Gardner Denver VST110 Operating And Service Manual page 26

Setting the Unload and Load Pressure
After setting the Target Pressure, set the Unload and Load Pressures values in a similar fashion.
The Unload pressure is the third item in the Operation Adjustment sub-menu so press the Down
button to navigate to the Unload Pressure setting. The Unload Pressure will control at
which pressure the compressor unload and stops.
OPERATION ADJUSTMENT
UNLOAD PRESSURE
(SELECT PARAMETER)
The Load pressure is the fourth item in the Operation Adjustment sub-menu so press the Down
button to navigate to the Load Pressure setting. The Load Pressure will control at which
pressure the compressor will startup again after unloading.
OPERATION ADJUSTMENT
LOAD PRESSURE
(SELECT PARAMETER)
Operation at excessive discharge air pressure can cause personal injury or
damage to equipment. Do not adjust the full discharge air pressure above the
maximum stamped on the unit nameplate.
Operating Mode - Refer to Section 4, page 28 and Controller Manual 13-17-600 for detailed
9.
information on the control system.
10. Enclosure - Check for damaged panels or doors. Check all screws and latches for tightness. Be
sure doors are closed and latched.
STARTING THE UNIT - Observe the following starting procedures.
Unit Cold - If the unit is fitted with water-cooled heat exchangers, fully open water inlet valve(s). If the
unit is located in a cold environment (e.g., ambient temperature below 40°F, 5 °C), the required external
heat source must be energized prior to start. Press the red "STOP/RESET" button to clear any conditions
(e.g., "Loss of Power" when electrical system was energized) and start the unit by pushing the green
"START" button. Since the unit is equipped with a minimum pressure valve (80 psig, 5.5 bar), no special
procedure to maintain minimum reservoir pressure is required.
110 PSI
100 PSI
13-17-605 Page 25