Chapter 3 Termination board wiring
Figure 14. Tracker field wiring connections
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Line voltage |
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| 24 Vac |
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LOAD
Line voltage
Comm5 device | Comm5 device | ||||||
A |
| A | Comm5 | A |
| A | Comm5 |
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| link |
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| link |
B |
| B | B |
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Splice
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1 | 24VAC |
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2 |
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3 |
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4 | ALARM | RELAY |
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5 | 3 | |||
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PRIORITY | SHUTDOWN |
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6 |
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8 | METER | INPUT |
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9 | 4 | |||
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THERMISTOR |
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10 |
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11 |
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12 |
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13 | COMM |
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14 |
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15 |
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Legend
= Transformer
= Thermistor device per Trane specifications
= Termination resistor
= | Twisted pair, shielded wire | = | Earth ground |
per Trane specifications | |||
= | Shield termination | = | Shield ground |
= | Contact points | = | Figure note |
Figure Notes:
1All customer wiring must be in accordance with national, state, and local electrical codes.
2Trane recommends a dedicated transformer for 24 Vac power.
3Alarm relay circuit must not exceed 24 Vac, 1 A.
4Do not apply voltage to the priority shutdown inputs.
5Example of Comm5 communication link wiring. See
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