Pressure Sensor S1Nph - Daikin EDLQO5CAV3 Service Manual

ESIE15-08B | Part 2. Troubleshooting

5.5. Pressure sensor S1NPH

Technical specification
The pressure sensor S1NPH is an analog pressure sensor.
Location
Piping diagram
Check procedure
Electrical check
W : R
ARNING
• When reconnecting a connector to the PCB, do not apply force or damage the connector or the connector pins on
the PCB.
1. Switch off the Daikin Altherma Monobloc CA via the user interface.
2. Switch off the Daikin Altherma Monobloc CA with the field supplied circuit breaker.
3. Remove the hydrobox top plate assembly, refer to
4. Remove the hydrobox front plate, refer to
5. Remove the top plate, refer to
6. Remove the front plate assembly, refer to
7. Open the compressor insulation.
8. Connect a pressure gauge to the high pressure service port and read the pressure.
9. From the graph below, determine the expected sensor output signal.
Page 94
Daikin Altherma Monobloc CA
PCB1
F
ISK OF IRE
"Removing the hydrobox top plate assembly" on page 110
"Removing the hydrobox front plate" on page
"Removing the top plate" on page
"Removing the front plate assembly" on page
5. Component checklist - Refrigerant Circuit
Description
The pressure sensor S1NPH measures the pres-
sure in the high pressure section of the refrigerant
circuit.
Unit
111.
112.
113.
19/07/16