UCM Communication Cards
BMTW-SVN01F-EN 51
Comm4 Card
This card is used for Horizon absorption chiller, IntelliPak, TUC, UCP2,
UPCM, VAV II, VAV III, VAV IV, VAV wireless receiver, and Voyager
communication. A maximum of four of these cards per BCU can be used.
Note the color of the card (green), the numbers on the label, and the phys-
ical characteristics of the card as shown in Figure 20.
Figure 20. Comm4 UCM Communication Card
Figure Note:
Trane Part Number 4020 0979
Card identification tag: 50100757
Service part number: BRD0936
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