Additional ACR4 Operation and Maintenance Tips

Additional ACR4 Operation and Maintenance Tips

^ Be sure both valves on the ACR4 refrigerant tank are open before beginning any A/C recovery, recycling, vacuum and recharging procedures. This prevents pressure build up in the ACR4 and allows for free flow of refrigerant in and out of the tank.

^ ACR4 vacuum pump oil must be changed every 10 hours of pump operation. The ACR4 has an internal timer to notify when the oil should be changed. The oil level must be set to the correct level per the ACR4 operating manual. An over-filled reservoir will cause slow start-up of the pump, draw excess current and burnout the 15 amp delay reaction fuse in the PureGuard 2. THE PUMP OIL LEVEL MUST BE CHECKED ON A WEEKLY BASIS IF THERE IS FREQUENT FUSE BURNOUT.