AUTOOL LM708 · Dual-Circuit R134a and R1234yf Service Station
Service R134a and R1234yf in Separate Circuits
Service R134a and HFO-1234yf vehicles with independent refrigerant circuits and tanks. The 7-inch touchscreen guides recovery, evacuation, pressure/vacuum-hold checks and recharge, with three filling paths to suit the job. Five scales separately weigh both refrigerants, PAG oil, POE oil and used oil; a vehicle database, custom data and printed records support setup and service documentation.
- Independent R134a / HFO-1234yf
- 5 Separate Fluid Scales
- 7-Inch Guided Touchscreen
- 3 Filling Paths
- Vehicle Data & Printed Records
Key Features
Independent R134a and R1234yf Circuits
Independent Dual-Refrigerant Systems
LM708 is a dual-refrigerant machine for A/C service, with independent R134a and HFO-1234yf circuits and onboard tanks, reducing tank changes and cross-contamination risk.
Automatic Configured Workflow
After parameters are preset, LM708 runs recovery, evacuation, pressure/vacuum-hold leak checks, and recharge in sequence with touchscreen prompts.
Five Dedicated Scales
Weigh the two refrigerant tanks, PAG oil, POE oil and used oil separately.
Vehicle Database
Start setup with a database of over 20,000 vehicle models or enter custom service data, then verify the values against the vehicle and current OEM information.
Protected New-Oil Storage
Oil-bottle design limits new oil’s exposure to ambient air/moisture; separate PAG, POE and used-oil positions organize handling.
Recovered-Refrigerant Cleaning
Filter and separator clean recovered refrigerant for reuse when condition, procedure and local rules allow.
Three Filling Methods
Select low-pressure, high-pressure or combined high- and low-pressure hose filling to suit the service procedure.
7-Inch Touchscreen
Follow setup prompts and service status on the 7-inch touchscreen. Dedicated oil bottles and the built-in printer support fluid handling and job records.
Printed Service Records
Output maintenance data and operation records for the job file.
Four Languages
Choose English, German, Spanish or Chinese for the operating interface.
60 L/min Evacuation
Evacuate the system with the rated 60 L/min vacuum pump as part of the A/C service cycle.
100 kg Filter Cycle
Replace the filter-drier after each 100 kg of recovered refrigerant; use reset password 8609 only when the prescribed prompt is absent.
5 High-Precision Electronic Scales
Monitor R134a, HFO-1234yf, PAG oil, POE oil and used oil on five separate scales.
Rated Power
The LM708 is rated at 1100 W.
3 Years Warranty Support
Main unit: 3-year warranty. Standard accessories: 1-year warranty. Warranty Policy.
Safety & Compatibility
Keep Refrigerant, Oil, Couplers, and Circuits Separate
Never Cross-Connect Refrigerants
Use the independent R134a or HFO-1234yf system matching the identified vehicle refrigerant.
Keep Overfill Protection Enabled
Do not disable protection; keep the specified tank on its load platform and use only manufacturer-approved tanks.
Wear Eye And Hand Protection
Liquid refrigerant can cause frostbite and eye injury; ventilate and follow the refrigerant/oil safety information.
Isolate Power For Service
Disconnect power before disassembly or maintenance and use grounded regional-nameplate power.
Confirm PAG/POE And High Voltage
For hybrid/EV work, follow the exact OEM oil chemistry and high-voltage procedure.
Follow Up the Hold Check
A failed automatic check requires inspection and separate approved diagnosis.
Extension Cable Conductor Size
Avoid extension power cables with a copper-core cross-section below 1.5 mm².
Keep Flammables Away
Do not store gasoline or other flammable substances near the equipment.
Test Results
Verify Each Refrigerant Service Stage
Five Scale Records
After confirming the refrigerant and oil identity, use the five scales to document fluid movement during the selected service procedure and compare the amounts with the applicable OEM criteria.
Vacuum/Hold Result
If the hold check fails, verify the connections and continue with an approved leak-location method.
Database Values
Treat installed vehicle data as a starting point and verify against vehicle label/OEM information.
Printed Record
Document entered and measured service values, then complete any local recordkeeping requirements.
Post-Service Performance
Abnormal pressures or poor cooling require further electrical, airflow, mechanical or leak diagnosis.
Specifications
LM708 Specifications
| Service Scope & Compatibility | |
|---|---|
| Supported Refrigerant Types | HFO-1234yf / R-134a |
| Basic Functions | Refrigerant Recharge, Refrigerant Recovery, Vacuum Pumping, Filling |
| Automatic Mode | Yes |
| Applicable Vehicle Models | Fuel Vehicles, Hybrid Vehicles, New Energy Vehicles |
| Interface & Equipment | |
| Input Voltage | Regional version; confirm the exact nameplate. |
| Display | 7-inch Touch Screen |
| Languages | 4 |
| Device Appearance | Built-in Refrigerant Tank, More Compact and Aesthetic DesignAdded Back Panel for Direct Access to Maintenance |
| Fluid Handling & Capacity | |
| Add Refrigerant Oil | Automatic |
| Refrigerant Recovery Rate | Confirm the recovery rate and measurement conditions for your version. |
| Refrigerant Tank Capacity | Confirm each selected-version tank rating and permitted fill. |
| Number of Oil Bottles | 3 (2 New oil bottle, 1 used-oil bottle) |
| Oil Bottle Capacity | 350ml |
| Number of Electronic Scales | 5 |
| Filling Method Selection | HP/LP/HP+LP |
| Internal Refrigerant Circulation Purification | Yes |
| Records & Diagnostics | |
| Data Printing | Yes |
| Built-in Database | Yes |
| Operation Record Inquiry | Yes |
| System Automatic Leak Detection | Automatic pressure/vacuum hold check; follow up a failed result with an approved leak-location method. |
Manual & Downloads
Use the Manual for Setup and Service
AUTOOL LM708 User Manual
Open the PDF manual for LM708 dual-refrigerant recovery, evacuation, recharge, fluid scales, filling methods, circuit separation, maintenance, safety, and troubleshooting.
Package
What’s Included
- LM708 Main UnitDual-system refrigerant recovery machine.
- Red And Blue Service HosesService hoses for the matching refrigerant circuit.
- R134a And HFO-1234yf Quick ConnectorsRefrigerant-specific couplers.
- Regional Power CableConfirm plug and exact unit nameplate.
- User ManualLM708 documentation.
FAQs
Dual-Refrigerant Setup and Service Questions
What Refrigerants Does LM708 Support?
LM708 supports R134a and HFO-1234yf through independent refrigerant systems.
Does it identify refrigerant?
Confirm refrigerant and oil identity before selecting a service circuit; this unit does not identify the fluids.
What Is The Capacity Of Each Refrigerant System?
Published information lists 10 kg for each refrigerant system and also shows 12 kg × 2 internal tanks. Confirm both installed tank labels on the selected machine and follow their stated fill limits.
What do the five scales monitor?
R134a tank, HFO-1234yf tank, PAG oil, POE oil and used oil.
Is the database a substitute for OEM information?
No. Verify the installed record against the vehicle label and current OEM data.
Does automatic leak detection locate a leak?
No. Treat it as a pressure/vacuum-hold check and use separate approved diagnosis to find a leak.
Which charge paths are available?
LP, HP and combined HP+LP, used only when permitted by the service procedure.
When Should I Replace The Filter Drier?
Replace the filter drier for every 100kg of refrigerant recovered. Contact AUTOOL support when purchasing or replacing filter-related parts.
- Replace it after each 100 kg of recovered refrigerant. Use 8609 only when the current manual calls for that reset and the prescribed prompt is absent.
Can it service hybrid and EV A/C?
Only compatible R134a or HFO-1234yf systems with the exact OEM oil and high-voltage procedure.
Does it print service records?
Yes, the built-in printer outputs maintenance/operation data.
Is LM708 Fully Automatic?
Yes. After presetting parameters, LM708 can automatically perform refrigerant recovery, vacuuming, leak detection, and refilling according to the selected workflow.
What Are The Three Refilling Methods?
LM708 supports LP low-pressure hose filling, HP high-pressure hose filling, and HP+LP combined filling.
What Is The Filter Reset Password?
After replacing the filter, reset it on the device page. If the device does not prompt you, enter the universal password 8609 to complete the operation.
Why Is Overfilling Protection Important?
The refrigerant tank contains liquid refrigerant. Overfilling may cause an explosion, so do not turn off overfilling safety protection. The refrigerant tank should always stay on the load unit platform during operation.
What Safety Gear Should I Wear?
Wear safety glasses and gloves. Liquid refrigerant contact may cause frostbite and blindness. If contact occurs, flush the affected area with plenty of water and consult a physician immediately.
Can I Use Any Refrigerant Tank?
No. Use only the special refrigerant tank recommended by the manufacturer.
Does LM708 Support Printing?
Yes. LM708 is equipped with a printer for maintenance data printing, operation records, and service documentation.
