This document describes the Haier MINI 4-way cassette type indoor unit, detailing its features, specifications, installation, and maintenance.
Function Description
The Haier MINI 4-way cassette type indoor unit is designed for cooling and heating applications in various indoor environments. It features a compact design, a new panel, and a low sound level, making it suitable for spaces where aesthetics and quiet operation are important. The unit is capable of operating in both cooling and heating modes, with specifications provided for different models to accommodate varying capacity requirements. It can be controlled by a wired controller, and multiple indoor units can be grouped and controlled by a single wired controller. The unit also includes features like a built-in drainage pump and a floater switch for efficient condensate management.
Important Technical Specifications
Models Covered:
- AB052MCERA(M)
- AB072MCERA(M)
- AB092MCERA(M)
- AB122MCERA(M)
- AB162MCERA(M)
- AB182MCERA(M)
Power Supply:
- Voltage: 220-240V, 1 Phase, 50/60Hz for all models.
- Voltage Range: 198-242V.
- Maximum Allowable Voltage Unbalance: 2%.
Cooling Capacity:
- AB052MCERA(M): 5.1 kBtu/h (1.5 kW)
- AB072MCERA(M): 7.5 kBtu/h (2.2 kW)
- AB092MCERA(M): 9.5 kBtu/h (2.8 kW)
- AB122MCERA(M): 12.3 kBtu/h (3.6 kW)
- AB162MCERA(M): 15.3 kBtu/h (4.5 kW)
- AB182MCERA(M): 19.1 kBtu/h (5.6 kW)
Heating Capacity:
- AB052MCERA(M): 5.8 kBtu/h (1.7 kW)
- AB072MCERA(M): 8.5 kBtu/h (2.5 kW)
- AB092MCERA(M): 10.9 kBtu/h (3.2 kW)
- AB122MCERA(M): 13.6 kBtu/h (4 kW)
- AB162MCERA(M): 17.1 kBtu/h (5 kW)
- AB182MCERA(M): 21.5 kBtu/h (6.3 kW)
Power Input (Cooling/Heating):
- AB052/072/092MCERA(M): 17 W (Cooling/Heating)
- AB122MCERA(M): 18 W (Cooling/Heating)
- AB162MCERA(M): 26 W (Cooling/Heating)
- AB182MCERA(M): 35 W (Cooling/Heating)
Operating Current: 0.2 A for all models.
Indoor Motor:
- Brand: Broad Ocean
- Model: ZW465C03
- Type: DC
- Insulation Class: B
- IP Class: IP40
- Power Input: 35 W
- Power Output: 26 W
- Speed (High/Middle/Low):
- AB052MCERA(M): 500/430/380 rpm
- AB072/092MCERA(M): 520/450/400 rpm
- AB122/162/182MCERA(M): 650/520/450 rpm
Indoor Fan:
- Brand: Haier
- Type: Centrifugal
- Quantity: 1
Indoor Coil:
- Number of rows:
- AB052/072/092MCERA(M): 1
- AB122/162/182MCERA(M): 2
- Tube pitch(a)x row pitch(b): 21*13.3 mm
- Fin spacing: 1.35 mm
- Fin type: Hydrophilic aluminum
- Tube outside dia. and type: Φ7 mm
- Coil length x height x width:
- AB052/072/092MCERA(M): 1330*147*13.3 mm
- AB122/162/182MCERA(M): 1330*147*26.6 mm
- Number of circuits:
- AB052/072/092MCERA(M): 5
- AB122/162/182MCERA(M): 10
Cabinet:
- Coating Type: Galvanized
- Salt Spray Test Duration: 100 Hour
- Control Box IP Class: IP40
Construction:
- Sheet Metal Thickness: 0.8 mm
- Drain Pan Material: PS
- Drain Pan Insulation: 20 mm
- Drain Pump Option: Standard 1200mm
- Branch Outlet Option: No
- Indoor Wall Material: Hot zinc plate, PP
- Indoor Wall Thickness: 0.8 mm
- Indoor Wall Type: Single Skin
- Air Filter Mesh: 100
- Pressure Drop: 5 Pa
Piping Dimension:
- Liquid pipe: 6.35 mm for all models.
- Gas pipe:
- AB052/072/092MCERA(M): 9.52 mm
- AB122/162/182MCERA(M): 12.7 mm
- Drain hose: Φ32 mm
Panel:
- Model: PB-620KB
- Dimension (W*H*D): 620/620/60 mm
- Packing (W*H*D): 660/660/115 mm
- Net weight: 2.8 kg
- Gross weight: 4.5 kg
Fresh Air Dimension: Φ100 mm
Sound Pressure Level (H/M/L):
- AB052/072MCERA(M): 32/30/29 dB(A)
- AB092/122/162MCERA(M): 33/30/29 dB(A)
- AB182MCERA(M): 34/32/30 dB(A)
Sound Power Level (H/M/L):
- AB052/072/092MCERA(M): 46/44/43 dB(A)
- AB122/162MCERA(M): 47/44/43 dB(A)
- AB182MCERA(M): 48/46/44 dB(A)
Standard Static Pressure: 0 Pa
Indoor Air Flow (H/M/L):
- AB052MCERA(M): 650/540/430 m³/h
- AB072/092MCERA(M): 700/590/480 m³/h
- AB122/162/182MCERA(M): 700/590/480 m³/h
Unit Dimension (W*H*D): 570*570*260 mm
Packing Dimension (W*H*D): 718*680*380 mm
Net Weight:
- AB052/072/092MCERA(M): 16 kg
- AB122/162/182MCERA(M): 19 kg
Gross Weight:
- AB052/072/092MCERA(M): 19 kg
- AB122/162/182MCERA(M): 22 kg
Refrigerant: R410A (filling amount depends on outdoor unit and installation instructions).
Electrical Characteristics (MCA, MFA, FLA):
- MCA (Min. Circuit Amps): 0.325 A for all models.
- MFA (Max. Fuse Amps of Circuit Breaker): 1.04 A for all models.
- FLA (Full Load Amps): 0.26 A for all models.
- Power Input (W) Cooling/Heating:
- AB052/072/092MCERA(M): 17 W
- AB122MCERA(M): 18 W
- AB162MCERA(M): 26 W
- AB182MCERA(M): 35 W
Piping Materials & Heat Insulating Materials:
- Piping Material: Hard PVC tube VP31.5mm (inner bore)
- Heat Insulating Material: Vesicant polythene thickness: over 7mm
Wiring Dimensions:
- Power Line:
- <7A: 2.5mm² (20m length, 10A breaker)
- ≥7A and <11A: 4mm² (20m length, 16A breaker)
- ≥11A and <16A: 6mm² (25m length, 20A breaker)
- ≥16A and <22A: 8mm² (30m length, 32A breaker)
- ≥22A and <27A: 10mm² (40m length, 32A breaker)
- Signal Line (Outdoor-Indoor): 2 cores×(0.75-2.0)mm² shielded line.
- Signal Line (Wired Controller): 0.75mm²×3 core shielded line (max 250m length).
Usage Features
Compact Design: The unit boasts a compact design, making it suitable for various indoor spaces without being obtrusive.
New Panel Design: Features a 620*620mm panel, contributing to its modern aesthetic.
Low Sound Level: Designed for quiet operation, enhancing comfort in the indoor environment.
Air Velocity and Temperature Distribution: Detailed diagrams illustrate the air velocity and temperature distribution patterns for both cooling (blowy angle 40°) and heating (blowy angle 70°) modes, ensuring effective air circulation and comfort.
Wired Controller: The unit can be controlled via a wired controller, with options for controlling single units, multiple units in a group, or master/slave configurations.
3-Minute Protection: To protect the compressor, it is actuated with at least a 3-minute delay after stopping.
Defrosting During Heating: The outdoor unit automatically performs defrosting when frost appears, with the indoor fan running at a low speed or stopping, and the outdoor unit fan stopping.
Stopping Fan Rotation: When the unit stops operating, the fan actuates for 2-8 minutes every 30-60 minutes to protect the unit while other indoor units are operating.
Fresh Air Intake: Equipped with a Φ100mm fresh air inlet accessory for direct installation.
Drain Pump: Includes a standard 1200mm drain pump option for efficient condensate removal. The drainpipe can be lifted up to 360mm.
Maintenance Features
Daily Maintenance:
- Cleaning Air Cleaner & Air Inlet Grid: Regular cleaning is recommended, especially in dusty environments (every two weeks).
- Removal of Air Inlet Grid: The air inlet grid can be easily removed by pressing down two locks, lifting it 45 degrees, and then detaching it.
- Dismantling Gauze: The gauze can be removed by pressing the outer frame of the air inlet grid and pulling out the base angle.
- Cleaning Air Cleaner: Dust can be removed with a dust collector or water. For heavy dust, a soft-hair brush and mild detergent can be used, followed by rinsing with water and drying in a cool place.
- Cleaning Air Outlet Port and Shell: Wipe with a soft dry cloth. Water or neutral dry cleanser can be used for stubborn dust.
- Cleaning Wind Deflector: The wind deflector can be dismantled for cleaning, but care should be taken not to wipe it forcibly to avoid floss falling off.
Maintenance Before and After Operating Season:
- Before Season:
- Check for blockages in inlet/outlet ports of indoor and outdoor units.
- Verify the ground line and wiring are in proper condition.
- Clean the air cleaner and shell.
- Switch on the power after cleaning.
- After Season:
- Perform blowing operation for half a day on sunny days to dry the inside of the machine.
- Switch off the electrical power to save electricity.
- Clean the air cleaner and shell, ensuring they are mounted after cleaning.
Safety Precautions for Maintenance:
- Repair should only be performed by professional personnel.
- All power supplies must be switched off before touching connection lines or cleaning the air conditioner to prevent electric shock or injury.
- Use a stable platform when cleaning the air cleaner. Do not flush the air conditioner with water.
- Do not clean with hot water over 50°C to avoid fading or distortion.
- Do not dry the air cleaner on fire, as it may cause fire.
Fault Checkup:
The manual provides a comprehensive list of symptoms and their potential reasons, such as water flow sound, cracking sound, terrible smell in outlet air, flashing operating indicator, and awaiting indication. It also outlines steps to check for issues like failure to work or bad cooling/heating effects, including checking power supply, fuses, breakers, and filter screens. Users are advised to stop operation and contact after-service personnel immediately if abnormal conditions persist.