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General| Model | MASTERTEMP 300 HD |
|---|---|
| Category | Swimming Pool Heater |
| Type | Gas |
| Heating Capacity | 300, 000 BTU |
| Thermostat | Digital |
| Efficiency | 82% |
| Phase | Single |
| Min Water Flow | 20 GPM |
| BTU Output | 300, 000 |
| Voltage | 120V |
| Warranty | 1 Year |
| Heat Exchanger Material | Cupro-nickel |
Provides an overview of the MasterTemp pool and spa heater's general specifications.
Details on how to operate the heater's control panel, including buttons and indicator lights.
Explains the safety devices like Air Flow Switch (AFS), Water Pressure Switch, and Height Limit Devices.
Describes the heater's components and outlines its operational sequence.
Covers essential plumbing, gas connections, pipe sizing, electrical hookups, and wiring.
Details requirements for indoor/outdoor venting, clearances, and vent termination.
Lists the necessary British Standard Codes of Practice and local regulations for installation.
Provides critical warnings about carbon monoxide dangers and necessary precautions.
Offers safety advice regarding water temperatures in spas and hot tubs.
Describes the function and adjustment of Air Flow Switch (AFS) and Water Pressure Switch (PS).
Explains the function of High Limit devices that shut off the heater based on water temperature.
Specifies the required inlet gas pressure for natural gas and propane, and testing procedures.
Details air supply requirements for indoor installations and lists sources of corrosive vapors.
Instructions for connecting external controls like fireman's switches and remote contacts to the heater.
Provides initial steps and checks before proceeding to specific troubleshooting charts for common issues.
Guides users through charts to diagnose why the heater fails to fire, categorized by LED indicators.
Troubleshooting steps for specific diagnostic LEDs, guiding users to identify and resolve faults.
Identifies symptoms like loud whine or fluttery flame and their causes/remedies.
Addresses issues like boiling sounds or sweating, linking them to water flow and thermal governor problems.
Routine care, procedures for de-liming the heater, and instructions for the pressure relief valve.
Provides instructions for winterizing the heater, including draining and protecting against freezing.
Offers advice on reducing heating costs, such as using covers and adjusting thermostats.
Explains the importance of proper water chemistry (pH, chlorine, bromine) for heater longevity.
Diagrams and lists of replacement parts for the burner, water, and electrical systems.
