SPX Hankinson HHE Series Instruction Manual page 18

Table 5-1 (continued from previous page)
NOTEs:
1. The Timer Controller will accept AC (Alternating Current) input power. The Level 1 and Level 2 Controllers will accept either AC
(Alternating Current) or DC (Direct Current) input power.
2. (Level 1 & Level 2 Controllers) The auxiliary power terminals are in parallel with the input power terminals (i.e., there are two common
terminals for each input power connection point, L, N, and PE. The auxiliary power terminals provide a connection point for another device
that operates on the same voltage as the Desiccant Dryer Controller.
3. (Level 1 & Level 2 Controllers) The controller has two power recovery modes. For Level 1 the selection is made using a jumper on the
circuit board. For Level 2 the selection is made using the switches on the front panel. In one mode, the controller remembers its state (on
or off) prior to a power interruption and returns to that state when power is restored. In the other mode, the controller always returns to the
off state when power is restored after an interruption.
4. (Level 1 & Level 2 Controllers) The service reminder LEDs indicate that it is time to perform preventive maintenance on the (a) filters
and drains, (b) valves, or (c) desiccant. The user selects between Normal and Severe service intervals. For Level 1 the selection is made
using a jumper on the circuit board. For Level 2 the selection is made using the switches on the front panel.
5. (Level 1 & Level 2 Controllers) For Level 1 and Level 2, the operating mode (with exception of the MOP) is selected via switches on the
front panel.
6. (Level 1 Controllers) The Level 1 Energy (purge) Saver feature has eight settings, 0% to 70% in 10% increments. Energy Saver setting
= 100% – (percentage of adjusted allowable inlet flow). (e.g. if the maximum adjusted allowable inlet flow to a dryer was 1000 SCFM, but
the actual flow to the inlet was only 300 SCFM, then the Energy Saving setting would be 100%-((300/1000)*100%)=70%. At 300 SCFM,
only 30% of the dryer capacity is being utilized. Average purge requirements and the related energy needed to compress that purge air can
be reduced by 70%.) The selection is made using a switch on the front panel.
7. PDP - Pressure Dew Point
MOP - Maximum Operating Pressure
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