28
Heatless Desiccant Dryers
|
Instruction Manual
Section 6:
Operation
Figure 6.5: Stage 2: Repressurization
•
At completion of Stage 1, the left solenoid is de-energized and switches spool position allowing the air supply through the solenoid to close the left
exhaust shuttle. The left tower then repressurizes for a 34 second period.
•
Note: Any air flowing through the dryer, passes through both towers.
Purge
Control
Non-Return
Valve
Purge
Control
Non-Return
Valve
IN
OUT
A
A
A
ON
OFF
ON
Wet
Purge
Dry
OFF
SV 2
(Right Solenoid Control Valve)
LEGEND:
SV 1
(Left Solenoid Control Valve)
Seconds: 0
120 154
274 308
Alternate Outlet Position
Alternate Inlet Position
1.0µ (reverse flow)
After Filter
Standard Running Mode
-
Hours Run 456
Service History # 0
3
1
2
3
1
2
Silencer
Silencer
Controller
Left Tower
Pressure Gauge
Right Tower
Pressure Gauge
Left
Desiccant
Tower
Right
Desiccant
Tower
TIMING CHART:
SV1: Left Solenoid
Control Valve
SV2: Right Solenoid
Control Valve
0.01µ
Pre-Filter
1.0µ
Pre-Filter
Water
Separator