Rheem Raypak 8450 User Manual

E󰀨ective: 11-20-20
Replaces: Catalog# 6000.56
P/N 241909 Rev. 1
Heat Pump Pool &
Spa Heater
Models 2450, 3450, 4450,
5450, 6450, 6450PD, 6450HC,
8450 & 8450HC
FOR YOUR SAFETY: Do not store or use gasoline or other ammable vapors and
liquids or other combustible materials in the vicinity of this or any other appliance.
To do so may result in an explosion or re.
NOTE: The instructions in this manual are for the use of qualied individuals specially trained and experienced
in the installation and maintenance of this type of equipment and related system components. Installation and
service personnel are required by some states to be licensed. Persons not qualied shall not attempt to install,
service, or maintain this equipment.
This manual should be maintained in legible condition and kept adjacent to the heat pump pool heater or in a
safe place for future use.
INSTALLATION AND
OPERATION MANUAL

Rheem Raypak 8450 Specifications

General

Brand	Rheem
Model	Raypak 8450
Category	Heat Pump
Language	English

Summary

1. WARNINGS

Operational Safety Precautions

Covers safe water temperatures, chemical handling, and refrigerant safety for unit operation.

3. WATER CHEMISTRY

Recommended Water Chemistry Levels

Guidelines for maintaining optimal water chemistry for pool and spa to protect the heater.

4. INSTALLATION CONSIDERATIONS

6. Hurricane Tie-Down Instructions (Model 2450)

7. Hurricane Tie-Down Instructions (Models 3450-4450)

8. Hurricane Tie-Down Instructions (Models 5450-8450)

Tie-Down Clip Layout and Offsets

Diagrams and specifications for tie-down clip placement and dimensions for secure installation.

Anchor Schedule and Substrate Requirements

5. ELECTRICAL CONNECTIONS

Wiring Compliance and Safety

Adherence to codes, use of flexible conduit, and electrician requirements for safe installation.

Component and System Connections

6. WATER CONNECTIONS

Connection Procedures and Warnings

Instructions for connecting inlet/outlet, pipe types, and warnings about chemical feeders.

Required Valves and Bypass

9. USER MODES

Basic Operational Modes

Details on Pool Heat, Spa, and Timed Spa modes for Heat Only/Power Defrost models.

10. CONTROL MENUS

User Menu Access

Installer/Service Menu Access

Procedure to access the Installer/Service menu for advanced setup and troubleshooting.

11. USER MENU CONFIGURATION

Basic Settings

Pump Period Programming

Setting pump on/off times, speeds, and valve positions for scheduled operation.

12. CONTROL SETTINGS DETAILS

Advanced Pump and Valve Control

Configuration of additional pump periods, speeds, and 3-way valve positions for scheduling.

13. INSTALLER/SERVICE MENU - HEAT ONLY

Heat Only Configuration Parameters

Setup options for Heat Only models: Set Current Time, Pump Periods, and Valve Control.

Pump Operation Configuration

15. INSTALLER/SERVICE MENU - SYSTEM PARAMETERS

17. INSTALLER/SERVICE MENU - POWER DEFROST

Pump and Valve Scheduling

Configuring pump periods, speeds, and 3-way valve positions for Power Defrost models.

Faults and Operating Metrics

18. INSTALLER/SERVICE MENU - POWER DEFROST DETAILS

19. INSTALLER/SERVICE MENU - HEAT/COOL (PART 1)

21. INSTALLER/SERVICE MENU - HEAT/COOL CONFIGURATION

Basic Settings and Remote Pool

Pump Period Scheduling

Configuring pump on/off times, speeds, and 3-way valve positions for scheduled periods.

22. INSTALLER/SERVICE MENU - HEAT/COOL DETAILS

Fault History and Operational Metrics

23. INSTALLER/SERVICE MENU - SYSTEM MONITORING

Pump and Valve Operation Settings

Auxiliary Mode Control

Setting up auxiliary outputs for external uses like AUX OFF, REMOTE OUT, and EXT HEAT.

11. CONTROL SETTINGS

User Interface and Temperature Control

13. ADDITIONAL FEATURES

Pump, Lockout, and Control Security

Details on pump control, low ambient lockout, and control panel locking features.

14. AUXILIARY FUNCTIONS

Auxiliary Mode Control Options

Details on AUX OFF, AUX OUTPUT, REMOTE OUT, and EXT HEAT modes for auxiliary outputs.

Remote Pool Operation Mode

15. OPERATING MODES AND STATES

Pool Heating and Cooling Modes

Description of Pool Heat, Pool Cool, Pool Auto, and Timed Spa modes for user operation.

Compressor Operation and Faults

16. SYSTEM PROTECTION AND CONTROL

Defrost Operation and Valve Control

Explanation of defrost cycles for different models and 3-way valve control logic.

Safety Limits and Power

17. SAFETY SWITCHES AND OPERATION

Pressure Switch Lockouts

Details on high and low pressure switch lockouts, their causes, and reset procedures.

Water Pressure and Sequence of Operation

20. MAINTENANCE

Routine Cleaning and Care

21. TROUBLESHOOTING

Unit Not Heating Troubleshooting

Diagnosing why the unit is running but not heating, checking water flow and airflow.

Unit Not Running Troubleshooting

Steps to diagnose why the unit is not running, checking display and settings.

22. OPERATIONAL STATUS MESSAGES

Understanding Status Messages

23. ERROR MESSAGES

Interpreting Error Codes

List of error messages, their descriptions, and recommended troubleshooting steps.

Control Faults

Specific error codes for control faults (1-8) and their troubleshooting.

24. SERVICE CALL VERIFICATION AND ACCESS

Pre-Service Checks and Defaults

Accessing Internal Components

28. WIRING DIAGRAM

208V/230V Single-Phase Digital Models

Wiring diagram for digital models, showing connections for compressor, fan, sensors, and outputs.

Wiring Legend and Notes

29. REMOTE CONTROL DEVICE INSTALLATION

Heater 2-Wire Controllers (Heat Only)

3-Wire and Chill Mode Controllers