Tlc-solar 400 - Uncategorized Vemer - Free user manual and instructions
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| Product Type | Solar thermal differential controller |
| Brand | Vemer |
| Model | Tlc-solar 400 |
| Application | Regulation of solar thermal systems for domestic hot water and heating support |
| Power Supply | 230 V AC ±10% |
| Frequency | 50/60 Hz |
| Sensor Inputs | 2× PT1000 temperature sensor inputs |
| Relay Outputs | 2× relay outputs for pump and auxiliary devices |
| Display | Backlit LCD display for temperature and status indication |
| Control Mode | Differential control with adjustable hysteresis |
| Temperature Range | 0 °C to +99 °C |
| Protection Class | IP40 |
| Operating Environment | 0 °C to +50 °C ambient temperature |
| Dimensions | 105 × 85 × 60 mm |
| Weight | 250 g |
| Mounting | Wall mount or DIN rail mount |
| Features | Adjustable setpoints, manual/automatic mode, frost protection, overheating protection |
| Maintenance | Clean with dry cloth; periodically check sensor and relay connections |
| Safety | Over-temperature cutoff, built-in fuse, high voltage isolation |
| Repairability | Replaceable relays, sensors, and fuses; service friendly design |
Frequently Asked Questions - Tlc-solar 400 Vemer
How do I reset the Vemer Tlc-solar 400 controller?
Press and hold the reset button for 3 seconds to restore the default settings. If the display remains frozen, disconnect the power supply for 10 seconds and reconnect.
What do the symbols on the display mean?
The display shows sensor temperatures (collector and tank), pump status, and error codes. A sun icon indicates collector activity, while a drop icon represents tank temperature.
How do I connect the temperature sensors?
Connect the PT1000 sensors to the terminals labeled S1 and S2. Ensure correct polarity and secure wiring to avoid false readings.
Can the Tlc-solar 400 control a circulation pump?
Yes, the first relay output is designed to switch a circulation pump on and off automatically based on differential temperature.
Where should I place the temperature sensors?
Place one sensor on the solar collector outlet and the other in the storage tank at mid-height. Avoid direct sunlight on sensor wires and use thermal paste for accurate readings.
How to adjust the temperature difference for pump activation?
Enter the settings menu (press the MENU key) and navigate to the 'dT' parameter. Set the desired difference (e.g., 6-10°C). The pump starts when collector temperature exceeds tank temperature by dT and stops when it falls below the hysteresis.
Does the manual mode serve any purpose?
Manual mode forces the pump output on/off regardless of temperature, useful during system commissioning or emergency operation. It overrides automatic differential logic until switched back to AUTO.
The pump does not start even when the collector is hot. What could be wrong?
Check sensor measurements on the display, verify the dT setting is within range, and inspect the relay wiring. Also ensure power supply is present and the fuse is intact.
Is this controller suitable for domestic hot water systems?
Yes, the Tlc-solar 400 is specifically designed for solar domestic hot water systems, typically using flat-plate or evacuated tube collectors and a storage tank.
How should I clean and maintain the controller?
Use a slightly damp, lint-free cloth to wipe the casing; avoid harsh chemicals. Periodically tighten terminal connections and check sensor wires for damage.
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USER MANUAL Tlc-solar 400 Vemer
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Product information
Brand : Vemer
Model : Tlc-solar 400
Category : Uncategorized