Winterizing Coils; Supply Fans - AAON V3-A Installation, Operation & Maintenance Instructions Manual

be taken in those areas to ensure a
proper rinse has been completed.
Warranty Protection – Step 2
Complete the coil chloride (salt) removal
following these steps:
1. CHLOR*RID® is a concentrate to be
used for both
applications at a 100:1 mix ratio OR
for severe coastal applications 50:1
mix ratio
(2.56 ounces of Chlor*rid to 1 gal of
water). Using a pump up sprayer, fill
to the appropriate level with potable
water and add the correct amount of
CHLOR*RID® salt remover leaving
room for the pump plunger to be
reinserted.
2. Apply CHLOR*RID® to all external
coil surfaces using a pressurized
pump up sprayer maintaining a good
rate of pressure and at a medium size
nozzle spray, (not a solid stream and
not a wide fan but somewhere in the
middle). Work in sections/panels
ensuring that all areas are covered and
kept wetted.
3. Generously soak coils by spraying
CHLOR*RID® directly on and into
the fin pack section. Let stand for 5 to
10 minutes keeping the area wetted.
Do not allow to dry before rinsing.
4. Using pressurized potable water,
(<100 psi), rinse the CHLOR*RID®
and dissolved chlorides/salts off of
the coils continuing to always work in
sections/panels.
5. Starting at the top of the coil, begin
rinsing the coil from side to side until
you reach the bottom. Repeat as many
times as is necessary to ensure all coil
sections/panels have been completed
and are thoroughly rinsed.
6. Reinstall all panels and tops that were
removed.
normal inland
with potable water,

Winterizing Coils

In some cases it may be necessary to
winterize water coils to prevent them from
freezing.
First completely drain the coils. There is a
drain located below the 'water in' connection
and a vent connection located above the
'water out' connection. Auxiliary drain
piping can also be added to exterior water
piping if yearly winterizing is necessary.
After the coil is drained, fill with an
antifreeze solution using a circulating pump.
Then thoroughly drain.

Supply Fans

CAUTION
Blower wheels must be inspected for
excessive dust build up periodically
and cleaned if required. Excessive
dust build up on blower wheels may
cause an unbalanced state; leading to
vibration and/or component failure.
Damages due to excessive dust build
up will not be covered under factory
warranty.
WARNING
Electric shock hazard. Shut off all
electrical power to the unit to avoid
shock hazard or injury from rotating
parts.
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