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General| Fuel Type | Natural Gas or Propane |
|---|---|
| Ignition Type | Electronic |
| Water Connections | 2" NPT |
| Type | Pool Heater |
| Heat Exchanger Material | Cupro Nickel |
| Efficiency | 82% |
Defines safety terms like DANGER, WARNING, CAUTION, and NOTE used throughout the manual.
Discusses the proper use of chemical feeders and chlorinators to prevent damage to the heater.
Outlines the essential steps for safely starting up the pool/spa heater.
Details pre-operation checks, including burner and water flow, before attempting to start the heater.
Describes how to visually inspect the pilot and burner flames for correct operation.
Provides important safety cautions regarding water temperature and user health risks.
Provides a schedule and steps for routine maintenance of the heater.
Offers guidance on operating the heater in cold climates and preventing freeze-ups.
Details how to receive and inspect the heater and its components upon delivery.
Lists the design certifications and standards the heater meets.
Specifies the operating temperature range for the heater's components.
Provides input ratings and elevation derating information for atmospheric models.
Outlines the required local and national codes for heater installation.
Specifies minimum clearances from combustible surfaces for safe heater installation.
Covers specific requirements for installing the heater outdoors.
Provides instructions for installing the optional pagoda top.
Details the requirements for installing the heater indoors.
Explains the use and installation of optional outdoor and indoor stack kits.
Details the requirements for providing adequate air for combustion and ventilation.
Specific installation guidelines for Florida and Texas based on wind speed and exposure.
Classifies heaters based on vent pressure and condensate production.
Outlines requirements for connecting the gas supply to the heater.
Specifies minimum and maximum supply pressure requirements for natural and propane gas.
Explains the function and adjustment of the gas pressure regulator.
Shows where to find gas pressure adjustment controls on specific models.
Provides guidelines for selecting the correct pipe size for gas connections based on input and length.
Details how to install the water connections to the heater.
Describes the function of the Unitherm Governor in maintaining internal temperature.
Explains the role of the internal bypass valve in managing water flow.
Details when and how to use an external auxiliary bypass valve.
Provides instructions for adjusting the auxiliary bypass valve.
Covers the installation requirements for a pressure relief valve.
General plumbing guidelines for connecting the heater.
Information on the power consumption of the heater.
Details on wiring the transformer for different voltage inputs.
Instructions for safely removing the control panel for access.
How to adjust temperature settings and select modes using the control panel.
Explains how the heater operates and displays status messages.
Accessing diagnostic information and troubleshooting codes.
Instructions for using the program button to set factory defaults or other parameters.
Overview of status messages and diagnostic readouts displayed by the heater.
Details on setting factory defaults, clearing faults, and changing units or setpoints.
How to enable and use the control lockout feature to prevent unauthorized changes.
Guidelines for installing and operating external remote control systems.
How the heater behaves when controlled by a remote system.
Steps to enable or disable the remote control function.
Detailed instructions for wiring remote control systems.
Specific wiring for a two-wire remote control setup.
Wiring instructions for a three-wire remote control system.
How to connect and use a time clock or fireman's switch.
Importance and installation of the water flow switch for safe operation.
Information on the flame roll-out safety switch and its function.
Details the two automatic high limit switches and their settings.
Explains the function of the pilot safety device.
Step-by-step guide to removing the burner tray for maintenance.
Instructions for removing and cleaning the pilot assembly.
Procedures for safely removing the heat exchanger.
How to clean the heat exchanger tubes based on water conditions.
Steps to remove soot buildup from the heat exchanger fins.
Steps to remove the combustion chamber after heat exchanger removal.
Guide for replacing the immersion well in the header.
Instructions for replacing the Unitherm Governor unit.
Lists common mechanical problems, their causes, and corrective actions.
A visual flow chart illustrating the heater's control logic and fault diagnosis.
