AAON SB series User Manual

SB Series
Vertical Self-Contained Units
Installation, Operation
& Maintenance
UL-60335
If the information in this manual is not
followed exactly, a fire or explosion
may result causing property damage,
personal injury or loss of life.
WARNING
FOR YOUR SAFETY
Do not store or use gasoline or other
flammable vapors and liquids in the
vicinity of this or any other appliance.
WARNING
QUALIFIED INSTALLER
Improper installation, adjustment,
alteration, service or maintenance can
cause property damage, personal
injury or loss of life.
Startup and
service must be performed by a
Factory Trained Service Technician
competent in working with flammable
refrigerants. A copy of this IOM must
be kept with the unit.
WARNING

AAON SB series Specifications

General

Refrigerant	R-410A
Compressor Type	Scroll
Heating Options	Electric, Steam
Construction	Heavy-duty galvanized steel
Insulation	Foam
Airflow	1, 200 to 10, 000 CFM

Summary

AAON SB Series Features and Options Introduction

Safety

Electrical, Fire, and Explosion Hazards

Critical warnings regarding electrical and fire risks.

Carbon Monoxide and Rotating Component Hazards

Warnings on CO poisoning and hazards from rotating parts.

Grounding, Unit Handling, and Water Safety

Installation safety for grounding, lifting, and water pressure.

Refrigerant Leak and UV-C Lamp Safety

Procedures for refrigerant leaks and UV-C lamp precautions.

SB Series Feature String Nomenclature

General Information

Codes, Ordinances, and Installation Requirements

Adherence to mechanical, building, and electrical codes.

Installation

Unit Locating, Clearances, and Floor Mounting

Proper placement, access, and support requirements.

Lifting, Handling, and Unit Assembly

Procedures for safe lifting and field assembly of split units.

Module Joint Securing and Electrical Connections

Methods for joining sections and making electrical connections.

Final Sealing and Refrigerant Piping

Ensuring air-tightness and connecting refrigerant lines.

Water Piping and Glycol System Setup

Electrical

Nameplate Voltage Markings and Tolerances

Electrical Connections and Safety Precautions

Wiring entry, cutting openings, and foam safety.

Control Wiring and Protection Devices

Waterside Economizer

Energy Recovery Units

Energy Recovery Wheel Setup and Initial Checks

Air Seal Adjustments and Wheel Maintenance

Startup Procedure for Energy Recovery Units

Supply Fans

Fan Air Flow Adjustment and EC Motor Control

Setting airflow and modulating fan speed.

Adjusting Refrigerant Charge

Liquid Sub-cooling and Evaporator Superheat Checks

Methods for verifying system charge.

Overcharge, Undercharge, and Freeze Stat Operation

Diagnosing and correcting charge issues, and freeze protection.

Operation

Refrigerant Detection System Functionality

How the RDS detects and responds to leaks.

Cooling, Heating, and Preheating Modes

Refrigerant Removal, Evacuation, and DX Cooling

Procedures for handling refrigerant and DX operation.

Condensate Drain Pan and Coil Cleaning

Phase and Brownout Protection Module

DPM Setup and Voltage Monitoring

SB Series Startup Form

Pre Startup Checklist and Unit Configuration

Verification steps before initial operation.

Fan, Compressor, and Refrigeration Checks