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Technical Support

Below are the lists of technical support documents available in PDF format for downloading and viewing.

 


 

Frequently Asked Questions

Covering a number of issues involved in unit performance, installation and maintenance.

Download PDF Date Updated: December 2009

 

 

Split System Installation Guides

Addressing the requirements for installation of:

R32 Split Systems Download PDF Date Updated: June 2020
R410A Split Systems Download PDF  Date Updated: Feb. 2022

R22 Split Systems Download PDF  Date Updated: Jan. 2007

 

 

Service Training Manual

Download PDF  Version Dated: January 2023, Issue 8, 11 Mb

 


HITACHI Troubleshooting Guide
(NZ version)
Support Info
Download PDF Date Updated: May 2011

 

HITACHI Quick Selection Tables (RAC)
Download PDF Date Updated: Feb. 2016

 

Digital Scroll Compressor Video 

Support Info - How It Works
Click here to view on YouTube

 

Quality Coating - Process Specification
Product manufactured in NZ and sold in Australia
Download PDF February 2023

 

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Unit Controllers (UC6, UC7, UC8 & IUC)

Split & Packaged Systems 

Download UC6 Client Wiring   November 2013

Download UC6 Features & Fault Codes   July 2013 

Download UC6 Operation & Installation   November 2012
Download UC6 Modbus Communications
Download UC6 BACnet Communications

Download UC7 Client Wiring   - Ducted Split Systems  September 2012

Download UC7 Operation & Installation  - Air-to-Air  March 2014

Download UC7 Operation & Installation  - Hydronics  March 2014
Download UC7 Fault Codes  May 2013

Download UC7 Quick Reference Operation and Fault Diagnosis  October 2014
Download UC7 Troubleshooting Guide
  October 2012

Download UC7 Modbus Communications
Download UC8-IUC-tstat Connection Wiring : Air-to-Air 

Download UC8 Operation Manual : Air-to-Air 
Download UC8 Operation Manual : Hydronics 

Download UC8 Fault and Display Messages : Air-to-Air
Download UC8 Fault and Display Messages : Hydronics
Download UC8 Troubleshooting Guide
Download UC8 Quick Refeence Operation and Fault Diagnosis  October 2015
Download UC8 Modbus Communications
Download UC8 BACnet Communications

Download UC8 Master-Slave Connection

View UC8 SW3 Pushbutton Navigation Tutorial Video  March 2023
Download IUC Quick Reference & Fault Diagnosis
 November 2015
Download IUC Operation Manual

Outdoor Unit Controller (OUC) Video
Support Info (2007–2014 models)
Click here to view on YouTube

Outdoor Unit Controller (OUC): Program 5D, Issue 4
Split & Packaged Systems 

Download OUC Operation & Fault Diagnosis Date Updated: November 2006
Download OUC Support Information Date Updated: February 2006

Outdoor Unit Controller (OUC): Program 4D, Issue 3

Split & Packaged Systems
Download OUC Operation & Fault Diagnosis Date Updated: January 2005

Outdoor Unit Controller (OUC): Issue 2

Split & Packaged Systems
Download OUC Operation & Fault Diagnosis Date Updated: August 2004

Outdoor Unit Controller (OUC): Issue 1

Split & Packaged Systems
Download OUC Operation & Fault Diagnosis Date Updated: July 2004


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SAT Controllers

For support info, enter 'SAT' in the Model Search box above

 

Solving the Mysteries of Economisers
Support Info
Download PDF Date Updated: December 2009

Floating Point Error - Tz Selection Programs
Click here Date Updated: February 2004

Flexible Ducting Installation Guide

Split Systems Guide Sheet
Download PDF Date Updated: November 2003

 

Commissioning Sheets - Ducted DX Systems
R410A models: Date Updated: March 2010

Download OSA 55-280RK

Download OSA 298-950RK

Download OPA 116-201RK

Download OPA 225-960RK
Download OPA ECO Series (UC8)

Models released from June 2015: refer Installation Instructions

 

Water Sourced Units Applications Manual
Water Sourced Packaged Units (HWP-UC8 Series)

Download PDF Date Updated: May 2018 

 

Understanding Superheat

Reproduced temperzone NEWS article:  click here

'Superheat Explained' on-line Training Module:  click here

 

DRED Compliance

 

High Percentage Fresh Air Systems

Split & Packaged Systems Applications Notice

Download PDF Date Updated: October 2001

 

Spare Parts Bulletin
Download PDF Capacitor Change: April 2021

Kulthorn Motors as Replacements

Split & Packaged Systems Applications Notice

Download PDF Date Updated: July 2008

 

 

 

 

 

 

 

 

 

 

 

 

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