Our Low Emission concept explained

LOW EMISSION

ENVIRONMENTALLY SOUND AND PROFITABLE

Eco-friendly technology for use with R 134a: the ASC Low Emission series recovers almost 100 % of the refrigerant during A/C service. How does it manage to do so? Refrigerant loss mainly occurs in the phase when the refrigerator oil is forced out from the used oil container. The ASC Low Emission series uses a pressure-tight container.

Moreover, the refrigerant escaping during used oil discharging is collected in the used oil container, recovered and returned to the refrigerant tank. The result is a refrigerant loss rate of close to zero percent! The accurate identification of the amount of recovered refrigerant also allows conclusions to be drawn about the tightness of the air conditioner (diagnosis tool).

  1. Patented, professional feeding system
    for fresh oil and UV additive
  2. 3 separate weighing cells
    for oil management (used oil / fresh oil / UV additive)
  3. Refrigerant tank with preassembled condenser and fan
    for accurate indication of the recovered amount of refrigerant
  4. Special, 8-bearing weighing platform
    with high-capacity weighing cell (100 kg load capacity).
    User friendly: no calibration needed
  5. Increased pressure due to heating band on the refrigerant tank
    for complete charging of the A/C system even at high ambient temperature
  6. Patented, low-emission used oil container
    prevents refrigerant loss during used oil purging; the refrigerant recovered with the used oil is supplied to the refrigerant tank and included in the weighing
  7. Vacuum phase
    The vacuum pump ensures deep down evacuation of the A/C system. It pumps the evaporated refrigerant into the internal container of the Low Emission service unit, so no refrigerant can escape into the environment.
scheme-low-emission

HOW TO IDENTIFY A LOW EMISSION UNIT –

ONLY REAL WITH FOUR-STEP DISCHARGE

Most A/C service units are using three process steps: refrigerant recovery, evacuation and recharging. WAECO ASC Low Emission service units are using an additional process step to ensure close to 100 % refrigerant recovery. In this process step the vacuum pump teams up with the compressor to also recover the refrigerant contained in the oil. It is collected in the patented used oil container and then drained into the internal storage tank.

The additional step has two major benefits. First, there’s virtually no refrigerant lost or escaping into the environment. Second, the exact amount of the recovered refrigerant can be identified in the weighing. This avoids misinterpretation with regard to the tightness of the A/C system, which would otherwise lead to unnecessary trouble-shooting and costly repairs.

4-steps-low-emission
Step 1
Refrigerant recovery
Step 2
Low Emission phase
Step 3
Vacuum phase / recovery
Step 4
Refrigerant recharging

THE EU F-GAS REGULATION

The F-gas regulation of the European Union has been in force since 2015. Aiming at a reduction of fluorinated greenhouse gases, it regulates, among other things, the import quantities for R 134a refrigerant. As a result, R 134a is growing more and more expensive.

Invest in a low-emission service unit now to be able to offer your customers an attractive and cost-efficient A/C service in the long run. Dometic WAECO’s well engineered low-emission concept keeps you a step ahead of your competitors.

Phase-down timetable for R 134a

Phase-down timetable for R 134a

SAVE WITH LOW EMISSION!

Despite the fact that modern vehicles require less and less refrigerant, R 134a is increasingly becoming a scarce resource. This is not only due to the limited import quantity (F-gas regulation), but also to the shut-down of a factory in Europe and China’s failure to deliver the promised amounts. As a result, the price for R 134a rose from about 6 € to some 17 € in the period from January to August 2017 alone, and there’s no end to it.

That means it is all the more important for workshops to save costly refrigerant. After all, A/C service is impossible without it … and vehicles with R 134a A/C systems will continue to come in for service for a long time to come. A low-emission A/C service unit for R 134a will therefore pay off in the future, too!

Expected price increase + 283 %!

price-increase-en

A/C SERVICE COST SAVINGS WITH LOW-EMISSION CONCEPT

A/C service R 1234yf without low-emission concept
Average amount of refrigerant charged into the A/C system 600 g
Average market price for R1234yf refrigerant 130.00 € / kg
Refrigerant lost during used oil purging 25 g 3.25 €
Refrigerant recovered from the A/C system 95 % 3.90 €
Refrigerant lost per service 7.15 €


For 3 x A/C service per week, the annual loss on refrigerant is 1,115.40 €
A/C service R 1234yf with low-emission concept
Average amount of refrigerant charged into the A/C system 600 g
Average market price for R1234yf refrigerant 130.00 € / kg
Refrigerant lost during used oil purging 0 g 0.00 €
Refrigerant recovered from the A/C system 99.9 % 0.08 €
Refrigerant lost per service 0.08 €


For 3 x A/C service per week, the annual loss on refrigerant is 12.48 €

Annual savings per year with low-emission concept 1.102,92 €,
Annual savings in 8 years with low-emission concept 8.823,36 €

SAVING REFRIGERANT WITH LOW EMISSION EQUIPMENT PAYS OFF IN ANY CASE – EVEN WITH REFRIGERANTS THAT ARE NOT IN SHORT SUPPLY.

Without low emission

Refrigerant discharge without Low Emission: The A/C system is not emptied completely. The remaining refrigerant generates a residual pressure of about 500 mbar (absolute pressure).

Vacuum phase without Low Emission: The remaining refrigerant (500 mbar) is discharged into the atmosphere via the ventilation side of the vacuum pump. Depending on the service unit this amounts up to 10 % of the refrigerant to be recycled.

Used oil discharge without Low Emission: The refrigerant contained in the used oil escapes through the vent holes of the used oil container into the environment. Depending on the service unit the loss amounts to 40 – 100 g per service.

With low emission

Refrigerant discharge with Low Emission: The compressor discharges the refrigerant from the A/C system up to a residual pressure of about 500 mbar. Then the deep-discharge with the Low Emission technology starts.

Deep-discharge with Low Emission: The compressor teams up with the vacuum pump to achieve a genuine deep-discharge of almost 100 %. As a result, virtually no refrigerant is lost.

Used oil discharge with Low Emission: The refrigerant is discharged by the vacuum pump from the hermetically sealed used oil container and then returned to the refrigerant tank by the compressor. That means you also recover the refrigerant contained in the used oil.

Professional standard

ASC by WAECO is, and has been for years, the abbreviation for excellent quality and cutting-edge technology in A/C service equipment. The series is constantly improved and complemented to meet future requirements. All ASC service units are state of the art and fully automatic

Be a successfull A/C professional

Use our comprehensive range of equipment for service and repairs on automotive A/C systems to make your company an efficient and successful A/C workshop. Polar bear Eddie supports you with useful information and advertising material that will keep you an Eddie nose length ahead of your competitors!

CONTACT US

Dometic WAECO International GmbH
Hollefeldstraße 63
D-48282 Emsdetten

Tel +49 (0) 2572 879-0
Fax +49 (0) 2572 879-300
Mail info@dometic-waeco.de
Net www.dometic.de