Outdoor Unit: Malfunction Of Suction Pipe Pressure Sensor - Daikin VRV Inverter K Series Manual

SI-05C.BOOK Page 147 Monday, November 6, 2000 4:13 PM
SiE-05C

3.24 Outdoor Unit: Malfunction of Suction Pipe Pressure Sensor

J J J J C C C C
Remote Controller
Display
Supposed Causes
Troubleshooting
∗1: Voltage measurement point
∗2: Refer to pressure sensor, pressure/voltage characteristics table on P366.
Troubleshooting Inverter K Series
Defect of low pressure sensor system
Connection of high pressure sensor with wrong connection.
Defect of outdoor unit PC board.
The low
pressure sensor is
NO
connected to X21A (blue)
of outdoor unit PC
board (A1P).
YES
The
relationship
between the ∗1
VH and low pressure is
YES
normal (see ∗2) when voltage
is measured between X21A pins
(2) and (3) of outdoor unit
PC board (A1P)
(see ∗1).
NO
Connection of high pressure sensor
with wrong connection.
Replace outdoor unit PC board A1P.
Replace the low pressure sensor.
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Troubleshooting
(VF050)
147