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GPCH34231 is a 3.5-ton Goodman GPCH3 R-32 packaged air conditioner built for ducted cooling. Horizontal discharge (packaged AC-only).
A packaged air conditioner combines the compressor, condenser coil, evaporator coil, and blower into a single outdoor cabinet—often installed at ground level or on a rooftop—so you don’t need a separate indoor air handler cabinet inside the building.
At-a-glance (this exact model)
| Nominal size | 3.5 ton (model code 42) |
|---|---|
| Rated cooling capacity | 39,000 BTU/h total |
| Sensible capacity (temperature drop portion) | 30,800 BTU/h |
| Efficiency ratings | 13.4 SEER2 / 10.6 EER2 — SEER2 reflects seasonal cooling efficiency and EER2 reflects efficiency at peak conditions; higher numbers mean more cooling per unit of electricity. |
| Refrigerant | R-32 (charge: 61 oz) |
| Indoor airflow (nominal) | 1,315 CFM via 5-speed ECM blower |
| Sound level | 76 dB (per spec sheet) |
Sizing & selection guidance
“Ton” is a nominal sizing label (1 ton ≈ 12,000 BTU/h). Proper sizing still requires a load calculation (for example, ACCA Manual J/S or a commercial heat gain analysis). Oversized equipment can short-cycle and under-dehumidify; undersized equipment may struggle on design days.
What the model number tells you
Goodman packaged unit model numbers encode the nominal size and electrical configuration.
- 42 = 3.5 ton nominal size
- 3 = 13.4 SEER2 efficiency tier in this series
- 1 = 208/230 V, 1 phase, 60 Hz
Core components & performance details
| Compressor | Scroll compressor, single-stage (RLA 14.4, LRA 112.0) |
|---|---|
| Condenser coil | Copper tube / aluminum fin |
| Evaporator coil | All-aluminum |
| Metering device | Piston |
| Condensate drain connection | 3/4" NPT |
| Indoor blower motor | ECM, 3/4 HP, 5.4 FLA, 5 speeds |
| Outdoor fan motor | 1/4 HP, 1.4 FLA, 22" blade |
This unit uses R-32 refrigerant (ASHRAE safety class A2L: lower toxicity with mild flammability). Installation and service should follow current local code requirements for A2L refrigerants and be performed by qualified technicians.
Airflow, ductwork & installation planning
| Duct openings (supply / return) | 14x14 / 14x24 (W×H, inches) |
|---|---|
| Airflow configuration | Horizontal discharge (packaged AC-only) |
For jobs that require electric heat, this series supports field-installed electric heat kits (5–20 kW options are listed for GPCH3). Heat kit selection should match local design loads and available electrical capacity.
Electrical requirements (verify before installation)
| Power supply | 208/230 V, 1 phase, 60 Hz |
|---|---|
| Minimum Circuit Ampacity (MCA) | 24.8 A |
| Maximum Overcurrent Protection (MOCP) | 35 A (use time-delay fuses or HACR breakers per spec sheet) |
Always verify final electrical data on the unit’s nameplate and size wiring per the National Electrical Code and local codes. Long wire runs may require larger conductor sizes.
Dimensions, clearances & weight
| Cabinet footprint (W×D) | 66" × 34" |
|---|---|
| Cabinet height references (A / B) | 32.5" / 35" (chassis size: Medium) |
| Weight (operating / shipping) | 380 / 390 lb |
Construction, durability & certifications
Standard features
- 13.4 SEER2 efficiency (2–5 ton sizes)
- Energy-efficient scroll compressor (see model-specific compressor details below)
- Multi-speed ECM indoor blower motor (5 speeds)
- Quiet horizontal discharge airflow
- Copper tube / aluminum fin condenser coil
- All-aluminum evaporator coil
- Totally enclosed, permanently lubricated condenser fan motor
- Fully charged system (refrigerant charge listed by model)
- Field-installed electric heat kit option (5–20 kW options listed for this series)
- AHRI Certified; UL Listed
- ENERGY STAR® certified: No (per manufacturer product page)
- ComfortBridge™ compatibility: No (per manufacturer product page)
Cabinet features
- Heavy-gauge galvanized-steel cabinet with architectural gray powder-paint finish
- Louvered condenser coil protection
- Aluminum foil-facing internal insulation reinforced with fiberglass scrim
- Fully insulated blower compartment with convenient access panels
- Meets cabinet air leakage requirements when tested to ASHRAE Standard 193
- One footprint across tonnages
- When properly anchored, meets 2023 Florida Building Code unit integrity requirements for hurricane-type winds (anchor bracket kits available)
Certifications: AHRI Certified and UL Listed (per manufacturer specification sheet). AHRI certification helps verify published performance ratings.
Common accessories for this chassis size
Accessory availability can depend on chassis size (Small vs. Medium/Large) and the installation configuration.
- Downflow Economizer (use with PCCP roof curb): DDNECNJPCHHA
- Downflow Plenum Kit (use with PCCP roof curb): PCP101-103
- Downflow Plenum Kit (R-8) (use with PCCP roof curb): PCP101-103 R8
- Elbow Flashing w/R-8 Liner: PCEF101-103
- Economizer Wiring Harness: 0259G00213
- External Horizontal Filter Rack: DPHFRA
- Horizontal Economizer: DHZECNJPGCHM
- Inline Fuse Kit: INFKPKG01
Plus 8 more listed accessories for this chassis size in the manufacturer’s spec sheet.
What you’ll typically need in addition to the unit
- Professional installation (set/anchor curb or pad, connect supply/return ductwork, connect condensate drain, connect power and controls).
- A compatible thermostat/control (often supplied separately).
- An outdoor service disconnect and properly sized branch circuit protection (per MOCP).
- If installed on a roof: the correct roof curb and any downflow/transition pieces required for your duct layout.
- Filters and filter rack solutions as required by your installation (manufacturer lists optional filter rack accessories).
Warranty
10-Year Parts Limited Warranty available with online registration completed within 60 days of installation (registration not required in California, Florida, or Québec; other limitations and exceptions may apply).
Before you order (quick checklist)
- Confirm you need an AC-only packaged unit (not a heat pump).
- Confirm nominal size: 3.5 ton and rated capacity 39,000 BTU/h.
- Confirm installation orientation/duct configuration: Horizontal discharge (packaged AC-only).
- Confirm your electrical service supports the unit’s MCA and MOCP.
- If adding an economizer or downflow setup, confirm the required curb/duct cover/relay kits and chassis-specific part numbers.
- Confirm local requirements for installing and servicing A2L refrigerants (R-32).
Let customers speak for us
I absolutely love how easy it is to use and how well they fit and look. Awesome!!
Excellent. Placed unit in a two room cabin with each inside unit on the same common wall. Outside temps were in the low 40’s and the cabin was quickly warmed.
Very easy to install, and with a little trouble shooting with help from tech. it was very quietly putting out ice cold air... Had a bad fuse in my disconnect....
This is a good air conditioner for the price. Our apartment living room and kitchen have been kept nice and cool. The complex we moved into actually already had these installed but I have been so happy with the performance I purchased one for my mom who lives in a tiny home, I'm an HVAC tech and it was about time to replace her HVAC. Yes, I recommend this.
We have zero regrets! No wait, one. That we didn’t get them sooner! We (my husband, self and 19yr old son) work outside noon-8am several days a week in Texas. It doesn’t matter how low you set your AC unit it’s just never enough and it just runs it into the ground. We finally decided to pull the plug. In my 40 years I’ve never slept so good. It’s like hotel good but in your own bed!!! Install was super easy because I watched him do it, LOL. I kid. I’ll ask for his install input and update but seriously he installed all 4 (3 bedrooms and 1 living room) in 2 days. Probably wouldn’t have taken so long if he didn’t have to pour a pad for them but it was well worth it! Last pic is from the Nest. They were installed Friday. Compare usage from Sat & Sun to before we got them! Insane!!!
This was best investment I've ever made. I put this on the wall on my porch that I've converted to a sun room. This extra space that I enclosed with plexiglass and wood and sealed with insulation stayed about 20 degrees different from out side. With a window unit and heaters. Now with the split unit it stays what ever temp I want it to be. The della split unit is so quite I have to put my ear on it to hear it run sometimes the out side unit is even quite. If you mount on outside wall that is a little thin and only a few inches thick it might give a little bit of a hum but so slight you have to want to hear it. Turbo cool or heat will cool or heat super fast. The system is perfect 👌 👍 🥰. I love it.
I live in Florida and our summers are brutal. I installed this in my garage.
It wasn’t a hard install but it took my dad and I about 8 hours. He ran the electrical.
Around this time of the year, my garage is around 82 degrees and +70% humidity, the air is very wet.
This morning it was 74” and 52% humidity.
The indoor and outdoor units are remarkably quieter compared to our house’s HVAC system.
I bought and installed 2 of the della mini splits in the last 8 months, one for my double wide 1800 sqf that I am remodeling little by little, and another for my daughters craftsman home. What an improvement! So silent! So efficient! So easy of operating. For the last 10+ years, we have been using windows AC units and radiant heaters after our central heat and air system broke. The suffering is over. We are saving $100 a month on the power bill and enjoying ourselves inside now. Our Great Pyrenees friends are enjoying the AC's too during the scorching hot summer days. They are pretty easy to install. Follow the instructions on the book and watch some videos on YouTube. On the second install, I made an electrical mistake and purchased the wrong breaker. I am only a landscaper by the way. No problem! I called the technical support number and a very nice tech called me back after just a few hours and figured it out by phone within 5 minutes. It is all great! We just keep it simple by using the remotes. I love the delay timer option. Now that the weather is cooling down (80's max), I set the timer so it doesn't come ON automatically before 12 pm. By the time the girls come from school, 75°f is back as set. GREAT PRODUCT, GREAT TECHNICAL SUPPORT
Installation was a breeze. Unit is working flawlessly. I love that it connected to my Alexa and I can voice control or use the Della app. I am going to purchase a second Della for our guest home.
Got these panels for my backyard as the wall for the Composting area. Black is good for absorbing the heat of the sun and is easy to hide the ugly things. It is a good quality product. The foot support is stainless steel and long enough to bind the ground and the panels. As it is with a good quality, it is just a little heavy, which may require two people to move around or install it.
Solid plastic material. Assembly was easy with a power screwdriver. Looks better than an ugly air conditioner unit.
Great value and just the right size. Note that if you want to place them in a straight line, you will need to use an electric screwdriver to tighten the screws.
Made from good quality materials. Very easy to install and assemble. Looks great to hide the trash bins. Would buy more for AC.
I use it to cover the trash can. It is very practical. This way you can't see the dirty surface of the trash can. I strongly recommend it.
Great product. Installation was very easy
What customers think about the store
Store offers excellent customer service with fast shipping and competitive pricing. Products arrive well-packaged and on time. Knowledgeable support staff assist with installations and technical questions. Customers appreciate quality HVAC systems, mini-splits...