Optimum Start

The type of optimization can be changed by adjusting setting PREH-01, minimum pre-heat time. For very small values of PREH-01, for example, zero minutes, only time variable pre-heat is active, because it is never possible to reach the setpoint in zero minutes regardless of maximum mixed water temperature. Large values of PREH-01, such as several hours, have the opposite effect. Large values will cause temperature variable pre-heat with moderate mixed water temperatures.

Table 37.   Parameter List

Description

Value Range

Default Value

Unit

PREH-01: minimum pre-heat time

0…1440

120

min