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LOW SOUND LEVELS
When noise is a concern, ceiling--suspended duct--free split systems
are the answer. The indoor units are whisper quiet. There are no
compressors indoors, either in the conditioned space or directly
over it, and there is none of the noise usually generated by air
being forced through ductwork.
When sound ordinances and proximity to neighbors demand quiet
operation, the 38HDR/QRR unit is the right choice: The advanced,
blow--through horizontal airflow design distributes air more evenly
over the coil.
SECURE OPERATION
If security is an issue, outdoor and indoor units are connected only
by refrigerant piping and wiring to prevent intruders from crawling
through ductwork. In addition, since 38HDR/QRR units can be
installed close to an outside wall, coils are protected from vandals
and severe weather.
FAST INSTALLATION
The small footprint of the outdoor units provide additional
benefits. Because they require minimal service and airflow
clearances, the outdoor units can be located virtually anywhere --
on the ground, roof, balcony, under a deck, or even mounted to an
outside wall.
The ceiling--suspended unit has its own mounting bracket for
easier installation. Since there is no need to run ductwork and only
piping and wiring is required between the indoor and outdoor
units, there is minimal disruption to customers in the workplace,
making this system ideal for retrofit applications.
SIMPLE SERVICING AND
MAINTENANCE
Saving time and money was a big consideration when designing
these systems.
On all indoor units, service and maintenance expense is reduced
due to easy--to--use cleanable filters and the ability to service the
unit from the bottom by removing the filter tracks.
On the outdoor units, a single panel provides immediate access to
the isolated compressor and control compartment, allowing a
service technician easy access to check the unit operation without a
loss of condenser airflow. In addition, the blow--through design of
the outdoor section means that dirt accumulates on the inside
surface of the coil. Coils can be cleaned from the outside using a
pressure hose and mild detergent without removing grilles or using
fin combs.
BUILT--IN RELIABILITY
Duct--free split system indoor and outdoor units are designed to
provide years of trouble--free operation.
The high wall indoor units include protection against freeze--up.
The condensing units and heat pumps are also protected. There is
a three minute time delay before the compressor will start.
An oversized accumulator on heat pumps, high and low pressure
switches ( loss of pressure switch on heat pumps), and compressor
internal overload protection will ensure a robust system that is ideal
for light commercial applications.
INDIVIDUAL ROOM COMFORT
Maximum comfort is provided because each space can be
controlled individually based on usage pattern. The
ceiling--suspended units are equipped with motorized louvers
which permits optimal room air mixing to eliminate hot and cold
spots for occupant comfort. In addition, year--round comfort can be
provided with heat pumps.
ECONOMICAL OPERATION
The duct--free split system design allows individual room heating
or cooling when required. There is no need to run large supply--air
fans or chilled water pumps to handle a few spaces with unique
load patterns. In addition, because air is moved only in the space
required, no energy is wasted moving air through ducts.
EASY--TO--USE CONTROLS
The ceiling--suspended units have electro--mechanical controls and
can be controlled by one of three user friendly thermostats that
mount on the wall.
FLEXIBILITY
A variety of accessories simplify the installation process and help
meet system requirements and weather considerations. Available
accessories are listed in the Standard Features and Accessories
section of this document.
AGENCY LISTINGS
All systems are listed with AHRI (Air Conditioning &
Refrigeration Institute), and UL.
40QAC/38HDR -- 40QAQ/38QR
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