Benchmark Buderus 600-28C User manual

7212 8000 - 02/2006 GB/IE (EN) For the user
Please read thoroughly before operating the unit
Users manual
Gas wall hung Boiler condensing
Buderus 600 - 28C

Preface
2
Buderus • http://www.buderus-domestic.co.uk
Users manual for Buderus 600 - 28C • Edition 02/2006
Subject to modifications resulting from technical improvements!
Introduction
Please read these instructions and follow them carefully
for a safe and economical use of your boiler.
Important general instructions for use
This device should only be used for its intended purpose
and in accordance with the operating instructions.
It is the law and in your own interest, and that of safety
that this boiler must be installed by a CORGI registered
installer, in accordance with the relevant requirements of
the current Gas Safety (Installation and Use)
Regulations, The Building Regulations, current I.E.E.
Wiring Regulations and the relevant British Standard
Codes of Practice.
The device may only be used in combination with the
units, accessories and spare parts listed in the
installation and servicing instructions.
Other combinations of units, accessories and
consumables are only to be used if they completely fulfil
the specifications involved, and if system performance
and safety are not affected in any way.
Subject to technical modifications
As a result of our policy of constant development,
there may be small differences with respect to
illustrations, functional steps and technical data.
Cleaning
For normal cleaning simply dust with a dry cloth.
To remove stubborn marks and stains, wipe with a damp
cloth and soap and finish off with a dry cloth.
DO NOT use abrasive cleaning materials.
G. C. Aplliance No. :
Buderus 600 - 28C 47-110-02

Users manual
3Users manual for Buderus 600 - 28C • Edition 02/2006
Buderus • http://www.buderus-domestic.co.ukSubject to modifications resulting from technical improvements!
Dear Customer,
Your Buderus 600 Series wall-mounted condensing gas
boiler has been designed and built in accordance with
state-of-the-art technological standards and the
recognised safety rules. Special focus has been placed
on operator convenience in this respect.
Carefully read the safety instructions and operating
manual to ensure safe, economic and ecologically
beneficial use of the unit.
Due to the high efficiency of the boiler a plume of water
vapour may form at the terminal during operation.
This is normal.
1 Safety precautions
ADANGER!
If you smell gas:
1. No naked flames ! Do not smoke !
2. Avoid sparks !
Do not operate electrical switches.
Do not use the telephone, plug-in devices of
any kind or the doorbell!
3. Shut off the main gas supply!
4. Open windows and doors!
5. Warn building occupants and evacuate the
building!
6. Call TRANSCO (under 'GAS' in the telephone
directory) from outside the building!
INOTE
In the event of any other type of incident, shut off
the main gas supply and electric supply to the
appliance and seek assistance from a CORGI
registered engineer.
2 Installation area / boiler
room
ADANGER!
The air intake and outlet openings must not be
reduced in size or closed.
ADANGER!
Do not store or use inflammable materials or
liquids near the heating boiler.
INOTE
To prevent the boiler from being damaged, care
must be taken not to contaminate the
combustion air with halogenated hydrocarbons
(e. g. contained in aerosol sprays, solvents,
detergents, paints, and adhesives), or with high
quantities of dust. The room in which the boiler
is installed must be frost-proof and be well
ventilated.
3 Working in the heating
system
ADANGER !
Only a CORGI registered Engineer is to be
entrusted with the installation of this boiler, the
gas supply and the flue connection.
Commissioning, Servicing and any Repairs
must be carried out by a competent person i.e.:
a CORGI Registered Engineer.
All CORGI Registered Installers carry a CORGI
identification card and have a registration
number. Both should be recorded in your boiler
logbook. You can check your installer/Engineer
is registered by telephoning 01256 372300 or by
writing to:
CORGI, 1 Elmwood, Chineham Business Park,
Crockford Lane, Basingstoke. RG24 8WG
4 Functions of the system
and operating instructions
The installer should familiarize the user with the
functions and operation of the heating system and
ensure that a complete set of technical documentation is
supplied.
5 Maintenance intervals
For optimum, long-term reliable functioning of the
heating boiler, and in order to be able to claim under the
terms of the manufacturer's warranty, the heating boiler
must be inspected and maintained at least once a year
(under normal operating conditions) by an officially
recognized installation and service engineer. The term
"normal operating conditions" means that the heating
boiler is used to provide central heating and/or hot water
to no more than one single-family dwelling.
In all other cases, the heating boiler must be inspected
and maintained by an officially recognised installation
service engineer every 2,500 burner operating hours.

Users manual
4
Subject to modifications resulting from technical improvements!
Users manual for Buderus 600 - 28C • Edition 02/2006
Buderus • http://www.buderus-domestic.co.uk
6 Initial start-up
6.1 Preparing for operation
Please note also the operating instructions supplied
with the control unit.
6.1.1 Check water pressure
zOpen the control panel cover (fig. 1).
zPress the service button until the system pressure
"P1.1" appears in the display.
Optimum filling pressure is 1.5 bar.
6.1.2 Topping up the heating system
AWARNING!
The wall-mounted condensing gas boiler must
not be activated at this stage.
The system should be filled with untreated mains water.
zPress the service button (fig. 2, item 1) until the
system pressure "P1.1" appears in the display (fig. 2,
item 2).
zIf necessary open the CH flow and CH return
maintenance valves (fig. 3, item 1 and 2).
Fig. 1 Control panel
Fig. 2 BC 10
Fig. 3 Maintenance valves
1
2
CH Flow CH Return DHW Hot (combi only) DHW Cold (combi only) Gas
1
2

Users manual
5Users manual for Buderus 600 - 28C • Edition 02/2006
Buderus • http://www.buderus-domestic.co.ukSubject to modifications resulting from technical improvements!
zConnect temporary hose (fig. 4).
zOpen both stop valves.
zFill the system to a pressure of approx. 1.5 bar
(fig. 5, item 2).
zShut both stop valves and disconnect the filling loop.
zPurge all radiators from air starting downstairs and
working your way up.
zCheck the pressure after purging. If the pressure has
dropped under 1.0 bar then top up the system as
described previously.
INOTE
If there are frequent water losses, have the
system examined and repaired by a CORGI
registered installer.
Have the inhibitor concentration checked every
year.
6.1.3 Temperature-setting adjustments
Setting the flow temperature (fig. 5, item 3)
The knob with the radiator symbol (fig. 5, item 3) allows
the installer to set the maximum flow temperature (see
table 1). When the boiler is in operation for central
heating then the LED "CH operation" (fig. 5, item 5) is lit.
Setting the domestic hot water temperature
(fig. 5, item 2)
Turn the knob with the tap symbol (fig. 5, item 1) to the
desired temperature for your domestic hot water (see
table 2).
Set the knob to "Eco" when the boiler is situated in an
area with hard water to prevent scaling as much as
possible.
When the boiler is in operation for domestic hot water,
the LED "DHW operation is on (fig. 5, item 4).
6.2 Combustion fuels
Natural gas, propane.
Fig. 4 Temporary hose
Fig. 5 BC10; adjustments
Setting Function Description
0 off Central heating
function is switched
off.
30 - 90 Flow temperature in °C.
However the boiler is capped off
at 80 °C. This means that positi-
on 80 is 80 °C, but also position
90 is 80 °C.
Aut. Do not use this setting
Table 1 Flow temperature
Setting Function Description
0 off DHW is turned off
Eco Energy saving setting The heat
retaining temperature of the hot
water tank is 26 °C and the out-
let temperature of the hot water
tank is 60 °C.
minimal comfort,
minimal energy con-
sumption, minimal
calcification.
30 - 60 Desired temperature of the heat
retaining temperature of the hot
water tank and the outlet tempe-
rature of the hot water tank.
Maximum comfort
when set at 60° C
Aut. Do not use this setting
Table 2 Domestic hot water temperature
temporary
hose
stop
valve
stop
valve
double
check
valve
DHW
cold CH return
2
13
45

Users manual
6
Subject to modifications resulting from technical improvements!
Users manual for Buderus 600 - 28C • Edition 02/2006
Buderus • http://www.buderus-domestic.co.uk
6.3 Frost hazard for the heating system
INOTE
Normally set by commisioning Engineer.
zPress the chimney sweep button and the service
button (see fig. 6, item 2 and 3) simultaneously until
"L--" appears in the display.
zPress the service button repeatedly until for example
“F5” appears in the display. “F5” means that the
pump run over time is currently set at 5 minutes.
This is the factory setting.
zAdjust the pump run over time by pressing the
chimney sweep button to reduce the run over time of
the pump and the reset button to increase the pump
run over time. The range is 0 min to 60 min. (F 0..F60)
and 24 hours (F1d).
zSet the pump run over time to "F1d" (fig. 6, item 4)
when there is a frost hazard.
zConfirm the selection by pressing the service button
(fig. 6, item 3).
6.4 Operational and fault codes
Operating conditions and possible faults are shown on
the display (fig. 6, item 4). The codes consists of two
characters.
All codes not contained in table 3 should be noted down
separately. These are malfunctions that require the
presence of a specialist technician.
Fig. 6 BC10; frost hazard
Display
after
pressing
service
button
Meaning Rectification
0A, 0C, 0H,
0L, 0U, 0Y
Boiler is ready for
operation
6A Burner not ignited Press reset button (fig. 6, item 1).
If the burner fails to ignite after
several unblocking operations,
consult a specialist company.
-H Normal heating
mode
Maximum comfort when set at
60° C
=H Normal hot water
mode
Table 3 Operational and fault codes
4
123

Users manual
7Users manual for Buderus 600 - 28C • Edition 02/2006
Buderus • http://www.buderus-domestic.co.ukSubject to modifications resulting from technical improvements!
7 Taking the system out of
service
zOpen the control panel cover (see fig. 1).
zPush the mains power switch (fig. 7, item 1) to “0”.
zClose the gas service valve by turning it clockwise
(fig. 8, item 1).
zClose the control panel cover (fig. 1).
Frost hazard for the heating system
zTurn the mains switch to “I” (fig. 7, item 1) and leave
the gas service valve open (fig. 8, item 2).
zAdjust room temperature to minimum (or frost-
protection) setting at regulating device or on remote
control unit.
INOTE
If you intend to shut down the system fully under
frost hazard conditions, note that the system
must be drained entirely of water.
7.1 Draining the system
zClose the DHW cold and the CH return valve.
zConnect temporary hose (fig. 9).
zOpen the CH return stop valve to drain the system.
Fig. 7 BC10; Mains power switch
Fig. 8 Gas service valve
Pos. 1: Gas valve closed
Pos. 2: Gas valve open
Fig. 9 Draining the system
1
2
1
Drain
Stop
valve
CH Flow CH Return DHW Cold
Stop
valve
temporary
hose
Drain

Heating system specialist:
Buderus
Cotswold Way
Warndon
Worcester
WR4 9SW
Telephone: 01905 - 752 936
Fax: 01905 - 753 130
http://www.buderus-domestic.co.uk
Buderus is a trading name of BBT Thermotechnology UK Ltd.
Customer Services:
Technical Product Support:
Sales:
Returns:
Spares:
Tel: 0870 - 421 5933
Tel: 0870 - 421 5944
Tel: 01905 - 752 640
Tel: 01905 - 752 531
Tel: 01905 - 752 576
Fax: 01905 - 456 445 / 455 394
Fax: 01905 - 455 392
Fax: 01905 - 754 620
721.280A - 4612 - 02/2006