75664590 - Temperature Controller HAGER - Free user manual and instructions
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| Product Type | Temperature Controller |
| Brand | Hager |
| Model | 75664590 |
| Dimensions | 86 x 86 x 30 mm (standard flush-mount) |
| Weight | Approx. 150 g |
| Power Supply | 230 V AC, 50 Hz |
| Rated Current | 16 A (resistive load) |
| Display Type | Backlit LCD |
| Control Type | Digital thermostat with manual override |
| Temperature Range | 5°C to 40°C |
| Accuracy | ±0.5°C |
| Main Functions | Room temperature regulation, frost protection, automatic or manual mode, setpoint adjustment |
| Programming | 7-day programmable with up to 4 time periods per day |
| Output Type | Relay (potential-free contact) |
| Sensor | Internal NTC thermistor |
| Protection Class | IP20 (indoor use) |
| Safety Features | Overheat protection, manual reset |
| Cleaning and Maintenance | Wipe with a dry or slightly damp cloth. Do not use solvents or abrasives. |
| Spare Parts and Repairability | Available from Hager customer service. Device is not user-serviceable. |
| Certifications | CE, RoHS |
| Compatibility | For use with electric heating systems, gas boilers, heat pumps (requires appropriate wiring) |
Frequently Asked Questions - 75664590 HAGER
How do I install the Hager 75664590 temperature controller?
Installation should be carried out by a qualified electrician. Ensure the power is off. Mount the controller in a flush box (standard 86x86mm), connect wires as per the wiring diagram in the manual, and secure the faceplate.
What is the correct wiring for this thermostat?
The Hager 75664590 has terminals for live (L), neutral (N), and load (NO/COM). Consult the wiring diagram in the manual for your specific heating system. Typically, L and N are for power, and COM/NO connect to the heating device.
How do I program the weekly schedule?
Press the programming button to enter schedule mode. Use the arrow keys to set the day, time, and desired temperature for each period. The controller supports up to 4 periods per day with different temperature setpoints.
What does 'Frost Protection' mode do?
Frost protection mode maintains a minimum temperature (typically 5°C) to prevent pipes from freezing. It activates automatically when the temperature drops near freezing or can be set manually.
How do I reset the controller to factory settings?
To perform a factory reset, press and hold the Menu and OK buttons simultaneously for 5 seconds. The display will show 'rSt' confirming the reset. All custom settings will be lost.
Why is the display showing 'E1' error?
Error code 'E1' indicates a sensor fault. This could be due to a short circuit or open circuit in the internal temperature sensor. Contact Hager support for replacement or repair.
Can I use this thermostat with a 12V heating system?
No, the Hager 75664590 is designed for 230V AC systems. Using it with low voltage systems may damage the device or cause malfunction.
How do I adjust the temperature offset?
Go to the settings menu by pressing the Menu button. Navigate to 'Offset' or 'Calibration' and adjust the value using the arrow keys. This allows you to fine-tune the displayed temperature to match an accurate reference.
What is the maximum load for this controller?
The maximum resistive load is 16 A at 230 V AC. For inductive loads (e.g., motors), derate to 10 A. Exceeding these limits may damage the relay or cause fire.
How do I clean the temperature controller?
Use a soft, dry cloth to wipe the surface. If necessary, slightly dampen the cloth with water. Do not use any cleaning agents, solvents, or abrasive materials, as they may damage the screen or housing.
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