10
Green/Yellow); RUNNING (LED solid green).
The display will scroll the dryers operating pa-
rameters of System Pressure, Line Pressure, Flow,
%RH, Water Temperature and Air Temperature.
Pressing the "HOLD" key will freeze the display
from scrolling. The "HOLD" will flash indicating
the Hold Mode. Press again to continue scrolling.
See Section 8 for Settings and Adjustments. See
Appendix for details Menuing and description of
Display and Key operations.
7.8.1 The System Pressure indication will probably
be in the range of 28 to 30 PSIG depending on air
flow, site elevation and the effect of the humidity
alarm, if it is active. The dryer will automatically
shut down if the humidity alarm remains active for
approximately five minutes. If the unit is shut down
by the Humidity Alarm Delay, just turn the Power
switch off and on again to reset it.
7.8.2 When the Humidity Alarm remains cleared,
adjust the Line Pressure Regulator (29) to accord
with local practice. The result will be displayed on
the LCD Display. NOTE: Press the HOLD button
to freeze this display showing system pressure and
line pressure while making adjustment.
7.8.3 Inspect the dehydrator for water leaks. If
a leak is found, discon nect the electrical service
before performing the corrective action. NOTE:
These models are equipped with a thermal controlled
fan that will not run until the water temperature is
above 89°F.
7.8.4 When the dehydrator has been running for at
least twenty minutes, check the water level in the
water sight tube (24). If the water is below the
center float switch, add water at the water fill fit-
ting. Either turn off the Air Dryer and add water per
Paragraph 7.4 or wait until a purge blast occurs and
then quickly remove the red plug and fill with water
for about 20 seconds, then replace plug before next
purge blast. NOTE: The purge cycle occurs every
30 seconds so it's important not to leave the Filler
Port open otherwise some water could splash out
during the purge valve energizing. Overfill until the
Wa t er Eject Float begins to rise (the middle float in
the sight tube) and verify the lowering of the water
level as water is ejected out through the Water Eject
Solenoid Valve (8).
7.8.5 Verify that the cabinet air filters (46) are in
place on the rear of the cabinet. After 20 minutes
of operation, confirm the LCD Display with run-
ning, with no Alarms and a solid green led status
indicating Running with an armed alarm circuit.
Also recheck the system pressure adjust of 28-29
psig and readjust if required.
7.8.6 Verify the alarm wiring and monitoring
system connection by causing a dryer alarm. Call
your Alarm Center to confirm proper wiring and
operation. NOTE: Minor Alarms like Low or High
Pressure will automatically clear themselves. How-
ever, major alarms that cause Dryer shutdown need
to be reset via the LCD display MENU - ALARM
RESET - YES - EXIT. If the Air Dryer is a stand
alone without an AT S, turning the Dryer OFF and
back ON will also reset the major alarm. See Ap-
pendix C for display operations.
8.0 SETTINGS AND ADJUSTMENT
PROCEDURES
Refer to the Appendix C for display and program-
ming operation.
8.1 SETTING THE CURRENT TIME AND
DATE
8.1.1 Press MENU, arrow down to SETUP, press
OK. Select CURRENT TIME and press OK. Use
the UP and DOWN arrows to increase and decrease
the Hours. Use right arrow to select MINUTES. Use
the UP and DOWN arrows to change the minutes.
Press OK when done. The AM/PM indication will
change as the hours pass by 12 o'clock. Dashed line
below the digits indicates selection to be edited.
8.1.2 Arrow down and select CURRENT DAY and
press OK. Use the UP and DOWN arrows to change
the month. Use the right arrow to select DAY. Use
the UP and DOWN arrows to change the DAY. Use
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