AAON RQ SERIES, Руководство пользователя

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9
Oil Type
Variable speed scrolls are charged with
polyolester (POE) oil. See the compressor
nameplate for the original oil charge. A
complete recharge should be approximately
four fluid ounces (118cc) less than the
nameplate value. Copeland™ Ultra 32
3MAF, available from Emerson
Wholesalers, should be used if additional oil
is needed in the field. Mobil Arctic
EAL22CC, Emkarate RL22, Emkarate 32CF
and Emkarate 3MAF are acceptable
alternatives.
Maximum Tilt Angle
Service personnel may be required to
maneuver a unit through a stairwell or other
cramped area that might require tilting the
unit. The maximum allowable tilt angles
from horizontal for individual compressors
(not tandem or trio applications) are
summarized below:
Max. tilt angle with compressor not running = 60°
Contaminant Control
Moisture levels should be maintained below
50 ppm for optimal performance.
A filter-
drier is required on all R-410A and POE
lubricant systems to prevent solid
particulate contamination, oil dielectric
strength degradation, ice formation, oil
hydrolysis, and metal corrosion
.
Molecular sieve and activated alumina are
two filter-drier materials designed to remove
moisture and mitigate acid formation. A
100% molecular sieve filter can be used for
maximum moisture capacity. A more
conservative mix, such as 75% molecular
sieve and 25% activated alumina, should be
used for service applications.
Discharge Check Valve
The compressor uses a shutdown valve
located in the discharge fitting. This check
valve is not a low-leak-back check valve and
will leak when pressure differential across
the check valve is low.
POE oil must be handled carefully
and the proper protective equipment
(gloves, eye protection, etc.) must be
used when handling POE lubricant.
POE must not come into contact with
any surface or material that might be
harmed by POE, and spills should be
cleaned up quickly with paper towels,
soap and water.
Caution