44
201703
Hydronic system SW4 check button
2.3.2
Button SW4 is used to check the parameters of the hydronic system. Refer to Table 4-2.10. First, press Button SW4 for 3
seconds and the first parameter (operating mode) will be displayed. Then, on each subsequent press, the next parameter
is displayed.
Table 4-2.10:
SW4 system check
Number
Parameters displayed on digital display
Remarks
1
Operating mode
0: off; 2: cooling; 3: heating; 5: DHW.
2
Output requirement before correction (kW)
Actual value = value displayed
3
Corrected output requirement (kW)
Actual value = value displayed
4
Hydronic box leaving water temperature (°C)
Actual value = value displayed
5
Auxiliary heating source leaving water temperature (°C)
Actual value = value displayed
6
Target leaving water temperature calculated from climate-related curves (°C)
Actual value = value displayed
7
Room temperature (°C)
Actual value = value displayed
8
DHW tank temperature (°C)
Actual value = value displayed
9
Heating mode: Water side heat exchanger refrigerant inlet temperature (°C)
Cooling mode: Water side heat exchanger refrigerant outlet temperature (°C)
Actual value = value displayed
10
Heating mode: Water side heat exchanger refrigerant outlet temperature (°C)
Cooling mode: Water side heat exchanger refrigerant inlet temperature (°C)
Actual value = value displayed
11
Water side heat exchanger water outlet temperature (°C)
Actual value = value displayed
12
Water side heat exchanger water inlet temperature (°C)
Actual value = value displayed
13
Outdoor ambient temperature (°C)
When no decimal point is displayed:
y
Temperature is ≥ -9°C
y
Actual value = value displayed
When decimal point is displayed between
the two digits:
y
Temperature is ≤ -10°C
y
Actual value = value displayed x -10
y
Example: “1.2” indicates -12°C
14
Backup electric heater first element current (A)
Actual value = value displayed
15
Backup electric heater second element current (A)
Actual value = value displayed
16
Most recent code
“--” is displayed if no error or protection events
have occurred since start-up
17
Error or protection code previous to most recent code
“--” is displayed if no error or protection events
have occurred since start-up
18
Error or protection code previous to 17
“--” is displayed if no error or protection events
have occurred since start-up
19
Hydronic box main PCB software version
20
----
Digital Display Output
2.3.3
Table 4-2.11: Digital display output in different operating states
M-Thermal Split system state
Parameters displayed on outdoor
unit main PCB DSP1
Parameters displayed on hydronic
box main PCB DSP1
On standby
0
0
Normal operation
Running speed of the compressor in
rotations per second
Leaving water temperature (°C)
Error or protection
Error or protection code
Error or protection code
System check
Refer to Table 4-2.9
Refer to Table 4-2.10
MUNDOCLIMA AEROTHERM V17 - BIBLOC
