Hydraulic Connection Diagram; Low-Temperature Heating - Helios HygroBox KWL Series Installation And Operating Instructions Manual

16.5 Hydraulic connection diagram:

Supply/return line 55/45 °C

16.6 Low-temperature heating:

Supply line temperature of at least +30 °C!
In case of low temperature heating, an additional auxiliary heater battery must be installed at the air outlet downstream
of the humidification unit (see figure). In case of supply line temperatures below 36 °C, and very cold outdoor
temperatures, or an outlet temperature below 19 °C at the internal sensor, the humidification output will reduce as too
little evaporation energy is available.
KWL HB 250 with auxiliary heater battery KWL NHR 250
Auxiliary heater battery KWL NHR 250
Note: Dimensions for warm water and electric heater batteries see Chapter 14 "Dimensions / Design variants".
Air inlet
Return line
Supply line
Heating
system
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