Daikin RXTA30B2V1B Service Manual page 197

RXTM-R+RXTP-R+ARXTP-R+RXTA-B+FTXTA30B2V1B(W)
(B)+FTXTM30+40R2V1B+FTXTP25+35M5V1B+ATXTP25+35M5V1B
R32 Optimized Heating 4 Split
ESIE21-12A – 2022.02
Indoor units FTXTM-R
Name Symbol
Indoor unit R1T
air (room)
thermistor
Heat R2T
exchanger
thermistor
Indoor units FTXTP-M and ATXTP-M
Name Symbol
Indoor unit R1T
air (room)
thermistor
Heat R2T
exchanger
thermistor
4 Determine the thermistor resistance that matches the measured
temperature.
Thermistor – Table A
T °C kΩ T °C
–20 197.81 10
–19 186.53 11
–18 175.97 12
–17 166.07 13
–16 156.80 14
–15 148.10 15
–14 139.94 16
–13 132.28 17
–12 125.09 18
–11 118.34 19
–10 111.99 20
Location Connector
(PCB) (pins)
Display PCB S800:5‑11
A3P on
main PCB (I/
U)
Main (I/U) S501:1‑2
Location Connector
(PCB) (pins)
Display PCB S26:1‑2
on main
PCB (I/U)
Main (I/U) S32:1‑2
kΩ T °C kΩ
39.96 40 10.63
38.08 41 10.21
36.30 42 9.81
34.62 43 9.42
33.02 44 9.06
31.50 45 8.71
30.06 46 8.37
28.70 47 8.05
27.41 48 7.75
26.18 49 7.46
25.01 50 7.18
4 Components
|
Inter- Referen
mediate ce
connector (table)
(pins)
S27:1‑2 on B
display PCB
- A
Inter- Referen
mediate ce
connector (table)
(pins)
S27:1‑2 (on B
display PCB)
- A
T °C kΩ
70 3.44
71 3.32
72 3.21
73 3.11
74 3.01
75 2.91
76 2.82
77 2.72
78 2.64
79 2.55
80 2.47
Service manual
197