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THERM CONNECT magna
08
WOLF run around coil systems
The main menu contains all other data points and options. The keys on the display can be used to navigate between
the individual menus. In this way, all temperatures, air quantities and control signals can be called up via the indi-
vidual submenus.
08.03 Control functions
08.03.01 Brine mass flow
• External enable On
• External power signal ( 0-10V DC ) from the superordinate temperature control sequence
• The system starts up to the minimum frequency. The valve closes as long as no external power signal (
0-10V DC) is present.
• The setpoint of the recirculating water-glycol quantity is calculated depending on the ext. power signal, the
maximum water quantity and the actual air quantity.
• The actual volume flow is controlled in the internal control sequences valve and speed control of the recir-
culation water pump via the frequency converter.
• External release Off
• The system stops
Periodic pump run:
To prevent the pump from getting stuck, even if there is no demand from the control system, a periodic pump run is
performed once a week. In this case, the pump runs for 10 minutes at 50% power demand
Frost protection control:
The integrated frost protection control is factory set to the limit value -1°C. Experience has shown that this value is
sufficient to prevent icing of the register and to operate the heat recovery as efficiently as possible.
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