Daikin RZQS100B7V3B [221/344] Voltage measurement point

Daikin RZQS100B7V3B [221/344] Voltage measurement point
Troubleshooting by Remote Controller Display / LED Display SiBE27-702
208 Troubleshooting
Troubleshooting
1 : Voltage measurement point
2: Refer to pressure sensor, pressure/voltage characteristics table on P
249
.
Replace the low pressure sensor.
Connect low pressure sensor
properly and restart system.
NO
NO
Replace outdoor unit PC board
A1P.
YES
YES
The low
pressure sensor is
connected to X64A (blue)
of outdoor unit PC
board (A1P).
The
relationship
between the 1
VH and low pressure
isnormal (see 2) when
voltage is measured between
X64A pins (2) and
(3) of outdoor unit
PC board (A1P)
(see 1).
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
Outdoor unit PC board A2P
GND
+5V
Low pressure sensor
X64A
Microcomputer
A/D input
2 Measure voltage here.
4
3
2
1
Red
Black
White
(V2809)

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