Solar 3C 3C382B, Installation, User And Service Manual

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4. General requirements
4.1. The Solar 3C domestic hot water cylinder MUST be installed by a competent person in accordance
with WRAS and section G3 of the current Building Regulations.
4.2. Important - It is important that the installer reads and understands these instructions, unpacks and
familiarises themselves with the equipment before commencing the installation. Failure to observe
these installation instructions could invalidate the warranty.
4.3. Water supply - The warranty requires that the water to be heated is wholesome and of drinking
water quality and that if water treatment equipment is installed, it must function correctly.
Where possible the unit should be fed via at least Ø22mm (mains water) supply pipe. It requires
a supply pressure of 1.0 bar with a flow rate of at least 10 Litres per minute as a minimum for it to
function. Even with these rates, flow from the outlets will be disappointing/poor if several outlets are
used simultaneously. Generally speaking, the higher the supply pressure, the better the system will
function. The cylinder control equipment is factory set to limit the system operating pressure to 3
bar. The maximum supply pressure in to the pressure-reducing valve is 10 bar.
4.4. Taps and fittings - All taps and fittings incorporated in the unvented system should have a rated
operating pressure of 7 bar or above.
4.5. Location – The unit is designed to be floor standing, vertically mounted, indoors, in a frost-free
environment. When choosing a suitable location for the cylinder, consideration should be given to
the routing of the discharge pipe to a convenient point and also the availability of an adequate
power supply for connecting the immersion heater(s). The cylinder may stand on any flat and level
surface without any special foundation preparations, provided that it is sufficiently robust to support
the full weight of the cylinder. (Refer to technical specifications for weights). The position of the
cylinder should be such that easy access is provided for servicing the controls and replacing the
immersion heater should the need arise. Generally, pipe runs should be made as short as possible
and lagged to prevent heat loss. All pipework connections are to meet and be installed to any/all
relevant standards at the time of installation.
4.6. Storage and handling – If the cylinder is not being installed immediately, it should remain in its
packaging with all pipe end protective caps in situ to prevent damage. We recommend that the
cylinder be transported to its installation position on a sack truck or similar with the outer packaging
in place.
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