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Related Manuals for Heatrae Sadia Megalife 100E
Summary of Contents for Heatrae Sadia Megalife 100E
- Page 1 Megalife Vented Cistern Fed Water Heater Installation manual SOLAR DIRECT INDIRECT...
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Page 2: Table Of Contents
1: Introduction Thank you for 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 and is backed by a 25 year cylinder guarantee. - Page 3 G3 Requirements (extracts taken from G3 regulations) A hot water system, including any cistern or other vessel that supplies water to or receives expansion water from a hot water system, shall be designed, constructed and installed so as to resist the effects temperature and pressure that may occur either in normal use or in the event of such malfunctions as may reasonably be anticipated, and must be adequately supported.
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Page 4: General Requirements
2: General Requirements IMPORTANT : PLEASE READ AND UNDERSTAND THESE INSTRUCTIONS BEFORE INSTALLING THE MEGALIFE WATER HEATER. INCORRECT INSTALLATION MAY INVALIDATE YOUR GUARANTEE. THIS APPLIANCE CAN BE USED BY CHILDREN AGED FROM 8 YEARS AND ABOVE AND PERSONS WITH REDUCED PHYSICAL SENSORY OR MENTAL CAPABILITIES OR LACK OF EXPERIENCE AND KNOWLEDGE IF THEY HAVE BEEN GIVEN SUPERVISORY OR INSTRUCTION CONCERNING USE OF THE APPLIANCE IN A SAFE WAY AND UNDERSTAND THE HAZARDS INVOLVED. -
Page 5: Installation - General
3: Installation - General 3.1 Pipe Fittings All pipe connections to the Megalife are made via 22mm compression fittings directly to the unit (nuts and olives supplied). The fittings are also threaded 3/4” BSP male parallel should threaded connections be required. 3.2 Cold Water Supply A 22mm cold water supply is recommended from the cold water feed cistern. - Page 6 Fig. 02: Typical Vented Installation - Schematic COLD VENT PIPE MAINS SUPPLY OVERFLOW PIPE CISTERN TANK Stop Valve COLD OUTLET/VENT (HOT) COLD INLET WATER SUPPLY...
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Page 7: Installation - Direct Units
100L model. Each immersion heater is rated 3kW at 240V (2.8kW at 230V) If both immersion heaters are not required a boss can be plugged with the aid of a blanking plug available from Heatrae Sadia (order Heatrae Sadia part no. 95 605 881). 4.2 Wiring (see Fig. 03, below) All electrical wiring should be carried out by a competent electrician and be in accordance with the latest I.E.E. -
Page 8: Installation - Indirect Units
5: Installation - Indirect Units 5.1 Boiler Selection The Megalife indirect models are suitable for use with most gas, oil or electric boilers. The boiler used can either be a sealed system or open vented type. The maximum primary circuit pressure is 3.5 bar. If an open vented type boiler is used it must be fed from a separate boiler feed and expansion cistern, it MUST NOT be fed from the Megalife cold water feed cistern. - Page 9 Fig: 04 - Electrical connection (indirect schematic) and temperature adjustment Element Connections Indirect control 1.5mm2 3 Core wiring HOFR sheathed cable THERMAL CUT-OUT RESET BUTTON TEMPERATURE ADJUSTING SPINDLE SPINDLE POSITIONS = MINIMUM TEMP 10ºC = MAXIMUM TEMP 72ºC = APPROX 60 °C ROTATE SPINDLE CLOCKWISE FOR TEMPERATURE INCREASE AND COUNTER CLOCKWISE FOR TEMPERATURE DECREASE...
- Page 10 Fig: 05. Schematic Wiring Diagram - Basic 2 x 2 port valve system Cylinder terminal block 1 2 3 Zone valve (HTG) Room stat Zone valve (DHW) Br Bl 1 3 2 Br Bl (Supply) 3 4 5 6 7 8 9 10 Junction box 1 2 3 4 5 6 7 8 9 10 Programmer...
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Page 11: Commissioning
6: Installation - Commissioning 6.1 Filling The Unit With Water • Ensure that all fittings and immersion heater(s) are correctly fitted and tightened. • Open the highest hot tap in the system. • Open the mains cold water supply to the cold water feed cistern. •... -
Page 12: User Instructions
7: Installation - User Instructions 7.1 Temperature Control Immersion Heaters 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 72 C. -
Page 13: 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. To do this the Megalife unit will need to be drained, 8.2 and 8.3 below detail how to drain the unit and remove the immersion... -
Page 14: Fault Finding & Servicing
Servicing should only be carried out by competent installers in the installation and maintenance of water heating syatems. Any spare parts used MUST be authorised Heatrae Sadia parts. iii) Disconnect the electrical supply before removing any electrical equipment covers. iv) NEVER bypass any thermal controls or operate system without the necessary safety controls. - Page 15 Megalife water heater and its associated controls MUST be carried out by a competent installer for water heating systems. In case of doubt contact the Heatrae Sadia Service Department (see back page). Table 02: Fault Finding...
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Page 16: Dimensions & Specifications
10: Dimensions and Specifications Fig: 09. Dimensions Hot Outlet Primary Flow Cold Inlet Primary Return Table 03: Dimensions Type Model Dimensions (mm) Primary Flow Coil Rating Heat-up Hot Water (ltrs/min @80°C Reference (kW) Time (mins) Capacity (ltrs) +/- 2°C) (volume of water drawn off >40°C) Indirect 100 B... - Page 17 Table 04: Unit weights Nominal Weight of Weight Model Type Capacity unit full of unit Reference (litres) (Kg) (Kg) Indirect 100 B 120 B 150 B 170 B 210 B Direct 100 E 120 E 150 E 170 E 210 E Table 05 - Standing Heat Loss Standing heat losses (based on an ambient air temperature of 20°C and a stored water temperature of 65°C)
- Page 18 Outline Specifications Maximum working head 40 metres (4 bar) Immersion heater rating (a.c. supply only) 3kW @ 240V ~ 50Hz 2.8kW @ 230V ~ 50Hz Maximum primary circuit pressure 0.3MPa (3 bar) Rated pressure 0.2MPa (2.0 bar) Pressure drop across coils 0.02MPa(0.2bar) Outer casing: White textured plastic coated corrosion proofed steel...
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Page 19: Guarantee
11.1 Guarantee Terms Heatrae Sadia guarantee the Megalife immersion heater for a period of two years from the date of purchase, with the exception of damage due to scaling. Electrical parts and thermal controls are guaranteed for a period of two years, from the date of purchase. -
Page 20: Contacts
After Sales Service T: 0344 871 1535 E: heatraesadiaservice@heateam.co.uk www.heatraesadia.com Heatrae Sadia, Hurricane Way, Norwich, Norfolk, NR6 6EA, United Kingdom SPARES STOCKISTS: Advanced Water Company Ltd Unit D5 Enterprise Way Vale Park, Evesham Worcs, WR11 1GS T: 01386 760066 F: 01386 760077...