Not sure what model your thermostat is? Just send these photos for a preliminary assessment.

• Ideal for customers whose old thermostats are missing nameplates, have illegible model numbers, or who need to purchase replacements urgently on-site.
• Please send photos of the front, nameplate, terminals, back, sensor connectors, cabinet door cutouts, and on-site wiring.
• After an initial assessment, the functional suffix, output signal, number of probes, and mounting dimensions still need to be confirmed.

After many years of use, it is common for thermostats to have their nameplates fall off, their model numbers become illegible, or their documentation go missing. Instead of trying to guess the model number, buyers can send photos of key details so that suppliers can help identify the product. Innotongda can, based onDry-type transformer thermostat, on-site photos of temperature and humidity controllers, etc., to help compile information for requesting quotes.

Quotes for Thermostats with Unknown Model Numbers and Suffixes

For the first set of photos, we recommend taking shots of the front panel and all visible text, including the brand, model series, buttons, display, and indicator lights. Even if there is no nameplate, the panel layout can provide initial clues.

For the second set of photos, we recommend taking shots of the side, back, and terminal block. The number of terminals, their labels, sensor interfaces, and communication ports often provide a better indication of the device’s functionality than the front view.

Procurement List for Thermostats of Unknown Models

If you suspect the problem is with the dry-type transformer's temperature controller, focus on photographing the sensor wires, fan output wires, alarm or trip wires, and the cutout in the cabinet door.BWDKProduct series such as the IB series may have different functions depending on the suffix, so you cannot judge them based on the casing alone.

If it is a temperature and humidity controller, please take photos of the heater, fan, sensor, and the installation location inside the cabinet. Innotongda offers relevant products such as the YN-TH and IX models for temperature and humidity control; however, specific details must still be confirmed based on on-site information.

Request for Quotation and Replacement Confirmation for an Unknown Model Thermostat Supplier

Photos can only be used for a preliminary assessment; a formal quote requires information on quantity, operating environment, functional requirements, and delivery time. If you are replacing old equipment, please specify whether you would like to retain the existing wiring and cutouts as much as possible.

If you need English-language documentation or an export quotation, please specify this when submitting your inquiry. We will provide the corresponding documentation and quotation based on the model confirmed by both parties.

Discussion on Price and Delivery Time for an Unspecified Thermostat Model

For customers with urgent needs, we recommend that you provide a description of the malfunction and your desired delivery date in a single message. We will first determine the type of thermostat and then list any additional information we need.

We do not recommend placing an order directly for used parts whose model numbers are unknown. Confirming the functionality and installation requirements first can reduce the risk of purchasing the wrong product.

Differences Between Spare Parts for Thermostats of Unknown Models and Project-Specific Components

When replacing spare parts, the focus is more on older models, wiring, and installation dimensions, whereas for new project supply, the focus is more on drawings, order quantities, technical documentation, and delivery schedules. Clearly stating the intended use when requesting a quote can help avoid mixing repair needs with project supply needs.

If you need to purchase both spare parts and new products at the same time, we recommend listing the quantities and delivery dates separately. We will review the information based on their respective uses and then respond with the corresponding product details and quotes.

Recommendations for Requesting a Quote for an Unknown Thermostat Model

Please send the photos, quantity, description of the malfunction, installation location, and desired delivery date all at once. We will first determine the type of thermostat and then let you know what additional information we need.

For used parts where the model number is unknown, we do not recommend placing an order directly. Confirming the functionality and installation requirements first can reduce the risk of purchasing the wrong product.

Confirmation of Information and Pricing

To facilitate faster communication regarding your purchase, we recommend clearly specifying the following in your email or form: product name, full model number, quantity, intended use, whether this is a replacement for an existing item, whether English documentation is required, and your expected delivery date. For customers requiring related items or making export purchases, please also include any requirements regarding packaging, shipping, and the destination.

Innotongda will provide documentation and quotations based on the models, configurations, and technical requirements confirmed by both parties. This will reduce the time customers spend verifying the information after receiving it and minimize the risk of purchasing incompatible products.

Related FAQs

1. Can you still identify a thermostat if it doesn't have a nameplate?

Based on this preliminary assessment, please provide photos of the front, terminals, back, and installation.

2. Do I need to take the device apart to take the photos?

If you can safely disassemble the unit, the terminals on the back are most helpful; if you can’t disassemble it, start by taking photos of the wiring inside the cabinet and the front panel.

3. How can you tell the difference between BWDK and IB thermostats?

This must be determined by considering the panel, nameplate, terminals, and function suffix.

4. Can you provide a quote for an unknown model?

We can provide a rough estimate, but an official quote requires confirmation of the model, features, and quantity.

5. Could you help me see if there's an older model I can replace it with?

Sure, please send us the photos and your requirements, and we’ll help you put together the request for quotation.

Request Information and a Quote:请提供产品型号、数量、使用场景、目的地、现场铭牌或安装照片。电话：13959168359，邮箱：2969488289@qq.com。