AAON RN SERIES Installation Operation & Maintenance page 10

CAUTION
Electric motor over-current protection
and overload protection may be a
function of the Variable Frequency
Drive to which the motors are wired.
Never defeat the VFD motor overload
feature. The overload ampere setting
must not exceed 115% of the electric
motor's FLA rating as shown on the
motor nameplate.
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.
10
CAUTION
Rotation must be checked on all
MOTORS AND COMPRESSORS of
3 phase units at startup by a qualified
service technician.
compressors are directional and can
be damaged if rotated in the wrong
direction. Compressor rotation must
be checked using
discharge gauges. Fan motor rotation
should be checked
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.
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
release of high pressure water, relief
valves should be field supplied on
system water piping.
Scroll
suction and
for proper
to instantaneous