A/C-station buss R134a, m/ display

The NUNCHI CLIMATE BUSS R134a is a professional heavy-duty A/C service station designed for the demanding requirements of buses, coaches and other vehicles with large-capacity R134a air-conditioning systems.

Bus A/C systems are significantly larger than conventional passenger-car systems. They can contain considerably more refrigerant, more compressor oil, longer refrigerant lines and larger heat exchangers.

The BUSS R134a gives professional workshops the capacity and functionality required to service these larger systems efficiently and accurately.

BUILT FOR BUS A/C SERVICE

Servicing a bus is very different from servicing a passenger car.

• A large bus A/C system can include:
• Large R134a refrigerant charges
• Long refrigerant hoses and pipes
• Multiple evaporators
• Large condensers
• High-capacity compressors
• Larger compressor-oil quantities
• Multiple condenser and evaporator fans
• Roof-mounted A/C units
• Front and rear A/C circuits
• Complex refrigerant circuits

The NUNCHI CLIMATE BUSS R134a is designed with these demanding heavy-duty applications in mind.

DEDICATED TO R134a

The NUNCHI CLIMATE BUSS R134a is dedicated specifically to R134a, providing a straightforward professional solution for workshops servicing buses, coaches and commercial vehicles equipped with R134a A/C systems.

• A dedicated R134a machine provides important workshop advantages:
• One Refrigerant
• Dedicated Circuit
• Simple Operation
• Reduced Cross-Contamination Risk

There is no need to change between refrigerant types during normal operation.

For workshops servicing fleets containing large numbers of R134a vehicles, this makes the BUSS R134a a practical and efficient dedicated service solution.

COMPLETE HEAVY-DUTY A/C SERVICE

The NUNCHI CLIMATE BUSS R134a brings the essential stages of professional heavy-duty A/C servicing together in one service station.

RECOVER

Recover R134a refrigerant from the vehicle's A/C system.

RECYCLE

Process the recovered refrigerant for reuse according to the machine's operating procedure.

VACUUM

Evacuate the large A/C circuit to help remove air and moisture.

OIL

Manage compressor oil as part of the service procedure.

CHARGE

Accurately recharge the system with the specified quantity of R134a.

VERIFY

Test the A/C system after service to confirm correct pressures, temperatures and performance.

DESIGNED FOR LARGE REFRIGERANT CHARGES

One of the biggest differences between passenger-car and bus A/C servicing is system capacity.

Bus and coach A/C systems can require substantially more refrigerant than passenger vehicles.

The service equipment therefore needs to be capable of handling the demands associated with these larger refrigerant quantities.

The NUNCHI CLIMATE BUSS R134a is designed for this type of heavy-duty application, making it an ideal choice for workshops regularly working with:

• Buses
• Coaches
• Commercial Vehicles
• Other High-Capacity R134a Systems

PROFESSIONAL REFRIGERANT RECOVERY

Efficient refrigerant recovery becomes even more important when working with large A/C systems.

The greater the refrigerant charge, the more valuable efficient refrigerant management becomes.

• Professional recovery helps:
• Minimize refrigerant loss
• Reduce unnecessary refrigerant emissions
• Recover valuable R134a for reuse
• Reduce workshop refrigerant consumption
• Prepare the system correctly for repair
• Improve overall service efficiency

MORE REFRIGERANT MEANS RECOVERY EFFICIENCY MATTERS EVEN MORE.

For fleet operators servicing many vehicles every year, effective refrigerant management can provide significant operational and environmental benefits.

POWERFUL VACUUM FOR LARGE A/C SYSTEMS

Bus A/C systems can have a considerably greater internal volume than passenger-car systems.

Long refrigerant lines, large evaporators and large condensers increase the volume that must be evacuated.

• A correct vacuum procedure is essential for helping remove:
• Air
• Moisture
• Residual refrigerant vapor
• Non-condensable gases
• This becomes especially important following:
• Compressor replacement
• Hose or pipe replacement
• Condenser replacement
• Evaporator replacement
• Major system repairs
• Refrigerant leakage
• A system being left open for an extended period

A LARGE SYSTEM REQUIRES PROFESSIONAL EVACUATION.

ACCURATE R134a CHARGING

Correct refrigerant quantity is essential for efficient bus A/C performance.

• An incorrect refrigerant charge can affect:
• Cooling capacity
• Compressor operation
• Operating pressures
• Refrigerant circulation
• Oil return
• System efficiency
• Component reliability

The NUNCHI CLIMATE BUSS R134a allows the workshop to charge the system with the required quantity of R134a by weight.

CHARGE BY WEIGHT – NOT BY PRESSURE.

Pressure alone is not a reliable indication of the correct refrigerant mass because operating pressure changes with factors such as temperature and system load.

PROFESSIONAL OIL MANAGEMENT

Large bus A/C systems can contain significantly more compressor oil than conventional passenger-car systems.

Correct oil management is therefore an essential part of professional servicing.

• During service and repair, technicians should consider:

Oil Recovered → Oil Removed During Repair → Oil Remaining → Oil Required → Oil Added

Too little oil can result in insufficient compressor lubrication.

Too much oil can reduce heat-transfer efficiency and A/C performance.

• The objective is always:

CORRECT REFRIGERANT + CORRECT OIL = CORRECT SYSTEM OPERATION.

IDEAL FOR BUS COMPRESSOR REPLACEMENT

The compressor is one of the most important and expensive components in a bus A/C system.

When replacing a compressor, simply installing the new compressor and recharging the refrigerant may not be sufficient.

• The technician should determine:
• Why the compressor failed
• Whether contamination is present
• Whether metal particles are present
• Condition of the compressor oil
• Whether the system requires flushing
• Whether the receiver drier/desiccant requires replacement
• Correct oil quantity for the replacement compressor
• Correct R134a charge quantity

The BUSS R134a provides the recovery, evacuation, oil-management and charging capabilities required as part of a professional component-replacement procedure.

IDEAL FOR FLEET WORKSHOPS

The NUNCHI CLIMATE BUSS R134a is particularly suitable for organizations servicing multiple large vehicles.

• Typical Applications
• City buses
• Coaches
• School buses
• Shuttle buses
• Large commercial vehicles
• Fleet vehicles
• Agricultural machinery
• Construction machinery
• Other large mobile R134a A/C applications

KEEP THE FLEET MOVING

For a bus operator, A/C servicing is not simply about passenger comfort.

• Vehicle downtime can mean:
• Lost Operating Time
• Schedule Disruption
• Additional Workshop Costs
• Reduced Fleet Availability

The NUNCHI CLIMATE BUSS R134a provides a professional A/C service solution for workshops where vehicle uptime and service efficiency matter.

SERVICE MORE. DOWNTIME LESS.

PERFECT FOR BUS & COACH WORKSHOPS

• The NUNCHI CLIMATE BUSS R134a is an ideal solution for:
• Bus Operators
• Public Transportation Workshops
• Coach Companies
• Fleet Maintenance Centers
• Independent Heavy-Duty Workshops
• Commercial Vehicle Dealers
• Specialist Mobile A/C Workshops

For workshops regularly servicing high-capacity R134a systems, dedicated heavy-duty A/C service equipment can improve both productivity and service quality.

WHY CHOOSE THE NUNCHI CLIMATE BUSS R134a?

DESIGNED FOR LARGE A/C SYSTEMS

Built for demanding applications such as buses, coaches and other vehicles with high-capacity mobile A/C systems.

DEDICATED R134a SERVICE

A dedicated R134a configuration provides a straightforward solution for bus and fleet workshops.

HIGH-CAPACITY A/C SERVICE

Designed for the larger refrigerant and oil quantities associated with bus A/C systems.

PROFESSIONAL REFRIGERANT RECOVERY

Recover valuable R134a instead of unnecessarily losing refrigerant during service and repair.

POWERFUL EVACUATION

Suitable for the greater internal volume associated with large mobile A/C systems.

ACCURATE REFRIGERANT CHARGING

Charge the correct manufacturer-specified R134a quantity by weight.

PROFESSIONAL OIL MANAGEMENT

Support correct compressor-oil management during routine service and component replacement.

IDEAL FOR FLEET OPERATIONS

A professional solution for workshops servicing multiple buses, coaches and commercial vehicles.

REDUCE WORKSHOP DOWNTIME

Efficient A/C service procedures help get vehicles back into operation faster.

DEDICATED HEAVY-DUTY SOLUTION

A professional A/C service station focused specifically on the requirements of large R134a systems.

FROM PASSENGER CARS TO HEAVY-DUTY A/C

A bus A/C system presents a completely different service challenge from a conventional passenger vehicle.

More Refrigerant.

More Oil.

Longer Refrigerant Lines.

Larger Heat Exchangers.

Greater Internal System Volume.

Higher Service Demands.

The NUNCHI CLIMATE BUSS R134a is designed to meet those demands.