5
3. Setting Schedule
a. Use the ‘Up’ and ‘Down’ arrow buttons to select desired
“Day of week + on/off ”. Press ‘Enter’ to adjust time.
b. Use the ‘Up’ and ‘Down’ arrow buttons to set hour (00 to
23). Press ‘Enter’ to accept new value.
NOTE: If the hour setting is ‘--:--’, Press ‘Enter’ again to
move the cursor under the “Day of week + on/off ”.
c. Use the ‘Up’ and ‘Down’ arrow buttons to set minutes
(00, 10, 20, 30, 40, 50; not shown if hour setting is ‘--:--’).
Press ‘Enter’ to accept new value and return to “Day of
week + on/off ”. Repeat steps a through c as needed.
d. Push ‘ESC’ at any time to return to the Main Menu.
4. Hours To Service
a. Use the ‘Up’ and ‘Down’ arrow buttons to scroll through
the range of permissible values (0 to 9999) before service
reminder is initiated. Press ‘Enter’ to move to next field.
(Only hours that refrigeration compressor is operating
are counted).
b. Press ‘ESC’ at any time to return to the Main Menu.
NOTE: On dryers with air-cooled condensers, regular
condenser cleaning is recommended. Dirtiness of
ambient air at installation site will determine frequency
of service. Typically once a month is recommended.
NOTE: All dryers contain an integral 3 micron filter.
As the filter element accumulates solid contaminants,
differential pressure increases. Solid particulate load in
the compressed air supply will determine frequency of
service. Typically element changeout is recommended
at least annually.
5. Alarm History
a. Use the ‘Up’ and ‘Down’ arrow buttons to scroll through
the last twenty (20) alarms beginning with the most recent
alarm.
b. Press ‘ESC’ at any time to return to the Main Menu.
c. To clear the alarm history, press and hold the ‘Enter’
button then press the ‘Up’ arrow button. Release both
buttons.
6. Energy Cost
a. Use the ‘Up’ and ‘Down’ arrow buttons to select the
desired currency ($ or €). Press ‘Enter’ to accept new
value.
b. Use the ‘Up’ and ‘Down’ arrow buttons to set the energy
cost. Press ‘Enter’ to accept new value.
c. Press ‘ESC’ at any time to return to the Main Menu.
7. Push ESC button to exit program mode.
C.
Starting Dryer
IMPORTANT: Dryer must be energized 24 hours before starting
refrigeration compressor.
NOTE: It is recommended that dryer be started 15 minutes before
compressed air flow begins.
1. On water-cooled models: after 24 hours and before starting
dryer, begin cooling water flow.
2. Check for proper electrical voltage.
3. Slowly pressurize unit air side by opening inlet isolation valve.
Check for leaks.
4. After 15 minutes, open outlet isolation valve slowly.
5. Close air bypass valve.
6. Dryer may be operated in Manual or scheduled modes.
NOTE: Check for correct phasing of unit. On air-cooled models:
check fan rotation (air must be pulled through the condenser).
Fans may not start immediately or may cycle on and off. If rotation
is in the wrong direction follow the procedure below. On water-
cooled models: After starting dryer, if an unusual noise is heard
and the discharge line does not get hot, stop the dryer, reverse
two power leads, restart, and verify discharge line gets hot.
a. Manual Mode - push ‘On/Off ’ button - refrigeration com-
pressor will start and run, green Compressor-on light will
illuminate. In this mode compressor will run continuously
and will not be turned on and off by the monitor. MANUAL
MODE will appear on interface panel.
b. Scheduled Mode - push ‘Schedule On/Off and Enter’
button. SCHEDULED MODE will appear on the inter-
face panel. The compressor will then turn on or off as
programmed.
NOTE: Dryer may be returned to the manual mode at any time
using the ‘Schedule On/Off and Enter’ button or by pressing
On/Off button. MANUAL MODE will appear on interface panel.
To reinstitute Schedule, push the ‘Schedule On/Off and Enter’
button again.
NOTE: Restart after the power interruption. Unit will be in
MANUAL MODE, refrigeration compressor, off when power is
restored after power interruption.
7. To reinstitute SCHEDULE RUNNING: push ‘Schedule On/
Off and Enter’ button.
IMPORTANT: Dryer must be energized 24 hours before
refrigeration compressor is started.
D.
Operating Check Points
1. Check that green Power-on light is illuminated.
2. Check that green Compressor-on light is illuminated if dryer
is on in the manual mode or it is a scheduled on time.
IMPORTANT: Refrigeration compressor must be restarted after
power interruption.
3. Check interface panel.
NOTE: Interface panel will scroll through three screens (Current
Time/Operating Status, Hours to Service, and Total Operating
Hours).
a. Verify that current time is correct.
b. Check HRS TO SERVICE: this indicates time remaining
until service is required; allow time for required
maintenance items to be ordered.
c. Check operating status:
MANUAL MODE - Dryer is either running continuously
(not being controlled by the scheduled on/off times) or
the refrigeration compressor has been shut off using the
‘On/Off’ button.
SCHEDULED MODE - Refrigeration compressor
is being turned on and off by the monitor per-programmed
schedule (see B.3. to set schedule).
d. Check Temperature indicator - indicator should read in
the green area.
