Table of Contents
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CONTENTS
Safety Information ............................................. 3
Efficiency Testing Notice ..............................................3
General Information ........................................... 4
Checking Product Received ........................................4
Application ...................................................................4
Electrical and Physical Data .........................................5
Specifications ...............................................................6
Proper Installation ........................................................6
Installation ......................................................... 7
Choosing a Location .......................................... 7
Operational Issues........................................................7
Corrosive Environment .................................................7
Space Limitations .........................................................8
Customer Satisfaction Issues ......................................8
Unit Mounting ...............................................................8
Tie Down Method .........................................................8
Tools and Refrigerant ........................................ 9
Servicing R-410A Models ............................................9
Specifications of R-410A .............................................9
Guide for R-410A .........................................................9
Replacement Units ...........................................10
Indoor Coil ........................................................10
Location ......................................................................10
Interconnecting Tubing .....................................10
Refrigerant Level Adjustment .....................................11
Interconnecting Tubing and Fitting Losses ................11
Liquid Line Selection ..................................................11
Long Line Set Applications ........................................12
Oil Level Adjustment ..................................................12
Suction Line Selection ...............................................13
Refrigerant Migration ..................................................13
Tubing Installation ......................................................18
Tubing Connections ...................................................19
Leak Testing ...............................................................20
Condensing Units ............................................ 21
Equipped with EcoNet™ ............................................21
Dual 7-Segment LED .................................................21
Line Voltage Connector ..............................................21
Thermostat Connector ...............................................21
Low Volt Fuse .............................................................22
Low Pressure Control .................................................22
High Pressure Control ................................................22
Ambient Temperature Sensor .....................................22
UP and SELECT Buttons ...........................................22
Memory Card .............................................................22
EcoNet Communication System™ ICC Control ........22
2
Condensing Units ............................................23
Active Compressor Protection Mode ...............24
Test and Fault Recall Modes ..................................... 25
Conventional Thermostat Wiring .....................30
Thermostat Wiring Diagrams ...........................31
ICC Control Operation .....................................32
ICC Control Operation ............................................... 32
Test and Fault Recall Modes ...........................34
Electrical Wiring ..............................................35
Power Wiring ............................................................. 35
Grounding .................................................................. 35
Control Wiring ..................................................35
Noncommunication Thermostat
Wiring Diagrams ........................................................ 36
Power Wiring ............................................................. 37
Grounding .................................................................. 37
Start-Up ........................................................... 38
Checking Airflow ............................................. 38
Evacuation Procedure ............................................... 39
Final Leak Testing .......................................................39
Checking Refrigerant Charge ...........................40
Charging Units ............................................................40
Confirm ID Airflow and Coils are Clean .....................40
Measurement Device Setup .......................................40
Charging by Weight ....................................................40
Gross Charging by Pressure ......................................41
Final Charge by Subcooling .......................................41
Finishing Up Installation ............................................. 42
Components and Controls ............................... 43
Crankcase Heat (CCH) ......................................43
Controls (HPC and LPC) ................................... 43
Accessories ..................................................... 34
Single Pole Compressor ............................................44
Time-Delay Control ....................................................44
Low Ambient Control (LAC) .......................................44
Hard-Start Components ....................................44
Diagnostics ...................................................... 45
Electrical Checks Flowchart .......................................45
Cooling Mechanical Check Flowchart .......................46
General Troubleshooting Chart ..................................47
Service Analyzer Charts ....................................... 48-52
Cooling Troubleshooting Tips ....................................53
Wiring Diagrams ......................................... 54-55
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Table of Contents
Troubleshooting
