SCHUSTER BWA R50 Datasheet

INSTALLATION AND SERVICING MANUAL
R 50 R 70
BWA
R 50 R 70

2

Installation Instructions Technical Features General information
Maintenance instructions
4 MAINTENANCE INSTRUCTIONS......................................................................................................................................30
4.1 Inspection and maintenance instructions.................................................................................................................30
4.3 Adaptation to the use of other gas ..........................................................................................................................32
4.4 Operation parameters programming........................................................................................................................33
4.5 Wiring diagram.........................................................................................................................................................35
4.6 Error codes ..............................................................................................................................................................36
3 INSTALLATION INSTRUCTIONS .......................................................................................................................................14
3.1 General warnings......................................................................................................................................................14
3.2 Installation standards ................................................................................................................................................14
3.3 Preventive system verication and adjustment operations .......................................................................................14
3.4 Packaging .................................................................................................................................................................15
3.5 Positioning the boiler.................................................................................................................................................16
3.6 Flue gas exhaust pipe connection.............................................................................................................................17
3.7 Connections ..............................................................................................................................................................21
3.8 Filling the system ......................................................................................................................................................22
3.9 Electrical connections ..............................................................................................................................................23
3.10 Commissioning..........................................................................................................................................................25
3.11 Measurement of combustion efciency during installation........................................................................................26
3.11.1 Calibration function activation ........................................................................................................................26
3.11.2 Probes positioning..........................................................................................................................................26
3.12 Burner adjustment.....................................................................................................................................................27
3.12.1 Adaptation of the power to the heating system ..............................................................................................29
Attention: this manual contains instructions for the exclusive use of the professionally qualied installer and/or maintenance
technician in compliance with current legislation.
The user is NOT qualied to intervene on the boiler.
The manufacturer will not be held liable in case of damage to persons, animals or objects resulting from failure to comply
with the instructions contained in the manuals supplied with the boiler.
2 TECHNICAL FEATURES AND DIMENSIONS .....................................................................................................................9
2.1 Technical features......................................................................................................................................................9
2.2 Main components view and dimensions ....................................................................................................................9
2.3 Dimension................................................................................................................................................................10
2.4 Available ow rate / pressure diagram.....................................................................................................................12
2.5 Operation data .........................................................................................................................................................13
1 IGENERAL INFORMATION..................................................................................................................................................4
1.1 General warnings.......................................................................................................................................................4
1.2 Symbols used in the manual......................................................................................................................................5
1.3 Appropriate use of appliance .....................................................................................................................................5
1.4 IInformation for system manager ...............................................................................................................................5
1.5 Safety warnings .........................................................................................................................................................6
1.6 Technical data plate ..................................................................................................................................................7
1.7 Water treatment .........................................................................................................................................................8
1.8 Boiler antifreeze protection ........................................................................................................................................8

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1GENERAL INFORMATION
Any repairs must be performed solely by personnel authorised
by Schuster, using original spare parts only. Failure to comply
with the above can compromise the safety of the appliance and
void the warranty.
To guarantee appliance efciency and its correct operation,
yearly maintenance must be performed by qualied personnel.
Should you decide not to use the appliance, parts entailing
potential sources of hazard must be made safe.
Before commissioning an appliance that has not been used,
wash the domestic hot water production system, making the
water ow until it has been fully replaced.
Should the appliance be sold or transferred to a new owner or
if you move and leave the appliance, always make sure that the
instruction booklet accompanies it in order to be consulted by
the new owner and/or installer.
Only original accessories must be used for all appliances with
optionals or kits (including electric).
This appliance is intended solely for the use for which it was
expressly designed.
Any other use is to be considered improper and therefore dan-
gerous (*).
1.1 -GENERAL WARNINGS
The instruction booklet is an integral and essential part of the
product and must be kept by the user.
Read the warnings contained in this instruction booklet carefully
as they provide important guidelines regarding installation, use
and maintenance safety.
Keep the booklet with care for further consultation.
Installation and maintenance must be performed in compliance
with the standards in force according to the instructions of the
manufacturer, up to standard and by personnel qualied and
certied in compliance with law.
Systems for the production of domestic hot water MUST be
constructed entirely with compliant materials.
By professionally qualied personnel we mean: personnel with
specic technical skill in the eld of heating system components
for civil use, domestic hot water production and maintenance.
Personnel must have the qualications provided for by current
legislation.
Incorrect installation or improper maintenance can cause dam-
age to persons, animals or objects for which the manufacturer
is not responsible.
Before performing any cleaning or maintenance, disconnect the
appliance from the energy mains by acting on the switch of the
system and/or through the specic cut-off devices.
Do not obstruct the terminals of the intake/exhaust ducts.
In case of failure and/or malfunctioning of the appliance, switch
it off and do not try to repair it or intervene on it directly. Contact
only personnel qualied in compliance with law.

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1.2 -SYMBOLS USED IN THE MANUAL
Pay special attention when reading this manual to the parts marked by the symbols:
1.3 -APPROPRIATE USE OF APPLIANCE
The BWA R 50 / 70 boiler has been built according to the current level of engineering and acknowledged
technical safety rules.
Nonetheless, if improperly used, dangers could arise for the safety and life of the user and other persons
or damage to the equipment or other objects.
The appliance is designed to work in heating systems, with hot water circulation, for the production of
domestic hot water.
Any other use is considered improper.
For any damage resulting from improper use Schuster assumes no responsibility.
Use according to the intended purposes also includes strict compliance with the instructions in this manual.
The user must be instructed concerning the use and operation of his heating system, in particular:
• Deliver these instructions to the user, as well as other documents concerning the appliance inserted in the envelope
inside the packaging. The user must keep this documentation safe for future consultation.
• Inform the user about the importance of the air vents and the ue gas exhaust system, highlighting their essential
features and the absolute prohibition of modifying them.
• Inform the user concerning controlling the system’s water pressure as well as operations to restore it.
• Inform the user concerning correct temperature control, control units/thermostats and radiators for saving energy.
• Please note that, in compliance with the standards in force, the inspection and maintenance of the appliance must
be carried out in compliance with the regulations and frequency indicated by the manufacturer.
• Should the appliance be sold or transferred to a new owner or if you move and leave the appliance, always make
sure that the instruction booklet accompanies it in order to be consulted by the new owner and/or installer.
The manufacturer will not be held liable in the event of damage to persons, animals or objects resulting from
failure to comply with the instructions contained in this manual.
1.4 -INFORMATION PROVIDED TO THE USER
NOTE!
Tips
for the user
ATTENTION!
Possible dangerous
situation for the product
and the environment
DANGER!
Serious danger
to safety
and health