Buderus 600 - 11S User manual

7209 6800 - 11/2003 GB(EN) For the user
Please read thoroughly before operating the unit
Users manual
Wall-mounted condensing gas boiler
600 - 11S / 19S / 24S / 24C
U122 K

2
Preface
Subject to modifications resulting from technical improvements!
Operating instructions for 600 - 11S /19S / 24S / 24C • Edition 11/2003
Boulter Buderus Ltd. • http://www.boulter-boilers.com
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 finish off with a dry cloth.
DO NOT use abrasive cleaning materials.

Operating Instructions
3Operating instructions for 600 - 11S /19S / 24S / 24C • Edition 11/2003
Boulter Buderus Ltd. • http://www.boulter-boilers.comSubject 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
INOTE
It is mandatory to clean and service the system
once a year ! This includes an inspection of the
entire system to see if it is in full working order.
Any faults and defects found in the course of
inspection must be rectified immediately.
It is recommended to enter into a service contract with
a specialist company.
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
The appliance should be serviced at least once a year
by a CORGI registered installer.

Operating Instructions
4
Subject to modifications resulting from technical improvements!
Operating instructions for 600 - 11S /19S / 24S / 24C • Edition 11/2003
Boulter Buderus Ltd. • http://www.boulter-boilers.com
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.
zCheck the water pressure (fig. 1, item 1).
Optimum filling pressure is 1.0 to 1.2 bar, max. water
pressure is 1.5 bar.
If pressure is below 1.0 bar, proceed as described in
“Topping up the heating system”, otherwise continue as
described in Section 6.1.3 “Temperature-setting
adjustments”.
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.
zSet three-way valve to the middle setting (applicable
for 24C only). This is done by pushing the lever on
the three-way valve (fig. 2) with a screwdriver to the
middle setting.
Fig. 1 Pressure display
Fig. 2 Three-way valve
0
4
2
bar
1
3
20
120
60
°C
12
10
01
11
KW
10
1
10
1
1
I
0
1

Operating Instructions
5Operating instructions for 600 - 11S /19S / 24S / 24C • Edition 11/2003
Boulter Buderus Ltd. • http://www.boulter-boilers.comSubject to modifications resulting from technical improvements!
zIf necessary open the CH flow and CH return
maintenance valves (fig. 3, item 1 and 2).
zConnect temporary hose (fig. 4).
zOpen both stop valves.
zFill the system to a pressure of 1.0 to 1.2 bar
(fig. 5, item 1). Max. water pressure is 1.5 bar.
zShut both stop valves and disconnect the filling loop.
Fig. 3 Maintenance shutoff valves
Fig. 4 Connecting temporary hose
Fig. 5 Pressure display
CH Flow CH Return DHW Hot (combi only) DHW Cold (combi only) Gas
12
temporary
hose
stop
valve
stop
valve
double
check
valve
DHW
cold CH return
0
4
2
bar
1
3
20
120
60
°C
12
10
01
11
KW
10
1
10
1
1
I
0
1

Operating Instructions
6
Subject to modifications resulting from technical improvements!
Operating instructions for 600 - 11S /19S / 24S / 24C • Edition 11/2003
Boulter Buderus Ltd. • http://www.boulter-boilers.com
6.1.2 Purging the heating-water circuit
zUnscrew the four screws at the top and bottom of the
ventilation cover (fig. 6, item 1) and remove the
ventilation cover.
zOpen the cap on the automatic vent unit (fig. 7) by
one turn to allow any residual air to escape.
zIf the air purging operation causes the pressure to
drop, top up with water.
zRefit the ventilation cover.
zRemove the hose from the filling and draining valve,
unscrew the hose spigot and screw the cover cap
back on.
zPurging the system at the radiator bleed-valves.
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.
Fig. 6 Remove ventilation cover
Fig. 7 Automatic air vent unit
1

Operating Instructions
7Operating instructions for 600 - 11S /19S / 24S / 24C • Edition 11/2003
Boulter Buderus Ltd. • http://www.boulter-boilers.comSubject to modifications resulting from technical improvements!
6.1.3 Temperature-setting adjustments
zSet flow temperature at the control unit (fig. 8, item 6)
(see table 1).
zSet hot-water temperature for 600 - 24 C with
integrated hot-water supply at knob (fig. 8, item 3)
(see table 2).
For energy saving (no heat-retention function) move
knob (fig. 8, item 3) to cold-start-setting “1”.
Set outlet temperature, at the same time, to 60 °C.
zSet hot-water temperature for 600 Series with
external tank at control unit (fig. 8, item 3) using
table 3.
zAdjust room temperature to maximum setting at the
control unit.
zOpen the gas service valve by pushing in and turning
anticlockwise into a vertical position (fig. 8, item 4).
zPush the mains power switch (fig. 8, item 1) to “I”.
The boiler runs through the start-up programme and
the burner is ignited after approx. 30 seconds.
zAdjust room temperature to desired setting at the
control unit.
Fig. 8 Control panel, pressure display, gas service valve,
temperature indicator
* Basic setting: Have the specific system settings of the Buderus control system and burner-control unit control panel adjusted by
a specialist heating system company.
Table 1 Flow temperature
12
10
1
01
11
KW
10
1
10
1
I
0
2
1
6
54
3
Control unit Range of application Controller position / boiler flow temperature
Buderus iRT30 Floor heating
Radiator heating
13 (48 °C, max. factory-adjusted setting for floor
heating)
17 (67 °C, min. factory-adjusted setting for radiator
heating)
ON/OFF temperature
controller, 24 V
Radiator heating 15 (58 °C, new building) up to
10 (80 °C, old building)*

Operating Instructions
8
Subject to modifications resulting from technical improvements!
Operating instructions for 600 - 11S /19S / 24S / 24C • Edition 11/2003
Boulter Buderus Ltd. • http://www.boulter-boilers.com
Tab. 2 Hot-water temperature for 600 - 24 C
Table 3 Hot-water temperature in external tanks
6.2 Combustion fuels
Natural gas or propane.
6.3 Frost hazard for the heating system
In the event of any risk of the heating system freezing
up:
zOpen the control panel cover.
zOpen cover for 2nd control box (fig. 9, item 1).
zMove switch to position “2” (pump post-purge
period 24 h) (fig. 9, item 5).
zShut cover for 2nd control box and control panel.
Fig. 9 2nd control box
Controller position DWH-storage temperature [°C] Outlet temperature [°C]
1–60
2 – 60
34040
443 43
54646
649 49
75252
855 55
95858
10 60 60
Range of application Controller position Water temperature in external tanks
Minor convenience, small heat losses 1 27 °C
Average convenience, medium heat losses 5 41 °C
Optimum convenience, normal heat losses 10 60 °C
12
10
1
01
11
KW
10
1
10
1
0
I
12
10
1
01
11
KW
10
10
1
234
5
1

Operating Instructions
9Operating instructions for 600 - 11S /19S / 24S / 24C • Edition 11/2003
Boulter Buderus Ltd. • http://www.boulter-boilers.comSubject to modifications resulting from technical improvements!
6.4 Operational and fault codes (table 4)
Operating conditions and possible faults are shown on
the display (fig. 10, item 4). The codes consists of two
characters. Press the Service button (fig. 10, item 3) to
display the second character.
All codes not contained in table 4 should be noted down
separately. These are malfunctions that require the
presence of a specialist technician.
Fig. 10 Operational and fault codes
* Flashing after three start-up attempts.
Table 4 Operational and fault codes
12
10
1
01
11
KW
10
1
10
1
0
I
12
10
1
01
11
KW
10
10
1
234
5
1
Display Display after pressing
the service button
Meaning Rectification
0 A, H, L, P, U, Y Boiler is ready for operation
6*ABurner not ignited Press reset button (fig. 10, item 2).
If the burner fails to ignite after
several unblocking operations,
consult a specialist company.
-. H Normal heating mode
=. H Normal hot water mode

Operating Instructions
10
Subject to modifications resulting from technical improvements!
Operating instructions for 600 - 11S /19S / 24S / 24C • Edition 11/2003
Boulter Buderus Ltd. • http://www.boulter-boilers.com
7 Taking the system out of
service
zOpen the control panel cover.
zPush the mains power switch (fig. 11, item 1) to “0”.
zClose the gas service valve by turning it clockwise
(fig. 11, item 2).
zClose the control panel cover.
Frost hazard for the heating system
zTurn the mains switch to “I” and leave the gas service
valve open.
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. 12).
zOpen the CH return stop valve to drain the system.
Fig. 11 Mains switch, gas service valve
Fig. 12 Draining the system
12
10
1
01
11
KW
10
1
10
1
2
1
temporary
hose
Drain
Stop
valve
Stop
valve
DHW Cold (combi only)
CH Flow
CH Return

Notes
11Operating instructions for 600 - 11S /19S / 24S / 24C • Edition 11/2003
Boulter Buderus Ltd. • http://www.boulter-boilers.comSubject to modifications resulting from technical improvements!

Heating system specialist:
Boulter Buderus Ltd.
Magnet House
Whitehouse Road
Ipswich
Suffolk, IP1 5JA
http://www.boulter-boilers.com
720.968A - 3939 - 11/2003