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Chapter 4 Input/output functions and wiring for typical applications
32 CNT-SVX07C-EN
Figure 16. Two-pipe heating/cooling unit with face-and-bypass damper
LonTalk
in
Entering water
temperature
Outdoor air or
generic temperature
24 V
†
Exhaust (or fan, medium speed)
24 V
†
Fan, low speed
24 V
†
Fan, high speed
Low-coil-temperature detection
(closed=normal)*
Condensate overflow (closed=normal)*
Occupancy (open=occupied)*
LonTalk
H
N
24 Vac
24 V
†
Generic/baseboard heat
24 V
†
Heating/cooling isolation valve, open/close
out
Fan status (closed=on)*
24 V
†
Outdoor air damper actuator
Discharge air
temperature
24 V
†
Face-and-bypass damper actuator
Open
Close
Open
* All binary inputs are configurable.
†
Connect 24 V to an AC POWER (24V) terminal.
Close
AI4 input: See
Figures 5 and 6
on page 20 for
wiring options