
The Story
The Goodman GLZSM4 is a 2.5 Ton split system heat pump delivering up to 15.2 SEER2 / 14.3 SEER2 / 7.8 HSPF2 efficiency with SmartShift technology for quiet, reliable defrost. Features a high-efficiency compressor, enhanced aluminum fin coils, and single-speed PSC condenser fan motor. Ships fully charged for 15' of tubing length. Built in a heavy-gauge galvanized steel cabinet. AHRI Certified and ETL Listed.
Features- High-efficiency compressor
- SmartShift® technology to ensure quiet reliable defrost
- Enhanced aluminum fin coil- 5 mm diameter on 1.5T-3.5 Ton
- Enhanced aluminum fin coil with 7mm diameter copper tubes in 4.0- to 5.0-ton
- Single-speed PSC condenser fan motor
- Factory-installed bi-flow liquid-line filter drier
- Factory-installed suction-line accumulator
- Factory-installed compressor crankcase heater
- Factory-installed high-capacity muffler
- High- and low-pressure switches
- Service valves with sweat connections and easy access to gauge ports
- Fully charged for 15’ of tubing length
- Fully enclosed contractor with lug connection
- Ground lug connection
- Capacitors with extended life
- AHRI Certified
- ETL Listed
- Removable grille-style top design compliant with UL 60335-2-40
- Steel louver coil guard
- Heavy-gauge galvanized-steel cabinet
- Attractive Architectural Gray powder-paint finish with 500-hour salt-spray approval
- Top and side maintenance access
- When properly anchored, meets the 2023 Florida Building Code unit integrity requirements for hurricane-type winds (Anchor bracket kits available).
The Goodman ACST Air Handler provides reliable 2.5 Ton capacity with a multi-speed ECM motor for efficient, quiet operation. Features a factory-installed TXV, all-aluminum evaporator coil, and electric heat options from 5-10 kW for year-round comfort. Built with durable galvanized-steel construction and optimized for R-32 refrigerant with integrated leak detection sensor. AHRI Certified and ETL Listed.
Features- Factory installed TXV for heat pump and cooling-only applications
- All-Aluminum tube/aluminum fin coil
- Direct-drive, resilient-mount, multi-speed motor
- Sequence-controlled and rust-resistant nickel chromium heating elements of 5, 6, 8 and 10 kW
- High-efficiency evaporator coil
- Quiet operation
- AHRI Certified
- Suitable for both front and bottom return
- Factory installed casing
- UL 2-40 cerified
- 10. ETL Listed
- 1Suitable for free-return installation (non-ducted return air)
- 1Galvanized-steel construction
- 1Factory-installed pull-type disconnect
- 1Easy service access
- 1Optimized for use with R-32 refrigerant with factory installed leak detection sensor for A2L mitigation.
- Primary/secondary drain connection in a high-temperature plastic drain pan
- Suitable for free-return installation (non-ducted return air)
- Galvanized-steel construction
- Factory-installed pull-type disconnect
- Easy service access
- Suitable for both front and bottom return
- Factory installed casing

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.
Description
The Goodman GLZSM4 is a 2.5 Ton split system heat pump delivering up to 15.2 SEER2 / 14.3 SEER2 / 7.8 HSPF2 efficiency with SmartShift technology for quiet, reliable defrost. Features a high-efficiency compressor, enhanced aluminum fin coils, and single-speed PSC condenser fan motor. Ships fully charged for 15' of tubing length. Built in a heavy-gauge galvanized steel cabinet. AHRI Certified and ETL Listed.
Features- High-efficiency compressor
- SmartShift® technology to ensure quiet reliable defrost
- Enhanced aluminum fin coil- 5 mm diameter on 1.5T-3.5 Ton
- Enhanced aluminum fin coil with 7mm diameter copper tubes in 4.0- to 5.0-ton
- Single-speed PSC condenser fan motor
- Factory-installed bi-flow liquid-line filter drier
- Factory-installed suction-line accumulator
- Factory-installed compressor crankcase heater
- Factory-installed high-capacity muffler
- High- and low-pressure switches
- Service valves with sweat connections and easy access to gauge ports
- Fully charged for 15’ of tubing length
- Fully enclosed contractor with lug connection
- Ground lug connection
- Capacitors with extended life
- AHRI Certified
- ETL Listed
- Removable grille-style top design compliant with UL 60335-2-40
- Steel louver coil guard
- Heavy-gauge galvanized-steel cabinet
- Attractive Architectural Gray powder-paint finish with 500-hour salt-spray approval
- Top and side maintenance access
- When properly anchored, meets the 2023 Florida Building Code unit integrity requirements for hurricane-type winds (Anchor bracket kits available).
The Goodman ACST Air Handler provides reliable 2.5 Ton capacity with a multi-speed ECM motor for efficient, quiet operation. Features a factory-installed TXV, all-aluminum evaporator coil, and electric heat options from 5-10 kW for year-round comfort. Built with durable galvanized-steel construction and optimized for R-32 refrigerant with integrated leak detection sensor. AHRI Certified and ETL Listed.
Features- Factory installed TXV for heat pump and cooling-only applications
- All-Aluminum tube/aluminum fin coil
- Direct-drive, resilient-mount, multi-speed motor
- Sequence-controlled and rust-resistant nickel chromium heating elements of 5, 6, 8 and 10 kW
- High-efficiency evaporator coil
- Quiet operation
- AHRI Certified
- Suitable for both front and bottom return
- Factory installed casing
- UL 2-40 cerified
- 10. ETL Listed
- 1Suitable for free-return installation (non-ducted return air)
- 1Galvanized-steel construction
- 1Factory-installed pull-type disconnect
- 1Easy service access
- 1Optimized for use with R-32 refrigerant with factory installed leak detection sensor for A2L mitigation.
- Primary/secondary drain connection in a high-temperature plastic drain pan
- Suitable for free-return installation (non-ducted return air)
- Galvanized-steel construction
- Factory-installed pull-type disconnect
- Easy service access
- Suitable for both front and bottom return
- Factory installed casing























