One of the key issues in bus and train workshops today is to save as much time as possible to avoid costly downtimes for their customers and cut service costs. The new heat belt from Dometic WAECO reduces the service time on bus and train air conditioners up to 80%.
Using conventional practice, servicing high-volume A/C systems takes several hours – about 6 to 10 hours for trains, 3 to 5 hours for buses. The main reason for this is the freezing refrigerant collector in the A/C system. That means service technicians have to wait until the collector is heated back up by the ambient temperature to get the remaining refrigerant out of the system. Many workshops are using a fan heater to accelerate the process. Alas, without success as most of the hot air is passing by and won’t reach the affected part of the tank.
THE WAECO AIRCONSERVICE HEAT BELT SOLUTION IS MUCH FASTER AND MORE EFFECTIVE
To prevent freezing of the refrigerant collector, a special heat belt is fitted at the lowest possible point of the collector. The heat belt is switched in line with the compressor of the A/C service unit, so the heating process starts immediately at the beginning of the refrigerant recovery.
The new heat belt works in combination with our A/C service units ASC 3500 G LE Low Emission and ASC 3300 G. Naturally, the highest cost savings are achieved by using it with the Low Emission unit.
Connect the ASC 3300 G/3500 G LE service unit to the A/C system and start the recovery process.
After about 60 min the refrigerant collector of the A/C system starts to freeze. From now on you would have to wait until the collector is heated back up by the ambient temperature to get the remaining refrigerant out of the system.
To force against the freezing process, the heat belt is fitted at the lowest possible point of the collector before starting the recovery process. Switched in line with the compressor of the A/C service unit, the heat belt comes into effect straight from the beginning of the recovery process.