AAON WHA-030 User Manual

WH Series
Horizontal Water-Source Heat Pump Unit
Installation, Operation
& Maintenance
If the information in this manual is not
followed exactly, a fire may result
causing property damage, personal
injury, or loss of life.
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.
Keep a copy of this IOM with the unit.
WARNING

AAON WHA-030 Specifications

General

Brand	AAON
Model	WHA-030
Category	Heat Pump
Language	English

Summary

Safety Warnings and Precautions

General Safety Cautions

Important warnings to prevent damage, injury, or death.

Electrical and Handling Hazards

Warnings related to electrical shock, fire, and proper unit handling.

Water and Component Hazards

Precautions against water freezing, pressure issues, grounding, and rotating parts.

Installation Procedures

Unit Placement and Mounting

Guidance on selecting location, mounting methods, and clearances.

Condensate Drain Piping

Proper installation of drain lines, traps, and connections.

Blower Assembly Removal and Modification

Steps for accessing and removing the blower assembly, including discharge modification.

Lifting and Handling the Unit

Safe procedures for lifting, moving, and handling the unit.

Horizontal Unit Bottom Access

Methods for accessing components via the bottom access panel.

Duct Connection

Water System and Glycol Management

Water Piping Requirements

Glycol Percentage and Freeze Protection

Electrical Connections and Wiring

Power Supply and Disconnect Installation

Procedures for connecting power, grounding, and installing disconnect switches.

Thermostat Control Wiring

Startup Procedures

Operation Limits and Fan Airflow Adjustment

Verifying operational limits and adjusting fan speed.

Adjusting Refrigerant Charge

Critical steps for checking and adjusting refrigerant charge.

R-410A Refrigerant Temp-Pressure Chart

Unit Operation and Controls

Pioneer Silver Controller Overview

Sequences of Operation

Alarms and Diagnostic Codes

Understanding and troubleshooting unit alarms via LED indicators.

Maintenance and Coil Cleaning

DX Cooling System Checks

Microchannel Coil Cleaning Procedures

Filter Replacement