The NAVAC Nexus series represents a significant advancement in digital manifold technology, combining field-proven durability with seamless connectivity for modern HVAC professionals. Available in two configurations: the NX1 traditional 2-valve design and the NX4 advanced 4-valve system. These manifolds transform how technicians approach commissioning, diagnostics, and evacuation procedures.
Why Nexus Manifolds Excel in Real-World Applications
NAVAC engineered the Nexus series specifically for the challenges technicians face daily. The aluminum body construction with quarter-turn ball valves ensures smooth operation even after years of field use, while the impact-resistant rubber covering protects against inevitable drops and bumps. The foldable hidden hook design enhances portability without compromising durability.
Both models feature Class 0.4 accuracy, critical for precise superheat and subcooling calculations that directly impact system performance and efficiency. This accuracy level ensures technicians can confidently diagnose issues and verify proper charge without second-guessing their measurements.
Model Comparison: Choosing Your Configuration
NX1 Nexus: Streamlined Traditional Design
The NX1 delivers comprehensive diagnostic capability in the familiar 2-valve configuration most technicians prefer. Perfect for standard service and maintenance work, it includes two wireless temperature probes for immediate superheat/subcooling calculations. The traditional port layout maintains workflow efficiency while adding modern wireless capabilities.
Ideal for:
- Service and maintenance calls requiring standard diagnostics
- Technicians preferring traditional manifold workflows
- Companies standardizing on proven 2-valve configurations
- Budget-conscious operations seeking maximum value
NX4 Nexus: Advanced 4-Valve Platform
The NX4 revolutionizes workflow efficiency with its dedicated 3/8″ vacuum port, enabling single-setup operations from evacuation through charging. This fourth valve eliminates the need to disconnect hoses during evacuation, reducing contamination risk and saving 10-15 minutes per system commissioning. The larger vacuum port accelerates evacuation times by up to 30% compared to standard 1/4″ connections.
Ideal for:
- Installation crews performing multiple evacuations daily
- Commercial work requiring faster turnaround times
- Technicians seeking maximum workflow efficiency
- Companies focused on reducing evacuation-related callbacks
Technical Innovation That Matters
Four Operational Modes
Both models feature four distinct operational modes optimized for specific tasks:
- Manifold Mode: Real-time superheat/subcooling with automatic refrigerant property calculations
- Leak Test Mode: Pressure monitoring with decay tracking for leak verification
- Evacuation Mode: Vacuum level monitoring with rate-of-rise calculations
- Decay Test Mode: System integrity verification through controlled pressure/vacuum decay analysis
Comprehensive Refrigerant Database
Supporting over 100 refrigerant types including all A2L variants (R-32, R-454B, R-454C), the Nexus manifolds future-proof your tool investment. Regular firmware updates ensure compatibility with emerging refrigerants, eliminating the need for manifold replacement as the industry transitions.
Wireless Connectivity Excellence
Bluetooth connectivity extends beyond simple data transfer. The manifolds communicate with:
- NAVAC NST1/NST2 wireless temperature clamps for line temperature measurements
- NAVAC NMV1S micron gauge for precise vacuum verification
- measureQuick app for comprehensive diagnostics and documentation
- MyNAVAC app for firmware updates
NEXUS 2 Generation: NX1G
The NX1G represents the next generation of the NEXUS platform, building on the proven NX1 foundation with a redesigned 5.5-inch high-definition color touchscreen and four customizable menu themes for personalized workflow preferences. The NEXUS 2 interface delivers enhanced navigation through manifold, leak test, evacuation, and decay test modes with improved visual clarity and responsiveness. Support for over 100 refrigerants including A2L blends like R-454B ensures readiness for the ongoing refrigerant transition, while the heavy-duty protective shell and foldable hidden hook enhance durability and portability for demanding field conditions.
The NX1G maintains the streamlined 2-valve configuration with three 1/4-inch SAE ports and one 3/8-inch SAE evacuation port, paired with included NST1 and NST2 wireless Bluetooth temperature clamps for immediate superheat and subcooling calculations. Class 0.4 accuracy and a pressure range of -30 inHg to 720 psi carry forward from the original NEXUS series. Bluetooth connectivity with 260-foot range enables wireless data streaming to the myNAVAC app and measureQuick, while optional integration with the NMV1S micron gauge extends vacuum measurement capability down to 0.01 microns for precise evacuation verification.