COSTWAY 11500 BTU Mini Split Air Conditioner and Heater Pump System User Manual

Introduction

This manual provides essential information for the safe and efficient operation of your COSTWAY 11500 BTU Mini Split Air Conditioner and Heater Pump System. Please read all instructions carefully before installation and use.

Important Safety Information

WARNING: Installation of this AC unit requires a licensed HVAC professional. Attempting self-installation may result in property damage, injury, or voiding of warranty. Always consult with a qualified technician for installation and maintenance.

• Ensure proper grounding for electrical connections.
• Do not block air inlets or outlets of either unit.
• Keep flammable materials away from the unit.
• Regularly clean filters to maintain efficiency and air quality.
• In case of unusual sounds, smells, or smoke, immediately turn off the unit and disconnect power. Contact a qualified technician.

Package Contents

Verify all components are present before beginning installation:

• 1 x Indoor Unit
• 1 x Outdoor Unit
• 1 x 13 ft Copper Connection Pipe - Air Pipe
• 1 x 13 ft Copper Connection Pipe - Liquid Pipe
• 1 x 19 ft Communication Wire
• 1 x 6.5 ft Drain Hose
• 1 x Remote Control
• 1 x Wall Bracket for Remote Control
• 1 x Wall Sleeve
• 1 x Wall Cap
• 1 x Drain Elbow
• 1 x Tape
• 1 x Putty
• 1 x User Guide

Setup and Installation

Professional Installation Required: As noted in the safety information, installation must be performed by a licensed HVAC professional. The following steps provide a general overview for informational purposes only.

1. Indoor Unit Installation

• Mounting Plate: Securely attach the mounting plate to a hard, flat, and firm wall to prevent vibration. Ensure adequate clearance from the ceiling (greater than 15cm), obstacles (greater than 20cm), and floor (230-260cm).
• Drill Wall Hole: Drill a wall hole for refrigerant piping, communication wire, and drain hose. The hole should be inclined slightly downward (5-10 degrees) and have a diameter of 60-80mm. Avoid wires, plumbing, and gas lines.
• Connection Cable: Pass the power cable from the indoor unit's back to the terminal board and fix it with a clamp.
• Refrigerant Piping: Connect the copper connection pipes to the indoor unit. Tighten the taper nuts with fingers first, then use two wrenches to secure them. Refer to the torque specifications provided in the manual for correct tightening.
• Drain Hose: Connect the drain hose to the water outlet pipe, ensuring it is fixed firmly and sloped downward to prevent water accumulation.
• Wrap Piping: Wrap refrigerant piping, wires, and drain pipe together with wrapping tape.
• Mount Indoor Unit: Carefully pass the wrapped piping through the wall hole. Hang the indoor unit onto the mounting plate, ensuring it clicks into place.
• Seal Wall Hole: Use the provided pipe protecting ring and putty to seal the wall hole, preventing air and moisture ingress.

2. Outdoor Unit Installation

• Mounting Bracket: Install the outdoor unit mounting bracket on a firm, flat surface. Ensure at least 6 expansion bolts are used for secure fixation. Maintain specified clearances: >20cm to top obstruction, >30cm to side obstructions, >10cm air in side, >200cm air out side.
• Fix Outdoor Unit: Place the outdoor unit onto the brackets and fix its feet with 4 screws.
• Connect Refrigerant Piping: Connect the copper pipes to the outdoor unit's stop valves. Tighten the taper nuts with fingers, then use two wrenches to achieve the specified torque.
• Electrical Connections: Remove the electrical box cover. Connect the cables to the terminal board according to the wiring diagram provided inside the box cover. Use clamps to fix the cables securely.
• Vacuumizing: Before releasing refrigerant, vacuumize the system. Connect a vacuum pump and manifold gauge set to the stop valves. Fully open the manifold valve handle (Lo) and apply vacuum for at least 15 minutes until the pressure gauge reads -0.1MPa (-76cmHg). Maintain pressure for 3-5 minutes after vacuumizing to check for springback (pressure should be ≤0.05MPa).
• Release Refrigerant: Fully open all liquid and gas valves using a hex wrench. Screw all caps back on and tighten them.

Operating Instructions

Your mini split system offers multiple ways to control your comfort.

1. Control Methods

• Remote Control: Use the included remote control with digital display for direct control.
• Wi-Fi Enabled: Connect the unit to your home Wi-Fi network to control it via a smartphone app.
• Voice Control: Compatible with Alexa or Google Assistant for convenient voice commands.

2. Operating Modes and Features

The system offers 7 operating modes and 7 fan speeds:

• Modes: Auto, Cool, Heat, Dry (dehumidification), Fan, Sleep, ECO.
• Fan Speeds: Auto, Low, Low-mid, Mid, Mid-high, High, Strong.
• 4D Auto Swing: Automatically adjusts airflow direction for even distribution.
• Child Lock: Prevents unintended changes to settings.
• I Feel: Senses the temperature around the remote control to optimize comfort.
• Health: Activates specific functions for improved air quality.
• Sleep Mode: Operates quietly (as low as 33dB) and can turn off the display for undisturbed rest.
• 24-hour Timer: Schedule the unit to turn on or off automatically.

Maintenance

Regular maintenance ensures optimal performance and longevity of your unit.

• Self-Cleaning Function: The unit features a 133℉ self-cleaning function to make maintenance easier and air cleaner.
• Removable & Washable Filter: The air filter is removable and washable. Clean it regularly to prevent dust buildup and maintain airflow.

Troubleshooting

If you encounter issues with your unit, refer to the following general troubleshooting tips. For complex problems, contact a licensed HVAC professional.

• Unit Not Turning On: Check power supply, ensure the remote control has fresh batteries, and verify the unit is plugged in correctly.
• Insufficient Cooling/Heating: Ensure all doors and windows are closed. Check if air filters are clean. Verify the correct mode and temperature settings are selected.
• Unusual Noises: Minor noises during operation are normal. If loud or unusual noises occur, turn off the unit and contact support.
• Water Leakage: Ensure the drain hose is properly installed, sloped downward, and not blocked.

Specifications

Warranty and Support

COSTWAY provides extended service and premium support for its products.

• Single Zone Models: 8-year compressor warranty + 5-year parts warranty.
• Lifetime Technical Support: Available 24/7 via phone, email, or live chat.

For any inquiries or assistance, please contact COSTWAY customer service.