[
VIII
Troubleshooting ]
- 168 -
HWE1410A
GB
Troubleshooting Principal Parts of HBC Controller
-2- Troubleshooting Principal Parts of HBC Controller
1. Pressure
sensor
Troubleshooting flow chart for pressure sensor
Check the connectors on pressure sensor P1
for proper connections.
All the compressors of the outdoor units to
which the BC controller is connected are stopped.
Check P1 on the self-diagnosis LED, and
check that the pressure reading is
0.098 MPa [14 psi] or above.
On the self-diagnosis monitor, measure
Outdoor high-pressure 63HS1
Outdoor low-pressure 63LS
HBC controller pressure P1 (liquid side)
Check whether the result is
63HS1 > P1 > 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 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 1
NO
YES
YES
YES
Note 2
Note 3
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.
0000002394.book 168 ページ 2016年1月12日 火曜日 午後4時49分
Содержание CITY MULTI CMB-WP1016V-GA1
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Страница 27: ... I Read Before Servicing 18 HWE1410A GB ...
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Страница 50: ... III HBC Controller Components 41 HWE1410A GB 4 Top side 1 CMB WP1016V GA1 2 CMB WP108V GA1 VB3f VB3e ...
Страница 52: ... III HBC Controller Components 43 HWE1410A GB 2 Top side 1 CMB WP1016V GB1 2 CMB WP108V GB1 VB3f VB3e ...
Страница 55: ... III HBC Controller Components 46 HWE1410A GB 2 Power supply circuit board ...
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Страница 67: ... IV Electrical Wiring Diagram 58 HWE1410A GB ...
Страница 68: ... 59 HWE1410A GB V Refrigerant Circuit 1 Refrigerant Circuit Diagram 61 2 Principal Parts and Functions 64 ...
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Страница 117: ... VII Test Run Mode 108 HWE1410A GB ...
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Страница 207: ... VIII Troubleshooting 198 HWE1410A GB ...
Страница 208: ... 199 HWE1410A GB IX LED Monitor Display on the Outdoor Unit Board 1 How to Read the LED on the Service Monitor 201 ...
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Страница 292: ... IX LED Monitor Display on the Heat source Unit Board 283 HWE1410A 0000002394 book 283 ページ 2016年1月12日 火曜日 午後4時49分 ...
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