5
2.0 GENERAL INFORMATION
3.0 UNIT SPECIFICATIONS
General Information Unit Specications
to be removed. A heat gain calculation also
calculates the extra heat load caused by sunlight
and by humidity removal. These factors must be
considered before selecting a heat pump system to
provide year-round comfort. The Air Conditioning
Contractors of America (ACCA) Manual J method
of load calculation is one recognized procedure for
determining the heating and cooling load.
After the proper equipment combination has
been selected, satisfying both sensible and
latent requirements, the system must be properly
installed. Only then can the system provide the
comfort it was designed to provide.
There are several factors that installers must
consider.
• Outdoor unit location
• Indoor unit blower speed and airflow
• Proper equipment evacuation
• Supply and return air duct design and sizing
• Refrigerant charge
• System air balancing
• Diffuser and return air grille location and sizing
IMPORTANT: Excessive use of
elbows in the refrigerant line set can produce
excessive pressure drop. Follow industry
best practices for installation. Installation
and commissioning of this equipment is to
be performed by trained and qualified HVAC
professionals. For technical assistance, contact
your Distributor Service Coordinator.
2.5 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 or indoor coil/furnace combination
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 or indoor coil and gas furnace 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.
2.6 Checking Product
Received
Upon receiving unit, inspect it for any shipping
damage. Claims for damage, either apparent or
concealed, should be filed immediately with the
shipping company. Check model number, electrical
characteristics, and accessories to determine if they
are correct. Check system components (indoor coil,
outdoor unit, air handler/furnace, etc.) To make sure
they are properly matched.
2.7 Compressor Break-
In Notice
Prior to agency testing, the system must be
operated for 20 hours at 115
o
F [46.1
o
C] outdoor
ambient temperature with 80
o
F [26.7
o
C] dry
bulb/75
o
F [23.9
o
C] wet bulb indoor ambient
temperature to break the compressor in.
(-)P1724AJVCA
(-)P1736AJVCA
(-)P1748AJVCA
(-)P1760AJVCA
AVAILABLE MODELS
3.1 Model Number Nomenclature and Available Models
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