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UC8 Controller Current Range
The temperzone UC8 Unit Controller provides system protection functions such as coil frost protection, de-icing, high head pressure and low suction pressure cut-out. It also protects against rapid cycling of the compressor(s) and loss of refrigerant. Various methods of head pressure control (or limiting) are employed in temperzone units. The particular method used varies from model to model, but is also handled by the Unit Controller. In combination, these features deliver optimised performance across a wide operating temperature range.

UC8 Controllers have been progressively introduced into temperzone air cooled and water sourced models from 2015, replacing the previous UC7 Controllers.
These are not an accessory. They are an integral part of each air conditiong system. The software version on each UC8 varies depending on the product and its age.

Use in Split Systems:  
Factory installed in the outdoor unit, the UC8 communicates with the IUC located in the Indoor Unit.
A wall mounted room temperature thermostat, eg temperzone's SAT-3, can be connected to the UC8 or IUC, whichever is closer.

UC8 Controller information may be found on the individual product info pages (for relevant products) under 'Related Items of Interest'.

Replacements: If replacing a UC8 Controller in an Inverter unit, please contact Temperzone Technical Support to ensure that UC8 software version is correct and for instructions to set-up correct compressor selection prior to starting the unit.

Download Connection Wiring UC8-IUC-tstat: Air-to-Air 
UC8 Operation Manual: Air-to-Air (R410A)
Download UC8 Operation Manual: Air-to-Air Splits R32 
Download UC8 Operation Manual: Hydronics 
Download UC8 Operation Manual: Hydronics CWP R32
Download UC8 Fault and Display Messages: Air-to-Air
Download UC8 Fault and Display Messages: Hydronics
Download UC8 Troubleshooting Guide
Download UC8 Quick Reference and Operation Fault Diagnosis
Download UC8 v4.0.3E Display Messages
Download UC8 Modbus/RTU Communications
Download UC8 Master-Slave Connection
Download UC8 BACnet/IP Communications
Download UC8 BACnet to Modbus gateway (Babel Buster)

More than 60 years of Temperature Control

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