Table of Contents
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INSTALLATION AND
OPERATION MANUAL
Gas-Fired Pool
and Spa Heater
Brass ASME and Polymer
Atmospheric Heat Exchanger Models
206A, 266, 266A, 336A, 399, and 406A
WARNING: If the information in the instructions is not followed exactly, a fire or explosion may result
A
causing property damage, personal injury or death.
- Do not store or use gasoline or other flammable 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 fire.
- WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electrical switch; do not use any phone in your building.
• Immediately call your gas supplier from a neighbor's phone. Follow the gas supplier's instructions.
• If you cannot reach your gas supplier, call the fire department.
- Installation and service must be performed by a qualified installer, service agency or the gas supplier.
This manual should be maintained in legible condition and kept adjacent to the heater or in a safe place for future
reference.
Catalog No. 6000.59AH
Effective: 12-16-19
Replaces: 11-15-19
P/N 241236 Rev. 35
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Table of Contents
Related Manuals for Raypak B-R206A
Summarization of Contents
Safety Warnings and Precautions
Hazard Alert Definitions
Explains DANGER, WARNING, CAUTION, and NOTE symbols used in the manual.
Installation and Service Safety
Stresses the importance of qualified personnel for installation and service.
Operational Safety Hazards
Covers risks from venting, flammable materials, gas leaks, and high temperatures.
Material and Environmental Safety
Addresses silica hazards, air contamination, and location considerations.
Water Chemistry and Maintenance
Water Chemistry Requirements
Details recommended water chemistry levels for pools and spas.
Automatic Chlorinators and Feeders
Discusses proper use of chemical feeders and chlorinators.
Elevated Water Temperature Hazards
Provides safety guidelines regarding high water temperatures in spas and hot tubs.
Pre-Installation Checks and Specifications
Equipment Inspection and Certification
Covers receiving equipment, its ratings, and certifications.
Environmental and Component Specs
Details elevation, ambient temperature, and heater component ratings.
Installation Procedures and Codes
Installation Codes and Standards
Outlines compliance requirements with national and local codes.
Clearances and Location Guidelines
Provides required clearances and location considerations for safe installation.
Installation Personnel and Safety
Emphasizes qualified personnel and installation warnings.
Vent Piping and Power Vent Options
Vent Piping Requirements and Best Practices
Covers indoor venting, pipe sizing, and installation guidelines.
D-2 Power Vent Kit Information
Details the D-2 power vent kit, its application, and part numbers.
Gas Supply and Pressure Requirements
Gas Connection and Safety
Covers gas supply connections, sediment traps, and pressure testing safety.
Supply Pressure and Regulator Adjustment
Specifies required gas pressures and how to adjust the regulator.
Gas Pressure Adjustment Locations
Millivolt and Digital Gas Valve Adjustments
Illustrates gas pressure adjustment points on various gas valves.
Water Flow and Gas Pipe Sizing
Gas Pipe Sizing Guidelines
Provides guidelines for sizing gas pipes based on length and gas type.
Water Flow Rate and Pressure Drop
Details flow rates and corresponding pressure drops for water in heat exchangers.
Heat Exchanger Components and Protection
Header Connections and ProTek Shield
Instructions for connecting headers and installing the ProTek Shield assembly.
Heat Exchanger Pressure Drop Data
Lists pressure drops for brass heat exchangers at various flow rates.
Internal Components and Bypass Valves
Unitherm Governor and Bypass Valves
Explains the Unitherm Governor and internal/external bypass valves.
ProTek Shield Assembly Replacement
Step-by-step instructions for replacing the ProTek Shield Assembly.
Valve Adjustments and Heat Exchanger Maintenance
Bypass Valve Adjustment and PRV Installation
Guides for adjusting bypass valves and installing pressure relief valves.
Heat Exchanger Reversal Procedure
Steps for reversing heat exchanger connections on residential models.
Plumbing Diagrams and Installation
Single and Multiple Heater Plumbing Layouts
Recommended piping diagrams for single and multiple heater installations.
Electrical Wiring and Component Identification
Component Wiring Locations and Sensor Installation
Identifies wiring locations and guides sensor installation for different models.
Millivolt vs. Digital Model Wiring
Differentiates wiring requirements for millivolt and digital models.
Power Supply and Transformer Wiring
Heater Wiring Connections
Shows general wiring locations, including bonding lugs and transformer connections.
120/240 VAC Wiring
Details how to connect the heater for 120 VAC and 240 VAC power supplies.
Millivolt Wiring Diagram
Millivolt System Wiring Schematic
Provides a detailed wiring diagram for millivolt models, including color codes.
Digital Wiring Diagram
Digital System Wiring Schematic
Presents a detailed wiring diagram for digital models, including color codes.
Heater Controls and Adjustments
Control Locations and Panel Removal
Identifies control components and provides instructions for panel removal.
Millivolt Model Temperature Adjustment
Explains how to adjust the setpoint temperature on millivolt models.
Digital Control Operation and Settings
Digital Control Interface and Modes
Describes the touchpad, LCD display, and mode selection for digital models.
Service Menu and Diagnostics
Explains how to access service menus and view diagnostic indicators like flame strength and supply voltage.
Digital Control Features and Settings
Fault History and Programmable Events
Guides on viewing fault history, setting defaults, and clearing faults.
Temperature Settings and Control Lockout
Covers setting max temperatures, changing scales, and using the control lockout feature.
Heater Status and Diagnostics
Heater Status Messages (No Faults)
Displays normal operating messages like Heating, Spark, No Demand.
Heater Status Messages (Demand for Heat)
Messages displayed when there is a demand for heat, indicating system status.
Heater Status Messages (Active Faults)
Lists and explains fault codes and error messages for troubleshooting.
Remote Control Operation
Remote Control Installation Precautions
Important precautions and wiring guidelines for remote control installation.
Activating Remote Function and Wiring
Steps to activate the remote function and wiring details for digital models.
Remote Control Wiring Details
2-Wire and 3-Wire Remote Control Setup
Instructions for connecting 2-wire and 3-wire remote controls.
Time Clock/Fireman's Switch Integration
How to connect a time clock or fireman's switch for heater control.
Water Pressure Switch and Pump Operation
Fireman's Switch Wiring and Water Pressure Switch Function
Details fireman's switch wiring and the purpose of the water pressure switch.
Water Pressure Switch Adjustment and Pump Considerations
Guides for adjusting the pressure switch and notes on two-speed pumps.
Safety Switches and Component Removal
Flame Roll-Out and High Limit Switches
Explains safety switches and procedures for their removal.
Burner Tray and Gas Valve Removal
Procedures for removing the burner tray and gas valve for service.
Burner, Pilot, and Heat Exchanger Service
Burner, Pilot, and Orifice Service
Steps for removing and servicing burners, pilots, and orifices.
Heat Exchanger Removal and Cleaning
Detailed steps for removing and cleaning the heat exchanger tubes.
Desooting Procedure
Guidelines for safely removing soot buildup from the heater.
Component Replacement and Cleaning
Combustion Chamber and Immersion Well Replacement
Procedures for removing the combustion chamber and replacing immersion wells.
Unitherm Governor Replacement
Procedures for replacing the Unitherm Governor on different models.
Heater Operation and Start-Up
Pre-Start-Up Checks and Visual Inspection
Ensures area is clear, water is flowing, and checks pilot/burner flame appearance.
Water Pressure Switch Verification
Importance of checking the water pressure switch for proper shut-off.
Millivolt System Operation and Safety
Millivolt Lighting Instructions
Detailed steps for safely lighting the pilot and starting the millivolt heater.
Millivolt System Shut-Off Procedure
Procedures for safely turning off gas to the millivolt appliance.
Digital System Operation and Safety
Digital Lighting Instructions
Step-by-step guide for lighting the pilot on digital ignition models.
Digital System Shut-Off Procedure
Procedures for safely turning off gas to digital ignition appliances.
Maintenance, Cold Weather, and Winterizing
Routine Maintenance Checks
Recommended inspections for soot, burners, controls, and flames.
Cold Climate Operation and Winterizing
Precautions for cold weather and steps for winterizing the heater.
Troubleshooting Guide
Common Heater Problems and Solutions
A table listing common issues, their causes, and corrective actions.
Millivolt Troubleshooting Flow Chart
Millivolt System Diagnostics
A flow chart to diagnose issues with millivolt pilot and burner operation.
Digital Troubleshooting Flow Chart
Digital System Diagnostics
A flow chart for diagnosing problems with digital ignition systems.
Digital Control Logic and Diagnostics
Digital Control Logic Flow Chart
A flow chart illustrating the control logic for digital models.
Diagnostic Readouts Interpretation
Explains how to interpret diagnostic readouts for sensor failures and other issues.
Replacement Parts Information
Ordering Replacement Parts
Key information needed when ordering replacement parts.
Manufacturer Contact Information
Provides the manufacturer's address for ordering parts.
Illustrated Parts List
Component Identification Diagram
An exploded view diagram labeling various heater components.
Illustrated Parts List - Continued
ASME Header Parts Identification
Part illustrations for ASME brass and cast iron header units.
Illustrated Parts List - Polymer Headers
Polymer Header Parts and Pilot Assemblies
Part illustrations for polymer headers and pilot assemblies.
Parts List by Model
Burner, Control, and Heat Exchanger Parts
Lists part numbers for burners, controls, and heat exchangers by model.
Parts List by Model - Continued
Metal Heat Exchanger and Miscellaneous Parts
Part numbers for metal heat exchangers and miscellaneous components by model.
Parts List by Model - Pilots and Venting
Pilot Assembly and Venting Part Numbers
Part numbers for pilot assemblies, venting, and conversion kits by model.
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