Troubleshooting by Indication on the Remote Controller
Troubleshooting
167
Troubleshooting
NO
YES
NO
YES
NO
YES
CHECK 2
Is the stop
valve open?
Open the stop valve.
Mount a pressure gauge on the low-pressure service port.
Connect the Service Checker.
Reset the operation using the remote controller, and then
restart the operation.
Are the
characteristics of the
low pressure sensor
normal?
(See *1.)
Replace the low pressure sensor.
Is the
pressure detected
with the PC board
normal?
(See *2.)
Replace the main PC board.
· The low pressure sensor is normal, and the pressure
detected with the PC board is also normal.
· The low pressure has really become low.
Refer to information on P.219, remove the
causes by which the low pressure has become low.
*1: Make a comparison between the voltage of the pressure sensor (*4) and that read by the
pressure gauge.
(As to the voltage of the pressure sensor, make measurement of voltage at the connector,
and then convert it to pressure according to information on P.253.)
*2: Make a comparison between the low pressure value checked with the Service Checker
and the voltage of the pressure sensor (see *1).
*3: Make measurement of voltage of the pressure sensor.
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
+5V
(4)
(3)
(2)
(1)
Connector for low pressure sensor
Micro controller
A/D input
Make measurement of DC voltage between these wires. (*4)
(Blue)
Red
Black
White
Low
pressure
sensor
Panasonic
Содержание U-4..6ML5XPQ
Страница 1: ...Service Manual U 4 6ML5XPQ DPQ Urban Multi Mini UM Heat Pump ...
Страница 2: ......
Страница 12: ...Introduction x Urban Multi ML5 Mini UM Heat Pump ...
Страница 17: ...Specifications 5 Part 2 Specifications 1 Specifications 6 1 1 Outdoor Units 6 1 2 Indoor Units 10 Panasonic ...
Страница 37: ...Specifications Specifications 25 Panasonic ...
Страница 38: ...Specifications 26 Specifications Urban Multi ML5 Mini UM Heat Pump ...
Страница 39: ...Specifications Specifications 27 Panasonic ...
Страница 40: ...Specifications 28 Specifications Urban Multi ML5 Mini UM Heat Pump ...
Страница 134: ...Field Setting 122 Test Operation Urban Multi ML5 Mini UM Heat Pump ...
Страница 235: ...Piping Diagrams Appendix 223 U 4 5 6ML5DPQ 3D052712 Panasonic ...
Страница 238: ...Piping Diagrams 226 Appendix Urban Multi ML5 Mini UM Heat Pump ...
Страница 239: ...Wiring Diagrams Appendix 227 2 Wiring Diagrams 2 1 Outdoor Unit U 4 5 6ML5XPQ 3D059640 Panasonic ...
Страница 240: ...Wiring Diagrams 228 Appendix U 4 5 6ML5DPQ 3D05811B Urban Multi ML5 Mini UM Heat Pump ...
Страница 241: ...Wiring Diagrams Appendix 229 2 2 Field Wiring U 4 5 6ML5XPQ 3D057919 Panasonic ...
Страница 242: ...Wiring Diagrams 230 Appendix U 4 5 6ML5DPQ 3D052597 Urban Multi ML5 Mini UM Heat Pump ...
Страница 243: ...Wiring Diagrams Appendix 231 2 3 Indoor Unit S 20 25 32 63LM3HPQ Panasonic ...
Страница 244: ...Wiring Diagrams 232 Appendix S 40 50 80 125LM3HPQ Urban Multi ML5 Mini UM Heat Pump ...
Страница 245: ...Wiring Diagrams Appendix 233 S 20 25 32 40 50 63 80 100 125UM4JPQ Panasonic ...
Страница 246: ...Wiring Diagrams 234 Appendix S 20 25 32 40 50YM3HPQ Urban Multi ML5 Mini UM Heat Pump ...
Страница 247: ...Wiring Diagrams Appendix 235 S 25 32 40 63DM3HPS 3D039564C Panasonic ...
Страница 248: ...Wiring Diagrams 236 Appendix S 20 25NM3HPQ Urban Multi ML5 Mini UM Heat Pump ...
Страница 249: ...Wiring Diagrams Appendix 237 S 20 25 32 40 50 63FM3HPQ Panasonic ...
Страница 250: ...Wiring Diagrams 238 Appendix S80 100 125FM3HPQ Urban Multi ML5 Mini UM Heat Pump ...
Страница 252: ...Wiring Diagrams 240 Appendix S 32 63 100TM3JPR 3D039801D Urban Multi ML5 Mini UM Heat Pump ...
Страница 255: ...Wiring Diagrams Appendix 243 Panasonic ...
Страница 256: ...Wiring Diagrams 244 Appendix Urban Multi ML5 Mini UM Heat Pump ...
Страница 257: ...Wiring Diagrams Appendix 245 Panasonic ...
Страница 259: ...Option List Appendix 247 Panasonic ...
Страница 262: ...Example of Connection 250 Appendix Urban Multi ML5 Mini UM Heat Pump ...
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