Hansen APP08 Operator Installation & Instruction Manual page 9

SYSTEM RESET – Resets the system to its pre-startup
settings. Actions performed by pressing this key consist of
clearing any error code(s), clearing air purge log minutes,
clearing air purge log cycles, clearing water drain log
minutes, clearing water drain cycles, stopping air and
water purging processes if active. The number of purge
points, the 60 MINUTE AIR PURGE LIMIT setting, and the
DISPLAY UNITS will not be changed.
STATUS – Pressing this key once displays the total
time that air has been released in minutes, the number
of cycles that air has been released, the total time that
water has been released in minutes, and the number of
cycles that water has been released. Pressing this key
again displays the water concentration in the purger
evaporator (except the water concentration is not displayed
during CONCENTRATING WATER mode, because the
concentration in this mode often exceeds the range of
the water concentration sensor). Pressing the key again
displays the temperature of the evaporator shell, the
temperature of the liquid inside the purger evaporator,
and the temperature of the plate heaters (see figure 4).
Another press of this key displays the pressures in the
low side and the high side of the purger. A final press of
this key returns the display to its normal messages. If
this key is not pressed a sufficient number of times to
return to the normal messages, it will automatically return
to the normal messages after 2 minutes.
RESET 4444 – Resets a 4444 alarm condition. See Section
7, Troubleshooting for an explanation of this alarm.
OK – This key will become active and its LED will illuminate
when the purger is ready to drain water to the customer
supplied container. The display window will also indicate
READY TO DRAIN. OPEN WATER PURGE SHUT-OFF VALVE
THEN PRESS "OK" BUTTON. When the operator opens the
water purge line shut-off valve and presses this key, the
purger will drain the accumulated water. When draining
is complete, the display window will indicate DRAINING
IS COMPLETE. CLOSE WATER PURGE SHUT-OFF VALVE
THEN PRESS "OK" BUTTON. When the operator closes
the water purge line shut-off valve and presses this key,
the LED will turn off and the purger will return to its normal
mode of collecting air and water.
PURGE POINT ADV. – Press this key to manually advance
to the next purge point. (This key is not applicable to
model APPC.)
9
APP-001b
APR 2007