AAON V3-A Installation, Operation & Maintenance Instructions Manual page 8

WARNING
UNIT HANDLING
To prevent injury or death lifting
equipment capacity shall exceed unit
weight by an adequate safety factor.
Always test-lift unit not more than 24
inches high to verify proper center of
gravity lift point to avoid unit damage,
injury or death.
CAUTION
Failure to properly drain and vent coils
when not in use during freezing
temperature may result in coil and
equipment damage.
CAUTION
Rotation must be checked on all
MOTORS of 3 phase units at startup
by a qualified service technician. Fan
motor rotation should be checked for
proper operation. Alterations should
only be made at the unit power
connection.
WARNING
Do not use oxygen, acetylene or air in
place of refrigerant and dry nitrogen
for leak testing. A violent explosion
may result causing injury or death.
8
WARNING
WATER PRESSURE
Prior to connection of condensing
water supply, verify water pressure is
less than maximum pressure shown
on unit nameplate. To prevent injury
or death due to instantaneous release
of high pressure water, relief valves
should be field supplied on system
water piping.
WARNING
Always use a pressure regulator,
valves and gauges to control incoming
pressures when pressure testing a
system. Excessive pressure may
cause line ruptures,
damage or an explosion which may
result in injury or death.
CAUTION
To prevent damage to the unit, do not
use acidic chemical coil cleaners. Do
not use alkaline chemical coil cleaners
with a pH value greater than 8.5, after
mixing, without
aluminum corrosion inhibitor in the
cleaning solution.
WARNING
Some chemical
compounds are caustic or toxic. Use
these substances only in accordance
with the manufacturer's
instructions. Failure
instructions may result in equipment
damage, injury or death.
equipment
first using an
coil cleaning
usage
to follow