Control Panel Functions

Control Panel:

Keypad Functions:

This explains the functions of the various components of the unit 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.
^ Low-side manifold gauge, when connected to an A/C system, this gauge shows the system low-side pressure.
^ High-side manifold gauge, when connected to an A/C system, this gauge shows the system high-side pressure.
^ Moisture indicator shows if the refrigerant is wet or dry.
^ Low-side valve, connects 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" position of keys on the keypad and resets the program mode.
^ FILTER-automatically recovers and evacuates to 57 kPa (17 inches Hg) vacuum 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 control memory.