EHOBG12ABV1 - Air-conditioner DAIKIN - Free user manual and instructions

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USER MANUAL EHOBG12ABV1 DAIKIN

These installation instructions With these installation instructions, you can safely assemble, install and maintain the unit. Carefully follow the instructions. In case of any doubt, please contact the manufacturer. Keep the installation instructions near the unit. Abbreviations and terms used Description To be referred to as Daikin EHOBG12ABV1, EHOBG18ABV1 Unit Unit with piping for central heating CH installation System with pipes for domestic hot water DHW installation Symbols The following symbols are used in this manual:

CAUTION Procedures which - if they are not carried out with the necessary care - may cause damage to the product, the surroundings, the environment or injury.

IMPORTANT Procedures and/or instructions which, if they are not followed, will have a negative effect on the functioning of the unit.Daikin Europe NV

Service and technical support for the installer For information about specific settings, installation, maintenance and repair work, as an installer, please contact your local Daikin dealer. Identification of the product You will find the unit details on the type plate on the bottom of the unit. The data plate contains, beside the supplier information and the boiler specification (boiler type and model name) the following information: ******-yymm****** Product code-Serial No. YY= year of production, mm = month of production PIN Product Identification Number

Data related to Central Heating

Information regarding electrical power supply Voltage, mains frequency, elmax, IP-class) PMS Permissible overpressure in CH circuit in bar Qn HS Input related to gross caloric value in kilowatts Qn Hi Input related to net caloric value in kilowatts Pn Output in kilowatts BE, DE, FR, IT, PL Countries of Destination (EN 437) I2E(s), I2H, IIELL3P, II2H3P, II2Esi3P Approved unit categories (EN 437) G20-20 mbar G25-25 mbar Gas group and gas connection pressure as set at the factory (EN 437) B23, …. C93(x) Approved flue gas category (EN 15502) Tmax Max. flow temperature in °C IPX4D Electrical protection class

IMPORTANT This product is intended for domestic use only. The manufacturer Daikin Europe NV accepts no liability for damage or injury caused by the failure to (strictly) observe the safety instructions, or negligence during the installation of the Daikin EHOBG*ABV1 wall-mounted gas boiler and any associated accessories. This device is not intended for use by people (including children) with reduced physical, sensory or mental abilities, or lack of experience and knowledge, unless they are given supervision or instructions on the use of the device by a person who is responsible for their safety. The entire installation must meet the applicable local technical and (safety) instructions, for the gas installation, the electrical installation, smoke extraction installation, drinking water installation, and central heating installation.Daikin Europe NV

The Daikin EHOBG*ABV1 wall-mounted gas boiler is a closed unit. The unit is intended to provide heat to the water of a CH-installation and the domestic hot water installation. The air supply and combustible gas outlet can be connected to the unit by means of two separate pipes. A concentric connection can be supplied upon demand. The unit was tested in combination with the combi feedthrough, but the unit may also be connected to combi feedthroughs which meet the universal test standards for combi feedthroughs. The unit can be connected to an assembly bracket if required, a frame with top connection, and various installation sets. These are provided separately. The Daikin EHOBG*ABV1 wall-mounted gas boilers have the CE marking and electrical protection class IP44. The unit is delivered for natural gas (G20) as a standard. On request, the unit can also be provided for propane (G31).

The Daikin EHOBG*ABV1 wall-mounted gas boiler is a modulating high-efficiency boiler. This means that the power is modulated to suit the required heat demand. A copper CH circuit is integrated in the aluminum heat exchanger. The water of the DHW installation can be heated by connecting the unit to an indirectly heated tank using a three-way valve and tank sensor (see par.5.1 and 5.2). The built in tank regulation of the unit ensures the domestic hot water provision takes precedence over the heating. Both cannot work at the same time. The unit is fitted with an electronic boiler controller, which operates the fan at every heat requirement of the heating or the warm water supply, opens the gas valve, ignites the boiler controller, and continuously monitors and regulates the flame, depending on the requested power.

The operating mode of the unit is indicated by means of a code on the service display of the operating panel. - Off The unit is not in operation, but is connected to the electricity supply. No response is given to requests for domestic hot water or CH water. The unit frost protection is active. This means that the pump will start running and the exchanger will be heated up if the temperature of the water in the system drops too far. If the frost protection intervenes, the code 7 will be displayed (heating up exchanger). The pressure in the CH installation can also be read from the temperature display in this operating mode (in bar). Standby The LED at the key is lit and possibly one of the LEDs of the tap comfort function. The unit is ready to respond to a request for CH or tap water. 0 Post-running CH After the end of the CH-operation, the pump will run for a specified time. The post- pumping time is set to the value in par. 7.2 in its factory settings. This setting can be changed. In addition to this, the pump will run automatically 1 time per 24 hours, for 10 seconds, in order to prevent it from getting stuck. This automatic switching on of the pump takes place at the time of the last heating request. In order to change this, the room thermostat needs to be set higher for a moment, at the required time of day. 1 Requested temperature reached The boiler controller may temporarily block the heat request. The boiler controller will then be stopped. The block occurs because the required temperature has been reached. When the temperature has sufficiently decreased, the block will be lifted. 2 Selftest Once every 24 hours, the boiler controller tests the connected sensors. During the test, the relay will not carry out any other tasks. 3 Ventilating When the unit is started, the fan is first brought up to its correct start rpm. When the start rpm is reached, the boiler controller will be ignited. Code 3 is also visible when there is post-fanning after the boiler controller is stopped.Daikin Europe NV

4 Igniting When the fan has reached the start rpm, the burner relay will be ignited by means of electrical sparks. During the ignition, code 4 is displayed. If the boiler controller does not ignite, a new attempt will be made after approximately 15 seconds. If after 4 ignition attempts, the boiler controller has still not been ignited, the controller will go into down- time. 5 CH operation An on/off thermostat, an OpenTherm thermostat, an outdoor sensor or a combination thereof can be connected to the controller (see par. 10.3) When there is a heat request from a thermostat, after the fan has started running (code 3 ), the ignition will take place (code 4 ) followed by the CH operating mode (code 5 ). During CH operation, the rpm of the fan and therefore the power of the unit can be adjusted so the temperature of the CH water to the required CH supply temperature can be controlled. If an on/off thermostat has been connected, this will be the CH supply temperature set on the display. In case of an OpenTherm thermostat, the required CH supply temperature is determined by the thermostat. In case of an outdoor sensor, the required CH supply temperature is determined by the fuel line programmed in the boiler controller. For the last two situations, the temperature set on the display is the maximum. During CH operation, the requested CH supply temperature will be displayed on the operating panel. The CH supply temperature can be set between 30 and 90°C (see par. 7.1). Caution: for a low temperature system, a lower maximum setting may be required than the standard setting of 80°C. You can press the service button during CH operation to read the actual CH supply temperature. If the tap comfort function is switched on (see code 7 ), an OpenTherm heatingrequest of less than 40 degrees will be generated.Daikin Europe NV

6 Domestic hot water operation EHOBG*ABV1 in combination with indirectly fired tank The hot water supply takes precedence over the heating. When a tank sensor is used, any CH request will be interrupted when the tank sensor detects a temperature of 5 degrees lower than the set value. After the fan has switched on (code 3 ) and there has been an ignition (code 4 ), the boiler controller will switch to domestic water operation (code 6 ). When a tank thermostat is used, the heat request will start when the thermostat is opened, and it will end when the thermostat closes again. The fan speed , and therefore the power of the unit, is in that case controlled by the boiler controller on the basis of a fixed leaving water temperature. The domestic hot water temperature can be set between 40°C and 65°C. The set tank temperature is displayed on the operating panel during domestic hot water operation. You can press the service button during tap water operation to read the actual tank temperature.

The boiler controller is provided with an interface for a PC. A PC can be connected by means of a dongle, and the associated software. This facility enables you to follow the behavior of the boiler controller, the unit and the heat installation over a long period.

There is an option in the burner relay, to bring the unit into a test status. Activating a test program, will switch on the unit with a set fan rotations per minute, without the control functions intervening. The safety functions do remain active. The test program is ended by pressing and simultaneously. Test programs Description of program Button combination Display reading Burner on with minimum DHW capacity (see parameter d par. 7.2) and “L” Burner on with set maximum CH power (see parameter 3 par. 7.2) and (1x) “h” Burner on with maximum DHW power (see parameter 3 par. 7.2) and (2x) “H” Switching off test program and Current operation situation

During test mode the following data can be read :

• By pressing the button continuously in the display the CH water pressure is shown.

• By pressing the button continuously in the display the ionisation current is shown.

The unit is fitted with frost protection in order to prevent it from freezing. If the temperature of the heat exchanger drops too low, the pump will start running until the temperature of the heat exchanger is sufficiently high. If the frost protection intervenes, the code 7 will be displayed (heating up exchanger).

• If the installation (or a part thereof) can freeze, the coldest place should be fitted with an (external) frost thermostat on the return pipe. This must be connected in accordance with the electrical diagram (see par. 10.3). Note When the unit is switched off ( - on the service display), the unit frost protection will remain active, however a heating request from an (external) frost thermostat will be ignored.Daikin Europe NV

A. Modulating CH pump K. Flue gas/air inlet concentric adapter B. Gas valve L. Air supply (only when using twin pipe flue system) C. Burner controller (incl. operating panel) M. Connection block / terminal strip X4 D. Sensor S1 (flow) N. Condensate collector E. Sensor S2 (return) O. Siphon F. Fan P. Heat exchanger G. Pressure sensor central heating Q. Operating panel and display H. Connection wire 230 V ~ with earthed plug R. Ignition/ionization pin

Description Article numbers B-pack small EKFJS*AA B-pack middle EKFJM*AA B-pack large EKFJL*AA Valve kit EKVK4AA Cover plate EKCP1AA

Outdoor sensor EKOSK1AA 3-way valve set EK3WV1AA Flue gas adapter Concentric

Flue gas adapter Parallel 80 mm

4.1 Installation measurements

Boiler mounted directly to the wall:

Unit + mounting bracket A =

Unit connected to B-pack:

The unit must be installed against a wall with sufficient load bearing capacity. In case of light wall constructions, there is a risk of resonance noises. Within 1 meter of the unit, there must be an earthed wall plug. In order to prevent the condense outlet from freezing, the unit must be installed in a frost-free room. Preferably ensure there is a space of at least 2 cm next to the boiler. No free space is required due to danger of singeing.

4.2.1 Installing in kitchen cabinet

The unit can be placed between two kitchen cabinets, or inside a kitchen cabinet. Make sure there is sufficient ventilation at the bottom and the top. If the unit is installed inside a cabinet, ventilation openings of at least 50 cm

4.2.2 Removing cover plate and front panel

For various activities on the unit, the cover plate and front panel have to be removed from the unit, if they were installed. Do this as follows:

• If you are using the cover plate (A), remove it to the front.

• Unscrew both screws (1) behind the display window.

• Pull the bottom of the front panel (2) forwards.

Danger: risk of burning

In case of high leaving water set ponts for space heating (eighter a high fixed set point or a high weather-dependent set point at low ambient temperatures), the heat exchanger of the boiler can be very hot, for example 70°C. Beware that in case of a tapping demand, the water can initially have a higher water temperature than requested. In this case, it is recommended to install a thermostatic valve to prevent scalding. This can be done according to the schematics below.

a=boiler, b=DHW from boiler, c= cold water inlet, d=shower, e=thermostatic valve (field supply)Daikin Europe NV

The boiler can be hung to the wall using :

• the wall suspension strip and a the connection kit EKVK4AA

• a B-pack including an expension vessel and a connection kit.

4.3.1 Assembling suspension strip and assembly bracket

• Make sure the construction of the wall is suitable for hanging the boiler.

• Drill the holes for the suspension strip and the connection kit in the wall using the template delivered with the boiler.

• Mount the suspension strip and the assembly bracket horizontally on the wall, using the associated attachment materials.

• The boiler can now be placed on the suspension strip simultaniously sliding the pipes of the boiler into the valves in the assembly bracket.

• Make sure the construction of the wall is suitable for hanging the boiler and B-pack.

• Drill the holes for the B-pack kit in the wall using the template delivered with the boiler.

• Mount the B-pack on the wall using the associated attachment materials.

• Place the assembly bracket in the frame as described in the manual inclued in the B-pack.

• Connect the flexible hose on the expension vessel and the conenction on the return valve. Make sure the seal rings are placed !

• The boiler can now be placed on B-pack simultaniously sliding the pipes of the boiler into the valves in the assembly bracket.

2. Check the content of the packaging, which consists of:

• Operating instructions

3. Check the unit for any damage: immediately report damages to the supplier.

4. Install the suspension strip.

5. Check whether the compression rings are positioned straight in the couplings of

the assembly bracket.

6. Position the unit: slide it from top to bottom over the suspension strip (B).

Make sure the pipes slide into the compression fittings simultaneously.

7. Tighten the compression fittings onto the assembly bracket.

The nipples and pipes must not rotate with it!

8. Open the display valve and loosen the two screws on the left and right of the

display, and remove the front panel.

9. Assemble the flexible tube (D) onto the outlet of the siphon.

Fill the siphon with water, and slide it as far as possible on top of the condense output connector (E) under the unit.

10. Seal flexible tube (D) of the siphon, if possible together with the overflow pipe of

the inlet combination and the overflow valve, to the sewage via open connection (F).

11. Assemble the air supply and the burning gas outlet (see par.5.5).

12. Assemble the cover and tighten the two screws to the left and the right of the

4.3.4 Apply cover plate (optional)

Suspend the converted top edge of the cover plate from the washers underneath the bottom of the unit, and slide the cover plate as far back as possible. Please note: When installing the boiler in combination with a cover plate, the siphon will extend underneath the cover plate.Daikin Europe NV

5.1 Connecting CH installation

1. Rinse the CH installation carefully. 2. Fit the supply pipe (A) and return pipe (B) to the connection set. 3. All pipes must be assembled with no electrical current, in order to prevent shocks from the pipes. 4. Existing connections may not be rotated, in order to prevent leakages.

The CH installation must be fitted with:

• A filling/draining tap (A) in the return pipe, immediately underneath the unit.
• A draining tap at the lowest point of the installation.
• An overflow valve (B) of 3 bar in the input pipe at a distance of no more than 500 mm from the unit. Between the unit and the overflow valve there may be no valve or constriction.
• An expansion vessel in the return pipe (in the B-pack or in the installation).

• A check valve, if there are pipes running up, within close distance of the unit. This prevents a thermosiphon effect from occurring during tap water operation (a non spring-operated return valve, must be assembled vertically).

5.1.1 Thermostatic radiator taps

If all radiators are fitted with thermostatic or cable radiator taps, a minimum water circulation must be safeguarded. See par. 7.4.

5.1.2 Dividing CH installation in groups in case of additional heat

sources Operating principle If the room thermostat switches off the boiler because another heat source (wood heater, open fire etc.) heats the room, the other rooms may cool down. This can be resolved by splitting the CH installation into two zones. The zone with the external heat source (Z2) can be shut off from the main circuit by means of an electrical shut-off valve. Both zones are fitted with their own room thermostat. Please note: This “external heat source” regulation may only be applied if no extra external tank has to be heated up (installation type 1). Installation instructions

1. Install the valve in accordance with the connection diagram.

2. Connect the room thermostat of zone 1 to X4 – 6/7.

3. Connect the room thermostat of zone 2 to X4 – 11/12.

4. Change parameter A (see Parameter settings via the service code par. 7.2).

Please note: The room thermostat in zone 1 MUST be an on/off thermostat. The room thermostat in zone 2 may be an OpenTherm thermostat or an on/off thermostat. Connection diagram “external heat source” regulation A. Boiler B. Electrical shut-off valve 230 V ~ C. Radiators T1. Room thermostat zone 1 T2. Room thermostat zone 2 Z1. Zone 1 Z2. Zone 2 Connecting external tank For the connection of the EHOBG*ABV1 to an indirectly fired tank, a set is available. This set, EK3WV1AA contains the folowing parst and is delivered upon order:

• Locking clip for tank sensor

• Three-way valve set 230V Connect the tank and three-way valve to the boiler in accordance with the diagram. Remove the through connection between 9 and 10 to connector X4. Connect the three- way valve to connector X2 and connect the tank sensor or thermostat to connector X4 in accordance with the wiring diagram (see par. 10.2). Connection diagram indirectly fired tank C. Unit D. Tanks E. CH installation F. Expansion vessel G. Safety valve 3 Bar H. Three-way valve

I. Tank sensor or thermostat

Note When an on/off tank thermostat is used, the heat request will start when the thermostat is opened, and it will end when the thermostat closes again. In case of old installations or domestic hot water circuits which can contain small particles, install a filter in the domestic hot water circuit. This pollution could cause a fault during domestic hot water operation.Daikin Europe NV

5.2 Connecting electronically

CAUTION A socket with safety ground must be no further than 1 meter from the unit. The socket must be easily accessible. When installing the unit in a damp space, a fixed connection is obligatory, by means of an all-pole main switch with a minimum contact gap of 3 mm. If the mains cable is damaged or requires replacement for any other reason, the replacement mains cable must be ordered from the manufacturer or its representative. In case of any doubt, contact the manufacturer or its representative.

1. Remove the plug from the socket, when working on the electrical circuit.

2. If there is a cover plate (A), remove it to the front.

3. Unscrew both screws (1) behind the display window.

4. Slide the bottom of the front panel (2) forwards, and remove it.

5. Pull the boiler controller forward. The boiler controller will tip downwards in the

6. Consult par. 10.3 to make the connections.

7. After the required connections have been made, slide the boiler controller back into

the unit and return the cover plate, if you are using one.

8. After making the required connections, connect the unit to the socket with safety

5.2.1 Electrical connections

Temperature regulation Connector X4 Comments Room thermostat on/off 6 - 7 - Modulating thermostat with comfort function in use

Outdoor temperature sensor

Connect room thermostat

5.3.1 Room thermostat on/off

1. Connect the room thermostat (see par. 10.2).

2. If necessary, set the feedback resistance of the room thermostat to 0.1 A. If unsure,

measure the electrical current and set it accordingly. The maximum resistance of the thermostat pipe and the room thermostat amounts to a total of 15 Ohm.

5.3.2 Modulating thermostat, Open Therm

The unit is suitable for connecting a modulating room thermostat, in accordance with the OpenTherm communication protocol. The most important function of the modulating room thermostat is to calculate the input temperature at a required room temperature, in order to make optimal use of the modulating. At every heating request, the required input temperature is shown on the display of the unit. Connect the modulating thermostat (see par.10.2). If you want to use the tap water on/off switch function of the OpenTherm thermostat, the tap water comfort function must be set to eco or on. For more information, consult the manual of the room thermostat.

5.3.3 Modulating room thermostat, wireless

The EHOBG*ABV1 CH boiler is suitable to communicate wireless without sending/receiving module with the Honeywell room thermostats T87RF1003 Round RF, DTS92 and CMS927. The CH boiler and the room thermostat must be appointed to each other:

• Press the reset button of the unit for approximately 5 seconds in order to get to the RF- room thermostat menu.

• One of the following codes will be shown on the display of the unit:

: the display above the button shows an L alternated by a

red led : flashing The CH boiler has not been appointed. A unit in this operating status, can be linked by using the method of the appropriate room thermostat. The method of appointment depends on the type of room thermostat and is described in the installation and operating instructions of the wireless room thermostat.

2. rF and L / 1 : the display above button shows an L alternated by a 1

red led : off The CH boiler has already been appointed. There is already an existing link with an RF room thermostat. In order to allow a new link to be made, the existing link will have to be removed. See: Undo the appointment of an RF room thermostat to the CH boiler.

• Press the reset button to exit the RF room thermostat menu or wait for 1 minute. Testing the connection between the unit and the RF room thermostat

1. Press the reset button of the unit for approximately 5 seconds to access

the RF room thermostat menu of the boiler controller.

3. Set the room thermostat to the test mode (see the installation and operating

instructions of the room thermostat).

4. The red led above the reset button will flash if the appointment has

been carried out correctly.

5. Press the reset button of the unit to exit the RF room thermostat menu of

the boiler controller. You will automatically exit the test mode 1 minute after the last test message of the RF room thermostat has been received.Daikin Europe NV

Undo the appointment of an RF room thermostat to the CH boiler.

• Press the reset button of the unit for approximately 5 seconds to access the RF room thermostat menu of the CH boiler.

• Press the reset button of the unit again to remove the existing appointments. The display of the unit will show rF again, with a flashing L /

. If required, an RF room thermostat can be appointed to the unit again.

• Press the reset button of the unit to exit the RF room thermostat menu or wait for 1 minute.

5.3.4 Outdoor temperature sensor

The unit is provided with a connection for an outdoor temperature sensor. The outdoor temperature sensor should be used in combination with an on/off room thermostat. In principle, any on/off room thermostat can be combined with an outdoor sensor. Upon request of the room thermostat, the boiler will provide heat until the maximum set temperature in the boiler has been reached. This maximum set temperature is automatically regulated via the outdoor sensor, in accordance with the set fuel line in the boiler. Connect the room outdoor sensor (see par. 10.2). For the fuel line setting, see the weather dependent regulation (see par. 7.5).

1. Fit the gas valve directly on the 1/2" gas connection of the connection set using

2. .Place a gas sieve in the connection for the unit if the gas may be

3. Connect the gas pipe in the gas valve using appropriate seal.

4. Check the gas carrying parts for leakages at a pressure of up to 50 mbar.

5. The gas pipe should be fitted pressure free.

5.5 Flue and air supply duct

For the installation of the flue and air supply duct material, see the manual included with the materials. Contact the manufacturer of the relevant flue and air supply duct materials for extensive technical information and specific assembly instructions.

Make sure that the socket connections of the flue and air supply duct materials are correctly sealed. Improper fastening of the flue and the air supply duct can lead to hazardous situations or result in personal injury. Check all flue components for tightness. Don not use screws or parkers to mount the flue system as leakage can occur. Do not use any sort of grease when mounting the pipe system. Use water instead. The sealing rubbers can be negatively affected when grease is applied. Do not mix any components, materials or ways of coupling from different manufacturers.

5.5.1 Concentric connection 60/100

The boiler is fitted with a flue gas adapter suitable for connecting to a concentric flue gas extractor system with a diameter of 60/100. Fit the concentric pipe thoughtfully in the adapter. The built in gaskets ensure there is an air tight seal.

If required, the flue gas adapter 60/100 can be replaced by a version for a flue gas extractor system with a 80/125 diameter.

1. Carefully follow the instruction as provided with the adapter set 80/125.

2. Fit the concentric pipe thoughtfully in the adapter. The built in gaskets ensure there is an air

If required, the flue gas adapter 60/100 can be replaced by a version for a parallel flue system (2 pipes) with a 80 mm diameter.

1. Carefully follow the instruction as provided with the adapter set 80.

2. Fit the pipes for the air supply and flue gas thoughtfully in the air inlet opening and flue gas

adapter of the unit. The built in gaskets ensure there is an air tight seal. Make sure that the connections are not mixed.Daikin Europe NV

Please note that not all flue gas configurations described below are permitted in all countries. Therefore observe local regulations prior to installation.

The drawings above are a sample and can differ on details. Explanation

Category in accordance to CE

A flue that evacuates the products of combustion to the outside of

the room containing the appliance. The combustion air is drawn directly from the room. Make sure the air inlet is open and complies to the demands B33

A flue system which is connected to a common duct system. This common duct system consists of a single natural draught flue. All pressurized parts of the appliance containing products of combustion are completely enclosed by parts of the appliance supplying combustion air. Combustion air is drawn into the appliance from the room by means of a concentric duct, which encloses the flue. The air enters through defined orifices situated in the surface of the duct. Make sure the air inlet is open and complies to the demands C13

Horizontal flue system. Discharge in the outside wall.

Inlet opening for the air supply is in the same pressure zone as the discharge For example : a wall terminal through the facede. C33

Vertical flue system. Flue gas discharge via the roof.

Inlet opening for the air supply is in the same pressure zone as the discharge For example : a vertical roof terminal. C43

Joint air supply and flue gas discharge duct (CLV system)

Separate air supply and separate flue gas discharge duct.

Discharging into different pressure zones

Free in the ma rket available flue material with CE approval

Do not mix flue materials from different suppliers. C83

Joint air supply and flue gas discharge duct (CLV system)

Discharging into different pressure zones Only as twin pipe system

Air supply and flue gas discharge duct in shaft or ducted: Concentric. Air supply from existing duct. Flue gas discharge via the roof. Air supply and flue gas discharge are in Concentric flue system between the boiler and theDaikin Europe NV

the same pressure zone.

5.8 Connection to a flue system without air inlet (B23, B33)

• Make sure the boiler room complies to the regulatory requirements for connecting to a flue system in accordance to B23 or B33

• When connection the boiler to a flue system in accordance to B23 or B33 the electrical protection class is IP20 instead of IP44 General assembly

1. Slide the combustion gas outlet pipes into each other.

From the unit, every pipe has to be slid into the previous one. Mount a non-vertical combustion gas outlet pipe on a slope towards the unit (min. 5mm/m).

5.8.1 Permitted pipe lengths at parallel air supply and flue tube systems

5.9 Connection to a sealed flue system.

As the resistance of the flue tube and air supply pipes increases, the power of the unit will decrease. The maximum permitted power reduction is 5%. The resistance of the air supply and the combustible gas outlet depends on the length, diameter and all components of the pipe system. Per unit category, the total permitted pipe length has been indicated for the air supply and the combustible gas outlet.

5.9.2 Permitted pipe lengths in concentric flue tube systems

General assembly: For all outlets, the following assembly applies:

1. Slide the concentric combustion gas outlet pipe and air supply pipe.

2. Slide the concentric pipes into each other.

From the unit, every pipe has to be slid into the previous one.

3. Mount a non-vertical combustion gas outlet pipe on a slope towards the unit

4. Fit the assembly brackets in accordance with the assembly instructions of the supplier of

5.9.3 Permitted pipe lengths at parallel air supply and flue tube systems

Calculation example Pipe Pipe lengths Pipe length total Flue gas outlet L1 + L2 + L3 + 2x2 m 13 m Air supply L4 + L5 + L6 + 2x2m 12 m Note: The total pipe length is: sum of the straight pipe lengths + sum of the replacement pipe lengths of bends/knees amounts to a total of 25 meters. If this value is less than the maximum permitted pipe length, the flue gas outlet meets the requirements on this point.Daikin Europe NV

5.9.4 Free in the market available flue gas materials (C63).

The properties of the combustion determine the choices for the flue material. The standards EN 1443 and EN 1856-1 provide the necessary information for choosing the flow material by means of a sticker including an identification string. The Identification string contains the following information: A CE marking B The standard to comply to: Metal, EN 1856-2 Plastic, EN 14471 The ID string needs to contain the following information: C Temperature class : T120 D Pressure class : Pressure (P) or High Pressure (Hi) E Resistance class : W (Wet) F Resistance class in case of fire : E

Flue materials of different markings must not be combined !Daikin Europe NV

5.9.5 Securing the flue system

• These regulations are typical for both concentric and parallel flue systems.

• The flue system must be secured to a solid structure.

• The flue system should have a continuous fall back to the boiler (1.5° to 3°). N.B. Wall terminals must be installed leveled..

• Only use accompanying brackets.

• Every elbow must be secured by using the bracket. Exception at connecting on b oiler:If the lenght of the pipes before and after the first elbow, are no more than 250 mm, the second element after the first elbow has to contain a bracket. Note: The bracket must be positioned on the elbow!

• Every extension must be secured per metre with a bracket. This bracket must not be clamped around the pipe ensuring free movement of the pipe..

• Make sure bracket is locked into the correct position depending on the position of the bracket on the pipe or elbow:

• Do not mix flue parts or clamps of different suppliers.

Max. distance between clamps Vertical Others 2000 mm 1000 mm

• Divide the lengths between the brackets evenly.

• Every system must contain at least 1 bracket.

• Position the first clam at a maximum of 500 mm from the boiler.Daikin Europe NV 30Daikin Europe NV

5.9.6 Air supply from the facade and a roof outlet with communal

exhaust system Unit category: C83 An air supply from the facade and a roof outlet with communal exhaust system is permitted.

The air supply in the facade must be fitted with an inlet roster (A).

• The communal output system must be fitted with a traction extractor hood (B).

• If the communal output system is situated in the outdoors, the output pipe must be double-walled or insulated. Permitted pipe length Combustion gas outlet pipe between the unit and the communal output system and air supply pipe between the unit and the inlet roster together: EHOBG12ABV1 100 m EHOBG18ABV1 100 m The minimum diameters of the communal output system based on vacuum Flue tube diameter Number of units EHOBG12ABV1 & EHOBG18ABV1

Communal combustible gas outlet The output of the combustion gas outlet can be made in any location on the sloping roof surface, providing the outlet in the roof surface has the same orientation as the air supply in the facade. On a flat roof, the outlet of the combustion gas outlet must be made in the “free” outlet area. Fit a condense output. Note The communal outlet is certified in combination with the unit.Daikin Europe NV

The communal air supply and the communal output of the combustion gases may be carried out concentrically or separately. Permitted pipe length For parallel: Air supply and combustion gas outlet together, excluding the length of the combi feedthrough. For concentric: total pipe length, excluding the length of the combi feedthrough.

The minimum diameters of the communal air supply and flue tube system based on the continuation sheet 2001-02 inspection requirements no, 138 of Gastec.

EHOBG12ABV1 & EHOBG18ABV1

Number of units Concentric Parallel Flue gas Air supply Flue gas Air supply

• A roof outlet through a Combination Air Supply-combustion gas outlet system is permitted.

• For the communal combustion gas outlet hood and air supply hood, a declaration of no objection or a Gas certificate from the Gastec Gas institute is required.

• The passage of the pressure balancing opening at the bottom of the communal air supply and flue gas outlet system is equal to

surrounded by shaft Unit category : C93 A flue tube system according to C93 (C33) is permitted when using CE approved flue material or the flue material provided by Daikin. The ponts below have to be considered. General

• Flue outlet in shaft with 60 or 80 mm diameter (rigid or flexible).

• When using plastic flue pipe materials, a minimum temperature class of T120 applies.

• The transfer bend between concentric and vertical flue connection in the shaft must be supported in accordance with supplier instructions. The assembly instruction of the manufacturer for the flue system must always be followed in full.

• In existing installations, the shaft must be inspected and if necessary cleaned before the new installation is commissioned.

• The tightness of the shaft towards living spaces must be ensured.

Permitted pipe length and system requirements When a shaft (e.g.a brickwork chimney) has the purpose of air intake the following requirements are applicable. Flue gas pipe Dimension shaft [mm] Max. length [mtr]

6.1 Filling and air purge of unit and installation

1. Insert the unit's plug into a socket. The unit may carry out a self-check: 2 (on service display).

The unit will then go into the off setting: - (on service display) and the CH pressure is shown on the temperature display.

In case of a CH pressure lower than 0.5 bar, the CH pressure will be displayed flashing on the display. In the off setting, the CH pressure will be displayed.

2. Connect the filling hose to the fill/drain tap and fill the installation with clean drinking

water, up to a pressure between 1 and 2 bar if the installation is cold (to be read from the temperature display). 3. Aerate the system with the manual aerator (A). Upon request, an automatic aerator can be fitted onto the unit instead of the manual aerator. 4. Aerate the installation with the manual aerators on the radiators. 5. Top up the CH installation if the pressure has dipped too low due to the aeration. 6. Check all couplings for leaks. 7. Check whether the siphon is filled with water.

WARNING If the siphon is not filled with water, combustion gases may be released into the room.

WARNING If an additive is added to the CH water, it must be suitable for the materials used in the unit, such as copper, brass, stainless steel, steel, plastic and rubber. The additive should preferably have a KIWA/ATA/Atest certification.

6.1.2 DHW supply (only applicable in indirectly fired tank)

1. Open the main tap to bring the warm water section up to pressure. 2. Aerate the tank and the pipe system by opening a warm water tap. Leave the tap open until all air has flowed out of the system. 3. Check all couplings for leaks.

1. Aerate the gas pipe with the initial pressure measuring nipple (D) on the gas block. 2. Check all couplings for leaks. 3. Check the initial pressure and offset pressure (see par. 7.7).Daikin Europe NV

6.2 Commissioning the unit

CH operation or setting maximum CH temperature

Tap/CH button to set the required temperature

Tap operation or setting tap temperature

Required temperature CH or tap water in °C / pressure CH water in bar / malfunction code

Tap comfort function eco (n/a for EHOBG

Tap comfort function off / eco / on (n/a for EHOBG

Tap comfort function on (n/a for EHOBG

Service button / actual temperature during heat request

in case of a malfunction

After the following actions have been completed, the unit may be commissioned.

1. Press the button to commission the unit.

The heat exchanger will be heated up, and on the service display, 3., 4 and 7 appear (Depending on status of external eco switch and/or OpenTherm regulation). 2. Set the pump setting depending on the set maximum power and the water side resistance of the installation. For the water head of the pump and the loss of pressure of the unit: (see par. 7.4). 3. Set the room thermostat higher than the room temperature. The unit will now go into CH operation: 5 on the service display.

4. Fire up the installation.

5. Check the temperature difference between the input and return of the unit and the radiators.

This should be approximately 20°C. Set the maximum power on the service panel for this purpose (see par. 7.3). If necessary, set the pump setting and/or radiator shut-off valves. The standard setting of the pump is setting 3. The minimum feed-through amounts to: 155 l/h at a set power of 5.4 kW 510 l/h at a set power of 17.8 kW

6. Switch the unit off.

7. Purge the air from the unit and the installation after cooling down (top up if necessary).

8. Check the heating and the hot water provision for the correct functioning.

9. Instruct the user on the filling, air purging and functioning of the heating and the hot water provision.

• The unit is fitted with an electronic boiler controller which ignites the burner relay and continuously monitors the flame, at every heat request from the heating or from the hot water provision.

• The circulation pump will run at every heat request for the heating. The pump has a post-running time of 1 minute. The post-running time can be changed upon request (see par. 7.3).

• The pump will run automatically 1 time per 24 hours, for 10 seconds, in order to prevent it from getting stuck. This automatic switching on of the pump takes place 24 hours after the last heating request. To change the time, the room thermostat must be turned up for a moment at the requested time.

• For the hot water provision, the pump will not run.Daikin Europe NV

6.3 Switching off the unit

CAUTION Drain the unit and the installation, if the mains electricity supply is interrupted and there is a risk of freezing.

1. Remove the plug from the socket.

2. Drain the unit with the filling/draining tap.

3. Drain the installation at the lowest point.

4. Shut the main tap for the water supply from the hot water section.

5. Drain the unit by loosening the domestic hot water couplings under the unit.

• In order to prevent the condense outlet from freezing, the unit must be installed in a frost-free room.

• The unit is fitted with frost protection in order to prevent it from freezing. If the temperature of the heat exchanger drops too low, the pump will start running until the heat exchanger has warmed up sufficiently. If there is a risk of the installation (or a part thereof) freezing, the coldest place should be fitted with an (external) frost thermostat on the return pipe. This must be connected in accordance with the wiring diagram (see par. 10.3). Note If an (external) frost thermostat has been fitted on the installation and has been connected to the unit, it will not be active if the unit on the operating panel is switched off ( - on service display).Daikin Europe NV

7 SETTING AND ADJUSTMENT

The functioning of the unit can be influenced by means of the (parameter) settings in the boiler controller. Part of this can be configured directly via the operating panel, another part can only be adjusted by means of the installers code.

7.1 Direct via operating panel

The following functions can be operated directly. Unit on/off The button activates the unit. When the unit is active, the green LED above the button will be lit. When the unit is off, one bar will be lit on the service display (

) to show the unit is connected to the electricity supply. In this operation setting, the temperature display will also show the pressure in the CH installation (in bar). Summer mode. When parameter q is set to a value unlike 0 summer mode can be activated pressing the button. In Summer mode the central heating has been shut off while DHW remains active.Summer mode can be activated by pressing the button. again after activating the boiler.On the display [So], [Su] or [Et] appears (the code on the display depends on the setting of parameter q). Summer mode can be deactivated by pressing the button twice. The boiler will then be in normal functional mode again. Change settings of the various functions: Pressing the button for 2 seconds, will take you to the users setting menu (LED at and the number display will start to flash). If you press the button repeatedly, a different function LED will flash each time. When the LED flashes, the appropriate function can be set with the and button. The set value is displayed on the display. The on/off button closes the settings menu and the changes are not saved. The reset button closes the settings menu and saves the changes. When no button is pressed for 30 seconds, the settings menu will automatically be closed and the changes are saved.

• Maximum CH supply temperature Press the button until the LED at starts flashing. Use the and button to enter the temperature between 30°C and 90°C (default value 80°C).

• DHW Tank temperature Press the button until the LED at starts flashing. Use the and button to enter the temperature between 40°C and 65°C (default value 60°C). Control of external DHW tank

• On: ( LED on), The external DHW tank will by heated continuously .

• Eco: ( LED on) . The boiler will be heated / not heated depending on the information send by the Open Therm thermostat (provided that the thermostat supports this function). When using an on/off room thermostat or an Open Therm thermostat which does not support this function the DHW tank will be heated continuousely..

• Off: (Both LED’s off.) The boiler will not be heated. Legionella prevention When the boiler is connected to an indirect heated external DHW tank with a sensor connected to the boiler is is possible to heat up the water stored in the tank up to a minimum temperature of 65°C. This procedure can be executed on a daily or on a weekly basis (depending on the setting of parameter L. See § 7.2.Daikin Europe NV

Resetting Check the nature of the malfunction on the basis of the malfunction codes under par. 8.1 and if possible, resolve the cause of the malfunction before resetting the unit. If a locking malfunction is indicated by means of a flashing LED above the button and a number on the display, the unit can be restarted by pressing the reset button.

7.2 Parameter settings via the service code

The parameters of the burner relay have been configured in the factory in accordance with the following table. These parameters can only be changed with the service code. Take the following actions to activate the program memory:

1. Press the and the button simultaneously, until a 0 appears on the service display and a 0 on the temperature display.

2. Use the button to enter 15

(service code) on the temperature display.

5. After all the required changes have been entered, press the button until P appears on the service display.

The burner relay has now been reprogrammed. Note Pressing the button will take you out of the menu without saving the parameter changes. Example: Changing boiler from combi to 'hot domestic water only'

1. Press the and the button simultaneously.

2. Use the button to go to 15

3. Press the button 1 x. A 0 and a 1 will appear on the display.

4. Use the button to change the 0 to 2.

5. Press the button until P appears.

6. The change has now been implemented. The unit will only respond to a hot water request.

Para EHOBG*ABV1 meter Setting 12 18 Description 0 Service code [15] - - Access to installers settings, the service code must be entered (=15) 1 Installation type 1 1 0= combi 1= heating and domestic hot water via external storage tank 2= domestic hot water only 3 = heating only 2 CH pump continuous 0 0 0= post-running pump only 1= pump continuously active 2-3-5= not active 3 Set maximum CH power 99 85 Setting range value parameter c up to 85%

5. Max setting value supply water temperature

via operating panel 90 90 Setting reach 30°C to 90°C 6 Min.outdoor temperature of the heat line -7 -7 Setting reach -30 to 10°C 7 Max. outdoor temperature of the heat line 25 25 Setting reach 15°C to 30°C 8 CH pump post-running time after CH operation 1 1 Setting reach 0 to 15 minutes 9 CH pump post-running time after heating an external DHW tank 0 0 Setting reach 0 to 15 minutes (n/a for Combi unit) A Setting three-way valve 0 0 0= powered during CH operation 1= powered during hot water operation and rest 2= three-way valve in CH setting if device not in rest 3= zone regulation 4 and higher = Not active b Booster 0 0 No active C Step modulation 1 1 0= step-by-step modulation off during CH operation 1= step-by-step modulation on during CH operation c Minimum rpm CH 30 30 Settings reach 20 – 50% c. Minimum capacity modulating CH pump / Activation external power saving switch 40 40 Setting range 0,15 – (value parameter c. ) 0 = external power saving switch activatedDaikin Europe NV

input Other values : Min. capacity modulating pump. d Minimum rpm hot water 30 30 Settings reach 20 – 50% E Min. flow temperature at OT (OpenTherm) or RF thermostat 40 40 Settings reach 10 – 60°C E. Reaction OT and RF room thermostat 1 1 0= do not respond to CH request if requested temperature is lower than the set value par. E 1= respond to CH request with minimum flow water temperature limited to set value par. E 2= respond to CH request with maximum flow temperature as set in the display (on/off function)

Start rpm CH 70 70 Settings reach 40 - 99% of the set maximum rpm F. Start rpm hot water 70 70 Settings reach 40 - 99% of the set maximum rpm

Max. rpm fan (* 100 rpm) 45 46 Setting reach 40 – 50 This parameter can be used to set the maximum rpm L Legionella prevention 0 0 0 = not active 1 = legionella prevention once per week 2 = legionella prevention day to day n Regulated flow temperature during boiler operation (Ta) 80 80 Setting reach 60°C - 90°C n. Keep hot water temperature at Comfort/Eco 0 0 Setting reach: 0 or 40°C – 60°C 0= reheating temperature is equal to hot water temperature Not applicable for heating only boilers O. Delay time CH request response 0 0 Settings reach 0 – 15 minutes o Delay time CH operation after hot water operation 0 0 Settings reach 0 – 15 minutes o. Number of eco days 3 3 Settings reach 0, 1 to 10. Not applicable for heating only boilers. P Anti-recycling time during CH operation 5 5 Minimum switch off time on CH operation Can be set to 0 - 15 minutes P. Reference value hot water 0 0 Setting reach : 0, 24, 30, 36 Not applicable for heating only boilers. q Summer mode 0 0 0 = Summer mode deactivated 1 = Summer mode to be activated by button (code in display : Su) 2 = Summer mode to be activated by button (code in display : So) 3 = Summer mode to be activated by button (code in display : Et) r Heating curve coefficient 0 0 Not activeDaikin Europe NV

The maximum CH power is set to 70% in the factory. If more power is required for the CH installation, the maximum CH power can be changed by adjusting the rpm of the fan. See table: Setting CH power. This table shows the relation between the rpm of the fan and the unit power. Desired CH power in kW (approx.) Settings on service display (in % maximum rpm) EHOBG*ABV1

- 5.4 25 Caution: The power is slowly increased when the fire is lit and is lowered when the set leaving water temperature is reached (modulation on Ta).

7.4 Setting pump setting

The EHOBG**ABV1 CH boilers are fitted with a modulating A-class pump which modulates on the basis fo the CH power provided. The minimum and maximum capacity of the pump can be adjusted with the parameters 3 and c. Also see par. 7.2. The set value of parameter 3. (max. pump setting) is the percentage of the maximum pump capacity and is linked to the set maximum CH power as set with parameter 3 The set value of parameter c. (min. pump setting) is linked to the minimum CH-power as set with parameter c If the CH load modulates between the minimum and maximum value, the pump capacity will modulate along proportionately. Pressure loss graph unti CH side

A EHOBG12ABV1 & EHOBG18ABV1

X Flow over CH circuit in l/h Y Pressure loss / water head in mH

7.5 Weather dependent regulation

When connecting an outdoor sensor, the leaving water temperature is automatically regulated dependent on the outdoor temperature, in accordance with the set fuel line. The maximum leaving water temperature (T max) is set via the display. If so desired, the fuel line can be changed by using the service code (see par.7.3). Fuel line graph

7.6 Conversion to different type of gas

CAUTION Work on gas carrying parts may only be carried out by a certified installer.

If a unit is connected to a different type of gas than the one it has been set to by the manufacturer, the gas dosing ring must be replaced. Conversion sets for other types of gas are available to order. Converting the dosing ring

1. Switch off the boiler and remove the plug from the socket.

2. Shut the gas valve.

3. Remove the front panel from the unit.

4. Loosen the coupling (A) above the gas block and turn the gas mixing tube (B) backwards.

5. Replace the O-ring (C) and the gas dosing ring (D) by the rings in the conversion set.

6. Reassemble it in reverse order.

7. Open the gas valve.

8. Check whether the gas couplings before the gas block are sealed.

9. Enter the plug in the socket and switch on the boiler.

10. Check whether the gas couplings after the gas block are sealed (during operation).

11. Now check the setting of the gas/air ratio (see par. 0).

12. Put a sticker of the configured gas type on top of the existing sticker at the gas block.

13. Put a sticker of the configured gas type at the type plate.

14. Return the front panel onto the unit.

7.7 Gas/air regulation

The gas/air regulation has been set at the factory and does not require any adjustments, in principle. The setting can be checked by measuring the CO

percentage in the combustion gases or by measuring the pressure difference. In case of any disturbance, replacement of the gas block or conversion to a different type of gas, the regulation must be checked and set in accordance with the following table.

check must be carried out with open cover. If the cover is shut, the CO

% may be higher than the values stated in the above table.

% on Low setting (L) ( and ) With open cover See par. 7.8

% at High setting (H) ( and 2x) With open cover See par. 7.8 Initial gas pressure (mbar) 20 50 Gas dosing ring Natural gas H Propane P EHOBG12ABV1 460 315 EHOBG18ABV1 505 410Daikin Europe NV

7.8 Setting gas/air regulation

setting has been set at the factory and does not require any adjustments, in principle. The setting can be checked by measuring the CO

percentage in the combustion gases. In case of any disturbance of the setting, the replacement of the gas valve or the conversion to a different type of gas must be checked, and if necessary set in accordance with the following instructions. Always check the CO

percentage when the lid is open. Checking the carbon dioxide setting 1 Switch off the heat pump module with the user interface. 2 Switch off the gas boiler with the button. - appears on the service display. 3 Remove the front panel from the gas boiler. 4 Remove the cover from the sample point (X) and enter an appropriate chimney analysis probe.

IMPORTANT Ensure the start-up procedure of the analysis machine has been completed before inserting the probe in the sample point.

IMPORTANT Wait for the gas boiler to run stable. Faulty measurements may occur if the measuring probe is connected before the boiler is running stable. We recommend you wait for at least 30 minutes. 5 Switch on the gas boiler with the button and create a request for space heating. 6 Select the High setting by twice pressing the and buttons simultaneously. A capital letter “H” will appear on the service display. The user display will show a Busy symbol. Do NOT carry out a test when a small letter “h” is shown. If this is the case, press and again. 7 Allow the display values to stabilize. Wait at least 3 minutes and compare the CO

percentage to the values in the following table.

percentage at maximum power. This is important in relation to the following steps.

IMPORTANT It is NOT possible to adjust the CO

percentage when the test program is being carried out. If the CO

percentage deviates from the values in the above table, contact your local service department. 9 Select the High setting by once pressing the and buttons simultaneously. “L” appears on the service display. The user display will show a Busy symbol. 10 Allow the display values to stabilize. Wait at least 3 minutes and compare the CO

percentage to the values in the following table.

value at maximum power registered at setting High.Daikin Europe NV

11 If the CO percentage at maximum and minimum power is within the reach stated in the above tables, the CO setting of the boiler is correct. If NOT, adjust the CO setting in accordance with the instruction in the following chapter. 12 Switch off the unit by pressing the button and return the sample point to its position. Make sure it is gas tight. 13 Return the front panel to its place.

CAUTION Work on gas carrying parts may ONLY be carried out by qualified, competent individuals. Adjusting the carbon dioxide setting

IMPORTANT Only adjust the CO setting when you have first checked it and you have made sure the adjustment is necessary. No adjustments may be made to the gas valve without prior permission from your local Daikin distributor. In Belgium, the gas valve may NOT be adjusted and/or the seal may NOT be removed or broken. Contact your distributor. 1 Remove the cap (A) which covers the adjuster screw. 2 Turn the screw (B) to the right to increase the CO percentage, and to the left to decrease it. See the following table for the desired value. Measured value at maximum power Set values CO (%) at minimum power (front lid open) Natural gas 2H (G20, 20 mbar) Propane 3P (G31,30/50/37 mbar) 10.8 - 10.5±0.1 10.6 10.3±0.1 10.4 10.1±0.1 10.2 9.9±0.1 10 9.8±0.1 9.8 9.6±0.1 9.6 9.0±0.1 - 9.4 8.9±0.1 9.2 8.8±0.1 9.0 8.7±0.1 8.8 8.6±0.1 8.6 8.5±0.1 3 After measuring the CO percentage and adjusting the setting, replace the cover cap and the cap of the sample point. Make sure they are gas tight. 4 Select the High setting by twice pressing the and buttons simultaneously. A capital letter will appear on the service display. 5 Measure the CO percentage. If the CO percentage still deviates from the values in the table which indicates the CO percentage at maximum power, contact your local distributor. 6 Press + and - simultaneously to leave the test program. 7 Return the front panel to its place.

Use the key to switch the unit off, and press the button. The red malfunction LED is lit continuously, and the latest fault code is shown flashing on the temperature display. If the unit has never detected a locking malfunction, no code will be displayed. The last locking malfunction can be deleted by briefly pressing the button while pressing the button.

8.2 Malfunction codes

If the malfunction LED is flashing, the boiler controller detects a fault. A malfunction code will be shown on the temperature display. When the malfunction is rectified, the boiler controller can be restarted by pressing the reset button. The following faults can be distinguished: Temperature display Description Possible cause/solution

Unit is off. 10, 11, 12, 13, 14 Sensor fault S1

Air in the installation. Purge the air from the boiler and CH installation.

• Check wiring for break.

• Replace S1. 20, 21, 22, 23, 24 Sensor fault S2

• Replace S2. 0 Sensor fault after self-check

Air in installation. Purge the air from the boiler and CH installation.

• Pump is not running. Check the wiring between the pump and the boiler controller.

• Too little flow in installation, closed radiators, pump setting too low. 2 Switch S1 and S2

Check cable harness.

Maingas valve not opened.

• Gas supply pressure too low, or disappears.

• Condense output blocked.

• Check ignition unit and ignition cable.

• No or incorrect ignition distance.

• Gas block or ignition unit is not receiving electrical current.

• Check earthing. 5 Poor flame signal

Condense output blocked.

• Gas supply pressure too low, or disappears.

• Check ignition unit and ignition cable.

• Check setting of gas block.

• Replace boiler controller. 8 Fan rpm is not correct

Fan is coming up against cover insulation.

• Wiring between fan and cover.

• Replace boiler controller. 27 Short circuit outdoor sensor

Check the wiring of the outdoor sensor.

• Replace outdoor sensor.

• Boiler controller is not suitable for this application.

• Replace boiler controller for the appropriate version. 29, 30 Gas valve controller fault

Only replace faulty parts with the original Daikin parts. Failing to fit or incorrectly fitting the sensors S1 and/or S2 may lead to serious damage.Daikin Europe NV

Possible causes: Solution: Gas supply pressure too high. Yes The home pressure controller may be faulty. Contact the energy company.

Incorrect ignition distance. Yes Check the ignition pin distance. Replace the ignition pin.

Gas/air regulation not correctly configured. Yes Check the setting, see gas/air regulation.

Weak spark. Yes Check the ignition distance. Check and/or replace ignition cable. Replace the ignition unit on the gas block. Replace the ignition pin.

Possible causes: Solution: Gas supply pressure too low. Yes The home pressure controller may be faulty. Contact the gas company.

Recirculation combustion gases. Yes Check the combustion gas outlet and air supply.

Gas/air regulation not configured correctly. Yes Check the setting, see gas/air regulation.

Boiler controller gasket faulty. Yes Replace the boiler controller gasket.

Boiler controller faulty. Yes Replace the boiler controller.

8.3.3 No heating (CH)

Possible causes: Solution: The service display shows a hyphen (

The boiler is off. Yes Switch on the boiler with the button.

Room thermostat/weather dependent regulation not closed or faulty. Yes Check the wiring. Check OpenTherm and On/off connection of the unit. Replace the thermostat. Replace the weather-dependent regulation.

Pump is not running. Display shows 80 and 1. Yes Check the electricity supply. Check connector X2. Insert a screwdriver into the slot of the pump shaft and turn the shaft. Replace faulty pump.

No electrical supply (24 V). Yes Replace the faulty controller. Check the wiring in accordance with the diagram. Check the connector X4. Replace the faulty controller. Checking ignition pin position Pin must touch test tool Pin must not touch test toolDaikin Europe NV

8.3.4 The power is reduced

Possible causes: Solution: At a high level of rpm, the power has decreased by more than 5%. Yes Check the unit, siphon and output system for contamination. Clean unit, siphon and output system.

8.3.5 CH is not reaching correct temperature

Possible causes: Solution: Water pressure in installation is too low Yes Fill up the installation.

Setting of room thermostat is not correct. Yes Check the setting and adjust if required: Set to 0.1 A.

Temperature is set too low. Yes Increase the CH temperature. See Operation CH. If there is an outdoor sensor: Check the outdoor sensor for short circuit: rectify this.

Pump does not run properly. Pump setting is too low. Yes Increase the pump setting or replace the pump.

No flow through the installation. Yes Check whether there is a flow through the installation: at least 2 or 3 radiators must be open.

The boiler power is not set for the installation. Yes Adjust the power. See Setting maximum CH power.

No heat transfer due to contamination in the exchanger/installation. Yes Rinse the exchanger/installation on the side of the CH.

8.3.6 No hot water (only applicable in indirectly fired tank)

Possible causes: Solution: The service display shows a hyphen (

The unit is off. Yes Switch on the unit with the button.

No electricity supply on the three-way valve. Yes Check the wiring in accordance with the diagram.

Three-way valve does not switch. Yes Replace three-way valve.

No electricity supply on tank sensor/thermostat (5V DC). Yes Check the wiring in accordance with the diagram.

Boiler controller does not come in on DHW: boiler sensor/thermostat faulty. Yes Replace the tank sensor/thermostat.

Boiler controller does not ignite. Yes See boiler controller does not ignite.

8.3.7 DHW does not reach desired temperature (only applicable for indirectly fired tank)

Possible causes: Solution: Tank temperature is set too low. Yes Set tank temperature. See Setting and adjustment

8.3.8 CH installation stays warm unwanted

Possible causes: Solution/cause: Room thermostat/weather dependent regulation faulty or short circuited. Yes Check the wiring. Check OpenTherm and On/off connection of the unit. Replace the thermostat. Replace the weather-dependent regulation.Daikin Europe NV

8.3.9 A-label pump LED flashes intermittently red/green

Pump temperature is too high. Yes Check the water and ambient temperature.

8.3.10 A-label pump LED flashes red

Possible causes: Solution: Pump stopped. Yes Reset the pump by switching off the unit by pressing the on/off button for at least 20 seconds (attention: if the pump has been set to continuous, the pump can only be reset by pulling the plug from the socket). Replace the pump.Daikin Europe NV

9 MAINTENANCE The unit and the installation must be checked by a certified installer, and cleaned if necessary.

CAUTION Work on gas carrying parts may only be carried out by a certified installer. After work, check the flue gas carrying parts for air tightness. If the unit has just been operational, some parts may be hot.

1. Switch the unit off with the button.

2. Remove the plug from the socket.

3. Shut the gas valve.

4. Open the display valve and loosen the two screws on the left and right of the display,

and remove the front panel.

5. Wait until the unit has cooled down.

6. Unscrew the coupling nut at the bottom of the flue tube to the left.

7. Slide the flue gas pipe upwards (1) with a turn to the left until the bottom of the pipe

reaches above the coupling of the condense outlet container. Pull the bottom of the pipe forward (2) and remove the pipe by rotating it to the left and down (3)..

8. Lift the condense outlet tray from the connection of the siphon (4) on the left, and

turn it to the right with the siphon connection over the edge of the bottom tray (5). Push down the condense outlet tray at the back from the connection to the heat exchanger (6) and remove it from the unit.

9. Take the connector from the fan and the ignition unit from the gas block.

10. Disconnect the coupling under the gas block.

11. Unscrew the shouldered bolts (hex key) of the front lid and remove it to the front,

complete with gas block and fan (be careful not to damage the boiler controller, insulation plate, gas block, gas pipe and fan). Lay the removed front lid with the foot rests horizontally on a flat surface.

12. The boiler controller and the integrated insulation plate do not require any

maintenance (do not need cleaning). Therefore never use a brush or compressed air to clean these parts, in order to avoid dust developing.

1. Clean the bottom of the heat exchanger.

2. Clean the condense outlet tray with water.

3. Clean the siphon with water.

CAUTION The integrated insulation plate and boiler controller gasket contain ceramic fibers.Daikin Europe NV

During maintenance the seal front plate needs to be replaced. When assembling, check the other seals for damages, hardening, (hairline) fractures and/or discoloration. Where necessary, place a new seal. Also check the correct positioning.

1. Check that between the flange of the shoulder bolt and the front plate,

there is a thin layer of ceramic grease. If there is no or insufficient grease, it must be applied (see image).

2. Check whether the seal around the front plate has been fitted correctly.

Place the front plate on the heat exchanger and secure it with the special shoulder bolts (Allen bolts). Evenly tighten the shoulder bolts crosswise manually (10 – 12 Nm). For the sequence of tightening, see image. Please note: The front plate in the image has 11 shoulder bolts The front plate of the EHOBG12ABV1 and EHOBG18ABV1 has 9 shoulder bolts.

3. Evenly manually tighten the boiler controller bolts crosswise.

4. Fit the gas coupling under the gas block.

5. Fit the connector onto the fan and the ignition unit onto the gas block.

6. Fit the condense outlet tray by sliding it into the outlet stump of the switcher

(1), with the siphon connection, before the bottom tray. Then turn the condense outlet tray to the left (2) and push it down into the siphon connection (3). Make sure that the rear of the condense outlet tray ends up resting on the cam at the back of the bottom container (A).

7. Fill the siphon with water and fit it onto the connection under the condense

8. Slide the flue gas pipe, while turning it to the left, with its top around the flue

gas adapter in the top lid.. Insert the bottom into the condense outlet tray, drag the gasket down and tighten the swivel head to the right.

9. Open the gas valve and check the gas couplings under the gas block and on

the assembly bracket for leakage.

10. Check the CH and the water pipes for leakage.

11. Insert the plug into the socket.

12. Switch the unit on with the button.

13. Check the front lid, the connection of the fan to the front lid and the flue tube

14. Check the gas-air regulation (see par. 7.7 ) and check the gas coupling on

the gas block for gas tightness.

15. Assemble the cover and tighten the two screws to the left and the right of the

display, and close the display cover.

16. Check the heating and the hot water provision for correct functioning.

10.1 NTC resistances

10.2 Technical Product Fiche in accordance to CELEX-32013R0811

Product datasheet Supplier Daikin Europe NV Zandvoordestraat 300 8400 Oostende Belgium Type designation

EHOBG12ABV1 EHOBG18ABV1

Seasonal space heating energy efficiency class - - A A Heat rated output

rated kW 12 18 Seasonal space heating energy efficiency η

% 92 92 Annual energy consumption Q

dB 50 45 Efficiency class integrated controller II II Contribution to yearly efficiency % 2,0 2,0 IMPORTANT

• Please read all instructions before fitting this appliance.

• This appliance is not intended for use of persons (including children) with diminished physical, sensory or mental ability, or lack of experience and knowledge, unless supervised by, or instruction about the use of the appliance by a person who is responsible for their safety.

• The appliance and installation should every year be inspected by an qualified installer and cleaned when necessary.

• The appliance can be cleaned with a damp cloth. Don’t use aggressive or abrasive cleaning- or solventDaikin Europe NV

Earth connection exchanger

CH water pressure sensor

Leaving water sensor

Mains electricity supply

PWM control CH-pump. (5= PWM signal (red), E=earth)

6-7 On/off room thermostat (0.1A-24Vdc) and/or frost thermostat 8-9

2-4 Mains supply 230 V (2 = L (brown), 4 = N (blue)) 7-8

CH pump (8 = L (brown), 7 = N (blue)) 3-5-6 Three-way valve for external tank (3 = L (brown), 5 = Switch (black), 6 = N (blue)) (e.g. EK3WV1AA) Connector X5

11 WARRANTY CONDITIONS The general warranty conditions of Daikin Europe NV apply to this product. The warranty is void if it is determined that the faults, damages, or undue wear are attributable to improper use or inexpert treatment or inexpert repair, setting, installation or maintenance, by non-certified installers, or that it was exposed to substances with aggressive chemicals (incl. hair spray) and other damaging substances. The warranty also becomes void when pipes and couplings have been applied in the installation which may cause oxygen diffusion, or the defect is a consequence of lime scale (damaging to the unit and installation). Surface damage as well as transport damage is included under the warranty. The entitlement to warranty becomes void if it cannot be proven that the CH boiler has been subjected to maintenance by a certified installer at least once a year from the commissioning date. The instructions for installation and use which we provide for units must be followed in full. Use as intended The unit, as described in this documentation is intended for heating spaces via a central heating installation and/or the supply of hot water. Any other usage falls outside the intended use of the unit. No liability can be accepted on damage arising from incorrect use.

Environment If the unit is due for replacement, it can usually be taken back by your dealer, following consultation. Should this not be possible, consult your council for the possibilities for recycling or environmentally friendly processing of used materials. Various plastics and metals were used in the manufacturing of the unit. Furthermore, the unit contains electrical components which belong with electronic waste. Use as intended The unit, as described in this documentation is intended for heating spaces via a central heating installation and/or the supply of hot water. Any other usage falls outside the intended use of the unit. No liability can be accepted on damage arising from incorrect use.Daikin Europe NV

EHOBG12ABV1 EHOBG18ABV1

Rookgasadapter Parallel 80 mm

4. Monteer de ophangstrip.

EHOBG12ABV1 EHOBG18ABV1

A EHOBG12ABV1 E EHOBG18ABV1