Control Panel Functions

Keypad Functions:

This section explains the functions of the various components of the unit's control panel (see accompanying figure).

- Main Power Switch--Supplies electrical power to the control panel.

- Beeper--Emits an audible tone to alert the operator to unit operating functions.

- Digital Display--Shows the time programmed for vacuum and the weight of refrigerant programmed for recharging. Detailed instructions for programming this display are included in "Digital Display Functions" in this section.

- Low Side Manifold Gage--When connected to an A/C system, this gage shows the system's low side pressure.

- High Side Manifold Gage--When connected to an A/C system, this gage shows the system's high side pressure.

- Moisture Indicator--Shows if the refrigerant is wet or dry.

- Low Side Valve--Connects the the low side of the A/C system to the unit.

- High Side Valve--Connects the high side of the A/C system to the unit.

In addition to the number keys, the control panel contains special keys that accomplish specific operating functions (see accompanying figure).

- RECYCLE--Activates the recycling sequence.

- RECOVER--Activates the recovery sequence.

- SHIFT/RESET--Activates "shifted" positions of keys on the keypad and resets the program mode.

- FILTER--Automatically recovers and evacuates to 17 in. Hg. from the filter and low side of the unit.

- CHG.--Automatically charges the A/C system with the programmed amount of refrigerant.

- HOLD/CONT.--Interrupts the automatic cycle in the "HOLD" position, and then resumes functions in the "CONT" position. Press this button once for "HOLD," and again for "CONT."

- VACUUM--Activates the vacuum and automatic recycling sequence.

- ENTER--Enters programmed data into the unit's control memory.


DIGITAL DISPLAY FUNCTIONS
For information regarding the functions of the digital display, refer to the manufacturer's instructions.


MAINTENANCE
Refer to manufacturer's instructions for all maintenance procedures.