TNC-80 S - Water heater COINTRA - Free user manual and instructions
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| Product Type | Water Heater (Electric Storage) |
| Brand | Cointra |
| Model | TNC-80 S |
| Capacity | 80 Liters |
| Power Supply | 230 V ~ 50 Hz |
| Heating Power | 2000 W |
| Dimensions (Height x Diameter) | Approx. 850 mm x 450 mm |
| Weight (Empty) | Approx. 25 kg |
| Maximum Temperature | 75 °C (adjustable via thermostat) |
| Safety Valve | Pressure relief valve (8 bar) |
| Thermal Insulation | Polyurethane foam, 50 mm thickness |
| Material | Enameled steel tank with magnesium anode |
| Energy Efficiency Class | C (approximate) |
| Standby Heat Loss | < 1.5 kWh/24h |
| Protection Class | IP24 (splash-proof) |
| Anode Maintenance | Check magnesium anode annually; replace if < 5 mm |
| Descaling | Recommended every 2–3 years depending on water hardness |
| Safety Features | Thermal cut-off, overheat protection, anti-freeze function (if temperature drops below 5 °C) |
| Spare Parts Available | Heating element, thermostat, magnesium anode, safety valve |
| Installation | Wall-mounted, horizontal or vertical (check manual) |
Frequently Asked Questions - TNC-80 S COINTRA
How do I adjust the temperature on my Cointra TNC-80 S?
The temperature is adjusted via the thermostat knob on the lower front panel. Turn it clockwise to increase temperature (max 75°C) and counterclockwise to decrease. Allow a few hours for the water to reach the set temperature.
Why is my water heater not heating water?
Check the power supply: ensure the plug is connected and circuit breaker is on. If still not heating, the heating element or thermostat may be faulty. Test the element with a multimeter. If defective, replace it.
How often should I replace the magnesium anode?
Inspect the magnesium anode annually. Replace it if its diameter is less than 5 mm or if it is heavily corroded. Regular replacement extends the tank's life.
What does the pressure relief valve do and how do I test it?
The pressure relief valve releases excess pressure to prevent tank rupture. Test it quarterly by lifting the lever slightly; water should discharge. If no water comes out, replace the valve.
Can I install the TNC-80 S horizontally?
Yes, the TNC-80 S can be installed both vertically and horizontally. Ensure the wall bracket is securely fixed to a load-bearing wall. Refer to the installation diagram in the manual for proper orientation.
How do I drain the water heater?
Turn off power and water supply. Open a hot water tap to relieve pressure. Connect a hose to the drain valve at the bottom. Open the valve and let water drain. For complete drainage, also open the safety valve.
What is the recommended temperature setting for energy efficiency?
Set the thermostat to 60°C (140°F). This temperature is hot enough for household use and minimizes scale buildup and heat loss. Higher temperatures increase energy consumption and risk of scalding.
Why is water leaking from the bottom of the heater?
Check the pressure relief valve first—if it's dripping, it may be faulty or the water pressure is too high. If the tank itself is leaking, the inner liner may be compromised. In that case, replace the heater.
How can I reduce scale buildup in my water heater?
Install a water softener if your water is hard. Set the thermostat no higher than 60°C. Periodically descale the interior by using a descaling solution or by replacing the anode regularly. Flushing the tank annually also helps.
What maintenance does the TNC-80 S require?
Annual maintenance includes: checking the magnesium anode, testing the pressure relief valve, draining and flushing the tank to remove sediment, and inspecting electrical connections. Every 2–3 years, descale the heating element.
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USER MANUAL TNC-80 S COINTRA
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Product information
Brand : COINTRA
Model : TNC-80 S
Category : Water heater