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setting
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- 18DUT5.1.14
AutoFrequency curve heating5.1.23
AutoFrequency curve hot water
AutoFrequency curve cooling
NoCooling permitted5.11.X.1
Silent mode permitted
L3Compressor phase
Defrosting On/Off-controlled compressor
When EB 101 initiates defrosting, control is follows:
Defrosting to water heater
If there is insufficient energy in the heating system,
defrosting occurs to water heater.
Defrosting to water heater is performed in follow-
ing cases:
■
Return temperature BT3 is less than TankDefrostTemp
(see diagram below).
■
The temperature of BT12 is less than 10 °C.
■
The value on BT3 - BT12 is greater than MinFlow-
Threshold (see diagram below).
■
Heating is blocked.
If any of the following occurs for longer than 40
seconds, during defrosting to the system, defrosting
occurs to the water heater:
■
The temperature of BT12 is less than 10 °C.
■
BT3 - BT12 is greater than MinFlowThreshold.
If the value of BT3 is less than TankDefrostTemp
must be:
■
Hot water prioritised until TankDefrostTemp achieved,
i.e. QN10 is towards hot water and additional heat
(EB1) is used for TankDefrostTemp + 5 °C has been
reached.
After completed defrosting the compressor resumes
to meet the demands it made before defrosting.
Conditions for tank defrosting depending on the value for -BT3
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