Wolf COB - Energy Saving Tips; Heating Mode Savings

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To save energy and protect against scaling
if the total hardness is greater than 15 °dH
(2.5mol/m³),theDHWtemperaturemaybeset
to a maximum of 50 °C.
If the total hardness is greater than 20 °dH
(3.58mol/m³), we recommend using a water
treatmentfacilityinthecoldwatersupplyline
forDHWheating,toprolongthemaintenance
interval(descalingDHWheatexchanger).
COB / COB-TS oil condensing boiler
Two-stage oil condensing boiler with electronic ignition and
electronic ue gas monitoring, for low temperature heating
and DHW heating in heating systems with ow temperatures
of up to 85 °C and a permissible operating pressure of 3 bar.
The COB complies with the following regulations:
EC Directives:
- 92/42/EEC Efciency Directive
- 2004/108/EC EMC Directive
- 2006/95/EC Low Voltage Directive
DIN / EN Standards:
EN 230, EN 303, EN 304, EN 15034, EN 15035, EN 12828,
EN 61000-3-2, EN 61000-3-3, EN 61000-4-3, EN 55014-1,
EN 60335-1, EN 60335-2-102, EN 60529
Stratication cylinder type TS made of steel S235JR with
connections to the on-site pipework.
Corrosion protection through enamel coating on the inside
of the cylinder as per DIN 4753 and additional corrosion
protection through a protective magnesium anode.
Openueoilcondensingboilersmustonlybe
installed in a room which complies with the
appropriateventilationrequirements.Otherwise
there is a risk of asphyxiation or poisoning.
Read these installation and maintenance
instructions before installing the boiler. Also
take the technical guide into consideration.
Note: The DHW temperature should be limited to a
maximum of 55 °C if the hardness of the hot
water is more than 2.86 mmol/l. A reduced DHW
temperature prevents excessive scaling. This
cutsthelevelofmaintenanceandenergyinput.
6. Standards and regulations
Obtainthepermissionofyourlocaluegasinspectorand
thelowerwaterauthoritypriortotheinstallationofWolf
oil condensing boilers.
Wolf oil condensing boilers must only be installed by a
recognised heating contractor. This heating contractor
will also be responsible for the proper installation and the
commissioning of the heating system. The DVGW Code of
Practice G676, boiler room guidelines or Building Regulations
relating to the construction and installation of central boiler
rooms and fuel storage facilities apply.
Thefollowingregulations,rulesandguidelinesmustbe
observedduringinstallation:
- Energy Savings Act (EnEG) and related directives
- EnEV Energy Savings Order
- Technical regulations for oil installations IWO-TRÖL 2006
in the currently applicable version
Note: Pleasereadtheseinstructionscarefullybefore
the installation and keep them in a safe place.
Please also note the technical information in
the appendix.
Any damage or loss resulting from technical
modicationstothecontrolunitortothecontrol
componentsareexcludedfromourliability.
- DIN 1988 Technical rules for DHW installations
- DIN EN 12831 Procedure for calculating the standard
heating load
- EN 12828 Heating systems in buildings
Designing DHW heating systems
- DIN 4701 Rules for calculating the heat demand of
buildings
-
DIN 4751 Part 3 Safety equipment for heating systems with ow
temperatures of up to 95 °C
- DIN 18160 Flue gas systems
- DIN EN 1717 Protection of DHW against contamination in
DHW installations
- ATV-A-251 Materials for drain pipes for condensate from
condensing boilers
- VDI 2035 Avoiding damage in DHW heating systems
Scaling in general water and DHW heating
systems
Local regulations from building and
industry regulatory agencies (mainly covered
by the local ue gas inspector)
- DIN VDE 0100 Regulations regarding the installation of
high-voltage systems with rated voltages up
to 1000 V
- VDE 0105 Operation of high-voltage systems, general
considerations
- DIN EN 60529 Protection through casings