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Worcester Wave Manual de servicio Pagina 22

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The ISM1 enables the hot water system to take heat from
the solar panels when the sun is shining and then bring the
boiler back on when there is not enough sunshine available.
In this way, the user gets maximum benefi t from solar
heating while ensuring that hot water is always available.
Another major benefi t of this arrangement is that the end
user only needs one controller to control both the solar and
boiler systems, making the system much easier to use. The
in-built intelligence of the FR110 and FW100 ensure that
solar-related information is only displayed when the ISM1
is connected, to avoid confusion.
The ISM1 is compatible with Greenstar CDi Classic System
boilers providing the optional integral diverter valve is used
and has the potential to reduce energy consumption by 15%
compared to conventional systems.
Installation
The following components may be supplied by the unvented
domestic hot water cylinder manufacturers, please refer to
the installation instructions. Alternatively they are available
at plumber’s merchants.
•
High limit control
•
Solar return two port valve
•
Solar wiring centre.
ISM1 Intelligent Solar Module
Connection – low voltage section with BUS connection
Permissible cable length between the Heatronic 3 with
BUS capability and the ISM1:
Cable length Cross-section
≤ 80m 0.40mm
2
≤ 100m 0.50mm
2
≤ 150m 0.75mm
2
≤ 200m 1.00mm
2
≤ 300m 1.50mm
2
To avoid inductive interference, lay all BUS cables separately
to lines of 230V or 400V (minimum spacing 100mm).
Solar panel and cylinder sensors
Dedicated sensors for both the solar panel and the hot
water cylinder are supplied with ISM1.
When sensor leads are extended, apply the following lead
cross-sections:
Cable length Cross-section
≤ 20m 0.75mm
2
– 1.50mm
2
≤ 30m 1.00mm
2
– 1.50mm
2
≥ 30m 1.50mm
2
230V AC connection
Mains voltage should only be installed to the terminals
on the left of the ISM1 and under no circumstances be
connected to the BUS or sensor terminals.
The ISM1 is a specially designed interface that integrates a solar heating system with a solar-compatible weather or load
compensation unit such as the FW100 or FR110.
Features and benefi ts
•
All solar control via FR110 or FW100 controller
•
Only one control to explain to end user
•
Displays solar performance on FR110 or FW100
•
End user can check solar input
•
Clear colour coded plug-in connections
•
Installation ease
•
Solar optimisation
•
Maximum benefi t and effi ciency from solar installation.
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