Produk Selesaiview
The Lux Pro PSDH121B is a non-programmable thermostat designed specifically for heat pump systems. It supports 2 heat and 1 cool stages, providing reliable temperature control for your home. This model features a large, easy-to-read backlit display and simple temperature adjustment controls.

Depan view of the Lux Pro PSDH121B Non-Programmable Thermostat, showing the digital display and control buttons.
Ciri-ciri Utama
- Persediaan Pantas: Designed for easy installation and immediate use.
- Tahan Lama: Constructed with durable materials for extended reliability.
- Mod percubaan: Temporarily disables the compressor delay for testing purposes.
- Had Suhu: Allows setting high and low temperature boundaries.
- Vertical or Horizontal Orientation: Flexible mounting options to suit your space.
- Paparan Lampu Belakang Besar: Ensures clear visibility of temperature readings and settings.
- Mode and Fan Control: Intuitive controls for system mode (Heat, Cool, Off, Emer) and fan operation (Auto, On).
- Simple Temperature Adjustment: Easy-to-use UP and DOWN buttons for setting desired temperature.
- Kawalan Penentukuran: Membolehkan penalaan halus bacaan suhu.
- Temperature Swing Adjustability: Offers 9 levels of temperature swing for customized comfort.
- Compressor Delay: Features a selectable 2 or 5 minute compressor delay.
- Fahrenheit or Celsius Selection: User-selectable temperature display unit.

Diagram illustrating key features such as horizontal/vertical mount, dual power, large backlit display, and 5-year warranty.
Keserasian Sistem
The LUX PSDH121B thermostat is designed for use with single-stage heat pump systems that include auxiliary and/or emergency heat. These systems are typically known as 2-stage panas, 1-stage sistem pam haba sejuk.
Sistem yang serasi:
- Heat Pump without Auxiliary Heat (24V)
- Heat Pump with Auxiliary Heat (24V)
Tidak Serasi Dengan:
- 24V Cooling Only Systems
- Talian Voltage (120-240V) Systems
- Portable Space Heaters
- Plug-in Air Conditioners

Visual representation of compatible and incompatible HVAC systems for the PSDH121B thermostat.
Pemasangan dan Persediaan
Kandungan Pakej:

The package includes the Lux Pro PSDH121B Thermostat, 2 ST screws, 2 wall anchors, a wire label, and this instruction manual.
Rajah Pendawaian:
Refer to the following diagram for typical wiring of a heat pump system with auxiliary heat, also wired as emergency heat. Ensure to use either "B" or "O" terminal, but not both, depending on your heat pump's changeover valve type.

Detailed wiring diagram for connecting the PSDH121B thermostat to a typical heat pump system with auxiliary/emergency heat.
Pemasangan:
The thermostat can be mounted in either a vertical or horizontal orientation. Use the provided screws and wall anchors for secure installation.
Arahan Operasi
Melaraskan Suhu:
Gunakan UP (▲) dan TURUN (▼) arrow buttons located below the display to increase or decrease the desired temperature setting.
Memilih Mod Sistem:
The system mode switch allows you to select between different operating modes:
- KEREN: Activates the cooling function.
- MATI: Mematikan kedua-dua pemanasan dan penyejukan.
- HABA: Mengaktifkan fungsi pemanasan.
- EMER (Haba Kecemasan): Activates the emergency heating system, typically used when the primary heat pump is not functioning.
Selecting Fan Mode:
The fan mode switch controls the fan operation:
- AUTO: Kipas hanya berfungsi apabila sistem pemanasan atau penyejukan beroperasi secara aktif.
- ON: Kipas berjalan secara berterusan, tanpa mengira panggilan pemanasan atau penyejukan.

Illustration of the temperature adjustment buttons and mode/fan switches on the thermostat.
Penyelenggaraan
Penggantian Bateri:
The thermostat requires 2 AA batteries for operation. When the battery indicator appears on the display, replace the batteries promptly to ensure continuous operation. To replace, gently pull the thermostat body away from the wall plate to access the battery compartment.
Pembersihan:
Lap bahagian luar termostat dengan kain lembutamp kain. Jangan gunakan pembersih atau pelarut yang melelas.
Menyelesaikan masalah
| Masalah | Kemungkinan Punca | Penyelesaian |
|---|---|---|
| Tiada paparan atau skrin kosong | Bateri mati atau tiada kuasa. | Gantikan bateri. Periksa pemutus litar untuk sistem HVAC. |
| Sistem tidak bertindak balas terhadap tetapan termostat | Incorrect wiring, system mode, or fan mode. | Verify wiring connections. Ensure correct system mode (Heat/Cool/Emer) and fan mode (Auto/On) are selected. |
| Temperature reading seems inaccurate | Thermostat location or calibration issue. | Ensure thermostat is not exposed to direct sunlight or drafts. Use calibration control if available (refer to advanced settings). |
| Heat pump short cycles or runs too frequently | Compressor delay setting or temperature swing. | Adjust compressor delay (2 or 5 minutes) or temperature swing settings to allow for longer cycles. |
Spesifikasi
| Jenama | LUX |
| Nama Model | PSDH121B-010-FBA |
| Dimensi Produk | 1"D x 3.5"W x 4.7"H |
| Jenis Pengawal | Butang Tekan |
| warna | putih |
| Kegunaan Khusus Untuk Produk | Pam Haba |
| Jenis Kawalan Suhu | digital |
| Teknologi Ketersambungan | berwayar |
| Komponen yang Disertakan | PSDH121B-010 Mechanical Non-Programmable Thermostat |
| Sumber Kuasa | AC DC |
| Berat Barang | 0.09 paun (1.44 auns) |
| Voltage | 24 Volt |
| bahan | plastik |
| Jenis Paparan | digital |
| Saiz Skrin | 2 Inci |
| Kaedah Kawalan | Sentuh (Butang) |
| Jenis Pemasangan | Lekap di dinding |
| Lampu latar | ya |
| Bateri Diperlukan | 2 bateri AA |
| UPC | 021079031214 |
| Pengeluar | EME Delaware |
| Tarikh Mula-mula Tersedia | 5 Mei 2005 |
Waranti dan Sokongan
Maklumat Waranti:
The Lux Pro PSDH121B Thermostat comes with a 5-year limited warranty. For detailed warranty terms and conditions, please refer to the documentation included with your product or contact LUX customer support.
Sokongan Pelanggan:
For technical assistance, troubleshooting, or warranty claims, please contact LUX customer support. Visit the official LUX webtapak untuk maklumat hubungan dan sumber tambahan.
Note: Always ensure to consult a qualified HVAC professional for complex installations or repairs.





