MP-3000 Controller
105
• Evaporator coil (defrost) sensor must be
placed in the middle of the coil and at least 75
mm deep between the fins.
• Condenser sensor must be placed on the upper
left side of the condenser coil and at lest 70
mm deep between the fins.
• Ambient sensor must be placed on the bottom
plate of the right forklift pocket.
• Compressor sensor must be placed in the
manifold on the discharge tube before the
discharge service valve. See “Compressor
Discharge Temperature Sensor Replacement”
in the chapter for Refrigeration System
Diagnosis and Service.
Resistance Values for Supply, Return, Evaporator
Coil, Condenser Coil and Ambient Air Sensors
Temp.
F
Temp.
C
Ohms
Temp.
F
Temp.
C
Ohms
-40 -40 42618 53.6 12 3360
-31 -35 32198 57.2 14 3094
-22 -30 24532 60.8 16 2852
-13 -25 18850 64.4 18 2632
-4 -20 14618 68 20 2431
5 -15 11383 71.6 22 2347
10.4 -12 9838 75.2 24 2079
14 -10 8941 78.8 26 1925
17.6 -8 8132 82.4 28 1785
21.2 -6 7406 86 30 1657
24.8 -4 6752 89.6 32 1539
28.4 -2 6164 93.2 34 1430
32 0 5634 96.8 36 1330
35.6 2 5155 100.4 38 1239
39.2 4 4721 104 40 1154
42.8 6 4329 107.6 42 1076
46.4 8 3907 111.2 44 1004
50 10 3652 113 45 970
A.
Insert Sensor into condenser coil between
Tube Rows 1 and 2
Figure 35: Condenser Coil Sensor Location
AXA0173
Resistance Values for Compressor
Discharge Sensors
Temp.
F
Temp.
C
Ohms
Temp.
F
Temp
. C
Ohms
-13 -25 1,121,457 185 85 9,202
-4 -20 834,716 194 90 7,869
5 -15 627,284 203 95 6,768
14 -10 475,743 212 100 5,848
23 -5 363,986 221 105 5,091
32 0 280,824 230 110 4,446
41 5 218,406 239 115 3,870
50 10 171,166 248 120 3,354
59 15 135,140 257 125 2,924
68 20 107,440 266 130 2,580
77 25 86,000 275 135 2,279
86 30 69,282 284 140 2,021
95 35 56,158 293 145 1,797
104 40 45,812 302 150 1,591
113 45 37,582 311 155 1,393
122 50 30,986 320 160 1,247
131 55 25,680 329 165 1,118
140 60 21,397 338 170 1,015
149 65 17,914 347 175 920
158 70 15,067 356 180 834
167 75 12,728 365 185 748
176 80 10,793 374 190 679
To Next Page
Loading...
Need help?
General
