EcoNet A2024AJVCA, Руководство по установке

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CONTENTS
1.0 IMPORTANT SAFETY INFORMATION.......................................................3
2.0 GENERAL INFORMATION.....................................................................4-5
2.1 Introduction..........................................................................................4
2.2 Agency Performance Audit Testing Notice...........................................4
2.3 Importance of a Quality Installation.....................................................4
2.4 System Sizing and Selection..................................................................4
2.5 Importance of Proper Indoor/Outdoor Match-Ups..............................5
2.6 Checking Product Received...................................................................5
2.7 Compressor Break-In Notice ................................................................5
3.0 UNIT SPECIFICATIONS..........................................................................5-6
3.1 Model Number Nomenclature and Available Models..........................5
3.2 Electrical and Physical Data ..................................................................6
4.0 INSTALLATION...................................................................................7-24
4.1 Tools & Refrigerant .............................................................................7
4.1.1 Tools Required for Installing & Servicing R-410A Models...........7
4.1.2 Specifications of R-410A..............................................................7
4.1.3 Quick Reference Guide for R-410A..............................................7
4.2 Choosing a Location.............................................................................8
4.2.1 Allowable Clearances..................................................................8
4.2.2 Operational Issues Related to Unit Location...............................8
4.2.3 Corrosive Environments..............................................................9
4.2.4 Customer Satisfaction Issues.......................................................9
4.3 Mounting Unit......................................................................................9
4.3.1 Unit-Mounting Methods ............................................................9
4.3.2 High Wind and Seismic Tie-Down Methods ................................9
4.3.3 Elevating Unit ...........................................................................10
4.4 Refrigerant Line Set Selection............................................................10
4.4.1 Replacing Existing Systems.......................................................10
4.4.2 Line Set Application .................................................................10
4.4.2.1 Oil Return to Compressor ...........................................10
4.4.2.2 Refrigerant Migration During Off Cycle.......................10
4.4.2.3 Maximum Liquid Pressure Drop..................................11
4.4.2.4 Liquid Line Refrigerant Flashing..................................11
4.4.2.5 Compressor Oil Level Adjustment...............................11
4.4.2.6 Capacity Losses ...........................................................11
4.4.3 Line Set Length and Fitting Losses ..........................................11
4.4.4 Liquid Line Selection ...............................................................12
4.4.5 Suction Line Selection.............................................................12
4.5 Line Set Installation ...........................................................................15
4.5.1 Important Tubing Installation Practices...................................15
4.5.2 Relative Location of Indoor and Outdoor Units.......................16
4.5.2.1 Indoor and Outdoor Unit Near Same Level................16
4.5.2.2 Outdoor Unit Below Indoor Unit................................17
4.5.2.3 Outdoor Unit Above Indoor Unit ...............................18
4.5.3 Tubing Connections ................................................................19
4.6 Initial Leak Testing.............................................................................20
4.7 Evacuation .........................................................................................20
4.8 Final Leak Testing ..............................................................................21
4.9 Control Wiring ...................................................................................21
4.9.1 EcoNet
TM
Communications ......................................................21
4.9.2 EcoNet
TM
Control Center Installation .......................................21
4.9.3 EcoNet
TM
Communication Wiring Connections .......................21
4.9.4 Conventional 24VAC Thermostat Control Wiring Connections ........22
4.10 Power Wiring.....................................................................................23
4.11 Grounding..........................................................................................24
5.0 SYSTEM START-UP AND REFRIGERANT CHARGING...........................24-28
5.1 System Start-Up Overview.................................................................24
5.2 Initial Power Up and EcoNet
TM
Communication Verification.............24
5.3 EcoNet
TM
Control Center Set-Up ........................................................24
5.4 Initial System Set-Up .........................................................................24
5.5 Entering Charging Mode Using EcoNet
TM
Control Center Service Menu .........25
5.6 Entering Charging Mode When Using a Conventional 24VAC Thermostat ...25
5.7 Indoor Air-Flow Verification ..............................................................26
5.8 Refrigerant Charging .........................................................................26
5.8.1 Measurement Device Set-Up ..................................................27
5.8.2 Preliminary Charging by Weight ..............................................27
5.8.3 Preliminary Charging by Pressures ..........................................27
5.8.4 Final Charging by Liquid Subcooling ........................................28
5.8.5 R-410A Temperature Pressure Chart .......................................28
5.9 Completing Installation .....................................................................28
6.0 NORMAL SEQUENCE OF OPERATION..................................................29-30
6.1 Cooling Mode.....................................................................................29
6.2 On-Demand Cooling Dehumidification..............................................29
6.3 Low Ambient Cooling Operation .......................................................29
6.4 Sequence of Operation for Conventional 24VAC Thermostat Controls ...........30
7.0 COMPONENTS AND CONTROLS......................................................30-36
7.1 Accumulator.......................................................................................30
7.2 Choke/Indoor ....................................................................................30
7.3 Coil Temperature Thermistor.............................................................30
7.4 Compressor.........................................................................................31
7.5 Compressor Sump Thermistor ..........................................................31
7.6 Discharge Line Thermistor ................................................................31
7.7 EcoNet
TM
Variable Speed Outdoor Control (VSODC)..........................32
7.7.1 Board Features and Connections .............................................32
7.7.2 TEST & SW2 Buttons ................................................................33
7.7.3 Memory Card ...........................................................................33
7.7.4 Menu Structure ........................................................................33
7.7.5 Replacement of the VSODC ......................................................33
7.8 Filter & Ferrite Rings ...........................................................................34
7.9 High Pressure Control .........................................................................34
7.10 Outdoor Ambient Temperature Thermistor ......................................34
7.11 Outdoor Fan Motor ............................................................................35
7.12 Outdoor Fan Blade .............................................................................35
7.13 Power Inverter Compressor Control ..................................................35
7.14 Suction Pressure Transducer ..............................................................36
7.15 Suction Temperature Thermistor .......................................................36
8.0 ACTIVE SYSTEM PROTECTION FEATURES..........................................37-39
8.1 Minimum Run Timer ..........................................................................37
8.2 Oil Return Cycle ..................................................................................37
8.3 Oil Dilution .........................................................................................37
8.4 Off-Cycle Refrigerant Migration – Stator Heat ..................................37
8.5 High Discharge Temperature ..............................................................37
8.6 High Discharge Pressure .....................................................................37
8.7 Low Suction Pressure/Loss of Charge ................................................38
8.8 Compressor Shut-Down Sequence for High or Low Refrigerant Pressure Fault ....38
8.9 Overcurrent and Current Imbalance ..................................................38
8.10 Compressor Operation Outside Envelope .........................................38
8.11 Over and Under Voltage .....................................................................39
8.12 Inverter Over Temperature ................................................................39
8.13 Controls and Communication Malfunction .......................................39
8.14 Sensor Failure Default Operation .......................................................39
8.15 Exiting Active Protection Lock-Out Mode ..........................................39
9.0 DIAGNOSTICS AND TROUBLESHOOTING.........................................40-66
9.1 Fault Recall Procedure .......................................................................40
9.2 Compressor/Fan Motor Test Mode ...................................................40
9.3 Status and Diagnostic Codes ..............................................................41
9.4 Active Protection Fault Details ..........................................................50
9.5 Electrical Checks Flowchart ...............................................................56
9.6 Cooling Mechanical Checks Flowchart .............................................57
9.7 Checking Transducers and Temperature Sensors ..............................58
9.8 General Troubleshooting Guide ........................................................60
9.9 Service Analyzer Charts .....................................................................61
9.10 Troubleshooting Tips .........................................................................66
10.0 OUTDOOR UNIT MAINTENANCE .........................................................67
10.1 Outdoor Coil Cleaning .....................................................................67
10.2 Cabinet Cleaning and Care ..............................................................67
10.3 Motor Lubrication ...........................................................................67
10.4 Replacement Parts ..........................................................................67
11.0 WIRING DIAGRAM ..............................................................................68
12.0 APPENDIX ......................................................................................69-70
12.1 Agency Performance Audit Test Instructions ....................................69
Contents