General Requirements - Heatrae Sadia Megaflo Eco Solar Series Product Manual

General Requirements

Important: Please read and understand this product guide before installing the MEGAFLO Eco Solar water heater. Incorrect installation may
invalidate the guarantee. This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities,
or lack of knowledge and experience, unless they have been given supervision or instruction concerning the use of the appliance by a person
responsible for their safety. The MEGAFLO Eco Solar must be Installed (Section 2), Commissioned (Section 2) and Maintained (Section 3) by a
competent installer in accordance with Building Regulation G3 (England and Wales), Technical Standard P3 (Scotland) or Building Regulation P5
(Northern Ireland) and the Water Fitting Regulations (England and Wales) or Water Byelaws (Scotland). Following Installation and Commissioning,
the operation of the heater should be explained to the user (Section 4) and this product guide left with them for future reference.
Siting the MEGAFLO Eco (See Figure 1 below)
The MEGAFLO Eco Solar unit must be vertically floor mounted. It can be placed anywhere convenient provided the discharge pipe(s) from its safety
valves can be correctly installed. Areas that are subject to freezing must be avoided. Ensure that the floor is of sufficient strength to support the
"full" weight of the unit (refer to Tables 3 and 4 on page 9 for unit weights). Pipe runs should be kept as short as possible for maximum economy.
Access to associated controls, immersion heaters and indirect controls should be possible for servicing and maintenance of the system.
Please do not install valves or pipework (except discharge pipe) within 50mm (2") of the T&P relief valve to allow your insulation set to be fitted.
The insulation set is important to ensure heat and energy conservation. See page 16 for more information.
To aid installation, the MEGAFLO Eco Solar is provided with lifting points located in the base moulding and a lifting handle. The lifting handle
should be fully threaded onto the outlet boss before use. Once the MEGAFLO Eco Solar is suitably positioned the lifting handle should be removed
to allow connection of the outlet pipework. The weights of the units are noted in the Tables 3 and 4, (p 9).
Figure 1 - Schematic Installation Details
SECONDARY RETURN
TAPPING (IF REQUIRED)
AUXILIARY PRIMARY
RETURN
AUXILIARY PRIMARY
FLOW
ELEMENT/CONTROLS
HOUSING
SOLAR PRIMARY
RETURN
SOLAR PRIMARY
FLOW
SOLAR CONTROLS
BALANCED COLD WATER
CONNECTION (IF REQUIRED)
TO HOT OUTLETS
T&P VALVE
TUNDISH
HOUSING
3 BAR PRESSURE
REDUCING VALVE
STOP COCK (IF USED
IN THIS POSITION)
MAINS WATER
SUPPLY
8 BAR PRESSURE RELIEF VALVE
EXPANSION
VESSEL
DRAIN COCK
DISCHARGE PIPE
Unvented Hot Water Cylinder
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