LEADZM 12,000 BTU 19 SEER 115V WiFi Mini Split AC/Heating System Instruction Manual

1. Product Overview

The LEADZM 12,000 BTU 19 SEER 115V WiFi Enabled Mini Split AC/Heating System is a versatile unit designed for efficient climate control. Featuring inverter technology, it provides both cooling and heating functions for spaces up to 750 square feet. This system is AHRI Certified, indicating high energy efficiency, and includes smart operation capabilities via remote control or a dedicated app.

Figure 1: Overview of the LEADZM 12,000 BTU Mini Split AC/Heating System, including indoor unit, outdoor unit, remote control, and installation kit components.

Figure 2: Visual representation highlighting the energy efficiency of the 19 SEER LEADZM unit compared to lower SEER models, indicating potential energy cost savings.

2. Setup and Installation

Professional installation is required for this system. Ensure all local electrical and building codes are followed. The following steps provide a general overview of the installation process.

2.1. Important Installation Considerations

• The air conditioner must be installed by professional personnel.
• Pay attention to the installation position of indoor and outdoor units to ensure normal use and/or maintenance.
• For units with refrigerant R32 or R454B, ensure both indoor and outdoor units have good ventilation. Strictly prohibit open flame operation in the installation location.
• For units with R410A, R32, or R454B, gas leakage detection must be carried out after pipe connection to ensure a leak-free refrigeration system.
• For R410A, R32, or R454B units, the system must be vacuumed to ensure no air inside.
• Ensure indoor and outdoor connection wires and power supply are connected correctly and reliably.
• If the indoor and outdoor connection pipe exceeds the standard length, extra refrigerant needs to be added. The specific additional quantity depends on the refrigerant type (R410A, R32, or R454B) and model.

2.2. Installation Steps Overview

For a detailed visual guide, please refer to the official installation video below. This video covers the complete installation process from preparation to testing.

Video 1: Comprehensive installation steps for a mini split air conditioner, provided by the seller.

2.2.1. Indoor Unit Installation

1. Check the status of indoor and outdoor units before installation (e.g., broken parts, fan operation, remote control functionality).
2. Verify gas flow from the connector. If no gas is detected, check the evaporator for leaks.
3. Unfix the electric box cover and connect the indoor and outdoor unit connection wires. Double-check wire marks (1, 2, 3, ground) for correct and reliable connection.
4. Based on the installation location, decide the piping direction and cut the face frame case. Clean and smooth the case gap to prevent pipe damage.
5. Adjust the connection pipes, paying attention to horn alignment and wrench strength to prevent nut rupture. Ensure no gas leakage after pipe connection.
6. Connect the drainage pipe. It must be sealed with electrical tape to ensure no water leakage.
7. Wrap the refrigerant pipes, drainage hose, and wiring together using wrapping tape. Retain pipe connectors for later leak detection.
8. Install the wall plate. Ensure it is secure enough to hold the indoor unit.
9. Pass pipes through the wall hole and firmly fix the indoor unit on the mounting plate.

2.2.2. Outdoor Unit Installation

1. Fix the outdoor unit on the mounting bracket. Using rubbers on the feet is suggested to decrease vibration and noise.
2. Open the refrigerant pipes cover.
3. Connect the refrigerant pipes similar to the indoor unit. Control wrench force to prevent nut breakage. Connect the pipe horn to the 2-way and 3-way valves straightly to prevent gas leakage.
4. Open the electrical control box. Connect the indoor and outdoor connection cable to the left hole of the cover, and the power cord to the right hole. Connect the indoor and outdoor connection wires to the electric terminal, paying attention to the marks of 1, 2, 3, and ground on the wires. They must be one-to-one correspondence with the markings on the terminal.
5. Connect the power supply cable to the electric terminal. Ensure all wire connections are correct and reliable. Note: You must switch off the main power supply first before connection.

2.2.3. Vacuum and Leakage Detection

1. Connect the vacuum pump. First, connect one hose from the manifold low pressure gauge to the outdoor unit service port on the three-way valve. Second, connect the manifold gauge to the vacuum pump.
2. Switch on the vacuum pump and open the gauge low pressure valve. For split AC, vacuum the unit for at least 15 minutes until the gauge is maintained at -14.5 psi. For R32 or R454B units, based on pipe length, vacuum for 15-30 minutes with a pump capacity of 4-4.5 CFM.
3. Close the low pressure valve on the manifold gauge first, then switch off the vacuum pump. Hold the pressure for 5 minutes. Ensure the rebound of the compound gauge pointer does not exceed 0.73 psi. If it does, check and repair the leakage point, most likely from the pipe connector.
4. Open the outdoor unit low pressure valve counterclockwise for 1/4 turn with a hexagonal wrench to allow a little refrigerant to fill the system. Close the low pressure valve after 5 seconds. Check all pipe connectors of indoor and outdoor units for leaks using soapy water. If gas leakage is found, repair and tighten the pipe connection.
5. Until no gas leakage is found, clean the connectors and wrap the indoor connector pipes. Seal the wall hole with sealing cement.
6. Keep the gauge at positive pressure and quickly remove the pressure hose from the outdoor unit service valve.
7. Fully open the outdoor unit low pressure and high pressure valves with a hexagonal wrench.
8. Reinstall the protective caps of the service port, low pressure, and high pressure valves of the outdoor unit. Reinstall the valve cover.

2.2.4. Running Test

After installation is complete, switch on the unit for a running test. Instruct the user on how to operate and maintain the air conditioner, including temperature setting, remote control battery replacement, and filter cleaning.

2.3. Additional Installation Resources

For more specific details on pipe and power hookup, refer to this supplementary video:

Video 2: DIY Pipe & Power Hookup guide for mini split AC units, provided by the seller.

3. Operating Instructions

The LEADZM Mini Split AC/Heating System offers smart operation with various modes for personalized comfort. The unit can be controlled via the multifunctional remote control or a smartphone app.

Figure 3: Diagram illustrating key features accessible via remote control and smartphone app, including timing, inverter system, precise temperature regulation, and Eco Mode.

• Temperature Range: The unit operates within a comfortable range of 61°F - 88°F.
• Fan Speed Selection: Adjust fan speed to your preference.
• Sleep Mode: Optimizes settings for comfortable sleep and energy saving.
• 24 Hour Timer: Schedule operation times for convenience.
• ECO Mode: Enhances energy efficiency for reduced power consumption.
• Turbo Mode: Provides rapid cooling or heating when needed.
• Mute Mode: Reduces operational noise for a quieter environment.
• 4-Way Swing Function: Ensures scientific airflow distribution for uniform comfort.

Figure 4: Depiction of the ultra-silent operation of the AC unit, designed not to disturb daily activities or rest.

Figure 5: A user controlling the AC unit remotely via a smartphone app, highlighting the smart home integration and convenience.

4. Maintenance

Regular maintenance ensures optimal performance and longevity of your LEADZM Mini Split AC/Heating System. Key maintenance tasks include:

• Filter Cleaning: Regularly clean or replace air filters to maintain air quality and unit efficiency. Refer to your unit's specific instructions for frequency and method.
• Exterior Cleaning: Wipe down the indoor and outdoor unit exteriors with a soft, damp cloth. Avoid harsh chemicals.
• Drainage Check: Periodically inspect the drainage pipe for blockages or leaks to prevent water damage.
• Professional Inspection: It is recommended to have a qualified technician perform an annual inspection and service to ensure all components are functioning correctly and to check refrigerant levels.

5. Specifications

Figure 6: Detailed dimensions for the 12,000 BTU-115V indoor and outdoor units, including weight and cooling capacity range.

5.1. Package Contents

Figure 7: Illustration of the package contents, showing the indoor unit, outdoor unit, remote control, and various installation accessories divided into two boxes.

The package includes:

• 1 x Air Conditioner (Indoor Unit & Outdoor Unit)
• 1 x Remote Control
• 1 x Installation Kit (including 16.4ft line kit, signal cable, drain hose, sealing gum, screws, rubber feet)

Warm Notice:

• Please confirm VOLTAGE before making a purchase.
• Each unit has 2 packages totally and they may be delivered separately on different days.
• Extra professional installation is required.

6. Warranty and Support

For warranty information, technical support, or service inquiries, please contact LEADZM customer service. Keep your purchase receipt and model number handy for faster assistance.