Three stage charging (BufMid1Temp <> 999 AND BufMid2Temp <> 999 AND BufMid3Temp = 999)

The charging valve 1 switches on to the position „charge“ if all the following conditinos are true:

BufSupplyTemp <= OVHT-01 AND

BufSupplyTemp >= BufUpperTemp + CHG-01 AND

BufSupplyTemp > BufMid1Temp


The charging valve 1 switches off to the position „closed“ if one of the following conditions is true:

BufSupplyTemp < BufUpperTemp - CHG-02 OR

BufSupplyTemp < BufMid1Temp

BufUpperTemp >= OVHT-01


The charging valve 2 switches on to the position „charge“ if all the following conditinos are true:

BufSupplyTemp <= OVHT-02 AND

BufSupplyTemp >= BufMid1Temp+ CHG-01 AND

BufSupplyTemp > BufMid2Temp


The charging valve 2 switches off to the position „closed“ if one of the following conditions is true:

BufSupplyTemp < BufMid1Temp- CHG-02 OR

BufSupplyTemp < BufMid2Temp

BufMid1Temp >= OVHT-02


The charging valve 3 switches on to the position „charge“ if all the following conditinos are true:

BufSupplyTemp <= OVHT-03 AND

BufSupplyTemp >= BufMid2Temp + CHG-01 AND

BufSupplyTemp > BufLowerTemp(if connected <> 999)


The charging valve 3 switches off to the position „closed“ if one of the following conditions is true:

BufSupplyTemp < BufMid2Temp - CHG-02 OR

BufSupplyTemp < BufLowerTemp (if the buffer lower temperature if connected <>999)

BufMid2Temp >= OVHT-03


Table 4.   Parameter List

Description

Value Range

Default Value

Unit

CHG-01: temperature difference start charging

-10 … 50

5

K

CHG-02: temperature difference stop charging

-10 … 50

3

K

OVHT-01: maximum buffer upper temperature

0 ... 150

90

°C

OVHT-02: maximum buffer mid1 temperature

0 ... 150

87

°C

OVHT-03: maximum buffer mid 2 temperature

0 ... 150

84

°C