Coway CHP-671R/L, Руководство по обслуживанию, Страница: 45 / 74

Fault diagnosis
Coway co., Ltd 4-13
Function Explanation
1.
Compressor
control
function
• FND display control specifications according to cold water temperature are as
follows.
- ON/OFF control specifications according to the COOL segment's temperature
are as follows.
COOL Segment ON OFF
C3 5.7 °C (123.045 kΩ) 7.8 °C (111.344 kΩ)
C2 9.0 °C (105.224 kΩ) 11.5 °C (93.649 kΩ)
C1 Always ON
- Temperature detection range: 0 °C ~ 55 °C (163.0 kΩ ~ 15 kΩ)
2.
Cold water
temperature
sensor error
display feature
• Cold water temperature sensor OPEN
- FND's C3 flashes in cycles of 1 second ON / 1 second OFF. C1/C2 are off.
- Compressor output is OFF.
• Cold water temperature sensor short
- FND's C3 flashes in cycles of 1 second ON / 1 second OFF. C1/C2 are off.
- Compressor output is OFF.
• Cold water temperature sensor overcooling
- If the cold water temperature sensor detects 1 °C or less, the compressor stops
operating. C1/C2/C3 flash on the display.
• During cold water temperature sensor open or short, the associated action occurs
after a 1 second delay.
• If the cold water temperature sensor is operating normally, the FND display and
compressor operate according to water level and cold water temperature.
The compressor starts 5 minutes after the point at which it had stopped.
3.
Compressor,
heater
differential
control function
• If the compressor and heater operate at the same time, they must operate at
1 second intervals.