This document is an installer's manual for the 16 Series Mini-Split Inverter System, which uses R-410A refrigerant. It covers models with capacities ranging from 9,000 Btu/h to 24,000 Btu/h.
Function Description
The device is a split-system air conditioner or heat pump designed for residential applications, providing comfortable and energy-efficient indoor environments. It consists of an indoor unit and an outdoor unit, connected by refrigerant piping and electrical wiring. The system operates using R-410A refrigerant.
Important Technical Specifications
Models:
- HP Outdoor Units: 4TXK1609A1, 4TXK1612A1, 4TXK1618A1, 4TXK1624A1
- AC Outdoor Units: 4TYK1609A1, 4TYK1612A1, 4TYK1618A1, 4TYK1624A1
- HP Indoor Units: 4MXW1609A1, 4MXW1612A1, 4MXW1618A1, 4MXW1624A1
- AC Indoor Units: 4MYW1609A1, 4MYW1612A1, 4MYW1618A1, 4MYW1624A1
Refrigerant (R-410A):
- Operates at 50 to 70% higher pressures than R-22.
- Requires R-410A approved service equipment.
- Refrigerant cylinders are "pink" and may contain a "dip" tube for liquid charging.
- Uses POE (Polyolester) or PVE (Polyvinyl Ether) oil.
- Systems utilize strainers before and after the expansion device in the outdoor unit.
Connection Pipe Requirements:
- Standard Length: 25 ft (7.6 m) for all models.
- Max Length: 100 ft (30 m) for 9K/12K models, 130 ft (40 m) for 18K/24K models.
- Min Length: 10 ft (3 m) for all models.
- Max Height: 65 ft (20 m) for all models.
- Liquid Pipe Outer Diameter: Φ 1/4" (6.35 mm) for all models.
- Gas Pipe Outer Diameter:
- Φ 3/8" (9.52 mm) for 9K/12K models.
- Φ 1/2" (12.7 mm) for 18K models.
- Φ 5/8" (15.875 mm) for 24K models.
- Pipe Wall Thickness: 0.02-0.04 in (0.5-1.0 mm), bearing pressure 435 PSI (3.0 MPa).
- Compressor Oil: DAPHNE FVC50K (PVE Oil) for 9K/12K models, RB68EP (POE Oil) for 18K/24K models.
- Additional Refrigerant Charge: 0.2 oz/ft for 9K/12K/18K models, 0.5 oz/ft for 24K models beyond standard length.
Operating Ranges:
- Cooling Only Outdoor Temperature: 0 - 115°F (-18.0 - 46.1°C)
- Heat Pump Outdoor Temperature: -4.0 - 75°F (-20.0 - 24°C)
Electrical Requirements:
- Power Supply: 208/230V, 60Hz, 1phase for all models.
- Wiring: At least 14 AWG, 600 volt rated, stranded, four conductor wire.
- Max Wiring Length: 230 ft (70 m).
- Wired Controller Communication Distance: Up to 65 ft (19.8 m), standard 25 ft (7.6 m).
- Dedicated power circuit and breaker required for each unit.
Clearance Requirements (Indoor Unit):
- To Ceiling: 6 in. or more
- To Wall (Sides): 6 in. or more
- To Wall (Left/Right): 18 in. or more (air outlet side)
- To Floor: 66 in. or more
- Max Recommended Height (Floor to bottom of indoor unit): 11.5 ft (3.5 m)
Clearance Requirements (Outdoor Unit):
- To Wall (Front): >20 in. (508 mm)
- To Wall (Sides): >12 in. (305 mm)
- To Wall (Rear): >79 in. (2000 mm)
- To Obstruction (Top): >20 in. (508 mm)
- To Obstruction (Sides): >12 in. (305 mm)
- To Obstruction (Rear): >79 in. (2000 mm)
- Air Inlet Side: >12 in. or more
- Air Outlet Side: >79 in. or more
- Space to Wall (Sides): >20 in. or more
- Minimum Clearance from Ground/Base: 1 1/4 inch (31.8 mm) for drain pipe installation.
Unit Dimensions (W x H x D):
- Indoor Unit 09K: 31 1/8 x 10 5/8 x 7 7/8 inch
- Indoor Unit 12K: 33 1/4 x 11 3/8 x 8 1/4 inch
- Indoor Unit 18K: 38 1/4 x 11 13/16 x 8 7/8 inch
- Indoor Unit 24K: 42 1/2 x 12 13/16 x 9 11/16 inch
- Outdoor Unit 9K-12K: 28 x 21 1/4 x 11 1/4 inch (top view WxH, side view HxD)
- Outdoor Unit 18K-24K: 38 x 27 9/16 x 14 5/16 inch (top view WxH, side view HxD)
Usage Features
Installation:
- Professional Installation: Installation must be performed by a qualified HVAC professional.
- Mounting: Indoor unit requires a flat, adequately supported wall. Outdoor unit must be on a level surface or supports, secured with expansion screws.
- Piping: Refrigerant pipes must be insulated, flared correctly using R410A flaring tools, and purged with nitrogen during brazing to prevent contamination and damage. Oil traps may be required for vertical pipe runs (33 ft/10m for outdoor unit lower than indoor, 20 ft/6m for outdoor unit higher than indoor).
- Drainage: Condensate drain pipe must be sloped downward to prevent flooding. Outdoor unit includes a drain pipe connector.
- Wiring: Electrical work must comply with NEC and local codes. Dedicated power circuits are required. Grounding is essential to prevent electrical shock and fire. Field wiring should be securely clamped and protected.
- Controllers: Can be operated by a remote controller (sold separately) or a wired controller (sold separately).
Operation:
- Test Operation: After installation, perform a test run, cycling through AUTO, COOL, DRY, FAN, and HEAT (for heat pump models) modes.
- Auxiliary Operation: In case of remote controller loss/damage, an auxiliary button on the indoor unit allows operation in auto mode (77°F for cooling, 68°F for heating) without temperature adjustment.
Maintenance Features
General Maintenance:
- Regular checks and maintenance by professional personnel are recommended to prolong unit lifespan.
Outdoor Heat Exchanger:
- Check and clean every two months.
- Use a vacuum cleaner with a nylon brush to remove dust and debris.
- Blow away dust with compressed air.
- DO NOT use water to wash the heat exchanger.
Drain Pipe:
- Regularly check for clogs to ensure proper condensate drainage and prevent water damage.
Check Before Seasonal Use:
- Ensure indoor and outdoor unit inlets/outlets are not clogged.
- Verify power and communication cables are securely attached and undamaged.
- Replace wireless remote controller batteries.
- Clean and securely replace the filter screen.
- If shut down for long periods, open the main power switch 8 hours before operation to preheat the compressor.
- Confirm secure installation of indoor and outdoor units.
- Contact dealer/technician for any abnormalities.
Maintenance After Seasonal Use:
- Cut off main power supply.
- Clean indoor unit filters.
- Clean dust and debris from indoor and outdoor units.
- Apply anti-rust paint to rusted areas.
Indoor Unit Maintenance:
- Surface Cleaning: Clean outer surface with a dry or damp cloth. Use mild detergent for residue; wipe dry. DO NOT use chemical solvents or flammable liquids.
- Filter Cleaning: Clean a minimum of every three months, more often in dusty/smoky areas.
- Open front panel, remove screw on wiring cover, remove cover.
- Remove filter by grasping edges and pulling downward.
- Clean filter with vacuum or rinse under cool, clear water.
- For very dirty filters, use warm water (below 115°F/45°C) and mild detergent. Rinse thoroughly and air dry.
- DO NOT dry filter in direct sunlight or with fire/hair dryer to avoid warping or fire hazard.
- Reinstall filter and close front panel.
- Safety Note: After removing the filter, DO NOT touch evaporator fins to avoid injury.
Parts Replacement:
- Purchase parts from an installing or servicing center or dealer.
After-Sales Service:
- Contact local installing/servicing dealer for problems or service.
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