Made with FlowPaper - Flipbook Maker
rev.no:04 27.09.2019 If you require any further assistance: Telephone: 01698 820533 Fax: 01698 825697 E-mail: info@electric-heatingcompany.co.uk or visit our website www.electric-heatingcompany.co.uk The Astro Range of Boilers the ultimate solution for central heating & hot water INSTALLATION & TECHNICAL MANUAL1.SAFETY 1.1 SYMBOL KEY 1.2 SAFETY PRECAUTIONS 1.3 GENERAL EXPLANATIONS 1.4 INSTRUCTIONS AND BUILDING REGULATIONS 1.5 C.O.S.H.H 1.6 PREPARATION 1.6.1 Load Check 1.6.2 Boiler Location 1.6.3 Central Heating Installation 2.INTRODUCTION 2.1 APPERANCE AND EXTERNAL DIMENSIONS 2.2 COMPONENTS OF THE BOILER 2.3 MAIN FEATURES OF THE BOILER 3.MOUNTING AND INSTALLATION 3.1 OPENING THE BOX 3.2 MOUNTING INSTRUCTIONS 3.3 MINIMUM SPACES FOR INSTALLATION 3.4 WALL MOUNTING 3.5 HEATING AND DHW SYSTEM INSTALLATION CONNECTIONS 3.5.1 BOILER INSTALLATION SCHEMATICS 3.5.2 CIRCULATION PUMP IMFORMATION 3.6 ELECTRICAL CONNECTIONS 3.6.1 Electricity Connection Precautions 3.6.2 Removing the Front Boiler Cover 3.6.3 Electricity Supply Connection 3.6.4 Electrical Connection Diagram 230V (Single Phase) 3.6.5 Electrical Connection Diagram 400V (3-phase) 3.7 MAIN PCB DIP SWITCHES 3.7.1 Switches 1 3.7.2 Switches 2 3.8 ROOM THERMOSTAT CONNECTION 3.9 ELECTRICITY CONNECTION PARAMETERS Page 1 Page 1 Page 1 Page 2 Page 2 Page 3 Page 3 Page 3 Page 3 Page 3 Page 3 Page 3 Page 4 Page 5 Page 6 Page 6 Page 6 Page 7 Page 7 Page 8/9 Page 10 Page 11 Page 12 Page 13 Page 14 Page 14 Page 14 Page 15 Page 16 Page 17 Page 18 Page 18 Page 18 Page 19 Page 19 CONTENT i5.USER INSTRUCTIONS 5.1 CONTROL PANEL 5.2 ERROR CODES 5.3 TROUBLE SHOOTING 6.PRODUCT SAFETY 6.1 BUILT-IN RCD DEVICE (SHORT CIRCUIT RELAY) 6.2 HEATING TANK FLOAT LEVEL SENSOR (H6) 6.3 LOW WATER PRESSURE 6.4 OVERHEAT LIMIT THERMOSTAT 6.5 SHORT CIRCUIT THERMOSTAT 6.6 FROST PROTECTION 6.7 DOMESTIC HOT WATER NTC SENSOR 6.8 CENTRAL HEATING NTC SENSOR 6.9 HIGH WATER PRESSURE PROTECTION 6.10 ANTI PUMP LOCKING 6.11 3-WAY VALVE ACTUATOR MOTOR SAFETY 6.12 AUTOMATIC BY-PASS 7.TECHNICAL TABLE 8.MAINTENANCE 9.GUARANTEE CONDITIONS 10.EXPLODED VIEW 10.1 MAIN HEAT EXCHANGER GROUP DETAIL 10.2 HYDROLIC GROUP DETAIL 10.3 RELAY BOARD GROUP DETAIL 10.4 EXPLODED VIEW PARTS LIST Page 20 Page 20 Page 21 Page 22 Page 22 Page 23 Page 24 Page 25 Page 25 Page 25 Page 25 Page 25 Page 25 Page 26 Page 26 Page 26 Page 26 Page 26 Page 26 Page 26 Page 27 Page 28 Page 28 Page 29 Page 30 Page 31 Page 32 Page 33 ii 4.COMMISSIONING 4.1 FILLING WATER TO THE SYSTEM 4.2 STARTING UP1 & & & & & & This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities or lack of experience and knowledge unless they have been given supervision or instruction concerning the use of the appliance by a person responsible for their safety. Children should be supervised to ensure that they do not play with the appliance. 1.SAFETY 1.1 SYMBOL KEY This symbol expresses the risk of serious personal injury or death. This symbol expresses the risks which can cause minor injury or harm to the environment and goods. 1.2 SAFETY PRECAUTIONS Isolate the Main Power Supply to the boiler before removing the cover. Failing to isolate the device could result in electric shock. Personal injury from Hot surfaces or Sharp edges within the boiler. Protection of Main Power Cables. A result of electric shock or a fire risk could be possible if power cables are damaged or incorrectly installed Do not store objects on top of the device. Injury resulting from falling objects from the device due to vibration. Damage to surrounding objects, people or pets resulting from falling objects. Internal damage to the device if objects fall into the unit. Do not Stand on the device. Personal injury as a result of falling or damaging boilers fixings and fixtures that may result in catastrophic failure. Installation. The installation must be performed by fully qualified engineers in accordance with current regulations at the time of installation. Cleaning. Make sure to isolate the main power supply to the boiler before cleaning. Clean the outer case with a damp cloth, Do not use chemical cleaners or abrasive compounds as this may damage the surface. 2 1.3 GENERAL EXPLANATION The Astro Electric Boiler range provides space heating and Instantaneous hot water for domestic or light commercial use. The installation must be performed in accordance with current IEE Wiring Regulations, Building Regulations, Water Fitting Regulations (England & Wales) or Water By-laws (Scotland) and all relevant British Standards. EHC will not be not responsible for damages caused from improper installation and incorrect use of the appliance. Make sure the boiler is operated as intended. Any use which does not comply with the boiler's intended purpose may cause serious injury, death or harm to the environment and the appliance. ATTENTION; Only Qualified Engineers & Approved Service Engineers are recommended for installation and service of the product. Unqualified personnel and the use of non standard parts can be dangerous and will invalidate the manufactures warranty. 1.4 INSTRUCTIONS and BUILDING REGULATIONS This appliance must be installed in accordance with the following instructions. The Local Building Regulations The Building Regulations The Building Standards, (Scotland-consolidated) Regulations. Local water bylaws & British Standarts - code of practice. BS EN 12828 Heating system in buildings design for water-based heating systems. BS EN 12831 Heating system in buildings method for calculation of the design heat load. BS EN 14336 Heating system in buildings installation and commissioning of water based heating systems. BS7671 Requirements for electrical installations. IEE Wiring Regulations. BS EN 13831 Closed expansion vessels with built-in diaphragm for installation in water. 1.5 C.O.S.H.H Materials used in the manufacture of this appliance are non-hazardous and no special precautions are required when fitting or servicing this appliance. 1.6 PREPARATION 1.6.1 Load Check A load check should be taken into consideration when installing high output boilers. 1.6.2 Boiler Location The boiler must be installed onto a wall that will provide an adequate fixing and within an area that is not subject to frost or damp conditions. 1.6.3 Central Heating Installation Detailed recommendations are given in BS EN 12828,BS6700 and CP 342-2 Pipes forming part of the useful heating surface should be insulated to prevent any potential heat loss or frost damage (BS 6700). Drain valves should be fitted at the lowest point of the system pipe work in an accessible position. Drain valves should be in accordance with BS 2879 and copper tube to BS EN 1057 is recommended. 2.INTRODUCTION 2.1 APPERANCE AND EXTERNAL DIMENSIONS 32.2 BOILER COMPONENTS 4 a.Main heat exchanger b.Heating elements c.Actuator Valve d.Flow manifold e.DHW temperature NTC sensor f.Pressure switch g.Pressure gauge h.Plate heat exchanger i.Circulation pump j.Return manifold k.3bar safety valve l.Electronic flow sensor m.Expansion vessel n.PCB Control board o.Cooling fan p.Electric terminal q.CH - NTC sensor r.Short-circuit thermostat s.Limit thermostat t.RCD device u.Cable gland fixing plate v.Cable gland w.Earth connection x.Float level sensor y.Manual air vent5 2.3 MAIN FEATURES OF THE BOILER EHC Fusion Astro electric combination boilers provide central heating by connecting to panel radiators or underfloor heating systems. The primary circuit is heated via the main heat exchanger within the boiler and circulated throughout the system by the smart modulating pump. Fusion Astro boilers provide instantaneous domestic hot water to supply sinks, wash hand basins & showers within the property. The DHW is supplied via the boilers plate heat exchanger. When there is a demand for DHW, the 3 - Way valve is activated firing the system to provide instant Hot Water to the outlets. In Winter mode, DHW supply is always prioritized. Note: Due to lower flow rates produced from electric combination boilers,we do not recommend lower outputs boilers to fill baths. We also recommend the use of low flow tap outlets that will in turn save water and energy. Flow rates are shown in the table on page 27. •EHC Fusion Astro electric combi boiler uses electricity as fuel. •The device is equipped with many safety functions to provide risk free operation. •Efficiency 100% •Eco-friendly, Zero emissions •Quiet operation Digital control system •Error code system •3 Bar Internal safety valve. • Pressure Gauge • Energy efficient ErP Smart pump. • S/Steel Plate DHW heat exchanger • Low pressure protection (min 0.7 bar) • Built-in RCD (short circuit relay) provides electrical protection. • Internal automatic by-pass system. • Volt Free Programmer / Thermostat connection. • NTC Electronic water temperature control system. • Overheat Limit Thermostat • Short-Circuit thermostat for increased protection. • Pump Protection -Anti- Seizure system will operate the pump every 24 hours to prevent it from sticking when not used for long periods. • Frost protection. • Boiler outputs: 12,15,18 & 24kWNext >