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We reserve the right to make technical changes.
83052300eUK © ait-deutschland GmbH
Example: 2 heat pumps used only for heating
ZWE i
TA
TRL
ext
EVU
ZUP
A
E
2
HUP
ZUP
Example: 2 heat pumps for heating mode, 1 heat pump is responsible for domestic water heating
ZWE 1
TA
TRL
ext
EVU
TBW
BUP
EVU
ZUP
ZWE 1/2
TDI
A
B
2
HUP
ZUP
TBW = Domestic hot water temperature sensor
ZWE 1 = Second heat generator 1
TA = External sensor
TRL
ext
= External return ow sensor
EVU = Release signal electric suppl.
BUP = Domestic hot water pump
ZUP = Additional circulation pump
HUP = Heating circulation pump
ZWE 1/2
TDI
= Second heat generator 1 oder 2 (only possible for “Thermal disinfection”)
1
Hub oder switch with 4 ports: (RJ-45, 10 Base-T / 100 Base-Tx)
2
Patch cable RJ-45 (up to 20m)
A Heat pump Master (in this case only heating)
B Heat pump Slave 1 (heating and domestic hot water)
C Heat pump Slave 2 (in this case only heating)
D Heat pump Slave 3 (in this case only heating)
E Heat pump Slave 1 (only heating)
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