Carrier 38AUM Series User Manual

Subject to change without notice
Installation Operation Maintenance Manual
Manufacturer’s Name: Saudi Airconditioning Manufacturing Co. Ltd.
Country of origin : Jeddah, Saudi Arabia
Nearest port of embarkation: Jeddah Islamic port
Product classification: Commercial and Residential
38AUM Air Cooled Condensing Units – 50Hz
Nominal Cooling Capacity 6.0 – 15.0 Tons
HFC R
-410A Refrigerant
The 38AUM series outdoor air cooled condensing units matched with Carrier’s 40RUM series indoor air handler’s offer
a wide variety of options for your HVAC application needs. Whether it’s first cost with the 38AUM single compressor
models or superior part load performance from the two compressor models, this series is designed for long,
dependable operation as a rooftop or on-the-ground installation. All 38AUM and 40RUM series units use
environmentally sound Puron ® R-410A refrigerant. Together, they create a reliable split system that provides easy
solutions to a wide range of commercial HVAC needs.
Contact your local Carrier representative for additional reference materials.
38AUM Air Cooled Condensing Units – 50Hz
Quality Assurance
Certificate Reg. No:
04 100 950420
Page 1

Carrier 38AUM Series Specifications

General

Product Type	Air Conditioner
Series	38AUM
Type	Split System
Refrigerant	R410A
Compressor Type	Rotary
Control Type	Remote
Dimensions (Indoor Unit)	790 x 230 x 290 mm
Dimensions (Outdoor Unit)	700 x 550 x 240 mm

Summary

SAFETY CONSIDERATIONS

UNIT PHYSICAL DATA

English Units Specifications

Technical data and specifications in imperial measurements.

SI Units Specifications

INSTALLATION GUIDELINE

Refrigerant Line Sizing

Evacuation and Dehydration Procedure

System Dehydration Process

Steps to properly remove moisture from the refrigeration system.

Electrical Connections and Safety

Electrical Shock Hazard Warning

Critical safety notice emphasizing the danger of electrical shock.

PRE-START-UP PROCEDURES

System Check and Preparations

Verifying system readiness and performing necessary preparations before operation.

START-UP PROCEDURES

Compressor Rotation Verification

Ensuring the compressor is rotating in the correct direction for proper operation.

OPERATING SEQUENCE

ROUTINE SYSTEM MAINTENANCE

Refrigeration System Components

Compressor Oil Handling and Type

Comfort Alert Diagnostic Module

Compressor Protection Systems

Crankcase Heater Functionality

PIPING RECOMMENDATION

ELECTRICAL DATA TABLE

CHARGING CHARTS

38AUZ07 Application Charging Data

Charging chart for the 38AUZ07 model operating at 400-3-50.

R-410A Refrigerant Quick Reference

Installer and Technician Notes

Key information and precautions for installers and service technicians.

Troubleshooting Guide

Cooling Service Analysis and Remedies

Analysis of common cooling system problems and their solutions.

MANDATORY START-UP CHECK LIST

Preliminary Information Recording

Essential data to record before unit startup for future reference.