11
APP-001b
APR 2007
“Draining Water” will appear when removed water is
draining from the APP.
“Collecting Air/Water” will appear when the APP is operating
normally.
“Star tup Delay Mode” will appear for 10 minutes after the
APP evaporator shell cools to less than 40ºF (4ºC) and
the foul gas pressure exceeds 80 psig (5.5 barg).
“System Reset” will appear for 5 seconds after the System
Reset key has been depressed.
“2222 foul gas<80 psi” will appear when foul gas pressure
is lost and the display units are set to US.
“2222 foul gas< 5 bar” will appear when foul gas pressure
is lost and the diplay units are set to SI/metric.
“3333 evap temp>40 °F” will appear when the evaporator
temperature is too warm for effective air purging and the
display units are set to US.
“3333 evap temp> 4 °C” will appear when the evaporator
temperature is too warm for effective air purging and the
display units are set to SI/metric.
“4444 air purge>60min, Push RESET 4s to CLR” will appear
when air has been released for 60 minutes continuously
and the air purge limit is set to normal.
“7777 loss of lp liq” will appear when the liquid make-
up solenoid valve has been energized for 30 minutes
continuously.
ERROR HEATER FAULT will be displayed if the heaters are
on longer than 4 hours. This ERROR can only be cleared
by depressing the “SYSTEM RESET” key.
S e e S e c t i o n 7, Tr o u b l e s h o o t i n g f o r a d d i t i o n a l
information.
MAINTENANCE ITEM, RTC BACKUP
BATTERY
Replacement Batter y:
DURACELL DL2032 or RAYOVAC CR2032
The coin cell batter y, 3.0V Lithium, is used to provide
backup power to the real time clock. The batter y and
batter y low indicator are located in the lower right corner
of the PLC, see Figure 6. On certain models, the battery is
located underneath a control module. The battery should
be replaced
ever y 5 years
or when the LOW BATTERY
LED is illuminated.
Batter y Replacement Procedure
The power to the AP Purger must be ON.
Lift the batter y tab and press the batter y out with your
finger or non-metallic tool.
To install a new batter y, the batter y polarity “+” must be
to the top side. Lift the batter y tab and slide the batter y
into place. Verify the LOW BATTERY LED is not illuminated.
Procedure is complete.
DL2032
3V
LOW
BATTE
R
Y
CPU
PWR
DS7
DS6
DS5
RAM BACKUP
BATTERY
PLC
LOW BATTERY LED
BATTERY TAB
BATTERY REPLACEMENT
Figure 6
