Do not clean DX refrigerant coils with
hot water or steam. The use of hot
water or steam on refrigerant coils will
cause high pressure inside the coil
tubing and damage to the coil.
Do not work in a closed area where
refrigerant or nitrogen gases may be
leaking. A sufficient quantity of vapors
may be present and cause injury or
death.
Door compartments containing
hazardous voltage or rotating parts
are equipped with door latches to
allow locks. Door latch are shipped
with nut and bolts requiring tooled
access. If you do not replace the
shipping hardware with a pad lock
always re-install the nut & bolt after
closing the door.
PVC (Polyvinyl Chloride) and CPVC
(Chlorinated Polyvinyl Chloride) are
vulnerable to attack by certain
chemicals. Polyolester (POE) oils
used with R-410A and other
refrigerants, even in trace amounts, in
a PVC or CPVC piping system will
result in stress cracking of the piping
and fittings and complete piping
system failure.
Do not weld or cut foam panel with
plasma cutters or a cutting torch –
When burnt the foam produces
dangerous fumes.
Never attempt to open an access door
or remove a panel while the unit is
running. Pressure in the unit can
cause excessive force against the
panel.
Ensure that sufficient dampers will be
open to provide air path before fan is
allowed to run.
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