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What's in this package
Every piece below is included in your system price — matched to optimize efficiency, power and compatibility. Tap a piece to see its full description, specs and manuals.
Piece 1 of 2 — CENTRAL CONDENSER
The Goodman GLXS3B Split System Air Conditioner delivers 13.4 SEER2 efficiency with R-32 refrigerant at 3.5 Ton capacity. Features single-stage cooling and durable powder-painted cabinet with easy service access. Optimized for next-generation R-32 refrigerant with lower GWP. AHRI Certified and ETL Listed.
Features- Energy-Efficienct Compressor
- Fully charged for 15' of tubing length
- Copper tube/ enhanced aluminum fin coil-5mm diameter
- Factory-installed filter drier
- Sweat connection service valves with easy access to gauge ports
- Enclosed contactor with lug connection
- High-pressure switch
- Capacitors with extended life
- AHRI Certified
- ETL Listed
- Removable grille-style top design compliant with UL 60335-2-40
- Venturi for increased velocity of airflow
- Attractive Architectural Gray powder-paint finish with 500-hour salt-spray approval
- Wire fan discharge grille
- Steel louver coil guard
- Top and side maintenance access
- Single-panel access to controls with space provided for field-installed accessories
- When properly anchored, meets the 2023 Florida Building Code unit integrity requirements for hurricane-type winds (Anchor bracket kits available.)
DIMENSIONS & WEIGHT
- Height
- 35.75 in
- Width
- 29 in
- Depth
- 29 in
- Weight
- 180 lb
GENERAL INFORMATION
- Brand
- Goodman
- Series
- GLXS3B
- SKU
- GLXS3BN4210
- Product Category
- Unitary
- Unit Type
- Outdoor
- Manufacturer
- Goodman
- Product Features
- Energy-Efficienct Compressor
- Fully charged for 15' of tubing length
- Copper tube/ enhanced aluminum fin coil-5mm diameter
- Factory-installed filter drier
- Sweat connection service valves with easy access to gauge ports
- Enclosed contactor with lug connection
- High-pressure switch
- Capacitors with extended life
- AHRI Certified
- ETL Listed
CAPACITY & PERFORMANCE
- Tonnage
- 3.5
- Cooling BTU
- 39500 Btu/H
- Cooling Operating Range
- 55 °F to 115 °F
- SEER2
- 13.4
- EER2
- 11.2
COMPRESSOR & MOTORS
- Compressor Type
- Scroll
- Compressor Stages
- Single Stage
NOISE LEVELS
- Decibel Level (dBA)
- 73 dBA
ELECTRICAL REQUIREMENTS
- Voltage/Phase/Hz
- 208/230 V / 1 Ph / 60 Hz
- Max Breaker Size
- 30 A
- Min. Breaker Size
- 19.4 A
REFRIGERANT & PIPING
- Refrigerant
- R-32
- Factory Refrigerant Charge
- 74 oz
- Liquid Line
- 3/8 in
- Suction Line
- 1-1/8 in
- Max Line Set Length
- 200 ft
SAFETY
- ENERGY STAR® Certified
- No
- Proposition 65 Warning
- Yes
WARRANTY
- Warranty
- ALL PARTS - 5 YEARS PARTS
Piece 2 of 2 — CENTRAL AIR HANDLER
The Goodman AMVT multi-position air handler is designed for ducted mini-split applications with variable-speed technology. Features flexible multi-position installation options for versatile applications. Provides quiet, efficient air distribution when paired with Goodman mini-split outdoor units. Ideal for applications requiring traditional ducted airflow with enhanced comfort control.
Features- Internal factory-installed thermal expansion valves for cooling and heat pump applications
- Direct drive, 9-speed ECM blower motor
- Factory installed 7mm AlumaFin7™ Evaporator Coil on 1½ to 3½ Ton models and 3/8 in. Evaporator Coil on 4 to 5 Ton models
- All-aluminum evaporator coil with high-performance coated fin stock
- Coil mounting track for quick repositioning
- Optimized for use with R-32 refrigerant with factory installed leak detection sensor for A2L mitigation.
- Cabinet air leakage less than 2.0% at 1.0 inch H2O when tested in accordance with ASHRAE standard 193
- Cabinet air leakage less than 1.4% at 0.5 inch H2O when tested in accordance with ASHRAE standard 193
- 3 kW – 25 kW electric heater kits
- AHRI certified
- ETL listed
- Rigid SmartFrame cabinet
- Horizontal or vertical configuration capabilities
- 21” depth for easier attic access
- DecaBDE-free thermoplastic drain pan with secondary drain connections
- Screw-less sides and back helps to reduce condensation when installed in humid locations
- Foil-faced insulation covers the internal casing to reduce cabinet condensation
- Galvanized, leather grain-embossed finish
- Glue-less cabinet insulation retention
- Tool-less filter access
DIMENSIONS & WEIGHT
- Height
- 58 in
- Width
- 21-1/8 in
- Depth
- 21 in
- Weight
- 153 lb
GENERAL INFORMATION
- Brand
- Goodman
- Series
- AMST
- SKU
- AMST48CU1300
- Product Category
- Unitary
- Unit Type
- Indoor
- Manufacturer
- Goodman
- Product Features
- Internal factory-installed thermal expansion valves for cooling and heat pump applications
- Direct drive, 9-speed ECM blower motor
- Factory installed 7mm AlumaFin7™ Evaporator Coil on 1½ to 3½ Ton models and 3/8 in. Evaporator Coil on 4 to 5 Ton models
- All-aluminum evaporator coil with high-performance coated fin stock
- Coil mounting track for quick repositioning
- Optimized for use with R-32 refrigerant with factory installed leak detection sensor for A2L mitigation
- Cabinet air leakage less than 2.0% at 1.0 inch H2O when tested in accordance with ASHRAE standard 193
- Cabinet air leakage less than 1.4% at 0.5 inch H2O when tested in accordance with ASHRAE standard 193
- 3 kW – 25 kW electric heater kits
- AHRI certified
- ETL listed
CAPACITY & PERFORMANCE
- Tonnage
- 4.0
ELECTRICAL REQUIREMENTS
- Voltage/Phase/Hz
- 208/230 V / 1 Ph / 60 Hz
- Max Breaker Size
- 15 A
- Min. Breaker Size
- 7.1 A
REFRIGERANT & PIPING
- Refrigerant
- R-32
- Factory Refrigerant Charge
- 0.5 oz
- Liquid Line
- 3/8 in
- Suction Line
- 3/4 in
SAFETY
- Proposition 65 Warning
- Yes
WARRANTY
- Warranty
- ALL PARTS - 5 YEARS PARTS
Authorized Goodman Dealer
Full manufacturer warranty on every Goodman product we sell.
Central Split System FAQs
What is a central HVAC system?
A central HVAC system uses a network of ducts to heat and cool your entire home from a single unit. It typically consists of an outdoor condenser (or heat pump) and an indoor air handler connected by refrigerant lines, distributing conditioned air through vents in every room.
What's the difference between a heat pump system and a traditional A/C system?
A heat pump can both heat and cool your home by reversing its refrigerant cycle, making it a year-round solution without a separate furnace. A traditional central A/C system only cools — you'd pair it with a gas furnace or electric air handler for heating. Heat pumps are generally more energy-efficient in moderate climates.
What size central HVAC system do I need?
Sizing depends on your home's square footage, insulation, climate zone, and ceiling height. As a general rule: 1 ton of cooling covers roughly 400–600 sq ft. A 2,000 sq ft home typically needs a 3–4 ton system. Use our live chat to speak with an HVAC specialist who can help you size correctly.
Can I buy a central HVAC system online and install it myself?
You can purchase central HVAC equipment online and save significantly versus buying through a local contractor. However, installation must be performed by a licensed HVAC technician in most states — the refrigerant handling and electrical work require certification. We recommend buying the equipment here and hiring a local installer separately.
What SEER2 rating should I look for?
SEER2 (Seasonal Energy Efficiency Ratio 2) measures cooling efficiency — higher numbers mean lower energy costs. Federal minimums are 14–15 SEER2 depending on your region. For the best long-term savings, look for systems rated 16 SEER2 or higher. Many of our MRCOOL and Senville systems reach 17–18 SEER2.
Does Home Outlet Direct offer financing for central HVAC purchases?
Yes. Financing is available on qualifying orders, making it easier to invest in a high-efficiency central HVAC system without paying everything upfront. See our financing page for details on terms and eligibility.
Do central HVAC systems from Home Outlet Direct come with a warranty?
All systems come with the manufacturer's warranty. We also offer extended warranty and protection plans for added peace of mind. Brands like MRCOOL and Goodman are backed by industry-leading coverage.
What is a Goodman split system?
A Goodman split system is a central HVAC setup with an outdoor condenser and an indoor air handler or furnace. Together they provide whole-home heating and cooling, offering better efficiency and quieter operation than window units.
What SEER2 ratings do Goodman split systems come in?
Goodman central split systems range from 14.3 SEER2 up to 22.5 SEER2 depending on the model, with higher ratings meaning greater energy savings on monthly utility bills.
Do Goodman split systems come with a warranty?
Yes. Goodman offers industry-leading limited warranties — typically up to 10 years on parts when registered — giving homeowners long-term peace of mind on their investment.
What size Goodman split system do I need?
Sizing depends on your home's square footage. For example, a 1.5-ton system typically covers 600–1,000 sq. ft., while a 4-ton system suits 2,200–2,600 sq. ft. An HVAC professional can perform a Manual J load calculation for accuracy.
What refrigerant do Goodman central split systems use?
Current Goodman split systems use R-32 refrigerant, which has a lower global warming potential (GWP) than older R-410A systems, making them a more eco-friendly choice.
Can I install a Goodman split system myself?
Goodman split systems require professional installation by a licensed HVAC technician, both for safety and to keep the manufacturer's warranty valid.
Does Home Outlet Direct offer free shipping on Goodman split systems?
Yes, Home Outlet Direct offers free shipping on Goodman central split systems along with wholesale pricing, making it one of the most affordable ways to purchase a full HVAC kit online.