Bryant PREFERRED 124ANS - User Manual

Installation Instructions
124ANS
PREFERREDt SERIES AIR CONDITIONER
WITH PURONr REFRIGERANT
1−1/2 TO 5 NOMINAL TONS
Fig. 1 - 124ANS
NOTE: Read the entire instruction manual before starting the
installation.
TABLE OF CONTENTS
PAGE
SAFETY CONSIDERATIONS 1........................
INSTALLATION 2−3.................................
Complete Pre−Installation Checks 2...................
Rig and Mount Unit 2..............................
Complete Refrigerant Piping Connections 3.............
Make Electrical Connections 3........................
START−UP 4........................................
SERVICE 4.........................................
MAINTENANCE 6...................................
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
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.
!
WARNING
ELECTRICAL SHOCK HAZARD
Failure to follow this warning could result in personal injury
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.
CAUTION
!

Bryant PREFERRED 124ANS Specifications

General

Brand	Bryant
Model	PREFERRED 124ANS
Category	Air Conditioner
Language	English

Summary

SAFETY CONSIDERATIONS

INSTALLATION

COMPLETE PRE-INSTALLATION CHECKS

Unit unpacking, shipment inspection, and system requirements.

RIG AND MOUNT UNIT

Guidelines for ground or roof mounting, including pad requirements.

Clearance Requirements

Specifies minimum clearances for single and multi-unit installations.

Rigging

Instructions for safely lifting and securing the unit using slings.

COMPLETE REFRIGERANT PIPING CONNECTIONS

Connecting outdoor to indoor units, line size, filter drier installation.

Make Piping Sweat Connections

Procedure for making sweat connections, using nitrogen purge.

START-UP

PRELIMINARY CHECKS

Verify wiring, power source, valve positions, and heater tightness.

EVACUATE AND DEHYDRATE

Ensure field piping and fan coil are evacuated and dehydrated.

CHARGE SYSTEM

Procedure for releasing refrigerant charge and checking system.

SERVICE

High-Pressure Relief Valve

Details on the compressor's high-pressure relief valve function.

Internal Current and Temperature Sensitive Overload

Explains the compressor overload reset mechanism.

Pumpdown Procedure

Steps for pumping down the system to perform low-side repairs.

Crankcase Heater

Function, troubleshooting, and requirements for crankcase heaters.

Service Valves

Information on factory state, handling, and replacement of service valves.

Refrigerant Charging

CHECK CHARGE

MAINTENANCE

LUBRICATION

Specifies compressor oil type and replacement guidelines.

CLEANING COILS

Coil cleaning procedures, frequency, and methods for debris removal.