Daikin VRV Inverter K Series Manual page 325

SI-05C.BOOK Page 311 Monday, November 6, 2000 4:13 PM
SiE-05C
3.15 Outdoor Unit: Malfunction of Discharge Pipe Pressure Sensor
J J J J A A A A
Remote Controller
Display
Supposed Causes
Troubleshooting
∗1: Voltage measurement point
∗2: Refer to pressure sensor, pressure / voltage characteristics table.
Refer to Pressure Sensor Voltage Output / Detected Pressure Characteristics on P366
Troubleshooting PLUS Series
Defect of high pressure sensor system
Connection of low pressure sensor with wrong connection.
Defect of outdoor unit PC board.
The
high pressure
NO
sensors connected to X22A
(red) of outdoor unit
PC board.
YES
The
relationship
between the ∗1
VH and high pressure
is normal (see ∗2) when
YES
voltage is measured between
X22A pins (1) and (3) of
outdoor unit PC
board (A1P)
(see ∗1).
NO
Connect the high pressure
sensor and turn on again.
Replace outdoor unit PC
board A1P.
Replace the high pressure
sensor.
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Troubleshooting
(VF149)
311