Siemens KG39EAI43 - Checking stop valve

7.4 Checking stop valve
7.4.1 Checking stop valve for leaks
1. Check stop valve cooling pipes connections for refrigerant leakage.
2.
If refrigerant leakage is detected.
- Eliminate leakage.
3.
If there is no refrigerant leakage.
- Measure power consumption.→Page 53
7.4.2 Checking stop valve function
1. Actuate stop valve in the internal test program.
2.
If acoustic sound of stop valve switching is not heard.
1. Check electrical connections between the stop valve and electronic module.
2. Replace stop valve.
3. Perform the test run.
3.
If acoustic sound of stop valve switching is heard.
- Measure power consumption.→Page 53
7.4.3 Measuring stop valve power consumption
Required tools:
Energy cost measuring device VOLTCRAFT, Energy Logger 4000 [15000102]
1. Actuate the compressor in the internal test program.
2. Measure the power consumption.
3.
If power output > 20 W.
- Disconnect the stop valve from the power supply.
4.
If power output < 20 W.
- Check the suction pressure.→Page 53
7.4.4 Measuring suction pressure
1. Measure suction pressure.
2.
If suction pressure is near vacuum.
1. Replace dryer.
2. Refill refrigeration circuit.
3. Perform the test run.
3.
If suction pressure > 1 bar (compressor defective).
1. Replace compressor.
2. Perform the test run.
Test
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