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Performance Specifications
(
cont.
)
2.01 eQuIpment
A. General:
Factory-assembled, single-piece heating and/or
cooling unit. Contained within the unit enclosure
shall be compressor, coils, fans and fan motor, heat-
ing means, controls, all wiring and piping, and a full
refrigerant charge (R410A).
B. Chassis:
The chassis shall be a factory-assembled, single
piece heating and/or cooling unit, that is simple to
install and operate. Just slide the chassis into a wall
sleeve, plug it into an outlet, and operate after instal-
lation. The chassis dimensions shall not exceed 42
in. wide and 16 in. high with room cabinet in place.
The chassis shall consist of the following functional
sections and components:
1. Operating Characteristics:
Chassis shall be capable of starting and running at
115 °F ambient outdoor temperature per maximum
load criteria of ARI Standard 310/380.
2. Electrical:
Chassis shall be equipped with a 58 in. power cord.
The chassis current draw shall be specified on the
chassis nameplate and match electrical require-
ments specified on the Contract drawing schedule
and specifications.
The power cord plug configuration shall conform to
NEMA standards and the rating shall support the
current draw of the electric resistance heater.
For 265V installations, UL codes require the use of
an electrical equipped subbase for power cord usage
or hardwire conduit for non-corded installations.
C. Airflow System:
The airflow system shall consist of one permanent
split-capacitor, direct-drive permanently lubricated,
two-speed fan motor for the indoor and outdoor
fans. The outdoor fan shall be a dynamically bal-
anced, corrosion resistant polymer multi-blade
axial flow design, with integrated slinger ring. The
indoor fan shall be a dynamically balanced, poly-
mer, reverse curve blower wheel, to assure uniform
air distribution. The Fan Motor shall be of an
enclosed design to reduce the effects of moisture
and corrosion.
D. Compressor and Refrigerant:
The rotary-type Compressor shall be fully hermetic
with internal and external vibration isolation. The
refrigeration system will be sealed and contain a full
refrigerant charge (R410A).
E. Coils:
Condenser and evaporator coils to be constructed of
high-efficiency, lanced sine wave enhanced alumi-
num fins and seamless axial grooved copper tubing,
necessary to achieve EER and COP rating, as speci-
fied on the chassis name plate.
F. Factory-Installed Electric Heater:
The factory-installed, open coil type, electric heater
is standard in heat/cool and heat pump chassis. The
electric heater shall contain both an automatic reset
and a one-shot over temperature protection device.
The heating capacity of the electric heater shall be as
identified on the Contract drawing schedule and in
the specifications.
