3.5 Ton Goodman 13.4 SEER2 R-32 Package Air Conditioner GPCH34231
The Goodman GPCH34231 is the 3.5 ton GPCH3, for homes and businesses whose cooling load runs just past what a 3 ton handles. It delivers 39,000 BTUh of total cooling and 1,315 CFM of airflow from a 3/4 HP, 5-speed ECM blower. It shares the 3 ton's medium chassis, 4-row evaporator coil, compressor rating, and electrical requirements. It is the smallest GPCH3 approved for a 20 kW heat kit, and it runs on factory-charged R-32 at 13.4 SEER2. Explore all 3.5 ton package air conditioners.
Is a 3.5 Ton Package Air Conditioner the Right Size?
The GPCH34231 fits cooling loads of about 38,000 to 40,000 BTUh. Compared with the 3 ton GPCH33631, it adds 3,000 BTUh of total cooling and 175 CFM, with the same 24.8 MCA circuit and 35 amp breaker. That makes it a practical upsize when a 3 ton struggles on peak afternoons but the electrical service shouldn't change. If your load calculation lands closer to 45,000 BTUh, the 4 ton is the better match.
The extra airflow helps when ducts serve rooms far from the unit, or when a home has large west-facing windows. For winter heat, this size accepts Goodman heat kits from 5 kW up to 20 kW. Size the kit to your coldest weather and your electrical service.
Ideal for: Larger single-story homes, homes where a 3 ton runs nonstop on hot days, and small commercial spaces with loads between 3 and 4 tons.
Need more capacity? Step up to the 4 Ton Goodman R-32 Package Unit GPCH34831 for a 2-row condenser coil and 45,000 BTUh of cooling.
Recommended applications are general guidelines only. Actual system requirements depend on insulation, ductwork, climate, window area, occupancy, and a proper load calculation. Request free sizing assistance, contact Budget Heating, or call 813-885-7999.
What's Included
| Package Unit | GPCH34231: 3.5 Ton Packaged Air Conditioner (Straight Cool) |
|---|---|
| Cooling Capacity | 39,000 BTUh Total / 30,800 BTUh Sensible, 1,315 CFM |
| Efficiency | 13.4 SEER2 / 10.6 EER2 |
| Refrigerant | R-32, Factory Charged (61 oz.), Piston Metering |
| Compressor | Single-Stage Scroll Compressor |
| Optional Electric Heat | 5, 8, 10, 15, or 20 kW Goodman Heat Kit (Sold Separately) |
| Airflow Configuration | Horizontal Duct Connections; Downflow With PCCP Roof Curb & Plenum Kit |
| Electrical | 208/230V, Single Phase, 60 Hz; 24.8 MCA, 35 Amp Max Overcurrent (Without Heat Kit) |
The GPCH34231 ships at about 390 lb with a 14 x 14 inch supply and a 14 x 24 inch return. Heat kit choices include the 10 kW, 15 kW, and 20 kW Goodman breakered heat kits. Fresh air options include the PCMD101-103 manual damper, PCMDM101-103 motorized damper, and GPHMD101-103 horizontal manual damper.
Cooling System & Cabinet Features
GPCH34231 Cooling System
- 39,000 BTUh total cooling, 30,800 BTUh sensible
- 1,315 CFM nominal airflow, 175 CFM more than the 3 ton
- 3/4 HP, 5-speed ECM indoor blower
- 4-row, 6.23 sq ft evaporator coil
- Single-stage scroll compressor (14.4 RLA / 112 LRA)
- 61 oz. factory R-32 charge
- 17.02 sq ft condenser coil with 24 fins per inch
- 13.4 SEER2 / 10.6 EER2
- Totally enclosed, permanently lubricated condenser fan motor
- 76 dB sound rating
GPCH34231 Cabinet & Installation
- Smallest GPCH3 approved for a 20 kW heat kit
- Same 24.8 MCA / 35 amp circuit as the 3 ton
- Medium chassis on the standard 66 x 34 inch footprint
- Manual, motorized, and horizontal fresh-air damper options
- Outdoor thermostat kit with lockout stat (OT18-60A) available
- Inline fuse kit INFKPKG01 available
- Louvered coil guard and gray powder-paint finish
- Meets 2023 FBC hurricane requirements when anchored
- Insulated blower compartment with access panels
- AHRI Certified, UL Listed
Specifications & Manuals
Product documentation includes GPCH3 technical specifications with expanded cooling, airflow, heat kit, and accessory data, installation instructions, and Goodman warranty terms to assist with equipment selection, installation, and service.
Frequently Asked Questions
How much more does the 3.5 ton GPCH34231 deliver than the 3 ton?
It adds 3,000 BTUh of total cooling (39,000 vs. 36,000) and 175 CFM of airflow (1,315 vs. 1,140). Both share the same cabinet, evaporator coil, compressor rating, and 24.8 MCA / 35 amp electrical requirements.
What electrical service does the GPCH34231 need with a 20 kW heat kit?
With the HKTPD201 20 kW kit on a single-point connection, Goodman lists 122.2 MCA and a 125 amp maximum overcurrent device. On two circuits, each requires 49.5 MCA with a 50 amp device.
Should I choose the 3.5 ton or the 4 ton GPCH3?
Choose the 3.5 ton when your load is about 38,000 to 40,000 BTUh and you want to keep a 35 amp circuit. If the load is closer to 45,000 BTUh, the 4 ton offers more capacity and a 2-row condenser coil, but it needs a 50 amp breaker.
What fresh air damper options fit the GPCH34231?
Goodman lists the PCMD101-103 manual damper and PCMDM101-103 motorized damper for curb applications, and the GPHMD101-103 manual damper for horizontal installs.
How much R-32 does the 3.5 ton GPCH3 contain?
The GPCH34231 is factory charged with 61 oz. of R-32 refrigerant.
What sound level does the GPCH34231 operate at?
Goodman rates the 3.5 ton at 76 decibels, the same as the 3 ton and 4 ton models.
GPCH3 Technical Specifications
