4--10
©
2012 Mobile Climate Control
T-353 Rev. 01/2013
h. From the temperature/pressure chart, determine
the saturation temperature corresponding to the
evaporator outlet pressure.
i. Note the temperature of the suction gas at the ex
pansion valve bulb. Subtract the saturation tem
perature from this temperature. The difference is
the superheat of the suction gas.
j. The superheat may cycle from a low to high read
ing. Monitor the superheat taking readings every
3-5 minutes for a total of 5-6 readings. Calculate
the superheats, add the readings and divide by the
number of readings taken to determine average su
perheat. The superheat should be 12
±
1.8
°
F.
k. If superheat is not within tolerance, replace the
valve.
Summary of Contents for 68AC430-100
Page 1: ...OPERATION SERVICE for 68AC430 100 REV 01 2013 T 353 Manual T 353 2012 Mobile Climate Control...
Page 30: ...5 2 2012 Mobile Climate Control T 353 Rev 01 2013 98 67037 00 Figure 5 2 Evaporator Motors...
Page 31: ...5 3 2012 Mobile Climate Control T 353 Rev 01 2013 98 67037 00 Figure 5 3 Condenser Motors...
Page 33: ...5 5 2012 Mobile Climate Control T 353 Rev 01 2013 98 67037 00 Figure 5 5 BT324 Control Circuit...
