Orion-system VCM Controller Manuel d'utilisateur télécharger pdf (Page 56)

Technical Guide

VCM Controller

Appendix

OE275 Suction Pressure Transducer

Coil Pressure – Temperature – Voltage Chart

Temperature

Pressure

PSI

Signal

DC Volts

Temperature

Pressure

PSI

Signal

DC Volts

20 43.03 1.19 51 85.79 1.88

21 44.21 1.21 52 87.54 1.91

22 45.40 1.23 53 89.30 1.93

23 46.59 1.25 54 91.06 1.96

24 47.77 1.27 55 92.82 1.99

25 48.96 1.29 56 94.58 2.02

26 50.14 1.31 57 96.34 2.05

27 51.33 1.32 58 98.10 2.08

28 52.52 1.34 59 99.86 2.10

29 53.70 1.36 60 101.62 2.13

30 54.89 1.38 61 103.60 2.16

31 56.25 1.40 62 105.58 2.20

32 57.61 1.43 63 107.56 2.23

33 58.98 1.45 64 109.54 2.26

34 60.34 1.47 65 111.52 2.29

35 61.70 1.49 66 113.50 2.32

36 63.06 1.51 67 115.48 2.35

37 64.42 1.53 68 117.46 2.39

38 65.78 1.56 69 119.44 2.42

39 67.14 1.58 70 121.43 2.45

40 68.51 1.60 71 123.65 2.49

41 70.06 1.63 72 125.87 2.52

42 71.61 1.65 73 128.09 2.56

43 73.16 1.68 74 130.31 2.59

44 74.71 1.70 75 132.53 2.63

45 76.26 1.73 76 134.75 2.66

46 77.82 1.75 77 136.97 2.70

47 79.37 1.77 78 139.19 2.74

48 80.92 1.80 79 141.41 2.77

49 82.47 1.82 80 143.63 2.81

50 84.02 1.85

OE275 Suction Pressure Transducer Testing

Use the voltage column to check the Suction Pressure Transducer while

connected to the VCM Controller. The VCM Controller must be pow-

ered for this test. Read voltage with a meter set on DC volts. Place the

negative lead from the meter on a ground (GND) terminal located on

the VCM’s 12-pin terminal block. Place the positive lead from the meter

on the AIN5 terminal located on the VCM’s 12-pin terminal block.

OE275 Suction Pressure Transducer

Testing

The Evaporator Coil Temperature is calculated by converting the Suc-

tion Pressure to Temperature. The Suction Pressure is obtained by us-

ing the OE275 Suction Pressure Transducer which is connected into the

Suction Line of the Compressor. See the OE275 Suction Pressure Trans-

ducer, Pressure, Temperature and Voltage Chart. The chart shows a tem-

1 2 ... 51 52 53 54 55 56 57 58 59 60

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Orion-system VCM Controller Manuel d'utilisateur Page 56

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