SERVICE”. Press [ENTER] to go directly to step
7 below, Press [AUTO] to perform the following
steps.
3. The display shows “OIL FILTER” and the hours re-
maining until the next advisory are displayed on
the bottom line, Press [ENTER] to go to step 4
without any change.
Press [AUTO] only if the oil filter change has been
performed early. This will reset this timer back to
the oil filter interval (see step 19).
4. The display shows “OIL CHANGE and the hours
remaining until the next advisory are displayed on
the bottom line. Press [ENTER] to go to step 5
without any change.
Press [AUTO] only if the oil change has been per-
formed early. This will reset this timer back to the
oil change interval (see step 20).
5. If any service advisories are in effect (yellow AD-
VISORY indicator is on), they will be displayed.
Press [ENTER] to clear the advisory.
6.
The display will indicate “ENTER TO SETUP -
RESET TO EXIT”. This indicates that all the main-
tenance adjustments have been completed.
Press [STOP/RESET] to go back to the READY
state, or press [ENTER] to go on to step 7.
7. The top line shows “DISPIAY UNITS. The bot-
tom line indicates “ENGLISH” (PSIG, Fahrenheit)
or “METRIC (Bars, Celsius) units of measure-
ment, Select the desired display units and press
[ENTER] to proceed.
8. The top line displays “NUM OF SEQ UNITS. The
bottom line indicates a number in the range of one
through eight. This will be factory set at “l”. Set
this to a number corresponding to the number of
compressors that are currently installed on this air
system that also have AUTO SENTRY-ES con-
trollers. It should be noted that all” AUTO
SENTRY-ES compressors on the system must
have the same number programmed hereto oper-
ate correctly in SEQUENC-E mode.
NOTICE
Setting the value instep 8 to one indi-
cates that no sequencing is to take
place. Consequently, steps 9, 10, and
11, which relate to sequencing, are
skipped by the
“AUTO SENTRY-
ES”; Programming commences at
step 12.
9. The top line displays “UNIT NUMBER”, The bot-
tom line will again indicate a number of one
through eight and be factory set at “1”. Each
“AUTO SENTRY-ES in a sequenced system
must have a unique number here. The sequence
mode will not function if two or more compressors
have the same UNIT NUMBER. Use low numbers
for the most efficient machine-to-machine com-
munications. Example: Use 1, 2, and 3 for a three
compressor installation,
10. The top line displays “TRANSFER INTERVAL”.
The bottom line indicates a number of hours from
1to 5000. It is factory set at 24. This is the number
of hours that this machine will stay in the role of
‘[master” or “lead compressor. Normally it is de-
sirable to set this to the same value on all se-
quenced units to equalize running hours.
11. The top line displays "LAG START DELAY”. The
12.
13,
14.
bottom line indicates a number from 15 to 600 se-
conds. It is factory set at 30. This is the length of
time this machine will wait before starting when
the pressure drops below the reset point, Set this
to the same value for all sequenced units. Its set-
ting will depend on the amount of air storage vol-
ume in the system. Too small a number will result
in more compressors being started than is neces-
sary to satisfy demand. See “SEQUENCING
COMPRESSORS WITH THE AUTO SENTRY-
ES” for more details on optimizing a sequenced
installation.
The top line displays “BLOWDOWN TIME. The
bottom line indicates a time between 5 and 20 min-
utes. It is factory set at 10 minutes. This is the
minimum time interval between blowdowns. A
longer blowdown time minimizes wasteful dump-
ing of compressed air when loading is likely to oc-
cur in a short time. Longer periods also have been
shown to prevent oil foaming.
The top line displays “AUTO TIME. The bottom
line indicates a time between 5 and 20 minutes.
It too, is factory set at 10 minutes. Its function is
to prevent frequent motor starting, and to allow the
motor a ‘cool-down’ period before stopping.
The top line displays “START TIMER”. The bot-
tom line indicates a time between 3 and 10 se-
conds. This is the time that the controller spends
in the unloaded ‘start’ mode. On units with facto-
ry-furnished wye-delta starters, this is the time
that the starter is in its ‘start’ mode. Set this for the
time when the motor reaches its maximum speed.
On all other starter types, this should be set for the
time that the motor takes to reach full speed. Ifthe
setup switch is in the up position, the controller re-
turns to the READY state after this adjustment.
13-9/10-641 Page 22
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