Product Overview
The Fieldpiece SM482V is an advanced wireless 4-port SMAN refrigerant manifold designed for comprehensive HVAC and Refrigeration diagnostics and service. This digital manifold accurately measures low and high pressure, and calculates superheat and subcooling. It features protected thermocouple jacks for temperature measurements and integrates with Job Link Psychrometer probes for enhanced functionality. The device is built for durability with a heavy-duty casing and IP55 dust and water resistance.
Figure 1: Front view of the Fieldpiece SM482V Wireless 4-Port SMAN Refrigerant Manifold, showing the digital display and valve controls.
Key Features
- Accurate measurement of low and high pressure, superheat, and subcooling.
- Integrated vacuum gauge for precise vacuum measurements.
- Protected thermocouple jacks for reliable pipe and outdoor temperature readings.
- Four-valve manifold design for versatile system connections.
- Wireless connectivity to Job Link Psychrometer probes and Job Link System App.
- Data logging capability for up to 168 hours of continuous operation across 9 jobs.
- Temperature compensated system tightness test for leak detection.
- Durable construction with IP55 dust and water resistance.
- Pre-loaded with over 70 refrigerants, including A2Ls.
Setup and Initial Use
- Battery Installation: Open the battery compartment on the rear of the unit. Insert 6 AA batteries, ensuring correct polarity. Close the compartment securely.
- Power On: Press the power button to turn on the manifold. The display will illuminate and show initial readings.
- Refrigerant Selection: Use the "SELECT" button to cycle through the pre-loaded refrigerants. Choose the appropriate refrigerant for your application.
- Zero Pressure: Before connecting to a system, ensure all valves are closed and press the "ZERO PRESSURE" button to calibrate the pressure sensors.
- Connecting Probes: Connect thermocouple pipe clamps to the protected jacks for temperature measurements. For wireless integration, ensure Job Link Psychrometer probes are paired according to their respective manuals.
Figure 2: The SM482V manifold being connected to an HVAC system, demonstrating hose attachment points.
Operating Instructions
Pressure and Temperature Measurement
Connect the manifold hoses to the high and low-pressure ports of the HVAC/R system. Open the appropriate valves on the manifold to read system pressures. The display will show real-time pressure readings, along with superheat and subcooling calculations based on connected temperature probes.
Vacuum Measurement
To measure vacuum, connect the vacuum pump to the manifold's vacuum port. Open the vacuum valve and start the pump. The integrated micron gauge will display the vacuum level. Monitor the reading until the desired vacuum is achieved.
System Tightness Test (Nitrogen Pressure Test)
The SM482V features a temperature-compensated nitrogen pressure test. Connect a nitrogen tank to the system via the manifold. Press the "N2 TEST" button to initiate the test. The manifold will record the initial pressure and monitor for pressure differential (Pdif) over time, indicating potential leaks. Press "STOP/EXIT" to end the test.
Data Logging
The manifold can log up to 168 hours of data. To start data logging, refer to the specific instructions in the full user manual or the Job Link System App. Logged data can be retrieved and analyzed via the Job Link App.
Figure 3: An HVAC technician using the Fieldpiece SM482V on an outdoor air conditioning unit.
Maintenance
- Cleaning: Wipe the unit with a damp cloth. Do not use abrasive cleaners or solvents.
- Battery Replacement: Replace batteries when the low battery indicator appears on the display. Always use 6 new AA alkaline batteries.
- Hose and Gasket Inspection: Regularly inspect hoses and manifold gaskets for wear and tear. Replace damaged components to ensure accurate readings and prevent leaks.
- Storage: Store the manifold in its soft case in a dry environment, away from extreme temperatures.
- Firmware Updates: Periodically check the Fieldpiece website or Job Link App for firmware updates to ensure optimal performance and access to new features.
Figure 4: The Fieldpiece SM482V manifold alongside its protective soft case.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Inaccurate Pressure Readings | Uncalibrated sensors, leaky hoses/gaskets, incorrect refrigerant selected. | Perform "ZERO PRESSURE" calibration. Inspect and replace worn hoses or gaskets. Verify correct refrigerant is selected. |
| Vacuum Reading Fluctuations | Moisture in system, internal manifold leak, contaminated hoses. | Ensure system is thoroughly evacuated. Check manifold for internal leaks (refer to service manual). Purge hoses with nitrogen before vacuuming. |
| Display Not Turning On | Dead batteries, incorrect battery installation. | Replace batteries with new ones. Check battery polarity. |
| Wireless Connection Issues | Out of range, interference, un-paired probes. | Ensure manifold and probes are within range (up to 1000ft line of sight). Reduce interference sources. Re-pair probes according to their instructions. |
Specifications
| Feature | Detail |
|---|---|
| Model | SM482V |
| Item Weight | 5.79 pounds (2.63 kg) |
| Product Dimensions (L x W x H) | 5 x 10.25 x 11.25 inches (12.7 x 26.0 x 28.6 cm) |
| Material | ABS Plastic |
| Power Source | 6 AA Batteries |
| Battery Life | 405 hours (with backlight and wireless OFF) |
| Display | 5" (12.7 cm) LCD w/ backlight |
| Wireless Range | 1000' (305 m) line of sight |
| Maximum Manifold Pressure | 870 Psig (6000 kPa) |
| Vacuum Port | 3/8" for fast evacuations |
| Refrigerant Recovery/Charging Port | 1/4" |
| Suction Line and Liquid Line Ports | 1/4" |
| Ingress Protection Rating | IP55 (Dust/Water Resistance) |
| Operating Environment | 14° to 122° F (-10° to 50° C) at <75% RH |
| Storage Environment | -4° to 140° F (-20° to 60° C) at <80% RH (w/o batteries) |
| Data Port | USB-C for extracting data logs and updating firmware |
Figure 5: Detailed specifications table comparing SM382V and SM482V models.
Warranty Information
The Fieldpiece SM482V Wireless 4-Port SMAN Refrigerant Manifold comes with a 1-year limited warranty from the date of purchase. This warranty covers defects in materials and workmanship under normal use. For detailed warranty terms, conditions, and limitations, please refer to the official warranty document included with your product or visit the Fieldpiece official website.
Note: The warranty does not cover damage caused by misuse, accident, unauthorized modification, neglect, or improper operation.
Support and Contact Information
For technical assistance, product inquiries, or warranty claims, please contact Fieldpiece customer support through the following channels:
- Official Website: Visit the Fieldpiece Store on Amazon for product information, FAQs, and support resources.
- Manufacturer: Fieldpiece Instruments
- Online Resources: Check for updated manuals, firmware, and troubleshooting guides on the official Fieldpiece website.
When contacting support, please have your product model number (SM482V) and purchase date available.
