4
4. General requirements
4.1.
The
Quantum “Hot Spring
” domestic hot water cylinder
MUST
be installed by a
competent person in accordance with 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 be of drinking water
quality and that if water treatment equipment is installed, it must function correctly.
The unit, where possible should be fed via a 22 mm diameter supply pipe. It requires a supply
pressure of 1.5 bar with a flow rate of at least 20 litres per minute as a minimum for it to
function. Even with these rates, flow from the outlets will be disappointing 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 into the pressure-reducing valve is 12 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. (See
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.
4.6. Storage and handling –
If the cylinder is not being installed immediately, it should remain
in its carton with all pipe end protective caps in situ to to prevent damage. We recommend that
the cylinder be transported to its installation position on a sack truck or similar with the outer
carton in place.
4.7. Pipework connections
–
All Pipework connections to the cylinder
MUST
be made in
accordance with Fig 1.
