11
2.6 IMPORTANCE OF PROPER INDOOR/OUTDOOR MATCH-UPS
To assure many years of reliable operation and optimum customer comfort and to assure
the outdoor unit warranty remains valid, an air-handler model should be selected that is
properly matched to the outdoor unit. This is especially critical for heat pump systems
to assure proper refrigerant charge balance between the cooling and heating modes.
The recommended approach is to select an air-handler model that has an AHRI match
with the outdoor unit. Refer to the AHRI directory at
www.ahridirectory.org
to confirm
the air-handler and outdoor unit are a certified combination in the AHRI Directory.
2.7 IMPORTANCE OF QUALITY INSTALLATION
A quality installation is critical to assure safety, reliability, comfort, and customer satisfac-
tion. Strict adherence to applicable codes, the information in this installation manual, the
outdoor unit installation manual, and the thermostat installation manual are key to a
quality installation. Read the entire instruction manuals before starting the installation.
IMPORTANT:
This product has been designed and manufactured to meet certified AHRI
capacity and efficiency ratings with the appropriate outdoor units. However, proper
refrigerant charge, proper airflow, and refrigerant line sizing are critical to achieve opti-
mum capacity and efficiency and to assure reliable operation. Installation of this prod-
uct should follow the manufacturer’s refrigerant charging and airflow instructions located
in the outdoor unit installation instructions and the charging chart label affixed to the out-
door unit. Failure to confirm proper charge and airflow may reduce energy efficiency
and shorten equipment life.
The equipment has been evaluated in accordance with the Code of Federal
Regulations, Chapter XX, Part 3280.
Install the unit in accordance with applicable national, state, and local codes. Latest edi-
tions are available from: “National Fire Protection Association, Inc., Batterymarch Park,
Quincy, MA 02269.” These publications are:
• ANSI/NFPA No. 70-(Latest Edition) National Electrical Code.
• NFPA90A Installation of Air Conditioning and Ventilating Systems.
• NFPA90B Installation of warm air heating and air conditioning systems.
Install the unit in such a way as to allow necessary access to the coil/filter rack and
blower/control compartment.
