7.2.4 Buffer tank temperature probe
If using the Buffer tank temperature probe and it is enabled, the compressor and water pump turns ON/OFF based
on water temperature measured by the Buffer tank temperature probe. The functions of “Backup heater” and the
“External heat source (EHS)” will be referred to the Buffer tank temperature probe, if enabled by dedicated
parameter.
Par4200 (Main water pump operation) shall be the following combination corresponding to Par5111, Buffer tank
temperature probe;
Par5111=0 (Buffer tank temperature probe disable) →Par4200=0 or 2
Par5111=1 (Buffer tank temperature probe enable) →Par4200= 0 or 1 or 2
Par2161 and Par2162 (Buffer tank set point) shall be set higher in Heating or lower in Cooling than set points of
Zone1 and Zone2.
Buffer tank temperature probe
PCB(Terminal)
Buffer tank
BUFFER
T.probe
11
12
Parameters
Level
Parameter
Function description
Display & Input value
Remarks
Group Code
Default
min.
Max.
Unit
I
51
11
T erminal 11-12 : Buffer tank temperature probe
0=disable
1=enable
0
0
1
-
To be set to
the following
combinations
Par5111=0
→Par4200= 0 or 2
Par5111=1
→Par4200= 0 or1 or 2
I
42
00
T ype of configuration of Main water pump
0=always ON
1=ON/OFF based on Buffer tank temperature
2=ON/OFF based on Sniffing cycles
0
0
2
-
I
21
41
Hysteresis of water set point in Heating and DHW
8.0
0.5
10.0
0.5°C
I
21
42
Hysteresis of water set point in Cooling
8.0
0.5
10.0
0.5°C
I
21
61
Buffer tank set point for Heating
45.0
23.0
60.0
0.5°C
I
21
62
Buffer tank set point for Cooling
7.0
7.0
23.0
0.5°C
58
7. Unit Management
Содержание AEYC-0639U-CH
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