Midea SMK-60/CGN8, Руководство по обслуживанию

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M‐Thermal Split
201909 37
Hydronic system SW4 check button
Button SW4 is used to check the parameters of the hydronic system. Refer to Table 4‐2.1. 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 4‐2.5: SW4 system check
Number Parameters displayed on digital display Remarks
1 Mode 0: off; 2: cooling; 3: heating; 5: DHW.
2 Capacity Requirements Actual value = value displayed
3 Capacity Requirements (Correct) Actual value = value displayed
4 T1: Backup electric heater exchanger water outlet temperature

When no decimal point is displayed:
Temperature is ≥ ‐9°C, Actual value = value displayed


When decimal point is displayed between the two digits:
Temperature is ≤ ‐10°C, Actual value = value displayed x ‐10
Example: “1.2” indicates ‐12°C
5 T1B: Leaving water temperature of region 2
6
T1S: Target leaving water temperature of region 1 calculated
from climate‐related curves (°C)
Actual value = value displayed
7
T1S2: Target leaving water temperature of region 2 calculated
from climate‐related curves (°C)
Actual value = value displayed
8 Ta: Room temperature (°C) Actual value = value displayed (If Ta is used)
9
T5
:
DHW tank temperature (°C)

When no decimal point is displayed:
Temperature is ≥ ‐9°C, Actual value = value displayed


When decimal point is displayed between the two digits:
Temperature is ≤ ‐10°C, Actual value = value displayed x ‐10
Example: “1.2” indicates ‐12°C
10
T2
:
Water side heat exchanger refrigerant inlet (liquid pipe)
temperature
11
T2B
:
Water side heat exchanger refrigerant outlet (gas pipe)
temperature
12
Tw_out: Water side heat exchanger water outlet temperature
(°C)
13 Tw_in: Water side heat exchanger water inlet temperature (°C)
14
T4
:
Outdoor ambient temperature (°C)
15 Current (Reserved) ‐‐
16 Current (Reserved) ‐‐
17 Last failure
“‐‐” is displayed if no error or protection events have occurred
since start‐up
18 Last second failure
“‐‐” is displayed if no error or protection events have occurred
since start‐up
19 Last third failure
“‐‐” is displayed if no error or protection events have occurred
since start‐up
20 Software version Version number
21 ‐‐
Digital Display Output
Table 4‐2.6: 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 4‐2.4 Refer to Table 4‐2.5
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