Raypak 266 User Manual

Gas-Fired Pool
and Spa Heater
Catalog No. 6000.59AH
E󰀨ective: 12-16-19
Replaces: 11-15-19
P/N 241236 Rev. 35
INSTALLATION AND
OPERATION MANUAL
Brass ASME and Polymer
Atmospheric Heat Exchanger Models
206A, 266, 266A, 336A, 399, and 406A
This manual should be maintained in legible condition and kept adjacent to the heater or in a safe place for future
reference.
AA
WARNING: If the information in the instructions is not followed exactly, a re or explosion may result
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.
6000.59AH_Atmospheric.indd 1 12/17/2019 2:12:45 PM

Raypak 266 Specifications

General

Model	266
BTU Input	266, 000 BTU/hr
Fuel Type	Natural Gas or Propane
Efficiency	82% Thermal Efficiency
Water Connections	2" NPT
Ignition Type	Electronic Ignition
Type	Pool Heater
Water Flow Rate	120 GPM
Warranty	5 years heat exchanger

Summary

Installation and Operation Manual

Introduction and Safety Warnings

Provides an overview of the manual and critical safety information, including gas leak procedures.

Critical Safety Warnings

General Hazard Definitions and Precautions

Explains safety alert symbols and general hazard warnings.

Specific Material and Installation Hazards

Details risks associated with RCF, installation, gas, and environmental factors.

Water Chemistry Management

Water Chemistry Requirements and Feeders

Installation Requirements

Codes, Clearances, and Location Safety

Outlines codes, clearances, and safety considerations for heater placement.

Venting Systems

Vent Piping and D-2 Power Vent Kit

Gas Supply Connections

Gas Piping, Pressure, and Regulators

Covers gas supply connections, pressure requirements, and regulators.

Gas Pressure Adjustments

Adjusting Millivolt and Electronic Gas Valves

Heat Exchanger Components

Headers, ProTek Shield, and Pressure Drop

Bypass and Governor Systems

Internal Bypass, Governor, and External Bypass

Electrical Wiring

Millivolt and Digital Wiring Preparation

Electrical Power and Transformer

Power Connections and Transformer Wiring

Details electrical power draw and transformer wiring for different voltages.

Wiring Diagrams

Millivolt System Wiring Schematic

Presents the wiring diagram for millivolt systems.

Wiring Diagrams (Continued)

Digital System Wiring Schematic

Presents the wiring diagram for digital systems.

Digital Controls and Diagnostics

Digital Interface, Operation, and Service Menu

Covers the digital interface, operation, and accessing the service menu.

Status and Fault Messages

Heater Status Messages (Fault Conditions)

Remote Control Installation

Remote Control Wiring and Operation

Safety Switches and Pump Operation

Water Pressure Switch Adjustment and Pump Speed

Safety Switches and Burner Assembly

Roll-Out Switch, High Limits, and Burner Tray Removal

Operating Instructions

Pre-Start-Up Checks and Start-Up Procedures

Details initial checks, visual inspection, and start-up process.

Millivolt System Operation

Millivolt System Lighting and Shutdown

Step-by-step guide for lighting and safely shutting down millivolt systems.

Digital System Operation

Digital System Lighting and Shutdown

Step-by-step guide for lighting and safely shutting down digital systems.

Maintenance and Cold Weather

Cold Weather Operation and Winterizing

Troubleshooting Common Issues

Problem Identification and Corrective Actions

A table detailing common problems, their causes, and solutions.

Troubleshooting Flow Charts

Millivolt System Troubleshooting Logic

Digital System Troubleshooting Logic

Digital Control Logic and Diagnostics

Control Logic and Diagnostic Readouts

Explains the control logic and how to interpret diagnostic readouts.