4. Service procedures
Sensor Temperature Display Function (Displayed both when operating and stopped)
The below check procedure can be used to display all remote controller, indoor unit, and outdoor unit sensor temperatures.
<Check procedure>
(1)Press and hold the button and button simultaneously for 4 seconds or longer.
(2)Unit No.
(3)Press the temperature setting and buttons and change the item code to the sensor address of the sensor that you want to monitor.
(For the relationship between the sensor address and the sensor type, refer to the below Sensor Tempera- ture Correlation Table.)
(4)During group control and simultaneous operation multi control, press the button and change to the unit that you want to monitor.
(5)Press the button to return to normal remote controller operation.
NOTE
The temperature display reads “- - - - ” for units that are not connected.
If monitor mode is selected during normal operation, the only parts of the LCD that change are those shown in the figure.
All other displays do not change, and remain as they were during normal operation.
Figure: Sample display when discharge temperature at unit No. 1-1 is 185˚F
Sensor Temperature Correlation Table
Sensor installation | Sensor | Sensor type | Sensor | Sensor type | |
location | address | address | |||
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| 00 | Room temp. | 05 | – | |
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| (temp. used for control)* |
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| |
| 01 | Remote controller temp. | 06 | Discharge temp. | |
Indoor unit | 02 | Indoor intake temp. | 07 | – | |
| 03 | Indoor heat exchanger temp. (E1) | 08 | – | |
| 04 | Indoor heat exchanger temp. (E2) | 09 | – | |
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| 0A | Discharge temp. (TD) | 12 | – | |
| 0b | – | 13 | – | |
| 0C | – | 14 | Current | |
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| (AC current) | |
Outdoor unit | 0d | Intake temp. (TS) | 15 | Outdoor electronic control | |
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|
| valve position | |
| 0E | Outdoor heat exchanger temp. (C1) | 16 | – | |
| 0F | Outdoor heat exchanger temp. (C2) | 17 | – | |
| 10 | – | 18 | – | |
| 11 | Outdoor air temp. | 19 | – | |
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* Main unit only when group control is enabled
SM831148
4 |
