8 v Av a n t a R e m e h a Installation and service manual Remeha Avanta 18v • Wall hung high-efficiency condensing boiler for open vented systems • Output 19 kW 1
Remeha Avanta 18v TABLE OF CONTENTS INTRODUCTION 4 1 SAFETY 1.1 General safety 1.2 Safety during assembly and installation 1.3 Safety during installation, inspection and maintenance 5 5 5 5 2 INSTALLATION 2.1 Scope of delivery 2.2 Mounting the boiler 2.2.1 Clearance requirements 2.2.2 Dimensions and connection points. 2.2.3 Mounting the Remeha Avanta 18v 2.3 Water-side connections 2.3.1 Water flow 2.3.2 System Pump 2.3.3 Pressure loss of the boiler 2.3.4 Open-Vented System 2.3.5 Sealed systems 2.3.
2.10 Commissioning 2.10.1 Control Panel 2.10.2 Additional guidelines for commissioning 2.10.3 Putting the boiler into operation 2.10.4 Normal start-up procedure 2.10.5 Error during the start-up procedure 2.10.6 Read out settings 2.10.7 Adjust the boiler according to the system 2.10.8 Changing the parameters at service level (with access code) 2.10.9 Changing the maximum output (Hi) for CH operation 2.10.10 Restore factory settings 2.11 Putting the boiler out of operation 2.11.
Remeha Avanta 18v INTRODUCTION The Remeha Avanta 18v is a wall mounted high-efficiency fully condensing central heating boiler, for open vented systems These technical instructions contain useful and important information for the correct installation, operation and maintenance of the Remeha Avanta 18v boiler. Read these instructions carefully before putting the boiler into operation, familiarise yourself with their control functions and operation, strictly observing the instructions given.
1 SAFETY 1.1 General safety The following pictograms are used in this Installation and Service manual to specifically draw certain points to your attention: Tip Useful tip or practical advice. Indication Important instruction in carrying out a particular operation. Warning Danger Possible danger of personal injury or material damage to the regulator, building or environment. Serious personal injury can occur because of risk of electric shocks. 1.
Remeha Avanta 18v For any issues or circumstances not addressed within these instructions, please call our Customer Care Department. Remeha Avanta 18v - PIN: 0063BQ3009 Gas Council numbers: Remeha Avanta 18v: 41-288-06 Classification type for evacuation of the combustion products; according EN 483: see par. 8.1. Health and safety information • All sealants and gaskets are free from harmful products. On first firing the boiler, a smell of these products may be present and should cease after a short period.
2 INSTALLATION 2.1 Scope of delivery The standard delivery of the Remeha Avanta 18v boiler includes: - Boiler + mounting bracket - Installation and Service manual, Quick reference card and Mounting Template - Boiler Service Log Book - Wiring diagrams - Gas cock with gasket + 90° gas pipe ( 22 mm) - nylon plugs and screws for fixing mounting plate - olives and nuts - spacers - cable glands; This Installation and Service manual deals with the standard supplied boiler only.
Remeha Avanta 18v Clearances shown are for ease of installation – once fitted it is possible to enclose the boiler in a cupboard with 25mm clearances around the casing provided a door is included to allow the front cover to be removed completely for maintenance and allowance is made to access the gas valve and flow / return connections. 40 0 mi n 25 . 0 60 0 mi n 25 . 0 0 29 00 10 . n mi 59970LTGBW7H047 400 317 2.2.2 Dimensions and connection points.
2.2.3 Mounting the Remeha Avanta 18v • • • • • • • 2x Remove template from the box. Using the template determine and mark the position of the mounting bracket and flue outlet. Drill the (Ø 8 mm) holes. Fit the (Ø 8 mm) plugs. Core drill the (Ø 125 mm) hole for the flue outlet Fit (Ø 6 mm) screws into the plugs. Remove boiler from the box and mount on bracket. ø8 mm • The boiler should be mounted on a suitable vertical wall which is able to support the weight of the boiler.
Remeha Avanta 18v Pressure Loss Graph 2.3.3 Pressure loss of the boiler 700 2.3.4 Open-Vented System The feed and expansion tank must be situated at a minimum height of 1 metre and a maximum height of 30 metres above the boiler to provide the correct operating head pressure. The cold feed must be at least 15 mm and the open vent must be at least 22 mm. The pipes must rise continuously from the system. The heating vent must be at least 450 mm above the water level in the feed and expansion cistern.
2.3.7 Water treatment If used correctly water treatment can improve the boilers efficiency and increase the anticipated life expectancy of the boiler. For further information a special document “Quality requirements CH water” is available from Broag.
Remeha Avanta 18v 2.3.8 Safety valve discharge A pressure relief safety valve is not needed for Open-Vented systems. 2.3.9 Draining Provision Drain points must be provided at all the low points of the system to ensure that the entire system can be completely drained. The boiler is provided with a drain in the return pipe. 2.3.10 Connecting the ‘CH return’ • • Remove the dust cap from the ‘CH return’ connection at the top of the boiler. Fit the return pipe to 22 mm Ø compression fitting.
2.3.12 Connecting condensate drain • • • • Connect the condensate drain outlet to a suitable waste water drain point using acid resisting pipe work (i.e. - ¾” overflow). To enable the siphon in the boiler to be removed / serviced, the connection should not be a permanent one (i.e. “push fit” system or a “tundish” immediately below the boiler). To prevent the risk of freezing connect the condensate into an internal vertical soil pipe using a tundish (air break) c/w a min 75 mm water seal trap.
Remeha Avanta 18v 2.4.3 Connecting the gas supply • • • Before starting any work on the gas supply, turn off the main isolation valve. Remove the dust cap from the gas connection at the bottom of the boiler. Connect the gas supply to the 22 mm Ø connection (copper tail supplied). • Make sure there is no dirt in the gas pipe. Blow through the pipe before installation or tap well to clear. • Make sure that there is sufficient gas pressure available (at full load > 17 mbar).
A 600 mm No flue must penetrate area within dotted lines round roof light 600 mm S 2000 mm G S F B P D,E C M A J H G L J K,N LT.AL.W7H.000.020 LTALW7H000020a Dimensions A Terminal location D E F G H J K L M N P Directly below an opening, air brick, opening window, etc. Above an opening, air brick, opening window, etc. Horizontally to an opening, air brick, opening window, etc.
Remeha Avanta 18v 2.5.2 Room sealed flue See table 02 for the maximum pipe length of flue ducts and air supply pipes for this ‘room sealed’ application. It is not necessary to provide combustion air to the room or internal space in which the boiler is installed. L Diameter in mm Ø Maximum length ‘L’ allowed [m] Standard 60/100 80/125 2 20 M&G material 60/100 80/125 8 34 2 1.4 1 0.65 80/125 or 60/100 Eq. Length of 90° elbow 59970LTGBW7H009a VRS roof mounted room sealed terminal L Eq.
2.6 Electrical connection • Connect the boiler to the fused (3 amp) switch spur unit adjacent to the boiler. • The switch unit must always be accessible. 230 V When the switch spur is on the following components of this appliance can be live (230 V): • electrical connection gas combination block; • most parts of the control unit; • ignition transformer; • X1, X2, X4, X5, X6 and X7 terminal strip; • 230 V supply cable connection. 59970LTGBW7H011 59970LGBW7H011a 2.6.
Remeha Avanta 18v The output of the Remeha Avanta 18v can be controlled in the following ways: On/off control – volt free switching - The boilers internal control will modulate the output to achieve the flow temperature set point of the boiler. This contact is on the X9 terminal strip (low voltage only). On/off control – 230 V switching - The boilers internal control will modulate the output to achieve the flow temperature set point of the boiler. This contact is on the X2 terminal strip (230 VAC only).
Terminal Block X4 1 - Neutral System pump 2 - Live E 3 4 Terminal Block X6 230v - 3 Amp Power Supply 1 - Live 2 - Neutral X2 E Terminal Block X7 X4 1 Common Alarm (Closes on alarm) 2 X5 X6 X7 Boiler Run (Closes on run) X9 3 Terminal Block X5 Neutral 1 Open valve to DHW (230v) 2 Open valve to HTG (230v) 3 For external DHW priority diverting valve on System boiler when used in conjunction with "Open Therm" compensation Terminal Block X9 Outside sensor (red band) for direct boiler weat
Remeha Avanta 18v 2.7.2 Connecting a time control using an external 230 V clock When the switch spur is on, the terminal strip X2 will be live (230 V).
2.7.4 Connecting a modulating control – room or outside compensation The Remeha Avanta 18v has an OpenTherm® interface. This enables our modulating range of OpenTherm® room controls (e.g. the Remeha Celcia 15 or 20) to be connected without any further modifications. • Mount the control in a reference room (usually the living room). • Remove existing link and connect the two-wire interface cables to connectors 7 and 8 of the X9 terminal strip.
Remeha Avanta 18v Terminal Block X9 2.7.6 Connecting the DHW sensor/thermostat 1 • 2 3 4 DHW sensor (red band) or volt free thermostat (make on temp fall) Remove existing link to use this function 5 Exist links 6 If an external DHW calorifier is being used with the Avanta 18v system boiler a DHW control sensor or volt-free thermostat can be connected to connectors 3 and 4 of the X9 terminal strip after removing the existing link.
• The integrated boiler protection described above will not provide complete system or fabric protection. • When a Celcia 20 control has been fitted to connectors 7 and 8 on X9 (see par. 2.7.4) an outside sensor as detailed in par. 2.7.5) must be used to provide system and building fabric frost protection.
Remeha Avanta 18v 2.7.11 Connecting a PC/PDA Using the optional Recom interface package a PC or PDA can be connected to the X10 “telephone connector”. Using the Recom PDA service software you can load, change and download various boiler settings and readings. See the user instructions supplied with the software/hardware. X10 Not all PDA will run the Recom software - check with Broag before buying a unit. 2.
2.9 Wiring diagram X13 X10 X9 X8 X7 X0 X6 X5 X6 L N 1 X4 X3 Power supply 230V, 50Hz 2 BL X0 X15 X1 N L BR GN/YW X2 GN/YW X4 X5 X7 X8 X9 1 2 3 4 5 1 2 3 4 1 2 3 4 1 2 3 1 2 3 1 2 3 4 1 2 3 4 5 6 7 8 NO. NC. BK BL BR WH GY BR WH GN YW COMM.
Remeha Avanta 18v 2.10 Commissioning 2.10.1 Control Panel 1 The control panel of the Remeha Avanta 18v has 4 function keys and a LED display. The function keys are used to read or change the settings and temperatures. 1 2 3 4 5 2 3 4 5 = = = = = display [reset] key [-] key [+] key [enter] key The display has two positions and displays information on the current operating status of the boiler and any errors. Numbers, dots and/or letters can appear in the display.
1. Isolating the power supply and opening the front cover 230 V • • Switch off the boiler at the fused spur and remove the fuse; Remove the front panel - release the two screws at the bottom of the front panel, pull the bottom of the panel towards you from the centre, making sure that the plastic catch is released from the central display. 2 1 1 59970LTGBW7H036 59970LTGBW7H036a 2.
Remeha Avanta 18v • Open the boiler gas valve and check the static pressure to the boiler at the measurement point (C) on the gas block. • The boiler has been factory tested for natural gas at 20 mbar. • The minimum gas inlet pressure is 17 mbar for natural gas • The minimum gas inlet pressure is 37 mbar for propane.
3. Switching the boiler on and setting the controls • • • • 230 V Replace the fuse and switch on the 230 V power supply. Set the controls to heat demand. When 230v power is first applied to the boiler or after the 230v supply has been isolated for maintenance the boiler will not start until it has fully completed its venting cycle – this will take about 3 minutes during which time the display will show f[ xx alternating with p[ xx (where xx displays the software version number).
Remeha Avanta 18v • • • • • • Unscrew the flue gas sampling cap and connect the flue gas analyser. Set boiler to full load: Press the [enter]- key, keep it pressed and also press the [+]-key until h3 appears in the display; full load has been set. Once the unit has reached the full-load fan speed, measure the O2/CO2-percentage and compare this to the values in table 04. If the values are not in accordance with the table then correct the gas /air ratio controls using the adjusting screw A on the gas block.
• • Set boiler to part load: Press the [enter]- key until l3 appears in the display, part load has been set. • Once the unit has reached the part load fan speed, measure the O2/CO2-percentage and compare this to the value in table 06. • If the values are not in accordance with the table then correct the gas /air ratio controls using the adjusting screw B on the gas block.
Remeha Avanta 18v 7. Instructing the user • It is the responsibility of the installer as part of the commissioning procedure to instruct the user in the day to day operation of the boiler and controls fitted to the system and to hand over the completed Boiler Log Book and appropriate documentation. 59970LTGBW7H020 59970LTGBW7H020a 2.10.4 Normal start-up procedure • Switch on the boiler at the fused spur unit and ensure that the time control is in the on position and any other controls (i.e.
After any error é1, é2, é7, é10 or é13 ; the 3 minute venting cycle will run first before starting the boiler. • Checking CH function; - Ensure the time control is in the CH on position - Set the room thermostat on a high demanding temperature and, the display shows [1 ; pre-purge stage [2 ; Ignition stage [3 ; operating in CH mode.
Remeha Avanta 18v 2.10.7 Adjust the boiler according to the system The operating parameters of the Remeha Avanta 18v have been factory set to suit most systems. However it is possible to adjust some of the parameters to enable the Remeha Avanta 18v to operate more efficiently to match specific system designs and site conditions. These parameters are split into two specific sections 1. User level – Parameters p 1 to p 6; can be changed by the user to suit CH and DHW comfort conditions 2.
p p To be changed by installer only p 17 18 19 p 20 p 21 p 22 p 23 p 24 p 25 p 26 p 27 p 28 p 29 p 30 P 31 Maximum fan speed CH (natural gas) Maximum fan speed CH (propane) Maximum fan speed DHW (natural gas) Maximum fan speed DHW (propane) Minimum fan speed (natural gas) Minimum fan speed (propane) Starting fan speed (natural gas) Starting fan speed (propane) Pump setting CH Pump running time after CH Connection with Heat Recovery Unit (HRU) State remote alarm (X7 terminal)
Remeha Avanta 18v The parameters can be changed from the stand-by status as follows: • Press the [enter]-key and briefly the [reset]- key until codes c and 0 appear alternately in the display. • Press the [+]-key until access code 12 is displayed. • Press the [enter]-key until p1 appears (codes p [ and [ 1 are displayed alternately); • This parameter can now be changed as follows; • Press the [enter]-key; the set value for the maximum flow temperature now appears e.g.; 75 (75°C).
2.10.9 Changing the maximum output (Hi) for CH operation The maximum output for CH operation can be changed with parameter p 17 (maximum fan speed) and is set standard to the maximum fan speed of 3500 rpm. See the speed-input ratio figures. R This parameter can be changed from the stand-by status as follows: • • • • • • • • LTALW7H000048b LT.AL.W7H.000.048 Avanta 18V Speed-output ratio 30.0 Hi input [kW] 25.0 20.0 15.0 10.0 5.
Remeha Avanta 18v 2.10.10 Restore factory settings The factory settings can be restored in the service level as follows: R 1. After parameter p31 has shown, press the [+]-key; d f and xx appear alternately; 2. Press -key; xx appears; 3. Read boiler identification plate for value of d f ; press [+] or [-] key to reach this value; 4. Press -key to confirm; d U and yy appear alternately; 5. Read boiler identification plate for value of d U ; press [+] or [-] key to reach this value; 6.
3 INSPECTION AND MAINTENANCE The Remeha Avanta 18v is practically maintenance free but should be inspected annually. If during the annual inspection the flue gas analysis indicates that the values are outside the figures given in table 09, maintenance work should be carried out as described in par.3.2. Also carry out maintenance if the ionisation read-out value is lower than 3 or higher than 9µA, or when the flame core is not satisfying. Only Remeha spare parts/materials should be used.
Remeha Avanta 18v 3.1.2 Checking the condensate siphon • Check the condensate siphon. Remove any dirt residues and refill with clean water to the mark. 59970LTGBW7H0234 59970LTGBW7H024a 3.1.
3.1.4 Checking the combustion • Measure the O2/CO2 percentage and the flue gas temperature at the flue gas sample point. Do this as follows: - heat the water temperature in the boiler to approx. 70°C; - unscrew the top of the flue gas point of measurement; - measure the O2/CO2 percentage and compare this to the check values in table 09. Ensure that the analysing probe has a gas tight seal in the sampling point with the probe end in the centre of the flue duct.
Remeha Avanta 18v 3.2 Maintenance To conduct maintenance: Ensure that a service gasket set and new ignition/ionisation electrode is available before carrying out this procedure. • Isolate power supply at the fused spur before carrying out any work on the boiler. 1.
2. Maintenance of the ignition/ionisation electrode • • • • 2x Disconnect the earth wire from the electrode mounting plate. Release the two screws on the electrode and remove the assembly. Inspect, clean re-gap or replace the electrode, see par 3.1.3. Do not over tighten the screws when replacing. 59970LTGBW7H027 59970LTGBW7H027a 3.
Remeha Avanta 18v 4. Maintenance to the burner • • Carefully clean the burner with pressured air (do not keep the nozzle to close to the surface). Visual inspection of the burner for any damages or cracks on the surface. If you see any damages, than replace the burner. 59970LTGBW7H029 59970LTGBW7H029a 5. Maintenance to the heat exchanger (CH) • • • 59970LTGBW7H030 59970LTGBW7H030a 44 Check the seal between the front plate and the heat exchanger and the insulation section. Replace sealing.
6. Re-Assembling the boiler and checking the combustion 3 • 4x Re-assemble all the components in reverse order. • Remember to connect the fan plug again before it is completely home on the front of the heat exchanger. • Check that the packing between the front plate and the heat exchanger has been fitted correctly. • • • 2 6 5 4 • Switch the boiler back on. Check the CO2/O2-percentage, 2.10.3, point 4. Check the ionisation current by reading the display, see par.3.1.
Remeha Avanta 18v 4 ERRORS 4.1 General The Remeha Avanta 18v has an advanced control unit. The heart of this control unit is a microprocessor, the abc®-control which both controls and protects the boiler. If an error is detected anywhere in the boiler, it will lock out and an error code will appear in the display. 4.2 Error codes The Remeha Avanta 18v displays the error codes as follows: é 2 (the display alternately shows an é and a number e.g.
Insufficient water. é2 é3 é4 é5 é6 é7 Check the water level and check for leaks. Check that the pump is working; turn the spindle with a screwNo through flow. driver, if that works but the pump still does not respond, check the wiring; that is in order the pump is faulty. Too much air in the system. Vent the system. Return temperaSensors not wired correctly Check the wiring between sensors and control unit. ture is higher Pump operating in wrong direction Check wiring from and to control unit.
Remeha Avanta 18v Fan is not working Fan does not stop Fan fault é8 Check: • Fan function; • Fan wiring and connection. Check: • Fan function; • Fan wiring and connection; • Excess chimney draught. Check the water level and check for leaks. Check wiring between heat exchanger fuse. Vent the system. Insufficient water. Heat exchanger faulty. Too much air in the system.
4.3 Control stop or lock-out The code ÿ8 , ÿ5 or ÿ9 can appear in the display. • Code ÿ8 is a control stop and will appear if the measured flow temperature (t1) is higher than the flow temperature set (Tset flow). The boiler will start working again automatically once the flow temperature falls below the flow temperature set. • Code ÿ5 is a control stop from 3 till 10 minutes and appears if the set flow temperature (t1) has already been reached and the heating demand still exists.
Remeha Avanta 18v 4.4.1 Error read outs R • • Press the [enter]-key and keep it pressed; Press the [reset]-key until codes c and 0 appear alternately in the display; • Enter the special access code 88 with the [+] or [-]- key; • Press the [enter]-key; the display shows ér and the number of the last error alternately, for example 02. • Press the [+] or [-]-key to go forwards or backwards in the list of errors. • Press the [enter]-key to take a closer look ot the error.
5 SERVICE PARTS 5.1 General If, following the annual inspection or maintenance any part of the boiler is found to need replacing, use Remeha spare parts only or spare parts and materials recommended by Remeha. If the component to be replaced is covered by the Remeha guarantee terms (see the Remeha General Terms of Sale and Delivery) send the component to the Remeha Quality department. Always enclose a fully completed return form, see example below.
Remeha Avanta 18v 2030 2007 2008 2009 1006 1001 2001 1003 2022 1004 2010 2006 2002 2026 4008 4007 2012 1007 2003 4009 1005 4005 2013 1002 2015 2005 2018 4001 4010 4002 4006 2011 4004 1005 2014 2016 2017 2018 2020 2004 3001 2019 3004 1007 1002 3006 3009 3003 3010 2029 3008 2028 3011 3012 2021 4012 3005 3002 2024 2023 3012 4011 4003 3004 2025 2023 2027 3015 59970EVGBW7H010b 59970EVGBW7H010 52
The enclosed (returned) component comes from boiler: Installation date of the boiler model* Avanta 18v June 2005 year/day/serialnr.
Remeha Avanta 18v 6 EC DECLARATION EC – DECLARATION OF CONFORMITY Manufacturer Address Town, Country : Remeha B.V.
7 REGULATIONS 7.1 EC regulations The boiler meets the requirements of the EC regulations at the following directives: - 90/396EEC Gas appliances directive - 92/42/EEC Efficiency directive - 73/23/EEC Electrical low voltage directive - 89/336/EEC EMC directive - 97/23/EEC Pressure equipment directive (art. 3, sub. 3) Classification type for evacuation of the combustion products; according EN 483 7.
Remeha Avanta 18v 8 TECHNICAL SPECIFICATIONS AND WORKING PRINCIPLE 8.1 Technical data Appliance type Remeha Avanta 18v General modulating or on/off Boiler control Nominal output Pn (80/60°C, CH) kW 17.6 Nominal output Pn (50/30°C, CH) kW 19.0 Nominal input Qn Hi kW 5.8 - 18.0 Nominal input Qnw Hi kW 18.
1 8.2 The boiler components 2 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 3 4 5 11 10 Flue / Air inlet connection Flue gas measuring point Heat exchanger Front plate heat exchanger Syphon Control panel Fan Air inlet tube Gas valve multiblock / Ignition transformer Ignition/ionization electrode Control unit 8.3 Working principle The Remeha Avanta 18v casing serves as a sealed air box, with air drawn in by the fan.
Remeha Avanta 18v 8.3.2 Advanced boiler control (‘abc®’-control) An intelligent advanced boiler control (‘abc®’) continuously monitors the boiler conditions and ensures a very reliable supply of heat. This control system is adept at dealing with negative influences from the system such as flow reduction, airflow problems and alike.
9 EFFICIENCY DATA AND GAS EFFICIENCY LABELS 9.1 Annual efficiency 108.7 % in relation to Hi at a load of 30% and a return temperature of 30°C. 9.2 Water-side efficiency 98 % in relation to Hi at full load and an average water temperature of 70°C (80/60°C). 94.3 % in relation to Hi at full load and an average water temperature of 40°C (50/30°C).
1 8 v Av a n t a R e m e h a LTALW7H000072a LTALW7H000070a LTALW7H000068a Broag Ltd. © Copyright All technical and technological information contained in these technical instructions, as well as any drawings and technical descriptions furnisched by us remain our property and may not be multiplied without our prior consent in writing. Remeha House Molly Millars Lane RG41 2QP WOKINGHAM, Berks. Tel: +44 118 9783434 Fax: +44 118 9786977 Internet: uk.remeha.com E-mail: boilers@broag-remeha.
