Test Mode For Switches And Sensors - PREVOST H3-41 Maintenance Manual

SECTION 22: HEATING AND AIR CONDITIONING
The table values are for unloaded, disconnected
temperature sensor (thermistor) probed at the
temperature sensor connector pins.
If the temperature sensor resistance value is
measured at the multiplex module inputs, the
measured value includes a parallel 33 kohms
resistor.
46 PA1621 Maintenance Manual All Series | Revised February 2019
TEMPERATURE SENSOR
Temp °C Temp °F
-40 -40
-35 -31
-30 -22
-25 -13
-20 -4
-15 5
-10 14
-5 23
0 32
5 41
10 50
15 59
20 68
25 77
30 86
35 95
40 104
45 113
50 122
55 131
60 140
65 149
70 158
75 167
80 176
85 185
90 194
95 203
100 212
105 221
110 230
115 239
120 248
125 257
130 266
135 275
140 284
145 293
150 302
5.4 TEST MODE FOR SWITCHES AND
SENSORS
When in switch/sensor test mode (see Section
06: ELECTRICAL for complete information), the
A/C compressor HI and LO pressure values are
displayed one after the other instead of the
outside temperature in the telltale panel LCD
Resistance Ohms
(temperature sensor
disconnected)
100865
72437
52594
38583
28582
21371
16120
12261
9399
7263
5658
4441
3511
2795
2240
1806
1465
1195
980
808
670
559
468
394
333
283
241
207
178
153
133
115
100
88
77
68
60
53
47