Installation Guide
Tools Needed:
- Adjustable wrench
- Level
- Screwdrivers (flat and Phillips)
- Pipe cutter
- Vacuum pump
- Manifold gauge set
- Torque wrench
Step-by-Step Installation
- Choose Installation Location: Select a location with proper clearance (minimum 30cm from walls and ceiling) on a solid wall that can support unit weight.
- Mount Indoor Unit Bracket: Securely mount the mounting plate to the wall using appropriate anchors for your wall type.
- Install Outdoor Unit: Place outdoor unit on a stable, level surface with proper ventilation clearance (minimum 50cm on all sides).
- Connect Refrigerant Pipes: Connect copper pipes between indoor and outdoor units, ensuring proper insulation on all connections.
- Electrical Connection: Connect to a properly grounded 220-240V, 50Hz, dedicated circuit. Follow local electrical codes.
- Vacuum and Charge System: Evacuate air and moisture from refrigerant lines using vacuum pump for minimum 15 minutes.
- Test Run: Run the system in cooling and heating modes to check for proper operation and refrigerant charge.
Specifications
| Model Series | AS-24UR4SYDDE / AO-24UR4SYDDE |
| Type | Inverter Split System Air Conditioner |
| Color | White / Titanium Silver |
| Cooling Capacity | 24,000 BTU/h (7.0 kW) |
| Heating Capacity | 26,000 BTU/h (7.6 kW) |
| Noise Level (Indoor) | 19-38 dB |
| Control Type | Remote Control with LED Display |
| Energy Rating (Cooling/Heating) | A++ / A+ |
| Power Requirements | 220-240V, 50Hz, 1Ph |
| Refrigerant Type | R32 (Eco-friendly) |
| Dimensions Indoor (HxWxD) | 29.5 x 89.5 x 20.5 cm |
| Dimensions Outdoor (HxWxD) | 55.5 x 79.5 x 29.5 cm |
| Weight (Indoor/Outdoor) | 9.5 kg / 31.5 kg |
| Operating Temperature (Heating) | -15°C to 24°C |
Warranty Information
- Full Warranty: 2 years parts and labor
- Compressor Warranty: 5 years on inverter compressor
- Extended Warranty: Optional 5-year extended warranty available
For warranty service, contact Hisense Customer Service at 1-800-423-0333 or visit Hisense.com
Key Features
Inverter Technology
Advanced inverter compressor adjusts speed to maintain desired temperature, reducing energy consumption by up to 40% compared to conventional units.
4-Way Airflow
Adjustable vertical and horizontal louvers allow precise control of air direction for optimal comfort throughout the room.
Turbo Heating Mode
Rapid heating function quickly warms the room during cold weather, reaching maximum heating capacity in minutes.
Self-Cleaning Function
Automatic cleaning cycle removes moisture from the heat exchanger to prevent mold and bacteria growth, maintaining air quality.
Wi-Fi Smart Control
Connect to home Wi-Fi for remote control via smartphone app, allowing temperature adjustment, scheduling, and energy monitoring.
Sleep Mode
Intelligent sleep mode automatically adjusts temperature and fan speed for optimal comfort while sleeping, reducing noise to minimum levels.
Operating Modes Explained
Auto Mode
System automatically selects cooling or heating based on room temperature
Cool Mode
Standard cooling operation with adjustable temperature and fan speed
Heat Mode
Heating operation with efficient heat pump technology
Dry Mode
Dehumidification without significant cooling, ideal for humid days
Fan Mode
Air circulation only without cooling or heating
Eco Mode
Energy-saving operation with optimized performance
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Unit won't start | Power issue, remote control batteries dead, circuit breaker tripped | Check power supply, replace remote batteries, reset circuit breaker |
| Poor cooling/heating | Dirty filters, blocked airflow, incorrect temperature setting | Clean filters, clear obstructions, set appropriate temperature |
| Water leaking indoors | Clogged drain pipe, improper installation slope | Clear drain pipe, ensure proper drainage slope |
| Unusual noises | Loose parts, debris in fan, ice buildup | Tighten components, clean fan blades, defrost system |
| Frozen indoor unit | Dirty filters, low refrigerant, fan motor issue | Clean filters, check refrigerant charge, inspect fan motor |
| Remote not working | Batteries dead, signal blocked, remote damaged | Replace batteries, ensure line of sight, check remote |
Error Codes
- E1: Room temperature sensor failure - Check sensor connection
- E2: Pipe temperature sensor failure - Check sensor connection
- E3: High pressure protection - Check for blockage, clean outdoor unit
- E4: Low pressure protection - Check for leaks, refrigerant charge
- E5: Compressor overload - Allow system to cool, check voltage
- E6: Communication error - Check wiring between indoor/outdoor units
- E7: Outdoor fan motor error - Check fan motor and capacitor
- E8: AC overcurrent protection - Check electrical connections
Manual Downloads
Current Model Manuals
AS-24UR4SYDDE
24K BTU Inverter Split System
AS-18UR4SYDDE
18K BTU Inverter Split System
AS-12UR4SYDDE
12K BTU Inverter Split System
AS-09UR4SYDDE
9K BTU Inverter Split System
Popular Previous Models
AS-24UR4SA
24K BTU Smart AC
AS-18UR3S
18K BTU Energy Saver
AS-12UR2S
12K BTU Standard
AS-09UR1S
9K BTU Basic