STIEBEL ELTRON WWK 300 A - On the System; Safety Valve (on-site); Pressure Reducing Valve (on-site); Regular Valve Maintenance

9
WWK 300 E Kältekreis Schemata
Heizbetrieb
Ventil bestromt
Ventil stromlos = geschlossen
P
C
P
0
>
P
TC
V
Luft
T
KW
T
WW
V2 V1
Abtaubetrieb
V2
Ventil bestromt
Ventil stromlos = geschlossen
P
C
P
0
>
P
TC
T
KW
T
WW
V1
Operation with active defrost feature WWK 300 A and WWK 300 AH
Heating operation Defrost operation
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Fig. 4
Refrigerant circuit layout with passive defrost feature WWK 300 AP and WWK 300 AHP
Fig. 5
Valve - powered
Valve - powered
Valve - not powered = closed
Valve - not powered = closed
WWK 300 AP Kältekreis Schemata
P
C
!P
TC
V
Luft
T
KW
T
WW
P
0
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