Bryant 702B User Manual

Bryant Conditioners

SINGLE-PACKAGE
ELECTRIC COOLING UNITS with
Puron® (R-410A) Refrigerant

Model 702B
Sizes 024-060

2 To 5 Nominal Tons

Form No. PDS 702B.24.2

Single-Package Products with
Energy-Saving Features and Puron® refrigerant.
• Low Sound Levels
• 12 SEER
• Variable Speed Blower Option

FEATURES/BENEFITS

One-piece cooling unit with optional electric heater, low
installation cost, dependable performance and easy
maintenance.

EFFICIENT OPERATION
High-efficiency design

with a SEER (Seasonal Energy

Efficiency Ratio) of 12.0.
Puron® Environmentally Sound Refrigerant is Bryant’s unique
refrigerant designed to help protect the environment. Puron is an
HFC refrigerant which does not contain chlorine that can harm
the ozone layer. The most important advantage of Puron
refrigerant is that it has not been banned in future air
conditioning systems as the traditional refrigerant R-22 has
been. Puron refrigerant is in service in thousands of systems
proving highly reliable, environmentally sound performance.

Perfect Heat, Perfect Humidity™ featuring Variable Speed
Blower motors

provides better comfort and energy efficiency.

You can expect up to 30 times better dehumidification; a SEER
boost of up to 12.7; economical constant fan for less than $30 a
year, which provides improved indoor air quality and more even
temperatures from room to room; and reduced indoor noise due
to lower air velocity. In addition, you’ll realize improved installation
flexibility with 3 different airflow choices for best overall comfort.

Easy Installation—

Factory-assembled package is a compact,

fully self-contained, electric cooling unit that is pre-wired, pre-
piped, and pre-charged for minimum installation expense. 702B
units are available in a variety of standard cooling sizes with
voltage options to meet residential and light commercial
requirements. Units are light weight, and install easily on a
rooftop or at ground-level. The hightech, composite base pan
eliminates rust problems associated with ground level
applications.

DURABLE, DEPENDABLE COMPONENTS

Scroll Compressors are designed for high efficiency. Each
compressor is hermetically sealed against contamination to help
promote longer life and dependable operation. Vibration isolation
provides quiet operation. Compressors have internal high-
pressure and overcurrent protection.

CONVERTIBLE DUCT CONFIGURATION

—Unit is designed

for easy use in either downflow or horizontal applications. Each
unit is easily converted from horizontal to downflow.

Direct-drive multi-speed, PSC (permanent split capacitor)
blower motor

is standard on all 702B models.

Direct-drive,

PSC condenser-fan motors

are designed to help

reduce energy consumption and provide for cooling operation
down to 40°F outdoor temperature. Motormaster® II low ambient
kit is available as a field-installed accessory.

Corporate thermostats

include the Time Guard® II anti-short

cycle protection circuitry. If a non-Corporate thermostat without anti-
short cycle protection, is used the Time Guard II field installed anti-
short cycle kit is recommended.

Refrigerant system

is designed to provide dependability. Liquid

refrigerant filter driers are used to promote clean, unrestricted
operation. Each unit leaves the factory with a full Puron® refrigerant
charge. Refrigerant service connections are standard on the
suction and discharge lines for checking operating pressures.

Evaporator and condenser coils

are computer-designed for

optimum heat transfer and cooling efficiency. The evaporator coil
is fabricated from copper tube and aluminum fins and is located
inside the unit for protection against damage. The condenser coil
is internally mounted on the top tier of the unit. Copper fin coils
and pre-coated fin coils are available from the factory by special
order. These coils are recommended in applications where
aluminum fins are likely to be damaged due to corrosion. They are
ideal for seacoast applications.

High and Low Pressure Switches

give added safety and reliability

to the compressor.

Low sound ratings

ensure a quiet indoor and outdoor

environment with sound ratings as low as 72 dB.
(See page 3.)

UNIT 702B