2EN
Contents Universal Air Conditioning Unit
1 Explanation of Symbols and Safety
Instructions ............................ 3
1.1 Recognize Safety Information .............3
1.2 Understand Signal Words................3
1.3 Supplemental Directives .................3
1.4 General Safety Messages ................3
2 General Information ..................... 4
2.1 R-410A Reference Information ............4
2.2 Q3 Control Standard Features ............4
2.3 Product Data Plate......................4
2.4 Component Identification................5
2.5 Controls Description....................6
3 Intended Use ........................... 7
4 Specifications .......................... 7
4.1 System Specifications ...................7
4.2 Air Conditioner Dimensions ..............8
4.3 Electrical Box Dimensions................8
4.4 Q3 Control Dimensions .................9
4.5 Cable Lengths .........................9
4.6 System Inputs..........................9
5 Wiring Diagram........................ 10
6 Installation .............................11
6.1 Preparing for System Installation.......... 11
6.2 Unpacking and Inspection ..............12
6.3 Installing the Field Power Supply .........12
6.4 Mounting the Unit .....................12
6.5 Installing the Ducting and the Grilles ......12
6.6 Wiring the Unit. . . . . . . . . . . . . . . . . . . . . . . . 12
6.7 Installing the Required Ambient
Temperature Sensor ...................13
6.8 Installing the Q3 Control................13
6.9 Installing the Optional Outside Air
Temperature Sensor ...................13
6.10 Start Up Checklist .....................14
7 Operation............................. 15
7.1 Understanding Button Functions .........15
7.2 Normal Heating or Cooling Cycle ........16
7.3 Modes and Programmable Functions .....16
8 Programmable Functions, Ranges, and
Factory Defaults ....................... 18
8.1 Quick Reference Table. . . . . . . . . . . . . . . . . . 18
8.2 Description of Functions ................19
9 Programming the Q3 Control ............ 24
9.1 Entering Programming Mode............24
9.2 Customizing the Functions ..............24
9.3 Restoring Factory Default Settings ........24
10 Troubleshooting .......................25
10.1 General System Troubleshooting .........25
10.2 Digital-Controls Troubleshooting .........26
11 Faults and Error Messages ...............28
11.1 High-Pressure Shutdown
(HI/PS) ..............................28
11.2 Low-Pressure Shutdown
(LO/PS)..............................28
11.3 Low-Voltage Shutdown.................28
11.4 Fault Codes and Indicator Codes.........29
12 Maintenance ..........................30
12.1 Checking the Condensate Drains.........30
12.2 Cleaning the Return-Air Filter ............30
12.3 Refrigerant Gas .......................30
12.4 Checking the Condenser Coil ...........30
12.5 Checking the Compressor Overload ......31
13 Disposal .............................. 31
Limited Two-Year Warranty ................. 31
Contents
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