YMGI • Your Modern Green Idea
YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!
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Table of Contents
Introduction
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Important Environmental Concerns ............................................................................................................... 3
Responsible Refrigerant Practices ................................................................................................................. 3
Disposal Notice .............................................................................................................................................. 3
Proper Field Wiring ........................................................................................................................................ 3
Personal Protective Equipment ...................................................................................................................... 3
Copyright ........................................................................................................................................................ 4
Basic Cautions and Warnings ........................................................................................................................ 4
Note From YMGI ............................................................................................................................................ 5
Installing Technician/Contractor’s Responsibilities ........................................................................................ 7
Limited Product Warranty ............................................................................................................................... 8
Why Require Professional Installation ........................................................................................................... 11
Suggestions on Hiring a HVAC Professional ................................................................................................. 11
Safety Precautions ......................................................................................................................................... 12
Brief Introduction to Ceiling Cassette Mini Split System ................................................................................ 13
Indoor Unit Diagram ....................................................................................................................................... 14
Specifications ................................................................................................................................................. 15
Unit Dimensions .............................................................................................................................................. 16
Wiring Connections ........................................................................................................................................ 17
Recommended Tools ..................................................................................................................................... 18
Installation Instructions ................................................................................................................................... 19
Installation Accessories .................................................................................................................................. 20
Installation Clearance ..................................................................................................................................... 21
Hanging Preparation ...................................................................................................................................... 22
Installation of Drainage Pipe .......................................................................................................................... 22
Connecting Refrigerant Pipes ........................................................................................................................ 25
Electrical Wiring ............................................................................................................................................. 26
Test and Check Items after Installation .......................................................................................................... 27
Safety Precautions ......................................................................................................................................... 28
Connect Refrigeration Pipes between Indoor Unit and Outdoor Unit ............................................................ 29
Vacuum Testing and Charging ....................................................................................................................... 31
Remote Controller .......................................................................................................................................... 32
Remote Functions .......................................................................................................................................... 33
Cleaning and Care ......................................................................................................................................... 39
Cleaning Air Filters ......................................................................................................................................... 39
Cleaning Air Intake ........................................................................................................................................ 40
Troubleshooting ............................................................................................................................................. 41
Error Codes for the Indoor Unit ...................................................................................................................... 43
Installation, Maintenance and Service Notes ................................................................................................. 47
