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l in d ab | w e si m pli fy const r uct i on
Installation instructions
17.5 Pre-treatment function with geothermal coil
If a hydronic circuit with geothermal or ground water probes
is available, it is possible to feed a hydronic pre-treatment
coil, which can be used in both seasons.
A dedicated function for using the geothermal source is
available.
In winter, the coil valve is controlled to carry out the
antifreeze function. It opens if the exhaust tempera-ture falls
below 3°C and closes above 6°C. Depending on the available
water temperatures, the coil must be sized to ensure the
antifreeze function.
In summer, the coil valve is controlled to carry out the pre-
cooling function.
It opens when the outside temperature rises above 24°C.
There is a provisional closure mode if the intake
temperature is too cold, to ensure the ambient com-fort
conditions and a permanent closure when the outside
climate starts returning to winter conditions.
Pre-cooling, or geothermal water free-cooling, is
compatible with ventilation free-cooling and extends the
periods of use.
17.6 Summer mode
Summer mode is a strong air change cycle, which is
enabled when "Flush" parameter is switched on into "Par
Menu".
NOTE: Summer mode is performed 4 times a day,
except when it would imply high ventilation heat loss.
Fig. 70
17.7 Functions block screen "Func"
From the PAr Menu you can access the "Func" screen.
Using the TOUCH PAD you can select the function to be
inhibited from being used by the USER.
The functions that can be inhibited are:
• Party
• Holiday
• Manual
• AUTO
• Machine Shutdown ("OFF")
• Clock
• Weekly Programs
+
-
Lindab reserves the right to make changes without prior notice
2022-01-28
Press "Enter" to enable the inhibition of a specific
function, which is confirmed by the activation of the
padlock icon.
Press "M" 3 times to go back to the Main Screen.
In the User Menu, the functions inhibited by the
screen "Func" can no longer be selected.
Alongside there is a function block example (Party
mode).
Fig. 71
RHR-CF
43
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