De Dietrich BESC 300 E Owner's manual

BESC 300 E
Brand
De Dietrich
Model
BESC 300 E
Category
Heat pumps
Type
Owner's manual
BSC...E - BSP...E - BESC...E
Solar hot water calorifer
INISOL DUO E
DIETRISOL DUO E
User Guide
300027781-001-01
EN
M000773
2
BSC...E - BSP...E - BESC...E 11/05/12 - 300027781-001-01
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
1.2.4 Compliance of design and manufacture. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
1.2.5 Electrical compliance / Marking 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
2 Safety instructions and recommendations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
2.1 Safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
2.2 Recommendations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
3 Technical description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
3.1 Technical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
3.1.1 Double coil hot water tank: BSC / BSP...E. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
3.1.2 Electro-solar hot water tank: BESC...E . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
3.2 Main parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
3.3 Programming and setting the electrical back-up. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
3.4 Setting the thermostatic mixing valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
4 Diemasol A solar regulator. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
4.1 General description of how the unit operates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
4.2 Start-up. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
4.3 Adjustment keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
4.4 LED message code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
4.5 Measured values and adjustment parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
5 Checking and maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
5.1 Solar installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
5.2 Tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
5.2.1 Magnesium anodes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
5.2.2 Safety valve or safety unit (on cold water inlet) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
5.2.3 Descaling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
5.2.4 Casing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
5.2.5 Vent device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
5.3 Solar circuit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
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1Introduction
1.1 Symbols and abbreviations
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 appliance.
Danger
Risk of a dangerous situation causing serious physical
injury.
Warning
Risk of a dangerous situation causing slight physical
injury.
Caution
Risk of material damage.
Specific information.
Z
Reference
Refer to another manual or other pages in this instruction
manual.
` DHW: Domestic hot water.
1.2 General
Congratulations on choosing a De Dietrich product, a product of
quality. We strongly recommend that you read the following
instructions in order to guarantee the optimal operation of your
appliance. We are sure that you will not be disappointed and that it
will satisfy all of your expectations.
1.2.1 Manufacturer's liability
Our products are manufactured in compliance with the requirements
of the various applicable European Directives. 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.
Our liability as the manufacturer may not be invoked in the following
cases:
` Failure to abide by the instructions on using the appliance.
` Faulty or insufficient maintenance of the appliance.
` Failure to abide by the instructions on installing 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.
` Perform the initial start up and carry out any checks necessary.
` Explain the installation to the user.
` If a maintenance is necessary, 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.
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 installer to explain your installation to you.
` To carry out inspections and maintenance required by a
qualified professional.
` Keep the instruction manuals in good condition close to the
appliance.
1.2.4 Compliance of design and manufacture
This product conforms to the requirements of european directive 97 /
23 / EC, article 3, paragraph 3, on pressure equipment.
4
BSC...E - BSP...E - BESC...E 11/05/12 - 300027781-001-01
1.2.5 Electrical compliance / Marking
1
This product complies to the requirements to the european directives
and following standards:
• 2006/95/EC Low Voltage Directive
Reference Standard: EN 60.335.1.
• 2004/108/EC Electromagnetic Compatibility Directive
Reference Standards: EN 50.081.1 / EN 50.082.1 / EN 55.014.
2 Safety instructions and recommendations
2.1 Safety instructions
Any work on the installation must be done by a qualified
professional in compliance with the codes of practice and
according to the instructions provided.
2.2 Recommendations
Have the installation regularly serviced to guarantee that it operates
correctly over time.
It is essential to check the magnesium anode in the DHW tank and
the installation and heat transporting fluid pressure every two years.
Never cut the power to the solar control system, even
during extended absences. The control system protects
the installation against overheating in summer when it is
running.
During extended absences, we recommend lowering the set
point temperature in the solar DHW calorifier to 50°C. When the
user is present, the set point must be set to 60°C.
Never drain the installation. Do not replace or add water or
solar fluid to the installation. These actions must be carried
out by a qualified technician.
Do not modify the control system parameters unless fully
conversant with them.
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11/05/12 - 300027781-001-01 BSC...E - BSP...E - BESC...E
3 Technical description
3.1 Technical specifications
3.1.1 Double coil hot water tank: BSC / BSP...E
BSC 300 E BSP 300 E BSP 400 E BSP 500 E
Water content
litres 300 300 370 500
Top up volume
litres 104 104 132 183
Solar volume
litres 196 196 238 317
Max operating pressure, DHW
bar 7 10 10 10
Boiler heat exchanger
Maximum operating temperature
°C 90 90 90 90
Maximum operating pressure
bar 10101010
Water content
litres 4.3 4.3 4.9 4.9
Exchange surface
m
2
0.65 0.65 0.72 0.72
Pressure drop
kPa 3.0 3.0 3.4 3.4
Solar exchanger
Water content
litres 8.9 8.9 8.9 11.1
Exchange surface
m
2
1.2 1.2 1.2 1.5
Performance
Primary temperature at 70 °C
Power exchanged
(1) (3)
kW 16 16 17.5 17.5
Flow per hour
(1) (3)
l/h 390 390 430 430
Primary temperature at 80 °C
Power exchanged
(1) (3)
kW 21 21 23 23
Flow per hour
(1) (3)
l/h 515 515 565 565
Flow in 10 minutes
(2) (3)
l/10 mm 190 190 240 335
Primary temperature at 90 °C
Power exchanged
(1) (3)
kW 26 26 29 29
Flow per hour
(1) (3)
l/h 640 640 712 712
Cooling constant Cr *
Wh/24h·L·K 0.20 0.20 0.19 0.15
* Only in France
(1) Domestic cold water inlet 10 °C - Domestic hot water outlet 45 °C - Primary flow rate 2 m
3
/h
(2) Domestic cold water inlet 10 °C - Domestic hot water outlet 40 °C - Domestic hot water storage temperature 65 °C - Primary flow rate 2 m
3
/h
(3) Values measured only on the back-up volume
6
BSC...E - BSP...E - BESC...E 11/05/12 - 300027781-001-01
3.1.2 Electro-solar hot water tank: BESC...E
Composition of the NF CESI INISOL DUO solar systems packages (for France only)
Check the composition of the CESI solar system, which complies
with the requirements of the NF CESI mark, using the table below.
The references and packages listed must be shown on the invoice for
the system sold by the installer.
A system is complete and functional according to the NF CESI mark
if all system references appear on the invoice.
The system is composed of the following elements:
• A collector field with 1, 2 or 3 solar collectors.
• A solar domestic hot water tank to which a solar station
incorporating a heating pump, an expansion vessel and a
Diemasol A control system is to be mounted.
• The solar fluid that protects the installation from frost and
corrosion.
The system is delivered to the installer in two units: a roof pack
containing the collectors, their mounting system and the hydraulic
connections on the one hand, and a cellar pack containing the
calorifier, the system components and the solar fluid on the other
hand.
BESC 300 E BESC 400 E BESC 500 E
Water content
litres 300 370 500
Top up volume
litres 130 160 210
Solar volume
litres 170 210 290
Max operating pressure, DHW
bar 7 7 7
Solar exchanger
Water content
litres 8.9 8.9 11.1
Exchange surface
m
2
1.2 1.2 1.5
Electrical back-up
Output of the electrical back-up
kW 2.4 3.0 3.5
Reheating time from 15 to 60°C
2 h 50 min 2 h 50 min 3 h 10 min
Cooling constant Cr *
Wh/24h·L·K 0.20 0.19 0.15
* Only in France
CESI System Array of collectors Domestic hot water production Solar fluid
Number of
panels
Type of mounting
package /
Reference
DHW calorifier type
package /
Reference
Volume
(litres)
Back-up type
package /
Reference
INISOL DUO/1
300-4
2On roof
ER 154
100014076
BESC 300 E
EC 332
100006750
300 Electric
EG 101
89807794
2
Roof-integral
Installation
(> 20°)
ER 155
100014077
2
Roof-integral
Installation
(17°)
ER 231
100014741
INISOL DUO/1
300-4
(Full package)
2On roof
ER 210
100015850
BESC 300 E
Included in
the full
package
300 Electric
Included in
the full
package
2
Roof-integral
Installation
(> 20°)
ER 211
100015851
2
Roof-integral
Installation
(17°)
ER 214
100016110
7
11/05/12 - 300027781-001-01 BSC...E - BSP...E - BESC...E
INISOL DUO/1
300-6
3On roof
ER 156
100014078
BESC 300 E
EC 332
100006750
300 Electric
EG 101
89807794
3
Roof-integral
Installation
(> 20°)
ER 157
100014079
3
Roof-integral
Installation
(17°)
ER 232
100014742
INISOL DUO/1
400-4
2On roof
ER 154
100014076
BESC 400 E
EC 335
100006753
400 Electric
EG 101
89807794
2
Roof-integral
Installation
(> 20°)
ER 155
100014077
2
Roof-integral
Installation
(17°)
ER 231
100014741
INISOL DUO/1
400-6
3On roof
ER 156
100014078
BESC 400 E
EC 335
100006753
400 Electric
EG 101
89807794
3
Roof-integral
Installation
(> 20°)
ER 157
100014079
3
Roof-integral
Installation
(17°)
ER 232
100014742
INISOL DUO/2
300-4
2On roof
ER 154
100014076
BSC 300 E
EC 333
100006751
300 Boiler
EG 101
89807794
2
Roof-integral
Installation
(> 20°)
ER 155
100014077
2
Roof-integral
Installation
(17°)
ER 231
100014741
INISOL DUO/2
300-4
(Full package)
2On roof
ER 212
100015852
BSC 300 E
Included in
the full
package
300 Boiler
Included in
the full
package
2
Roof-integral
Installation
(> 20°)
ER 213
100015853
2
Roof-integral
Installation
(17°)
ER 215
100016111
INISOL DUO/2
300-6
3On roof
ER 156
100014078
BSC 300 E
EC 333
100006751
300 Boiler
EG 101
89807794
3
Roof-integral
Installation
(> 20°)
ER 157
100014079
3
Roof-integral
Installation
(17°)
ER 232
100014742
CESI System Array of collectors Domestic hot water production Solar fluid
Number of
panels
Type of mounting
package /
Reference
DHW calorifier type
package /
Reference
Volume
(litres)
Back-up type
package /
Reference
8
BSC...E - BSP...E - BESC...E 11/05/12 - 300027781-001-01
Composition of the NF CESI DIETRISOL DUO solar systems packages (for France only)
Check the composition of the CESI solar system, which complies
with the requirements of the NF CESI mark, using the table below.
The references and packages listed must be shown on the invoice for
the system sold by the installer.
A system is complete and functional according to the NF CESI mark
if all system references appear on the invoice.
The system is composed of the following elements:
• A collector field with 1, 2 or 3 solar collectors.
• A solar domestic hot water tank to which a solar station
incorporating a heating pump, an expansion vessel and a
Diemasol A control system is to be mounted.
• The solar fluid that protects the installation from frost and
corrosion.
The system is delivered to the installer in two units: a roof pack
containing the collectors, their mounting system and the hydraulic
connections on the one hand, and a cellar pack containing the
calorifier, the system components and the solar fluid on the other
hand..
INISOL DUO/2
400-4
2On roof
ER 154
100014076
BSP 400 E
EC 336
100006754
400 Boiler
EG 101
89807794
2
Roof-integral
Installation
(> 20°)
ER 155
100014077
2
Roof-integral
Installation
(17°)
ER 231
100014741
INISOL DUO/2
400-6
3On roof
ER 156
100014078
BSP 400 E
EC 336
100006754
400 Boiler
EG 101
89807794
3
Roof-integral
Installation
(> 20°)
ER 157
100014079
3
Roof-integral
Installation
(17°)
ER 232
100014742
CESI System Array of collectors Domestic hot water production Solar fluid
Number of
panels
Type of mounting
package /
Reference
DHW calorifier type
package /
Reference
Volume
(litres)
Back-up type
package /
Reference
CESI System Array of collectors Domestic hot water production Solar fluid
Number of
panels
Type of mounting
package /
Reference
DHW calorifier type
package /
Reference
Volume
(litres)
Back-up type
package /
Reference
DIETRISOL DUO
E 300-4
2
On roof
(mechanical tiles -
Universal hook)
ER 432
100019695
BESC 300 E
EC 332
100006750
300 Electric
EG 100
89807792
2
On roof
(Slates)
ER 433
100019696
2
On roof
(mechanical tiles -
On rafter)
ER 434
100019697
2
Roof-integral
Installation
(> 20°)
(mechanical tiles)
ER 442
100019705
2
Roof-integral
Installation
(> 20°)
(Slates / Flat tile)
ER 446
100019709
9
11/05/12 - 300027781-001-01 BSC...E - BSP...E - BESC...E
DIETRISOL DUO/
1 300-5
2
On roof
(Delivered
vertically)
EC 521
100007869
BESC 300 E
EC 332
100006750
300 Electric
EG 100
89807792
2
On roof
(Delivered
horizontally)
EC 580
100009302
2
Roof-integral
Installation
(> 20°)
(Delivered
vertically)
EC 531
100007879
2
Roof-integral
Installation
(> 20°)
(Delivered
horizontally)
EC 586
100009308
DIETRISOL DUO
E 400-4
2
On roof
(mechanical tiles -
Universal hook)
ER 432
100019695
BESC 400 E
EC 335
100006753
400 Electric
EG 100
89807792
2
On roof
(Slates)
ER 433
100019696
2
On roof
(mechanical tiles -
On rafter)
ER 434
100019697
2
Roof-integral
Installation
(> 20°)
(mechanical tiles)
ER 442
100019705
2
Roof-integral
Installation
(> 20°)
(Slates / Flat tile)
ER 446
100019709
DIETRISOL DUO/
1 400-5
2
On roof
(Delivered
vertically)
EC 521
100007869
BESC 400 E
EC 335
100006753
400 Electric
EG 100
89807792
2
On roof
(Delivered
horizontally)
EC 580
100009302
2
Roof-integral
Installation
(> 20°)
(Delivered
vertically)
EC 531
100007879
2
Roof-integral
Installation
(> 20°)
(Delivered
horizontally)
EC 586
100009308
CESI System Array of collectors Domestic hot water production Solar fluid
Number of
panels
Type of mounting
package /
Reference
DHW calorifier type
package /
Reference
Volume
(litres)
Back-up type
package /
Reference
10
BSC...E - BSP...E - BESC...E 11/05/12 - 300027781-001-01
DIETRISOL DUO
E 400-6
3
On roof
(mechanical tiles -
Universal hook)
ER 435
100019698
BESC 400 E
EC 335
100006753
400 Electric
EG 100
89807792
3
On roof
(Slates)
ER 436
100019699
3
On roof
(mechanical tiles -
On rafter)
ER 437
100019700
3
Roof-integral
Installation
(> 20°)
(mechanical tiles)
ER 443
100019706
3
Roof-integral
Installation
(> 20°)
(Slates / Flat tile)
ER 447
100019710
DIETRISOL DUO
300-4
2
On roof
(mechanical tiles -
Universal hook)
ER 432
100019695
BESC 300 E
EC 332
100006750
300 Electric
EG 100
89807792
2
On roof
(Slates)
ER 433
100019696
2
On roof
(mechanical tiles -
On rafter)
ER 434
100019697
2
Roof-integral
Installation
(> 20°)
(mechanical tiles)
ER 442
100019705
2
Roof-integral
Installation
(> 20°)
(Slates / Flat tile)
ER 446
100019709
DIETRISOL DUO/
2 300-5
2
On roof
(Delivered
vertically)
EC 521
100007869
BSC 300 E
EC 333
100006751
300 Boiler
EG 100
89807792
2
On roof
(Delivered
horizontally)
EC 580
100009302
2
Roof-integral
Installation
(> 20°)
(Delivered
vertically)
EC 531
100007879
2
Roof-integral
Installation
(> 20°)
(Delivered
horizontally)
EC 586
100009308
CESI System Array of collectors Domestic hot water production Solar fluid
Number of
panels
Type of mounting
package /
Reference
DHW calorifier type
package /
Reference
Volume
(litres)
Back-up type
package /
Reference
11
11/05/12 - 300027781-001-01 BSC...E - BSP...E - BESC...E
DIETRISOL DUO
400-4
2
On roof
(mechanical tiles -
Universal hook)
ER 432
100019695
BSP 400 E
EC 336
100006754
400 Electric
EG 100
89807792
2
On roof
(Slates)
ER 433
100019696
2
On roof
(mechanical tiles -
On rafter)
ER 434
100019697
2
Roof-integral
Installation
(> 20°)
(mechanical tiles)
ER 442
100019705
2
Roof-integral
Installation
(> 20°)
(Slates / Flat tile)
ER 446
100019709
DIETRISOL DUO/
2 400-5
2
On roof
(Delivered
vertically)
EC 521
100007869
BSP 400 E
EC 336
100006754
400 Boiler
EG 100
89807792
2
On roof
(Delivered
horizontally)
EC 580
100009302
2
Roof-integral
Installation
(> 20°)
(Delivered
vertically)
EC 531
100007879
2
Roof-integral
Installation
(> 20°)
(Delivered
horizontally)
EC 586
100009308
DIETRISOL DUO
400-6
3
On roof
(mechanical tiles -
Universal hook)
ER 435
100019698
BSP 400 E
EC 336
100006754
400 Electric
EG 100
89807792
3
On roof
(Slates)
ER 436
100019699
3
On roof
(mechanical tiles -
On rafter)
ER 437
100019700
3
Roof-integral
Installation
(> 20°)
(mechanical tiles)
ER 443
100019706
3
Roof-integral
Installation
(> 20°)
(Slates / Flat tile)
ER 447
100019710
CESI System Array of collectors Domestic hot water production Solar fluid
Number of
panels
Type of mounting
package /
Reference
DHW calorifier type
package /
Reference
Volume
(litres)
Back-up type
package /
Reference
12
BSC...E - BSP...E - BESC...E 11/05/12 - 300027781-001-01
3.2 Main parts
Solar hot water calorifer
- Tank in enamelled steel
- Solar coil
- Electrical resistor for heating the water
- Insulation in CFC-free polyurethane foam
-
Casing: Painted sheet steel
Solar station
The solar heating pump unit comprises the solar circuit safety unit, a
pressure and temperature gauge and a flowmeter to visualise
circulation of the solar fluid between the panels and the DHW tank.
An expansion vessel is connected to the solar unit; it is used to
compensate for the expansion of the solar fluid in which the
temperature varies between 0 and 150°C.
Diemasol A regulator
The control system is the solar system's brain; it makes the solar
heating pump run at variable speeds according to the difference in
temperature between the bottom of the DHW tank and the solar
panels. The control system manages the set point temperature
(temperature to be attained in the DHW tank), overheating and
nighttime cooling. The control system also displays the various
operating modes, the temperatures in the collectors and in the
bottom of the DHW tank, as well as signalling any malfunctions.
3.3 Programming and setting the electrical back-up
The temperature of the volume of water heated by the electrical
resistor is set by the installer on commissioning of the installation
according to the size of the home.
Using the programming device installed in the electrical panel, it is
possible to adjust the volume of water heated to 40°C by the resistor
in two ways:
` By forcing contunuous heating by the resistor (off-peak hours
contact) for significant unforeseen needs.
` By programming the heating time outside off-peak periods (2
hours maximum according to the DHW volume at 40°C
required) to compensate for the lack of sunshine in winter, for
example. With a back-up, the programmed period is set in the
factory to between 16 h and 18 h, i.e. at the end of the day when
the solar contribution is less and just before the draw-off period.
Ves 40 settings table
Ves 40: Volume of hot water at 40°C
3.4 Setting the thermostatic mixing valve
28. Domestic cold water inlet
57. DHW tank domestic hot water outlet
BESC 300 E BESC 400 E
Ves 40 off-peak hours only (by 55°C) 190 litres 230 litres
40 off-peak hours + 2 peak hours (by 55°C) 350 litres 435 litres
Ves 40 off-peak hours only (by 60°C) 220 litres 270 litres
40 off-peak hours + 2 peak hours (by 60°C) 380 litres 470 litres
C003732-A
57
28
13
11/05/12 - 300027781-001-01 BSC...E - BSP...E - BESC...E
The mixing valve is set in the factory for a DHW outlet temperature of
60°C (position 6). To lower this temperature, remove the top cover
and turn the wheel anti-clockwise. In position 1, the outlet
temperature is lowered to 35°C.
14
BSC...E - BSP...E - BESC...E 11/05/12 - 300027781-001-01
4 Diemasol A solar regulator
4.1 General description of how the unit operates
In automatic mode, the Diemasol A regulator operates in accordance
with the following principles:
` The sun's rays heat the transfer fluid in the collector. For the
regulation process to be triggered, a minimum temperature of
30 °C is required in the collector and there must be a
temperature difference of 10 K by comparison with the tank.
` During the AUTO-calibration stage which follows (tu parameter
setting tu, factory setting 1 minute) the PUMPE (relay) operates
to its full extent (100%).
` Subsequently, the solar pump regime is calculated dynamically
depending on a difference between the reference temperature
(parameter DT, factory setting 20 K) and the calorifier
temperature.
` Depending on the heat available, the system heats up the solar
tank and cuts off when the tank storage temperature is reached
(adjustment parameter SX, factory setting: 60 °C)..
4.2 Start-up
%
If the temperature in the solar collectors is higher
than 130°C, the control system operates in safety mode.
Wait until the evening before start-up or cool down (cover)
the solar collectors.
Switch on the device. The regulator starts an initialisation phase
during which the LED flashes red and green. When initialisation is
complete, the regulator changes to automatic mode. The factory
settings for this mode give optimum performance with most
installations.
If special conditions make it necessary to change the settings, the
corresponding adjustment parameters can be reset.
M000392
M000391
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11/05/12 - 300027781-001-01 BSC...E - BSP...E - BESC...E
4.3 Adjustment keys
The regulator is controlled by the 3 keys only located below the
display.
The right-hand key (1) takes you to the next menu or increases the
adjustment values.
The left-hand key (2) does the opposite.
The adjustment parameters are displayed after the measured values.
To access these parameters, press and hold the right-hand key for 2
sec. from parameter TC. When the display shows an adjustment
parameter, the word SET appears. To set the value displayed, press
the middle button (3).
1. Select the required parameter using keys 1 and 2.
2. Press the 3 key: The word SET flashes.
3. Adjust the value using keys 1 and 2.
4. Press the 3 key: The set value is stored. The word SET stops
flashing.
4.4 LED message code
Continuously green
Regulation operating normally (System Operating). Solar system
Operating. The temperature of the hot water tank (parameter TS)
increases.
Continuously red
The installation is stopped. The solar collectors are not hot enough
(parameter TC) to enable operation.
Flashing green/red
- Initialisation phase
- Sensor fault.
See chapter Sensor fault.
- The installation is in manual mode.
Set the regulator to automatic mode.
- Maximum tank temperature exceeded.
The hot water tank has reached the set temperature and the
installation is in overheating safety mode or in cooling mode.
- Maximum temperature of the solar collectors exceeded.
The installation is in safety mode. It remains in this mode until the
temperature of the solar collectors has fallen back below the
maximum temperature.
1
3
2
DiemasolA_0004
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BSC...E - BSP...E - BESC...E 11/05/12 - 300027781-001-01
4.5 Measured values and adjustment parameters
*with S3 sensor only (optional)
*
The regulator has a safety system that cuts off the tank at
temperatures of over 80°C.
Measured value TC - Collector temperature
The value TC shows the temperature in °C given by the collector
sensor in real time.
Measured value TS - DHW sensor temperature
The value TS shows the temperature in °C given by the tank sensor
in real time
Measured value kWh - Amount of heat
The value kWh shows in kWh the total amount of heat produced by
the installation since the regulator was put into service.
The quantity of heat (kWh value) can only be used for checks
carried out for personal reasons.
Measured value tc - Self-calibration time
The value tc shows the self-calibration phase time remaining in
seconds. During the self-calibration phase, the pump operates at full
speed (100 %); its speed is only controlled after the self-calibration
phase.
Channel Abbreviation Range Increment Factory setting
Collector temperature
TC [-50.0 ... 250.0] °C - -
Calorifier temperature
TS [-50.0 ... 250.0] °C - -
Amount of heat
kWh [0 ... 9999] kWh - -
Pump regime
PC [0 ... 100] % - -
Self-calibration time
tc [0 ... 5] minutes - -
Reference temperature difference
DT [10 ... 20] K 0.1 20
Set temperature of the solar calorifier
SX [20 ... 80] °C 0.1 60
Maximum collector temperature
CX [100 ... 125] °C 0.1 100 °C
Self-calibration phase
tu [1 ... 5] minutes 1 1
Pump minimum speed
PN [50 ... 100] % 5 50
Tubular solar collector function
FT [0 ... 1] 1 0
Maximum flow rate
Fx [0 … 20] l/min 0.1 6.7
Manual mode
MM [0 ... 2] 1 2
Measured values
Adjustment parameter
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Adjustment parameter DT - Reference
temperature difference
Adjustment range: 10 ... 20 K
Factory setting: 20 K
Switching-on difference: Non-adjustable value 10 K
Switching-off difference: Non-adjustable value 5 K
The regulator reads the temperatures measured by sensors S1 (TC)
and S2 (TS) and compares the resulting temperature difference with
the switching-on difference which is preset to 10 K. Regulation is
activated when the temperature difference ∆T is equal to or greater
than the preset value. The display shows . The LED changes to
green. When the value falls below the preset 5 K switching-off
difference, the regulator switches off. The regulator tries to achieve a
temperature difference of 20 K (factory setting) between the collector
and the tank to produce high temperature hot water as rapidly as
possible. To do this, it uses dynamic speed control.
Adjustment parameter SX - Set temperature of the
solar calorifier
Adjustment range: 20 ... 80 °C
Factory setting: 60 °C
Maximum tank temperature (emergency cut-off): Non-
adjustable value 80 °C
The set temperature Sx is the desired temperature for the solar
calorifier.
If the maximum tank temperature is exceeded, tank heating is
interrupted to prevent damage due to overheating. The display
shows and (flashing) and the LED changes to flashing red/
green.
The higher the set temperature for the calorifier, the greater the
energy stored. Setting to 60 ... 75°C is suitable for normal use with
daily draw-offs.
In the event of prolonged absences (weekend, holidays):
- Reduce the calorifier temperature to 50°C
- Turn off the back-up (boiler or electrical resistance)
The installation is thus protected against overheating and the
longevity of the heat conducting fluid is conserved.
M000393
M000395
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Adjustment parameter CX - Maximum collector
temperature
Adjustment range: 100 ... 125 °C
Factory setting: 100 °C
Maximum collector temperature (overheating safety): Non-
adjustable value: 130 °C.
If the temperature in the collector rises above its maximum
temperature CX even though the solar circuit is stopped (tank set
storage temperature reached), the solar pump (R1) switches on and
cools the collector (system cooling). In these conditions, the tank
temperature rises, but it can't exceed 80 °C (safety cut-off).
If the calorifier reaches the maximum temperature of 80°C (safety
shutdown), the regulator switches off the solar pump.
The collectors may reach a temperature of 160 ... 200°C, which
is normal for a solar installation.
The cooling functions allows heat to dissipate; the system thus
remains operational longer during hot summers. When it leaves the
factory, the collector's maximum temperature is preset to 100 °C;
however, it is possible to change this within the range 100 ... 125 °C.
If the maximum collector temperature is exceeded, the display shows
, and (flashing) and the LED changes to flashing red/
green.
Adjustment parameter tu - Self-calibration phase
Adjustment range: 1 ... 5 minutes
Factory setting: 1 minutes
When the solar collector reaches a minimum temperature of 30 °C
and a preset temperature difference of 10 K from the tank
temperature, the regulator switches on the solar circulating pump at
full speed for the time period set by parameter tu. During this phase,
any air bubbles present in the solar collectors or the pipes are moved
to the complete solar station by the high circulation speed in the pipes
and eliminated by the Airstop system (manual bleed degasser). After
this phase, the regulator changes to "matched flow" mode. The
remaining self-calibration time is displayed with parameter tc.
Adjustment parameter PN - Pump minimum
speed
Adjustment range: 50 ... 100%
Factory setting: 50%
Adjustment parameter PN sets a minimum value for the solar pump
speed at the relay R1 output. The lower the pump regime, the lower
its flow.
M000396
M000397
M000398
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Adjustment parameter FT - Tubular solar collector
function
Adjustment range: 0/1
Factory setting: 0
0: no
1: yes
If the regulator detects a temperature rise in the collector of 2 K
compared to the last measurement, the solar pump runs at full speed
for 30 seconds to measure the current average temperature.
The measured temperature thus becomes the new reference
temperature.
If the measured temperature (new reference) then increases again
by 2 K, the solar pump starts again for 30 seconds.
The regulator switches automatically to solar heating mode if the
temperature difference between the collector and the calorifer
exceeds the switching-on temperature difference when the solar
pump is operating or the system is stopped.
If the collector temperature falls by 2 K while the system is stopped,
the tubular solar collector activation temperature is rechecked.
Adjustment parameter Fx - Maximum flow rate
Adjustment range: 0 ... 20 l/min
Factory setting: 6.7
In order for the regulator to calculate the quantity of heat produced by
the installation (parameter kWh), input parameter Fx. The parameter
Fx is equal to the flow in litres per minute in the solar circuit.
Determine the value Fx using the following tables, according to the
configuration of the installation and the number or surface area of the
collectors. When the flow is input incorrectly, the display kWh will also
be incorrect.
The quantity of heat (kWh value) can only be used for checks
carried out for personal reasons.
Adjustment parameter MM - Operating mode
Adjustment range: 0 ... 2
Factory setting: 2
For inspection and maintenance work, it is possible to operate the
regulator in manual mode. To operate the regulator in manual mode,
it is necessary to input parameter MM from the following table.
Flat solar panels
Solar panel
installation
Area
m
2
Number of
panels
Flow rate
l/h
Flow rate
l/min
3 ... 5 1 or 2 400 6.7
6 ... 8 3 or 4 300 5
M000399
M000400
Tubular solar panels
Number of panels
Flow rate
l/h
Flow rate
l/min
minimum: 1x4 820 13.7
1x5 750 12.5
1x6 680 11.4
MM R1 LED
0 Open Flashing green/red
1 Closed Flashing green/red
2 automatic automatic
M000401
20
BSC...E - BSP...E - BESC...E 11/05/12 - 300027781-001-01
5 Checking and maintenance
5.1 Solar installation
We recommend that you take out a preventive maintenance contract
to check the fluid level, antifreeze protection, pressure in the system,
leak test and general operation every year or every two years.
5.2 Tank
5.2.1 Magnesium anodes
Have the condition of the anode checked after the first year. The
magnesium anode must be checked by a qualified professional at
least every 2 years. After the first check, determine the frequency of
future checks on the basis of anode wear.
5.2.2 Safety valve or safety unit (on cold water inlet)
The valve or safety assembly must be operated at least once a
month in order to ensure that it is operating correctly and to prevent
possible overpressure which would damage the DHW tank.
5.2.3 Descaling
In hard water regions, it is advisable to ask the fitter to descale the
DHW tank exchanger once a year in order to maintain its level of
performance.
5.2.4 Casing
The casing of the DHW tank can be cleaned with soapy water.
5.2.5 Vent device
If the vent device is not used, the installer must check the seal on the
top vent connection.
5.3 Solar circuit
To check operation of the solar system, consult the display on the
control system. A steady red indicator light in fine weather indicates
a malfunction.
The pressure in the solar circuit can be checked on the solar station's
pressure gauge. If the pressure shown is lower than 0.5 bar, call the
installer.
Never carry out work on the solar circuit yourself. Never
work on the safety valve yourself.
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De Dietrich BESC 300 E Owner's manual

BESC 300 E
Brand
De Dietrich
Model
BESC 300 E
Category
Heat pumps
Type
Owner's manual
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