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Related Manuals for Alarko HARMONY – D
Summary of Contents for Alarko HARMONY – D
- Page 1 HARMONY – D USERS, INSTALLATION AND SERVICING INSTRUCTIONS...
- Page 2 Code No: A.1.2.8i Publishing Date:200114 Revision Date: 200114...
- Page 3 Thank you for choosing ALARKO brand. This booklet covers room sealed model HARMONY-D natural gas/LPG combination boilers in ALARKO-CARRIER boiler range. In this booklet you will find the instructions for use in USE section and instructions for installation and maintenance in INSTALLATION AND MAINTENANCE section.
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Page 4: Table Of Contents
TABLE CONTENTS USER INSTRUCTIONS 1. Introduction DECLERATION OF CONFORMITY AND CERTIFICATION TERMS AND CONDITIONS OF GUARANTEE AND SERVICE Guarantee is not valid under below conditions. 1.1 Gas Safety 1.2 Course of Action in case of Gas Leakage 1.3 Contents of Packaging 2. - Page 5 4.1.2 BOILER LOCATION 4.1.3 AIR SUPPLY 4.1.4 OPENING THE PACKAGE & TRANSPORT 4.1.5 MOUNTING THE BOILER 4.1.6 Water and Gas Connections to the Boiler: 4.2 FLUE SYSTEM AND INSTALLATION 4.2.1 Sitting the Flue Terminal 4.2.2 Parts of Harmony_D RSF Flue System 4.2.3 Standard Supply (concentric horizontal) 4.2.4 Additional Kits 4.2.5 Installing the Standard Supply...
- Page 6 5.2 OPERATING ERRORS 5.2.1 Some Typical Problems 5.3 PERIODIC MAINTENANCE Automatic Control Devices 6. Use with LPG 7. COMMISSIONING 7.1 Pre Checks 7.2 Start up 7.3 Setting The Heat Input 7.4 Maximum and Minimum DHW/CH Input Adjustments (mechanical maximum and minimum) 7.5 Final Operational Checks 7.6 Commissioning –...
- Page 7 FIGURES Figure 1 Boiler Dimensions Figure 2a-b Main Parts of the Boiler/ Front-Backside View Figure 3 Water Circuit Diagram Figure 4 Control Panel Appearance Figure 5 DHW Knob Figure 6 CH Knob Figure 7 Manometer Figure 8 LCD Display Screen Figure 9 Hydraulic Group- Manual filling tab Figure 10 Transport &...
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Page 8: User Instructions
USER INSTRUCTIONS 1. Introduction In this booklet you will find users and servicing instructions of your new Harmony – D digital screen combination boiler and some useful infor- mation and technical data about it. Harmony combination boilers are the results of development, production and marketing experience, which have resulted in the current highly efficient and user-friendly models. The compact size and pleasing appearance enable them to be fitted in a wide range of locations. -
Page 9: Decleration Of Conformity And Certification
DECLERATION OF CONFORMITY AND CERTIFICATION Alarko Carrier manufacture boilers referred to in this booklet are pro- duced in conformity with below: EC Directives and can hold the CE mark. 2009/142/EC Gas Appliances Directive 92/42/EEC Efficiency Directive 2004/108/EC Electromagnetic Compatibility Directive 2006/95/EC Low Voltage Directive... -
Page 10: Gas Safety
• Absence of Guarantee Form. • The transportation risks belong to the customer if boiler is sent to service by customer and belongs to the service if boiler is taken by service. 1.1 Gas Safety It is the law that all gas appliances must be installed by a competent person in accordance with the current rules and regulations in force in the country of destination. - Page 11 Warnings! This appliance must only be used for the intended purpose of manufac- ture. Alarko Carrier Sanayi ve Ticaret A.Ş. does not take any responsibility for the damage or injury on persons, animals or objects caused by incorrect installation, service or maintenance, use except for the intended pur- pose or disobeying any of the warnings within this booklet.
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Page 12: Contents Of Packaging
rotated manually before starting the boiler after a long time of inactivity. Apply the authorized service to take more information about this pro- cess. If you charge the central heating system with hard water, this may cause blockage of the heat exchanger. Mains supply water should not exceed 15°... -
Page 13: Product Description
other positions due to various heating and hot water requirements with no inconvenience. • Lower setting of DHW temperature reduces fuel consumption. 2. Product Description Harmony-D is a room sealed mono-thermal exchanger combination boiler with 24.1 kW nominal output to provide both central heating and domestic hot water. Despite the complexity of the system, all inner pipe work and compo- nents are designed to allow easy access for the service engineer. - Page 14 • High temperature limit thermostat safety, • Temperature control with domestic hot water and central heating sensors, sensor fault warnings, • Flame detection, • Heating and domestic hot water frost protection, • Central heating and domestic hot water pump overrun, • Energy saving circulation pump, • Pump jamming prevention, • Central heating low and high pressure safety, • Domestic hot water low pressure safety, • Automatic by-pass, • Hermetic pipe blocking and fan malfunction safety, • Suitable for use with under floor heating. The technical data is shown in Table 2.1.
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Page 15: Technical Data
HARMONY_D USERS INSTALLATION AND SERVICE MANUAL 2.1 Technical Data 2.1 Technical Data Table 1 Technical Data Table 1 Technical Data Product Model Flue System/Type Hermetic/C 12 (x) Gas Class II2H3B / P Reference Gas 24.1 Maximum Heat Power (Net) kcal/hour 20726 Efficiency at 100 % Load 93.8... -
Page 16: Dimensions
HARMONY_D USERS INSTALLATION AND SERVICE MANUAL 2.2 Dimensions Figure 1 Boiler Dimensions 2.3 Internal Parts of the Boiler... -
Page 17: Internal Parts Of The Boiler
HARMONY_D USERS INSTALLATION AND SERVICE MANUAL 2.3 Internal Parts of the Boiler The main parts of the boiler and water circuit are shown in Figures 2a and 2b (Front view, The main parts of the boiler and water circuit are shown in Figures 2a backside view) and Figure 3. -
Page 18: Water Circuit
2.4 Water Circuit HARMONY_D USERS INSTALLATION AND SERVICE MANUAL 2.4 Water Circuit Figure 3 Water Circuit Diagram... -
Page 19: Control Panel
2.5 Control Panel The control panel is specially designed considering both easy setting of the boiler with only two knobs and a reset button on it and an aesthetic outside appearance with a surrounding blue LED lightening along the panel border. This lightening feature is arranged to be ON by default, while there is flame in the boiler. This property can also be rearranged according to customers liking so that the LED light can be ON or OFF continuously all the time. -
Page 20: Central Heating Control Knob
2.5.2. Central Heating Control Knob This feature allows user to set the desired temperature for the central heating system water. When central heating knob indicates the region under the legend ‘1’, central heating mode is ‘OFF’. When it passes over the position of legend ‘1’, central heating turns to mode ‘ON’. (Note that domestic hot water knob should not be in ‘OFF’... -
Page 21: Lcd Display
2.5.4. LCD Display LCD Display shows boiler operating mode, temperature and indicates the faults instantly as they arise. Digital numbers can be monitored on the blue background screen during setting the CH and DHW heating temperatures or parameters of the boiler. When the boiler is OFF, power of the screen is cut off. -
Page 22: Boiler Operation
3. BOILER OPERATION 3.1 Start-Up / Pre-Checks • Check if the electricity, gas valves and water valves are open. • Open the radiator valves. • Check if there is mains water supply. If mains water supply is OFF, heating system water might flow to the mains water installation, emp- tying the radiators. 3.2 Water Filling WARNING! Do not charge water while the boiler is running. Wait for the boiler to cool down before filling water. • If the pressure gauge shows below the lower green zone, water must be charged to the boiler and the heating system. To do this; Turn the water-filling tap at the boiler bottom slowly to open. -
Page 23: Domestic Hot Water Operation
3.3 Domestic Hot Water Operation • Turn the DHW control knob to ON ( ) position. Sign “ ” will appear and number on the screen will indicate set temperature of sanitary water. • When there is a call for hot water as a hot water tap is opened; the boiler senses the flow to the taps and, if it is in stand-by, automatically starts the ignition sequence. “ ” sign will appear on the screen. • The 3WV valve shuts down the heating system and the full boiler power becomes available to meet the hot water demand. -
Page 24: Turning The Boiler Off
3.5 Turning the boiler OFF • Turn both the CH control knob and the DHW control knob to the OFF position. • Turn the gas and electricity supplies to the boiler OFF. • If the boiler is switched OFF when there is a likelihood of frost; water in the boiler should be drained off by opening the house central heat- ing drain tap. 3.6 Central Heating System Discharge Do the following in case of a discharge of the central heating system water;... -
Page 25: Installation And Servicing
Please read these instructions carefully to ensure the correct installation and operation of the appliance. These instructions cover the room sealed HARMONY-D model in the ALARKO-CARRIER boiler range. This Installation and Servicing Manual contains information on instal- lation, commissioning, servicing procedures, description of main parts, wiring diagrams and electrical connections, adjustments and fault find- ing. A detailed fault finding section is included towards the end of the... -
Page 26: Boiler Location
5) The advice and instructions given in this document covers, as far as possible, the foreseeable situations, which may arise. Contact manufacturer for further advice if required. 6) Installation using the standard flue kit is described in the main text of .2 BOILER LOCATION these instructions. NO OTHER FLUE KITS OR EXTENSIONS MAY This appliance may be installed in any room provided that attention is drawn to BE USED WITH THIS APPLIANCE requirements of the relevant national and local rules, standards and regulations in force... -
Page 27: Air Supply
HARMONY_D USERS INSTALLATION AND SERVICE MANUAL 8) No combustible surface must be within 75 mm of the casing. If there is need to adjust near a combustible surface, follow the clearances 10) The airing space must be separated from the boiler space by a perforated non-combustible on Table 2. -
Page 28: Opening The Package & Transport
If the appliance is to be fitted in a cupboard or compartment with less clearance than those in the table above (minimum clearances are given in the “Boiler Location” section) then permanent air vents for cooling are required. Both located at high and low levels, all vents connecting directly to outside air or to a room. -
Page 29: Mounting The Boiler
4.1.5 MOUNTING THE BOILER Determine the right position for the wall-hang boiler with respect to the required clearances for servicing, general access and position of the flue. Fix the mounting bracket to the wall, with the fixings provided, en- HARMONY_D USERS INSTALLATION AND SERVICE MANUAL suring that it is horizontal. Hang the boiler on the mounting bracket and fix the boiler to the wall from the bottom. (See Fig. 11) Figure 11 Mounting Schematic with essential dimensions. -
Page 30: Flue System And Installation
ensure that the water filters at the water inlet are cleaned before finally connection the boiler to the water installation. Check that no dirt is left in either the gas or water pipe work as this could HARMONY_D USERS INSTALLATION AND SERVICE MANUAL cause damage to the appliance. Figure 12 Gas & Water Connections 4.2 FLUE SYSTEM AND INSTALLATION 4.2 FLUE SYSTEM AND INSTALLATION 4.2.1 Sitting the Flue Terminal... - Page 31 within 500 mm of painted eaves, then an aluminum shield at least 1000 mm long should be fitted to the underside of the gutter or painted sur- face. The terminal should be fitted less than 2 meters above a surface to which people have access. In certain weather conditions a terminal may steam and sitting where this could cause a nuisance should be avoided.
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Page 32: Figure 13 Flue Terminal Dimensions
regardless of the wall thickness providing that a suitable wall liner is fitted. ATTENTION! Flue terminal must be fitted with 3% downward inclination to prevent rain leaking in to the boiler. 430 mm MIN. Distance to an openable window,air vent or any other ventllation opening from below Distance to roof gutter or drainage and soil pipes from below Distance to eaves from below Distance to balconies from below... -
Page 33: Parts Of Harmony_D Rsf Flue System
HARMONY_D USERS INSTALLATION AND SERVICE MANUAL 4.2.2 Parts of Harmony_D RSF Flue System 4.2.2 Parts of Harmony_D RSF Flue System HARMONY-D HERMETİK KOMBİ BACA SETİ 58990220076 HARMONY-D YÜKSELTME SETİ 58990220076 HARMONY-D HERMETİK KOMBİ BACA SETİ 58990220076 Figure 14 The Parts of the Flue Kit... -
Page 34: Standard Supply (Concentric Horizontal)
4.2.3 Standard Supply (concentric horizontal) The appliance is supplied with a standard concentric air and flue duct system suitable for flue lengths of up to 725mm (28.5 in) measured from the centre of the fan outlet of the boiler to the outside surface of the wall (or window). The duct assembly is connected to the boiler via a turret elbow, which can be positioned to exit the boiler in any horizontal direc- tion (see Fig. - Page 35 1. The maximum permissible horizontal length of the flue system is: 3000mm. This length has to be considered 973 mm less for the use of each additional 90° elbow. 2. The standard terminal must always be fitted horizontally. The flue system must only terminate in a horizontal position. However 900 elbows may be used to drop the height of the flue system by 500 mm.
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Page 36: Figure 15 Wall Connections
HARMONY_D USERS INSTALLATION AND SERVICE MANUAL Figure 15 Wall Connections Figure 16 Extensions & Elbow... -
Page 37: Installing The Standard Supply
HARMONY_D USERS INSTALLATION AND SERVICE MANUAL 4.2.5 Installing the Standard Supply 4.2.5 Installing the Standard Supply Each boiler is supplied with standard flue system for flue lengths up to 725 mm. See Fig. 17 Each boiler is supplied with standard flue system for flue lengths up to to assemble and install the standard flue system. Reference will be made to additional kits 725 mm. See Fig. 17 to assemble and install the standard flue system. -
Page 38: Installing The Flue System With Straight Extension Kit
ATTENTION! Step 3 of Fig.17 shows how to fit the terminal duct from inside the room where access to the outside wall is not possible. Such a sliding operating can be done providing that the optional wall liner is used. (This is required to seal any cavity and to allow the sealing ring to pass through from inside and provide an adequate external seal). -
Page 39: Figure 18 Extension Flue Kit Installation
HARMONY_D USERS INSTALLATION AND SERVICE MANUAL Figure 18 Extension Flue Kit Installation Before installing the flue systems, either standard supply or with additional extensions and turns, cutting operation might be necessary to shorten the flue ducts. Determine the cutting length as described in other figures and referring to Fig.19 below to see the cutting operation. -
Page 40: Figure 19 Shortening The Ducts
Before installing the flue systems, either standard supply or with ad- ditional extensions and turns, cutting operation might be necessary to shorten the flue ducts. Determine the cutting length as described in oth- er figures and referring to Fig.19 below to see the cutting operation. Use HARMONY_D USERS INSTALLATION AND SERVICE MANUAL aluminum saw and always ensure that the cut is square and free from burrs or debris. -
Page 41: Installing Flue System With 90° Turning Kit
4.2.7 Installing Flue System with 90° Turning Kit It is possible to install the flue system with 1 or 2 pieces of 90° turns HARMONY_D USERS INSTALLATION AND SERVICE MANUAL between the boiler and the wall, provided that the total lengths allowed are not exceeded. -
Page 42: Installing Flue System With Elevation Kit
4.2.8 Installing Flue System with Elevation Kit It is also possible to elevate the flue system on top of the boiler before it makes the first turn to its horizontal path. Flue elevation kit has to be used for this purpose and it can be applied to any of the standard, extended and 90° turning flue systems described in the three sections above. Refer to Fig.21 to carry out the operation. The figure shows how to provide the elevation and this operation will only replace the final assembly between the elbow with flange and the boiler in other installa- tions described in Figs.17, 18 and 20. -
Page 43: Figure 21. Elevation Kit Installation
HARMONY_D USERS INSTALLATION AND SERVICE MANUAL elevation and this operation will only replace the final assembly between the elbow with flange and the boiler in other installations described in Figs.17, 18 and 20. Figure 21. Elevation Kit Installation... -
Page 44: Important Notes On Flue Systems
IMPORTANT NOTES ON FLUE SYSTEMS a) Flue terminal must be fitted with 3% downward inclination towards outside to prevent penetration of rain. b) Failing to comply with these instructions will invalidate the appliance certification and therefore may contravene the appropriate EC legisla- tion and local statutory requirements. c) After the flue system is completely installed, check that the terminal is correctly located on the outside wall (visibly check from outside the building where possible) and check if the wall seals provide good seal- ing. -
Page 45: Filling The System
4.3.1 Filling the system By using the water-filling tap under the boiler, one can simply fill the sys- tem with water until system pressure reaches 1-1.2 bar and then close it. If heating system has its own filling tap and if it is desired to use, the water must be filled by a competent and authorized person. In this case there must be no permanent connection to the mains water supply, even RMONY_D USERS INSTALLATION AND SERVICE MANUAL if a non-return valve is fitted (see Fig. 23). ATTENTION! Domestic hot water system parts should obey all local regulations. If there is a need to fill water at low pressure, a provision should be made. -
Page 46: Domestic Hot Water
IMPORTANT All water pipe connections throughout the sealed system must be capa- ble of holding a pressure of up to 3 bars. Radiator valves must conform to the appropriate standard. Relief valve discharge must be directed away from any electrical compo- nents or from positions where it would cause a hazard to the user. - Page 47 expansion water must not be fitted unless separate provisions have been made. • It should be taken into consideration that, in some countries, the final 600 mm. of the mains cold-water connection to the appliance should be made in copper tube only. • The appliance is suitable for mains pressure of up to 10 bar (150 lb / in²). • The appliance must be fitted with a mains supply-isolating valve. • In hydraulic group there is a regulator that controls the hot water flow. In places where main supply water pressure is low; if it is desired to have much water flow, it can be taken apart.
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Page 48: Showers, Bidets, Taps And Mixing Valves
• As the maximum temperature of the secondary (water-to-water) heat exchanger is limited by the control circuit, there is normally no need for water treatment to prevent scale accumulation. In exceptional cir- cumstances a device to prevent scale formation can be fitted. 4.3.2.1 Showers, Bidets, Taps and Mixing Valves • Hot and cold taps and mixing valves used in the system must be suitable for operating at mains pressure. -
Page 49: Electrical
3) The appliance must be earthed. 4) Use the original mains cable provided with the boiler. If there is dam- age, it should be replaced with an original spare by authorized Alarko Carrier services. - Page 50 5) The use of a frost thermostat on the boiler is not recommended since the boiler provides internal automatic protection, as long as the mains electricity and gas to the boiler are on. However, if frost protection is necessary for the system, please contact the boiler supplier. 6) Safety Check.
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Page 51: Electronic Board Wiring Diagram
HARMONY_D USERS INSTALLATION AND SERVICE MANUAL 4.4.1 ELECTRONIC BOARD WIRING DIAGRAM 4.4.1 ELECTRONIC BOARD WIRING DIAGRAM Figure 24 Main Board Diagram... -
Page 52: Conversion To Different Gases
4.5 CONVERSION TO DIFFERENT GASES The boilers are supplied to work with one of the following gas supply systems: 2H and 2E categories using reference gas G20 (Methane) at a supply pressure of 20 mbar. 3 P category using reference gas G31 (Propane) at a supply pressure of 37 mbar. -
Page 53: Operating Parameters
For G20 20 mbar For G30 29 mbar For G31 37 mbar For a mixed G30 and G31 29 mbar HARMONY_D USERS INSTALLATION AND SERVICE MANUAL 6) Start and run the boiler to inspect any abnormal situation. 5. OPERATING PARAMETERS 5. -
Page 54: Programming Operating Parameters
Parameter P03; It is used to identify the burner switch ON delay in CH mode. During a CH demand, burner is switched OFF when T flow sensor is greater than T set + 5 ºC while pump is running. When T flow sensor is lower than T set -3 ºC, burner is switched ON after the delay fixed by the parameter P03. Parameter P04; While adjusting P4 parameter, burner power follows trimmer P5 changes. Parameter P05; If parameter 5 is OFF (00), CH range is normal (30ºC- 80ºC), if it is ON (01), CH range is reduced (30ºC- 50ºC), which is suit- able for floor heating applications. -
Page 55: Parameter Selection Mode
HARMONY_D USERS INSTALLATION AND SERVICE MANUAL 5.1.2 Parameter selection mode • By pressing RESET switch for 1 touch it is possible to select param- By rotating DHW knob P1 value can be set. eters. To save the selected P1 value, leave DHW knob in the selected position and press RESET switch for 5 sec. • By pressing RESET switch for more than 5 sec., the modification * Since the display has two digits, P letter and corresponding numbers are visualized menu is entered then the actual value is shown. -
Page 56: Parameters' Adjustment
With the other mode ‘OFF’ the boiler can be adjusted to ‘turn off at “set + 8 °C” and start at “set + 7 °C”’. ATTENTION! These adjustments should be done by authorized Alarko Carrier Services. 5.1.4.1 Parameters Menu Activation • In order to enter parameter menu activation DHW knob must be out-... -
Page 57: Parameter Selection
• By pressing reset switch for 10 sec. P01 appears on LCD. Since the display has two digits P letter and corresponding number are visuali- zed alternatively. • By rotating DHW knob P1 value can be set. • To save P1 selected value leave DHW knob in the selected position and press RESET switch 5 sec. 5.1.4.2 Parameter Selection • By pressing RESET switch for 1 touch it is possible to select parame- ters. • By pressing RESET switch for more than 5 sec. the modification menu can be accessed, then the actual value will be shown. -
Page 58: Some Typical Problems
These errors mentioned above, are listed according to their priority or- ders. In the case boiler goes through non-volatile lockout, user should switch reset button after literally solving the main cause of the problem. • If ‘no-flame fault’ arises, be sure that gas valves are open and gas flow exists. During the first start-up the boiler may lockout since the gas line may contain air. This is quite normal. Reset the boiler 2 – 3 times, waiting 20 seconds between the attempts. -
Page 59: Periodic Maintenance
Filter at the cold-water inlet of the boiler might be blocked, call the ser- vice. Heating system temperature is rapidly increasing and the boiler is stop- ping! There might be air in the system. Vent the system and re-start. If the problem repeats, call the service. -
Page 60: Automatic Control Devices
• Gas soundness control (between gas inlet valve and boiler). • Water soundness control. • Cleaning of heating and hot water filters. • Safety valve control. • Heating system pressure control. • Capacity and combustion settings control. • Combustion products analysis. Automatic Control Devices • You can use “room thermostat” with your boiler to maintain desired room temperature. • With “daily time programmer”, you can set your boiler to run at desi- red time intervals and temperatures during the day. • With “weekly time programmer”, you can set your boiler to run at de- sired time intervals and temperatures during the week. • With “Wireless RF” or cable “remote control”, you can set your boiler to run at desired time intervals and temperatures during the week, you can see all the operating modes, temperatures and error codes... -
Page 61: Use With Lpg
WARNING! The boiler must be adjusted to work with LPG by the Autho- rized Service. The boiler will be out of guarantee unless 30 mbar certified regulators and the collector kit made by Alarko Carrier are used with the boiler. 7. COMMISSIONING WARNING: Several components operate on mains voltage and with the outer case removed, live components can become exposed. - Page 62 2) Fully open the domestic water supply stopcock or valve in the supply to the boiler. 3) Open the domestic water isolation valve below and adjacent to the boiler. 4) Open all hot water draw-off taps and close them when water flows. Check for water soundness of the whole domestic water system and boiler.
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Page 63: Setting The Heat Input
• Turn the DHW knob to a desired temperature position and open a water tap fully and check that the boiler lights and operates. 7.3 Setting the Heat Input The heat inputs for CENTRAL HEATING (CH) and DOMESTIC HOT WATER (DHW) are already set on the boiler when supplied from the factory. -
Page 64: Maximum And Minimum Dhw/Ch Input Adjustments
Before starting the adjustment, dismount the front panel. ATTENTION! Manometer is fixed to the front panel. Dismount the front panel, as it is stated below: Loosen the two screws, under the panel. Pull the panel slightly and loosen the nut. Take out the manometer from the panel. -
Page 65: Final Operational Checks
• Turn the red pressure regulator adjustment screw (3) clockwise up to its end position. • Set the maximum pressure to the desired value by rotating the pres- sure regulator adjustment screw (4) with a 10 mm spanner. Turning clockwise increases and anti-clockwise reduces the pressure. • Set the minimum pressure to the desired value by rotating the red mi- nimum pressure adjustment screw (3). Turning clockwise increases and anti-clockwise reduces the pressure. • Replace yellow pressure regulator cap (2) and the modulation cab- les. -
Page 66: Instructions To The User
7.7 INSTRUCTIONS TO THE USER 1) Instruct and demonstrate the lighting procedure, then advise the user of the efficient and safe operation of the boiler. 2) Instruct and demonstrate the operation of any heating system cont- rols. 3) Advise the user that to ensure the continued efficient and safe opera- tion of the appliance it is recommended that is checked and serviced at regular intervals. - Page 67 ATTENTION! Manometer is fixed to the front panel. Dismount the front panel, as it is stated below: • Loosen the two screws, under the panel. Pull the panel slightly and loosen the nut. Take out the manometer from the panel. By pushing the front panel upwards, it can be easily taken apart. • Disconnect the electric supply and isolate the boiler from gas and water installations.
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Page 68: Figure 27 Burner Plates, Igniters And Flame Sensors
HARMONY_D USERS INSTALLATION AND SERVICE MANUAL Figure 27 Burner Plates, Igniters and Flame Sensors Before taking the hood apart, cover the burner openings for not splitting any dirt from the hood. • Before taking the hood apart, cover the burner openings for not split- Pull off the electrical connections from the spade terminals on the fan motor. ting any dirt from the hood. - Page 69 • Reassemble the flue hood taking care that the rear lip of the hood is correctly located under the top lip formed on the top of the rear com- bustion chamber wall. • Replace the air deflector, fan and air pressure switch in reverse or- der. • Check the air pressure switch sensing pipes for damage and replace as required taking care to preserve the correct connection. (The pipe coming from outside air should be plugged to the switch P1 inlet; the pipe coming from fan should be plugged to the switch P2 inlet.
- Page 70 HARMONY_D USERS INSTALLATION AND SERVICE MANUAL Appendix A FAULT DETERMINATION...
- Page 72 İSTANBUL : GOSB - Gebze Org. San. Bölgesi, Ş. Bilgisu Cad. 41480 Gebze-KOCAELİ Tel: (0262) 648 60 00 - Fax: (0262) 648 60 08 ANKARA : Sedat Simavi Sok. No: 48, 06550 Çankaya - ANKARA Tel: (0312) 409 52 00 - Fax: (0312) 440 79 30 İZMİR : Akdeniz Cad. No : 14, Kat.6, Daire 601 35250 Çankaya - İZMİR...
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