Bryant 123A User Manual

Installation Instructions
MODELS 123A / 124A
LEGACYT SERIES AIR CONDITIONERS
WITH PURONR REFRIGERANT
SIZES 018 TO 060
1--1/2 TO 5 NOMINAL TONS
TM
a05236
Fig. 1 --- 123A / 124A
NOTE: Read the entire instruction manual before starting the
installation.
TABLE OF CONTENTS
PAGE
SAFETY CONSIDERATIONS 2.......................
INSTALLATION RECOMMENDATIONS 2.............
INSTALLATION 3--9...............................
Step 1 -- Check Equipment & Jobsite 3...............
Step 2 -- Install on Solid Pad 3......................
Step 3 -- Clearance Requirements 3..................
Step 4 -- Operating Ambient 3......................
Step 5 -- Install TXV 3 -- 4.........................
Step 6 -- Make Piping Connections 5 -- 7..............
Step 7 -- Make Electrical Connections 7 -- 8............
Step 8 -- Compressor Crankcase Heater 8.............
Step 9 -- Install Electrical Accessories 8..............
Step 10 -- Start--Up 9..............................
Step 11 -- Check Charge 9..........................
Step 12 -- Final Checks 9...........................
TECH ASSISTT DIAGNOSTICS AT--A-- GLANCE 10....
CARE AND MAINTENANCE 11......................
PURON REFRIGERANT QUICK REFERENCE GUIDE 12

Bryant 123A Specifications

General

Brand	Bryant
Model	123A
Category	Air Conditioner
Language	English

Summary

Safety Considerations

Installation Recommendations

Installation

Step 1 - Check Equipment & Jobsite

Verifies unit matches job specifications and inspects for shipping damage.

Step 2 - Install on Solid Pad

Details mounting the unit on a level pad, including tie-down requirements.

Step 3 - Clearance Requirements

Specifies required clearances for airflow, service, and unit placement.

Step 4 - Operating Ambient

Defines the acceptable outdoor operating temperature range for cooling.

Step 5 - Install TXV

Instructions for installing the TXV, including replacement of R-22 TXVs.

Step 6 - Make Piping Connections

Covers connecting refrigerant lines, emphasizing brazing and sealing.

Step 7 - Make Electrical Connections

Details wiring requirements and connections for the unit.

Step 8 - Compressor Crankcase Heater

Instructions for powering the crankcase heater before unit startup.

Step 9 - Install Electrical Accessories

Guidance for installing various electrical accessories with the unit.

Step 10 - Start-Up

Procedures for safely starting the air conditioning system.

Step 11 - Check Charge

How to check and adjust the refrigerant charge for optimal performance.

Step 12 - Final Checks

Final verification steps before leaving the installation site.

TechAssist™ Diagnostics-at-a-Glance

Care and Maintenance

Puron® (R-410A) Refrigerant Quick Reference Guide