SCHUSTER BWA R50 Datenblatt
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 verication 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 efciency 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 qualied installer and/or maintenance
technician in compliance with current legislation.
The user is NOT qualied 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
4
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 efciency and its correct operation,
yearly maintenance must be performed by qualied 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 qualied and
certied in compliance with law.
Systems for the production of domestic hot water MUST be
constructed entirely with compliant materials.
By professionally qualied personnel we mean: personnel with
specic technical skill in the eld of heating system components
for civil use, domestic hot water production and maintenance.
Personnel must have the qualications 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 specic 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 qualied in compliance with law.
5
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
6
1.5 - SAFETY WARNINGS
ATTENTION!
The boiler cannot be used by children.
The boiler can be used by adults and only after having carefully read the user’s manual
Children should be supervised to ensure that they do not play or tamper with the device.
ATTENTION!
The appliance must be installed, adjusted and maintained by professionally qualied personnel, in compliance with
the standards and provisions in force. Incorrect installation can cause damage to persons, animals and objects for
which the manufacturer cannot be held responsible.
DANGER!
NEVER attempt performing maintenance or repairs on the boiler on your own initiative.
Any work must be done by professionally qualied personnel. We recommend stipulating a maintenance contract.
Insufcient or irregular maintenance can jeopardise the operating safety of the appliance and cause damage to
persons, animals and objects for which the manufacturer cannot be held responsible.
Changes to the parts connected to the boiler (once the boiler installation is complete)
Do not modify the following parts:
- the boiler
- the gas, air, water and electricity supply lines
- the ue gas pipe, the safety valve and the exhaust pipe
- the construction parts which affect the operating safety of the appliance.
Attention!
To tighten or loosen the screwed ttings, use only appropriate xed spanners.
Incompliant use and/or inappropriate tools can cause damage (e.g. water or gas leakage).
ATTENTION!
Indications for propane gas-red appliances
Make sure that the gas tank has been deaerated before installing the appliance.
For state-of-the-art tank venting, contact the LPG supplier or person qualied in compliance with the law requirement.
If the tank has not been professionally deaerated, ignition problems could arise.
In that case, contact the supplier of the LPG tank.
Smell of gas
Should a smell of gas be perceived, follow these safety guidelines:
- do not turn electric switches on or off
- do not smoke
- do not use the telephone
- close the gas shut-off valve
- air out the area where the gas leakage has occurred
- inform the gas supplier or a company specialised in installation and maintenance of heating systems.
Explosive and easily ammable substances
Do not use or store explosive or easily ammable materials (e.g. petrol, paints, paper) in the room where the ap-
pliance is installed.
ATTENZIONE!
DANGER!
Do not use the appliance as a supporting base for objects.
In particular, do not place receptacles containing liquids (Bottles, Glasses, Jars or Detergents) on top of the appliance.
If the appliance is installed inside a housing, do not insert or rest other objects inside this housing.
7
7
General information
1.6 -TECHNICAL DATA PLATE
CE marking
The CE marking certies that the boilers meet:
- The essential requirements of the gas appliance directive
(directive 2009/142/EEC)
- The essential requirements of the electromagnetic compat-
ibility directive (2004/108/EEC)
- The essential requirements of the efciency directive (92/42/
EEC)
- The essential requirements of the efciency directive (direc-
tive 2006/95/EEC)
KEY:
1 = CE monitoring body
2 = Type of boiler
3 = Boiler model
4 = Number of stars (directive 92/42 EEC)
5 = (S.N°) Serial Number
6 = P.I.N.ProductIdenticationNumber
7 = Typesofapproveduegasexhaustcongurations
8 = (NOx)NOxClass
A = Heatingcircuitcharacteristics
9 = (Pn) Effective nominal output
10 = (Pcond) Effective output in condensation
11 = (Qmax)Maximumheatoutput
12 = (AdjustedQn)Adjustedforratedheatoutput
13 = (PMS)Max.heatingoperatingpressure
14 = (Tmax)Max.heatingtemperature
B = Domestichotwatercircuitcharacteristics
15= (Qnw)Ratedheatoutputindomestichotwaterfunction(ifdifferentto
Qn)
16= (D)SpecicD.H.W.owrateaccordingtoEN625-EN13203-1
17= (Rfactor)No.oftapsaccordingtothedeclaredamountofwater(EN
13203-1)
18 = (Ffactor)No.ofstarsaccordingtothedeclaredqualityofthewater
(EN13203-1)
19 = (PMW)Max.domestichotwateroperatingpressure
20 = (Tmax)Max.domestichotwatertemperature
C = Eletricalcharacteristics
21= Electricalpowersupply
22 = Consumption
23 = Protection rating
D = Countries of destination
24 = Direct and indirect countries of destination
25 = Gas category
26 = Supply pressure
E = Factory settings
27 = Adjusted for gas type X
28 = Space for national brands
8
1.8 - BOILER ANTIFREEZE
PROTECTION ANTIFROST PROTECTION
Press the button, up to led MOFF.
1.7 - WATER TREATMENT
The treatment of the supply water allows to
prevent inconveniences and maintain the
functionality and efciency of the generator
over time.
The ideal water pH in heating systems must
be within:
To minimise corrosion, it is crucial to use
a corrosion inhibitor; in order for it to work
properly, the metal surfaces must be clean.
(see system protection ACCESSORIES sect.
in domestic price list)
ATTENTION (*) see general warnings 1.1
The heating only models are NOT suitable
for the production of water for human con-
sumption according to Ministerial Decree
D.M. 174/2004.
ATTENTION!
ANY DAMAGE TO THE BOILER CAUSED BY
THE FORMATION OF FOULING OR BY COR-
ROSIVE WATER WILL NOT BE COVERED BY
THE WARRANTY.
VALUE MIN MAX
PH 6,5 8
Hardness [°fr] 9 15
This protection can intervene only if the
electricity and gas supplies are connected.
If one of the two is not available and upon reset
11 (SR) a temperature between 2 ÷ 5°C is
detected, the appliance will behave as described
in tab. pos 2.
The heating system can be protected effectively
from frost by using antifreeze products with
inhibitor for heating systems (specific for
multidmetal)
Do not use car engine antifreeze products as
they could damage the water gaskets.
P
O
S
ANTIFREEZE FUNCTION
Power supplies 11 - SR (*) Status function
antifreeze
Actions
Electric Gas
1ON ON T < 7 °C ON - Burner and Pump ON until T > 15°C
2
ON OFF
< 2 T < 5 °C ON
Only when both the power supplies are ON:
FAULT CODE Fr (E16)
(see par. 4.6 ERROR CODES).
Ignition disabled.
OFF ON
OFF OFF
(*) Sensor 11 par. 2.2
9
9
Technical Features
BWA R 50
BWA R 70
2
2.2 -
VIEW WITH THE INDICATION OF THE MAIN COMPONENTS
TECHNICAL FEATURES AND DIMENSIONS
2.1 -TECHNICAL FEATURES
10
(*) The parts shown in gray are relative to the ACS kit.
2.3 - DIMENSIONS
Front view
View from below View from above
Side view
Dieses Handbuch passt für folgende Modelle
1
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