Wiring requirements and options
Figure 13. Electric heat unit with DX cooling
Fan status (closed=on)*
Occupancy (open=occupied)*
Condensate overflow (closed=normal)*
24 Vac H N
GND 24V 24V 24V BI1 | BI2 | BI3 |
AC POWER | BINARY INPUTS | |
ZONE SENSOR
SERVICE
PIN LED ZN GND SET FAN GND AI1
24 V†
Fan, high speed
24 V† Exhaust
24 V†
DX cooling
24 V†
Electric heat, stage 1 (optional)
24 V†
Electric heat, stage 2 (optional)
| 24 V† |
| Outdoor air damper actuator |
| 24 V† |
Open Close | Generic/baseboard heat |
|
BI4 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | STATUS |
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| LED |
BINARY OUTPUTS
ANALOG INPUTS | COMM5 | |
|
| COMM5 |
AI2 | AI3 +20 AI4 GND A | B A B LED |
On
Cancel
1 |
|
2 |
|
3 |
|
4 |
|
5 LonTalk | Entering water |
6 | temperature |
Discharge air temperature
} | LonTalk |
AI4 input: Seein Figures 5 and 6
on page 20 for
wiring options
out
Outdoor air or generic temperature
* All binary inputs are configurable.
†Connect 24 V to an AC POWER (24V) terminal.
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