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538B
PREFERREDt SERIES HEAT PUMPS
WITH PURONr REFRIGERANT
1- -1/2 TO 5 NOMINAL TONS
Fig. 1 --- 538B
NOTE: Read the entire instruction manual before starting the
installation.
TABLE OF CONTENTS
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Installation Instructions
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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 a fire extinguisher available. Read these instructions
thoroughly and follow all warnings or cautions included in
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
1
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
2
property damage. NOTE is used to highlight suggestions which
2
will result in enhanced installation, reliability, or operation.
3
!
3
4
ELECTRICAL SHOCK HAZARD
5
Failure to follow this warning could result in personal injury
7
or death.
Before installing, modifying, or servicing system, main
electrical disconnect switch must be in the OFF position.
There may be more than 1 disconnect switch. Lock out and
tag switch with a suitable warning label.
!
ENVIRONMENTAL HAZARD
Failure to follow this caution may result in environmental
pollution.
Remove and recycle all components or materials (i.e. oil,
refrigerant, etc.) before unit final disposal.
WARNING
CAUTION
.
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Related Manuals for Bryant PREFERRED 538B Series
Summary of Contents for Bryant PREFERRED 538B Series
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Page 1: Table Of Contents
538B PREFERREDt SERIES HEAT PUMPS WITH PURONr REFRIGERANT 1- -1/2 TO 5 NOMINAL TONS Installation Instructions 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. -
Page 2: Installation
INSTALLATION After system installation is complete, see the Refrigerant Charging section in this document to check and/or adjust refrigerant charge. WARNING 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. -
Page 3: Complete Refrigerant Piping Connections
NOTE: Accessory wind baffles should be used on all units with 4. Connect and braze liquid refrigerant tube to the filter drier. accessory low ambient temperature control. Field- -fabricated snow or ice stands may be used to raise unit when operation will be required during winter months. -
Page 4: Start- -Up
OFF and indoor blower has NOTE: Operating unit on improper line voltage constitutes abuse stopped. and could affect Bryant warranty. See Product Data. Do not install unit in a system where voltage may fluctuate above or below Power Wiring permissible limits. -
Page 5: Service
SERVICE CAUTION WARNING UNIT DAMAGE HAZARD Failure to follow this caution may result in equipment ELECTRICAL SHOCK HAZARD damage or improper operation. Failure to follow this warning could result in personal injury The unit coils hold only the factorydesignated amount of or death. - Page 6 Service Valves The service valves in the outdoor unit come from the factory frontseated. This means the refrigerant charge is isolated from the line- -set connection ports. To prevent damage to the valve, use a wet cloth or other accepted heat sink material on the valve before brazing.
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Page 7: Maintenance
If the indoor temperature is below 70_F (21_C), or the outdoor Recovery cylinder service pressure rating must be 400 temperature is not in the favorable range, adjust charge for line set psig, DOT (Department of Transportation) 4BA400 or length above or below 15 ft (4.6 m) only. Charge level should then DOT BW400. - Page 8 coil sections. Dirt and debris may pass through first section, 2. Using a garden hose or other suitable equipment, flush coil become trapped between the row of fins and restrict condenser from the outside to remove dirt. Be sure to flush all dirt and airflow.
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Page 9: Troubleshooting
TROUBLESHOOTING LEGEND — Normally Closed ODT — Outdoor Thermostat NOTE: For systems with indoor units equipped with microprocessor control, see separate controls, service, and troubleshooting manual. A07435 Fig. 10 --- Troubleshooting the Cooling Cycle... - Page 10 A07436 Fig. 11 --- Troubleshooting the Heating Cycle Always Ask For E2010 Bryant Heating & Cooling Systems 7310 W. Morris St. Indianapolis, IN 46231 Printed in U.S.A. Edition Date: 09/10 Catalog No. II538BNR ---04 Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
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