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Related Manuals for Heatrae Sadia MegaLife HE Series
Summary of Contents for Heatrae Sadia MegaLife HE Series
- Page 1 36 00 5843 Iss 1...
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Page 2: Table Of Contents
Contents SECTION PAGE INTRODUCTION ................3 GENERAL REQUIREMENTS ............4 INSTALLATION - GENERAL ............5 INSTALLATION - DIRECT UNITS ..........8 INSTALLATION - INDIRECT UNITS ..........10 COMMISSIONING ............... 14 USER INSTRUCTIONS ..............15 MAINTENANCE ................16 FAULT FINDING & SERVICING ..........17 DIMENSIONS &... -
Page 3: Introduction
Introduction Congratulations on your purchase of a Heatrae Sadia MegaLife cistern fed vented water heater. The MegaLife is manufactured in the UK from top quality materials and meets all the latest relevant safety and constructional standards. The high grade Duplex stainless steel cylinder offers exceptional strength and corrosion resistance which is backed by a 25 year guarantee. -
Page 4: General Requirements
General Requirements IMPORTANT : PLEASE READ AND UNDERSTAND THESE INSTRUCTIONS BEFORE INSTALL- ING THE MEGALIFE WATER HEATER. INCORRECT INSTALLATION MAY INVALIDATE GUARANTEE. THE MEGALIFE MUST BE INSTALLED BY A COMPETENT INSTALLER IN ACCORDANCE WITH ALL RELEVANT REGUALTIONS AND CODES OF PRACTISE IN FORCE AT THE TIME OF INSTALLATION. -
Page 5: Installation - General
Installation - General 3.1 PIPE FITTINGS As all the pipes to the MegaLife are of stainless steel brazing or soldering is difficult, therefore use 22mm COMPRESSION FITTINGS when connecting to the MegaLife pipes. “Push fit” type fittings MUST NOT BE USED for direct connection to the MegaLife pipes, however they may be used elsewhere in the system if technically suitable. - Page 6 Diagram 1 - Schematic installation details CISTERN COLD TANK MAINS SUPPLY VENT PIPE STOP VALVE OUTLET/ VENT MEGALIFE HEATER INLET DRAIN...
- Page 7 3.6 SECONDARY CIRCULATION A 3/4” BSP female threaded boss is provided (supplied blanked with a 3/4” BSP plug and sealing washer) for the connection of a secondary circulation return pipe. Alternatively, if it is a requirement that the whole cylinder contents be circulated the secondary return can be teed into the cold feed pipe via a swept tee joint (available as an accessory, order code no.
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Page 8: Installation - Direct Units
The immersion heater should only be replaced with authorised Heatrae Sadia spare parts. The 170 litre and 210 litre direct models are supplied with two immersion heaters. If both immersion heaters are not required a boss can be plugged with the aid of an 1 3/4”... - Page 9 Diagram 3 - Immersion heater schematic wiring diagram...
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Page 10: Installation - Indirect Units
Installation - Indirect units 5.1 BOILER SELECTION The MegaLife Indirect models are suitable for use with most gas or oil fired boilers. The boiler used can either be a sealed system or open vented type. The maximum primary circuit pressure is 3.5 bar. - Page 11 5.5 IMMERSION HEATER The MegaLife indirect units are supplied with an immersion heater which can be used as an alternative heat source should the boiler supply need to be isolated from the MegaLife unit. Refer to Sections 4.1 to 4.4 and Diagram 3 for details of fitting, wiring and operation of the immersion heater. Diagram 4 - Indirect controls housing details...
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Page 14: Commissioning
Commissioning 6.1 FILLING THE MEGALIFE WITH WATER Ensure that all fittings and immersion heater(s) are correctly fitted and tightened. i) Open the highest hot tap in the system. ii) Open the mains cold water supply to the cold water feed cistern. iii) Open the service valve or stop valve fitted in the cold feed pipe to the unit. -
Page 15: User Instructions
User Instructions 7.1 TEMPERATURE CONTROL IMMERSION HEATER(S) A combined thermostat and thermal cut-out is provided for each immersion heater. The thermostat is factory set to give a water storage temperature of approx. 60 C, however it can be set to control between 10 C and 70 C. -
Page 16: Maintenance
Maintenance should be carried out by a competent person and any replacement parts used should be authorised Heatrae Sadia MegaLife spare parts. In hard water areas consideration should be given to periodically descaling the immersion heater elements. -
Page 17: Fault Finding & Servicing
9.1 IMPORTANT Servicing should only be carried by competent installers in the installation and maintenance of water heating systems. Any spare parts used MUST be authorised Heatrae Sadia parts. iii) Disconnect the electrical supply before removing any electrical equipment covers. - Page 18 Table 1 - Fault Finding Chart FAULT POSSIBLE CAUSE REMEDY No hot water flow 1. No water in cold feed 1. Check water supply to cold cistern feed cistern 2. Service valve in cold water 2. Turn on service valve feed pipe from cistern turned 3.
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Page 20: Dimensions & Specifications
Dimensions & Specifications Diagram 7 - Dimensions OUTLET SECONDARY RETURN PRIMARY RETURN IMMERSION INDIRECT HEATER(S) THERMAL CONTROLS INLET PRIMARY 530 DIA FLOW PLAN VIEW 22.5 33.75... - Page 21 Table 2 - Dimensions SIZE TYPE DIMENSIONS (mm) DIRECT INDIRECT 1064 1064 1190 1190 1448 1081 1448 1081 Table 3 - Direct units - Technical specifications SIZE UNIT WEIGHT (kg) HEAT UP TIMES (mins) EMPTY FULL LOWER (3kW) UPPER + UPPER LOWER (6kW) BOOST (3kW)
- Page 22 OUTLINE SPECIFICATIONS Maximum working head 40 metres (4 bar) Immersion heater rating (a.c. supply only) 3kW 240V 2.8kW 230V Maximum primary circuit pressure 3.5 bar Outer casing: White textured plastic coated corrosion proofed steel Water container: Duplex stainless steel (grade 1.4362 to EN10088). 100% pressure tested to 15 bar. Thermal insulation: HCFC/CFC free fire retardant expanded polyurethane foam.
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Page 23: Guarantee
Codes of Practice and Regulations in force at the time of installation. ii) It has not been modified in any way other than by Heatrae Sadia Heating Ltd. iii) It has only been used for the storage of potable water. -
Page 24: Contacts
Contacts ADDRESS Heatrae Sadia Heating Limited Hurricane Way Norwich Norfolk NR6 6EA SWITCHBOARD Tel: 01603 420100 LITERATURE Tel: 01603 420127 SALES Tel: 01603 420110 Fax: 01603 420149 E-mail: sales@heatraesadia.com SERVICE Tel: 01603 420330 Fax: 01603 420349 E-mail: service@heatraesadia.com SPECIFIER Tel:...