Instructions
Operation data check sheet
(1) Condensing unit
Check the data of each code in the 7-segment display of the control PCB (PWB1).
7-segment have six digits, the three digits on the left shows code and the three digits on the right shows the data of the code.
Each code value increases by 1 for each press of SW7 of control PCB (PWB1) and by 10 for each press of SW8.
Code
C00
Compressor operation frequency
C02
Outdoor air temp.
C03
Gas cooler inlet temp.
C04
Gas cooler outlet temp.
C08
Discharge pipe temp.
C10
Under-dome temp.
C12
Power transistor temp.
C15
Liquid feed pipe temp.
C18
Current
C20
Medium pressure receiver inlet expansion valve
C21
Liquid bypass electronic expansion valve
C23
Subcool coil expansion valve
C24
Fan 1 actual speed
C25
Fan 2 actual speed
C26
PSH high pressure sensor
C27
PSL low pressure sensor
C28
PSM medium pressure sensor
C29
Inverter current 1
C31
Pressure switch
C32
Oil level switch
C46
Medium Pressure satuation temp
C50
Suction superheat degree
C51
Subcool coil superheat degree
C52
Under-dome superheat degree 1
Subcool Calculated By C46-C15
*1
Check the data in either below case 1 or 2
1. When the compressor is stopped and there is no pressure difference between medium pressure and low pressure
2. Compressor is runnning
*2
Check the data during compressor runnning
64 | AN405821998738en-000102 - 118A5495A
Display
Unit
Criteria
( : )
rps
40~104
°C
-20~50
°C
≤135
°C
≤60
°C
≤135
°C
≤85
°C
≤90
°C
-
A
≤19
Pulse
180~400
Pulse
10~470
Pulse
60~470
rpm
0~1000
rpm
0~1000
Bar
65~140
Bar
6~46
Bar
14~79
A
≤23
0
0
↑
1
left end
1
0
↑
*1
1
left end
°C
-
deg
≥5
*2
deg
≥10
deg
≥10
deg
≥1
© Danfoss | Climate Solutions | 2023.02 | LCA012A024
data display by time
( : )
( : )
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