Goodman AMST48CU1300 4 Ton R-32 Multi-Position Air Handler with ECM Blower & TXV
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Is installation available in my area?
Installation is only available within our zip code coverage area. Simply type in your zip code to find out if installation is available in your area. If we do not currently offer installation in your area, you may still purchase the product from us, but you are required to have the product(s) installed by a qualified professional.
What's included with installation?
Our HVAC installation packages include all materials and labor needed for a standard equipment replacement "changeout". The technician will also perform a risk-free site inspection if needed, and removal of old HVAC equipment. Any necessary permit fees will incur extra costs. Rooftop installations will incur extra costs for crane rental (Example: rooftop packaged units, outdoor condensing units on roof, etc.). Should your project require any custom work, you will have the opportunity to review the updated cost and can choose to cancel your installation with no penalty.
How quickly will my equipment be installed?
Shortly after placing your order, you will receive a call, email, or text message from our staff to schedule a pre-inspection (if needed) and schedule an installation date.
The pre-installation inspection typically takes place within 1-3 business days of your order being placed. The installation then typically takes place 1-3 business days after that. We will schedule both the pre-inspection (if needed) and installation with you at a time that works best, usually in the morning, during regular working hours on a weekday (Monday-Friday). On the day of your installation, your assigned technician(s) will arrive with all the equipment and materials needed to complete the job.
Will my equipment be covered under warranty?
Our installation packages meet all manufacturer requirements for full warranty coverage and include equipment registration.
Who installs my equipment?
EZ Plenum installation jobs are performed by our network of qualified professionals. Our installers meet our high standards of quality, professionalism, and reliability. In addition to that, each job is backed by a 1-Year Workmanship guarantee. EZPlenum.com is not responsible for labor costs to diagnose, repair, install, or service product(s); it is your responsibility to deal directly with the qualified professional who installed your equipment.
Is installation available in my area?
Installation is only available within our zip code coverage area. Simply type in your zip code to find out if installation is available in your area. If we do not currently offer installation in your area, you may still purchase the product from us, but you are required to have the product(s) installed by a qualified professional.
What's included with installation?
Our HVAC installation packages include all materials and labor needed for a standard equipment replacement "changeout". The technician will also perform a risk-free site inspection if needed, and removal of old HVAC equipment. Any necessary permit fees will incur extra costs. Rooftop installations will incur extra costs for crane rental (Example: rooftop packaged units, outdoor condensing units on roof, etc.). Should your project require any custom work, you will have the opportunity to review the updated cost and can choose to cancel your installation with no penalty.
How quickly will my equipment be installed?
Shortly after placing your order, you will receive a call, email, or text message from our staff to schedule a pre-inspection (if needed) and schedule an installation date.
The pre-installation inspection typically takes place within 1-3 business days of your order being placed. The installation then typically takes place 1-3 business days after that. We will schedule both the pre-inspection (if needed) and installation with you at a time that works best, usually in the morning, during regular working hours on a weekday (Monday-Friday). On the day of your installation, your assigned technician(s) will arrive with all the equipment and materials needed to complete the job.
Will my equipment be covered under warranty?
Our installation packages meet all manufacturer requirements for full warranty coverage and include equipment registration.
Who installs my equipment?
EZ Plenum installation jobs are performed by our network of qualified professionals. Our installers meet our high standards of quality, professionalism, and reliability. In addition to that, each job is backed by a 1-Year Workmanship guarantee. EZPlenum.com is not responsible for labor costs to diagnose, repair, install, or service product(s); it is your responsibility to deal directly with the qualified professional who installed your equipment.
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Required Accessories:
Goodman GLZS4BA4810 4 Ton R-32 Heat Pump Condenser | 14.3 SEER2
Installation Accessories:
Goodman HKTSD05X1 5kW Electric Heat Kit with Circuit Breaker for R-32 Air Handlers
Images are for illustration purposes, products are subject to manufacturer revision.
Goodman AMST48CU1300 – 4 Ton R-32 Multi-Position Air Handler
The Goodman AMST48CU1300 4 Ton Air Handler delivers dependable indoor airflow and efficient operation for compatible R-32 air conditioning and heat pump systems. Equipped with a 9-speed ECM blower motor, factory-installed thermostatic expansion valve (TXV), and all-aluminum evaporator coil, this multi-position air handler is designed for reliable residential heating and cooling performance.
Designed for the 48,000 BTU/h nominal capacity class, the AMST48CU1300 features a 21-inch C-width cabinet and a large 10-inch by 10-inch blower wheel, offering flexible airflow configuration for properly matched HVAC systems.
Key Features & Benefits
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4 Ton Nominal Capacity: Designed for compatible 48,000 BTU/h heating and cooling systems.
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R-32 Refrigerant Compatibility: Engineered for approved R-32 split-system air conditioning and heat pump applications.
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9-Speed ECM Blower Motor: Provides selectable airflow settings for dependable indoor air distribution.
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3/4 HP Direct-Drive Motor: Designed for efficient operation and adjustable airflow performance.
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Factory-Installed TXV: Regulates refrigerant flow for compatible cooling and heat pump applications.
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All-Aluminum Evaporator Coil: Supports effective heat transfer and reliable performance.
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Multi-Position Installation: Accommodates manufacturer-approved horizontal and vertical installation configurations.
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Factory-Installed Refrigerant Detection Sensor: Supports applicable A2L refrigerant safety requirements.
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SmartFrame™ Cabinet Construction: Rigid galvanized-steel construction for durability and installation flexibility.
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C-Width Cabinet: Approximately 21-1/8 inches wide and 21 inches deep.
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10" × 10" Blower Wheel: Supports configurable airflow for properly sized HVAC systems.
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Thermoplastic Drain Pan: Features secondary condensate drain connections.
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Tool-Free Filter Access: Simplifies routine air filter maintenance.
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Optional Electric Heat Kits: Compatible Goodman auxiliary heating kits are available separately.
Efficient Airflow with 9-Speed ECM Technology
The Goodman AMST48CU1300 features a direct-drive ECM blower motor with nine selectable airflow settings, allowing qualified HVAC technicians to configure indoor airflow according to system requirements.
Its large 10-inch by 10-inch blower wheel is designed to distribute conditioned air efficiently when connected to properly sized ductwork and compatible outdoor equipment.
Combined with the factory-installed TXV and all-aluminum evaporator coil, the air handler supports efficient refrigerant system operation and dependable indoor comfort.
Flexible Multi-Position Installation
The AMST48CU1300 features a 21-1/8-inch-wide cabinet, 21-inch depth, and 58-inch height.
Its multi-position design accommodates approved vertical and horizontal installation configurations, making it suitable for mechanical closets, attics, and residential HVAC replacement projects.
Its rigid SmartFrame cabinet, accessible service components, and integrated condensate drainage provisions help simplify professional installation and maintenance.
Compatible with Goodman R-32 Heat Pumps & Air Conditioners
The Goodman AMST48CU1300 is designed for qualifying Goodman R-32 air conditioning and heat pump systems, including compatible GLXS4B and GLZS4B series outdoor units.
Actual heating capacity, cooling output, SEER2 efficiency, and HSPF2 performance depend on the complete AHRI-certified equipment combination.
Important Installation Information
Indoor air handler only. The outdoor condenser, thermostat, refrigerant line set, auxiliary electric heat kit, and other installation accessories are sold separately unless otherwise specified.
The AMST48CU1300 requires compatible R-32 outdoor equipment. Installation must follow Goodman manufacturer specifications, refrigerant safety requirements, and applicable mechanical and electrical codes.
Order the Goodman AMST48CU1300 from EZ Plenum for your next HVAC replacement, installation, or system upgrade.
Frequently Asked Questions
What is the Goodman AMST48CU1300 air handler?
The Goodman AMST48CU1300 is a 4 ton multi-position air handler designed for compatible R-32 air conditioning and heat pump systems. It features a 9-speed ECM blower motor, factory-installed TXV, and all-aluminum evaporator coil.
What refrigerant does the Goodman AMST48CU1300 use?
The Goodman AMST48CU1300 is designed for R-32 refrigerant and must be paired with approved R-32 outdoor HVAC equipment. It is not intended for use with incompatible R-410A or R-454B systems.
What is the cooling capacity of the Goodman AMST48CU1300?
The Goodman AMST48CU1300 belongs to the 4 ton capacity class, corresponding to a nominal 48,000 BTU per hour. Actual cooling performance depends on the matched outdoor condenser, airflow configuration, and operating conditions.
Does the Goodman AMST48CU1300 include a TXV?
Yes. The Goodman AMST48CU1300 includes a factory-installed thermostatic expansion valve (TXV) designed to regulate refrigerant flow through the evaporator coil for compatible cooling and heat pump applications.
What type of blower motor does the Goodman AMST48CU1300 use?
The Goodman AMST48CU1300 features a direct-drive, 9-speed ECM blower motor rated at 3/4 horsepower. Selectable airflow settings allow qualified HVAC technicians to configure blower performance according to system requirements.
What is the airflow capacity of the Goodman AMST48CU1300?
Goodman publishes blower airflow values up to approximately 1,820 CFM at 0.1 inch external static pressure under specified test conditions. Actual airflow depends on blower speed selection, static pressure, ductwork, and installation configuration.
Can the Goodman AMST48CU1300 be installed horizontally or vertically?
Yes. The Goodman AMST48CU1300 supports manufacturer-approved horizontal and vertical installation configurations. Installation requirements and any necessary accessories depend on the selected orientation.
What are the dimensions of the Goodman AMST48CU1300?
The Goodman AMST48CU1300 measures approximately 21-1/8 inches wide, 21 inches deep, and 58 inches high. Its C-width cabinet is designed for residential HVAC installations.
How much does the Goodman AMST48CU1300 weigh?
The Goodman AMST48CU1300 has a manufacturer-listed shipping weight of approximately 153 pounds. Confirm actual packaged shipping dimensions and freight requirements with the supplier.
What size air filter does the Goodman AMST48CU1300 use?
The Goodman AMST48CU1300 can accommodate a nominal 20-by-20-by-1-inch air filter with a compatible internal filter arrangement. Actual filter dimensions and requirements should be verified for the installed filter rack or external return filter grille.
Does the Goodman AMST48CU1300 include a refrigerant detection system?
Yes. The Goodman AMST48CU1300 includes a factory-installed R-32 refrigerant detection sensor and associated safety controls designed to support applicable A2L refrigerant safety requirements.
Does the Goodman AMST48CU1300 include an electric heat kit?
No. Auxiliary electric heat is not included as standard equipment. Compatible Goodman electric heat kits are available separately and must be selected according to manufacturer specifications.
Is the Goodman AMST48CU1300 compatible with Goodman heat pumps?
Yes. The Goodman AMST48CU1300 is designed for qualifying Goodman R-32 heat pump systems, including compatible GLZS4B series outdoor condensers. Exact combinations should be verified using manufacturer specifications and AHRI certification.
What are the electrical requirements for the Goodman AMST48CU1300?
The Goodman AMST48CU1300 operates on 208/230V single-phase, 60 Hz electrical power. Without an electric heat kit, the manufacturer lists a minimum circuit ampacity of 7.1 amps and maximum overcurrent protection of 15 amps. Electrical requirements change when auxiliary electric heat is installed.
What refrigerant connections does the Goodman AMST48CU1300 have?
The Goodman AMST48CU1300 has a 3/8-inch liquid connection and a 7/8-inch suction connection. Field refrigerant line sizing must follow Goodman installation instructions and the approved outdoor equipment combination.
What is the difference between the Goodman AMST48CU1300 and AMST42CU1300?
The AMST48CU1300 belongs to the 4 ton capacity class and features a 58-inch-tall cabinet with a 10-by-10-inch blower wheel. The AMST42CU1300 belongs to the 3.5 ton capacity class and features a shorter cabinet with a 10-by-8-inch blower wheel. Both use R-32 refrigerant and C-width cabinets.
What warranty comes with the Goodman AMST48CU1300?
The Goodman AMST48CU1300 may qualify for a 10-year parts limited warranty, subject to manufacturer eligibility, registration requirements, and warranty terms. Coverage may vary by jurisdiction.
Who should install the Goodman AMST48CU1300?
The Goodman AMST48CU1300 should be installed by a qualified HVAC professional following Goodman installation instructions, R-32 refrigerant safety requirements, and applicable mechanical and electrical codes.
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