ESIE17-08 | Part 3. Repair 3.3. Unit specific repair procedures
15/11/18 | Version 1.1 Page 73
R32 Sky-Air RZAG-M
3.3.2.2. Replacing thermistor
PRELIMINARY ACTIONS
1. Switch off the Daikin unit via the user interface.
2. Switch off the Daikin unit with the field supplied circuit breaker.
3. Remove plate work when required (refer to "Basic removal" on page 67).
PROCEDURE
Removal
1. Locate the thermistor that needs to be replaced, see table below and figure 3-10 "Thermistor location" on page 74.
2. Cut the tie wraps (1) that fix the insulation (3) and the thermistor wire (2).
3. Cut the insulation (3) and remove it.
4. Pull the clip (5) that fixes the thermistor (6).
5. Remove the thermistor (6) from the thermistor holder (4).
Figure 3-9: Replacing a thermistor
Thermistor Processed on PCB Connector / colour
R1T (air) Main X11A
R2T (discharge) Main X12A / yellow
R3T (suction) Main X12A / green
R4T (heat exchanger) Main X12A / red
R5T (heat exchanger middle) Main X12A / white
R6T (liquid) Main X13A: / blue
R7T, R8T (Positive Temperature Coefficient) - -
1. Tie wrap 4. Thermistor holder
2. Thermistor wire 5. Clip
3. Insulation 6. Thermistor
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