SPX Hankinson HHE Series Instruction Manual page 41

Program Step 1
Left tower status drying
Right tower status regen.
Left tower
closed
pressure switch
Right tower
closed
pressure switch
Left inlet solenoid
off
(see NOTE 1)
Left purge solenoid off
Right inlet solenoid
off
(see NOTE 1)
Right purge solenoid off
Inlet shuttle valve
(see NOTE 2)
Left inlet valve
open
(see NOTE 1)
Left purge valve closed
Right inlet valve
open
(see NOTE 1)
Right purge valve closed
Temperature display -
none
thermistor location
NOTE 1: Standard Pressure Models 4100 & 5400 ONLY. High Pressure Models 40 through 450 ONLY.
NOTE 2: Standard Pressure Models 40 through 3000 ONLY.
2 3
drying drying
regen. regen.
closed closed
closed at start,
closed
open at end
off off
off off
on on
off on
open to left chamber
open open
closed closed
closed closed
closed open
upper left lower right
Table 8-2
Cycle Sequence Steps
— 39 —
4 5
drying regen.
regen. drying
closed closed
open at start,
closed
closed at end
off off
off off
on off
off off
open open
closed closed
closed open
closed closed
upper left none upper right
6 7
regen. regen.
drying drying
closed at start,
closed
open at end closed at end
closed closed
on on
off on
off off
off off
open to right chamber
closed closed
closed open
open open
closed closed
lower left
8
regen.
drying
open at start,
closed
on
off
off
off
closed
closed
open
closed
upper right