AIRCONDITIONER
WITH PURON
( R-410A)
QUICK
REFERENCE
GUIDE
Puron refrigerant
operates
at 50-70
percent
higher pressures
than R-22.
Be sure that servicing
equipment
and replacement
components
are
designed
to operate with Puron.
Puron refrigerant
cylinders
are rose colored.
•
Puron refrigerant
cylinders
manufactured
prior to March
1. 1999, have a dip tube that allows liquid to flow out of cylinder
in
upright
position.
Cylinders
manufactured
March 1, 1999. and later. DO NOT have a dip tube and MUST
be positioned
upside
down to allow liquid to flow.
•
Recovery
cylinder
service pressure
rating must be 400 psig. DOT 4BA400
or DOT BW400.
•
Puron systems
should be charged
with liquid refrigerant.
Use a commercial-type
nmtering
device in the manifold
hose.
•
Manifold
sets should be 750 psig high side and 200 psig low side with 520 psig low side retard.
•
Use hoses with 750 psig service pressure
rating.
•
Leak detectors
should be designed
to detect HFC refrigerant.
•
Puron,
as with other HFCs. is only compatible
with POE oils.
•
Vacuum
pumps will not remove moisture
from oil.
•
Only use factory-specified,
liquid-line
filter driers with rated working
pressures
no less than 600 psig.
•
Do not install a suction-line
filter drier in liquid
line.
•
POE oils absorb moisture
rapidly.
Do not expose
oil to atmosphere.
•
POE oils may cause damage to certain plastics and roofing
materials.
•
Wrap all filter driers and service valves with ,,vet cloth when brazing.
•
A Puron liquid-line
filter drier is required
on every unit.
•
Do not use an R-22 TXV.
•
Never
open system to atmosphere
while it is under a vacuum.
•
When system
must be opened
for service,
break vacuum
with dry nitrogen
and replace filter driers.
•
Do not vent Puron into the atmosphere.
•
Observe
all warnings,
cautions,
and bold text.
•
Do not leave Puron suction-line
driers in place for more than 72 hrs.
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