Bryant 123A Installation Instructions Manual
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Bryant 123A Installation Instructions Manual

Legacy series air conditioners with puronr refrigerant sizes 018 to 060 1--1/2 to 5 nominal tons
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MODELS 123A / 124A
LEGACYT SERIES AIR CONDITIONERS
WITH PURONR REFRIGERANT
SIZES 018 TO 060
1- -1/2 TO 5 NOMINAL TONS
Fig. 1 --- 123A / 124A
NOTE: Read the entire instruction manual before starting the
installation.
Installation Instructions
TM
a05236

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Summary of Contents for Bryant 123A

  • Page 1: Table Of Contents

    ..... . PURON REFRIGERANT QUICK REFERENCE GUIDE 12 a05236 Fig. 1 --- 123A / 124A NOTE: Read the entire instruction manual before starting the installation.

  • Page 2: Safety Considerations

    SAFETY CONSIDERATIONS INSTALLATION RECOMMENDATIONS Improper installation, adjustment, alteration, service, NOTE: In some cases noise in the living area has been traced to maintenance, or use can cause explosion, fire, electrical shock, or gas pulsations from improper installation of equipment. other conditions which may cause death, personal injury, or 1.

  • Page 3: Installation

    INSTALLATION 3/8 ---in. Dia. Tiedown Specifications for this unit in residential new construction market Knockouts in Basepan require the outdoor unit, indoor unit, refrigerant tubing sets, (2) Places metering device, and filter drier listed in presale literature. There can be no deviation. Consult the Application Guideline and Service Manual –...
  • Page 4 Installing TXV in Place of Piston Replacing TXV on R- -22 Indoor Coil 1. Pump system down to 2 psig and recover refrigerant. 1. Pump system down to 2 psig and recover refrigerant. 2. Remove hex nut from piston body. Use backup wrench on 2.

  • Page 5: Step 6 -Make Piping Connections

    STEP 6 —Make Piping Connections CAUTION WARNING UNIT DAMAGE HAZARD PERSONAL INJURY AND ENVIRONMENTAL Failure to follow this caution may result in equipment HAZARD damage or improper operation. Failure to follow this warning could result in personal To prevent damage to unit or service valves observe the injury or death.
  • Page 6 Table 2—Accessory Usage REQUIRED FOR SEA REQUIRED FOR LOW AMBIENT REQUIRED FOR LONG LINE Accessory COAST APPLICATIONS APPLICATIONS (Below 55 °F) APPLICATIONS* (Over 80 Ft.) (Within 2 miles) Crankcase Heater Evaporator Freeze Thermostat Winter Start Control Yes { Accumulator Compressor Start Assist Capacitor and Relay Motor Master®...

  • Page 7: Step 7 -Make Electrical Connections

    Deep Vacuum Method Final Tubing Check The deep vacuum method requires a vacuum pump capable of IMPORTANT: Check to be certain factory tubing on both pulling a vacuum of 500 microns and a vacuum gage capable of indoor and outdoor unit has not shifted during shipment. Ensure accurately measuring this vacuum depth.

  • Page 8: Step 8 -Compressor Crankcase Heater

    Connect Ground and Power Wires Connect Control Wiring Connect ground wire to ground connection in control box for Route 24- -v control wires through control wiring grommet and safety. Connect power wiring to contactor as shown in Fig. 8. connect leads to control wiring. Refer to Installation Instruction packaged with thermostat.

  • Page 9: Step 10 -Start- -Up

    STEP 10 —Start- -Up Sequence of Operation Turn on power to indoor and outdoor units. Transformer is CAUTION energized. On a call for cooling, thermostat makes circuits R- -Y and R- -G. Circuit R- -Y energizes contactor, starting outdoor fan motor and UNIT OPERATION AND SAFETY HAZARD compressor circuit.

  • Page 10: Tech Assistt Diagnostics At- -A- -Glance

    TechAssist™ Diagnostics- -at- -a- -Glance Single phase air conditioning units are equipped with a system diagnostics tool called the TechAssistt. Follow Table 4 to identify and correct problems in system operation. Table 4—TechAssistt Diagnostics- -at- -a- -Glance Description ... Thermostat cooling call .

  • Page 11: Care And Maintenance

    CARE AND MAINTENANCE For continuing high performance and to minimize possible equipment failure, periodic maintenance must be performed on this equipment. Frequency of maintenance may vary depending upon geographic areas, such as coastal applications. See Owner’s Manual for information. Table 5—Required Liquid- -Line Temperature (°F) LIQUID REQUIRED SUBCOOLING TEMPERATURE (°F)

  • Page 12: Puron Refrigerant Quick Reference Guide

    S Observe all warnings, cautions, and bold text. S All indoor coils must be installed with a hard shutoff Puron TXV metering device. Catalog No. II 123A ---18---2 EBryant Heating & Cooling Systems 7310 W. Morris St. Indianapolis, IN 46231 Printed in U.S.A.

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124a

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