Omega CN9000A Series User Manual page 80

Hardware required to make units is as follows:
CN9121A + BD9031A makes a CN9131A
CN9121A + BD9041A makes a CN9141A
CN9121A + BD9051A makes a CN9151A
CN9221A + BD9031A makes a CN9231A
CN9221A + BD9041A makes a CN9241A
CN9221A + BD9051A makes a CN9251A
NOTE
230VAC units use different modules for BD9041A or BD9051A
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