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General| Type | Gas Heater |
|---|---|
| Heating Capacity | 19.2 kW |
| Nominal Heat Output | 19.2 kW |
| Energy Efficiency Class | A |
| Mounting | Wall-mounted |
| Safety Features | Flame failure device, Overheat protection |
| Model | WRD 11-2.B |
| Fuel Type | Natural Gas |
| Hot Water Flow Rate | 11 L/min |
Guidance on modifications and assembly procedures for the heater, emphasizing authorized installers.
User responsibilities and requirements for periodic maintenance and annual servicing of the heater.
Precautions against storing or using flammable materials near the heater.
Ensuring combustion air is free from harmful substances to prevent corrosion.
Client information on operation, handling, and prohibition of independent modifications.
Details on the heater's classification, model type, approval number, and technical identification codes.
List of components and accessories included with the gas heater package.
Overview of the heater's operating convenience, wall-mounting, digital display, and temperature sensor.
Information on available conversion kits for changing gas types.
Detailed physical dimensions of the heater models with a diagram and specification table.
Schematic representation of the heater's internal components and their interconnections.
Wiring diagram illustrating the electrical connections and components of the heater.
Explanation of the automatic electronic ignition system and its operation for simplifying heater use.
Comprehensive table detailing technical specifications, including power, gas data, consumption, and water data.
Key guidelines for gas installation, connection, and initial startup by authorized personnel.
Requirements for choosing a suitable, well-ventilated location, considering clearances and air quality.
Steps for physically mounting the heater, including removing selectors and using provided fixings.
Instructions for connecting cold and hot water pipes, advising on purging and non-return valves.
Adherence to local by-laws and regulations for gas connection and installation.
Steps for opening valves, inserting batteries, and checking monitoring devices for initial operation.
Explanation of the digital display elements, including temperature, error codes, and operating status.
Instructions for correctly inserting and replacing the 1.5 V R20 batteries, with usage precautions.
Essential checks before initial startup, including gas type verification and valve operation by a technician.
Procedure for turning the heater on/off and adjusting power output via the selector knob.
Guide to adjusting water temperature and flow rate by turning the selector anti-clockwise or clockwise.
Details on sealed elements, natural gas/liquefied gas adjustments, and conversion kits.
Detailed steps for connecting a manometer to measure and adjust maximum and minimum gas flow pressures.
Guidelines for functional checks, cleaning the heat exchanger, burner, and water filter, and replacing parts.
Steps for startup after maintenance, tightening connections, and purging the heater, especially for frost risk.
Details on the combustion gas probe's safety function, troubleshooting, and potential causes for heater shutdown.
Procedures for handling probe malfunctions, replacement, and performing operating checks on the combustion gas probe.
A chart listing common heater problems, their causes, and recommended solutions, including technician-required fixes.
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