Fieldpiece SMAN360 3-Port Digital Manifold with Micron Gauge - Instruction Manual

1. Introduction

The Fieldpiece SMAN360 is a professional-grade 3-port digital manifold designed for HVACR technicians. It integrates advanced features such as automatic target superheat calculation, a built-in micron gauge with alarm, and the ability to perform linear adjustments of pressure sensors. This manual provides essential information for the proper setup, operation, and maintenance of your SMAN360 unit, ensuring accurate measurements and efficient workflow.

2. Safety Information

Always observe standard safety precautions when working with refrigerants and HVACR systems. Wear appropriate personal protective equipment (PPE) such as safety glasses and gloves. Ensure the system is depressurized before connecting or disconnecting hoses. Do not expose the SMAN360 to extreme temperatures or moisture beyond its specified operating conditions.

3. Product Overview

The SMAN360 features a large, backlit display for clear visibility of all measurements. It includes three ports for connecting refrigerant hoses, dedicated buttons for navigation, unit selection, and alarm settings. The robust design is built to withstand the demands of field use.

Figure 3.1: Front view of the SMAN360 Digital Manifold with pressure hoses connected. This image shows the main display, control buttons, and the three connection ports at the bottom, along with the attached thermocouples.

Figure 3.2: Front view of the SMAN360 Digital Manifold without pressure hoses connected. This view highlights the compact design and the integrated hook for hanging the unit during use.

4. Setup and Installation

4.1 Battery Installation

The SMAN360 requires 6 AA batteries (included). To install:

1. Locate the battery compartment on the rear of the unit.
2. Open the battery cover.
3. Insert 6 AA batteries, ensuring correct polarity (+/-).
4. Close the battery cover securely.

The unit is designed for approximately 350 hours of battery life.

4.2 Connecting Thermocouples

The SMAN360 comes with two Type-K thermocouples (TC24). Connect these to the designated ports on the unit for temperature measurements required for superheat and subcooling calculations.

4.3 Connecting Hoses

Connect your refrigerant hoses to the three ports at the bottom of the manifold. Ensure connections are tight to prevent leaks.

5. Operating Instructions

5.1 Powering On/Off

Press and hold the power button (usually indicated by a sun icon or power symbol) to turn the unit on or off.

5.2 Selecting Refrigerant

The SMAN360 supports 45 refrigerants. Use the "Refrigerant" button and arrow keys to scroll through and select the appropriate refrigerant for your system. Updates can be performed via the mini USB connection.

5.3 Micron Vacuum Gauge Operation

The built-in micron gauge provides resolution from 50 to 9,999 microns. It features:

• Micron Alarm: Set a target micron level. The alarm will sound when the vacuum reaches this level, indicating completion of the evacuation process.
• Stopwatch: Monitor the duration of the vacuum process.
• Rate Indicator: Observe the rate of vacuum decay.

5.4 Superheat and Subcooling Calculations

The SMAN360 automatically calculates target superheat and displays simultaneous superheat and subcooling values, eliminating manual calculations and guesswork.

5.5 Pressure Sensor Adjustment

The SMAN360 allows for linear adjustment of pressure sensors based on refrigerant type, temperature, and pressure, which can be performed directly in the field for enhanced accuracy.

6. Maintenance

6.1 Cleaning

Wipe the unit with a damp cloth. Do not use abrasive cleaners or solvents. Ensure the unit is dry before storage.

6.2 Storage

Store the SMAN360 in its padded carrying case (ANC10) when not in use to protect it from dust, dirt, and physical damage. Avoid storing in areas with extreme temperatures or high humidity.

Figure 6.1: The padded carrying case (ANC10) for the SMAN360, designed to protect the unit during transport and storage.

Remove batteries if the unit will not be used for an extended period to prevent leakage.

7. Troubleshooting

• Unit does not power on:
  • Check battery installation and ensure correct polarity.
  • Replace batteries with fresh ones.
• Inaccurate readings:
  • Ensure proper connection of hoses and thermocouples.
  • Verify the correct refrigerant type is selected.
  • Perform a field adjustment of pressure sensors if necessary.
  • Ensure the unit is not exposed to extreme temperature fluctuations during measurement.
• Display issues (e.g., garbled text, blank screen):
  • Try removing and reinserting batteries.
  • Ensure the unit has not been exposed to moisture or physical shock.
  • If the issue persists, contact Fieldpiece support.
• Micron gauge not reading:
  • Ensure the vacuum pump is operating correctly and connections are sealed.
  • Check for leaks in the system.

8. Specifications

Figure 8.1: A visual representation of the SMAN360's dimensions, showing its approximate size relative to a person for scale.

9. Warranty and Support

For warranty information, technical support, or service inquiries, please refer to the official Fieldpiece website or contact their customer service directly. Keep your proof of purchase for warranty claims.

Manufacturer: SMAN360 3-Port Digital Manifold with Micron Gauge (Fieldpiece)

Place of Business: SANDY, UT, 84070 US