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[8-9 Troubleshooting Problems with Major Components on BC Controller ]
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HWE1314A
GB
8-9
Troubleshooting Problems with Major Components on BC
Controller
8-9-1
Pressure Sensor
Troubleshooting flow chart for pressure sensor
Check whether the pressure sensor or the
connectors of P1 and P3 are connected,
properly
All the compressors of the outdoor units to
which the BC controller is connected are stopped.
Check P1 and P3 on the self-diagnosis
LED, and check that the detected
pressure is 0.098MPa [14psi] or less.
On the self-diagnosis monitor, measure
Outdoor high-pressure 63HS1
Outdoor low-pressure 63LS
BC controller pressure P1 (liquid side)
and P3 (intermediate part)
Check whether the result is
63HS1 P1 P3 63LS
START
Repair the fault.
Fix the relation between
the refrigerant piping
and the transmission line.
Fix the relation between the
refrigerant piping and the
transmission line.
Replace the pressure sensor.
Replace the board.
Restore contact failure.
Check whether the contact of the pressure
sensor connector in trouble is not faulty.
OK?
OK?
Check that the difference between each
detected pressure is 0.098MPa [14psi] or less.
OK?
Both the board and the pressure sensor are normal.
OK?
Is Pd P1 P3 Ps?
Remove the pressure sensor connector
from the board, and check the pressure.
OK?
OK?
Check whether the refrigerant pipe and the
transmission line are connected correctly
between the indoor unit and the BC controller.
OK?
Operating at the moment?
Check whether the refrigerant pipe
and the transmission line are
connected correctly between the indoor
unit and the BC controller.
OK?
YES
Note 2
Note 1
NO
YES
YES
YES
Note 3
Note 4
NO
NO
NO
NO
YES
NO
NO
YES
YES
YES
NO
NO
YES
NO
YES
NO
NO
Replace the pressure sensor, which detects
less than 6MPa [870psi] pressure, with the
pressure sensor, which detects 6MPa [870psi]
or more pressure, check the pressure, and
check whether the detected pressure is
displayed normally.
10 minutes or longer after
the operation stops?
Pressure 0MPa [0psi]
6MPa [870psi] pressure
or more is displayed.
Short-circuit between connecter pins #2 and #3
on the circuit board, and check the pressure.
Содержание PURY-EP200YLM-A
Страница 9: ...viii ...
Страница 13: ... 2 HWE1314A GB ...
Страница 29: ... 1 5 Cautionary notes on installation environment and maintenance 18 HWE1314A GB ...
Страница 31: ... 20 HWE1314A GB ...
Страница 44: ... 2 6 System Connection Example 33 HWE1314A GB 2 Restrictions ...
Страница 58: ... 2 7 Example System with an MA Remote Controller 47 47 HWE1314A GB 2 Restrictions ...
Страница 77: ... 66 HWE1314A GB ...
Страница 105: ... 94 HWE1314A GB ...
Страница 125: ... 4 6 BC Controller Circuit Board Components 114 HWE1314A GB 4 6 2 Four Relay Board 4 6 3 Ten Relay Board ...
Страница 137: ... 126 HWE1314A GB ...
Страница 171: ... 160 HWE1314A GB ...
Страница 227: ... 6 11 Standard Operation Data Reference Data 216 HWE1314A GB ...
Страница 230: ... 219 HWE1314A GB 7 9 9 Error Code 7113 292 7 9 10 Error Code 7117 293 7 9 11 Error Code 7130 294 ...
Страница 231: ... 220 HWE1314A GB ...
Страница 393: ... 8 16 Troubleshooting Problems Using the LED Status Indicators on the Outdoor Unit 382 HWE1314A GB ...
Страница 395: ... 384 HWE1314A GB ...