Control Panel Functions
Control Panel:
This section explains the functions of the various components of the unit's control panel.
^ 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 systems 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.
^ Glow 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.
^ 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.