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Contents
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Contents
1
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
Temperature Sensor . . . . . . . . . . . . . . . . . . . 13
6.8
Installing the Q3 Control . . . . . . . . . . . . . . . . 13
2
6.9
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
8.1
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
(HI/PS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
(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
Universal Air Conditioning Unit
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Table of Contents
Troubleshooting
