AAON RN Series User Manual

77
Do not allow water containing any form of
chlorides to enter this heat exchanger.
Common forms of chlorides include:
1. Sea water mist entering an open cooling
tower system.
2. Contaminated makeup water containing
salt water.
3. Disinfecting the water loop with solutions
containing sodium hypochlorite.
Chlorides will result in a premature failure of
the condenser.
Failure of the condenser as a result of
chemical corrosion is excluded from
coverage under AAON warranties and the
heat exchanger manufacturer warranties.
Failure of the condenser will allow water to
enter the refrigerant circuit and will cause
extensive damage to the refrigerant circuit
components. Any damage to the equipment
as a result of condenser failure from chemical
corrosion due to the fluid in the condenser is
excluded from coverage under AAON
warranties and the heat exchanger
manufacturer warranties.
Freezing Water in the Heat Exchanger
This product contains one or more
refrigerant-to-water heat exchangers. A
refrigerant-to-water heat exchanger contains
refrigerant in one passage and water in
another passage. Water is subject to freezing
at 32°F. When water freezes in a heat
exchanger significant forces are exerted on
the components of the heat exchanger where
the water is confined.
Failure of the condenser due to freezing will
allow water to enter the refrigerant circuit and
will cause extensive damage to the
OPEN LOOP APPLICATIONS
Coated brazed plated refrigerant-to-
water heat exchangers are
recommended with all open loop
applications. Failure to use a coated
heat exchanger may result in
premature failure of your system and
possible voiding of the warranty.
WARNING
Cleaning the cooling tower or
condenser water loop with harsh
chemicals such as hydrochloric acid
(muriatic acid), chlorine or other
chlorides, can damage the refrigerant-
to-water heat exchanger. Care must
be taken to avoid allowing chemicals
to enter the refrigerant-to-water heat
exchanger. See Appendix A - Heat
Exchanger Corrosion Resistance for
more information.
CAUTION
WATER FREEZING
Failure of the condenser due to
freezing will allow water to enter the
refrigerant circuit and will cause
extensive damage to the refrigerant
circuit components. Any damage to
the equipment as a result of water
freezing in the condenser is excluded
from coverage under AAON
warranties and the heat exchanger
manufacturer warranties.
WARNING

AAON RN Series Specifications

General

Category	Heat Pump
HSPF	Up to 10.0
Refrigerant	R-410A
Compressor Type	Scroll
Efficiency	High
Series	RN
Voltage Options	208-230/460V
Unit Weight	Varies with model
Dimensions	Varies with model