Bryant 502A - Manual

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Page 2 – TABLE OF CONTENTS; Page; MODEL NUMBER NOMENCLATURE; No factory-installed electric heaters; AB —
Page 3 – PHYSICAL DATA; OPERATING WEIGHT DISTRIBUTION AND
Page 4 – FIELD-INSTALLED ACCESSORIES; UNIT
Page 5 – BASE UNIT DIMENSIONS; Unit Component Locations
Page 6 – PERFORMANCE DATA; See Legend on page 7.
Page 7 – EVAPORATOR FAN PERFORMANCE; belt drive IFM performance, see table on page 8.
Page 8 – BELT DRIVE EVAPORATOR FAN PERFORMANCE; Pulley setting must be adjusted to limit cfm to 450 cfm/ton; CONDENSER FAN PERFORMANCE; Above fan performance is based upon coil and deducted casing
Page 9 – CONTROLS; b. Compressor contactor is energized to star t compressor; Continuous Fan Operation —; The thermostat can be set for; ELECTRICAL DATA; ELECTRIC HEATER DATA
Page 10 – TYPICAL WIRING SCHEMATICS; ELECTRIC HEATER
Page 14 – Field Splitting Instructions —; cal codes to ensure proper compliance.; National Electrical Code
Page 15 – GUIDE SPECIFICATIONS; INDOOR PACKAGED UNIT
Page 16 – Time Guard

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Form No. PDS 502A.24.1

HORIZONTAL INDOOR
SINGLE PACKAGE
COOLING UNITS

Single Package Cooling Units Featuring:

• compact design
• flexibility
• easy maintenance
• high quality and reliability
• quiet and efficient scroll compressor technology

FEATURES/BENEFITS

All in one package — high cooling efficiency, installation con-
venience, ease of accessibility for time-saving maintenance.

SPACE AND COST-SAVING DESIGN —

Model 502A is spe-

cifically designed to provide the building owner with behind the
scenes cooling, because it installs inside the ceiling. That’s
why we call it the Bryant Ceiling

PAC

unit. The compact design

and low silhouette enable it to fit easily and securely above the
conditioned space. Single package construction makes it easy
to install with minimal time and cost.

APPLICATION FLEXIBILITY —

If desired for par ticular appli-

cations, the unit can also be installed as a split system with the
condenser section mounted horizontally. Centrifugal fans per-
mit ducting of both evaporator and condenser air.

QUIET OPERATION —

Commercial end users appreciate the

extra comfor t of quiet operation. Bryant engineers met the

challenge by specifying heavy insulation, vibration-resistant
construction and operating components that function at low
noise levels, all of which keep system sound at a minimum
level.

EASY MAINTENANCE —

When it comes to maintenance, the

502A unit rates high in accessibility. Indoor location is ideal for
the maintenance technician, and five access panels, easily
removed, provide quick and convenient access to all compo-
nents when needed. As an added plus, all required service/
maintenance access can be from one side allowing the unit to
be located against a wall or ceiling plenum obstruction, an
obvious space-saving idea.

BRYANT QUALITY AND RELIABILITY —

The Bryant 502A

Ceiling

PAC

units have much to offer the cost- and efficiency-

conscious commercial owner. Every unit is thoroughly run
tested at the factory and equipped with safety controls
designed to monitor and protect over the life of the unit.

SCROLL COMPRESSOR TECHNOLOGY —

Scroll compres-

sors are designed for high efficiency and are internally spring
mounted to minimize vibration noise. Each compressor is
hermetically sealed against contamination to promote longer
life and dependable operation. Scroll compressors are
standard on all units.

Model 502A

Ceiling

PAC

2 to 5 Tons

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Summary

Page 2 - TABLE OF CONTENTS; Page; MODEL NUMBER NOMENCLATURE; No factory-installed electric heaters; AB —

2 TABLE OF CONTENTS Page Features/Benefits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1Model Number Nomenclature . . . . . . . . . . . . . . . . . . . . . . . . . 2ARI Capacity Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2Physical Data . . . . . ....

Page 3 - PHYSICAL DATA; OPERATING WEIGHT DISTRIBUTION AND

3 PHYSICAL DATA LEGEND *Shipping weights include base unit plus packaging.†If components are to be split, additional refrigerant will be needed.**Use Type L copper only. NOTE: If components are to be split, the maximum length of refrigerant tubing to be used is 50 equivalent ft, assuming components ...

Page 4 - FIELD-INSTALLED ACCESSORIES; UNIT

4 FIELD-INSTALLED ACCESSORIES Thermostat and Subbase — Attractive wall-mounted 24-v accessory provides precise temperature control. Automatic andManual changeover models available. A thermostat subbase isavailable that works with Cycle-LOC™ circuitry. If a safetydevice trips, compressor locks out an...