
SOLNEO
Gas fired condensing boiler
SGC 24 SOL
EN
C001764
User Guide
300017555-001-C

.
Contents
1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
1.1 Symbols and abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
1.2 General. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
1.2.1 Manufacturer's liability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.2.2 Installer's liability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
1.2.3 User's liability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
1.3 Certifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
2 Safety instructions and recommendations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
2.1 Safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
2.1.1 Fire hazard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
2.1.2 Risk of being burnt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
2.2 Recommendations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
3 Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
3.1 General description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
3.2 Control panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
3.3 Parameter display - Diemasol A solar regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
4 Operating instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
4.1 Start the boiler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
4.2 Description of the parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
4.3 Changing the settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
4.3.1 Selecting the operating mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
4.3.2 Changing the heating temperature. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
4.3.3 Changing the domestic hot water temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
4.4 Stopping the boiler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
4.5 Prolonged absence. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
4.5.1 Switching off the appliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
4.5.2 Antifreeze protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
5 Checking and maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
5.1 General instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
5.2 Periodic checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
5.3 Topping up the boiler with water (If the option is connected) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
5.4 Bleeding the heating system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
5.5 Draining the installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
6 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
6.1 Breakdown codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
6.1.1 Safety alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
6.1.2 Sensor alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
6.2 Before contacting the installer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
6.3 Incidents and solutions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
6.3.1 The burner is not working. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
6.3.2 The burner is operating but the radiators are cold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
6.3.3 The domestic hot water does not appear hot enough . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
6.3.4 Hot water takes a very long time to reach certain draw-off points and not others . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
7 Technical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
8 Energy savings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
8.1 Energy-saving advice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
8.2 Room thermostat and settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
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SGC 24 SOL 15/10/2009 - 300017555-001-C

1 Introduction
1.1 Symbols and abbreviations
1. Introduction
In these instructions, various markings and pictograms are used to
draw your attention to particular information. In so doing,
De Dietrich Thermique S.A.S. wishes to safeguard the user's safety,
obviate hazards and guarantee correct operation of the boiler.
CRC: Communicating remote controller
CFC: Chlorofluorocarbon
DHW: Domestic hot water
1.2 General
1.2.1 Manufacturer's liability
Our products are manufactured in compliance with the essential
requirements of the various Directives applicable. They are therefore
delivered with 1 marking and all relevant documentation.
In the interest of customers, we are continuously endeavouring to
make improvements in product quality. All the specifications stated in
this document are therefore subject to change without notice.
Caution danger
Risk of injury and damage to equipment.
Attention must be paid to the warnings on safety of
persons and equipment.
Important information
Information must be kept in mind to maintain comfort.
Reference
Z
Refer to another manual or other pages in this instruction
manual.
Our liability as the manufacturer may not be invoked in the following
cases:
` Incorrect use of the appliance.
` Faulty or insufficient maintenance of the appliance.
` Incorrect installation of the appliance.
1.2.2 Installer's liability
The installer is responsible for the installation and inital start up of the
appliance.
The installer must respect the following instructions:
` Read and follow the instructions given in the manuals provided
with the appliance.
` Carry out installation in compliance with the prevailing
legislation and standards.
1.2.3 User's liability
To ensure the optimum operation of your appliance, we strongly
recommend that you abide by the following instructions:
` Read and follow the instructions given in the manuals provided
with the appliance.
` Call on qualified professionals to carry out installation and initial
start up.
` Get your fitter to explain your installation to you.
` Have the required checks and services done.
` Keep the instruction manuals in good condition close to the
appliance.
` Perform the initial start up and carry out any checks necessary.
` Explain the installation to the user.
` Warn the user of the obligation to check the appliance and
maintain it in good working order.
` Give all the instruction manuals to the user.
This appliance is not intended to be used by persons (including
children) whose physcial, sensory or mental capacity is impaired or
persons with no experience or knowledge, unless they have the
benefit, through the intermediary of a person responsible for their
safety, of supervision or prior instructions regarding use of the
appliance. Care should be taken to ensure that children do not play
with the appliance.
15/10/2009 - 300017555-001-C SGC 24 SOL
3

1. Introduction
1.3 Certifications
CE identification no CE-0085BQ0052
Type of connection Chimney: B
Forced flue: C
Ignition Automatic
* Except Belgium and France
(x) For Germany only
23P
- B
13(x)
33
- C
33(x)
- C
43(x)
- C53 - C
63(x) *
- C
83(x)
- C
93(x)
4
SGC 24 SOL 15/10/2009 - 300017555-001-C

2. Safety instructions and recommendations
2 Safety instructions and recommendations
2.1 Safety instructions
2.1.1 Fire hazard
DANGER
If you smell gas:
1. Do not use a bare flame, do not smoke, do not actuate electrical
contacts or switches ( doorbell, light, motor, lift, etc..).
2. Cut the gas supply.
3. Open the windows.
4. Evacuate the premises.
5. Call your fitter.
2.1.2 Risk of being burnt
DANGER
Depending on the settings of the appliance:
` The temperature of the flue gas conduits may exceed 60°C.
` The temperature of the radiators may reach 95°C.
2.2 Recommendations
The installation and the first start-up must be performed by a qualified
professional.
Only qualified professionals are authorised to work on the
appliance and the instalation.
DANGER
If you smell flue gases:
1. Switch the appliance off
2. Open the windows.
3. Evacuate the premises
4. Call your fitter
` The temperature of the domestic hot water may reach 65°C.
Avoid direct contact with the flame viewport.
Aeration
The air inlet into the premises must in no event be obstructed, even
partially.
Maintenance
` Regularly check the water pressure in the installation (minimum
pressure 0.8 bar, recommended pressure between 1.5 and 2
bar).
` Keep the appliance accessible at all times.
` Never remove or cover labels and rating plates affixed to the
appliance. Labels and rating plates must be legible throughout
the entire lifetime of the appliance.
15/10/2009 - 300017555-001-C SGC 24 SOL
The servicing and cleaning of the boiler and the sweeping of the flue
gas pipe and the bleed pot must be done at least once a year by a
qualified professional.
We recommend that you take out a maintenance contract.
The boiler is fitted with an antifreeze system. In the event of total
shutdown of the heating in winter which may lead to the danger of
freezing (switching off of radiators and current), we recommend using
a correctly dosed anti-freeze product to stop the heating water
freezing. Failing this, drain the installation completely (in all cases,
consult your fitter).
Do not neglect to service the appliance:
For completely safe and optimum operation, you must
have your boiler regularly serviced by an approved
installer.
Precautions against frost
5

3. Description
3 Description
3.1 General description
The SGC 24 SOL solar column is a multi-energy unit which includes
a gas-fired condensing boiler and a 200-litre solar domestic hot water
tank in the same casing.
The boiler is preset in the factory to operate on natural gases H and
E (Operating pressure: 20 mbar).
The boiler is fitted with a system to protect against overheating.
3.2 Control panel
1
2
Position Key Description
1 Alphanumeric LCD display Displays the settings for the solar circuit.
2
3 > Moves to the next menu or increases the value of a setting.
4
N Temperature display The display shows the temperature of the water in the domestic hot water heating outlet when there is
I
O
4
< Returns to the previous menu or reduces the value of a setting.
SET Allows the displayed parameter to be accessed and modified.
Domestic hot water temperature
maintenance override button
3
a request for domestic hot water.
For SGC 24 SOL with Easymatic or Easyradio remote control:
Pressing the button for 1 second makes it possible to override domestic hot water tank loading
outside the time period programmed in the control unit up to midnight (indicator light O2 flash).
- Light O1 lit : The burner is ignited to reheat the domestic hot water tank.
- Light O2 off : No override or programme running.
- Light O2 lit : Comfort programme activated.
C001771B
For SGC 24 SOL without remote control:
Light O1 lit : The burner is ignited to reheat the domestic hot water tank.
A power cut does not modify the selected operating mode.
P Safety shutdown light Indicates an error in the boiler.
Q
R
6
Unlock button To restart the boiler after safety shutdown.
Button Used only in measurement 8888, installer K and sweep M mode.
H
S Button Used only in sweep mode M.
SGC 24 SOL 15/10/2009 - 300017555-001-C