1. Introduction
This manual provides essential information for the safe and efficient operation, installation, and maintenance of your Upstreman UPI12 12000 BTU Mini Split Air Conditioner. Please read this manual thoroughly before installation and use, and retain it for future reference. This unit offers both cooling and heating functionalities, designed for spaces up to 750 Sq Ft.
2. Safety Information
Always adhere to local and national electrical codes. Professional installation by licensed technicians is highly recommended for optimal efficiency and performance. Ensure the power supply matches the unit's requirements (115V for this model). Disconnect power before any maintenance or servicing. Do not attempt to repair the unit yourself if you are not qualified.
3. What's in the Box
- Indoor Unit
- Outdoor Unit
- Installation Kit (includes mounting brackets, copper connection pipes, drain pipe, communication wire, putty, tape, screws, expansion bolts)
- Remote Control with Batteries
- User Manual
- WiFi Download Guide

Figure 1: All components included in the Upstreman UPI12 Mini Split Air Conditioner package. This includes the indoor unit, outdoor unit, mounting brackets, various pipes and wires, remote control, and documentation.
4. Specifications
| Feature | Specification |
|---|---|
| Brand | Upstreman |
| Model Name | UPI12 Split-air conditioner |
| Cooling Power | 12000 British Thermal Units |
| Seasonal Energy Efficiency Ratio (SEER) | 20 |
| Voltage | 115 Volts |
| Noise Level | 40 Decibels |
| Floor Area Coverage | Up to 750 Square Feet |
| Refrigerant | R-32 |
| Special Features | 4 Way Swing, Child Lock, Inverter Compressor, Remote Controlled, WiFi Enabled |
5. Setup and Installation
Professional installation is recommended for optimal performance and to ensure compliance with all regulations. The unit comes with heavy-duty, waterproof mounting brackets that support up to 600 pounds. These brackets are included to simplify the installation process.

Figure 2: The outdoor unit of the Upstreman Mini Split Air Conditioner shown with the included mounting brackets. These brackets are designed for durability and ease of installation.
5.1 Installation Video Guide
For a detailed visual guide on the installation process, please refer to the official seller video below. This video covers essential steps for setting up your mini split air conditioner.
Video 1: Official installation guide for the Upstreman Mini Split Air Conditioner. This video provides step-by-step instructions for mounting both indoor and outdoor units, connecting pipes, and electrical wiring.
6. Operating Instructions
Your Upstreman Mini Split AC unit offers multiple modes and smart control options for personalized comfort.
6.1 Remote Control and Smart Control
The unit comes with a remote control for easy operation. Additionally, it is WiFi enabled, allowing you to manage your air conditioner remotely via a smartphone app. This feature is ideal for adjusting the temperature before you arrive home.

Figure 3: A smartphone displaying the Upstreman app interface, used to control the mini split air conditioner remotely. Various modes like Cool, Heat, Dry, Fan, Sleep, Auto, and Eco are visible.
6.2 Available Modes
- Cool: For cooling the room.
- Heat: For heating the room (operates reliably down to -4°F).
- Dry: Dehumidifies the air.
- Fan: Circulates air without cooling or heating.
- Sleep: Adjusts temperature for comfortable sleep and operates quietly.
- Auto: Automatically selects the appropriate mode based on room temperature.
- Eco: Optimizes settings for energy saving.
6.3 Temperature Display (Celsius/Fahrenheit)
The unit's display can show temperature in either Celsius or Fahrenheit. To switch between these units, refer to the video below for a quick guide.
Video 2: Instructions on how to switch the temperature display between Celsius and Fahrenheit on the Upstreman Mini Split Air Conditioner remote control.
6.4 Ultra-Quiet Operation
The unit is designed for low-noise operation, ensuring a peaceful environment, especially during sleep. The indoor unit display automatically turns off after 10 seconds of inactivity to prevent sleep disturbances.

Figure 4: The indoor unit operating in a bedroom, highlighting its ultra-quiet performance and features like display off and programmable timer for undisturbed sleep.
6.5 4-Way Swing and Timer
The 4-way swing feature ensures even distribution of air throughout the room. A programmable timer allows you to set the unit to turn on or off automatically within a 0.5-24 hour period.
7. Maintenance
Regular maintenance ensures the longevity and efficiency of your air conditioner.
- Self-Cleaning Function: The unit features a self-cleaning function at a high temperature of 136°F to maintain internal hygiene and fresh air quality.
- Washable Filter: The air filter is washable. Clean it regularly to prevent dust buildup and maintain optimal airflow.
8. Troubleshooting
If you encounter issues with your unit, please check the following common problems before contacting support:
- Unit not turning on: Ensure the unit is properly plugged in and the circuit breaker is not tripped. Check remote control batteries.
- Insufficient cooling/heating: Verify the set temperature is appropriate. Check if filters are clean. Ensure no obstructions are blocking airflow to indoor or outdoor units.
- Unusual noises: Minor operational noises are normal. If loud or unusual, check for loose parts or contact support.
- WiFi connectivity issues: Ensure your home WiFi network is active and the unit is within range. Follow the WiFi download guide for troubleshooting app connection.
9. Warranty and Support
Your Upstreman UPI12 Mini Split Air Conditioner comes with an 18-month warranty. For any questions or support during the use of your mini split AC, please contact Upstreman Innovation Direct, the seller. Their contact information can typically be found on your purchase receipt or the product packaging.