Use, Installation and Maintenance Manual AKY condensing boiler

Transcription

1 GB Use, Installation and Maintenance Manual condensing boiler Thermal Account for Public Authorities Tax deduction Yield up to 109% Yield Class: **** NOx Class: code HC GB ed.a-1705

2 AQUAKOND CONDENSING BOILER code HC GB ed.a

3 AQUAKOND CONDENSING BOILER Pessano con Bornago (MI) - Italy Via Isonzo, 1 Tel a.a. Fax Internet: Il presente documento dichiara che la macchina: With this document we declare that the unit: Modello/Model: caldaia con aerotermo ad acqua, Boiler with water Heater, Dichiarazione di Conformità Declaration of Conformity APEN GROUP S.p.A. è stata progettata e costruita in conformità con le disposizioni delle Direttive Comunitarie: has been designed and manufactured in compliance with the prescriptions of the following EC Directives: Direttiva macchine 2006/42/CE Machinery Directive 2006/42/EC Direttive Apparecchi a Gas 2009/142/CE (ex 90/396/CE) Gas Appliance Directive 2009/142/EC (ex 90/396/EC) Direttive Rendimenti 92/42/CE Directive on efficiency requirements 92/42/EEC Direttiva compatibilità elettromagnetica 2004/108/CE Electromagnetic Compatibility Directive 2004/108/EC Direttiva Bassa Tensione 2006/95/CE Low Voltage Directive 2006/95/EC Regolamento UE n.813/2013 EU Regulation n.813/2013 Qualora la macchina dovesse essere integrata in un impianto (macchine combinate), il costruttore declina ogni responsabilità se prima, l'impianto di cui farà parte non verrà dichiarato conforme alle sopracitate disposizioni (Allegato IIB della Direttiva Macchine). If the unit is to be installed into an equipment (combined), the manufacturer disclaims any responsibility if this equipment is not previously declared compliant with the requirements specified in IIB Enclosure of above said Machinery Directive. Pessano con Bornago Apen Group S.p.A. An Administrator CODE SERIAL NUMBER 3 code HC GB ed.a-1705

4 AQUAKOND CONDENSING BOILER code HC GB ed.a

5 AQUAKOND CONDENSING BOILER 5 code HC GB ed.a-1705

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7 AQUAKOND CONDENSING BOILER 7 code HC GB ed.a-1705

8 AQUAKOND CONDENSING BOILER code HC GB ed.a

9 AQUAKOND CONDENSING BOILER INDEX 1. General Cautions Safety-related warnings Fuel Gas Leaks Maintenance Power supply Use TECHNICAL FEATURES Boiler size Hydraulic circuit characteristics INAIL COMPONENTS Models and Efficiency Operation and accessories Technical Data: USER'S INSTRUCTIONS Boiler operation LCD instrument panel INSTALLATION INSTRUCTIONS Accessories for installation Boiler installation Connections to the Flue Electrical Connections GAS Connections General Installation Instructions (ITALY) Hydraulic circuit filling Transport and Handling Servicing Instructions Analysis of combustion Conversion to LPG Country Table - Gas Category Exchanger maintenance First start-up Gas Settings Table Replacing the Gas Valve Replacing the modulation PCB Modulation PCB Parameters ANALYSIS OF LOCKOUTS - FAULT WIRING DIAGRAMS /034/050/070 electric connection electric connection spare parts 46 9 code HC GB ed.a-1705

10 AQUAKOND CONDENSING BOILER 1. GENERAL CAUTIONS This manual is an integral part of the product and must always accompany it. Should the equipment be sold or passed on to someone else, always make sure that this manual is supplied with the equipment for future reference by the new owner and/or installer. The manufacturer shall not be held civilly or criminally responsible for injuries to people or animals or damages to things caused by incorrect installation, calibration and maintenance or by failure to follow the instructions contained in this manual or by operations carried out by unqualified staff. This product must be used only for the applications for which it was designed or approved. Any other use must be regarded as hazardous. During the installation, operation and maintenance of the equipment described in this manual, the user must always strictly follow the instructions given in this use and instruction manual. The equipment must be installed in compliance with current regulations and according to the manufacturer's instructions by qualified staff, technically specialised in the heating field. First start-up, conversion between different types of gas and maintenance operations must be carried out only by staff of Authorised Service Centres (for Italy, authorised by Apen Group Spa). APEN GROUP has a large network of authorised Service Centres. For more information, refer to the telephone directories or contact the manufacturer directly. We remind that Presidential Decree no. 74/2013 provides that annual maintenance of the equipment and check of thermal efficiency with a yearly or biennial frequency (according to the heat output of the equipment) are mandatory. The warranty conditions are specified on the warranty certificate supplied with this equipment. For Swiss market, reference standards are: SSIGA G1 Directive: Directive for natural gas equipment in buildings; Cantonal requirements (AICAA- Firefighting directives, Thermal technical systems (2015)) 2. SAFETY-RELATED WARNINGS The following symbol is used in this manual to attract machine operators attention. Accident prevention regulations concerning the operator and staff operating in the vicinity. Please find below the safety regulations for the installation room and the air vents Fuel Before starting up the boiler, make sure that: the gas mains supply data are compatible with the data stated on the nameplate; the combustion air intake ducts and the fume exhaust pipes are only those specified by Apen Group; the fuel intake internal and external seal is checked during the testing stage, as required by applicable standards; the boiler is supplied with the same type of fuel it has been designed for; the system is correctly sized for such flow rate and is fitted with all safety and monitoring devices required by applicable standards; the internal cleaning of gas pipes has been correctly carried out; the fuel flow rate is suitable for the power required by the boiler; the fuel supply pressure is between the range specified on the nameplate Gas Leaks If you smell gas: do not operate electrical switches, telephones or any other object/device that could produce sparks; immediately open doors and windows to create an air flow to vent the gas out of the room; close the gas valves; call for qualified staff. code HC GB ed.a

11 AQUAKOND CONDENSING BOILER 2.3. Power supply The equipment must be correctly connected to an effective earthing system, made in compliance with current regulations (IEC 64-8). Cautions With the help of qualified personnel, check the efficiency of the earthing system; Check that the mains power supply is the same as the power input stated on the equipment nameplate and in this manual; Do not mistake the neutral for the live wire. The equipment can be connected to the mains power supply with a plugsocket only if the latter does not allow live and neutral to be swapped; The electrical system and, more specifically, the cable section, must be suitable for the equipment maximum power input, shown on the nameplate and in this manual; The electric cables must be kept away from heat sources. IMPORTANT: an omnipolar switch having fuses with contact opening greater than 3 mm must be installed upstream of the power cable. The switch must be visible, accessible and positioned at a distance lower than 3 metres from the equipment. All electrical operations (installation and maintenance) must be carried out by qualified staff Use Do not allow children or inexperienced people to use any electrically powered equipment. The following instructions must be followed: do not touch the equipment with wet or damp parts of your body and/or with bare feet; do not use the gas pipes to earth electrical equipment; do not touch the hot parts of the equipment, such as the fume exhaust duct; do not place any object over the equipment; do not touch the moving parts of the equipment Maintenance Before carrying out any cleaning and maintenance operations, isolate the boiler from the mains power supply using the switch located on the electrical system and/or on the shut-out devices. If the equipment is faulty and/or incorrectly operating, switch it off and do not attempt to repair it yourself, but contact our local Technical Service Centre. All repairs must be carried out by using genuine spare parts. Failure to comply with the above instructions could compromise the safety of the equipment and invalidate the warranty. If the equipment is not used for long periods, shut the gas supply off through the gas stopcock and disconnect it from the power supply. If the boiler is to be put out of service, in addition to the above operations, potential sources of hazard on the unit must be disabled. Warning: in order to ensure the correct operation of the equipment, preventing its damage or problems for persons, it is mandatory to add a percentage of glycol to the filling water, proportional to the minimum winter temperature of the area where the boiler is installed. It is strictly FORBIDDEN to connect a system filling circuit to the waterworks mains. We recommend to check the water and glycol content inside the boiler by means of a refractometer on a yearly basis. Warnings for glycol use In case of direct intake of high doses, the product may cause effects on the central nervous system, respiratory diseases and kidney damage. Avoid contact with skin and eyes protect the respiratory tract. Do not allow the product to enter sewers, surface water and groundwater, ground. Use gloves, rubber boots and normal tight working clothing. Wear tight goggles. For further information, refer to the safety data sheet of Cookson Electronics, Alpha Metals S.p.A., Via Ghisalba 1, Bollate, Milano, Italy Tel: Fax: fernox_italy@cooksonelectronics. com For its boilers, APEN GROUP tested and recommends to use ALPHI 11 glycol by Fernox; the following KITS contain packs with different capacity: code capacity C litres C litres 11 code HC GB ed.a-1705

12 AQUAKOND CONDENSING BOILER 3. TECHNICAL FEATURES AquaKond thermal unit, running with natural gas or LPG, has been designed to meet heating requirements of environments such as garages, body shops, carpenter s shops, industrial and commercial buildings, etc.. AquaKond system consists of a boiler module, to be installed outside the room to be heated, and one or more fan units to be positioned inside the room. The system combustion circuit, located in the boiler, is completely outside. Therefore, both the gas circuit and the combustion fume circuit [B23P in standard configuration] are outside the room to be heated. The system can operate independently. To start up the unit, simply connect it to the gas mains and to the mains power supply. The boiler is equipped with the antifreeze protection, which is of course operated by power supply; to prevent any frost problem in the absence of power supply, refill the system with a waterglycol mix in a percentage that varies according to external operating temperatures [see below]. Upon delivery, 032 and 034 models have already been refilled with a 30% water-glycol mix, in order to avoid liquid freezing in case of external temperatures up to -15 C. 050, 070 and 100 models have not been refilled as the size of the boiler expansion reservoir is not able to contain the whole volume of the circuit liquid boilers comply with the manufacturing requirements concerning gas-fired equipment of heat output not exceeding 70 kw (EN483 and EN677), whereas 100 boilers comply with EN and EN standards. Condensing and premixing technology, together with flame modulation, allow achieving efficiency above 108%. The boiler exchanger, made of stainless steel, ensures a high yield and a high corrosion resistance. The burner is made entirely of stainless steel with special mechanical solutions to ensure optimal reliability and performance levels, as well as high thermal and mechanical resistance. According to the model, the different remote controls (optional) allow operation parameter setting, ambient temperature control, time programming, working phase and fault display. Inherent Safety The efficiency increase at minimum power is achieved by using a sophisticated air/gas mixing technique and by regulating at the same time the combustion air flow and the fuel gas flow. This technology increases the equipment safety as the gas valve supplies the fuel according to the air flow, based on an adjustment preset in the factory. Unlike atmospheric burners, the CO 2 content remains constant throughout the boiler operating range, allowing the boiler to increase its efficiency when the heat output reduces. If there is no combustion air, the valve will not supply gas; if the combustion air flow reduces, the valve will automatically reduce the gas flow yet will keep its combustion parameters at optimal levels. Low emissions The premixed burner, in combination with the air/gas valve, ensures "clean" efficient combustion having low emissions. code HC GB ed.a

13 AQUAKOND CONDENSING BOILER 3.1. Models and Efficiency boilers are of condensing type with modulating burner. All boilers are condensing boilers, with efficiency equal to 4 stars (Class A), in compliance with the efficiency demand set forth by all regional resolutions, even the strictest ones. 032 model is different in terms of water working temperature (75/55 C); the other models are set to 72/45 C. Efficiency with maximum heat output is greater than 100%. All models are supplied as standard with an electronic circulator characterised by variable speed and low electrical consumption. Control accessories, such as ordinary remote control, SmartControl or SmartEASY/WEB, may be used with all models. By means of the SmartControl or SmartEASY/WEB remote control [optional], it is possible to use the "ambient compensation" function (PID) that allows to reduce water delivery temperature, "sliding temperature", in inverse proportion to ambient temperature increase, thereby reaching boiler efficiency above 108% [Hi]. Note: to gain access to financing allowed for by the current budget, concerning single thermal systems with heat output above 100kW, an ambient thermostat with ambient compensation function, or sliding temperature, and the circulator characterised by variable flow must be used. 032, 034, 050 and 070 use the "cold door" exchanger, which allows to further reduce the heat losses in the housing, increasing the boiler yield. All models have been designed to achieve efficiency above 100% with respect to the lower calorific value, when the boiler supplies maximum heat output, and 108% with minimum heat output. The boiler efficiency, with water delivery at 72/75 C, has been tested and certified by the certification body. 13 code HC GB ed.a-1705

14 AQUAKOND CONDENSING BOILER 3.2. Technical Data: BOILER 032 Type of equipment B23P¹-B53P-C43-C53-C63-C83 CE approval P.I.N. 0694BT1623 Yield class [Hi] [Directive 92/42 EEC] **** Seasonal space heating energy efficiency - [Reg.813/2013/EC]² h s 91.5 Energy efficiency class [Reg.811/2013/EC] NOx class [EN 483] 5 Boiler yields Symbol* MAX MIN Burner heat output [Hi] Pn kw Useful heat output [Hi] [80/60 C] P4 kw Useful heat output [Hi] [50/30 C] kw Useful heat output at 30% of load [Hi] [50/30 C] P1 kw 10 Useful heat output [Hi] [72/45 C] kw Useful efficiency [Hi] [80/60 C] η4 % Useful efficiency [Hi] [50/30 C] % Useful efficiency at 30% of Pn [Hi] [50/30 C] η1 % Useful efficiency [Hi] [72/45 C] % Flue losses with burner on [80/60 C] % Heat loss in standby [EN ;EN ] Pstand-by kw Flue losses with burner off % 0.1 Housing losses [Taverage=60 C] % 0.4 MAX condensation l/h 0.8 Flue gas emissions Carbon monoxide - CO - [0% of 0 2 ] ppm 44ppm Nitrogen oxides - NOx - [Hi] [0% of 0 2 ] 3 30ppm - 54mg/kWh Nitrogen oxides - NOx - [Hs] [0% of 0 2 ] 3 27ppm - 48mg/kWh Fumes temperature C Pressure available at the flue Pa 120 Electrical Characteristics Supply voltage V 230V-50 Hz single-phase Rated power W Electric power of auxiliary components (excluding circulator) elmax W Electric power of auxiliary components at 30% of load (excluding circulator) elmin W 14 Electric power of auxiliary components in standby PSB W 5 Operating Temperatures C -15 C to +50 C Protection Rating IP IPX5D Hydraulic connections Maximum working pressure bar 3 Boiler water content l 4.5 Delivery/return connections - UNI ISO 7/1 - Ø G 3/4" M Gas connection Ø G 3/4" M Operating weight (water included) kg 32 Weight with packaging kg 37 A HC00046 ET 012 * Abbreviation compliant with reg. EU/811/ The boiler is supplied as standard with B23P terminal; other configurations are possible using accessories. 2 Reg. EU/813/2013 art.2 point 20. It is calculated starting from the weighted average of useful efficiency to the rated heat output and of the useful efficiency at 30% of rated heat output, expressed in %. For calculation purposes, the efficiency value is referred to the higher calorific value [Hs]. 3 CO and NOX values refer to the average weighted value of emission between maximum and minimum rated heat output according to the product standard [EN483/A2]. Values referred to cat. H (gas G20). code HC GB ed.a

15 AQUAKOND CONDENSING BOILER BOILER Type of equipment B23P¹-B53P-C43-C53-C63-C83 B23P -C63 5 CE approval P.I.N. 0694BT CR1226 Yield class [Hi] [Directive 92/42 EEC] **** Seasonal space heating energy efficiency - [Reg.813/2013/EC]² h s Energy efficiency class [Reg.811/2013/EC] A - NOx class Boiler yields Symbol* MAX MIN MAX MIN MAX MIN MAX MIN Burner heat output [Hi] Pn kw Useful heat output [Hi] [80/60 C] P4 kw Useful heat output [Hi] [50/30 C] kw Useful heat output at 30% of load [Hi] [50/30 C] P1 kw Useful heat output [Hi] [72/45 C] kw Useful efficiency [Hi] [80/60 C] η4 % Useful efficiency [Hi] [50/30 C] % Useful efficiency at 30% of Pn [Hi] [50/30 C] η1 % Useful efficiency [Hi] [72/45 C] % Flue losses with burner on [80/60 C] % Heat loss in standby [EN ;EN ] Pstand-by kw Flue losses with burner off % 0.1 Housing losses [Taverage=60 C] % MAX condensation l/h Flue gas emissions Carbon monoxide - CO - [3% of 0 2 ] - [80/60 C] - Pn³ 78ppm-97mg/kWh 76ppm-95mg/kWh 73ppm-91mg/kWh 71ppm-89mg/kWh Carbon monoxide - CO - [0% of 0 2 ] 4 ppm Nitrogen oxides - NOx - [Hi] [0% of 0 2 ] 4 22ppm-39mg/kWh 15ppm-27mg/kWh 36ppm-64mg/kWh 24ppm-43mg/kWh Nitrogen oxides - NOx - [Hs] [0% of 0 2 ] 4 20ppm-35mg/kWh 14ppm-24mg/kWh 33ppm-58mg/kWh 22ppm-39mg/kWh Fumes temperature C Pressure available at the flue Pa Electrical Characteristics Supply voltage V 230V-50 Hz single-phase Rated power W Electric power of auxiliary components (excluding circulator) elmax W Electric power of auxiliary components at 30% of load (excluding circulator) elmin W Electric power of auxiliary components in standby PSB W 5 Operating Temperatures C -15 C to +50 C Protection Rating IP IPX5D Hydraulic connections Maximum working pressure bar 3.0 Boiler water content l Delivery/return connections - UNI ISO 7/1 - Ø G 3/4" M G 1" M G 1 1/2" M Gas connection Ø G 3/4" M Operating weight (water included) kg Weight with packaging kg HC00046 ET 012 * Abbreviation compliant with reg. EU/811/ The boiler is supplied as standard with B23P terminal; other configurations are possible using accessories. 2 Reg. EU/813/2013 art.2 point 20. It is calculated starting from the weighted average of useful efficiency to the rated heat output and of the useful efficiency at 30% of rated heat output, expressed in %. For calculation purposes, the efficiency value is referred to the higher calorific value [Hs]. 3 Value referred to cat. H (gas G20) with Burner for Switzerland setting. For further details refer to page 34 table 6.2 (gas settings). 4 CO and NOX values refer to the average weighted value of emission between maximum and minimum rated heat output according to the product standard. Values referred to cat. H (gas G20). 5 The boiler is supplied as standard with C63 terminal; other configurations are possible using accessories available from our catalogue. 6 NOx class according to EN 483 for 032/034/05/070 and according to EN for for Switzerland is weakened: Burner heat output [Hi] [72/45 C] MAX: 92 kw and MIN: 20.5 kw. 15 code HC GB ed.a-1705

16 AQUAKOND CONDENSING BOILER Flow rate curve - boiler available head For its proper operation, AquaKond system requires the following water flow rates through the boiler: 32 flow rate within 900 and 1,300 l/h; 34 flow rate within 1,000 and 1,400 l/h; 50 flow rate within 1,600 and 2,000 l/h; 70 flow rate within 1,800 and 1,900 l/h; 100 flow rate within 3,200 and 3,400 l/h. The boiler can operate correctly even with lower water flow rates; in this case, to reach the maximum heat output, increase hot water delivery temperature, thereby increasing its thermal difference. 100 Curva Prevalenza disponibile/portata acqua per Caldaie serie Prevalenza [kpa] Portata [l/h] code HC GB ed.a

17 AQUAKOND CONDENSING BOILER Pipe pressure drop The table below contains pressure drop values of pipes for flow rate multiple values. The drop is indicated in kpa per 1 metre of linear length; the calculation must be made by calculating the equivalent length of the pipe. Drops are given for glycol-free C water; for water glycol mix, multiply the drops by the given factor. The last line contains the volume in litres per 1 metre of pipe. Pressure drops identified due to the various components inserted in the hydraulic system must be added up to the pipe length, according to the values indicated in the table below. Pressure drops in kpa for 1 metre of linear length Water flow rate Steel pipes Copper pipes l/h 3/4" 1" 1"1/4 1"1/2 2" 20/22 25/28 32/35 39/42 51/ , , , , , , , , , Water content l/m Equivalent length in m Steel pipes 3/4" 1" 1"1/4 1"1/2 2" 45 bend bend bend with wide radius T-shaped fitting check valve gate valve Table of freezing temperatures Glycol % Freezing temperature -11 C -15 C -18 C -22 C Glycol coefficients The table below contains the freezing temperatures of water and glycol mixes. Using a water and glycol mix, it is necessary to increase pressure drops of pipes according to the following coefficients: for a glycol mix equal to 10% of volume multiply by 1.07 for a glycol mix equal to 20% of volume multiply by 1.15 for a glycol mix equal to 30% of volume multiply by 1.22 All data refer to a FERNOX ALPHI11 monopropylene glycol and water mix recommended by APEN GROUP for AQUAKOND systems. Other types of glycol, different from the recommended one, invalidate the product warranty. 17 code HC GB ed.a-1705

18 AQUAKOND CONDENSING BOILER 3.3. Hydraulic circuit characteristics boilers have similar hydraulic circuitry; 050/070/100 models are characterised by some additional components with respect to 032/034 models, which have heat output below 35kW and therefore do not need INAIL declaration. When several systems are installed, the sum of the heat outputs is allowed only if the hydraulic circuit is shared among several boilers. 050/070/100 models, with rated heat output above 35 kw, are included in INAIL standard; therefore, the components of the boiler and the system must comply with this directive. A declaration must be submitted to the competent body. Key U.E. External unit [boiler] EV1 main gas solenoid valve EV2 secondary solenoid valve VG gas valve (EV1+EV2) FLUX water flow gauge (flowmeter) IDROM* hydrometer IPMAX** limit water pressure switch [manual reset] IPMIN** minimum water pressure switch [manual reset] NTC1 water delivery modulation temperature probe PFLUE 100 fume pressure switch P system pump (circulator) PIT** temperature inspection well PMIN/PREXpressure probe PZI** well for fuel cut-off valve R3VIE** 3-way control valve RBC filling tap STF*** NTC3 fumes temperature probe TFUMI 100 fume thermal fuse TF exchanger protection thermal fuse TDOOR 100 burner door thermostat VAG burner fan code HC GB ed.a-1705 TS safety thermostat 90 C VE expansion reservoir VS1 032/034 safety valve VS2* 050/070/100 safety valve VSC boiler vent valve U.I. Internal unit [fan heater] FAN air fan VSB battery vent valve TERM** INAIL thermometer TV fan thermostat * These components are included in the whole range. For 050/070/100 models, they are compliant with or certified according to INAIL standard. ** Components included for 050/070/100 models only, they are compliant with or certified according to INAIL standard. *** Components included for 032/034/050/070 models only. 18

19 AQUAKOND CONDENSING BOILER 3.4. INAIL COMPONENTS SAFETY, PROTECTION AND CONTROL DEVICES component abbreviation model description hydrometer IDROM PB3204BB06 WATTS INDUSTRIES limit pressure switch IPMAX PMR/5-R2 ITALTECNICA minimum pressure switch IPMIN LPR/5 ITALTECNICA inspection well PIT ITALTECNICA PGUA0TT003 WATTS INDUSTRIES 3-way control valve R3VIE 403R14 WATTS INDUSTRIES thermometer TERM PT4A WATTS INDUSTRIES class UNI2.5 pressure gauge, scale 0-4bar p max,es.= +25% f.s., T=-20/90 C compliant with INAIL pressure switch p=1 3bar INAIL approval certificate No. 0605/10/EC pressure switch p= bar INAIL approval certificate No. 0206/08/EC INAIL approval certificate No. PS/001/10 control well L=45mm, 1/2 connection compliant with INAIL 3-way valve, 1/4 connection, T max,es =90 C, P max,es =15bar compliant with INAIL 1/2" connection with well T=0/120 C UNI 2 accuracy class, compliant with INAIL expansion reservoir VE 13S ZILMET 10-litre capacity, 3/4 connection, pre-charge 0.75bar P max,es =3bar, T max,es =99 C certified 97/23/EC directive safety valve VS /2"Fx3/4"F connections, 2.7 bar calibration, 15-mm diameter CALEFFI kw drain output. Tmax=110 CV INAIL approval certificate No.VS/319/00 safety thermostat TS 1NT08L Sensata NC contact thermostat, opening T=90±4 C T es =-20/+180 C, KEMA certificate NOTE: Water circuit test According to INAIL standard, the boiler body is tested at a pressure of 4.5 bar, i.e. 1.5 times the maximum working pressure. NOTE: Distance between the expansion reservoir and the safety valve [050/070/100 only]. According to INAIL standard, the distance between the expansion reservoir centreline surface and the safety valve centreline surface is 450mm. NOTE: Fuel cut-off valve [050/070/100 only]. In case of equipment above 35kW, INAIL standard compulsorily requires that a fuel cut-off valve must be used. The boiler is equipped with the well for the sensitive component of the fuel cut-off valve: the valve kit is available as an accessory (code C09073). NOTE: Expansion reservoir All boilers are equipped with a 10-litre expansion reservoir, whose pre-charge is 0.75 bar. When the system water content exceeds litres, an expansion reservoir with suitable capacity must be added. Boiler water contents are summarised below; as far as pipes are concerned, refer to page 17 in this manual. WATER CONTENT Boiler litres Boiler litres Boiler litres Boiler litres Boiler litres 19 code HC GB ed.a-1705

20 AQUAKOND CONDENSING BOILER 3.5. Boiler size / / / /070 HC0047 C Dimension Description 032/ / GAS SUPPLY G3/4" 2 WATER RETURN G3/4" G1" G1 1/2" 3 WATER DELIVERY G3/4" G1" G1 1/2" 4 SAFETY VALVE G1/2" SAFETY VALVE - G1/2" G1/2" 6 SYSTEM FILLING TAP G1/2" 7 CONDENSATE DRAIN Ø18 mm 8 ELECTRICAL CONNECTIONS PG 09 9 FUEL CUT-OFF VALVE PASSAGE Ø14mm 10 FLUE GAS DISCHARGE CHIMNEY 60mm 100 mm code HC GB ed.a

21 AQUAKOND CONDENSING BOILER 3.6. Operation and accessories The boiler is fitted as standard with a multifunction LCD panel located inside it, and is used to control, configure and diagnose all operating parameters of the equipment. The "LCD control paragraph explains its operation. This panel cannot be remotely controlled. B operation: G20800IT SmartControl chronothermostat The control operates as a chronothermostat and can be used as a monitoring device for a single zone system at the same temperature, where up to 30 boilers can be installed simultaneously, controlled by a single control. Being a single zone system, only one ambient temperature and one calendar can be set for the entire zone being monitored. The chronothermostat is equipped with a very bright, easy to read LED display, where all the parameters of the connected boilers can be read and set up; it also allows users to control the boilers auto or manual mode, to check the burner operation, to plan a weekly, annual calendar and to control the daily time ranges. Ambient Temperature adjustment The boiler is supplied without remote control and/or ambient thermostat as it can operate with different remote controls, some of which are supplied by APEN GROUP as accessories, whilst others are commercially available. Operating modes: A) ordinary thermostat, or chronothermostat, with a clean digital contact to be connected to the boiler ID2/IDC2 terminals; B) SmartControl code G20800IT; C) SmartEASY/WEB code G23500/G This manual will describe "A operation, providing information about Aquakond system modes. Instructions on how to operate the SmartControl and SmartEASY/WEB chronothermostats can be found in manuals supplied with the accessory. Equipment main functions The system is equipped with the following functions: Circulator anti-lock and variable speed; Antifreeze. A operation: ordinary remote control The Customer must install a chronothermostat or an ambient thermostat with a voltage free dry contact, between ID2/IDC2 terminals; the boiler will switch on when the contact is open and it will switch off when the contact is closed. The modulation is applied to water delivery temperature that remains fixed at the preset value [72 or 75 C according to the series]. When several ambient units are connected and one of them is turned off, the boiler automatically reduces the heat output while keeping the delivery temperature fixed. Boiler lockout and reset, available inside it, can be remotely indicated with the APEN remote control code C C operation: G23500/G23700 SmartEASY/WEB SmartEASY/WEB touchscreen control has been designed to control several ApenGroup equipment for heating, ventilation and cooling. The control facilitates programming when several systems are installed (possibility to connect up to 32 systems), allows to have a view of the whole system, to reset the systems directly from the panel, as well as to control and manage lockouts. Main features: Simplified connection by means of two polarised cables and two power cables A temperature probe installed on the control Possibility to connect up to three remote temperature probes Multilingual 4.3 touchscreen colour display Complete management of the operating parameters Domestic hot water management control, if combined with a tank Built-in or flush with the wall installation In the SMART WEB version, complete management of the control and its functions through the network For operating instructions and installation diagrams, please refer to the manual of SmartEASY/WEB control. Reset button Boiler ON/OFF switch Lockout signalling light 21 code HC GB ed.a-1705

22 AQUAKOND CONDENSING BOILER 4. USER'S INSTRUCTIONS Please read the safety warnings described in the previous pages. The operations that the user must carry out are limited to the use of the controls placed in the remote control and/or on the ambient Boiler operation Boiler operation is fully automatic; it is equipped with electronic equipment with self check facility that manages all the burner control and monitoring operations and with a microprocessor based electronic PCB that controls the heat output regulation. As mentioned above, the explanation focuses on the boiler without accessories; for information about SmartControl and Smart EASY/WEB operation, refer to the manuals supplied with the accessory. The boiler is switched on when the following two conditions are met: the boiler is powered on and has not been locked out; when the contact is closed on ID2/IDC2 terminals of the boiler PCB In these conditions the burner circulator and fan will be immediately started; after pre-cleaning time has elapsed, the flame will light up with an ignition power equal to approximately 50% of its maximum output. Once the flame stabilising time has expired, the burner will start to modulate its heat output according to the delivery temperature: water delivery temperature setpoint is set to 72 C (75 C for 032 model). If a lockout occurs because there is no flame during the ignition phase, the boiler will make other 4 ignition attempts; at the fifth attempt, if ignition is not successful, the boiler will be locked out. The boiler will be switched off when the ID2/IDC2 contact opens on the boiler terminal box; disconnecting the boiler power supply is prohibited, except for emergencies, because, when the boiler is switched off, the circulator will continue to work for approximately 3 5 minutes so as to eliminate any residual heat in the boiler (water post-circulation); the fume fan too will continue to work for approximately 15 seconds to clean up the combustion chamber (combustion chamber post-cleaning phase) Ambient temperature setting Connecting an ambient thermostat (chronothermostat) or an ON/OFF switch is compulsory. If a thermostat supplied by third parties is installed, the ambient temperature must be programmed on the thermostat. In this type of installation, we recommend that a C09660 remote control is used to allow users to check the conditions for the lockout and, if necessary, to remotely reset it without accessing the external boiler Lockout and Reset Any operation fault is signalled on the C09660 remote control by means of a red light. The light indicates an alarm, but it does not indicate the type of alarm occurred. To reset, press the button below the light. The error code, from F01 to F99, is signalled by the display located inside the boiler and/or by the SmartControl or SmartEASY/ WEB, if connected. Using the LCD panel located inside the boiler, unlock by pressing the two arrows simultaneously for a few seconds. The error codes are described below Boiler temperature setting When the boiler is delivered, the ST1 value, water delivery temperature setpoint, has already been set to 72 C (75 C for 032 model); the parameter can be modified by means of the LCD panel inside the boiler or through SmartControl or SmartEASY/WEB Circulator anti-lock and variable speed The function, which is enabled by default, starts the circulator when it fails to operate for twenty-four hours in a row; the circulator works for 120 seconds and then it stops. The circulator modifies its speed according to the heat output; two parameters set the level under which the minimum speed is activated Antifreeze The function is enabled by default (d8=1) and operates on two levels: when water temperature drops below a first value, the circulator is activated in order to circulate water around the system; when it drops below a second value, the burner too is switched on for the time required to warm up the system water. reset button Lockout signalling light Boiler ON/OFF switch C09660 remote control code HC GB ed.a

23 AQUAKOND CONDENSING BOILER 4.2. LCD instrument panel The instrument panel is fitted with a red 3-digit LCD display and with four function keys:,, ESC and ENTER; The screen allows the user to display the boiler operating mode, the Faults, water pressure inside the hydraulic circuit and the reading of probe values. It also allows the service centre to change the main operating parameters. Changing parameters requires a password Viewing the machine status The machine status is shown on the display by the following wordings: rdy the machine is on without burner flame, it is waiting for the ON control and/or the heat demand from the thermostat On the machine is on with burner flame on; OFF the machine has been switched off through the LCD control; any heat demands will be ignored. To light the boiler, the LCD must show the wording "operation ON"; Fxx Fault detected. During normal operation, the display will show the wording On if the burner is on; rdy when the boiler is being switched off or the room temperature has been reached. If the boiler is connected to a SmartControl and/or to the SMART. NET, the PCB address must be set to a value different from Ø. In this case, every 30 seconds and for the following 5 seconds, the display shows the PCB modbus address as Axx, where xx is the programmed address. In the event of communication problems between CPU-SMART PCB and LCD panel, the word CPU will flash on the display if the problem is caused by the CPU; three flashing dots will be displayed if the problem is caused by the display PCB. If needs be, check that the display and the PCB are correctly connected and that the small cable RJ11 is securely held in the connector Menu Navigation The menu has three levels. The first is accessible without entering a password, the second and third require entering second and third level passwords. If the boiler PCB is connected to a SmartControl or to the SmartEASY/WEB, and therefore with an address different from Ø, parameters can only be viewed and cannot be modified. The Service Centre that is required to use all menus must follow these instructions: - disconnect the power supply; - set the PCB address to Ø; - restore power; - after finishing the work, please remember to reset the switches to the previously set position. Use the arrows to scroll the menus: UAR (up arrow ) and DAR (down arrow ). Press ENTER to select the menu, and again to select the parameter. Change the parameter with the arrows and confirm the change by pressing ENTER. To exit the parameter or menu, press ESC. If you exit the programming function, after about 10 minutes the program will exit the menu and go back to the "machine status" display. To change the parameter, press the arrow keys: pressing UAR increases the parameter by 1, pressing DAR reduces it by 1. When the arrow keys are pressed for at least three seconds, the parameter scrolling speed is increased. To confirm a change in parameters, press ENTER for at least 3 seconds. A change in the parameter is indicate by the display flashing. All submenus can be scrolled from the bottom to the top, and they start over when the end of the menu is reached and vice versa Entering the password From the initial screen (ON/OFF/rdy/FXX) use the (up arrow) and (down arrow) keys to reach the ABI function; hold down the ENTER key for 3 seconds; Set the password inside the ABI menu and confirm it with ENTER; hold it down for approximately 3 seconds (the flashing display will confirm that the parameter has been stored); Press ESC and, by using the and arrow keys, return to the initial screen (ON/OFF/rdy/FXX); press ENTER for 3 seconds; Use the and arrow keys to reach the desired menu item (Flt, I/O, SET, PAR); Press ENTER to access the function; Use the and arrow keys to select the parameters to be displayed and edited; Press ENTER to display the parameter value; Use the and arrow keys to edit the value (only SET and PAR); Press ENTER to confirm the change made; To exit the parameter and the menu, press ESC until the initial screen is displayed (ON/OFF/rdy/FXX) Level 1 menu The first level in the menu consists of the following items: 1. machine status: ON, rdy, OFF; 2. FUn, it allows to force the ON, OFF operation type; this menu can be accessed only in case of Stand-Alone configuration (ModBus address equal to Ø); when the address is different from Ø, this menu cannot be accessed; 3. reg, it allows to force the burner at minimum (Lo) or maximum (Hi) output in order to perform combustion tests; 4. tin, it shows the input voltage value (0/10Vdc) if the boiler is connected to a cascade management control unit; 5. PrA, it shows water pressure inside the hydraulic circuit. It is used to load, and to control, the pressure inside the boiler and the hydraulic circuit. If the 01.6 value is displayed, the pressure inside the circuit is 1.60 bar; 6. Abi. Entering the second or third level password allows to switch from the Abi menu to the underlying menus. 7. FRC allows to operate the circulator manually. Selecting the key for 3 sec will provide access to BLO submenu. Pressing the UAR key (up arrow ) starts the circulator. Releasing the UAR key (up arrow ) stops the circulator. Note: To display water pressure value, press Enter when PrA is shown. 23 code HC GB ed.a-1705

24 AQUAKOND CONDENSING BOILER Second level menu The second and third level menus are reserved to the Service Centre and can be accessed only by entering a password, which can be requested to the manufacturer's Service Centre FAULT list In the event of a lockout, the boiler PCB will display a code, which indicates what problem has occurred. To reset the boiler, simply press the LCD panel arrow keys simultaneously for at least 3 seconds or operate one of the remote controls provided. Faults are classified according to the type of error and are indicated on page 41 Par.8. ANALYSIS OF LOCKOUTS - FAULT Antifreeze Function The function is activated as a precaution to avoid any fuel cut-off valve activation when temperatures are near zero. Filling the system with the right amount of water and glycol is deemed the best antifreeze method (it protects the system even in case of blackout). To activate the antifreeze function, set d8=1 according to water temperature, STA antifreeze setpoint and PA hysteresis; the circulator and, if necessary, the burner too will be activated. When the antifreeze function is on, the boiler behaves as follows: NTC1>(STA+PA): system in standby; NTC1<(STA+PA): water circulation on; NTC1<(STA-PA): water circulation and burner on. 5. INSTALLATION INSTRUCTIONS Instructions for installing and setting the boiler are intended for suitably qualified personnel only. Please read the safety warnings. N.B.: the installer must instruct the user about the use of the machine and inform him/her about the presence, in this manual, of a chapter fully intended for the final user General Installation Instructions (ITALY) The boiler installation must be carried out in compliance with the current regulations concerning design, installation and maintenance of thermal systems. Reference standards: Ministerial Decree no. 74 of 12 April 1996 containing the fire prevention rules for design, construction and operation of thermal systems fired with gaseous fuels; Presidential Decree no.412/93 which regulates design, installation, operation and maintenance of thermal systems; Presidential Decree no.551/99: regulation amending Decree 412/93; Law no.10/91: rules for implementing the national energy plan in the field of the rational use of energy, energy savings and the development of renewable energy sources; Standard UNI-CIG 7129 regarding the installation of natural gas equipment; Standard UNI-CIG 7131 regarding the installation of LPG equipment; Law 186 of 01 March 1986 regarding the installation of electrical systems; INAIL standard Ministerial Decree 01/12/1975; Law no. 192/05 of 19/08/2005; Legislative Decree no. 311 of 29/12/2006; Ministerial Decree no. 37 of 22/01/2008; and subsequent amendments and/or integrations Transport and Handling The boiler and the internal units making up AquaKond system are packaged individually inside cardboard boxes. Unload the equipment from the truck and move it to the site of installation by using means of transport suitable for the shape of the load and for its weight. If the thermal unit is stored at the customer s premises, make sure a suitable place is selected, sheltered from rain and from excessive humidity, for the shortest possible time. Any lifting and transport operations must be carried out by skilled staff, adequately trained and informed on the working procedures and safety regulations. Recovered packaging materials must be separated and disposed of according to applicable regulations in the country of use. While unpacking the unit, check that the unit and all its parts have not been damaged during transport and match the order. If damages have occurred or parts are found to be missing, immediately contact the supplier. Note The manufacturer is not liable for any damages occurred during transport, handling, unloading, etc. code HC GB ed.a

25 AQUAKOND CONDENSING BOILER 5.3. Accessories for installation The supply of the equipment includes: boilers: no. 1 paper template to position the external module; no. 2 flexible hoses for every single boiler (G1" for 050/070, G3/4" for 032/034), length 0.5 metres, with relevant gaskets; no bend Ø60 made of plastic material; no. 1 fume exhaust terminal Ø60 L=400mm made of plastic material complete with fume extraction intake; no. 1 gas tap (G3/4") complete with copper pipe and gaskets to connect it to the gas valve. 100 boilers: no. 1 paper template to position the external module; no. 2 G1 taps 1/2''; no. 1 gas tap (G3/4") complete with copper pipe and gaskets to connect it to the gas valve Boiler installation The optimal installation height for the internal unit is about 2.5 m above ground. The boiler should be installed at the lowest point of the hydraulic circuit to which it is connected, in order to avoid any air bubbles inside water circuit Boiler installation procedure Fix the template supplied to the wall and level it; m a k e two holes to fix the boiler to the wall and a through hole for the internal unit connections. To hang the boiler, apply rawlplugs with M8 external screws (M10 for 100). Note: Make sure that the type of plug (not supplied) is suitable for the type of wall and sufficient to support the weight of the boiler. Hang the boiler and secure it using star washers. For 032, 034, 050 and 070, connect the flexible hoses supplied with the equipment to the boiler delivery and return connections, inserting the corresponding gaskets and preventing foreign bodies from entering. The flexible hoses supplied with the equipment allow a maximum distance of 1 metre between the boiler connections and the internal unit connections. Note: it is mandatory to install a Y-shaped filter on water input of the boiler, to prevent clogging of boiler exchanger. In case of greater lengths, rigid pipes having a suitable diameter are required. To connect the boiler and the internal unit to the rigid pipe, use the flexible hoses L=0.5m supplied with the equipment (for 032, 034, 050 and 070 only). Technical data chapter contains the flow rate/head graphs available for the boiler. Table on page 17 provides an approximate sizing of the diameter of pipes. Note: at the end of the installation, visually make sure that the boiler is slanted backwards in order to facilitate the flow of condensate coming from the fume exhaust. Alternatively, insert a shim between the lower part of the boiler and the wall to increase the slope Ambient temperature adjustment We can discriminate between two different types of installation and, therefore, ambient temperature adjustment: single zone system boiler; multi-zone system boiler. Installation in a single room To heat a single room, only one SmartControl regulator or ambient thermostat controlling boiler start-up is required. SmartControl allows to manage up to 30 boilers, provided that they are located in a single zone: ambient temperature and start-up times are the same for all the boilers. Installation in different rooms In this case, the temperature regulator allows to either control ventilation only or to divide the hydraulic system into several zones. In the first case: install an ambient thermostat, or chronothermostat, in each room and a relay having two free contacts for each zone; use the ambient thermostat contact to control the relay coil; use one of the relay contacts to power the ambient unit located in the zone to be heated; use the other relay contact, in parallel to the relay contacts of the other zones, to close the ID2/IDC2 boiler terminals (boiler remote permission); this allows the boiler to start when at least one thermostat sends the heat demand. Water circulates inside all the ambient units, partially heating the rooms that are not involved too. Note: When all the thermostats are set to OFF, the boiler is off too; In the second case: Install a zone valve and an ambient thermostat or chronothermostat or SmartControl for each room; Use the zone valve limit switch, in parallel to the other zone valve contacts, to close the ID2/IDC2 boiler terminals. In this case, when a zone is open, the boiler starts and water circulates in the emission unit of the zone involved only. When all the zones are closed, the boiler is off. Note: In both cases, the boiler may be connected to SmartControl paying attention not to activate the ambient thermostat function; it is therefore necessary to set the required temperature to a value that does not interfere with the other thermostats, e.g. 35 C. If the boiler available head is not sufficient for the hydraulic system circuit, supply the system with another circulator compatible with the boiler circulator flow rate. To install another circulator, the boiler and the circulator must be divided by a hydraulic separator between primary circuit [T1 and T2 boiler] and secondary circuit [T3 and T4 device]. HC0047 C code HC GB ed.a-1705

26 1 AQUAKOND CONDENSING BOILER 5.5. Electrical Connections Boiler power supply The boiler must be correctly connected to an effective earthing system, fitted in compliance with current legislation. Single phase 230Vac power supply with neutral; do not swap the neutral with the live wire. For safety reasons, if the live and neutral wires are swapped, the flame control prevents operation reaching F10. The boiler can be connected to the mains power supply with a plug-socket only if the latter does not allow live and neutral to be swapped. The electrical system, and more specifically the cable section, must be suitable for the equipment maximum power consumption (see technical features table). Keep electric cables away from heat sources. Note: IT IS compulsory to fit, upstream of the boiler, a multipole isolator fitted with a suitable electric protection element. Cable section: live, neutral and earth cable section 1.0 mm² Connecting the ambient thermostat and the C09660 remote control Power supply plug RS I/0 C09660 HC0047 C2 009 CN03 CN04 +12V D+ D- CN13 NTC1 NTC1 NTC2 NTC2 NTC3 NTC3 CN07 U8 R64 R67 TS1 R65 C28 R83 R91 R90 C35 F4 LC4 R71 TS2 R69 R76 R75 C33 R82 C36 R92 R89 U10 U11 U12 U13 F3 LC3 R63 C26 C30 R54 R51 R50 R49 R56 R86 C31 R87 C37 R95 C32 C39 +28V HALL PWM R58 R70 R79 R81 R77 R78 R88 R84 R85 R98 R93 R94 R99 C38 R96 U5 R80 R97 R45 R25 R26 R28 D16 C34 D15 C29 D17 D11 C25 R21 Q1 R73 R66 U9 R74 R68 CN06 R23 R72 R7 C27 R9 B1 SW1 RR1 C2 D12 C18 D3 CN08 D8 R30 R29 R24 R27 R22 R8 C17 B2 R19 R10 ID6 C22 C20 D10 C7 XT1 C23 R59 C3 R17 U4 C14 J1 U1 C1 +5V R61 IDC6 R57 D9 C12 R34 C11 R62 D1 D4 R35 C21 R55 R6 R5 R2 R4 R1 ID5 R20 R60 C9 C8 R48 R52 U2 DZ1 D2 R3 R18 R33 B3 R47 R53 IDC5 C10 C16 C15 GREY D5 R107 +5V R37 R32 F9 R106 LC6 ID4 R14 R38 R36 R31 C4 C50 Q5 D20 Q6 IDC4 R11 C49 D6 C41 C43 L1 U15 R108 R109 R105 R110 R104 ID3 C48 C44 F8 CN15 BROWN R15 D21 Q4 C5 C42 C47 IDC2 R12 D18 U14 C40 C45 R102 C46 GREEN D7 R103 R100 ID2 R16 TA C6 OP1 C56 C55 C54 C53 R13 RL2 RD1 CN05 R44 R42 D19 +28V Q3 SB [24Vdc] R101 YELLOW R40 VR1 F6 T2 T1 CN02 C52 D14 R39 LFN N PINK Y2 Y1 Q2 COM N.C. N.O. NC IDC1 ID1 LBW N U3 LC1 F1 C13 F5 TP1 R43 R41 Q2 CN01 RL1 D13 F2 LC2 C51 F7 LC5 L1 N CN11 CN12 CN14 DAT CLK 24Vdc 24Vac 7Vdc L N The boiler must be compulsorily connected to an ambient thermostat; the C09660 remote control should at least be connected to allow the customer to remotely reset. Connect the ambient thermostat to the ID2/IDC2 terminals of the boiler PCB. If used with the C09660 remote control, follow the diagram shown to the side. The thermostat, switch and lamp contacts are supplied by low voltage. The thermostat contact must have zero voltage. Should the installer decide to fit a lockout warning light, its power supply must be 24VDC and its maximum power input must be < 25 ma. Cable section: contact and light 0.5 mm SB Lockout indicator light RS Reset button I/O ON-OFF switch TA Room thermostat [to be fitted by the installer] code HC GB ed.a

27 AQUAKOND CONDENSING BOILER Connecting SmartControl or SmartEASY/WEB remote control The SmartControl or SmartEASY/WEB must be connected by using the connector provided. Connect the power supply, making sure polarity is correct. Connect the Modbus RS485 network to its terminals, making sure polarity is correct. In case of several boilers, the remote control must be electrically connected to a single boiler and the D+ and D- terminals must be connected making sure polarity is correct; the network can be made both as a serial and star network. Note: For multiple boiler cascading management in a single zone, connect a single SmartControl or SmartEASY/WEB remote control. Use shielded cable having a section equal to or greater than 0.4 sq.mm. The correct address for each PCB must then be set up. Addresses must start from 1 to N without interruptions in the numbering sequence. The address of each PCB, if different from zero, is displayed on the LCD as Axx, where xx is the address. To program the SmartControl or SmartEASY/WEB, please read the operating manual supplied with the accessory. ID2-IDC2 contacts jumper Setting switch Heater address CPU-SMART #1 CPU-SMART #2 CPU-SMART #n +12V D+ D- +12V D+ D- +12V D+ D- The switches program the address by using a binary code; the corresponding values are listed below: 1 =1; 2 =2; 3 =4; 4 =8; 5 =16; 6 =32. Therefore, to program address 13, you must set to ON switches ; the matching address will be 8+4+1=13. When an address is changed, the PCB must be powered off and on again. SmartControl SmartEASY/WEB +12V D+ D Vdc 0 V Power supply connection MOD-BUS connection External probe(s) - optional (code G07202) ID2 digital input Remote ON/OFF contact V+ gnd A+ B- NTC I1 I2 I3 Probe Internal +VIN A+ B- M1 M2 ID1 ID2 NTC1 A NTC2 A AN3/ NTC A 27 code HC GB ed.a-1705

28 AQUAKOND CONDENSING BOILER 5.6. GAS Connections According to the current standards UNI-CIG, carry out the line for gas supply; for gas line connections, use CE certified components only. boilers are supplied with: Dual gas valve; Gas stabiliser; Gas tap; All components, except for the tap, are fitted inside the boiler; To complete the installation, as required by the current regulations, the following components must be fitted: Anti-vibration joint; Gas filter [without stabiliser]. Note: Avoid using threaded connections directly on the gas connection of the equipment. 032/034 installation diagram Included with the boiler Fitted directly on the boiler To be provided by the installer 050/070/100 installation diagram Ministerial Decree and the corresponding technical specifications ["R" collection ed. 2009] require, for boilers having burner heat output greater than 35 kw, the installation of the fuel cut-off valve with manual reset. Apen Group supplies 050/070 boilers with the well to insert the sensitive component and, on request, with C09073 kit. Note: if the fuel cut-off valve is installed in environments characterised by temperatures that may drop below or near 0 C, activate the antifreeze function through the CPU-SMART PCB (parameter D8=1) to prevent the sensitive component from activating when temperatures drop below zero. Fuel cut-off valve - optional - C09073 Included with the boiler Fitted directly on the boiler To be provided by the installer KEY 1 Main burner gas solenoid valve 2 Pressure stabiliser 3 Safety gas solenoid valve 4 Gas filter - (with small section, installed in the gas valve) code HC GB ed.a Gas tap (supplied by APEN GROUP) 6 Anti-vibration joint 7 Gas filter 8 Fuel cut-off valve 28

29 AQUAKOND CONDENSING BOILER 5.7. Connections to the Flue To make the fume exhaust, taking into account that boilers can condense, the following must be used: Aluminium with a thickness higher than or equal to 1.5 mm; Stainless steel with a thickness of at least 0.6 mm; steel must have a carbon content of maximum 0.2%. Use pipes equipped with the sealing gasket (suitable to withstand fume temperature) to prevent fumes from exiting the pipes. For 032, 034, 050 and 070 The external unit (boiler) is supplied with B23P fume exhaust, made of plastic material [polypropylene], white, composed of: rainproof protection for air intake; 90 bend Ø60; fume exhaust terminal Ø60 with a well for fume analysis. The boiler is provided with NTC probe on fume outlet protecting the polypropylene flue and with a thermal fuse on the exchanger. The boiler can discharge directly on the wall only if it is installed in place of another one equipped with exhaust on the wall. New systems require exhaust on the roof. The fume exhaust horizontal terminal should be positioned towards the front side of the boiler (see drawing to the side) to prevent fumes from condensing close to the wall, thereby wetting it. CERTIFIED pipes and terminals must be used. WARNING: install the protection on the boiler fume exhaust as shown below, otherwise, in case of rain, some water can get inside the equipment. Note: the presence of a fume analysis intake on the flue at a distance not greater than 1m from the boiler is mandatory. With PP Ø80 smooth fume exhaust, the maximum length is 8 m. For 100 The boiler is C63 certified; therefore, accessories compliant with current regulations must be used to manufacture the customer's intake and exhaust ducts. UNIT SET FOR G20 [NATURAL GAS] Fumes CO Model 2 Fumes flow temperature [ C] level rate [kg/h] Model UNIT SET FOR G31 [LPG] Fumes CO 2 temperature [ C] level Fumes flow rate [kg/h] Selection Guide The table below shows the pressure drops for the most used terminals and exhaust ducting. If the terminal is not directly connected to the heater and, therefore, extra routing is required, according to the length of the ducting, the diameter of the selected terminals, extensions and bends must be checked. After establishing the routing, the pressure drop must be calculated for each component by referring to the tables below according to the boiler used; each component has a different pressure drop value as the fume flow rate is different. Add together the pressure drops of the single components, checking that the result is not higher than the available value for the heater to be used. If a combustion air supply pipe is fitted, the pressure drops must be added to the fume exhaust pressure drops. If the sum of the pressure drops are higher than the available pressure, ducting with higher diameter must be used, rechecking the calculation; a pressure drop higher than the pressure available at the fume exhaust reduces the heater heat output. Component models Pressure available at the exhaust [Pa] Ø80 SMOOTH PIPE [l=1m] G BEND Ø80 WIDE RADIUS G BEND Ø80 WIDE RADIUS G Ø80 ROOF MOUNTED TERMINAL, WIND- PROOF EXHAUST ONLY Code TB23-08-VSW Ø80 HORIZONTAL UPTAKE ONLY TC00-08-HS0 Ø100 SMOOTH PIPE [l=1m] G BEND Ø100 WIDE RADIUS G BEND Ø100 WIDE RADIUS G Ø100 ROOF MOUNTED TERMINAL, WIND- PROOF EXHAUST ONLY TB23-10-VSW UPTAKE ONLY Ø100 HORIZONTAL TC00-10-HS0 ADAPTOR Ø80/ G ADAPTOR Ø100/ G code HC GB ed.a-1705 Lmax HC0047 C2 028

30 AQUAKOND CONDENSING BOILER The table shows the maximum lengths of the routing between the equipment and the terminal. If the duct routing requires the use of bends, their length must be subtracted from the available length: Bend Ø EqL 1.65 m Bend Ø EqL 0.80 m Bend Ø EqL 2.30 m Bend Ø EqL 1.03 m * Equivalent lengths valid for wide radius bends "C TYPE installation If a C type installation (sealed chamber) is required, proceed as follows: create a hole Ø80 (for 032, 034, 050 and 070) or Ø100 (for 100) on top of the boiler; close the air inlet inside the boiler by means of the corresponding accessory C09349 (for 032, 034, 050 and 070) or C09355 (for 100); install the splitter C09026-PL (for 032, 034, 050 and 070) and/or coaxial exhaust according to one s needs. Ask APEN GROUP SPA service centre for kits documentation. For 032, 034, 050 and 070: pierce the zone inside the largest ring C09349 HC0047 C2 032 HC0047 C2 027 Splitter C09026-PL For 100: pierce at the protrusion code HC GB ed.a

31 AQUAKOND CONDENSING BOILER Connection to the Condensate Drain boilers are condensing systems and, therefore, they are equipped with a connection for pipe Ø18 for condensate drain. Precautions Condensation water outflow takes place at temperatures lower than or equal to 50 C. For condensate drain, use pipes made of PVC and/or all the materials suitable for use with hot pipes: stainless steel, silicone pipes, etc. Do not use galvanised iron or copper pipes. Neutralising the condensation The condensation produced by the combustion of natural gas has an acid ph of On request, Apen Group can supply the kit (G14303) required to neutralise the condensation; the kit consists of: Plastic tank for the collection of condensation; Calcium carbonate. For more information, contact Apen Group Service centre. Protection from frost In case of outdoor installations in very cold places, with the risk of condensation freezing, we recommend to protect the condensation drain system. We recommend that the condensation collection system is located inside heated rooms, using the sealed trap. If the system is located outdoors, the pipe, after the water trap, must have an open type connection to make sure that any ice formed inside the external system does not prevent the condensation from being drained away. In any case, it is recommend that the longest pipe should be laid inside the heated room, for example by collecting the condensation flush to the floor with the down pipe located inside the room. Exhaust with Sealed fume trap The trap, code C09340 for 032, 034, 050, 070 and code C09385 for 100, is equipped with an internal float that prevents fume outflow also if water is missing. The C09385 trap is equipped with a detection electrode. To connect the trap to the condensation drain system, use PVC or silicone pipes. The pipe must never exceed the height of the lowest trap. Condensation collection pipe water tightness must be guaranteed. KIT G14903 to neutralise acid condensation neutral ph condensation output C09340 KIT 032, 034, 050 and 070 trap acid ph condensation input C09385 KIT 100 trap 31 code HC GB ed.a-1705

32 AQUAKOND CONDENSING BOILER 5.8. Hydraulic circuit filling 032/034 Boiler models differ from each other in that 032/034 models have already been refilled with water-glycol mix and are equipped with two cut-off taps on the hydraulic circuit, whereas 050/070/100 models have not been refilled. The type of glycol required is the same for all models. Upon delivery, 032/034 boilers have already been refilled with a suitable amount of 30% water-glycol mix, sufficient for proper hydraulic circuit filling of the following components: boiler, AB018/032/034 internal unit and flexible hoses up to 1 metre supplied with the equipment. Filling or water replenishment operations are the same for all models. FILLING: Make sure that connections between the internal and external units have been carried out correctly, respecting delivery and return direction; Make sure that automatic vent valves, placed on the circulator, are open. For 032/034 models: Gradually open "A cut-off taps (see figure to the side) located on the boiler delivery and return connections. For 050/070/100 models: After removing the cover from "C" filling tap, connect it, by means of a 1/2 flexible hose, to a pump for system test with reservoir filled with water and glycol. Load the mix until a pressure of approx. 2 bar is reached. For all models: Vent the pipe; When venting operation is over check, through the display, that the pressure inside the circuit is greater than 1bar; lower values will cause an F80 because of the activation of water minimum pressure switch [calibration 0.6bar]. Circulator Water return tap "A" 050/070/100 Filling tap "C" Water delivery tap "A" Water-glycol mix restoration In the event of water leakage and/or need to refill the hydraulic circuit, after having detected and solved any leakages, it is necessary to restore water-glycol mix by following the instructions described in For 050/070/100 models paragraph. GLYCOL For its boilers, APEN GROUP tested and recommends to use ALPHI 11 glycol by Fernox; the following KITS contain packs with different capacity: code capacity C litres C litres The use of glycol having different chemical composition shall invalidate the exchanger warranty. N.B. The indicated glycol percentages refer to the parts contained in the mix (water/glycol) and not in addition to water, e.g.: a 10-litre mix with 30% glycol is composed of 7 litres of water (70%) and 3 litres of glycol (30%). Note: Glycol percentages and limit temperatures indicated on page 17 have information purposes; we remind that the boiler is certified for use with external temperatures up to, and not exceeding, -15 C. Circulator Filling tap "C" code HC GB ed.a

33 AQUAKOND CONDENSING BOILER 6. SERVICING INSTRUCTIONS The first start-up must be carried out only by authorised service centres. The first start-up also includes a combustion analysis, which is compulsory. The equipment is certified in the EC and non-ec countries, according to the gas categories shown below Country Table - Gas Category Country Category Gas Pressure Gas Pressure AT II2H3B/P G20 20 mbar G30/G31 50 mbar BE <70kW I2E(S)B, I3P G20/G25 20/25 mbar G31 37 mbar CH I2H G20 20 mbar DE II2ELL3B/P G20/G25 20 mbar G30/G31 50 mbar DK, FI, GR, SE, NO II2H3B/P G20 20 mbar G30/G31 30 mbar ES, GB, IE, PT, SK II2H3P G20 20 mbar G31 37 mbar IT, CZ II2H3B/P G20 20 mbar G30/G31 30 mbar FR II2Esi3P G20/G25 20/25 mbar G31 37 mbar LU II2E3P G20/G25 20 mbar G31 37/50 mbar NL II2L3B/P G25 25 mbar G30/G31 50 mbar HU II2HS3B/P G20/G mbar G30/G31 30 mbar CY, MT I3B/P G30/G31 30 mbar EE, LT, SI, AL, MK II2H3B/P G20 20 mbar G30/G31 30 mbar LV I2H G20 20 mbar IS I3P G31 37 mbar BG, RO, HR, TR II2H3B/P G20 20 mbar G30/G31 30 mbar PL II2E3B/P G20 20 mbar G30/G31 37 mbar The following information is clearly printed on the equipment packaging: country of destination, gas category and equipment code, all translated into the language of the destination country. The code allows finding out the factory settings: Codes with no extension: 070IT if there is no extension, it means that the equipment has been tested and set to run with natural gas [G20] Codes with extension: the fourth letter indicates the type of gas the equipment has been set up for: 070FR-xxx0 0 indicates that the equipment has been tested and set up for natural gas [G20] 070MT-xxx1 1 indicates that the equipment has been tested and set up for LPG [G31] 070NL-xxx2 2 indicates that the equipment has been tested and set up for 'L' natural gas [G25] Another adhesive label, located near the fuel connection of the equipment, specifically indicates the type of gas and the supply pressure for which the equipment has been set up and tested. 33 code HC GB ed.a-1705

34 AQUAKOND CONDENSING BOILER 6.2. Gas Settings Table TYPE OF GAS G20 TYPE of MACHINE CATEGORY According to the country of destination - see previous table SUPPLY PRESSURE [mbar] 20 [min 17 - max 23] [for Hungary 25 mbar] Ø GAS ORIFICE PLATE [mm] CARBON DIOXIDE CO 2 [%] 9.1 ±0.2 [cat. H] ±0.2 [cat. E] [Qmax] 9.1±0.2 [Qmin] 8.8±0.2 GAS CONSUMPTION (15 C-1013mbar) [m 3 /h] TYPE OF GAS G20 - Switzerland TYPE of MACHINE CATEGORY According to the country of destination - see previous table SUPPLY PRESSURE [mbar] 20 [min 17 - max 23] Ø GAS ORIFICE PLATE [mm] CARBON DIOXIDE CO 2 [%] 8.6 [Qmax] 8.6±0.1 [Qmin] 8.4±0.1 GAS CONSUMPTION (15 C-1013mbar) [m 3 /h] TYPE OF GAS G25 [cat L-LL] TYPE of MACHINE CATEGORY According to the country of destination - see previous table SUPPLY PRESSURE [mbar] 25 [min 20 - max 30] - [for Germany 20 mbar] Ø GAS ORIFICE PLATE [mm] CARBON DIOXIDE CO 2 [%] 9.1 ±0.2 [Qmax] 9.1±0.2 [Qmin] 8.8±0.2 GAS CONSUMPTION (15 C-1013mbar) [m 3 /h] TYPE OF GAS G30** TYPE of MACHINE CATEGORY According to the country of destination - see previous table SUPPLY PRESSURE [mbar] 30 [min 25 - max 35] - 50 [min max 57.5] Ø GAS ORIFICE PLATE [mm] CARBON DIOXIDE CO 2 [%] 10.5 ± ±0.2 [Qmax] 11.4±0.1* [Qmin] 11.1±0.1 * GAS CONSUMPTION (15 C-1013mbar) [Kg/h] * Modification of the modulation PCB b1-b2 parameters (b1=154 e b2=530) required. See table on page 39 ** Gas category not valid for Switzerland TYPE OF GAS G31* TYPE of MACHINE CATEGORY According to the country of destination - see previous table SUPPLY PRESSURE [mbar] 30 [min 25 - max 35] - 37 [min 25 - max 45] - 50 [min max 57.5] Ø GAS ORIFICE PLATE [mm] CARBON DIOXIDE CO 2 [%] 9.6 ± ± ±0.2 [Qmax] 9.7±0.2 [Qmin] 9.5±0.2 GAS CONSUMPTION (15 C-1013mbar) [Kg/h] * Gas category not valid for Switzerland code HC GB ed.a

35 AQUAKOND CONDENSING BOILER 6.3. First start-up The boiler is supplied already set up and tested for the gas specified on the nameplate. Before turning on the boiler, check the following: make sure the gas being supplied matches the gas for which the boiler has been set up; check, with the pressure intake "IN" on the gas valve, that the valve input pressure corresponds to that required for the type of gas being used; check that the pressure inside the hydraulic circuit is between 1.2 and 1.6 bar; check that electrical connections correspond to those indicated in this manual or other wiring diagrams enclosed with the machine; check that efficient earthing connections have been completed, carried out as specified by current safety regulations; To turn on the boiler, follow the instructions below: provide voltage to the fan heater and, in case of fan heaters equipped with a speed regulator, set the switch to winter position and select maximum speed (5); make sure that an ambient thermostat or SmartControl is connected to the boiler; provide voltage to the boiler using the main switch after having ensured that the three-pin plug is connected to the boiler; when power voltage is provided to the boiler and ID2-IDC2 contact is closed on boiler PCB, the ignition cycle starts; if APEN or SmartControl or Smart EASY/WEB remote control is connected, refer to the relevant manual for the ignition cycle start procedure, then continue with the following instruction. Sometimes, when turned on for the first time, the burner cannot ignite because there is air in the gas pipe. This will lock out the boiler. You will need to reset the equipment and repeat the operation until it ignites (for unlocking operations use the buttons on boiler display) Analysis of combustion Wait until the boiler reaches the maximum output. Check again that the input pressure in the valve corresponds to the value required; adjust if necessary. Perform the combustion analysis to verify that the level of CO 2 corresponds the values contained in the table "GAS SETTINGS". If the measured value is different, turn the adjustment screw on the Venturi pipe. Loosening the screw will increase the CO 2 level, screwing it down will decrease the level. Position the boiler at minimum capacity, check that CO 2 is equal to or slightly lower than the value detected at maximum capacity (up to -0.3%). If the values do not match, screw or loosen the OFFSET screw respectively to increase or decrease the CO 2 level and repeat the procedure. Flue cleaning function The boiler can be forced to the maximum or minimum capacity with the flue cleaning function. This function can be carried out from the LCD display in REg menu with Hi (maximum heat output) or Lo (minimum heat output) function. OFFSET ADJUSTMENT GAS PRESSURE CONNECTOR ON BURNER (OUT) PRESSURE CONNECTOR FOR OFFSET ADJUSTMENT GAS INTAKE PRESSURE CON- NECTOR (IN) CO2 ADJUSTMENT VENTURI , 034, 050, 070 OFFSET ADJUSTMENT CO2 ADJUSTMENT VENTURI 35 code HC GB ed.a-1705

36 AQUAKOND CONDENSING BOILER 6.5. Conversion to LPG Conversion is strictly prohibited in some countries, such as Belgium, which do not allow the double gas category. The Kit is not supplied in countries where conversion is prohibited. Conversion from one type of gas to another can only be performed by authorised service centres. The unit is supplied already set for natural gas and with the kit for conversion to LPG, including: calibrated gas orifice plate; adhesive plate "equipment converted..." To convert the unit, follow these instructions: disconnect boiler from power supply; between the gas valve and the Venturi, replace the gas orifice plate fitted with the one supplied with the kit; restore power supply and set the boiler up for ignition; while the start-up electrode is sparking, make sure there are no gas leaks. When the burner is lit and working at maximum capacity, verify that: 1. the valve intake pressure corresponds to the value required for the type of gas that you are using; 2. the combustion analysis procedure is performed as described in paragraph 6.4; 3. the CO 2 level is within the values indicated for the type of gas used. If the detected value is different, change it using the adjustment screw: screwing it down decreases the CO 2 level, loosening it increases the level. 4. that the gas valve Venturi pipe connector does not leak. After converting and regulating the unit, replace the nameplate indicating "Equipment regulated for natural gas" with the one in the kit that indicates "Equipment converted...". Note: The boiler supplied to function with LPG is set up for G31 gas [Propane]. If the unit runs on G30 [Butane], it is necessary to verify and possibly adjust settings for CO 2 value as shown in table , 034, 050, 070 HC0047 C calibrated gas orifice plate Position the inserted orifice plate between the two cork gaskets 6.6. Replacing the Gas Valve If the gas valve must be replaced, it is required to proceed with an inspection and possibly calibrate the CO2 level. To carry out the calibration, refer to the paragraph concerning the combustion analysis 6.4 and to table 6.2. code HC GB ed.a

37 F 1 AQUAKOND CONDENSING BOILER 6.7. Replacing the modulation PCB When replacing the PCB, it is required to carry out a few checks and set a few parameters through the LCD control or SmartControl. Every equipment has a list of pre-programmed default values. It is advisable to update the list at every change performed on site in order to be able to reprogram a spare PCB if needed. * The following information only applies to boilers; for the other equipment using the same modulation PCB, refer to the relevant manual. Check the hardware configuration of the PCB Modify the address of the PCB with the switches, copying the exact configuration of the PCB that was just replaced. Programming the parameters The parameters that must be programmed are the following: d0, d1, and d5 - to identify the type of equipment; b1, b2, b3 - regulate the motor revolutions of the flue fan; S1 - enables the NTC1 hot water delivery probe; d5 - enables fumes control (not valid for 100); S5 - enables B2 probe for water pressure control; S6 - enables B3 probe for water flow rate control; H11 - enables Y1 output (PWM2) for water circulator modulation; b16 - ID5 input management (fault F35) concerning the TDOOR burner door thermostat; b17 - ID6 input management (fault F38) concerning the TFUMI fume thermal fuse. Programming the parameters - Operating mode Parameters can be modified from the LCD display on the machine or, alternatively, from SmartControl or SmartEASY/WEB. SmartControl or SmartEASY/WEB can be used to access all parameters [see tables on following pages]; parameters have passwords, which are issued by the APEN GROUP service centre. Please refer to SmartControl or SmartEASY/WEB manual for instructions for the procedure for access and modification of functional parameters. Please remember that all changes to parameters must be done with the burner OFF. VR1 40 R101 Q3 D19 R42 R44 RD1 RL2 R13 C56 C6 OP1 R16 R100 R103 D7 C46 R102 C45 C40 U14 D18 R12 C47 C42 C5 Q4 D21 R15 C44 C48 R104 R110 R108 U15 L1 C43 C41 D6 R105 R109 C49 R11 Q6 D20 Q5 C50 R31 R36 R38 C4 R14 LC6 R106 F9 R32 R37 R107 D5 C15 C16 C10 R53 R47 DZ1 U2 R18 D2 R33 R52 R48 C8 C9 R60 R20 R1 R4 R2 R5 R6 R55 C21 R62 R35 C11 R34 C12 D9 D1 R57 R61 U1 U4 R17 C1 J1 C14 R59 C23 D10 C20 C22 XT1 C7 R19 C17 R22 R27 R24 R29 R30 C18 D8 D12 RR1 SW1 C27 R72 R74 U9 R66 R23 R68 R73 Q1 R21 C25 F3 R26 D11 D17 C37 D16 C34 D15 C29 R28 R25 R45 R97 R87 R80 U5 R99 R93 R94 R95 R77 R78 R79 R56 R63 R70 R98 R84 R85 R88 R86 R81 R58 LC3 U8 C32 R50 C26 F4 C39 C31 C30 R54 R51 R49 U U12 U11 U10 R71 R67 R64 TS2 TS1 LC4 R92 R90 R91 C36 R82 R83 C33 R75 R76 C28 R69 R65 CN07 NTC3 NTC3 NTC2 NTC2 NTC1 NTC1 CN13 D- D+ +12V CN Programming with LCD Display The parameters can be displayed and changed only if they have been enabled by entering the password from Abi menu. To perform the change, the PCB address must be Ø, otherwise the PCB address must be changed. Abi (enabling change of setpoint) The Abi function has the following passwords: 001: enables the change of boiler setpoints under Set menu; 007: enables the change of boiler setpoints under Set menu and of boiler parameters under Par menu. Once the password is enabled, if no key is pressed for 10 minutes, the programme automatically returns to the machine status. Move using the menu arrows, select the parameter or setpoint to be displayed with ENTER, change the parameter by pressing the arrow keys ( to increase to decrease) until the desired value, then press and hold ENTER for at least 3 seconds; the display flashes to indicate that the value has been stored. Setpoint Menu For the meaning and the default values, please refer to the parameter table. H51 Not used H52 Not used H53 Not used St1 Modulation temperature St2 Not used H43 fumes control - see parameter table H44 fumes control - see parameter table H45 fumes control - see parameter table St5 Hydraulic circuit water pressure St6 Hydraulic circuit water flow rate Parameter Menu The Par submenu allows the access to "b" and "d" parameters: from b1 to b17 burner parameters from d0 to d9 boiler operation configuration. For the meaning and the default values, please refer to the parameter table. Besides "b" and "d" parameters, the following parameters can be changed: S1 Modulation probe enabling SP1 ST1 hysteresis (only if the probe is used as temperature limit) th1 Maximum temperature of the modulation probe, switches the burner off regardless of the other conditions set S2 Not used P2 Not used S5 Activates water circuit pressure control P5 Hysteresis on ST5 value, water pressure. S6 Activates water flow control P6 Hysteresis on ST6 value, water flow H11 Activates circulator speed electronic control H41 Hysteresis on fumes control. Y1 Y2 +28V CN05 ID2 IDC2 ID3 IDC4 ID4 IDC5 ID5 IDC6 ID6 CN08 PWM HALL +28V Switch SMARTCONTROL or SmartEASY/WEB CN03 37 code HC GB ed.a-1705

38 AQUAKOND CONDENSING BOILER I/O menu - Inputs outputs From I/O menu it is possible to display the values measured by the sensors. NTC1 Water delivery temperature NTC2 Not used (-10 is displayed) NTC3 Fumes temperature An1 0/10V input - if used PrH Water pressure in the circuit FLH water flow in the circuit (multiply by 10) rpu no. of FAN revolutions Pu2 circulator output % value (only if electronic) usa IOn Not used Measures the ionization current; 0 to 100 for currents 0 to 2 microamperes, 100 above 2 microamperes Flt Menu (Fault) It displays the fault event log; use the arrow keys to scroll the list of error codes and press ENTER to display the historical value of the selected fault. The first visible value, rst, is used to reset the fault event log; this operation must not be performed by the user but by the service centre. The reset operation can be carried out by changing the parameter to 1 and confirming it by pressing and holding ENTER for at least 3 seconds. After the reset, rst returns to 0. The list and the meaning of all faults is contained in FAULT table Fumes temperature control This function controls that, during flame modulation phase, the exhaust fumes temperature is near a curve of values set according to the heat output of the equipment. To activate it, it is necessary that d5=1; if the NTC3 probe is not present the PCB signals the fault F43, if d5=0 the PCB signals the fault F99 "configuration error". 100 does not include the NTC3 probe Exchanger maintenance Precautions for use boiler heat exchanger must be used in the following conditions: The fuel used must have a sulphur content according to the European standard, namely: maximum peak, for short periods, 150 mg/m 3, annual average lower than 30 mg/m 3 ; Combustion air must not contain chlorine, ammonia or alkalis; installation near swimming pools or laundries exposes the boiler to the effects of such agents; Water ph must be within the following limits: 8.2 < ph < 9.5; if the heating system includes aluminium parts, ph must be lower than 8.5; Water hardness, TA, must be within 5 F and 15 F; During the first start-up, the air in the system must be accurately removed; subsequently, do not close the automatic vent valves installed as standard on the boiler; The use of inhibitors to prevent the exchanger steel oxidation is absolutely necessary. The antifreeze recommended by APEN, FERNOX ALPHI 11 glycol, serves as inhibitor and preserves the exchanger from oxidation. Maintenance The experience gathered over time about the exchanger by APEN demonstrates that the annual maintenance of the exchanger would not be necessary, however the safety regulations require to perform the following checks on a yearly basis: Combustion chamber: If, during the annual inspection, some deposits inside the combustion chamber are observed, it is necessary to aspirate them; if the deposits are strongly attached, the pipes must be brushed. The use of sharp objects and the use of acid substances or alkalis is forbidden. Insulation: The insulation of the combustion chamber must be inspected on a yearly basis; if signs of deterioration are detected, it must be compulsorily replaced. In this case the condensation drain must be checked, because the damage causes the stagnation of the condensation inside the exchanger. Pressure switch activation (for 100 only): The pressure switch combined with 100 has an adjustable activation value set to 3 mbar. To make sure that the pressure switch electrical contact is not stuck on N.C. position: - open the pressure switch and move the wheel from 3 mbar to 1 mbar; - switch the boiler on normally and wait until the burner is switched off immediately and the F20 non-volatile safety lockout is signalled. - move the pressure switch wheel back to 3mbar. If these conditions do not occur (stuck contact), replace the pressure switch. Checks During annual maintenance, the following components must be checked: Burner Flange gasket If gaskets are damaged, they must be replaced. The silicone seal of burner flange must be compulsorily replaced every two years and whenever the combustion chamber is inspected. Burner No maintenance is required. If the burner surface is damaged, replace the burner Electrodes Check the position, the absence of alumina deposits and the integrity of the ceramic. In case of damage, replace the electrode and the relevant sealing gasket. Trap Clean the plastic trap on a yearly basis. Note: Use APEN original spare parts only. code HC GB ed.a

39 AQUAKOND CONDENSING BOILER 7. MODULATION PCB PARAMETERS All values of the parameters of the CPU-SMART PCB are shown for all boiler models. Parameters of CPU-SMART PCB version 7.02.xx PARAMETER DESCRIPTION password* d0 2 Flame modulation: 2=NTC1; 5=0 10Vdc; 7=Modbus (for PID setting with SmartControl or SmartEASY/WEB) d1 2 Type of equipment: 0=heater; 2=boiler; 5=PCH d2 1 Remote lockout signal output (Q1): 0=disabled; 1=enabled d3 sec 1 Circulator delay time ON (RL1): d4 sec 60 Circulator delay time OFF (RL1): (1=5seconds 60=300 seconds) d5 1 0 Fumes T control enabling (NTC3): 0=disabled; 1=enabled d6 sec 15 Interval between switching off and on (Off timer): d7 0 Fault counters reset: 0 1 d Boiler antifreeze enabling (NTC1): 0=disabled; 1=enabled d9 0 Dampers enabling: 0=disabled; Do Not Change b1 rpm Motor RPM MINIMUM value (PWM1): (1=10 RPM) b2 rpm Motor RPM MAXIMUM value (PWM1): (1=10RPM) b3 rpm Motor RPM START-UP value (PWM1): (1=10RPM) b4 2 HALL signal divider: 2 3 b5 rpm 50 Error F3x; no. of revolutions x10 (50=500rpm): b6 sec 20 Error F3x; error dwell time before fault F3x: b7 sec 0 Pre-cleaning time with maximum output: b8 sec 5 Flame stabilisation time (ignition): b9 sec Combustion chamber post-cleaning time (FAN ON): b10 % 5 Motor rpm % increase for each b11 seconds: b11 sec 2 Time interval for motor rpm increase: b12 % 30 Antifreeze mode FAN motor modulation % value: b13 pwm 65 Integral factor value (ki_pwm) for PWM1 calculation - (exa36):0 249 b14 pwm 45 Proportional factor value (kp_pwm) for PWM1 calculation - (exa37):0 249 b15 sec 60 Flow control time at start-up b ID5 input control: 0=input disabled; 1=enabled with N.C. input required; 2=enabled with N.O. input required b ID6 input control: 0=input disabled; 1=enabled with N.C. input required; 2=enabled with N.O. input required Modulation probe NTC1 control with limit d0=2 in case of d0=5 or 7 S1 1 NTC1 probe enabling: 0=disabled; 1=enabled 007 ST1 C 72 NTC1 setpoint: SP1 C 4 SP1 hysteresis: XD1 % 40 Proportional band from 4 to 100 TN1 sec 5 Integral time: AC1 1 0=modulation only; 1=ON/OFF if D0=5 or 7, modulation 0/10V or MODBUS TH1 C 82 Upper Temperature limit for fault F51 activation: autoreset if NTC1<TH1-15 C 007 Control 0/10 Vdc - d0=5 H51 0 Active only with D0=5 (0/10V) 0=modulation only; 1=modulation and ON/OFF H52 V 0.5 OFF voltage, burner switching off if H51=1: 0 10 H53 V 0.5 Voltage Delta with burner ignition ON H54 sec 5 Lower input dwell time: H55 sec 5 Upper input dwell time: * Parameter passwords can be viewed from LCD control inside the boiler 39 code HC GB ed.a-1705

40 AQUAKOND CONDENSING BOILER Parameters of CPU-SMART PCB version 7.02.xx PARAMETER DESCRIPTION password* Circulator output control H11 1 0=output disabled; 1=analogue output Y1 enabled (PWM2); 2=analogue output Y2 enabled (0 10Vdc) 007 H12 V 4.0 Y2 output minimum voltage: 0 10 H13 V 10.0 Y2 output maximum voltage: 0 10 H14 % 80 PWM2 minimum value: H15 % 100 PWM2 maximum value: H16 2 2=circulator modulation proportional to FAN (do not change) H17 1 0=PWM (Y1) or 0/10V (Y2) output according to "direct" logic; 1=PWM (Y1) or 0/10V (Y2) output according to "reverse" logic NTC2 control - not used S2 0 0=NTC2 disabled; 1=NTC2 enabled 007 ST2 C 5.0 NTC2 setpoint: P2 C 2.0 ST2 hysteresis: XD2 40 Neutral area, proportional modulation band divided by one hundred: TN2 sec 5 Integration time: ANTIFREEZE control - active with d8=1 STA C 2.0 Antifreeze setpoint: PA C 1.0 Antifreeze setpoint hysteresis: 0 10 FUMES TEMPERATURE control - active with d5=1 (for only) H41 C 5 Fumes temperature (NTC3); neutral band from H42 sec 5 Run time for fumes control cycle (15=30 seconds): H43 C 95 Fumes temperature at maximum capacity (Tmax with PT%=100): H44 C 85 Fumes temperature at medium capacity (Tmed with PT%=50): H45 C 75 Fumes temperature at minimum capacity (Tmin with PT%=0): H46 0 Fumes temperature operation: 0=modulation only - 1=burner OFF TH3 C 103 Temperature upper limit (autoreset if NTC3<TH3): Hydraulic circuit WATER PRESSURE control S5 3 1 Pressure probe B2 output enabling: 0=disabled; 1=enabled as ON/ OFF input; 2=enabled as analogue input without fault F83 autoreset; 3=enabled as analogue input with fault F83 autoreset 007 ST5 bar 0.60 B2 setpoint: P5 bar 0.30 ST5 hysteresis: XA5 V 1.18 B2 pressure probe signal input minimum voltage: XB5 V 2.72 B2 pressure probe signal input maximum voltage: YA5 bar 0.10 Pressure matching the B2 probe input minimum voltage YB5 bar 2.90 Pressure matching the B2 probe input maximum voltage TH5 V 2.50 Upper pressure limit for fault F82 activation: Hydraulic circuit WATER FLOW control S6 4 4 Flow sensor B3 output enabling: 0=disabled 1=enabled as ON/OFF input without F85 fault autoreset 2=enabled as ON/OFF input with F85 fault autoreset 3=enabled as pulsed input without F85 and F86 fault autoreset 4=enabled as pulsed input with F85 and F86 fault autoreset 007 ST6 From l/h Flowmeter setpoint - in l/h (x10) 001 P6 5 ST6 hysteresis: - in l/h (x10) 007 XA6 Hz B3 pressure probe signal input minimum frequency: XB6 Hz B3 pressure probe signal input maximum frequency: YA6 l/h Flow rate matching the B3 probe inlet minimum frequency YB6 l/h Flow rate matching the B3 probe inlet maximum frequency TR6 sec 2 Fault F85/F86 indication time delay (1=1second): During the ignition stage, the b15 value is used. code HC GB ed.a

41 AQUAKOND CONDENSING BOILER 8. ANALYSIS OF LOCKOUTS - FAULT The CPU-SMART manages two types of lockouts: - preventive, it warns the customer that the boiler requires maintenance - operational, it stops the boiler for safety or warranty reasons. Some operational faults require manual reset; others reset themselves when the problem that caused them is solved. FAULT DESCRIPTION CAUSE RESET F10 F11 F12 F13 F14 F15 Lockout caused by Flame - Caused by the ACF equipment Failure to ignite flame after 4 attempts Live and neutral reversed performed by the equipment. Earth wire not connected. Untimely flame Phase-phase connection without neutral. Start-up electrode failed or badly positioned Ignition failure; not visible. Detection electrode failed or badly positioned The count, displayed in the event log, Detection electrode that moves or disperses to the indicates whether the boiler has had earthing system when hot. problems with ignition Low CO2 value The ACF equipment does not accept the reset command from CPU-SMART Lack of communication between ACF equipment and CPU for more than 60 seconds the CPU-SMART PCB sent the ignition signal to the equipment which, after 300 seconds, has not lit the flame yet. ACF has finished its 5 reset attempts in the period of 15 minutes. Manual reset Wait for 15 minutes or use the equipment reset device ACF equipment or CPU-SMART PCB broken Auto-reset Open safety thermostat at start up Faulty ACF equipment Flame detachments immediately after the safety time (spark) Failure to detect the flame Check contact closing - TS Auto-reset F16 Generic equipment lockout Faulty ACF equipment Auto-reset Internal malfunction of ACF equipment F17 that does not accept reset command Faulty ACF equipment Auto-reset from CPU-SMART Lockouts caused by temperature (safety lockouts) F20 STB safety thermostat activation (for the whole range) PFLUE activation (for 100 only) Excess water temperature due to lack of circulation Safety thermostat broken or not connected Closed flue/fume exhaust clogging/flue pressure drop greater than the permitted value Manual reset of the CPU-SMART or TER (RE red LED on) F21 F30 F31 F32 F35 F38 Input ID1 open - causes: Heat exchanger thermal fuse activation - TF (for the whole range) INAIL maximum pressure switch activation - IP or IPMAX (for 050/070/100 only) INAIL minimum pressure switch activation - IPMIN (for 050/070 only) The water temperature inside the exchanger has exceeded the safety limit of the thermal fuse; disassemble the exchanger and check that there are no damages, otherwise replace it. The pressure inside water circuit has increased, thereby activating the IP MAX INAIL pressure switch to lock the boiler; make sure that taps on water circuit are open. The pressure inside water circuit has decreased, thereby activating the IP MIN INAIL pressure switch to lock the boiler; make sure that the circuit is not characterised by water leaks and restore minimum pressure. Empty, small or broken expansion reservoir. FAN lockout - burner fan - CPU-SMART manual reset - With the pressure switch, manually reset both maximum and the minimum pressure switch. Pressure switches are equipped with the reset key; press it to reset the pressure switch. Fan speed too low in start up phase - VAG Fan speed too high in start up phase Burner fan broken. Manual reset - VAG FAN electric cables wrongly connected or not Fan speed, during operation, outside connected Manual reset, auto-reset minimum and maximum set parameters after 5 min- - VAG utes Exchanger door temperature greater Exchanger door thermostat (TDOOR) activation than set temperature (for 100 only) Manual reset Fumes temperature greater than 102 C Fume thermal fuse (TFUMI) activation (for 100 only) Manual reset 41 code HC GB ed.a-1705

42 AQUAKOND CONDENSING BOILER FAULT DESCRIPTION CAUSE RESET F41 F43 F51 F53 F60 F75 F80 F81 F82 F85 F86 F90 F91 F95 F99 F00 NTC probes broken or missing NTC1 probe error, water delivery T NTC3 probe error, fumes temperature No signal from probe or broken probe Auto-reset (for only) The temperature of the water delivery probe NTC1>TH1 The temperature of fume probe NTC3>TH3 if H46=0 (for 032/034/050/070 only) Communication error between CPU- SMART PCB and Modbus, SmartControl network No voltage during operation cycle (excluding stand-by); the fault is not visible on remote control but only counted. No water pressure, water pressure PRH < ST5 - P5 INAIL minimum pressure switch activation - IPMIN (for 100 only) Preventive alarm, water pressure PRH < ST5 Preventive alarm, water pressure PRH > TH5 No water circulation, FLH value is equal to zero Water flow rate lower than minimum setpoint FLH < ST6 - P6 The temperature of fume probe NTC3 > TH3 if H46=1 Fault due to 30% reduction of maximum heat output, in order not to exceed fumes temperature value set in CPU- SMART PCB Wrong programming of fumes temperatures Wrong programming of CPU-SMART PCB parameters code HC GB ed.a-1705 Over-temperature Minimum heat output of the boiler over-sized compared to the heat output required by the environment. Check the TH1 parameter - water delivery setpoint. The fume exhaust flue might be clogged The gas flow rate might exceed the boiler adjustment parameters check the exchanger cleaning. Check Modbus communication ModBus network is disconnected The address of the PCB is wrong and/or not configured in the Modbus network No voltage 42 Auto-reset if NTC1< TH1-15 Auto-reset if NTC3 < TH3 Auto-reset No voltage during operation Auto-reset Pressure control and water circulation in the circuit If this happens frequently, check the presence of leakages in water circuit. - Auto-reset - Manual reset (for 100 only) Restore water pressure value of the hydraulic circuit (except for 100) Excessive pressure inside water circuit, check the hydraulic circuit load or the expansion reservoir (except for 100) Water circuit clogged, taps closed or circulator not operating Flowmeter not connected or faulty Auto-reset Check water circuit length and diameters Fumes temperature check (d5=1) (for 032/034/050/070 only) The fume exhaust flue might be clogged The gas flow rate might exceed the boiler adjustment parameters Check the exchanger cleaning The boiler is reducing the heat output as it exceeds the set fumes curve; check H43, H44 and H45 Check parameters H43, H44 and H45 Parameter configuration error Check: D5 (NTC3 fumes probe enabling) = 1 (for 032/034/050/070 only) S1 (NTC1 probe enabling) =1 S5 (B2 water pressure switch enabling PREX) = see parameter table S6 (B3 water flow enabling - FLUX) = 4 Internal malfunction of CPU-SMART PCB Internal malfunction of CPU-SMART Perform a manual reset of the PCB; replace the PCB CPU-SMART PCB if the problem persists Faults are displayed on LCD panel, without stopping the equipment Manual reset Auto-reset when fumes temperature value drops below the fumes curve Auto-reset when parameters H43, H44 and H45 are consistent. Auto-reset when D5, S1, S5 and S6 parameters are 0 Manual reset

43 AQUAKOND CONDENSING BOILER 9. WIRING DIAGRAMS Connection details are described in the installation chapter. boilers have the same wiring diagram and operating principle. Differences concern some points indicated in the notes below. IP 050/070/100 boilers have an additional protection located on water maximum pressure. The activation of this device causes error F21 and requires manual reset. STB Safety thermostat with automatic reset; the activation causes an error F20, detected by the PCB, and requires PCB manual reset by means of the reset key located on the ACF flame monitoring equipment. ON/OFF we remind that all boilers compulsorily require ambient thermostat connection. If SmartControl [G20800IT] or SmartEASY/WEB control is used, use jumpers between ID2/IDC2 terminals. All the controls mentioned operate as an ambient thermostat. Component key ACF Flame monitoring equipment ACC Start-up electrode IONO Detection electrode F5 4.0 AT fuse on the PCB (delay - 230V side) F6 2.5 AT fuse on the PCB (delay - 24V side) FLUX Water flowmeter IPMIN MIN INAIL pressure switch (050/070/100 only) IPMAX MAX INAIL pressure switch (050/070/100 only) KOND Condensation detection electrode (100 only) NTC1 Water delivery temperature probe NTC3 Fumes temperature probe (032/034/050/070 only) P Hydraulic circuit pump [Circulator] PFLUE Fume pressure switch (100 only) PREX Circuit minimum pressure control switch RE ACF equipment lockout signalling LED SB ACF equipment reset button TDOOR Burner door thermostat (100 only) TF Exchanger protection thermal fuse TFUMI Fume thermal fuse (100 only) TS Safety thermostat VAG Burner fan VG Gas solenoid valve 43 code HC GB ed.a-1705

44 AQUAKOND CONDENSING BOILER 44 code HC GB ed.a-1705 POWER SUPPLY 230 V - 50 HZ 230V VAG LF PE N 24Vdc HALL --- PWM 230V VAG LF N PE 24Vdc HALL --- PWM SONDA NTC FLUX 0-10V 24VDC -FLUX1 SONDA NTC PREX 5Vcc 24Vdc -PREX -IPMIN Gnd Y1 F N PE -P -ON/OFF -IPMAX rsd -TF 1 R20 F9 R56 C26 Q1 R8 CN15 R104 R22 R87 C49 F5 D6 C50 C32 R39 U15 C41 Q2 CN11 R48 U1 CN12 C28 R61 R24 U8 C21 F3 R3 R50 R27 F4 U2 R16 R1 U4 R29 CN04 C42 R44 R66 F6 R52 TP1 R83 R4 R73 R101 C54 C55 C18 R17 U9 R65 R2 R91 C35 R97 C6 OP1 L1 DZ1 C1 T2 D11 D16 C12 R90 C34 R103 F1 D7 R37 R7 R18 R74 CN13 D17 R5 C37 R99 C31 C2 SW1 R94 C52 R34 U3 F8 C56 R89 C14 R25 F2 R106 R77 R43 C27 R49 R10 R58 C40 C20 C8 Q5 R45 R62 RL2 C22 R64 D3 C23 CN01 LC1 R32 RL1 C51 U11 LC6 C11 R70 R41 R40 D9 D1 R35 R110 R42 R31 R59 R96 TS1 R38 D5 D20 Q3 R23 D2 R55 R26 CN02 D10 C29 R100 C15 C33 D13 R19 R78 R108 R102 R76 R79 D8 C43 TS2 C5 C10 R9 U14 LC5 LC2 C38 C17 Q6 VR1 CN08 C3 R71 R95 R72 R12 T1 C36 C53 R107 U5 D4 R82 XT1 C48 F7 R88 C30 R28 R14 C39 R63 R54 R11 U13 R53 C46 RR1 C16 C45 R109 R13 C44 CN06 LC3 J1 U10 R30 R57 R15 R21 R36 CN14 R98 R86 R60 C9 D14 D19 D12 R69 CN07 R84 C7 D15 D21 R93 RD1 C47 R105 R81 LC4 R47 R67 R92 R51 R68 Q4 R85 R75 CN05 C25 U12 CN03 C13 R6 R80 R33 C4 D18 LFN +5V B3 +5V B2 B1 NTC3 NTC3 N NTC2 NTC2 NTC1 NTC1 D- D+ +12V +28V HALL L1 PWM ID2 IDC2 ID3 IDC4 ID4 IDC5 ID5 IDC6 N ID6 +28V Y2 Y1 Q2 COM N.C. N.O. N N L 7Vdc 24Vac 24Vdc CLK DAT NC IDC1 ID1 LBW RE SB PE L N STB STB VG1 VG1 ACC IONO DAT CLK 24Vdc 24Vac 7Vdc Q1 -VG -TS NERO BLU MARRONE MARRONE BLU BLU NERO ARANCIONE ROSSO ROSSO ROSSO NERO ROSSO NERO ROSSO MARRONE NERO BLU ACC MARRONE IONO BLU MARRONE BLU BLU MARRONE ROSSO ROSSO ROSSO NERO GRIGIO BLU MARRONE NERO ROSSO ROSSO BLU MARRONE NERO GIALLO/VERDE 050/ /034 ARANCIONE MARRONE MARRONE /034/050/070 electric connection

45 R 42 R 44 R 13 C 6 R 16 R 12 C 5 R 15 R 11 C 4 R 14 R 18 C 8 R 20 R 17 C 7 R 19 R 25 R 26 R 28 C 13 R 37 R 64 R 65 R 67 C 10 C 9 R 71 R 69 R 47 R 48 C 44 C 43 R 53 R 52 R 60 C 21 R 62 R 61 C 23 C 22 C 17 R103 R100 R 72 R 66 R 73 C 25 R 45 R 56 R 58 C 27 C 48 C 49 R 74 R 68 R 55 R 57 C 14 C 20 R 80 R 81 L L R110 R109 R 87 R 88 R104 R105 R106 R107 R 6 R 5 R 2 R 97 R 98 F9 4 R 4 R 1 C 1 N F F8 R 3 C 3 R 10 R 8 C 2 R 9 R 7 AQUAKOND CONDENSING BOILER electric connection -TS -PFLUE RD BK + GR GR MARRONE - BW -VG BLU - BL IONO GRIGIO - GY KOND TRASF. ACC ACC RD PE JC IT -00Q STB STB RE VG1 VG1 IONO YG N1 L1 PE SB N 7Vdc 24Vac 24Vdc CLK DAT NERO - BK BLU - BL ROSSO - RD ROSSO - RD NERO - BK BLU - BL MARRONE - BW BLU - BL ROSSO - RD ROSSO - RD NERO - BK MARRONE - BW ARANCIONE - OR MARRONE - BW BLU - BL MARRONE - BW GIALLO/VERDE - YG CN14 DAT D13 R4 3 R4 1 Q2 RL1 F2 LC2 C51 F7 LC5 CN12 CN11 CN01 N L1 F5 TP 1 N.O. LC1 F1 U3 N D7 R40 Y2 +28V Q3 CN05 ID2 IDC2 ID3 IDC4 ID4 IDC5 ID5 IDC6 ID6 CN08 R23 R21 PWM D11 HALL CN03 C41 D6 D5 D9 D8 LC4 CN04 C42 RD1 F6 R3 3 SW1 Q1 C1 2 R3 6 R3 8 U2 DZ1 R3 4 R7 0 C1 1 1 R3 5 U8 ROSSO - RD ROSSO - RD -IPMAX NERO - BK NERO - BK -TF ROSSO - RD MARRONE - BW BLU - BL C2 6 F4 D20 R31 R32 TS1 TS2 D18 XT1 U14 C4 0 F3 R6 3 RR1 LC3 RL2 T2 T1 R4 9 C45 L1 C1 6 R5 0 CN13 U5 R5 1 U4 R5 4 U9 R5 9 C1 5 C50 R108 U15 U1 C3 9 C3 2 C3 1 C3 0 C2 8 C18 R8 3 rsd 230V OP1 R2 9 R2 4 R9 1 R2 7 R2 2 CN02 C55 R101 C56 CN06 D1 7 C3 7 D1 6 C3 4 D1 5 C2 9 R7 9 U10 R7 6 R8 6 R7 7 R7 8 Q6 Q5 J1 C3 3 VR1 C4 6 R1 02 C47 R7 5 D21 Q4 U11 R8 2 R3 0 R9 5 R8 4 R8 5 C3 6 D2 D12 D19 U12 R9 3 R9 4 R9 0 D1 D1 0 LC6 R9 9 R9 2 C3 8 U13 C3 5 CN07 D4 D3 R9 6 R8 9 C53 C54 CN15 +5V B3 +5V B2 B1 PWM --- HALL 24Vdc LF PE N 24VDC 0-10V -IPMIN CLK 24Vdc 24Vac 7Vdc N N.C. -ON/OFF -T FUMI -T DOOR R39 COM D14 Q2 C52 Y1 +28V +12V VAG D+ D- NTC1 NTC1 NTC2 NTC2 NTC3 NTC3 LFN N LBW ID1 IDC1 NC PE F N Y1 -P Gnd SONDA NTC FLUX -FLUX1 45 code HC GB ed.a-1705

46 AQUAKOND CONDENSING BOILER 10. SPARE PARTS C EXPANSION RESERVOIR C C C C C EXCHANGER UNIT C MAX PRESSURE SWITCH 1 3bar C MICROTHERMOSTAT 90 C NC 050/070/100 C05264 MIN PRESSURE SWITCH 1 3bar 050/070/100 C /070/100 INAIL THERMOMETER WITH WELL C08029 HYDROMETER 4bar 050/070/100 C08027 INAIL HYDROMETER TAP 050/070/100 C09730/C WATER DELIVERY TEM- PERATURE PROBE G /034/050/070 G GAS VALVE G G G G G GAS VALVE VENTURI G /034 G C C FUME FAN G12064 POWER SUPPLY PLUG C /034 C /070 C CIRCULATOR C /034/050/070 C FLOWMETER G10054 Burner fan PWM connector G10054 ModBus connector G10051 ON/OFF connector G10052 ALARM connector C09042 INAIL SAFETY VALVE 2.7bar 050/070/100 C /034/050/070 C CONDENSATE DRAIN TRAP OTHER COMPONENTS FOR 100 ONLY C09376 FUME PRESSURE SWITCH C09086 IGNITION TRANS- FORMER G CPU-SMART PCB C C FLAME MONITORING EQUIPMENT G04763 NTC1 connector G16790 DISPLAY PCB G Vdc connector G10053 Burner Fan Power Supply Connector code HC GB ed.a-1705 G Vac Electrical Power Supply Connector 46

47 AQUAKOND CONDENSING BOILER EXCHANGER UNIT C09235 NTC FUMES PROBE C09303 FUME EXHAUST GASKET C09260 FUME EXHAUST ADAPTOR Ø80 Ø60 C09304 CHAMBER BOTTOM GASKET C EXCHANGER UNIT C09438 IONISATION ELECTRODE C IONISATION ELECTRODE CABLE C09141 IONISATION ELECTRODE GASKET C09437 START-UP ELECTRODE C09344 START-UP ELECTRODE CABLE C09137 START-UP ELECTRODE GASKET C09037 FAN/GAS FLANGE GASKET C09257 START-UP ELECTRODE C09312 START-UP ELECTRODE GASKET C09254 START-UP ELECTRODE CABLE C09451 FUME EXHAUST GASKET C09056 THERMAL FUSE 102 C C09258 IONISATION ELECTRODE C09313 IONISATION ELECTRODE GASKET C09255 IONISATION ELECTRODE CABLE C09309 BURNER FLANGE INSULATION C09136 EXTERNAL GASKET BURNER FLANGE C09308 BURNER FLANGE GASKET C09158 CHAMBER BOTTOM GASKET C09452 BURNER FLANGE GASKET C09453 CORD BURNER GASKET C09136 EXT. GASKET BURNER FLANGE 47 code HC GB ed.a-1705