NOT RECOMMENDED
B
OK!
B
B
B
A
AA
AA
C
C
OK!
AAAAAA
OK!
A
AA
AA
C
C
SHIPPING
INSPECTION
Always keep the unit upright; laying the unit on its side or top
may cause equipment damage. Shipping damage, and
subsequent investigation is the responsibility of the carrier.
Verify the model number, specifications, electrical
characteristics, and accessories are correct prior to
installation. The distributor or manufacturer will not accept
claims from dealers for transportation damage or installation
of incorrectly shipped units.
CODES &
REGULATIONS
This product is designed and manufactured to comply with
national codes. Installation in accordance with such codes
and/or prevailing local codes/regulations is the responsibility
of the installer. The manufacturer assumes no responsibility
for equipment installed in violation of any codes or
regulations.
Rated performance is achieved after 72 hours of operation.
Rated performance is delivered at the specified airflow. See
Condensing Unit Specifications section for details
The United States Environmental Protection Agency (EPA)
has issued various regulations regarding the introduction
and disposal of refrigerants. Failure to follow these
regulations may harm the environment and can lead to the
imposition of substantial fines. Should you have any
questions please contact the local office of the EPA.
Outdoor units are approved for operation above 55°F in
cooling mode. Operation below 55°F requires the use of an
approved low ambient kit.
Damage to the unit caused by operating the unit in a
structure that is not complete (either as part of new
construction or renovation) is not covered under the
warranty.
INSTALLATION
CONSIDERATIONS
This unit can be located at ground floor level or on flat roofs.
G
ROUND
I
NSTALLATION
At ground floor level, the unit must be on a solid, level
foundation that will not shift or settle. To reduce the
possibility of sound transmission, the foundation slab should
not be in contact with or be an integral part of the building
foundation. Ensure the foundation is sufficient to support the
unit. A concrete slab raised above ground level provides a
suitable base.
C
LEARANCE
Minimum Airflow Clearance
APPLICATION
A
B
C
AA
Residential
10"
10"
18"
20"
Light Commercial
12"
12"
18"
24"
R
OOFTOP
I
NSTALLATIONS
If it is necessary to install this unit on a roof structure, ensure
the roof structure can support the weight and that proper
consideration is given to the weather-tight integrity of the
roof. Since the unit can vibrate during operation, sound
vibration transmission should be considered when installing
the unit. Vibration absorbing pads or springs can be installed
between the condensing unit legs or frame and the roof
mounting assembly to reduce noise vibration.
Special consideration must be given, to location of the
condensing unit in regard to structures, obstructions, other
units, and any and all other factors that may interfere with air
circulation.
Where possible, the top of the unit should be completely
unobstructed; however, if vertical conditions require
placement beneath an obstruction there should be a
minimum of 60 inches between the top of the unit and the
obstruction(s).
The specified dimensions meet requirements for air
circulation only. Consult all appropriate regulatory codes
prior to determining final clearances.
Copyright © 2019 DewAir Corporation
5
RHC18O-IM v2.11 Sep 4, 2019
