Daikin J Series Service Manual Page 219

  • Download
  • Add to my manuals
  • Print
  • Page
    / 344
  • Table of contents
  • TROUBLESHOOTING
  • BOOKMARKS
  • Rated. / 5. Based on customer reviews
Page view 218
Troubleshooting - SkyAir Indoor Unit SiE18-201
208 Service Diagnosis
2.6.7 Malfunction of Suction Air Temperature Sensor System
Remote
Controller
Display
C9
Applicable
Models
AII indoor unit models
Method of
Malfunction
Detection
Malfunction detection is carried out by temperature detected by suction air temperature sensor.
Malfunction
Decision
Conditions
When the suction air temperature sensor’s thermistor becomes disconnected or short-circuited
while the unit is running.
Supposed
Causes
Failure of the sensor itself
Broken or disconnected wire
Failure of indoor unit PC board
Failure of connector contact
Troubleshooting
Note:
Measure the resistance while referring to the thermistor temperature and resistance conversion table.
Thermistor temperature and resistance conversion table.
Disconnect the suction air
temperature sensor (R1T) from
X19A on the indoor unit PC
board and measure the
resistance.
Suction air temperature
sensor replacement
If contact is OK.
replace outdoor unit PC
board.
Is the thermistor
normal?
(See note)
(MF017)
NO
YES
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
Temperature Suction, heat exchanger(indoor)
outdoor air, outdoor unit suction
pipe sensor (k)
Temperature Suction, heat exchanger(indoor)
outdoor air, outdoor unit suction
pipe sensor (k)
-6.0 90.8 28.0 17.6
-4.0 81.7 30.0 16.2
-2.0 73.5 32.0 14.8
0.0 66.3 34.0 13.6
2.0 59.8 36.0 12.5
4.0 54.1 38.0 11.5
6.0 48.9 40.0 10.6
8.0 44.3 42.0 9.8
10.0 40.2 44.0 9.1
12.0 36.5 46.0 8.4
14.0 33.2 48.0 7.8
16.0 30.2 50.0 7.2
18.0 27.5 52.0 6.9
20.0 25.1 54.0 6.2
22.0 23.0 56.0 5.7
24.0 21.0 58.0 5.3
26.0 19.2
Page view 218
1 2 ... 214 215 216 217 218 219 220 221 222 223 224 ... 343 344

Comments to this Manuals

No comments