DHL HEATLESS REGENERATIVE DRYER SECTION 6
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6.10 OPERATING CYCLES
As described previously, the dryer can operate
according to three different operating modes: FIX,
DPD and TEST.
6.10.1 FIX
In FIX mode, the cycle times are managed according
to the following operating parameters:
• Required Dew Point (- 4°F,-20°C, -40°F -
40°C, -94°F -70°C);
• Set load percentage (OFF … 100%);
• Maximum dryer pressure (Max. 150 PSIG
,10,3 barg )
Load
Low Pressure High Pressure
-20°C/-4°F -40°C/-40°F -70°C/-94°F -20°C/-4°F -40°C/-40°F -70°C/-94°F
Time ATime BTime ATime BTime ATime BTime ATime BTime ATime BTime ATime B
[%] [s] [s] [s] [s] [s] [s] [s] [s] [s] [s] [s] [s]
100 355 95 240 60 70 50 270 180 180 120 46 74
90 320 130 217 83 64 56 244 206 163 137 42 78
80 285 165 193 107 57 63 217 33 145 155 38 82
70 251 199 170 130 51 69 191 259 128 172 34 86
60 216 234 147 153 45 75 165 285 111 189 30 90
50 181 269 124 177 39 82 139 312 94 207 27 94
40 146 304 100 200 32 88 112 338 76 224 23 97
30 111 339 77 223 26 94 86 364 59 241 19 101
OFF045003000120045003000120
Note: Time A = Time C and Time B = Time D
If the default configuration is changed, verify that the installed nozzle is suitable for the new settings.
Figure 6-6: Timing Sequence Diagram
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