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General| Brand | Raypak |
|---|---|
| Model | 131 |
| Category | Swimming Pool Heater |
| Language | English |
Details on how to interpret the model number to understand heater specifications.
Recommended water chemistry levels for optimal heater performance and longevity.
Information on the replacement of gas valves in different model production dates.
Details on the evolution of control boards and their identification.
Describes the auto reset PCB and its role in safety lockout circuits.
Electrical schematic for heaters with a grey control board.
Explains the role of the pump in the heater's ignition and operation sequence.
Details the function and types of gas valves used in the heater.
Explains the function of the igniter in starting the burner.
Describes the probe that detects flame presence.
Explains the function of the pressure switch for detecting water flow.
Explains the function of the flow switch for detecting water flow.
Describes the probe that measures inlet water temperature.
Details the electronic PCB that manages heater operations.
How the controller indicates low water pressure or no flow.
Describes power backup and 'PO' display for loss of mains power.
Lists essential test equipment for diagnostic procedures.
Troubleshooting steps for control board and fuse issues.
Troubleshooting for remote controller issues.
Guides on how to perform specific diagnostic tests.
Step-by-step guide to adjust the gas valve burner pressure regulator.
Instructions for adjusting the flow switch for correct water flow detection.
Procedure for removing and replacing the front access panel.
Steps for safely removing the display panel and its components.
Instructions for removing and refitting the front and rear grilles.
Procedure for removing and replacing the upper in/out header panel.
Procedure for removing and replacing the lower in/out header panel.
Procedure for removing and replacing the draft intake diverter.
Steps to remove and replace the flue collector.
Procedure for removing and reinstalling the left hand side panel.
Procedure for removing and replacing the 45°C inlet high limit switch.
Procedure for removing and replacing the water temperature probe.
Procedure for removing and replacing the 55°C outlet high limit switch.
Procedure for removing and replacing the bypass valve components.
Procedure for removing and reinstalling the heat exchanger.
Procedure for replacing the burner manifold and individual injectors.
Procedure for handling and replacing refractory components.
Procedure for removing and refitting the rear refractory support.
Procedure for removing and refitting the front refractory support.
Procedure for replacing the reset button assembly.
Procedure for replacing the main control board.
Procedure for removing and replacing the terminal block.
Procedure for replacing the power cord set.
Procedure for replacing individual relays.
Procedure for replacing the relay base assembly.
Procedure for removing and reinstalling the main wiring loom.
Conditions and requirements for warranty claims on the heater.
Situations and damages that will void the heater's warranty.
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