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Control Panel Features
LCD Display
The Liquid Crystal Display (LCD) display provides
the unit operator with continual updates of the
status. In addition, the display will prompt the
technician for the user input needed to continue
operation. The LCD shows error codes for rapid
diagnosis of abnormal conditions.
The display is divided into five fields which aid the
technician in rapidly reading information.
1. Weight - Shows the weight of refrigerant being
processed in each mode.
2. Time (MINS) - Shows the time set for Vacuum.
Timer will count down to display the time left.
3. Purge– Located in the bottom right corner of
display. A "Y" in this field indicates non-
condensable gases such as air are present in
the storage tank. The unit will purge automati-
cally next time the unit is turned on when the
"Y" is displayed. An "N" indicates non-
condensable gases are below the set limit. An
"E" indicates the unit purged for fifteen (15)
seconds and non-condensable gases are still
present. This is a safety feature which prevents
excess purging when a malfunction occurs
somewhere in the system. See the Purging Non
-Condensable Gas section for further details.
4. Option - Displays the Option number of the cur-
rent operation.
5. Status Line - Displays programming commands
and informs the user of current status of the
unit.
Available Functions:
The main menu allows you to access the following
functions.
1. Option 1 - Recover, is used to recover and
recycle refrigerant from an automobile A/C
system. This Option is most often used prior to
opening an A/C system to atmosphere to
replace a system component.
2. Option 2 - Vacuum, is used to vacuum air/
moisture from a system previously opened to
the atmosphere. This Option will then proceed
to recharge the A/C system. This Option also
allows the technician to verify the A/C system
will hold a vacuum for a certain length of time.
3. Option 3 - Charge Only, adds refrigerant to an
A/C system.
4. Option 4 - Full Cycle, performs a complete
recovery, recycling, evacuating and charging of
an automobile A/C system.
5. Option 5 - Oil injection, is used to inject oil into
the Automobile's A/C system. (37887 and
37888) Hybrid Hose Flush, is used to clear the
hoses of oil before using the unit on a hybrid
A/C system. DOES NOT APPLY TO 37837.
6. Option 6 - Tank Refill, is used to add new
refrigerant to the storage tank.
7. Option 7– Vehicle Oil Flush, is used to flush the
oil from the vehicles A/C system.
8. Option 8 - Refrigerant Management System,
gives the technician access to information
about refrigerant use to date.
9. Option 9– Set-up, is used to access settings like
time and date, Scale calibration and system
information.
Function Keys / Numeric keypad
The Function Keys are used to enter data into the
system in a variety of modes.
UP ARROW– This key allows you to scroll up
through the menu
Down ARROW– This key allows you to scroll down
through the menu
Left ARROW - This key allows you scroll left
through the menu
Right ARROW - This key allows you to scroll right
through the menu
Numeric Key pad– these keys are used to select
desired time and weight and entering the filter
codes.
START- Press START to begin a selected opera-
tional mode.
ENTER– Press ENTER to enter the desired function
or setting
RESET- Press RESET to cancel the current opera-
tion. The RESET may have to be pushed more than
once to return to "Main Menu"
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