Supplied By www.heating spares.co Tel. 0161 620 6677
Page 10
Page 11
SY
STEMA
TE
2000
1.3 SYSTEM DETAILS
Hot and Cold Water System
General
A schematic layout of the hot and cold water
services in a typical small dwelling is shown
below. SysteMate 2000 will operate at mains
pressures as low as 1 bar and as high as 5
bar although the recommended range is 2-3
bar. If the manifolds (available as an optional
extra) are being used the inlet pressure to the
manifold must be a minimum of 2 bar. It is also
important to check that all other equipment
and components in the hot and cold water
system are capable of accepting the mains
pressure available to the property. If the mains
pressure can rise above 5 bar or the maximum
working pressure of any item of equipment
or component to be fitted in the system, a
suitable pressure limiting (reducing) valve will
be required.
Note: Each SysteMate 2000 is fitted with a
strainer and flow regulator on the cold mains
supply connection. If the supply pressure is
less than 2 bar or if the manifolds (available
as an optional extra) are being used or if all
taps are provided with flow regulators the
flow regulator on the cold inlet should be
removed.
No check valve or similar device should be
fitted on the cold water supply branch to the
SysteMate 2000.
Because of the innovative method of hot water
production no scale reducer is required on the
branch to the appliance. However, to comply
with the Benchmark Guidance Note for Water
Treatment in Heating and Hot Water Systems
the installer should check the hardness level
of the water supply and if necessary fit a scale
reducer to provide protection to the whole of
the domestic water system.
The hot water flow rate from the SysteMate
2000 is directly related to the adequacy of the
cold water supply to the dwelling. This must
be capable of providing for those services,
which could be required to be supplied
simultaneously, and this maximum demand
should be calculated using procedures defined
in BS 6700.
If a water meter is fitted in the service pipe,
it should have a nominal rating to match the
maximum hot and cold water peak demands
calculated in accordance with BS 6700. This
could be up to 80ltr/min in some properties.
1.0 DESIGN
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Note: The diagram below shows the F & E cistern with a ballvalve and warning/
overflow pipe which can be fitted if required. However, the standard preferred
arrangement is for the cistern to be manually filled from a temporary hose connection
fitted with a double check valve.
Содержание SysteMate 125
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