97
Data
measuring
1. Connecting methods of device:
Insert one end of data line into the terminal of main PCB CN31
with a two-core terminal, one end connects with 485 device or
Gangda device, the other end of the device connects computer.
Position of inserting test device (CN31)
It is normal if there is high pressure frequency
limitation or high discharging temperature
frequency limitation when outdoor ambient
temperature is high and all the indoor units are
operating.
2. The data that can acquire through device
Outdoor unit: The frequency of outdoor unit compressor /Outdoor
fan speed/Opening of outdoor electronic expansion valve/ High
pressure of outdoor unit/Corresponding saturation temperature
of outdoor unit’s high pressure/Low pressure of outdoor unit/
Corresponding saturation temperature of outdoor unit’s low
pressure/Discharging temperature/Suction temperature/Oil
temperature/ Temperature of condenser outlet pipe/Ambient
temperature/Temperature of defrosting sensor/Starting of all kinds
of solenoid valve
Indoor unit: Temperatures of gas pipe and liquid pipe, opening
angle of electronic expansion valve /Display of failure
3. Test device can display failures of the unit during operation,
moreover it can realize a function of storing data in real time, and
the test data can be stored in computer.
4. Prepare a report according to the test data and submit it to
user.
Confirmation
of the data
The confirmation of running data/Timing and recording of the
measurement
After the measurement is begun, check the system pressure
through detection software. Generally, the cooling low pressure
is about 7.5kg and the heating high pressure is about 28kg under
rated cooling and heating modes. Then observe if operation
under each parameter is normal.
There is a picture about cooling operating parameters’ data in
the right column, after operating about half hour, the unit remains
stable.
Check if there is a blockage in capillary during operation, if any,
replace it.
Check if there is contact between refrigerant piping and capillary
tube, if any, deal with it.
Check if wires of sensor (such as wiring, pressure sensor, etc.)
are too tight, or contact with vibrating pipe, if so, deal with it.
Check if the value of sensor is correct.
Summary of Contents for AWAU-YDV1010-H13
Page 1: ...SYJS 03 2017 REV A Edition 2017 03 Service Manual Flow Logic III...
Page 56: ...54 7 Operation range...
Page 102: ...100 Power module driver board 0151800090B and 0151800090...
Page 103: ...101 Filter board MHW505A012...
Page 187: ...Airwell reserves the right to make change without any notice...
