Carrier 19DV Series Installation, Operation And Maintenance Instructions page 55

NOTE:
1. Field-supplied control connectors to be at least 0.75mm2 or larger. Supplied voltage of the wires in control
panel should be low (limited to 50V).
2. Each digital output loop shall be limited to a maximum of 1A AC RMS steady –stat @24Vac, high load relay is
recommended and the coil voltage of relay is 24VAC. Connect 5TB-1 to 3TB-1 and 5TB-2 to 3TB-2 for 24VAC
Fig 28 - 19DV – IOB3 wiring
Fig 29 - 19DV – IOB4 wiring
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