HVACopediaGree · Mini-split · Cooling
Cooling and dry mode with protections
What happens, in order
- Room temperature at or above setpoint indoor fan, outdoor fan and compressor run, indoor fan at set speed
- When the room drops far enough below setpoint the compressor stops, the outdoor fan runs on 60 s and the indoor fan keeps its set speed; in the band between, the unit holds its previous state
- Reversing valve stays de-energized; setpoint range 61-86F
- Dry mode compressor and outdoor fan run with the indoor fan on low while room is above setpoint; compressor stops when room is below setpoint, outdoor fan runs on 60 s
- Anti-freeze from 6 minutes after the compressor starts, coil at or below 35.6F reduces compressor frequency; coil at or below 30.2F for 3 minutes stops the compressor and the outdoor fan stops 60 s later
- Compressor restarts when the coil is 42.8F or higher and the compressor has been off at least 3 minutes
- Current limiting 16A or less allows frequency to rise; 17A or more blocks a rise; 18A or more reduces frequency; 20A or more stops the compressor and the outdoor fan 60 s later
Timings and thresholds
| Item | Value |
|---|---|
| Minimum compressor off time | 3 min |
| Minimum compressor run time | 6 min |
| Outdoor fan run-on | 60 s |
| Freeze trip | Coil 30.2F or lower for 3 min |
| Freeze reset | Coil 42.8F or higher and 3 min off |
| Current limits | 16 / 17 / 18 / 20 A |
Applies to: Gree Livo GEN4 wall mini-split heat pumps 30k-36k
Models
More Gree mini-split sequences
- Compressor restart delay and minimum run time · Startup
- Anti-cold-air indoor fan delay · Heating
- Heating mode · Heating
- Heating mode (outdoor logic) and special modes · Heating
- Heating mode and anti-cold-air · Heating
- Heating, defrost, oil return and mode conflict · Heating
- Cooling and dry mode (multi-zone) · Cooling
- Cooling mode · Cooling
Related
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Source: Gree Livo GEN4 30-36k service manual (4LIV30-36HP230V1A), Technical Information - Function and Control. Written in our own words; timings can differ by model and software version, so check the manual for your exact unit.
For licensed technicians. Gas, electrical and refrigerant work must be done by a qualified, licensed person. Shut off power and gas before servicing, never bypass a safety control, and follow the manufacturer’s manual for the exact model; it and local codes always take priority. HVACopedia is not affiliated with any manufacturer; brand and model names only identify the equipment.