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Firmware V1.4
20.05.2021
34/113
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After 150 seconds have elapsed from the LT request, the calculation for the respective requested system part is
started. The following diagram should show the dependencies.
x_vl: Actual value flow temperature
x_rl: Actual value return temperature
w_vl: flow temperature setpoint
w_rl: return temperature setpoint
h_rl: hysteresis return temperature
max_vl: maximum flow temperature
max_rl: maximum return temperature
free: request available
! free: request not available
The internal power signal with which all heating instances are enabled is also influenced by external factors:
The defrost of the air heat pump - here the calculated output signal is reduced below the switch-on
threshold of the LWP and GCBP. This should ensure that the maximum amount of hot gas is available for
defrosting.
There is a communication problem with the
or the interconnection controller is not
ready for heat recovery. In this case, the calculated power signal is limited to the level of the “desuperheat
on" threshold.
These two criteria apply equally to HT and LT. If a fault occurs in the water circuit, only the calculated power
signal of the relevant heat exchanger is reduced to 0. The other heat exchanger can thus continue to operate.
There are the following heating instances:
Desuperheating
, where HT and LT each assess their calculated power signal separately.
The respective higher calculated power signal from HT and LT then results in the currently higher heating
instance:
Pressure boost
Gas cooler fan shutdown
GCBP
LWP
The pressure boost, GCBP and LWP heating instances can also be switched on with a delay. According to the
parameter, the increase of the calculated power signal is then suspended.
Содержание WRG 3010 E
Страница 70: ...Firmware V1 4 20 05 2021 70 113 7 1 Connections for 230 V AC top Basic Module SIOX Extension Module...
Страница 78: ...Firmware V1 4 20 05 2021 78 113 7 2 Connections for Protective Extra Low Voltage bottom...
Страница 84: ...Firmware V1 4 20 05 2021 84 113 7 3 Connections for Interfaces on the side Basic Module SIOX Extension Module...
Страница 103: ...Firmware V1 4 20 05 2021 103 113...