Mitsubishi Electric CITY MULTI PUHY-P108 Service Handbook page 364

(3) Thermistor (liquid pipe/gas pipe temperature detection)
Work procedure
1. Remove the service panel.
(1) For TH11, TH12, and TH15, refer to (1)-1.2.
(2) For TH16, refer to (1)-1.2.3.
2. Remove the lead wire of the piping sensor from the control
board.
(1) TH11,TH12 (CN10)
(2) TH15,TH16 (CN11)
3. Pull out the temperature sensor from the temperature sen-
sor housing, and replace the temperature sensor with the
new one.
4. Connect the lead wire of the temperature sensor securely
on the control board.
(4) Pressure sensor
Work procedure
1. Remove the service panel.
(1) For the pressure sensors PS1 and PS3, refer to (1)-1.2.
2. Remove the pressure sensor connector in trouble from
the control board, and insulate the connector.
(1) Liquid-side pressure sensor (CNP1)
(2) Intermediate-part pressure sensor (CNP3)
3. Attach a new pressure sensor to the place which is shown
in the figure, and insert the connector to the control board.
Note: When gas leaks from the pressure sensor, repair
the leak, and follow the instructions above if re-
quired.
*Special care must be taken when replacing heavy parts.
Explanatory figure
TH16
TH11
TH12
CMB-1016NU-GA
Explanatory figure
LEV2
TH11
TH12
*For NU-G-type, there is no SVM2.
CMB-1016NU-GA
- 355 -
[ IX Troubleshooting ]
TH15
TH16
PS1
PS3
LEV3
LEV1
SVM2
SVM1
TH15