What to do if the REMEHA Calenta 25s flow temperature sensor is short circuited?
If the flow temperature sensor of your REMEHA Boiler is short circuited, it could be due to several reasons. First, check the wiring for any bad connections. Then, verify that the sensors are operating correctly and that the sensor has been correctly fitted. If these steps don't resolve the issue, consider replacing the sensor.
What to do if the REMEHA Boiler safety parameters are incorrect?
If the safety parameters for your REMEHA Boiler are incorrect, it might be due to a bad connection. In this case, check the wiring. Alternatively, the PSU could be defective, so consider replacing it.
What to do if the REMEHA Boiler flow temperature sensor has an open circuit?
If the flow temperature sensor of your REMEHA Boiler has an open circuit, first check the wiring for any bad connections. Also, check that the sensors are operating correctly and that the sensor has been correctly fitted. If the problem persists, replace the sensor.
How to fix REMEHA Calenta 25s storage unit PSU parameter not found?
If the storage unit PSU parameter is not found in your REMEHA Boiler, the problem could be a bad connection. Check the wiring to resolve this issue.
General| Output | 25 kW |
|---|---|
| Efficiency | Up to 98% |
| Weight | 37 kg |
| ErP Rating | A |
| Mounting | Wall-mounted |
| ErP Heating | A |
| ErP Water | A |
| Fuel Type | Natural Gas |
| Boiler Type | Combi |
| Flow Rate | 10.2 l/min |
| Fuel | Natural Gas |
Provides critical safety warnings for gas and flue gas leaks, and general precautions.
Explains the gas/air setting and combustion process within the boiler.
Presents detailed technical data for the boilers, including output, efficiency, and electrical characteristics.
Lists mandatory regulations, directives, and local provisions for boiler installation.
Provides guidance on selecting the optimal location for boiler installation, considering accessibility and dimensions.
Discusses selecting the boiler position, ensuring accessibility, and considering safety aspects.
Details ventilation requirements for the boiler, especially when installed in a closed casing.
Guides the user through the process of mounting the boiler using the provided template and bracket.
Outlines different methods for connecting the boiler to heating circuits, solar tanks, and independent hot water tanks.
Covers essential steps for connecting the boiler's hydraulic system, including flushing and pipe connections.
Details the steps for connecting the heating flow and return pipes to the boiler.
Explains connecting the domestic cold and hot water pipes, including safety units.
Provides step-by-step instructions for safely connecting the gas supply to the boiler.
Covers the types of flue gas connections and their classification according to CE standards.
Provides tables and guidelines for determining maximum lengths of air and flue gas pipes.
Details how to connect the combustion gas exhaust pipe, material requirements, and gradient.
Provides instructions for connecting the air intake pipe, material requirements, and gradient.
Details the process of making electrical connections to the boiler, including control unit and safety precautions.
Describes the boiler's control unit, its main characteristics, and power supply details.
Details connecting modulating controllers (OpenTherm) and on/off thermostats to the boiler.
Covers optional electrical connections, including 0-10V control PCB and SCU-S02 PCB options.
Details the procedure for filling the heating system, checking pressure, and automatic venting.
Details the procedure for filling the heating system, checking pressure, and automatic venting.
Describes the boiler's control panel, key functions, and display symbols for operation and status.
Outlines essential checks required before operating the boiler for the first time.
Details the preparatory procedure for boiler commissioning, including gas, hydraulic, and electrical checks.
Provides steps for checking the gas supply pressure, connections, and tightness of the gas circuit.
Outlines the final steps to commission the boiler, including setting controls and starting the unit.
Covers adjusting gas settings, including adapting to different gas types and setting air/gas ratios.
Explains how to convert the boiler for different gas types and the necessary adjustments.
Details the procedure for setting the air/gas ratio for full load operation using a flue gas analyser.
Details setting the air/gas ratio for part load operation, including flame checking.
Explains how to perform a basic setting of the gas/air ratio using the gas valve unit.
Describes final checks and adjustments required after the boiler has been commissioned.
Details how to change boiler settings, including user-level and installer-level parameters.
Details how qualified professionals can modify installer-level parameters, including access codes.
Provides detailed steps for checking the burner and cleaning the heat exchanger using a vacuum cleaner.
Details cleaning the plate exchanger and water filter cartridge due to limescale deposits, affected by water quality.
Provides step-by-step instructions for cleaning the plate exchanger with a descaling product.
Details cleaning or replacing the water filter cartridge, including rinsing and descaling.
Guides on replacing the 3-way valve, including unplugging the actuator and removing clips.
Details replacing the non-return valve located between the mixing elbow and the fan.
Lists and explains error codes, probable causes, and checking/solution steps for boiler faults.
To Next Page