As heat pump systems continue to transition toward lower-GWP refrigerants, R32 そして R454B have become two of the most important refrigerants in new product development. For manufacturers, this transition is not only about refrigerant replacement. It also changes how the equipment should detect leaks, respond to abnormal concentration, and integrate safety logic into the control system.
At Winsen, we focus on refrigerant detection solutions that help heat pump manufacturers build safer, more compact, and more integration-friendly products. Our refrigerant gas sensors and modules are designed for refrigerant leak detection in applications such as leakage alarm and automatic switch-off, with product options covering R32、 R454B, and other refrigerants through nです、 熱伝導、 そして 半導体 solutions. Our refrigerant sensor solutions are also positioned for applications aligned with UL 60335-1、 UL 60335-2-40、 そして ce related requirements.
Why heat pump manufacturers need dedicated R32 and R454B sensor modules
For heat pump equipment, refrigerant detection is not simply a standalone gas-sensing function. In real OEM projects, the sensor module must work as part of the complete appliance strategy, including leak monitoring, controller communication, protective response, installation position, and long-term operating stability.
This is especially important in R32 and R454B platforms, where manufacturers need a solution that can combine 速い応答、 stable output、 compact structure、 そして easy electrical integration. Winsen’s refrigerant sensor portfolio is built around exactly these needs, with both module-level and sensor-level solutions for different heat pump architectures.
A practical solution strategy for R32 and R454B heat pump projects
In our engineering experience, the right solution should be selected based on the product architecture, not only on the refrigerant name. Some heat pump manufacturers need a compact module for limited internal space. Others need digital communication for the main controller. Some projects prioritize 0–50% LFL monitoring, while others need a wider 0–100% LFL detection range.
That is why Winsen offers multiple module paths for R32 and R454B projects rather than forcing all customers into one platform. On our refrigerant sensor page, the core product families for these applications include the ZRT512E series、 ZR210、 ZRT512Cシリーズ、 そして ZRT510シリーズ。
Solution 1: For higher-range A2L detection and controller communication
For projects that need broader LFL-range monitoring together with digital communication, the ZRT512E-R454B & R32 Series refrigerant detection module is one of the most suitable options. This module targets R454BとR32, supports a 0–100％LFL detection range, and the Winsen comparison section describes it as an nです solution with high sensitivity, high resolution, fast response time, and RS485 protocol. The listed module size is 54.0 × 49.1 × 17.9 mm。
For heat pump manufacturers, this type of module is especially suitable when the refrigerant detector needs to communicate directly with a controller or upper-level board through a structured interface rather than only provide a simple alarm signal.
Solution 2: For compact heat pump structures and low-power designs
For projects where installation space is tight and low-power operation matters, the ZR210 refrigerant detection module is a strong solution. It targets R32とR454B and is described on our product page as a 熱伝導 module with fast response speed, small size, low power consumption, long service life, and good anti-condensation effect. Its listed size is only 37×20×7mm。
This makes the ZR210 especially valuable in compact indoor units, integrated heat pump assemblies, and designs where condensation resistance and board space are both critical concerns.
Solution 3: For mainstream OEM A2L detection platforms
For manufacturers looking for NDIR-based refrigerant modules in the common A2L detection range, the ZRT512C family provides a very practical solution path. Winsen currently offers ZRT512C-R454B-4-4-4、 ZRT512C-B、 ZRT512C-A、 そして ZRT512J in this range. These modules cover R454B または R32/R454B/R290, and are listed with 0-50% LFL detection ranges. In our comparison section, the ZRT512C family is described as offering high sensitivity, high resolution, and fast response time based on nです technology.
For many heat pump OEM programs, this type of platform is a good balance between performance, safety logic support, and integration flexibility.
Solution 4: For dedicated refrigerant-specific module planning
Some manufacturers prefer a more dedicated refrigerant-specific design path. For those projects, Winsen provides both ZRT510 冷媒 R32 センサーモジュール そして ZRT510 冷媒 R454B センサーモジュール. The R32 version targets R32, and the R454B version targets R454B. On our product page, both are described as nです modules with high sensitivity, high resolution, and fast response. The listed size is 75.4 × 57 × 21.5 mm without connecting cable. The page also notes customization flexibility between R32, R454B, and R290 for this family.
This kind of module is often preferred when the design team wants a more direct refrigerant-specific validation path for a given platform.
Solution 5: For customized assemblies, embedded integration, or ppm-level alarm logic
Some OEM projects do not start with a complete enclosure module. Instead, they need a smaller sensor core or a lower-range solution that can be built into a custom board or product structure. In these cases, Winsen also provides supporting options such as:
The MH-Z1542B-R32 冷媒センサーモジュール, listed with nです principle, 0–5.00% Vol detection range, and UART出力, with a size of 32.9×22.3×11.9mm。
The MH-441D NDIR赤外線冷媒センサー, listed for R32、R454B、R410A、および R134A、 と 0–5% Vol range and UART / analog voltage signal 出力。
The MP511D 冷媒ガスセンサー、a 半導体 solution with 200～10000ppm range and characteristics including high selectivity, fast response, and good anti-interference。
The MP510C冷媒ガスセンサー, also 半導体, for refrigerants including R32、R134a、R410a、および R290、 と 100～10000ppm range.
The ZP201冷媒ガス検出モジュール, positioned for R32 leak detection in air-conditioning and refrigeration systems, with an alarm value of 5000 ppm。
These options are useful when the product design requires a custom enclosure, a compact board-level integration path, or ppm-based alarm implementation instead of a fully packaged LFL-oriented module.
How we recommend selecting the right Winsen solution
For heat pump manufacturers, module selection should start from the equipment architecture:
If your project needs controller communication and wider LFL-range monitoring、 ZRT512E-R454B & R32 Series is a strong direction.
If your project is space-constrained and requires 小型、低消費電力、結露防止性能を実現、 ZR210 is one of the best fits in the current portfolio.
ご希望の場合は、 mainstream NDIR OEM module family for 0-50% LFL monitoring, the ZRT512C family is the practical starting point.
If your product strategy is refrigerant-specific、 ZRT510-R32 そして ZRT510-R454B modules offer a clearer dedicated path.
If you are building a custom structure or embedded control platform, products such as MH-Z1542B、 MH-441D、 MP511D、 MP510C、 そして ZP201 can support more specialized designs.
What makes the Winsen solution practical for heat pump OEMs
The real value of a professional refrigerant detection solution is not only detection accuracy. For OEM projects, the solution must also be practical in engineering terms. That includes module size, interface method, sensor principle, anti-condensation ability, integration flexibility, and long-term operating stability.
This is exactly why Winsen offers different technical routes across the refrigerant sensor portfolio. Our page combines nです、 熱伝導、 そして 半導体 approaches across different products, allowing manufacturers to choose the most suitable balance of size, response, structure, and output method for their own heat pump platform.
よくある質問
Which Winsen module supports both R32 and R454B?
Several Winsen products support both gases directly, including ZRT512E-R454B & R32 Series、 ZR210, and selected ZRT512C family modules.
Which Winsen refrigerant module is best for compact heat pump products?
For compact designs, the ZR210 is one of the strongest choices because it combines 小型、 低消費電力、 速い応答、 そして 優れた結露防止効果, with a listed size of 37×20×7mm。
Does Winsen provide NDIR solutions for R32 and R454B?
Yes. Winsen’s refrigerant sensor portfolio includes multiple nです solutions for these refrigerants, including the ZRT512E、 ZRT512C family, ZRT510 family, and MH-441D。
Does Winsen provide ppm-level refrigerant gas sensing solutions?
Yes. Products such as MP511D、 MP510C、 そして ZP201 support ppm-level refrigerant detection for different application needs.
Can Winsen support solution selection for different heat pump projects?
Yes. Our refrigerant sensor portfolio includes module and sensor options with different principles, structures, and target gases, which makes it possible to match the solution to different OEM product architectures. The refrigerant sensor page also provides direct contact through [email protected] for project consultation.
結論
For R32 and R454B heat pump development, a professional refrigerant detection solution should not be written as a catalog summary. It should start from the real engineering task: what the equipment needs to detect, how the signal will be used, how much installation space is available, and what kind of integration path the controller requires。
At Winsen, we provide multiple solution paths for this exact purpose—from compact ZR210 modules to higher-range ZRT512E solutions, mainstream ZRT512C family options, dedicated ZRT510 modules, and supporting embedded sensors for customized projects. That allows heat pump manufacturers to choose a solution based on engineering fit, not just on a product name.
