Lennox Prodigy 2.0 Application Manual page 27

A91 HUMIDITY SENSOR
Two separate shielded cables required.
Go to SETTINGS > RTU OPTION > EDIT PARAMETER = 106 (DEHUMID SETPOINT) and 107 (DEHUMID
DEADBAND) (see paragraph 6.3. for further details concerning dehumid set point)
Parameter 105 (Option 3) - Humiditrol
Additional conditions to activate Humiditrol
•
Blower energized.
•
Occupied time period.
•
One previous cooling demand must have occurred.
Parameter 105 (Option 4) - Relative Humidity Measurement
When an optional relative humidity sensor is installed, the relative humidity percentage can be displayed on the M3
Unit Controller and over the L Connection network via the network control panel or computer software client.
Option 4 is NOT used to control Humiditrol
Parameter 105 (Option 5) - Humiditrol
Condition is at least one previous cooling demand.
Parameter 105 (Option 6) - Humiditrol
Additional conditions to activate Humiditrol
•
Blower energized.
•
Occupied time period.
Parameter 105 (Option 7) - Humiditrol
®
Humiditrol reheat with no additional conditions.
0 - 10VDC = 0-100%
relative humidity
A91
VIN
VO
GND
One wire of the two
pairs is not connected.
Figure 6. Relative Humidity Sensor Diagram
®
Reheat
®
Reheat:
®
or Supermarket Reheat. Refer to figure 6 - RH sensor wiring.
®
Reheat
®
Reheat
®
Reheat:
®
Reheat
Page 27
J298A
P298
1 R
2 C
B
3 AI-1
4
C
HUM
5
6
TMP
7
D
8
DO-1
9
C
10 DO-2