Logamatic SC40 - Technical specifications are subject to change without prior notice.
59
Service level menu (for qualified heating engineers only)
7
7.5.9
Return boost cut-out temperature differential
Menu: Service > Settings > Reserve bypass cut-out temperature differential
When the temperature difference between the solar storage cylinder and the thermal system return
drops to the set figure, the return boost valve is closed.
The minimum difference from the cut-in temperature difference is 3 K ( °C).
7.5.10
Heat meter
Menu: Service > Settings > Heat meter
Switches the yield calculation function on or off. The heat quantity is calculated and totalled up by
means of a volumetric flow meter (1 pulse/litre) and the difference between the flow and return tem-
peratures. The heat usage for the current twenty-four hour period can also be viewed.
When a heat meter is used, the glycol content must be set.
7.5.11
Glycol content
Menu: Service > Settings > Glycol content
In order to obtain accurate readings from the heat meter, the glycol content of the solar fluid must
be specified.
Setting range
Default range setting
New setting
3 - 17 K (°C)
3 K (°C)
Tab. 22
Setting range
Default range setting
New setting
Yes/No
No
Tab. 23
Setting range
Default range setting
New setting
0 %, 30 %, 40 %,
45%, 50 %
50 %
Tab. 24