Two OP-codes are available for fast fill valves.

OP-code 2 requires that the drain valve be open prior to opening the fast fill valve. The original serial software release did not require the drain valve to be open and, in many cases, the fast fill valve was opened due to the level switch "bobbing" and tripping the low level switch. A change in software was made to prevent the nuisance deployment of the fast fill valve. Version 00048 (and later) reflects this change.

OP-code 7 is used when the fast fill valve should replenish water in the module without the drain being open. This would be typically used in the last module of the CBW for standing bath applications. At transfer time, some water is transferred out of the last module with the goods and must be replenished using a fast fill valve.

mrs 5-29-01