Wolf FB363 Betriebsanleitung PDF herunterladen (Seite 37)

3062449_0309 37

Cylinder heating starts when the actual cylinder temperature

< set cylinder temperature - 5 K. The set ow temperature then

results from the set cylinder temperature + excess boiler water

temperature during cylinder heating.

MI 17 Boiler excess

temperature during

cylinder heating

MI 50 Test function

Parameter

MI 50 enables control over individual relays.

MI 50 = 1 ⇒ Control, mixer circuit pump relay MKP

MI 50 = 2 ⇒ Control, mixer motor relay "OPEN" MM

MI 50 = 3 ⇒ Control, mixer motor relay "CLOSE" MM

MI 50 = 4 ⇒ Control, output relay A1

Conguration

km 01 = 5

For raising the return temperature during central heating backup,

a three-way diverter valve is controlled to raise the heating return

temperature via a buffer cylinder that has been heated up.

When the KM is operated as part of the Wolf control system WRS,

the boilers are blocked when the start conditions have been met. If a

demand is issued by at least one heating circuit or one DHW cylinder,

the three-way diverter valve will be controlled, and the blocking

time set in parameter MI 18 starts (= time for burner blocking). The

burner will be enabled again after the blocking time has expired.

When the start condition has been met whilst the burner is already

enabled, it will be disabled for the set time.

Start condition: PF_ist (E1) > RLF_ist (E2) + dTEin (MI 16)

Stop condition: PF_ist (E1) < RLF_ist (E2) + dTAus (MI 15)

When setting a blocking time of 0 s (MI 18) the three-way diverter

valve will be controlled independent of a heat demand.

MI 18 Burner blocked in

case of return temperature

raising

Parameters / Function description

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Wolf FB363 Betriebsanleitung Seite 37