1. Einleitung
This manual provides comprehensive instructions for the installation, operation, and maintenance of your LUX Pro PSD111B Non-Programmable Thermostat. This device is designed for residential use to control 1 Heat, 1 Cool HVAC systems, offering reliable and straightforward temperature management.

Figure 1: LUX Pro PSD111B Thermostat Front View
2. Hauptmerkmale
- Vielseitige Installation: Can be installed in either horizontal or vertical orientation.
- Klare Anzeige: Features an easy-view backlit display for enhanced readability.
- Batteriebetrieben: Operates on 2 included AA alkaline batteries, ensuring reliable power.
- Temperatureinheiten: Choose between Fahrenheit or Celsius temperature display options.
- Präzise Steuerung: Adjustable temperature swing settings with 9-step control for accurate temperature management.
- Safety Limits: Offers adjustable high and low temperature limits for customized comfort control.

Abbildung 2: Produktmerkmale im Überblickview
3. Systemkompatibilität
The LUX Pro PSD111B thermostat is designed for use with most 24-volt gas, oil, or electric heating and air conditioning systems, gas millivolt heating systems, and single-stage heat pumps. It is not compatible with 120-volt heating systems or two-stage Wärmepumpen.
Compatible Systems (24V)
- Gas/Oil/Electric Furnace - Heating only
- Gas-/Öl-/Elektroofen - Einzelgerättage
- Wärmepumpe ohne Zusatzheizung
- 2-wire Hydronic (Hot Water)
- 750 Millivolt
- Gaskamine (24V)
- Nur Kühlung
- Singlestage Kühlung
Nicht kompatibel mit
- Wärmepumpen-Multistage
- Strahlungsdeckenheizung
- Elektrische Sockelleisten
- Wärmepumpe mit Zusatzheizung
- Tragbare Heizgeräte
- 3-wire Hydronic (Hot Water)
- Gas-/Öl-/Elektroheizung - Multistage
- Cool Multistage
- Steckdosen-Klimaanlagen

Figure 3: System Compatibility Chart
4. Lieferumfang
Your LUX Pro PSD111B Non-Programmable Thermostat package includes the following items:
- PSD111B Thermostat Unit
- 2 ST screws
- 2 Wandanker
- Kabeletiketten
- Bedienungsanleitung
- 2 AA-Alkalibatterien

Abbildung 4: Enthaltene Komponenten
5. Einrichtung und Installation
Before beginning installation, ensure the power to your HVAC system is turned off at the circuit breaker to prevent electrical shock or damage to the system.
5.1 Montage des Thermostats
- Carefully remove your old thermostat. Take a photo of the existing wiring connections for reference.
- Mount the new thermostat base plate to the wall using the provided screws and anchors. The thermostat can be installed in either horizontal or vertical orientation.
- Feed wires through the back of the thermostat base and securely mount to the wall with supplied screws and anchors.

Abbildung 5: Montageoptionen
5.2 Verdrahtungsanweisungen
Refer to the wiring diagrams below for typical hookups. Use the provided wire labels to correctly identify and connect wires from your HVAC system to the corresponding terminals on the thermostat base.

Figure 6: Typical Wiring Diagrams

Figure 7: Detailed Wiring Hookups
5.3 Gas/Electric System Selection
Locate the small switch inside the thermostat unit. Slide the switch to the 'GAS' position for gas heating systems or 'ELEC' for electric heating systems (including heat pumps).
5.4 Einlegen der Batterie
Insert the two AA alkaline batteries into the battery compartment located at the bottom of the thermostat. Ensure correct polarity. Remove any protective tabs if present.
5.5 Endmontage
Once wiring and settings are complete, carefully snap the thermostat front cover onto the mounted base plate. Restore power to your HVAC system at the circuit breaker.
Video 1: Installation and Wiring Overview for LuxPro Thermostat
6. Bedienungsanleitung
The PSD111B is a non-programmable thermostat, offering simple manual control over your home's temperature.
6.1 Temperatur einstellen
Use the UP (▲) and DOWN (▼) arrow buttons on the front of the thermostat to set your desired temperature. The display will show the current room temperature and your set temperature.

Figure 8: Simple and Intuitive Control Panel
6.2 Systemmodusauswahl
Use the SYSTEM switch located on the side of the thermostat to select the operating mode:
- HITZE: Activates the heating system when the room temperature falls below your set temperature.
- AUS: Schaltet sowohl die Heizungs- als auch die Kühlanlage ab.
- KÜHL: Activates the cooling system when the room temperature rises above your set temperature.
6.3 Lüftermodusauswahl
Use the FAN switch located on the side of the thermostat to select the fan operation mode:
- WAGEN: Der Ventilator läuft nur, wenn die Heizungs- oder Kühlanlage aktiv ist.
- AUF: Der Ventilator läuft ununterbrochen, unabhängig davon, ob die Heizung oder die Klimaanlage in Betrieb ist.
7. Wartung
7.1 Batteriewechsel
When the battery indicator appears on the display, replace the two AA alkaline batteries promptly. Open the battery compartment at the bottom of the thermostat, remove old batteries, and insert new ones, ensuring correct polarity. The thermostat retains settings during battery changes.
7.2 Reinigung
Reinigen Sie die Außenseite des Thermostats mit einem weichen, fusselfreien Tuch.amp Tuch. Keine Scheuer- oder Lösungsmittel verwenden.
8. Fehlerbehebung
If your thermostat is not functioning as expected, consider the following:
- Kein Bildschirm: Prüfen Sie, ob die Batterien korrekt eingesetzt sind und ausreichend geladen sind. Tauschen Sie sie gegebenenfalls aus.
- System reagiert nicht: Ensure the SYSTEM switch is set to HEAT or COOL, not OFF. Verify the fan switch is in the desired position (AUTO or ON). Check your circuit breaker for the HVAC system.
- Falsche Temperaturanzeige: Allow the thermostat to acclimate to the room temperature for at least 15 minutes after installation or significant temperature changes.
- Heating/Cooling Cycles Too Frequently/Infrequently: Adjust the temperature swing settings (9-step control) to fine-tune the cycle frequency.
9. Spezifikationen
| Spezifikation | Detail |
|---|---|
| Marke | LUX |
| Modellname | PSD111B-010 |
| Technische Daten | 1"T x 3.5"B x 4.7"H |
| Controllertyp | Druckknopf |
| Besonderheit | Niedrige Lautstärketage |
| Farbe | Weiß |
| Spezifische Verwendungen für das Produkt | Air Conditioner, Heat Pump |
| Temperaturregelungstyp | Handbuch |
| Im Lieferumfang enthaltene Komponenten | PSD111B-010 Mechanical Non-Programmable Thermostat |
| Stromquelle | AC/DC (2 AA batteries required) |
| Artikelgewicht | 6.4 Unzen |
| Bandtage | 24 Volt |
| Material | Plastik |
| Anzeigetyp | LCD |
| Montagetyp | Wandhalterung |
10. Garantie und Support
The LUX Pro PSD111B Non-Programmable Thermostat comes with a 5-year limited warranty. For support or warranty claims, please refer to the contact information provided in your owner's manual or visit the official LUX webWebsite.





