13
HB Series Desiccant Dryer Models 150-8000
ingersollrandproducts.com
Depress the +/- button until the desired set point is displayed.
Pressing SELECT DISPLAY saves the current selection.
+
-
HIGH DEW PT
ON
9.9.2
SETPOINT ADJUSTMENT
On dryers equipped with the optional Energy Management
System, the High Dew Point Alarm setpoint can be adjusted
as follows.
The following illustrates the method of adjusting the setpoint
for the High Dew Point Alarm feature:
9.0 TECHNICIAN MODE
To enter a negative number, depress the +/- button.
Otherwise, proceed to the next step.
+
-
HI PDP SETPOINT
-___
Depressing ENTER saves the selected set point.
ENTER
Use the numbers on the keypad to enter the desired
pressure dew point temperature for the EMS setpoint.
2
HI PDP SETPOINT
-2__
Use the numbers on the keypad to enter the desired
pressure dew point temperature for the HIGH DEW POINT
ALARM setpoint.
1
HI HUMID SETPOINT
-21_
HI PDP SETPOINT
-21
9.10 PROGRAM JOG
All heated purge and blower 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.
A
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.
A
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:
Depress the SELECT DISPLAY button until the HIGH DEW
POINT SET POINT screen is displayed.
HI PDP SETPOINT
-10
SELECT
DISPLAY
SET
Pressing the SET button permits the value of the HIGH
DEW POINT ALARM SETPOINT to be changed
HI PDP SETPOINT
___
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.
JOG MODE
WAIT
SELECT
DISPLAY
Should the program be at a stage whereby the Microprocessor Control
permits the jog feature, the following will be displayed:
Depress the SELECT DISPLAY button until the JOG MODE
display appears. The PRESS ENTER prompt will appear,
along with the current step and remaining time, should the
program be able to advance at this stage.
JOG: ENT TO JOG
STEP 6 TME10699
Depressing the ENTER button advances the program to the next
step. The display will indicate the next step has been initiated.
JOG MODE
STEP 8 TME00550
ENTER
9.11 SHUTDOWN SEQUENCE
Pressing the OFF button turns the dryer off and initiates a 30 second
shutdown sequence that repressurizes the offline tower, and leaves both
inlet flow valves open and both purge valves closed.
A
NOTICE
The Program Jog advances steps #6, #8, #20 & #22, which are the
longest program steps. The balance of the steps are not advanced in
Program Jog Mode.
A
NOTICE
To exit the TECHNICIAN MODE, press “Select Display” key to the
initial “SET OPMODE” screen or “BEGIN TECHNICIAN MODE” screen
and depress the
button to return to the CUSTOMER MODE.
A
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.
120.26 Dryer - Operation, Installation, Maintenance Manual, and Parts
