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Installation

VAV-SVN09B-EN 17

Communication Link Wiring

UCM VV550

Follow these guidelines for Comm5 wiring:

• Use 22 AWG unshielded Level 4 communication wire

for most Comm5 installations

• Use shielded Level 4 wire for Comm5Tracker and

VariTrac™ CCP installations

• Always use termination resistors

• Use 105, watt, 1% resistor at each end for Level 4 wire

• Use 82.5, watt, 1% resistor at each end forTrane purple

wire

• Use the daisy chain topology for Comm5 links

• Limit the Comm5 link to 4500 feet

• Limit the link to 60 devices

• Limit zone sensor communication stubs to 8 per link,

50 feet each (maximum)

• Use one repeater for an additional 4500 feet, an

additional 60 devices, and an additional 8

communication stubs

Limit the distance of Comm5 links to 4500 feet. In addition,

limit Comm5 links to 60 devices.The BCU, repeater, and

Rover™ do not count toward this total.

Daisy chain

Although other topologies have been used in the past, we

recommend using only the daisy chain topology on your

Comm5 installations.The likelihood of communication

problems increases with other configurations.

Zone sensor comm stubs

For the most reliable communications, limit the number of

zone sensor communication stubs to 8 per Comm5 link.

Each stub should not exceed 50 feet. Exceeding these

limits increases the likelihood of communication

problems.

Binary Outputs

Wiring to air damper is factory installed but the outputs to

reheat or fan control need to be field installed when

applicable.

Note: All field installed wiring must comply with NEC and

local codes.

11 75 OFF OFF ON OFF ON ON

12 76 ON ON OFF OFF ON ON

13 77 OFF ON OFF OFF ON ON

14 78 ON OFF OFF OFF ON ON

15 79 OFF OFF OFF OFF ON ON

16 80 ON ON ON ON OFF ON

17 81 OFF ON ON ON OFF ON

18 82 ON OFF ON ON OFF ON

19 83 OFF OFF ON ON OFF ON

20 84 ON ON OFF ON OFF ON

21 85 OFF ON OFF ON OFF ON

22 86 ON OFF OFF ON OFF ON

23 87 OFF OFF OFF ON OFF ON

24 88 ON ON ON OFF OFF ON

25 89 OFF ON ON OFF OFF ON

26 90 ON OFF ON OFF OFF ON

27 91 OFF OFF ON OFF OFF ON

28 92 ON ON OFF OFF OFF ON

29 93 OFF ON OFF OFF OFF ON

30 94 ON OFF OFF OFF OFF ON

31 95 OFF OFF OFF OFF OFF ON

32 96 ON ON ON ON ON OFF

33 97 OFF ON ON ON ON OFF

34 98 ON OFF ON ON ON OFF

35 99 OFF OFF ON ON ON OFF

36 100 ON ON OFF ON ON OFF

37 101 OFF ON OFF ON ON OFF

38 102 ON OFF OFF ON ON OFF

39 103 OFF OFF OFF ON ON OFF

40 104 ON ON ON OFF ON OFF

41 105 OFF ON ON OFF ON OFF

42 106 ON OFF ON OFF ON OFF

43 107 OFF OFF ON OFF ON OFF

44 108 ON ON OFF OFF ON OFF

45 109 OFF ON OFF OFF ON OFF

46 110 ON OFF OFF OFF ON OFF

47 111 OFF OFF OFF OFF ON OFF

48 112 ON ON ON ON OFF OFF

49 113 OFF ON ON ON OFF OFF

50 114 ON OFF ON ON OFF OFF

51 115 OFF OFF ON ON OFF OFF

52 116 ON ON OFF ON OFF OFF

53 117 OFF ON OFF ON OFF OFF

54 118 ON OFF OFF ON OFF OFF

55 119 OFF OFF OFF ON OFF OFF

56 120 ON ON ON OFF OFF OFF

57 121 OFF ON ON OFF OFF OFF

Table 8. DIP switch settings (continued)

UCM

Unit #

Eware

Address Dip 1 Dip 2 Dip 3 Dip 4 Dip 5 Dip 6

58 122 ON OFF ON OFF OFF OFF

59 123 OFF OFF ON OFF OFF OFF

60 124 ON ON OFF OFF OFF OFF

61 125 OFF ON OFF OFF OFF OFF

62 126 ON OFF OFF OFF OFF OFF

63 127 OFF OFF OFF OFF OFF OFF

Table 8. DIP switch settings (continued)

UCM

Unit #

Eware

Address Dip 1 Dip 2 Dip 3 Dip 4 Dip 5 Dip 6

1 2 ... 12 13 14 15 16 17 18 19 20 21 22 ... 55 56

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Trane Round In/Round Out Manual de instalación Pagina 17

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