• 2,100W heating from 800 W input
• 24L/day dehumidifying in DRY mode
• Genuine AC Infinity
Total environmental control
Most grow spaces end up with a stack of separate machines (an air conditioner for summer, a heater for winter nights, a dehumidifier for flower), each on its own thermostat. The TERRAFORM 9 brings those jobs into one unit. It reads temperature, humidity and VPD, and runs cooling, heating and fan through the same duct. When humidity is the problem, DRY mode turns it into a dedicated dehumidifier rated at up to 24 L a day.
It is also efficient at both ends of the year. AC Infinity rate it at 2,600 W of cooling from 1,000 W of input power, and 2,100 W of heating from just 800 W. Because it pumps heat rather than making it, you get roughly 2.6 W of heating or cooling for every watt it draws.
One duct for cooling, heating and fan
Setup is one duct from the unit to your tent for cooling, heating and fan, so moving between those modes needs no change to the ducting. DRY mode is different: dehumidifying needs a manual change to AC Infinity's two-duct arrangement, so it suits a stretch of dedicated dehumidifying such as late flower rather than day-to-day switching.
Controls
On the unit itself you set a target temperature or VPD, with 10 output levels for fine control rather than full-on, full-off cycling. AC Infinity state that, with a target set, it switches between cooling, heating and fan to hold it. Their adaptive AI switching, which adjusts between cooling, heating and fan in real time, requires a Controller AI+ or newer. Auto-restart with memory picks up where it left off after a power cut, and a safety shut-off stops it if it is tilted or overheats.
Self-evaporative drainage
Air conditioners pull water out of the air, and emptying tanks is the chore that makes people give up on them. The TERRAFORM 9 sends excess condensate to its condenser and evaporates it, which cuts down how often it needs draining. It is not completely drain-free: some modes and very humid conditions still need draining, and DRY mode needs the supplied drain pipe fitted.
Where it fits
AC Infinity rate the TERRAFORM 9 for grow tents up to about 3 × 3 m (10 × 10 ft). Real-world results depend on how much heat your lights put out, how warm the surrounding room is and how well the space is sealed. The unit sits outside the tent and ducts conditioned air in. Like every air conditioner, it moves heat rather than destroying it, so the room it sits in needs somewhere for that heat to go. A window seal up to 4 m long is included, and AC Infinity's installation guide covers venting and ducting.
Full specifications
| Manufacturer |
AC Infinity Inc. |
| Product / model |
TERRAFORM 9 / AC-ACN9 |
| UPC |
819137025516 |
| Cooling capacity |
2,600 W (9,000 BTU, SACC) |
| Cooling input power / current |
1,000 W / 4.5 A |
| Heating capacity |
2,100 W |
| Heating input power / current |
800 W / 3.5 A |
| Dehumidifying (DRY mode) |
Up to 24 L per day (AC Infinity rating; two-duct setup) |
| Modes |
Cooling, heating, fan and DRY (dehumidify); one mode at a time; DRY needs a manual change to two ducts |
| Smart controls |
Temperature, humidity, VPD; 10 output levels |
| Recommended grow tent |
Up to approx. 3 × 3 m (10 × 10 ft); heat-load dependent |
| Power supply |
220 to 240 V AC / 50 Hz, Australian plug |
| Refrigerant |
R290, 0.19 kg charge |
| Water resistance |
IPX4 |
| Duct |
150 mm (6″); ducts extend to 1.98 m and 1.68 m |
| Window seal |
Up to 4.0 m |
| Sensor probe |
Temperature and humidity, 3.66 m (12 ft) lead |
| Power cord |
2.43 m (8 ft) |
| Operating range |
Cooling 17 to 35 °C, heating 10 to 23 °C; 35 to 85% RH |
| Unit size |
388 × 402 × 704 mm (L × W × H), on transport casters |
| Boxed size / gross weight |
446 × 446 × 815 mm / 31.8 kg |
| Controller connectivity |
UIS; adaptive AI switching and Wi-Fi app need Controller AI+ or newer; not supported by Controller 69 series |
| Guides |
Quick start guide (PDF) · Programming guide |
Runs on its own, unlocks more with Controller AI+. The onboard controls work without anything else. Connect it to a
AC Infinity Controller AI+ and you add AC Infinity's adaptive AI switching, Wi-Fi app control, data logging, alerts and automations alongside the rest of your UIS gear.
It is not compatible with the Controller 69 series (Controller 69 Pro, Pro+ and earlier).
Setup and safety
• Keep it upright during transport and leave it standing upright before switching it on for the first time; follow the waiting time on AC Infinity's warning label on the box and unit. If in doubt, leave it overnight.
• It uses R290, a natural refrigerant that is flammable. Keep the unit away from ignition sources, never puncture the refrigerant circuit, and leave any refrigerant work to a licensed refrigeration technician.
• Use it indoors, upright, in a ventilated area. Plug it directly into a wall outlet on its own circuit; no extension leads or power boards.
• The rear exhaust fan may keep running at low speed after the compressor stops, until the unit is switched off. This is normal.
• Follow the supplied installation, ducting, drainage and clearance instructions before first use.
FAQ
Can it cool and dehumidify at the same time?
Cooling always pulls some moisture out of the air as a side effect, as every air conditioner does, so a TERRAFORM 9 cooling a hot, humid tent is drying it too. For dedicated dehumidifying you switch it to DRY mode, which needs a manual change to the two-duct setup and runs as its own mode rather than alongside cooling or heating. AC Infinity rate DRY mode at up to 24 L a day; like every dehumidifier rating, that is a maximum under test conditions, and a tent that is already fairly dry will see less.
The US site shows a TERRAFORM 8 at 12,000 BTU. Is this smaller?
No. The US TERRAFORM 8 is a different 115 V unit, and its 12,000 BTU figure is on the older ASHRAE scale. AC Infinity have confirmed to us that the TERRAFORM 9 is rated 9,000 BTU on the SACC scale (the more realistic standard), while the TERRAFORM 8 rates 8,000 BTU SACC. The TERRAFORM 9 is built for 220 to 240 V / 50 Hz and ships with an Australian plug.
Does it go inside the tent?
No. It sits outside the tent and ducts conditioned air in. The room it sits in needs to be between 17 and 35 °C for cooling, or between 10 and 23 °C for heating, and needs somewhere for the heat it removes to go.
What size tent does it suit?
AC Infinity rate it for tents up to about 3 × 3 m. A hot light load, a warm room or a leaky space will shrink that, so if you are running high-wattage lighting in a warm room, ask us before you order.
Do I need a controller?
No. It runs on its own onboard controls, where you set a temperature or VPD target. A Controller AI+ adds AC Infinity's adaptive AI switching, the Wi-Fi app, data logging and alerts.
Will it work with my Controller 69 Pro or Pro+?
No. The TERRAFORM 9 is not compatible with the Controller 69 series, and its adaptive AI switching is not available through Controller 69 Pro+ or earlier controllers. To connect it to the app and your other UIS devices you need a
AC Infinity Controller AI+ or newer. Without a controller it still runs on its own onboard controls.
Will I have to empty a water tank?
Much less often than a standard portable air conditioner, because it evaporates most condensate itself. Some modes and very humid conditions still need draining, and DRY mode needs the supplied drain pipe.
Is there a bigger model for large tents?
For now the TERRAFORM 9 is the only TERRAFORM coming to Australia.
