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Oil fired condensing boilers COB / COB-CS

Oil fired condensing boilers COB / COB-CS
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Oil fired condensing boilers COB / COB-CS

Product catalog summary
Overview: The document provides an in-depth look at the Wolf COB series oil-fired condensing boilers, focusing on the COB-20 model. These boilers are designed for central heating and can be paired with various cylinder options to enhance domestic hot water (DHW) heating capabilities.
Key Features:
  • High efficiency with standard efficiency ratings up to 105% (Hi) and 99% (Hs).
  • Low power demand, compatible with low sulphur and standard fuel oil EL.
  • Equipped with a two-stage blue flame burner for flexible flue operation.
  • Durable heat exchanger constructed from aluminium-silicone alloy.
  • Compact design allows for easy wall mounting and front access for maintenance.
  • Comes with a 5-year warranty on the boiler and a 2-year warranty on electrical and moving parts.
Specifications:
  • Rated output varies by model, with the COB-20 offering 18.5/28.2 kW at 80/60 °C.
  • Details on oil throughput and rated load for different stages are provided.
  • Standard efficiency and performance metrics are detailed for various temperatures and loads.
  • Includes physical dimensions, weight, and connection specifications.
Control and Accessories:
  • Standard controls include ON/OFF reset, temperature selectors, and status indicators.
  • Optional control accessories such as mixer modules, solar modules, and programming modules enhance system management.
  • Installation accessories are recommended for optimal connection to heating systems.
Installation and Operation:
  • Details on balanced flue routing options and types of connections for various installation scenarios.
  • Central heating and DHW heating options include configurations with solar cylinders and buffer cylinders for improved energy efficiency.
Solar DHW and Central Heating System: The document also outlines components and specifications for a solar domestic hot water (DHW) heating and central heating system with a stratification cylinder BSP. It includes details on modules, sensors, and control units necessary for efficient operation.
Main Components:
  • Collector Array: Captures solar energy for heating.
  • Air Vent Trap: Removes air from the system to maintain efficiency.
  • Sensors: Includes collector and cylinder sensors for monitoring temperature and performance.
  • Solar Module SM1: Regulates one solar circuit, including temperature differential control.
  • Stratification Cylinder BSP: Stores and stratifies heated water for optimal energy use.
  • Fresh Water Module: Provides domestic hot water heating.
  • Mixing Valve Circuit Assembly: Manages water mixing to achieve desired temperatures.
  • Condensing Boiler COB: An oil-fired boiler with electronic ignition and flue gas monitoring, compliant with EU directives.
Specifications:
  • Boiler Compliance: Tested according to DIN EN standards and EU directives for efficiency, low voltage, and electromagnetic compatibility.
  • Operating Conditions: Suitable for low temperature heating systems up to 85°C and 3 bar pressure.
  • Heat Exchanger: Made from a robust aluminium-silicon alloy.
Control Units and Accessories:
  • Standard Control Unit: Integrated and ready for combination with weather-compensated controllers.
  • Programming Module BM: Includes weather-compensated thermostat and time programs.
  • Mixer Module MM: Regulates one mixer circuit with weather-compensated temperature control.
  • Solar Module SM2: Manages solar heating systems with up to two cylinders and collector fields.
  • Cascade Module KM: Regulates systems with low loss headers or multiple boilers.
  • Radio Clock Module: Includes a wireless outside temperature sensor.
Additional Accessories:
  • Balanced flue systems, connection sets, and safety assemblies for various configurations.
  • Condensate lifting and neutralising systems for integration within the boiler.
Conclusion: Wolf GmbH offers a comprehensive range of heating solutions suitable for commercial and industrial applications, emphasizing ease of operation, energy efficiency, and reliability. Their systems are designed for easy integration and maintenance, supporting both new installations and modernization projects.
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Catalog excerpts

Oil fired condensing boilers COB / COB-CS-1

Technical documentation Oil fired condensing boilers COB for central heating • COB-CS for central heating with stratification cylinder TESTSIEGER GUT (1,6) Ölbrennwertkessel COB-20 Im Test: 10 Ölbrennwertkessel, davon zwei Testsieger mit Note 1,6 Ausgabe 5/2008

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Oil fired condensing boilers COB / COB-CS-2

Oil fired condensing boiler COB for central heating; can be combined with a freestanding cylinder, e.g. SEM-1 / SEM-2 Oil fired condensing boiler COB-CS for central heating; with enamelled steel stratification cylinder The benefits of the Wolf oil fired condensing boilers: • Extremely clean and efficient combustion with complete condensation of the flue gases and high standard efficiency up to 105% (Hi) / 99% (Hs) for the best possible energy utilisation • Low power demand • Suitable for low sulphur and standard fuel oil EL • Two-stage blue flame burner for open and balanced flue operation •...

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Oil fired condensing boilers COB / COB-CS-4

Standard controls ON / OFF Reset button Heating water temperature selector Thermometer Illuminated ring DHW temperature selector Illuminated indicator ring as status display Display Explanation 7 8 9 5 4 3 2 Fault DHW temperature selector For oil fired condensing boilers in combination with a cylinder the setting range 1 - 9 corresponds to a cylinder temperature of 15 to 65 °C. Combined with a control thermostat, the adjustment at the DHW temperature selector is disabled; instead the temperature is selected at the boiler control thermostat. 6 1 Burner ON, flame steady Flashing red 3 Emissions...

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Oil fired condensing boilers COB / COB-CS-5

Control accessories Standard control unit; part of the standard delivery of the oil fired condensing boiler BM programming module (incl. outside temperature sensor) as weather-compensated control thermostat BM programming module with wall mounting base (accessory) as remote control Two-wire eBUS cable • Time programs for DHW and central heating • LCD with background illumination • Easy plain prompts guide through the menus • Control by rotary selector with key function • Four function keys for frequently used functions (heating, DHW, setback, help) • Installation either inside the boiler control...

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Oil fired condensing boilers COB / COB-CS-6

Control accessories Cascade module KM • Extension module for control of systems with low loss header or cascade configuration • Applicable to control units of oil fired condensing boilers (4 appliances) • Easy configuration of the controller through selection of pre-defined system options • Suitable for regulating one mixer circuit • Programming module BM may either be plugged in or used as remote control with wall mounting base • 0-10V input for building control network systems; fault signal output 230V • eBus interface with automatic energy management • Rast-5 connection technology Two-wire...

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Oil fired condensing boilers COB / COB-CS-7

Installation accessories We recommend making the connection to the heating system with the following parts from the Wolf accessories range. COB connection set, adjacent to the wall comprising: 2 cross pieces, each with one connection 2 brackets 1 corrugated stainless steel pipe 1”, length 1300 mm 1 corrugated stainless steel pipe 1”, length 800 mm 1 silicon grease tube COB connection set with CS, adjacent to the wall comprising: 2 cross pieces, each with two connections 4 brackets 3 corrugated stainless steel pipes 1”, length 1300 mm 1 corrugated stainless steel pipe 1”, length 800 mm 2 corrugated...

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Oil fired condensing boilers COB / COB-CS-8

Balanced flue routing B23 B33 IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIII IIIII IIII IIII IIII II C33x C33x C53x IIII II IIIIIIII IIIIIIIII C93x C53 C83x C43x B33 C33x C93x C83x Types of connection Boiler Type 1), 2) Type COB15/20/ B23, B33, C33x, C43x, C53, C53x, C63x, C83x, C93x Operating mode Open flue Balanced flue yes yes To be connected to MoistureBalanced flue Balanced flue Acc. to Build Moistureresistant chimney chimney Regs cert. LAF resistant flue B33, C53, C83x C43x C33x, C53x, C63x B23, C53x, C83x C93x 29/40...

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Oil fired condensing boilers COB / COB-CS-9

Central heating - DHW heating options COB-CS oil fired condensing boiler with stratification cylinder 1 Cylinder heating from above with deflector and divider 2 DHW outlet at the highest point 3 Cold water supply with control and distribution device 4 Cold water draw-off for cylinder heating 5 DHW circulation line 6 Protective magnesium anode 7 Stratification pump, controlled 8 Plate-type heat exchanger in the cylinder 9 Cylinder primary pump 10 Sensor well for cylinder temperature sensor 11 Boiler drain (standard delivery) 12 Automatic air vent valve (standard delivery) 13 Cylinder heating sensor...

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Oil fired condensing boilers COB / COB-CS-10

Central heating - DHW heating options Solar DHW heating and central heating backup with stratification cylinder BSP 1 Collector array 2 Air vent trap 3 Collector sensor 4 Solar module SM1 5 Pump/fitting assembly 5 6 Solar control unit cylinder sensor 7 Stratification cylinder BSP 8 Fresh water module for DHW heating 9 Heating circuit assembly, mixing valve circuit assembly 10 Mixer module MM (config. 4) 11 Condensing boiler COB with BM programming module 12 Collective sensor 13 Cylinder sensor 14 Mixer module MM Solar DHW heating and central heating backup with solar cylinder SEM-1 / SEM-2 and...

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Oil fired condensing boilers COB / COB-CS-11

Tender template Item Pce. Oil fired condensing boiler COB / COB-CS ComfortLine Price each Total price Tested according to DIN EN 303 / DIN EN 304 / DIN EN 15034 / DIN EN 15035, as well as EU Directive 92/42/EEC (Efficiency Directive), 73/23/EEC (Low Voltage Directive), and 2004/108/ EEC (EMC Directive), with electronic ignition and electronic flue gas monitoring, for low temperature heating and DHW production in low temperature heating systems up to 85 °C and 3 bar permissible operating pressure according to EN 12828. High quality heat exchanger made from robust aluminium:silicon alloy. Oil fired...

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Oil fired condensing boilers COB / COB-CS-12

The comprehensive equipment range from system supplier Wolf offers the ideal solution for commercial and industrial buildings, for new build and for modernisation projects alike. The range of Wolf control units fulfils every need where heating convenience is concerned. The products are easy to operate, energy-efficient and reliable. Photovoltaic and solar heating systems can be quickly integrated into existing systems. All Wolf products can be easily and rapidly commissioned and maintained. The competence brand for energy saving systems 12 Part no. 48 00 597 01/2012 GB Subject to technical modifications...

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.