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General| Type | Tankless |
|---|---|
| Fuel Type | Natural Gas |
| Maximum Flow Rate | 11 GPM |
| Energy Factor | 0.82 |
| Warranty | 12 years |
| Inlet Water Temperature Range | 40-90°F |
| Voltage | 120 V |
| Ignition Type | Electronic |
| Venting | Direct Vent |
| Gas Connection | 3/4 inch |
| Water Connection | 3/4 inch |
| Temperature Adjustment Range | 98°F to 140°F |
Essential safety precautions to prevent fire, explosion, injury, or death.
In-depth explanation of each component, its function, and potential failures.
Specific troubleshooting steps for flame loss, ignition failure, and temperature sensor errors.
Troubleshooting steps for errors involving limit switches, pressure switches, and various thermistors.
Resolving errors for fan speed, burner overheating, leaks, and pump operation.
Resolving errors for mixing valves, AGM, communication failures, and exhaust temperature limits.
Procedure for addressing flame loss errors, including checking connections and sensors.
Steps to resolve ignition failure errors, checking the flame sensor and igniter.
Troubleshooting for overheating errors related to operating and DHW temperature sensors.
Procedure for addressing high limit switch errors, checking switch resistance and settings.
Troubleshooting for APS errors, checking connections, hoses, and condensate passages.
Procedure for resolving DHW inlet thermistor open or short circuit errors.
Procedure for resolving DHW outlet thermistor open or short circuit errors.
Procedure for resolving operating thermistor open or short circuit errors.
Procedure for resolving exhaust thermistor open or short circuit errors.
Troubleshooting for false flame detection errors, checking front cover and flame sensor readings.
Procedure for addressing gas leakage errors, including leak testing and checking joints.
Troubleshooting for excess fan speed errors, checking APS, condensate, and pipes.
Procedure for resolving burner limit switch errors, checking connections and resistance.
Procedure for addressing water leakage errors, checking the detector and finding the leak source.
Troubleshooting for DHW overheating errors, checking sensors and DIP switch settings.
Procedure for addressing fan RPM sensor errors, checking wiring and connections.
Troubleshooting for flow control valve errors, checking wiring and connections.
Procedure for resolving water mixing valve errors, checking connections and leaks.
Troubleshooting for AGM motor positioning errors, checking wiring and connections.
Procedure for addressing flame detected before ignition errors, checking front cover and sensor readings.
Troubleshooting for DIP switch errors, ensuring correct settings based on unit capacity.
Procedure for resolving communication errors between the control panel and circuit board.
Troubleshooting for cascade communication failures, checking cables and installer mode settings.
Procedure for addressing exhaust temperature errors, checking thermistor and vent pipe.
