Rheem A17 Series User Manual

2
CONTENTS
1.0 IMPORTANT SAFETY INFORMATION ......................................................3
2.0 GENERAL INFORMATION ................. ...................................................4-5
2.1 Introducon ..........................................................................................4
2.2 Agency Performance Audit Tesng Noce ..........................................4
2.3 Importance of a Quality Installaon ....................................................4
2.4 System Sizing and Selecon .................................................................4
2.5 Importance of Proper Indoor/Outdoor Match-Ups ............................5
2.6 Checking Product Received ..................................................................5
2.7 Compressor Break-In Noce ................................................................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 .................................. .................................................7-26
4.1 Tools & Refrigerant ...............................................................................7
4.1.1 Tools Required for Installing & Servicing R-410A Models ........7
4.1.2 Specicaons of R-410A ...........................................................7
4.1.3 Quick Reference Guide for R-410A ...........................................7
4.2 Choosing a Locaon . ............................................................................8
4.2.1 Allowable Clearances ................................................................8
4.2.2 Operaonal Issues Related to Unit Locaon ............................8
4.2.3 Corrosive Environments ...........................................................9
4.2.4 Customer Sasfacon Issues ....................................................9
4.3 Mounng Unit ......................................................................................9
4.3.1 Unit-Mounng Methods ..........................................................9
4.3.2 High Wind and Seismic Tie-Down Methods ............................9
4.3.3 Elevang Unit ..........................................................................10
4.4 Refrigerant Line Set Selecon ............................................................10
4.4.1 Replacing Exisng Systems .....................................................10
4.4.2 Line Set Length and Fing Losses ..........................................10
4.4.3 Liquid Line Selecon ...............................................................11
4.4.4 Sucon Line Selecon .............................................................11
4.4.5 Long Line Length Consideraons ............................................14
4.4.5.1 Determining if Long Line Set Length Requirements Apply . .......14
4.4.5.2 Oil Return to Compressor ..................................................14
4.4.5.3 Refrigerant Migraon During O Cycle .............................14
4.4.5.4 Maximum Liquid Pressure Drop ........................................14
4.4.5.5 Liquid Line Refrigerant Flashing .. .......................................14
4.4.5.6 Compressor Oil Level Adjustment .....................................15
4.4.5.7 Capacity Losses ..................................................................15
4.5 Line Set Installaon ............................................................................16
4.5.1 Important Tubing Installaon Pracces .................................16
4.5.2 Relave Locaon of Indoor and Outdoor Units .....................17
4.5.2.1 Indoor and Outdoor Unit Near Same Level .......................17
4.5.2.2 Outdoor Unit Below Indoor Unit .......................................18
4.5.2.3 Outdoor Unit Above Indoor Unit .......................................19
4.5.3 Tubing Connecons ................................................................20
4.6 Inial Leak Tesng ..............................................................................21
4.7 Evacuaon ... .......................................................................................21
4.8 Final Leak Tesng ................................................................................22
4.9 Control Wiring ....................................................................................22
4.9.1 EcoNet
TM
Communicaons .....................................................22
4.9.2 EcoNet
TM
Control Center or Thermostat Installaon .............22
4.9.3 EcoNet
TM
Communicaon Wiring Connecons ......................22
4.9.4 Convenonal 24VAC Thermostat Control Wiring Connecons ......23
4.10 Power Wiring ....................................................................................24
4.11 Grounding . ........................................................................................25
5.0 SYSTEM START-UP AND REFRIGERANT CHARGING .........................25-28
5.1 System Start-Up Overview ..................................................................25
5.2 Inial Power Up and EcoNet
TM
Communicaon Vericaon ......................25
5.3 EcoNet
TM
Control Center Set-Up .........................................................25
5.4 Inial System Start-Up ........................................................................25
5.5 Indoor Air-Flow Vericaon ................................................................26
5.6 Refrigerant Charging ...........................................................................27
5.6.1 Measurement Device Set-Up ..................................................27
5.6.2 Preliminary Charging by Weight .............................................27
5.6.3 Preliminary Charging by Pressures ..........................................27
5.6.4 Final Charging by Liquid Subcooling .......................................28
5.6.5 R-410A Temperature Pressure Chart ......................................28
5.7 Compleng Installaon ..............................................................28
6.0 SEQUENCE OF OPERATION .............. ....................................................29
6.1 Cooling Mode ......................................................................................29
6.2 On-Demand Cooling Dehumidicaon ..............................................29
7.0 COMPONENTS & CONTROLS ........... ...............................................29-33
7.1 Compressor .........................................................................................29
7.2 Compressor/Fan Motor Capacitor ......................................................29
7.3 Compressor Contactor ........................................................................29
7.4 Compressor Crankcase Heater ............................................................29
7.5 EcoNet
TM
2-Stage Outdoor Control (TSODC) ......................................30
7.5.1 TSODC Features and Connecons ..........................................30
7.5.2 Overview of TSODC Operaon ................................................31
7.5.3 Control Board Replacement ....................................................32
7.6 High and Low Pressure Controls .........................................................32
7.7 Outdoor Ambient Temperature Thermistor .......................................33
7.8 Outdoor Fan Blade ..............................................................................33
7.9 Outdoor Fan Motor .............................................................................33
8.0 ACTIVE COMPRESSOR PROTECTION ....................................................33
9.0 ACCESSORIES .......................................................................................34
9.1 Low Ambient Kit ..................................................................................34
9.2 Hard Start Kit .......................................................................................3 4
9.3 Crankcase Heater ................................................................................34
9.4 Compressor Sound Enclosure .............................................................34
10.0 DIAGNOSTICS AND TROUBLESHOOTING ......................................35-48
10.1 Test and Fault Recall Mode ...............................................................35
10.1.1 Test Mode ..............................................................................35
10.1.2 Fault Recall Mode ..................................................................35
10.1.3 Clearing Fault History ............................................................35
10.2 Status and Diagnosc Codes .............................................................36
10.3 Electrical Checks Flowchart ...............................................................39
10.4 Cooling Mechanical Checks Flowchart .............................................40
10.5 Checking Temperature Sensors ........................................................41
10.6 General Troubleshoong Guide ........................................................42
10.7 Service Analyzer Charts .....................................................................43
10.8 Troubleshoong Tips .........................................................................48
11.0 OUTDOOR UNIT MAINTENANCE ........................................................49
11.1 Outdoor Coil Cleaning .......................................................................49
11.2 Cabinet Cleaning and Care ................................................................49
11.3 Motor Lubricaon .............................................................................49
11.4 Replacement Parts ............................................................................49
12.0 WIRING DIAGRAMS ......................................................................50-51
12.1 2, 4, and 5 Ton Models – ECM Fan Motor ........................................50
12.2 3 Ton Model – PSC Fan Motor ..........................................................51
Contents

Rheem A17 Series Specifications

General

Brand	Rheem
Model	A17 Series
Category	Heat Pump
Language	English