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538A
PREFERREDT SERIES AIR CONDITIONER
WITH PURONR REFRIGERANT
1- -1/2 TO 5 NOMINAL TONS
Fig. 1 --- 538A
NOTE: Read the entire instruction manual before starting the
installation.
TABLE OF CONTENTS
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SAFETY CONSIDERATIONS
Improper installation, adjustment, alteration, service, maintenance,
or use can cause explosion, fire, electrical shock, or other
conditions which may cause death, personal injury, or property
damage. Consult a qualified installer, service agency, or your
distributor or branch for information or assistance. The qualified
installer or agency must use factory- -authorized kits or accessories
when modifying this product. Refer to the individual instructions
packaged with the kits or accessories when installing.
Follow all safety codes. Wear safety glasses, protective clothing,
and work gloves. Use quenching cloth for brazing operations.
Have fire extinguisher available. Read these instructions
thoroughly and follow all warnings or cautions included in
Installation Instructions
PAGE
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2 - - 3
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literature and attached to the unit. Consult local building codes and
the current editions of the National Electrical Code (NEC)
NFPA70.
In Canada, refer to the current editions of the Canadian Electrical
Code CSA C22.1.
Recognize safety information. This is the safety- -alert symbol
When you see this symbol on the unit and in instructions or
manuals, be alert to the potential for personal injury. Understand
the signal words DANGER, WARNING, and CAUTION. These
words are used with the safety- -alert symbol. DANGER identifies
the most serious hazards which will result in severe personal injury
or death. WARNING signifies hazards which could result in
personal injury or death. CAUTION is used to identify unsafe
practices which may result in minor personal injury or product and
property damage. NOTE is used to highlight suggestions which
will result in enhanced installation, reliability, or operation.
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ELECTRICAL SHOCK HAZARD
Failure to follow this warning could result in personal injury or
death.
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may be more than 1 disconnect switch. Lock out and tag
switch with a suitable warning label.
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ENVIRONMENTAL HAZARD
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Failure to follow this caution may result in environmental
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pollution.
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Remove and recycle all components or materials (i.e. oil,
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refrigerant, etc.) before unit final disposal.
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INSTALLATION
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UNIT OPERATION AND SAFETY HAZARD
Failure to follow this warning could result in personal injury
or equipment damage.
Puron (R- -410A) refrigerant systems operate at higher
pressures than standard R- -22 systems. Do not use R- -22
service equipment or components on Puron refrigerant
equipment.
WARNING
WARNING
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Summary of Contents for Bryant PREFERRED 538A
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Page 1: Table Of Contents
NOTE is used to highlight suggestions which will result in enhanced installation, reliability, or operation. WARNING Fig. 1 --- 538A NOTE: Read the entire instruction manual before starting the ELECTRICAL SHOCK HAZARD installation. -
Page 2: Installation
Matching the Condensing Unit to an Indoor Unit The 538A018- -060 condensing units can be matched to corresponding indoor units. The 538A unit can be matched with under- -ceiling duct- -free and residential ducted fan coils and evaporator coils. Refer to separate indoor unit literature for more information. -
Page 3: Step 4 -Make Electrical Connections
S Wrap service valves with wet cloth or use a heat sink NOTE: Operating unit on improper line voltage constitutes abuse material. and could affect Bryant warranty. See Product Data. Do not install unit in a system where voltage may fluctuate above or below permissible limits. -
Page 4: Start- -Up
Connections to Duct Free Fan Coil Units to allow pressure equalization. The 538A units are designed for easy match- -up to 619C duct free fan Internal Current and Temperature Sensitive Overload coils. This unit provides 24 v power for the outdoor unit from the fan The control resets automatically when internal compressor motor coil. - Page 5 Crankcase Heater NOTE: Do not vent or de- -pressurize unit refrigerant to atmosphere. Remove and recover refrigerant following accepted The crankcase heater prevents refrigerant migration and practices. compressor oil dilution during shutdown when compressor is not operating. If the crankcase heater is de- -energized for more than 6 All units are shipped with the refrigerant charge listed on the hours, both compressor service valves must be closed.
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Page 6: Maintenance
A07402 Fig. 6 --- Troubleshooting the Cooling Cycle Catalog No. II538ANR ---02 E2009 Bryant Heating & Cooling Systems 7310 W. Morris St. Indianapolis, IN 46231 Printed in U.S.A. Edition Date: 01/09 Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.