8.1 DHW 3way valve management
The DHW 3way valve is used in systems where DHW needs to be stored in the DHW tank. It is used switch the
flow of water between the system and the DHW tank loop.
The DHW tank temperature could be detected with a probe.
DHW 3way valve
DHW tank
M
Space Heating
HP unit
DHW tank temperature probe
DHW tank temperature probe
PCB(Terminal)
DHW
T.probe
7
8
DHW 3way valve
M
Neutral
N.C.
Phase
Signal
3-way
valve
50
44
51
52
mode
output
Parameters
Level
Parameter
Function description
Display & Input value
Remarks
Group Code
Default
min.
Max.
Unit
I
51
07
T erminal 7-8 : DHW tank temperature probe
0=disable
1=enable
0
0
1
-
I
51
50
T erminal 50-51-52 : DHW 3way valve
0=disable
1=enable
1
1
1
-
97
8. Domestic Hot Water Production
Summary of Contents for AEYC-0639U-CH
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