High Dew Point Alarm (Optional); Description And Activation; Setpoint Adjustment; Program Jog - Ingersoll Rand EH Serie Manual De Operador

9.8 HIGH DEW POINT ALARM (OPTIONAL)

9.8.1

DESCRIPTION AND ACTIVATION

When the dryer is equipped with the optional Energy
Management System feature, the dew point sensor transmits
the dew point to the Microprocessor Control Should the outlet
pressure dew point exceed the customer specified set point,
High Dew Point Alarm will activate.
The following illustrates the method of activating the High
Dew Point Alarm feature:
HIGH DEW PT
SELECT
DISPLAY
Depress the SELECT DISPLAY button until the HIGH DEW
POINT screen is displayed.
HIGH DEW PT
+
-
Depress the +/- button until the desired set point is displayed.
Pressing SELECT DISPLAY saves the current selection.
9.8.2

SETPOINT ADJUSTMENT

On dryers equipped with the optional Energy Management
System, the High Dew Point Alarm setpoint can be adjusted
as follows. Factory settings on -40°F dryers is -28°F.
The following illustrates the method of adjusting the setpoint
for the High Dew Point Alarm feature:
HI PDP SETPOINT
SELECT
DISPLAY
Depress the SELECT DISPLAY button until the HIGH DEW
POINT SET POINT screen is displayed.
HI PDP SETPOINT
SET
Pressing the SET button permits the value of the HIGH
DEW POINT ALARM SETPOINT to be changed
HI PDP SETPOINT
+
-
To enter a negative number, depress the +/- button.
Otherwise, proceed to the next step.
9.0 TECHNICIAN MODE
OFF
ON
-10
___
-___
EH Series Desiccant Dryer Models 150-8000
http://www.ingersollrandproducts.com
HI PDP SETPOINT
2
Use the numbers on the keypad to enter the desired
pressure dew point temperature for the EMS setpoint.
HI PDP SETPOINT
1
Use the numbers on the keypad to enter the desired
pressure dew point temperature for the HIGH DEW POINT
ALARM setpoint.
HI PDP SETPOINT
ENTER
Depressing ENTER saves the selected set point.
NOTICE
The High Dew Point Alarm set point should not be greater than the
Energy Management System set point. Failure to do so will result in an
alarm indication. Ingersoll Rand recommends setting the High Dew
Point Alarm at least 10°F wetter than the Energy Management System
setpoints.

9.9 PROGRAM JOG

All heated purge dryers come equipped with a Program Jog feature that
is accessible via the Microprocessor Controller. This feature allows the
dryer cycle to be accelerated for troubleshooting and routine inspection
purposes. By accessing the Program Jog routine in the Microprocessor
Control, the customer can advance the program to the next program
step. Note that the program advance feature will not advance through all
steps of the program.
WARNING
When the Program Jog is initiated in the middle of the heating cycle,
advancing the program without allowing normal tower cool down will
result in an outlet air temperature that may exceed 300°F. As such,
proper precautions must be taken to protect downstream equipment
from high temperature exposure.
NOTICE
During the Program Jog routine, the display may show intermediate
steps in the program that are not active in the current program set up.
This should be considered normal operation.
The Microprocessor Controller will only permit the jog function during
specific stages of the program. Should the program be at a stage where
the program can not advance, the following will be displayed:
SELECT
DISPLAY
Depress the SELECT DISPLAY button until the JOG MODE
display appears. The WAIT prompt will appear should the
program not be able to advance at this stage.
-2__
-21_
-21
JOG MODE
WAIT
13