User Guide

Contents
Page 1 mrcool.com
Safety Precautions
Warnings ................................................................................................................................. 3
Cautions .................................................................................................................................. 4
Parts Overview
Parts Diagram ........................................................................................................................ 5
Display Window ..................................................................................................................... 7
Accessories ............................................................................................................................. 8
Operating Instructions
Operating Temperature ......................................................................................................... 10
Manual Operation .................................................................................................................. 10
Airflow Directional Control .................................................................................................... 11
How the A/C & Heat Pump Work .......................................................................................... 12
Special Functions .................................................................................................................... 13
Care and Maintenance
Before Maintenance .............................................................................................................. 14
Cleaning the Unit ................................................................................................................... 14
Cleaning the Air Filter(s) ........................................................................................................ 14
Preparation for Extended Non-Operation .......................................................................... 15
Pre-Season Inspection ........................................................................................................... 15
Installation Diagram...................................................................................................... 16
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DISCLAIMER: Installing the MRCOOL DIY multi-zone does not require specialized tools or training. It does require basic
technical skills. You are assuming the risk by handling materials containing refrigerants under pressure including that if
not handled properly, refrigerant can cause bodily injury. If you do not feel comfortable conducting this installation
process yourself, we recommend you retain the services of a qualified HVAC professional.