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Below are the lists of technical support documents available in PDF format for downloading and viewing.
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Frequently Asked Questions Covering a number of issues involved in unit performance, installation and maintenance. Download PDF Date Updated: December 2009
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Split System Installation Guides Addressing the requirements for installation of: R32 Split Systems Download PDF Date Updated: June 2020 R22 Split Systems Download PDF Date Updated: Jan. 2007 |
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Service Training Manual Download PDF Version Dated: January 2023, Issue 8, 11 Mb
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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
Support Info (2007–2014 models)
Click here to view on YouTube
Outdoor Unit Controller (OUC): Program 5D, Issue 4
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 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