6
Stored water capacities
The minimum capacity of the cold storage cistern should be not less than
225 litres (50 gallons). The capacity of the hot cylinder must be capable of
meeting the anticipated demand.
Combination boiler/multipoint system
Dream DCV products are suitable for use with combination boiler systems.
The combination boiler MUST have a minimum rating of 24kW (80,000 Btu)
and be of the type fitted with a fully modulating gas valve. This is sufficient
to operate one outlet at a time.
If in any doubt, please contact the appliance manufacturer before
installation commences.
The cold supply can be taken from the nearest convenient mains supply and
the hot supply can be taken from the nearest hot water draw off point.
Account must be taken of the pressure drops that will occur when other draw
off points are used while the shower is in use.
Please refer to the typical system layout on page 7.
When fitted to combination boiler systems, Dream DCV shower valves have
been specifically designed to give optimum temperature control and stability
from fully modulating combination boilers and instantaneous gas water
heaters.
Balanced high pressure system
The cold water supply must be drawn from the same mains supply as that
to the hot water system (downstream of the cylinder manufacturer’s
pressure limiting valve, where supplied) and the hot supply from the nearest
convenient draw off point. Account must be taken of pressure drops that
may occur when other draw off points are used while the shower is in use.
Please refer to the typical system layout on page 8.
