countries
WARNING, these appliances were designed, approved and inspected to meet the requirements of the
English market. The identification plate located on the inside of the appliance certifies the origin where the
product was manufactured and the country for which it is intended.
If you see any exception to this rule, please contact your nearest stockist.
Thank you in advance for your assistance.
UK
Note: The boiler serial number is marked on the data label attached to the PCB housing behind the front
lower section. Refer to the ‘Introduction’ section for a description of the basic functions of the boiler. The
‘User’ section describes how to safely operate the boiler.
Users’ Instructions
Introduction ..................................................... Page 2
Controls and lighting ................................................. 3
Draining and filling ..................................................... 3
Heating safety valve ................................................. 3
Servicing/maintenance ............................................ 3
Cleaning ..................................................................... 4
Boiler casing ............................................................... 4
Installation Instructions
Introduction ..................................................... Page 4
Changing gas type ................................................... 4
Technical data......................................................4 - 5
Dimensions .................................................................. 5
Boiler schematic ........................................................ 6
Terminal positions ....................................................... 7
Heating and hot water system design .................... 7
Boiler installation ........................................................ 8
Horizontal flue installation ......................................... 9
Vertical flue installation ........................................... 10
Electrical connection .............................................. 11
Commissioning ......................................................... 12
Adjustments .............................................................. 13
Safety device ........................................................... 13
Setting ....................................................................... 14
Servicing Instructions
Routine cleaning and inspection ............... Page 15
Replacement of parts ...................................... 16 - 21
Schematic wiring diagram ..................................... 22
Fault finding .......................................................23 - 24
Spare sparts .............................................................. 24