Rheem A18AZ Series Manuals

Manuals and User Guides for Rheem A18AZ Series. We have 1 Rheem A18AZ Series manual available for free PDF download: Installation Instructions Manual

Rheem A18AZ Series Installation Instructions Manual (48 pages)

VARIABLE SPEED R-410A HEAT PUMP/AIR CONDITIONER OUTDOOR UNITS

Brand: Rheem | Category: Air Conditioner | Size: 9.8 MB

Table of Contents
2
Important Safety Information
3
General Information
4
Introduction
4
Importance of Quality Installation
4
System Sizing and Selection
4
Importance of Proper Indoor/Outdoor Match-Ups
5
Checking Product Received
5
Compressor Break-In Notice
5
Unit Specifications
5
Model Number Nomenclature and Available Models
5
List of Tables Table 1: Available Models
5
Unit Specifications
6
Electrical and Physical Data
6
Installation
7
Tools Required for Installing and Servicing R-410A Models
7
Specifications of R-410A
7
Quick-Reference Guide for R-410A
7
Tools and Refrigerant
7
Choosing a Location
8
Allowable Clearances
8
Operational Issues Related to Unit Location
8
Corrosive Environment
8
Customer Satisfaction Issues
9
Unit Mounting
9
Unit Mounting Methods
9
High Wind and Seismic Tie-Down Methods
9
Elevating Unit
9
Refrigerant Line Set Selection
10
Replacing Existing Systems
10
Line Set Application Considerations
10
Oil Return to Compressor
10
Refrigerant Migration During off Cycle
10
Maximum Liquid Pressure Drop
10
Liquid Line Refrigerant Flashing
10
Oil Level Adjustment for Long Line Set Applications
10
Capacity Losses
10
Liquid Line Selection
11
Vapor Line Selection
12
Line Set Installation
14
Important Tubing Installation Practices
14
Relative Location of Indoor and Outdoor Units
15
Outdoor Unit below Indoor Coil (Long Line Set Applications)
16
Tubing Connections
18
Initial Leak Testing
19
Evacuation
19
Final Leak Testing
20
Control Wiring
20
Econet ™ Communications
20
Econet ™ Control Center Installation
20
Econet ™ Communication Wiring Connections
20
Conventional 24VAC Thermostat Control Wiring Connections
21
TM Wiring
21
Power Wiring
22
Grounding
22
System Start-Up & Refrigerant Charging
23
System Start-Up Overview
23
Initial Power-Up
23
And Econet ™ Communication Verification
23
Econet™ Control Center Set-Up
23
Initial System Start-Up
23
Entering Charge Mode Using Econet ™ Control Center Service Menu
23
Entering Charge Mode When Using a Conventional 24VAC Thermostat
23
TM Switched off
23
Indoor Air-Flow Verification
24
Refrigerant Charging
24
Measurement Device Set-Up
25
Preliminary Charging by Weight
25
Preliminary Charging by Pressures (Optional)
25
R-410A Temperature Pressure Chart
26
Completing Installation
26
Final Charging by Liquid Subcooling
26
Normal Sequence of Operation
27
Cooling Mode
27
On-Demand Cooling Dehumidification
27
Low Ambient Cooling Mode
27
Heating Mode
27
Supplemental Electric Heat in Heating Mode
28
Dual Fuel Applications - Heating Mode
28
Demand Defrost
28
Sequence of Operation for Conventional 24VAC Thermostat Controls
29
Board Features and Connections
30
Components & Controls
30
Power Inverter Compressor Control
31
Active System Protection Features
32
Minimum Run Timer
32
Oil Return Cycle
32
Off-Cycle Refrigerant Migration - Stator Heat
32
High Discharge Temperature
32
High Discharge Pressure
32
Low Suction Pressure/Loss of Charge
32
Compressor Shut-Down Sequence for High or Low Refrigerant Pressure Fault
33
Overcurrent and Current Imbalance
33
Compressor Operation Outside Envelope
33
Over and under Voltage
33
Inverter over Temperature
33
Controls and Communication Malfunction
33
Sensor Failure Default Operation
33
Exiting Active Protection Lock-Out Mode
33
Diagnostics & Troubleshooting
34
Checking Transducers & Temperature Sensors
36
Service Analyzer Charts
39
Troubleshooting Tips
43
Outdoor Unit Maintenance
44
Outdoor Coil Cleaning
44
Cabinet Cleaning and Care
44
Motor Lubrication
44
Replacement Parts
44
Wiring Diagram
45
Appendix
47
Agency Performance Audit Test Instructions
47

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Rheem A18AZ Series Installation Instructions Manual (48 pages)

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