Wolf COB Technical Manual And Installation Instructions
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Wolf COB Technical Manual And Installation Instructions

Oil condensing boiler for central heating
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Technical guide and installation instructions
COB / COB-TS oil condensing boiler
COB for central heating •
COB-TS for central heating with stratification cylinder
WOLF GMBH / PO BOX 1380 / D-84048 MAINBURG / PHONE +49.0.87 51 74- 0 / FAX +49.0.87 51 74- 16 00 / www.WOLF.eu
GB
Doc. no.: 3062547_201802
Subject to technical modifications.

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Summary of Contents for Wolf COB

  • Page 1 COB for central heating • COB-TS for central heating with stratification cylinder WOLF GMBH / PO BOX 1380 / D-84048 MAINBURG / PHONE +49.0.87 51 74- 0 / FAX +49.0.87 51 74- 16 00 / www.WOLF.eu Doc. no.: 3062547_201802 Subject to technical modifications.

  • Page 2: Table Of Contents

    28 Cascade operation - Flue gas damper installation / wiring diagram ....46 29 Cascade operation - Flue gas damper tightness test ........47 Commissioning 30 Commissioning with Wolf control accessories (BM) ........48 31 CO check/adjustment by matching the pipe lengths ........49 32 Commissioning without Wolf control accessories (BM) .........51...

  • Page 3: Information Regarding The Manual

    Authorised personnel should read these instructions before any installation, commissioning or service work. Comply with the specifications in this document. Failure to observe these installation instructions voids any warranty claim against WOLF. Applicability of these instructions These installation instructions apply to the COB/TS oil condensing boiler Other applicable documents COB/TS user operating instructions COB/TS service instructions System and operator's log The instructions for all accessory modules and other accessories also apply where relevant.

  • Page 4: Safety Instructions / Recycling And Disposal

    (e.g. control unit) may only be carried out by qualified electricians. VDE/ÖVE regulations [Germany/Austria] and those of your local power supply utility company are applicable to electrical installation work. Only operate the boiler within its output range, which is stated in the technical documentation supplied by WOLF. Appropriate use of the boiler refers to the exclusive use for hot water heating systems in accordance with EN 12828. Never remove, bypass or otherwise disable any safety or monitoring equipment. The boiler must only be operated if it is in perfect working order. Any faults or damage which impact...
  • Page 5 2 Safety instructions / Recycling and disposal Instructing the system user - Instruct the system user to take out an inspection and maintenance contract with an approved contractor. - Inform the system user that the annual inspection and maintenance may only be performed by an approved contractor. - Inform the system user that repair work may only be performed by an approved contractor.

  • Page 6: Regulations

    3 Regulations Intended use COB/COB-TS oil condensing boiler Two-stage oil condensing boiler with electronic ignition and electronic flue gas monitoring, for low temperature heating and DHW heating in heating systems with flow temperatures of up to 90 °C and a permissible operating pressure of 3 bar.
  • Page 7 3 Regulations WOLF oil condensing boilers must only be installed by a qualified heating Note contractor. This heating contractor will also be responsible for the proper installation and 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.

  • Page 8: Installation/Standard Delivery

    4 Installation/standard delivery Oil condensing boiler COB-15/20/29/40 Oil condensing boiler COB-15/20/29 for heating with connection option for DHW cylinder e.g. SE-2, with TS stratification cylinder, SEM series, BSP right, floorstanding Oil condensing boiler COB-15/20/29 Oil condensing boiler COB-15/20/29 with TS stratification cylinder,...

  • Page 9: Dimensions/Opening The Casing

    5 Dimensions/Opening the casing Ventilation/ flue gas K n o c k - o u t s f o r connection individual pipework for heating connections Flow Entries for oil hoses (optional) Return Optional fixing point for oil filter Drain level Condensate Opening the casing Closing the casing Type plate...

  • Page 10: Specification

    6 Specification Oil condensing boilers COB-15 COB-15/TS COB-20 COB-20/TS 9,0 / 14,4 9,0 / 14,4 13,1 / 19,0 13,1 / 19,0 Rated heating output at 80/60 °C, stage 1/2 Rated heating output at 50/30 °C, stage 1/2 9,5 / 15,1 9,5 / 15,1...
  • Page 11 6 Specification Oil condensing boilers COB-29 COB-29/TS COB-40 18,5 / 28,2 18,5 / 28,2 25,3 / 38,0 Rated heating output at 80/60 °C, stage 1/2 Rated heating output at 50/30 °C, stage 1/2 19,6 / 29,6 19,6 / 29,6 26,8 / 40,0...

  • Page 12: Layout

    7 Layout COB-TS oil condensing boiler with stratification cylinder 1 Cylinder heating from above with deflector and divider 2 DHW draw-off at the highest point 3 Cold water supply with control and distribution appliance 4 Cold water draw-off for cylinder heating 5 DHW circulation line 6 Protective magnesium anode...

  • Page 13: Component Description

    8 Component description COB component description Automatic air vent Ignition transformer High limit safety cut-out (HLSC) Flame monitors Blast tube Oil pump motor Two-stage oil pump Flue gas temperature limiter Boiler sensor Water pressure switch Drain valve Component description TS Heating flow 1"...

  • Page 14: Siting Instructions

    Recommended minimum The COB and TS are installed adjacent to the wall, which means that a clearance of 70 cm only needs to be observed at the front. When installing the boiler, you should...

  • Page 15: Installation - General

    Provide a drain & fill valve at the lowest point in the system. The COB has not been fitted with an expansion vessel at the factory. This must be fitted externally (available from the Wolf accessories range). The expansion vessel must be sized sufficiently, in accordance with DIN 4807.

  • Page 16: Information On Water Treatment

    11 Information on water treatment Treatment of heating water in accordance with VDI 2035: Filling Potable water may be used as filling and top-up water if the limits in table 1 are not exceeded. Otherwise, the water must be treated using a desalinisation process. If the water quality does not meet the required values, the warranty for components on the water side becomes void.
  • Page 17 High salinity < 800 µS/cm Low salinity < 100 µS/cm < 0.11°dH recommended standard; permissible up to limit of < 1°dH System with a COB-20 system volume = 800 l Total hardness of untreated potable water = 18°dH = 800 l / 20 kW = 40 l / kW...

  • Page 18: Installation - Accessories

    12 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 Clips 1 Corrugated stainless steel pipes 1", length 1300 mm 1 corrugated stainless steel pipe 1", length 800 mm...

  • Page 19: Installation - Boiler/Cylinder

    13 Installation - boiler/cylinder Example: COB-15/20/29 oil condensing boiler with TS stratification cylinder on the right, floorstanding (when looking at front of boiler). The pipework for the heating flow and heating return, as well as the heating water flow and heating water return, are connected to the stratification cylinder with corrugated stainless steel pipes (accessories).(see Chapter “Installation - accessories”)

  • Page 20: Cylinder Connection

    14 Cylinder connection Venting the heating circuit of the TS stratification cylinder 1) Open the cover of the air vent valve and fill the heating system. 2) Activate the DHW demand once the installation has been filled. 3) Set the ON/OFF switch of the cylinder charging pump to “Vent”. Air vent valve ON/OFF switch 4) Set the cylinder charging pump to constant pressure again and start the cylinder.

  • Page 21: Installation Examples

    15 Installation examples Pipe assembly for three heating circuits with manifold for safety assembly installation Pipe assembly for two heating circuits with manifold for safety assembly installation Pipe assembly for one heating circuit for safety assembly installation Safety assembly for fixing to the corrugated stainless steel pipes of heating flow and return The safety assembly and the required pipe assembly can be installed on the left, on the right or at the back of the boiler on a wall or attached to the side of the boiler casing.

  • Page 22: Oil Connection In The Single Line System

    Only use filter inserts made of sintered plastic with 25-40 μm to Note prevent contamination of the oil nozzle within the service interval. Contaminated oil nozzles lead to the boiler failing. The system must be connected as a single line system. A filter/air vent valve combination with an integrated shut-off valve from the Wolf product range must be installed. Older two-line systems must be converted to single line systems. Two- Note line systems lead to accelerated oil ageing and the penetration of air into the oil. They are no longer in line with the latest technology. Only materials that are suitable for oil lines should be used. In the case of copper pipes, only metallic compression fitting olives with support sleeves are permissible. They are a reliable means of preventing air intake.
  • Page 23 Information on the use of 1. Permitted bio-oil constituents bio-oil blends: The COB (from date of manufacture May 2010) can be operated with fuel oil with up to 10% alternative constituents –B10- to DIN V 51603-6. 2. Bio-oil quality The bio-oil must comply with EN 14213 when the customer tank is filled.

  • Page 24: Siphon/Neutralisation/Condensate Pump

    17 Siphon/neutralisation/condensate pump If low sulphur fuel oil EL (sulphur content < 50 mg/kg) is used, it may be possible to forego neutralisation of the condensate after consultation with the lower water authority. The condensate may only be drained in drain lines in accordance with Code of Practice DWA-A251.

  • Page 25: Installation Of The Air/Flue Gas Routing

    As regulations in the individual Federal States [Germany] differ, we recommend consulting the relevant authorities and local flue gas inspector prior to installation. For COB-15/-20/-29, the supplied flue gas test Note nipples must be fitted to the air/flue outlets. Alternatively, the flue gas test nipples may also be directly fitted horizontally after the C93x 87° bend fitted to the boiler. When doing...

  • Page 26: Filling/Draining The Heating System

    - Vent the heating circuit completely, switching the boiler ON for 5 sec. and OFF for 5 seconds at the ON/OFF switch, five times in succession. - When the system pressure drops below 1.5 bar, top up the water. Fig.: Venting the COB Draining the heating system Switch off installation (see operating instructions) and let cool to a max. of 40°C, there is a risk of scalding otherwise.

  • Page 27: Electrical Connection

    20 Electrical connection General information Electric The installation may be carried out only by an Junction boxes approved electrical contractor. Observe VDE regulations as well as all local regulations of your power supply utility. The device power supply terminals are 'live' even when the ON/OFF switch has been switched OFF. Terminal box For installation in Austria: Observe the ÖVE In the delivered condition, the terminal box is fitted to the back regulations and requirements and those of your panel of the boiler.

  • Page 28: Control - Control System Description

    21 Control - control system description °C ON/OFF switch Reset button Thermometer Illuminated ring Heating water ON/OFF temperature temperature selector selector ON/OFF switch The condensing boiler is OFF in position 0. Reset A fault is reset by pressing the reset button which will also restart the system. If the boiler is in a cycle block, this is reset by pressing the button (2 seconds) Illuminated ring for status display Display...
  • Page 29 21 Control - control system description Setting Winter mode (settings 2 to 8) In winter mode, the boiler heats the flow temperature to the value set on the thermostat. According to the pump operating mode, the circulation pump operates constantly (factory setting) or only in parallel with the burner activation / run-on period. Summer mode The winter mode is deactivated by rotating the heating water temperature selector...

  • Page 30: Control - Displaying / Modifying Control Parameters

    22 Control - Displaying / modifying control parameters The control parameters can only be modified or displayed via Wolf control accessories with eBUS capability. For installation and procedures, check the operating instructions of the relevant accessories. BM programming unit Modifications must only be carried out by a Note recognised heating contractor or by the Wolf R.h. rotary selector L.h. rotary selector customer service. Incorrect settings may cause Temp. selection Prog. select. Display damage to and system faults at the boiler. To prevent damage to the heating system, cancel night setback when outside temperatures fall below -12 °C. If this requirement is not observed,...

  • Page 31: Contractor Level Parameters

    23 Contractor level parameters Contractor level Press r.h. rotary selector to, in the 2nd to change to the 2nd programming level. Turn the r.h. rotary selector clockwise to select the contractor level and confirm the selection Contractor by pressing the r.h. rotary selector again. The display shows the code scan.
  • Page 32 23 Contractor level parameters Maximum DHW temperature At the factory, the maximum DHW temperature is set to 65°C. This temperature can be enabled at 80 °C, if for commercial reasons a higher DHW temperature is required. Parameter A14 If pasteurisation has been activated (BM), the DHW cylinder will be heated to the selected maximum DHW temperature during the first cylinder heating of the day.
  • Page 33 23 Contractor level parameters Pump operating mode Pump operating mode 0: Heating circuit pump for heating systems without cascade control and without Parameters HG06 low loss header The heating circuit pump runs constantly when there is a heat demand. The heating circuit HG06 pump will be switched OFF during cylinder heating if DHW priority has been selected. Pumping operation type 1 (HG13 = 1; without header sensor at the E1 inlet): No direct heating circuit is connected to the oil condensing boiler All settings for the heating circuit are hidden. Heating circuits are controlled via a separate mixing module (accessories).
  • Page 34 23 Contractor level parameters Boiler circuit pump run-on time Subject to there being no heat demand from the heating circuit, the boiler circuit pump will run on in accordance with the set time, to prevent a boiler safety shutdown at high Parameters HG07 temperatures. HG07 Factory setting: 4 min Setting range: 0 to 30 min Maximum limit Boiler circuit This function sets an upper limit on the boiler water temperature in heating mode and...
  • Page 35 23 Contractor level parameters Programmable The functions of input E1 can only be scanned and adjusted with Wolf control accessories with eBUS capability. Input E1 Parameters HG13 The following functions can be allocated to input E1: HG13 Meaning Room thermostatClosed contact is a prerequisite for enabling the burner in...
  • Page 36 23 Contractor level parameters Programmable The functions of output A1 can only be scanned and adjusted with Wolf control accessories with eBUS capability. Output A1 Parameters HG14 The following functions can be allocated to output A1: HG14 Meaning DHW circulation pump 100%Output A1 is switched by control accessories (BM) if DHW circulation has been enabled.
  • Page 37 23 Contractor level parameters Cylinder hysteresis The cylinder hysteresis regulates the start point for cylinder heating. The higher the setting, the lower the start point for cylinder heating. Parameters HG15 HG15 Example: Set cylinder temperature 60 °C Cylinder hysteresis 5 K Cylinder heating commences at 55 °C and ends at 60 °C. Factory setting: 5 K Setting range: 1 to 30 K Run-on time, cylinder...
  • Page 38 23 Contractor level parameters Maximum boiler water temperature The control unit is equipped with an electronic boiler temperature controller which has an adjustable max. off temperature (max. boiler temperature). The burner is switched off if TK-max. this temperature is exceeded. The burner will restart when the boiler water temperature Parameters HG22 has fallen by as much as the burner switching differential.

  • Page 39: Cascade Operation - Technical Data / Control / Installation Information

    These oil condensing boilers have control PCBs with functions that are optimally matched to the digital controller type KM for cascade control. Up to four COB-29 or COB-40 oil condensing boilers (with the same output) with an output range of 18.5 kW to 112.8 kW (cascade COB-29) or 25.3 kW to 152.0 kW (cascade COB-40) can be...
  • Page 40 24 Cascade operation - technical data / control / installation information Directly heated DHW cylinder A DHW cylinder is generally connected downstream of the system separation or via a low loss header. Cylinder heating is controlled via the cascade controller type KM, to which a cylinder primary pump and the electronic cylinder sensor are connected. Heating circuit The following types of connections shall be selected to ensure the heating water flow rate through every condensing boiler is as even as possible:...

  • Page 41: Cascade Operation - Flue Gas System Design

    25 Cascade operation - Flue gas system design Air/flue gas routing Oil condensing boilers with a separate, concentric, balanced flue outlet (DN 80/125 or DN 110/160) above the roof, type C33 x, may only be installed in attics, or in rooms where the ceiling also forms the roof, or where only the roof construction is located above the ceiling.

  • Page 42: Cascade Operation - Flue Gas Header Design

    Where necessary, adapt the installation examples to the relevant building regulations and requirements in your country/region. Discuss any questions relating to the installation, particularly of inspection covers and ventilation apertures (ventilation generally required above 50 kW output) with your local heating engineer. 2 x 2 x 2 x Number COB-29 COB-29 COB-29 COB-29 COB-40 COB-40 COB-40 Installation...
  • Page 43 26 Cascade operation - Flue gas header design The maximum horizontal length of the flue gas header is 1.0 between the devices and 2.0 m behind the last device. In addition to the boiler connection bend, a maximum of two 87° diverters may be installed. Installation in an existing Minimum cross-section of the duct: With a round duct, the clear distance from the flue to the duct wall must be at least 3 cm and with an angular duct, at least 2 cm.
  • Page 44 Before commissioning the combustion system, have the safe usability of the flue system confirmed by the local flue gas inspector [in Germany; check local regulations]. 1 Oil condensing boiler 36 Trap 2 Connection adaptor with test nipple for air and flue 37 PP header gas (included in COB standard delivery) 38 End piece with inspection aperture and condensate 16 Pipe collar drain 23 support rail 24 87° support bend...

  • Page 45: Cascade Operation - Flue Gas Damper Installation

    - Connect the wires from the limit switch to input E1 (see the chapter "Wiring diagram cascade operation"). - Connect motor cable from the flue gas damper via an on- COB back view site junction box with programmable output A1 (see the chapter "Wiring diagram cascade operation") - Fit the cover.

  • Page 46: Cascade Operation - Flue Gas Damper Installation / Wiring Diagram

    28 Cascade operation - Flue gas damper installation / wiring diagram Flue gas damper wiring diagram COB terminal box Note The contractor parameter Netz eBUS HG13 (E1 input) must be set to 5 HG14 (A1 output) must be set to 7! Otherwise, the boilers do not change into heating mode. Flue gas damper with servomotor Note Power supply (230 VAC; 200 VA) Flue gas damper limit switch 230 V ~ must be potential-free. Otherwise, the COB control Limit switch unit is be destroyed. COB-15/20/29/40 Junction box...

  • Page 47: Cascade Operation - Flue Gas Damper Tightness Test

    - Set the program selector (l.h. rotary selector) to "Standby" on the BM programming unit. - Then turn the first COB to position 1 "Emissions test" by means of the heating water temperature selector è COB starts. - Operate the first COB for at least 5 minutes.

  • Page 48: Commissioning

    30 Commissioning with Wolf control accessories (BM) If no control accessory is installed, see chapter on "Commissioning without Wolf control accessories (BM)". Commissioning Only qualified personnel must carry out the commissioning and operation of the boiler and instruct the user! Test port Test port Check the boiler and system for water tightness. If water tightness Note "Inlet air" "Flue gas" cannot be ensured, there is a risk of leaking water causing water damage. Normal operating pressure when system is cold 1.5 - 2.0 bar. Check the fuel level in the oil tank. Commissioning without oil may Note damage the oil pump, due to dry running. Check the system for oil leaks. Prevent oil leaks. If oil tightness is not assured, there is a risk to health from drinking water which has been contaminated with oil Check the water level in the trap. Operating the appliance with an empty trap presents a risk of poisoning due to flue gases escaping.

  • Page 49: Co Check/Adjustment By Matching The Pipe Lengths

    3,8 ± 0,4% - If the value lies outside of the set value, the CO -value must be set via the pump pressure (see Commissioning without Wolf control accessories). - Reset HG28 burner operating mode from 1 to 2. 3062547_201802...
  • Page 50 - After completing the work, refit the casing cover and check the CO value with the boiler closed. - When correctly set, the boiler should not exceed the maximum CO values in accordance with the table below. Appliance closed COB-15 COB-20 COB-29 COB-40 Stage 2 13,5 % Stage 1...

  • Page 51: Commissioning Without Wolf Control Accessories (Bm)

    32 Commissioning without Wolf control accessories (BM) Commissioning Only qualified personnel must carry out the commissioning and operation of the boiler and instruct the user! Check the boiler and system for water tightness. If water tightness Test port Test port Note cannot be ensured, there is a risk of leaking water causing water "Inlet air" "Flue gas" damage. Normal operating pressure when system is cold 1.5 - 2.0 bar. Check the oil level in the tank. Commissioning without oil may damage Note the oil pump, due to dry running.

  • Page 52: Co Check/Adjustment Via Pump Pressure

    Take this measurement within 4 s. of the burner start. If necessary, repeat the start phase for setting procedures by turning back the heating water temperature selector and pressing the reset button. Turn clockwise - higher CO value Turn anti-clockwise - lower CO value Pressure Appliance open COB-15 COB-20 COB-29 COB-40 regulating screw Stage 2 12,7 ± 0,3% Danfoss oil pump...
  • Page 53 - After completing the work, refit the casing cover and check the CO value with the boiler closed. - When correctly set, the boiler should not exceed the maximum CO values in accordance with the table below. Appliance closed COB-15 COB-20 COB-29 COB-40 Stage 2 13,5 % Stage 1...

  • Page 54: Commissioning Report

    34 Commissioning report Commissioning steps Test values or confirmation 1.) Fuel oil Standard EL Low sulphur EL Bio-oil B10 2.) Oil leak test carried out? 3.) Air/flue system checked? 4.) Water connections checked for tightness? 5.) Trap filled? 6.) Boiler and system vented? 7.) System pressure 1.5 - 2.5 bar? 8.) Function test carried out? 9.) Flue gas test: Flue gas temperature gross...

  • Page 55: Maintenance And Design Data

    15515 3133 14750 3007 14027 2887 13344 2772 12697 2662 12086 2558 11508 2458 10961 2362 10442 2271 9952 2183 9487 2100 9046 2020 8629 1944 Pressure drop on the heating CGB-15 pressure drop COB-15 10K spread COB-15 20K spread 1000 1200 1400 1600 1800 2000 Water volume (l/h) 3062547_201802...
  • Page 56 35 Maintenance and design data Pressure drop on the heating COB-20 CGB-20 pressure drop 10K spread COB-20 20K spread 1000 1200 1400 1600 1800 2000 Water volume (l/h) Pressure drop on the heating Pressure drop COB-29 COB-29 10K spread COB-29 20K spread 800 1000 1200 1400 1600 1800 2000 2200 2400 2600 2800 3000 Water volume (l/h) Pressure drop on the heating Pressure drop COB-40 COB-40 10K spread COB-40 20K spread...

  • Page 57: Technical Information

    36 Technical information General information For reasons of operational safety, use only original Wolf A balanced flue without a duct must not be routed components for balanced flues and standard flues. through other installation rooms, as mechanical protection is not ensured. Otherwise, if there is Where necessary, adapt the installation examples to the relevant exposure to fire from outside, there is a risk that the building regulations and requirements in your country/region. fire and smoke are transmitted to other floors. This Discuss any questions relating to the installation of inspection again results in a risk of severe to life-threatening covers and vents with the local flue gas inspector.
  • Page 58 ● Flexible flue DN 110 ● Concentric balanced flue DN 110/160 ● DN 160 flue (for cascade operation) The necessary type plates and certificates are included with the relevant WOLF accessories. Please also observe the installation information supplied with the accessories. 3062547_201802...
  • Page 59 DN 110/160, vertical DN 110 DN 110 Available fan draught: COB-15: 32-65 Pa / COB-20: 45-65 Pa / COB-29: 55-105 Pa / COB-40: 70-150 Pa (The maximum length corresponds to the total length from the appliance to the flue terminal) T he calculation was made taking the pressure conditions into account (geodetic height: 325 m). The specified lengths refer...
  • Page 60 36 Technical information Minimum duct sizes for room sealed operation C93x Assuming: 1 x 87° bend + 1.5 m horizontal with 87° support bend Flue DN60 (COB-15) Flue DN60 (COB-15) Rigid flue DN60 Rigid flue DN60 Flexible flue DN60 Flexible flue DN60 Square duct a x a (mm) Round duct Ø (mm)
  • Page 61 36 Technical information Concentric room sealed C33x, C93x, and flue on an external wall C53x (examples) DN 60/100, DN 80/125 and DN 110/160 1 Oil condensing boiler 2 Connection adaptor with test nipple for air and flue gas (included in COB standard delivery) 4 Balanced flue 500 mm 1000 mm 2000 mm 5 Spacer clip 7 Balanced flue routing vertical Roof outlet for flat or pitched roof...
  • Page 62 36 Technical information Vertical, concentric, balanced flue C33x for room sealed operation (Examples) DN 60/100, DN 80/125 and DN 110/160 1 Oil condensing boiler 2 Connection adaptor with test nipple for air and flue gas (included in COB standard delivery) 3 Balanced flue with inspection port (250 mm long) 4 Balanced flue 500 mm 1000 mm 2000 mm 5 Spacer clip 6 Mounting bracket for roof outlet 7 Balanced flue routing vertical...
  • Page 63 Secondary ventilation B23 open flue system and B33 (example) DN 60/100, DN 80/125 and DN 110/160 1 Oil condensing boiler 2 Connection adaptor with test nipple for air and flue gas (included in COB standard delivery) 4 Balanced flue 500 mm 1000 mm approx. 1500 mm (COB-15/20/29) 2000 mm approx. 1700 mm (COB-40) 5 Spacer clip (only if required) 10 87° inspection piece...
  • Page 64 36 Technical information Supplementary installation instructions for balanced flue DN 80/125 Flat roof: Affix the ceiling outlet approx. Ø 130 mm (14) deep into the roof cover. Pitched roof: For (12), observe the installation instructions on the cowl regarding roof pitch. Insert roof outlet (7) into the roof from above and secure vertically with (6) to a rafter or brickwork.

  • Page 65: Fault

    Original Wolf components are designed for long-term use and when connecting the system to a flue gas chimney. are matched for use with Wolf oil condensing boilers. When The flue gas chimney must be CE-designated. using CE-designated third party equipment, the installer is...

  • Page 66: Wiring Diagram

    37 Wiring diagram 3062547_201802...

  • Page 67: Reset

    38 Reset Reset Observe the following steps to implement a reset: - The ON/OFF switch must be set to O (OFF). - Press and hold down the reset button on the standard control unit whilst setting the °C ON/OFF switch to I (ON). - Hold down the reset button again for at least 2 seconds after switching on the system.

  • Page 68: Troubleshooting

    39 Troubleshooting Any faults will be displayed as fault codes by Wolf controllers with eBUS capability. Cause and remedy may be allocated to these faults using the following table . This table is designed to allow your local heating contractor to trace the fault more easily.
  • Page 69 39 Troubleshooting Fault Fault Cause Remedy code Insufficient water The pressure switch does not switch on, Check system pressure >1.5 bar pressure water pressure is too low (< 0.8 bar) Check water pressure switch, check lead, press reset Condensate pump not Condensate pump is defective Check pump, pumping...

  • Page 70: Product Datasheet To Eu Regulation No. 811/2013

    Any specific precautions that shall be taken See installation See installation See installation See installation when the space heater is assembled, installed instruction instruction instruction instruction or maintained Wolf GmbH, Postfach 1380, D-84048 Mainburg, Tel. +49-8751/74-0, Fax +49-8751/741600, Internet: www.wolf-heiztechnik.de Material number: 3020224 01/2018 3062547_201802...
  • Page 71 Any specific precautions that shall be taken See installation See installation See installation See installation when the space heater is assembled, installed instruction instruction instruction instruction or maintained Wolf GmbH, Postfach 1380, D-84048 Mainburg, Tel. +49-8751/74-0, Fax +49-8751/741600, Internet: www.wolf-heiztechnik.de Material number: 3020524 01/2018 3062547_201802...
  • Page 72 Sound power level, indoors Any specific precautions that shall be taken See installation See installation when the space heater is assembled, installed instruction instruction or maintained Wolf GmbH, Postfach 1380, D-84048 Mainburg, Tel. +49-8751/74-0, Fax +49-8751/741600, Internet: www.wolf-heiztechnik.de Material number: 3020547 01/2018 3062547_201802...
  • Page 73 Sound power level, indoors Any specific precautions that shall be taken See installation See installation when the space heater is assembled, installed instruction instruction or maintained Wolf GmbH, Postfach 1380, D-84048 Mainburg, Tel. +49-8751/74-0, Fax +49-8751/741600, Internet: www.wolf-heiztechnik.de Material number: 3020570 01/2018 3062547_201802...
  • Page 74 Sound power level, indoors Any specific precautions that shall be taken See installation when the space heater is assembled, installed instruction or maintained Wolf GmbH, Postfach 1380, D-84048 Mainburg, Tel. +49-8751/74-0, Fax +49-8751/741600, Internet: www.wolf-heiztechnik.de Material number: 3021496 01/2018 3062547_201802...

  • Page 75: Technical Parameters To Eu Regulation No. 813/2013

    23,775 Contact WOLF GmbH, Industriestrasse 1, 84048 Mainburg, Germany (*) High temperature operation means a return temperature of 60°C at the boiler inlet and a flow temperature of 80°C at the boiler outlet. (**) Low temperature operation means a return temperature (at the boiler inlet) of 30°C for condensing boilers, 37°C for low temperature boilers and 50°C for other heating appliances.

  • Page 76: Declaration Of Conformity

    42 Declaration of Conformity DECLARATION OF CONFORMITY (to EN ISO/IEC 17050-1) Number: 3062547 Issued by: WOLF GmbH Address: Industriestrasse 1, D-84048 Mainburg Product: Oil condensing boiler COB/COB-TS The product described above conforms to the requirements specified in the following documents: §6, 1. BImSchV, 26.01.2010 DIN EN 267, 11/1999 DIN EN 303, 12/2003 DIN EN 304, 01/2004...
  • Page 77 42 Declaration of Conformity DECLARATION OF CONFORMITY (to ISO/IEC 17050-1) Number: 3062547 Issued by: WOLF GmbH Address: Industriestrasse 1, D-84048 Mainburg Product: TS cylinder The product described above conforms to the requirements specified in the following documents: DIN EN 12897:2006-09 In accordance with the following Directives: 2009/125/EC (ErP Directive) this product is identified as follows: Mainburg, 20/07/2017 Gerdewan Jacobs Jörn Friedrichs Technical Director Head of Development...

  • Page 78: Notes

    43 Notes 3062547_201802...
  • Page 79 43 Notes 3062547_201802...
  • Page 80 WOLF GMBH POSTFACH 1380 / D-84048 MAINBURG / TEL. +49.0.87 51 74- 0 / FAX +49.0.87 51 74- 16 00 www.WOLF.eu Doc. no.: 3062547_201802 Subject to technical modifications.

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