Mixed Water Temperature Control

The mixed water temperature is limited between the minimum mixed water temperature MWT-02 and the maximum mixed water temperature MWT-03.

Depending on the P-band MWT-05, the integral action time MWT-06 and the calculated water temperature setpoint, the control signal varies from 0...100% as shown in the next figure.

Fig. 6.   Mixed water temperature control

In order to allow an accurate measuring of the mixed water temperature, the heating circuit pump will start one minute (fixed time) before the internal temperature control is released.

Table 5.   Parameter List

Description

Value Range

Default Value

Unit

MWT-02: minimum mixed water temperature

0...150

0

°C

MWT-03: maximum mixed water temperature

0...150

82

°C

MWT-05: P-band MWT control

1...100

100

K

MWT-06: I-time MWT control

0...3600

24

sec