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MACURCO

MACURCO is a manufacturer of gas detection and refrigerant leak detection equipment, with a product line focused on fixed-point sensors for commercial and industrial applications. The brand is known for its infrared (IR) sensor technology used in refrigerant leak detectors, particularly for Variable Refrigerant Flow (VRF) systems. MACURCO detectors are designed to monitor for refrigerant leaks in HVAC-R environments, covering a range of common refrigerants including R-32, R-410A, R-404A, R-134A, R-407C, R-452B, R-455A, and R-1234ze. The detectors operate on a charging voltage of 14 to 24V DC and provide output via Modbus RS-485, enabling integration with building management systems (BMS) or standalone alarm panels. MACURCO offers both A2L-compatible models (for mildly flammable refrigerants) and non-A2L models, with detection ranges specified in parts per million (PPM) or lower explosive limit (LEL) depending on the variant. The sensors are infrared type, which provides selectivity to target gases and reduces false alarms from non-target compounds. MACURCO products are typically used in mechanical rooms, chiller plants, supermarket refrigeration systems, and data center cooling applications where refrigerant leak detection is required for safety compliance and equipment protection. 3G Electric supplies a range of MACURCO VRF refrigerant leak detectors, including models for different refrigerants and compatibility levels, supporting global procurement with logistics assistance. The detectors are designed for wall-mount or duct-mount installation and are rated for indoor use. MACURCO does not publicly disclose specific IP ratings for all models, but the detectors are intended for dry, conditioned spaces. The brand's focus on infrared sensing and Modbus communication aligns with industry trends toward digital, networked gas detection systems. For procurement specialists and plant engineers, MACURCO detectors offer a standardized platform for refrigerant monitoring across multiple gas types, with the ability to select A2L-compatible units where required by local codes or system design. 3G Electric provides access to these detectors with multiple SKUs to match specific refrigerant and output requirements.

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About MACURCO

MACURCO is a manufacturer of gas detection and refrigerant leak detection equipment, with a product line focused on fixed-point sensors for commercial and industrial applications. The brand is known for its infrared (IR) sensor technology used in refrigerant leak detectors, particularly for Variable Refrigerant Flow (VRF) systems. MACURCO detectors are designed to monitor for refrigerant leaks in HVAC-R environments, covering a range of common refrigerants including R-32, R-410A, R-404A, R-134A, R-407C, R-452B, R-455A, and R-1234ze. The detectors operate on a charging voltage of 14 to 24V DC and provide output via Modbus RS-485, enabling integration with building management systems (BMS) or standalone alarm panels. MACURCO offers both A2L-compatible models (for mildly flammable refrigerants) and non-A2L models, with detection ranges specified in parts per million (PPM) or lower explosive limit (LEL) depending on the variant. The sensors are infrared type, which provides selectivity to target gases and reduces false alarms from non-target compounds. MACURCO products are typically used in mechanical rooms, chiller plants, supermarket refrigeration systems, and data center cooling applications where refrigerant leak detection is required for safety compliance and equipment protection. 3G Electric supplies a range of MACURCO VRF refrigerant leak detectors, including models for different refrigerants and compatibility levels, supporting global procurement with logistics assistance. The detectors are designed for wall-mount or duct-mount installation and are rated for indoor use. MACURCO does not publicly disclose specific IP ratings for all models, but the detectors are intended for dry, conditioned spaces. The brand's focus on infrared sensing and Modbus communication aligns with industry trends toward digital, networked gas detection systems. For procurement specialists and plant engineers, MACURCO detectors offer a standardized platform for refrigerant monitoring across multiple gas types, with the ability to select A2L-compatible units where required by local codes or system design. 3G Electric provides access to these detectors with multiple SKUs to match specific refrigerant and output requirements.

Common Applications

  • Commercial HVAC — MACURCO RD-VRF-R410A-PPM-M for refrigerant leak detection in VRF systems in office buildings
  • Supermarket refrigeration — MACURCO RD-VRF-R404A-PPM-M for monitoring R-404A leaks in walk-in coolers and freezers
  • Data center cooling — MACURCO RD-VRF-R32-PPM-M for A2L refrigerant detection in precision cooling units
  • Chiller plant — MACURCO RD-VRF-R134A-PPM-M for leak detection in centrifugal or screw chiller systems
  • Industrial process cooling — MACURCO RD-VRF-R407C-PPM-M for monitoring refrigerant leaks in manufacturing facilities
  • Cold storage warehouses — MACURCO RD-VRF-R452B-LEL-M for LEL-based detection in large ammonia-free refrigeration systems

Frequently asked questions

Common questions about MACURCO from 3G Electric.

What refrigerants are compatible with MACURCO VRF refrigerant leak detectors?

MACURCO VRF refrigerant leak detectors are available for a range of common refrigerants, including R-32, R-410A, R-404A, R-134A, R-407C, R-452B, R-455A, and R-1234ze. Each detector is factory-calibrated for a specific refrigerant, so you must select the model matching the gas in your system. A2L-compatible models are available for mildly flammable refrigerants like R-32 and R-455A, while non-A2L models cover standard refrigerants. The detection range is specified in PPM or LEL depending on the variant.

How does the MACURCO RD-VRF series communicate with building management systems?

The MACURCO RD-VRF series refrigerant leak detectors use Modbus RS-485 output for communication. This allows integration with building management systems (BMS), programmable logic controllers (PLCs), or dedicated alarm panels. The Modbus protocol provides digital data transmission of gas concentration levels and alarm status, enabling remote monitoring and logging. The detectors require a 14 to 24V DC power supply and are typically wired in a daisy-chain topology for multiple units.

What is the difference between A2L-compatible and non-A2L MACURCO refrigerant detectors?

A2L-compatible MACURCO detectors are designed for mildly flammable refrigerants classified as A2L under ASHRAE Standard 34, such as R-32 and R-455A. These detectors meet safety requirements for use with low-flammability refrigerants, including lower detection thresholds and compliance with relevant standards. Non-A2L models are for non-flammable refrigerants like R-410A and R-404A. Both types use infrared sensors and Modbus output, but the A2L variants are calibrated for the specific gas and may have different alarm setpoints.

What is the typical installation environment for MACURCO refrigerant leak detectors?

MACURCO refrigerant leak detectors are intended for indoor installation in dry, conditioned spaces such as mechanical rooms, chiller plants, and supermarket refrigeration areas. They are not rated for outdoor or wet locations. The detectors can be wall-mounted or duct-mounted, depending on the application. They should be installed near potential leak sources, such as refrigerant piping joints, valves, or compressors, and at a height appropriate for the refrigerant density (heavier-than-air refrigerants require low mounting).

Can MACURCO detectors be used for continuous monitoring in VRF systems?

Yes, MACURCO VRF refrigerant leak detectors are designed for continuous monitoring of refrigerant concentrations in Variable Refrigerant Flow systems. They operate on a 14 to 24V DC supply and provide real-time Modbus RS-485 output. The infrared sensor technology allows for stable, long-term operation with minimal drift. The detectors can be integrated into a safety system that triggers alarms or shuts down equipment when refrigerant levels exceed set thresholds, helping to prevent asphyxiation risks and equipment damage.

Does 3G Electric supply MACURCO products?

Yes — 3G Electric (S) Pte. Ltd. supplies MACURCO products. We stock the MACURCO catalog and supply genuine factory-original products with full manufacturer warranty and technical support.