Carrier 40MAHB Series Service Manual page 39

40MAHB: Service Manual
Appendix 3
° C ° F
-5 23
-4 24.8
-3 26.6
-2 28.4
-1 30.2
0 32
0.5 32.9
1 33.8
1.5 34.7
2 35.6
2.5 36.5
3 37.4
3.5 38.3
4 39.2
4.5 40.1
5 41
6 42.8
7 44.6
8 46.4
9 48.2
10 50
11 51.8
12 53.6
13 55.4
14 57.2
15 59
16 60.8
17 62.6
18 64.4
19 66.2
20 68
IPM Continuity Check
Turn off the power, let the large capacity electrolytic capacitors discharge completely, and dismount the IPM. Use a digital tester to measure the
resistance between P and UVWN; UVW and N.
DIGITAL TESTER
(+) Red
P
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
Table 10 —
° C ° F
21 69.8
22 71.6
23 73.4
24 75.2
25 77
25.5 77.9
26 78.8
27 80.6
28 82.4
29 84.2
30 86
31 87.8
32 89.6
33 91.4
34 93.2
35 95
36 96.8
37 98.6
38 100.4
39 102.2
40 104
41 105.8
42 107.6
43 109.4
44 111.2
45 113
46 114.8
47 116.6
48 118.4
49 120.2
50 122
Table 11 — Digital Tester
NORMAL
RESISTANCE VALUE
(-) Black
N 
U
(Several M
V
W

T(XF)=9XT(XC)/5
° C ° F ° C
51 123.8 82
52 125.6 83
53 127.4 84
54 129.2 85
55 131 86
56 132.8 87
57 134.6 88
58 136.4 89
59 138.2 90
60 140 91
61 141.8 92
62 143.6 93
63 145.4 94
64 147.2 95
65 149 96
66 150.8 97
67 152.6 98
68 154.4 99
69 156.2 100
70 158 101
71 159.8 102
72 161.6 103
73 163.4 104
74 165.2 105
75 167 106
76 168.8 107
77 170.6 108
78 172.4 109
79 174.2 110
80 176 111
81 177.8 112
DIGITAL TESTER
(+) Red
U

V
W
(+) Red
39
° F ° C
179.6 113
181.4 114
183.2 115
185 116
186.8 117
188.6 118
190.4 119
192.2 120
194 121
195.8 122
197.6 123
199.4 124
201.2 125
203 126
204.8 127
206.6 128
208.4 129
210.2 130
212 131
213.8 132
215.6 133
217.4 134
219.2 135
221 136
222.8 137
224.6 138
226.4 139
228.2 140
230 141
231.8 142
233.6 143
NORMAL
RESISTANCE VALUE
(-) Black

(Several M
N
° F
235.4
237.2
239
240.8
242.6
244.4
246.2
248
249.8
251.6
253.4
255.2
257
258.8
260.6
262.4
264.2
266
267.8
269.6
271.4
273.2
275
276.8
278.6
280.4
282.2
284
285.8
287.6
289.4
