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Installation Commissioning Settings AccessoriesTroubleshooting
Display
Interval
Adjustment range: 1 ... 20 s
Factory setting: 4 s
Note:
If the mixer option is activated, both relays are required for controlling the
mixer. The power supply of the pump must be carried out externally. The
pump is speed controlled via the PWM output.
Return preheating
(in systems 2 and 6 only)
The return preheating function can be used for transferring heat from a heat source
to the heating circuit return.
The relay R2 is energised when the following switch-on conditions are fulfi lled:
• The temperature difference between the RPH sensor (S2 or S3) and S4 has
exceeded the switch-on temperature difference.
• The temperature at the RPH sensor has exceeded Tmin ST RPH.
• The temperature at S4 has exceeded Tmin RPH.
Note:
In systems with fl oor heating, Tmin RPH may have to be set to 10 °C.
∆Ton RPH
Adjustment range: 1.0 ... 25.0 K
Factory setting: 6.0 K
∆Toff RPH
Adjustment range: 0.5 ... 24.5 K
Factory setting: 4.0 K
Tmin ST RPH
Adjustment range: 10 ... 80 °C
Factory setting: 60 °C
Tmin RPH
Adjustment range: 10 ... 80 °C
Factory setting: 30 °C
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