Manual 2100-680
Page 5 of 18
In all Occupancy Modes
If room relative humidity is higher than the user-defined
dehumidification setpoint, both Dehumidification
(DO12) and Fan (BO4) outputs are energized to reach
the RH% setpoint and the room controller.
NOTE: A relay is installed in the unit which will
disable dehumidification on a call for cooling or
heating.
See page 41 of Advanced Programming & User
Interface Setup Guide (manual 2100-681) for
occupied and unoccupied settings adjustments.
Wiring
Reference unit installation manual for wiring
instructions.
Sequence of Operation
Occupied Mode
Setpoints revert to those defined by occupied cooling
and heating.
Stand-by Mode (only available when PIR motion
detector sensor is used)
Setpoints revert to those defined by stand-by cooling
and heating.
Unoccupied Mode
Setpoints revert to those defined by unoccupied heating
and cooling.
Occupied Override Mode
System reverts to occupied mode for duration
determined by “ToccTime” parameter.
Options
• Wireless adapter modules for BACnet models are
available.
• Three (3) universal inputs can be used and
configured for advanced functionality as required
by the application.
NOTE: RC (5) and RH (7) must both be powered for
heating and cooling operation.
BO 1 - Aux
BO 2 - Y2
BO 3 - Y1
BO 4 - G
RC (24 Vac)
C (Common)
RH
BO 8 - W1
UO 9 - W2
UO 10 - Econo
UO 11
- Heat
UO 12
+
-
UI 16
UI 17
Common
UI 19 - CO2
UI 20 - RS
Common
UI 22 - SS
UI 23 - OS
UI 24 - Airflow
13 14 15 16 17 18
7 8 9 10 11 12
19 20 21 22 23 24
1 2 3 4 5 6
Terminal Designation Function
1 BO 1
ON/OFF VENT OUTPUT PER
SCHEDULE
2 BO 2 Y2 COMP OUTPUT
3 BO 3 Y1 COMP OUTPUT
4 BO 4 G OUTPUT
5 RC COOL 24VAC IN
6 C 24VAC COM
7 RH HEAT 24VAC IN
8 BO 8 W1 OUTPUT
9 UO 9 W2, OB VALVE OUTPUT
10 UO 10 0-10V CO2 VENT OUTPUT
11 UO 11 EMERGENCY HEAT OUTPUT
12 DO 12 DEHUMIDIFICATION
13 BACnet+ BACNET
14 BACnet- BACNET
15 BACnet ref BACNET
16 UI 16 NOT USED
17 UI 17 SERVICE ALARM
18 Common NOT USED
19 UI 19 0-10V AUX CO2 INPUT
20 UI 20 24VAC OUT
21 Common 24VAC COM
22
UI 22 NOT USED
23
UI 23 NOT USED
24
UI 24 NOT USED
Not Used
DO 12 - Dehum
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