3
ICE CFA1120A-3360A & CGA3180A I&O Manual 03/2021 Rev.5
WARNING
• If the information in these instructions are not followed exactly, a fire may result
causing property damage, personal injury or loss of life.
• Read all instructions carefully prior to beginning the installation. Do not begin
installation if you do not understand any of the instructions.
• Improper installation, adjustment, alteration, service or maintenance can cause
property damage, personal injury or loss of life.
• Installation and service must be performed by a qualified installer or service agency in
accordance with these instructions and in compliance with all codes and requirements
of authorities having jurisdiction.
INSTALLER:
Affix the instructions on the inside of the building adjacent to the
thermostat.
END USER:
Retain these instructions for future reference.
Table of Contents
Chapter 1 Air Conditioner Description & Specifications
1.1 General Description .................................................................................................................................5
1.2 Model Identification .................................................................................................................................6
1.3 Serial Number Date Code ........................................................................................................................6
1.4 Air Flow, Weights and Filter Sizes ...........................................................................................................6
1.5 General Operation ....................................................................................................................................7
1.6 Optional Controls and Packages ............................................................................................................10
1.7 Electrical Operation ...............................................................................................................................10
Chapter 2 Electronic Control Board
2.1 Introduction ............................................................................................................................................12
2.2 Installation and Replacement .................................................................................................................13
2.3 Operation ................................................................................................................................................13
2.4 Sequence of Operation ...........................................................................................................................17
Chapter 3 Installation
3.1 Equipment Inspection .............................................................................................................................23
3.2 Installation Requirements .......................................................................................................................23
3.3 Installation Materials ............................................................................................................................24
3.4 Porting and Duct Work ..........................................................................................................................26
3.5 Top Flange Installation ..........................................................................................................................26
3.6 Installing the Lifting Brackets ................................................................................................................27
3.7 Mounting the Unit .................................................................................................................................27
3.8 Electrical Connections ...........................................................................................................................28
Chapter 4 Start-Up
4.1 Check-Out of Cooling Cycle .................................................................................................................32
4.2 Check-Out of Heating Cycle ..................................................................................................................32
