GREENHECK 485093 24Vac-dc HOA Controller User Manual

: June 11, 2024
: GREENHECK

Table of Contents

GREENHECK 485093 24Vac-dc HOA Controller
product Installation
Mounting and Wiring
product HOA Wiring Diagram/Specifications
product Our Commitment
Installation, Operation and Maintenance Manual
General Information
HOA Wiring Diagram/Specifications
Operation
HOA Troubleshooting
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

GREENHECK 485093 24Vac-dc HOA Controller

Building Value in Air
The HOA Controller is an electronic device used to control and monitor the operation of heating, ventilation, and air conditioning systems. This instruction manual provides installation, operating, maintenance, and parts information for the HOA Controller.

product HOA Controller Features

The HOA Controller has the following features:

Electronic control of HVAC systems
24Vac/dc power supply
Manual override for local control
Compact design for easy installation

product Installation

General Safety Information

Only qualified personnel should install this product. Personnel should have a clear understanding of these instructions and should be aware of general safety precautions. Improper installation can result in electric shock, possible injury due to coming in contact with moving parts, as well as other potential hazards. For more information, contact a licensed professional engineer before moving
forward.

product Control Components
The HOA Controller comes with the following components:

HOA Controller unit
Mounting hardware
User manual

Mounting and Wiring

Before mounting and wiring the HOA Controller, please follow these steps:

Follow all local electrical and safety codes, as well as the National Electrical Code (NEC) and the National Fire Protection Agency (NFPA), where applicable. Follow the Canadian Electrical
Code (CEC) and ULC-S650 if installing this product in Canada.
Verify that the power source is compatible with the equipment.
Verify that all required parts and the correct quantity of each item have been received. If any items are missing, report shortages to your local representative to arrange for obtaining missing parts.
If the control cannot be installed and operated immediately, precautions need to be taken to prevent deterioration of the control during storage. The user assumes responsibility of the control and accessories while in storage. The manufacturer will not be responsible for damage during storage.

product HOA Wiring Diagram/Specifications

The HOA Controller wiring diagram and specifications are provided in the user manual.

product Operation
The HOA Controller can be operated manually or automatically. To operate manually, use the manual override feature on the unit. To operate automatically, connect the HOA Controller to the HVAC system and follow the wiring diagram provided in the user manual.

product Troubleshooting Guide
If you encounter any issues with the HOA Controller, please refer to the troubleshooting guide provided in the user manual.

product Our Commitment

We are committed to providing high-quality products and services. If you have any questions or concerns about the HOA Controller, please contact your local representative.

Installation, Operation and Maintenance Manual

Please read and save these instructions for future reference. Read carefully before attempting to assemble, install, operate or maintain the product described. Protect yourself and others by observing all safety information. Failure to comply with instructions could result in personal injury and/or property damage!

HOA Controller Features

Simple installation & setup
24Vac/dc Input Voltage
Fireman’s Override – Takes precedence over all operations via Voltage Input
OLEO display with user-friendly keypad interface
Hand/Off/Auto-Local/Auto Remote operations.
On-Board Speed Control
Run Status Relay Output
Auxiliary Contact Output

General Information

This instruction manual provides installation, operating, maintenance, and parts information for the HOA Controller.

WARNING
Improper installation, adjustment, alterations, service or maintenance can cause injury and property damage, as well as possible voiding of factory warranty. No person may install, operate, or maintain the HOA Controller without first being fully trained and qualified in the installation, operation and maintenance, and carefully reading and understanding the contents of this manual. If you have any questions about these instructions, contact your local representative.

General Safety Information
Only qualified personnel should install this product. Personnel should have a clear understanding of these instructions and should be aware of general safety precautions. Improper installation can result in electric shock, possible injury due to coming in contact with moving parts, as well as other potential hazards. for more information, contact a licensed professional engineer before moving forward.

Follow all local electrical and safety codes, as well as the National Electrical Code
(NEC) and the National Fire Protection Agency (NFPA), where applicable. Follow the Canadian Electrical Code (CEC) and ULC-S650 if installing this product in Canada.
Verify that the power source is compatible with the equipment

Receiving
Upon receiving the product, check to ensure all items are accounted for by referencing the delivery receipt or packing list. Inspect each crate or carton for shipping damage before accepting delivery. Alert the carrier of any damage detected. The customer will note damage (or shortage of items) on the delivery receipt and all copies of the bill of lading which is countersigned by the delivering carrier. If damaged, immediately contact your local representative. Any physical damage to the unit after acceptance is not the responsibility of the manufacturer.

Unpacking
Verify that all required parts and the correct quantity of each item have been received. If any items are missing, report shortages to your local representative to arrange for obtaining missing parts. Sometimes it is not possible that all items for the unit be shipped together due to the availability of transportation and truck space. Confirmation of shipment(s) must be limited to only items on the bill of lading.

Storage
Controls are protected against damage during shipment. If the control cannot be installed and operated immediately, precautions need to be taken to prevent deterioration of the control during storage. The user assumes responsibility of the control and accessories while in storage. The manufacturer will not be responsible for damage during storage. These suggestions provide solely as convenience to the user.

Indoor
The ideal environment for the storage of controls and accessories is indoors, above grade, in a low-humidity atmosphere that is sealed to prevent the entry of blowing dust, rain or snow. Care must be taken to protect controls and accessories from dirt, moisture, and extreme temperature during storage.

NOTE: Improper storage which results in damage to the product will void the warranty.

Control Components
Verify that all of the following parts and hardware have been received prior to beginning installation. Contact your local representative or the manufacturer if replacement parts are required.

NOTE: Additional parts (provided by others) may be required to complete the control installation, including additional wiring and hardware for mounting the control to the building structure.

NOTE: See the following page for a diagram of provided mounting kit and control components.

HOA Controller Mounting

HOA Wiring

HOA Wiring Diagram/Specifications

Specifications

Input Power: 24Vac/dc
Temperature Range: -4° to 140° F (-20 to 60° C)
Fireman’s Voltage Input : ( 12Vac ~ 115Vac)
Voltage Input Auto Local/Auto Remote: (12Vac ~ 115Vac)
Dry Input Auto Local/Auto Remote: provide contact closure between Auto and C.
Run Status: Closes when> 2.0V motor speed.
Auxiliary Contact: The N.O./N.C. changes state at 1.85Vdc. Contact rated for 1 0A at 24-240Vac, 5A at 30Vdc.
Remote Dial or Control Input: 0 – 1 0V input. +24V available for source powering Remote Dial or Sensor.

Operation

IMPORTANT: Ensure that all wiring is complete before applying power to the HOA controller.

Initial Setup

Apply power to the HOA controller. The controller will display “Press Mode V1 .00” and the Voltage Present LED will illuminate Green as shown to the right.
Press MODE button will activate HAND Mode Operation. This will allow the end user or service member to control motor speed without enabling the motor via Voltage or Dry Inputs. Factory set to 5.00V. To change speed, Press the Up arrow to Increase or Down arrow to Decrease Motor Speed. New speed setting will be saved when Mode button in pressed.
Pressing MODE button again will activate OFF Mode. This will disable the motor.
NOTE: Unless a Fireman’s Input is activated via Voltage Input.
Pressing MODE button again will activate Auto Local: Controls motor speed using HOA Up/Down buttons along with either Voltage Input (12V ~ 115V) between Auto and COM on Voltage Input terminal block or a Dry Contact Closure between Auto and COM on the Dry Input Terminal Block to enable it.
Pressing the MODE button again will activate Auto Remote: Will receive a 0-10V signal from the Control Input Terminal Block and the OLEO will display current reading. Either a Voltage Input ( 12V ~ 115V) between Auto and COM on the Voltage Input terminal block or a Dry Contact Closure between Auto and COM on the Dry Input Terminal Block is required to enable it.
Fireman’s Override -Apply a Voltage Input in the range of 12V ~ 115V between Auto and COM on the Voltage Input terminal block to enable. The Green Voltage Present LED will flash when HOA Controller is in Fireman’s Mode.
NOTE: Fireman’s Override takes precedence over all Modes and is Factory set to 1 0.0V
Fireman’s Set Point: Press and hold Up and Down arrows simultaneously until Fireman’s setpoint is activated. Press Up or Down arrow for the desired setting. Press mode to Exit and new setting will be saved.
Software Version: Depress the Up arrow and Mode button simultaneously until the software version is displayed. It will remain on for three seconds and return to the last mode of operation.
Factory Reset: Depress the Down arrow and Mode button simultaneously until the controller displays “Press Mode V1 .00”

HOA Troubleshooting

Our Commitment

As a result of our commitment to continuous improvement, Greenheck reserves the right to change specifications without notice. Product warranties can be found online at Greenheck.com, either on the specific product page or in the literature section of the website at Greenheck.com/Resources/Library/Literature.

AMCA Publication 410-96, Safety Practices for Users and Installers of Industrial and Commercial Fans, provides additional safety information. This publication can be obtained from AMCA International, Inc. at www.amca.org.