Introduction
This manual provides detailed instructions for the safe and efficient operation, setup, and maintenance of the Elitech LMG-10 Digital HVAC Manifold Gauge and the Elitech SVP-7 Intelligent HVAC Vacuum Pump. These tools are designed for professional HVAC applications, offering precision and ease of use for various tasks including pressure monitoring, vacuum testing, and refrigerant management.
Safety Information
Always read and understand all safety warnings and instructions before operating the LMG-10 and SVP-7. Failure to follow these instructions may result in electric shock, fire, and/or serious injury.
- Ensure all connections are secure before operation.
- Do not operate in flammable environments.
- Wear appropriate personal protective equipment (PPE), including safety glasses and gloves.
- Refer to local regulations for refrigerant handling and disposal.
- Disconnect power before performing any maintenance or cleaning.
Product Components and Overview
Elitech LMG-10 Digital HVAC Manifold Gauge
- LCD Screen: Displays pressure, temperature, and other operational data.
- Control Buttons: For mode selection, navigation, zeroing, and power.
- Sight Glass: Allows visual inspection of refrigerant flow.
- Control Valves: Regulate refrigerant flow.
- Refrigerant Hose Fittings: Connection points for refrigerant hoses.
- Refrigerant Hose Brackets: For organizing hoses.
- Temperature Probe Port: For connecting temperature clamps.
Elitech SVP-7 Intelligent HVAC Vacuum Pump
- Air Inlet: Point of entry for air/refrigerant vapor.
- Oil Window: Allows visual inspection of oil level and condition.
- Display Screen: Shows vacuum status and operational data.
- Motor: Powers the pump mechanism.
- Oil Drain Plug: For draining used vacuum pump oil.
- Handle: For portability.
- Solenoid Valve: Controls vacuum flow and prevents backflow.
- Oil Tank: Reservoir for vacuum pump oil.
Setup
Initial Setup of LMG-10 Digital Manifold Gauge
- Unpacking: Carefully remove the LMG-10 from its packaging. Inspect for any damage.
- Battery Installation: Open the battery compartment on the back of the unit. Insert the required batteries, ensuring correct polarity. Close the compartment securely.
- Power On: Press and hold the power button to turn on the unit.
- Zeroing: Before use, ensure the manifold gauge is zeroed according to the instructions in the operating section.
Initial Setup of SVP-7 Intelligent HVAC Vacuum Pump
- Unpacking: Carefully remove the SVP-7 from its packaging. Inspect for any damage.
- Oil Filling: The SVP-7 comes with vacuum pump oil. Locate the oil fill port and fill the pump with the provided oil to the indicated level on the oil window. Do not overfill.
- Power Connection: Connect the power cord to a suitable electrical outlet. Ensure the voltage matches the pump's requirements.
- App Download (Optional but Recommended): Download the "Elitech Tools" app from the App Store (iOS) or Google Play Store (Android) for enhanced control and monitoring features.
Operating Instructions
Using the LMG-10 Digital Manifold Gauge
- Connecting Hoses: Connect the appropriate refrigerant hoses to the LMG-10 fittings and to the HVAC system ports (low side, high side, and vacuum/refrigerant tank).
- Power On and Zero: Turn on the LMG-10. Press the "ZERO" button to calibrate the pressure sensors to atmospheric pressure before connecting to a system.
- Temperature Measurement: Attach the temperature clamps to the refrigerant lines to measure superheat and subcooling. The readings will display on the LCD screen.
- Monitoring Pressure: The LCD screen will display real-time pressure readings for both high and low sides, along with corresponding saturation temperatures.
- Mode Selection: Use the "MODE" button to cycle through different measurement units (e.g., psi, kPa, bar) or display modes.
Using the SVP-7 Intelligent HVAC Vacuum Pump
- Connecting to System: Connect the vacuum pump to the HVAC system via the manifold gauge or directly to the system's vacuum port.
- Power On: Press the power button on the SVP-7 to start the pump.
- Monitoring Vacuum: The SVP-7's display screen will show the current vacuum level. For precise monitoring, use the Elitech Tools app.
- Intelligent Control: The pump features intelligent control of the motor and solenoid valve, which will open or close instantly according to the motor status, optimizing the evacuation process.
- Vacuum Leakage Test: The SVP-7 can monitor the process of pressure holding and vacuum leakage test precisely with temperature compensation. Refer to the app for detailed leakage test procedures.
- Shut Down: Once the desired vacuum level is achieved, close the system valves, then turn off the pump. Disconnect hoses carefully.
App Integration (Elitech Tools App)
The Elitech Tools App allows for remote control and detailed monitoring of both the LMG-10 and SVP-7. Key features include:
- Motor Control: Remotely start and stop the SVP-7 vacuum pump.
- Data Logging & Exporting: Record and export vacuum and pressure data over time.
- Alarm Modes: Set up alerts for specific pressure or vacuum thresholds.
- Vacuum Graph Display: Visualize vacuum changes in real-time.
- Temperature Monitoring: View temperature readings from the LMG-10.
- Historical Data Checking: Access past operational data for analysis.
To connect, ensure Bluetooth is enabled on your mobile device and follow the in-app pairing instructions.
Maintenance
LMG-10 Digital Manifold Gauge Maintenance
- Cleaning: Wipe the unit with a soft, damp cloth. Do not use abrasive cleaners or solvents.
- Storage: Store the LMG-10 in a dry, cool place when not in use. Remove batteries if storing for extended periods to prevent leakage.
- Sensor Calibration: Periodically check and recalibrate the pressure sensors as needed, especially if accuracy issues are suspected.
SVP-7 Intelligent HVAC Vacuum Pump Maintenance
- Oil Level Check: Regularly check the oil level through the oil window. Maintain the oil level between the MIN and MAX marks.
- Oil Change: Change the vacuum pump oil regularly, especially after each major job or if the oil appears cloudy or discolored. To change oil, drain old oil via the oil drain plug and refill with new, clean vacuum pump oil.
- Cleaning: Keep the exterior of the pump clean. Ensure air vents are free from obstructions.
- Storage: Store the SVP-7 in a dry, well-ventilated area.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| LMG-10 does not power on. | Dead or incorrectly installed batteries. | Replace batteries; ensure correct polarity. |
| Inaccurate pressure readings on LMG-10. | Needs zeroing; sensor issue; temperature compensation error. | Perform zeroing procedure; contact support if issue persists. |
| SVP-7 not pulling vacuum effectively. | Low or contaminated oil; system leak; clogged air inlet. | Check/change oil; check system for leaks; clear air inlet. |
| SVP-7 is excessively noisy. | Low oil level; worn components. | Check and refill oil; if noise persists, contact support. |
| App not connecting to devices. | Bluetooth off; device not in pairing mode; app outdated. | Ensure Bluetooth is on; restart devices; update app. |
Specifications
| Feature | Detail |
|---|---|
| Product Dimensions | 18 x 13 x 20 inches |
| Item Weight | 42 Pounds |
| Brand | Elitech |
| Material | Plastic |
| LMG-10 Screen Size | 4 Inches |
| SVP-7 Vacuum Capacity | 7 CFM (Cubic Feet per Minute) |
| App Compatibility | iOS and Android (Elitech Tools App) |
Warranty and Support
Elitech products are backed by a manufacturer's warranty. For specific warranty terms and conditions, please refer to the warranty card included with your product or visit the official Elitech website. For technical support, troubleshooting assistance, or service inquiries, please contact Elitech customer service.
Manufacturer: Elitech
Website: www.elitech.com
Contact Information: Refer to the Elitech website or product packaging for the most current contact details.
