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Installation Cont.
Please note this valve must not be used for end of line service or as an
isolation valve. In order for the valve to function as intended water quality
should be maintained at all times (e.g. as per BSRIA BG50 or equivalent).
Flushing
Control valves, like the PICV, are sized to give good control over the system
flow, therefore have been designed with small convoluted flow paths. Even
when fully open these flow paths may not allow adequate water velocities for
flushing of the coil. In line with BSRIA recommendations, it is recommended
that a flushing point be located between the coil and the PICV. This allows
the coil to be flushed without the water passing through the PICV. As per the
Hook-Up Elite Prime range.
Set Position
The PICV set position can be established by
use of lookup table on page 5
•
Identify installed valve from marking
on side of body
•
Check flow rate required
•
Read across chart:
-
Valve = DN15 SF
-
Required flow rate = 0.15 l/sec
Set position = 6
To set the flow rate, using your hand, turn the dial to close the valve
(position 0), then re-open the valve by turning the dial anti-clockwise until
position 6 is reached. Please note at no point should any tools, such as
spanners, be used to set the dial.
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