Nibe SCU 10 - Protection Functions; Vacuum Pipe

Difference control function
Difference control function is used to transfer heat between
tanks regardless of solar charging. The temperature in both
tanks is measured and the control transfers heat from the
”hot tank” to the ”cold tank”, when possible according to
the set parameters.
P3
P1
T2
T1
TC = T3
TW= T4
Extra Funktion styr pump för att
värma upp annan tank
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P3
P1
TC = T3
T2
T1
TW= T4
Extrafunktionen styr pumpen för
att värma upp soltanken när
solinställningen inte är tillräcklig
Annat värmesystem med tank.
(Olja, pellets, ved…)
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Vacuum pipe
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Select the row “Tube collectors” and activate by pressing
.
႑
To use solar panel of the vacuum pipe type, press (+)to
select “yes”.
႑
This function is used to detect a temperature increase on
the sensor even when it is not mounted directly where
the temperature increase occurs. The function runs the
pump for 30 seconds every 30 minutes to detect whether
solar radiation is sufficient to start charging.
႑
This function only needs to be activated when the solar
panel sensor is not directly located on the solar panel
collector.
Protection functions
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Select the row “Service” and activate by pressing .
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Max temp (temp boil)
႑
Temperature level in the solar panel to activate the over-
heating protection. (Adjustable 100 °C to 180 °C with
default value 140 °C.)
Overheating protection for solar panel. The protection means
that the pump stops the circulation when the solar panel
temperature is above “Temp boil”.
Cooling (cooling coll)
႑
When the “Cooling coll.” function is activated it is pos-
sible to activate the function “Cool. tank start”.
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Cooling is used to protect the liquid in the solar panel and
works as follows: Pump P1 or P2 starts if the temperature in
solar panel (T1) or (T2) exceeds the “Cooling coll.” setting,
even if the set maximum temperature in the tank has been
reached. Circulation stops when the temperature in the solar
panel has dropped 10 °C. (Circulation stops if the temperat-
ure in the tank reaches 95 °C.)
Re-cooling
The pump is activated to cool the tank down through the
solar panel, if the temperature in the tank is above the set
maximum level and the temperature in the solar panel is 10
°C lower.
The pump stops when the temperature in the tank has
dropped to the set maximum level or the temperature differ-
ence between the tank and solar panel is less than 2 °C.
SCU 1014
For the Installer
Menu Settings