Description
Overview
This integrated Goodman split-system pairs a GLXS4BA3610-class outdoor condensing section with a GD9S800804BX 80% AFUE gas furnace and a CHPTA3630B3 horizontal evaporator coil. System capacity is built around a 36,000 BTU/h cooling platform with a single-stage compressor architecture and an R-32 refrigerant circuit. The evaporator is a factory-cased horizontal coil with an internal TXV to stabilize superheat and support both cooling and heat pump refrigerant control where applicable. On the heating side, the furnace delivers 80,000 BTU/h input through a tubular heat exchanger and drives distribution using a multi-speed ECM blower platform. Refrigerant and airflow components are engineered to work as one circuit, with the coil providing the indoor heat-transfer surface and the condenser rejecting heat outdoors. The result is a matched air-delivery system intended for ducted applications requiring dependable cooling plus gas heat in a single air-handler path.
Performance
Cooling performance is anchored by a scroll compressor and a dedicated condenser fan section designed for stable single-stage operation. With nominal 36,000 BTU/h capacity, the outdoor section provides consistent latent and sensible removal when paired to the correctly sized indoor coil. The CHPTA coil uses an internal TXV, which helps maintain refrigerant control across changing load and airflow conditions to protect coil saturation and capacity delivery. Air movement is provided by the furnace’s ECM-driven blower assembly, supporting up to 1,600 CFM class airflow depending on configuration and external static pressure. That airflow capability allows the system to be applied with common duct designs for 3-ton class cooling while maintaining coil temperature stability and heat-exchanger temperature rise. Together, compressor staging, TXV metering, and controlled airflow provide a predictable capacity profile that simplifies equipment matching in residential and light commercial layouts.
Smart Features
This configuration is designed around conventional 24V control architecture, allowing the outdoor condensing section and indoor furnace to stage and cycle as a coordinated system. Blower control logic in the furnace can be set to support cooling airflow targets, continuous fan operation, and heating airflow profiles to align with duct requirements. Because the indoor coil is TXV-metered, the refrigerant circuit maintains control under varying indoor load, which supports stable thermostat-driven cycling and recovery. The system architecture also supports multi-zone ducted designs when paired with appropriately engineered zoning controls and dampers, with the ECM blower helping manage pressure changes. Thermostat selection can be aligned to application needs, including standard programmable options and controls that manage fan strategies for comfort and humidity management. Overall, the controls framework focuses on predictable air delivery and refrigerant stability rather than proprietary communication dependencies.
Comfort & Noise
Indoor comfort is delivered through ducted air distribution, with the evaporator coil acting as the primary heat-transfer surface for cooling and dehumidification. The outdoor section is specified at 67 dBA sound level for the 36,000 BTU/h class model, supporting placement strategies that balance service access with acoustic goals. On the air side, the furnace’s ECM blower supports steady airflow, helping maintain coil temperature control that impacts supply-air stability and humidity performance. Single-stage compression provides consistent full-capacity cooling cycles, while the TXV helps avoid overfeeding and improves control during load transitions. In heating mode, the single-stage gas furnace provides a straightforward temperature rise profile and a ducted comfort output suitable for whole-home distribution. System comfort outcomes depend on duct design and commissioning, but the component set is built to support stable airflow, controlled refrigerant metering, and repeatable cycle behavior.
Use Case Fit
This three-component system is well suited for ducted residential applications that need a 3-ton class cooling platform combined with gas heating for seasonal operation. The horizontal CHPTA coil supports installations where the indoor coil is mounted in horizontal airflow, such as attic or crawlspace ducted layouts, while the furnace remains multi-position capable. The 17.50-inch cabinet width class enables pairing with common plenums and transitions, with airflow capacity sized to typical 3-ton duct systems. Applications include single-family homes, townhomes, and multi-family units where a centralized ducted system is preferred over zone-by-room terminal equipment. In regions with significant heating seasons, the 80% AFUE gas furnace provides a familiar service profile and combustion-based heat output that is independent of outdoor temperature. For projects requiring zoning, the system can be engineered with dampers and controls, leveraging ECM airflow capability to support pressure management when zones open and close.
Value & Reliability
From a service standpoint, the system uses established component roles: the condenser manages heat rejection, the coil manages indoor heat exchange, and the furnace provides airflow and gas heat. The TXV-equipped coil improves refrigerant control, which can reduce sensitivity to minor load shifts and helps protect compressor operation by maintaining stable metering. The furnace’s aluminized-steel tubular heat exchanger construction and multi-speed ECM blower support durable operation with controllable airflow profiles for both heating and cooling. The coil is an all-aluminum evaporator design optimized for R-32 systems and includes a factory-installed sensor designed for the coil’s service life. Cabinet construction and cased coil packaging support duct connection integrity and access for service in horizontal applications. Overall, the architecture emphasizes straightforward diagnostics, stable refrigerant metering, and repeatable airflow delivery that supports long-term system performance when installed and commissioned correctly.
Summary Wrap-Up
With one outdoor condensing unit, one 80% AFUE gas furnace, and one TXV-metered horizontal coil, this package functions as a single matched ducted HVAC system. It is built to deliver 36,000 BTU/h class cooling through an R-32 refrigerant circuit while providing combustion-based heating through a single-stage furnace platform. Air delivery is centralized through the furnace blower, allowing the coil to act as the indoor thermal exchange hub for both capacity and dehumidification control. The use of TXV metering and ECM airflow capability supports stable operation across common duct conditions and provides a strong foundation for zoning designs when engineered appropriately. For contractors and buyers who value a clear division of component roles and a predictable service profile, this configuration provides a practical balance of cooling capacity, gas heat output, and controlled air delivery. Specify this system where ducted distribution, horizontal coil placement, and single-stage compressor operation align with the building’s load and control strategy.
Key Features
- System architecture: Combines a 36,000 BTU/h class outdoor condenser, an 80,000 BTU/h input 80% AFUE gas furnace, and a TXV-metered horizontal evaporator coil into one ducted refrigerant-and-airflow system.
- R-32 refrigerant circuit: Uses an R-32 optimized condenser-and-coil pairing to support modern refrigerant handling with controlled indoor heat exchange.
- Internal TXV metering: Regulates refrigerant feed at the evaporator to maintain stable superheat across changing load and airflow conditions for consistent coil performance.
- ECM blower airflow control: Provides multi-speed ECM-driven air delivery with up to 1,600 CFM class capability to support 3-ton duct airflow targets and zoning pressure changes.
- Single-stage compression: Delivers full-capacity cooling cycles with a straightforward staging strategy that pairs well with conventional thermostat control.
- Horizontal coil configuration: Supports installations requiring horizontal airflow coil placement while maintaining cased construction for duct connection integrity and service access.
White Paper
- Goodman GLXS4B Spec Sheet
- Goodman GLXS Split AC Installation Manual
- Goodman GR9S80/GD9S80 Spec Sheet
- Goodman GR9S80/GD9S80 Installation Manual
- Goodman Evaporator Coil Spec Sheet
- Goodman CHPTA Coil Installation Manual
- Goodman GLXS4BA Repair Parts List – Rev AA/AB (RP-G4341A)
- Goodman GD9S Repair Parts List (RP-G2352)
- Goodman CHPTA Repair Parts List (RP-4362)
