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3.16 Solar panels coupling function.
The boiler is set-up to receive pre-heated water from a system of
solar panels up to a maximum temperature of 65°C. In all cases, it
is always necessary to install a mixing vale on the hydraulic circuit
upstream from the boiler on the cold water inlet.
For good functioning of the boiler; the temperature
selected on the solar valve must be 5°C greater with
respect to the temperature selected on the boiler
control panel.
For correct use of the boiler in this condition, parameter P3 (DHW
thermostat) must be set at "1" and the parameter P9 (
) at a temperature sufficient to receive water
(DHW ignition delay)
from a storage tank situated upstream from the boiler. The greater
the distance from the storage tank, the longer the stand-by time
to be set. When these regulations have been performed, when
the boiler inlet water is at the same or greater temperature with
respect to that set by the DHW selector switch, the boiler does
not switch on.
44
Solar mode
3
b
1
3.17 Casing removal.
To facilitate boiler maintenance the casing can be completely
removed as follows (Fig. 38 / 39):
1 Unhook the decorative frame (a) from the relative lower
retainers.
2 Remove the decorative frame (a) from the casing (c).
3 Loosen the 2 front screws (b) that fix the casing on.
4 Loosen the 2 lower screws (d) that fix the casing on.
5 Pull the case towards yourself (c).
6 Push the case (c) upwards at the same time to release it from the
upper hooks.
Installation drawings key:
a
Unmistakeable component identification
1
Sequential identification of the operation to perform
2
b
3
a
c
38
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