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PRODUCT SPECIFICATION (1)
Outlet / Terminal Fittings (Taps, Etc.)
The Megaflo eco SystemReady SB can be used in conjunction with most types of terminal fittings. It is
advantageous in many mixer showers to have balanced hot and cold water supplies, in these instances the
balanced cold water supply should be teed off the supply to the Megaflo eco SystemReady SB immediately after
the 3 bar pressure reducing valve (See Figure 6, page 15). Branches to cold drinking outlets should be taken
before the valve.
Outlets situated higher than the Megaflo eco SystemReady SB unit will give outlet pressures lower than that at
the heater, a 10m height difference will result in a 0.1 MPa (1 bar) pressure reduction at the outlet fitting.
NOTE: Accessories should have a rated operating pressure of at least 0.8 MPa (8 bar).
Limitations
The Megaflo eco SystemReady SB unvented water heater should not be used in any of the following instances:
• Solid fuel boilers or any other boiler in which the energy input is not under effective thermostatic control unless
additional and appropriate safety measures are installed.
• Gravity circulation primaries.
• Steam heating plant unless additional and appropriate safety devices are installed.
• Ascending spray type bidets or any other Class 5 back syphonage risk requiring that a Type AA, AB, AD or AG
air gap be employed.
• Water supplies that have either inadequate pressure or where the supply may be intermittent.
• Situations where it is not possible to safely pipe away any discharge from the safety valves.
• Areas where the water consistently contains a high proportion of solids, e.g. suspended matter that could block
the strainer, unless adequate filtration can be ensured.
• The water supply must be of wholesome water quality (Fluid Category 1 as defined by the Water Supply
Regulations 1999)
• The installation must be carried out in accordance with the relevant requirements of:
• The appropriate Building Regulations: Either The Building Regulations (England), The Building Regulations
(Scotland) or Building Regulations (Northern Ireland).
• The Water Fittings Regulations (England and Wales) or Water Byelaws (Scotland).
Water Supply
Bear in mind that the mains water supply to the property will be supplying both the hot and cold water
requirements simultaneously. It is recommended that the maximum water demand be assessed and the water
supply checked to ensure this demand can be met.
NOTE: A high mains water pressure will not always guarantee high flow rates.
Wherever possible the main supply pipe should be in 22mm. The minimum mains water supply requirements
should be 0.15 MPa (1.5 bar) working pressure and 20 litres per minute flowrate.
At these values outlet flowrates may be poor if several outlets are used simultaneously, the higher the available
pressure and flowrate the better the system performance will be.
The Megaflo eco SystemReady SB has an operating pressure of 3 bar which is controlled by the 3 bar pressure
reducing valve. The 3 Bar pressure reducing valve can be connected to a maximum mains supply pressure of 1.6
MPa (16 bar). .
The Megaflo eco SystemReady SB is to be used for the storage of wholesome water (max. 250mg/l chloride).
Warning: Do not switch on if there is a posibility that the water in the heater is frozen.
Electrical Supply
WARNING: THIS APPLIANCE MUST BE EARTHED. IT IS SUITABLE FOR A.C. SUPPLY ONLY. ELECTRICAL
INSTALLATION MUST BE CARRIED OUT BY A COMPETENT ELECTRICIAN AND BE IN ACCORDANCE WITH THE
LATEST I.E.E. WIRING REGULATIONS.
ENSURE THE ELECTRICAL SUPPLY IS SWITCHED OFF BEFORE MAKING ANY CONNECTIONS TO THE
MEGAFLO ECO SystemReady SB
The Environment
This product is made from many recyclable materials, therefore at the end of its useful life it should be disposed of
at a Local Authority Recycling Centre in order to realise the full environmental benefits. Insulation is by means of
an approved HCFC/CFC free polyurethane foam.
