Fujitsu WGYA050DG6 Design & Technical Manual page 162

Locking time
The locking time enables the heat pump to reach
a stable operating state before the supplementary
source is allowed to switch on.
The supplementary source is released only when
the locking time has elapsed.
The locking time starts as soon as a valid flow
temperature setpoint is available.
Calculation of the release integral starts only when
the locking time has elapsed.
No consideration is given to the locking time, if
the heat pump malfunctions or is locked, or if the
supplementary source must end DHW charging.
QX2
TVxSch Actual value of common flow temperature
TVwSch Setpoint of common flow temperature
A Request
QX2 Release output QX2
T Locking time
Setting "- - -" can be used to deactivate the
function.
- (CS01 - 46) - - (CS01 - 46) -
Control system