by Jon » Mon Jun 13, 2005 9:25 pm
We bill by the ounce, too. Tracking is pretty easy once you set up a p/n for ounces. We're GM so a 30 # tank is p/n 12356150, add a period to the end of the p/n and 12356150. becomes your ounce p/n. When you hand out a tank, you post off one of 12356150 to keep your on-hand count correct. At the same time you receipt 12356150. in the amount of 480 (16 ounces/pound times 30 pounds). You can put in a receipt reference like "BULKCONVERT" so it's easy to spot in your transaction journal.
If service is having Parts charge out the full system capacity, valid even under GM warranty, there should never be any shortage. If there are "ounces" left in inventory when a new 30# tank goes out then service gets a policy adjustment to zero out the uncharged ounces. Now that R134a is getting expensive, all of the service people are much more attentive to making sure that the refrigerant gets on the RO and not on the policy ticket.
Billing out ounces keeps rounding to a minimum which is fairer to the customer, especially with current pricing of R134a. Tazz121 is right, you can't bill half parts.
Making the base p/n for ounces the same as for the 30 # tank works for the warranty clerk too since the correct p/n is already there when they submit a claim that requires entry of the GM p/n, dropping the period from the end doesn't cause them any grief.
Rob, R134a is safer for the environment than R12 was but it still depletes ozone in the upper atmosphere, thus the EPA mandate for recovery and recycling. If we eventually go to CO2 refrigerant we may be able to vent that. At least one of the proposals would be to pull CO2 from the atmosphere rather than by some other process that would add net CO2 and increase the greenhouse effect. Cost issues will probably still warrant recovery and recycling of pure CO2. All we need is equipment that can deal with pressures in the 2500-3000 psi range !
Jon