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VRF 50/60Hz
2.2.3 System check button
On pressing Spot check button, the parameters listed in Table 5-2.3 will be displayed in sequence.
Table 5-2.3: 28/36/42/48/56 model system check
No.
0
Normal display
1
Operating mode
2
Operating fan speed level
3
Total capacity requirement of indoor units
4
Total capacity requirement for the modified ODU
5
T3 Condenser
6
T4 Outdoor ambient
7
TP discharge
8
TF invert module
9
TL refrigerant cooling tube temperature (°C)
10
EXVA position
11
Actual current (A)
12
Inverter compressor current (A)
13
Actual voltage (V)
14
DC bus voltage (V)
15
Indoor heat exchanger pipe (T2/T2B) average temperature (°C)
16
Total number of IDUs
17
Number of Operating IDUs
18
Model
19
System address
20
Priority mode
21
Version of the program
22
Most recent error or protection code
23
Display "--"
Notes:
1. Display compressor frequency when system is running and display the quantity of indoor unit which communicate with outdoor unit when system is standby.
2. Operating mode: 0 – standby mode; 2 – cooling mode; 3 – heating mode; 4 – forced cooling.
3. Fan speed: 0 – fan stop; 1~8 – speed increase sequentially; 8 – the maximum fan speed.
4. If it is more than one hundred, it will be only display the hundreds' digit and the tens' digit;(80 model is TP, 36-56 model is T5).
5.
0: First ON priority;1: Cooling priority; 2: Automatic selection of priority mode;3: Heating only; 4: Cooling only;5: Heating priority
6.
If there is no malfunction or protection code, it will display "nn".
2.2.4 Digital display output
Table 5-2.8: Digital display output in different operating states
Outdoor unit state
Standby
Normal operation
Error or protection
System check
42
Parameters displayed on DSP
temperature(°C)
temperature(°C)
temperature(°C)
Temperature(°C)
Parameters displayed on DSP
The number of indoor units in communication with the outdoor unit
Compressor frequency
Error or protection code
Refer to Table 5-2.3
Remarks
Refer to note 1
Refer to note 2
Refer to note 3
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Actual value
Actual value
Actual value(Refer to note 4)
Actual value
Actual value
Actual Value=Display value*8
Actual value
Actual value
Actual value
Actual value
Actual value
Actual value
Actual value
Actual value
Valid at 0~7
Refer to note 5
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Refer to note 6
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