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Installation Commissioning Settings AccessoriesTroubleshooting
Display
Heat exchange
(in systems 4 and 8 only)
∆Ton heat exch.
Switch-on temperature difference heat exchange
Adjustment range: 1.0 ... 50.0 K
Factory setting: 6.0 K
∆Toff heat exch.
Switch-off temperature difference heat exchange
Adjustment range: 0.5 ... 49.5 K
Factory setting: 4.0 K
Tmax sink
Maximum temperature heat sink
Adjustment range: 30 ... 95 °C
Factory setting: 60 °C
Tmin source
Minimum temperature heat source
Adjustment range: 30 ... 95 °C
Factory setting: 45 °C
The heat exchange function can be used for transferring heat from a heat source
to a heat sink.
The allocated relay is energised when all switch-on conditions are fulfi lled:
• the temperature difference between the allocated sensors has exceeded the
switch-on temperature difference
• the temperature at the heat source sensor has exceeded the minimum temperature
• the temperature at the heat sink sensor has fallen below the maximum temperature
The hystereses for Tmax sink and Tmin source are fi xed values.
Blocking protection
(adjustable in the Installer menu)
Blocking protection
Blocking protection function
Selection: Yes, No
Factory setting: No