26
11.
Check for signs of hot spot/discoloration on
power cables.
12.
Check the DC bus voltage.
13.
Check all communication cables are secure and
tight.
14.
Check all electrical modules are secure.
15.
Check system refrigerant charge and verify the
system is still fully charged.
Once a Year
Repeat items 1 through 15 listed and continue with
the following.
16.
Check the condition of the condenser fluid for
algae and scale. If contamination is present, rod
out the tubes and back flush condensers before
reconnecting pipes.
17.
Check operation of all system safety devices and
interlocks.
18.
Check physical condition of all exposed circuit
boards for dust build-up and clean if necessary.
19.
Check calibration of temperature/pressure
sensors.
20.
Check operation of the inlet guide vane (IGV)
assembly.
Once Every 5 years
Repeat items 1 through 20 and continue with the
following.
21.
Replace compressor capacitor set.
Maintenance
Cleaning the Operator Interface
Use of abrasive cleaners or solvents may damage the
window. Do not scrub or use brushes. To clean the
display window:
1.
Disconnect power from the terminal at the
power source.
2.
Using a clean sponge or a soft cloth, clean the
display with a mild soap or detergent. If paint or
grease splash is present, remove before drying
by rubbing lightly with isopropyl alcohol.
Afterward, provide a final wash using a mild
soap or detergent solution. Rinse with clean
water.
3.
Dry the display with a chamois or moist cellulose
sponge to avoid water spots.