Product Manual

Polar Air Rotary Screw Compressors
21
Start-Up
1. Slightly open drain valve on air/oil
separator tank to drain any condensed
water. Failure to do this shortens service
life of lubricating oil and destroy the
bearings. Be sure to close valve after
draining water.
2. Check “Emergency Stop” function by
pressing the button shortly after pressing
ON button.
3. Do not operate the machine if there is any
abnormal noise or vibration during
operation. Call Polar Air service for
assistance.
4. Press ON button to begin operation. After
unit starts, a time delay of approximately 5
seconds occurs and a “LOADING”
message displays on PLC screen. This
means the pump is operating and the
compressor is building pressure.
5. Monitor display panel for normal readings
such as amp draw and voltage. Push OFF
button if there are any abnormal sounds,
vibration or oil leakage.
6. Check that oil exhaust temperature is
maintained between 160˚ - 190˚ F
(70˚ - 88˚ C). Cooling fan cycles as
needed to cool oil temperature.
7. After OFF button is pressed, the motor
continues to run for approx. 10-15 seconds
and blow-down valve automatically
discharges pressure from air/oil separator
tank. This is to prevent the air compressor
from stopping under heavy-load.
8. Record these instrument readings on a
regular basis and retain for future
reference:
 Voltage
 Current
 Air pressure
 Air exhaust temperature
 Oil level
 Maintenance parameter
Power Outages
Once power is restored after a
power outage the controls will show a “Power
Fault” error. Press the Enter button to reset and
restart the compressor.
Storage
1. If the machine is stopped for over three
weeks:
a) Wrap electrical equipment such as the
control panel with plastic or oil paper
to avoid condensation.
b) Completely drain water in the oil
cooler, the back cooler and the oil/air
separator tank.
c) Make sure any unsafe conditions are
clearly stated or repaired.
2. If the machine is not run for more than two
months:
a) Seal all ports to prevent moisture or
dust accumulation.
b) Wrap safety valve & control panel
with oil paper or an equivalent to avoid
rust.
c) Replace lubricating oil then run
machine for 30 minutes. Drain
condensed water in the oil/air separator
tank and the oil cooler 2-3 days later.
d) Move machine to a clean, dry place.
Restarting Procedure
1. Remove any wrappings from system
components.
2. Ensure electric motor is properly insulated.
3. Perform initial checks then follow
procedures for start up.
Maintenance
Safety Steps
To avoid shock and serious
personal injury, disconnect,
tag and lock out power source
then release all pressure from
the system before attempting
to install, service, relocate or perform ANY
maintenance.
To avoid serious personal
injury, when performing
service in any enclosure large
enough to hold a man, inform
others then be sure to tag and
keep open any access doors. Before closing and
latching access doors, make sure all
persons are
clear from enclosure.